Browse Topic: Brake hoses

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Hot Impulse Test for Hydraulic Brake Hose AssembliesJ1833_202510 (Current)10/13/2025
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Automotive Brake and Steering Hose Standards Comm
Service Maintenance of SAE J1703 and SAE J1704 Brake Fluids in Motor Vehicle Brake SystemsJ1707_202106 (Current)6/10/2021
This SAE Recommended Practice provides basic recommendations for dispensing and handling of SAE J1703 and SAE J1704 Brake Fluids by Service Maintenance Personnel to assure their safe and effective performance when installed in or added to motor vehicle hydraulic brake actuating systems. This document is concerned only with brake fluid and those system parts in contact with it. It describes general maintenance procedures that constitute good practice and that should be employed to help assure a properly functioning brake system. Recommendations that promote safety are emphasized. Specific step-by-step service instructions for brake maintenance on individual makes or models are neither intended nor implied. For these, one should consult the vehicle manufacturer’s service brake maintenance procedures for the particular vehicle. Vehicle manufacturer’s recommendations should always be followed.
Brake Fluids Standards Committee
Test Procedures for Non-SAE Hydraulic HosesJ2545_202104 (Current)4/14/2021
This SAE Recommended Practice identifies test procedures and parameters which may be used to evaluate, qualify and inspect non-SAE hydraulic hoses or other hose constructions which do not conform to any established ISO or national standards defining hydraulic hoses. (Non-SAE hydraulic hoses are defined as those which do not conform to the categories listed in SAE J517.) It is not intended for evaluating fluoropolymer lined hose constructions or hose constructions with working pressures above 86 MPa.
Hydraulic Hose and Hose Fittings Committee
Hydraulic HoseJ517_201710 (Historical)10/18/2017
This SAE Standard provides general, dimensional and performance specifications for the most common hoses used in hydraulic systems on mobile and stationary equipment. The general specifications contained in Sections 1 through 12 are applicable to all hydraulic hoses and supplement the detailed specifications for the 100R-series hoses contained in the later sections of this document (see Tables 1 and 2). This document shall be utilized as a procurement document only to the extent as agreed upon by the manufacturer and user. The maximum working pressure of a hose assembly comprising SAE J517 hose and hose connectors per SAE J516, SAE J518, SAE J1453, etc., shall not exceed the lower of the respective SAE maximum working pressure values. When using SAE J517 hose for marine applications, reference SAE J1475, SAE J1942, and SAE J1942-1. The SAE J517 100R9, 100R10, and 100R11 hoses are discontinued due to lack of demand. For DOD orders see Appendix C. The SAE J517 100R1A, 100R2A, 100R2B, and 100R 2BT are discontinued due to lack of demand. For DOD orders replace 100R1A with 100R1AT, replace 100R2A, 100R2B, and 100R2BT with 100R2AT. The SAE J517 100R1AT maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R1 as type S. The SAE J517 100R2AT maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R2 as type S. The SAE J517 100R16 maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R16 as type S.
Hydraulic Hose and Hose Fittings Committee
Brake System Performance at Higher Mileage2017-01-25029/17/2017
The purchase of a new automobile is unquestionably a significant investment for most customers, and with this recognition, comes a correspondingly significant expectation for quality and reliability. Amongst automotive systems -when it comes to considerations of reliability - the brakes (perhaps along with the tires) occupy a rarified position of being located in a harsh environment, subjected to continuous wear throughout their use, and are critical to the safe performance of the vehicle. Maintenance of the brake system is therefore a fact of life for most drivers - something that almost everyone must do, yet given the potentially considerable expense, it is something that of great benefit to minimize. Additionally, the performance of the brake system (like the tires) can change over the useful life of the components, realized in the form of changing friction levels, fluid consumption, and drag at a brake corner level, and realized to the driver in the form of changing pedal effort, travel, response time, and fuel economy. Most studies of brake system performance, and most regulatory requirements that affect the design of the brake system, focus on the “near-new” condition. This is not accidental, the simple fact is that it is extremely difficult, expensive, and time consuming to realistically accelerate wear of brake components so that performance can be assessed in a worn condition. On a well-designed brake system, components in the hands of an average customer can last 5-10 years before wear out occurs, meaning that any practical study of wear effects must be greatly accelerated to occur within a typical vehicle development timeline. Environmental exposure involves many complex and time-dependent chemical reactions, which puts an upper limit on how much simulated field exposure can be accelerated. The present study is based primarily on evaluation of brake corner performance after vehicle-level durability test exposure. Brake corners from a diverse selection of vehicles (including two hybrid vehicle examples) were retrieved from end-of test vehicles that had received the structural equivalent of 160,000 km of test exposure, along with 10 years of simulated corrosion exposure, and then subjected to performance and residual drag tests. To supplement the findings, lab-based studies of brake hardware with simulated 50% worn use and corrosion exposure are also referenced. Brake corner performance including apparent friction level, fluid consumption, drag, torque variation, and torque hysteresis were studied and related to observations of the physical condition of the parts. The effect of the measured brake corner level performance was then accounted for at a vehicle level in the form of pedal feel, fuel economy, and lining life for representative case studies.
Antanaitis, David B., Robere, Matthew
Accelerated Testing of Brake Hoses for Durability Assessment2017-01-03893/28/2017
The durability performance of brake hoses is a crucial issue for such components. Accelerated fatigue testing of brake hoses is necessary for understanding achievable lifetime, actually computation of durability is quite cumbersome due to the many different materials the hoses are made from. Despite SAE standards are available, accelerated testing of brake hoses subject to actual torsional and bending stresses seem important to provide relevant feedback to designers. In this paper, an innovative methodology for assessing the fatigue behavior of brake hoses of road vehicles is proposed. A dynamic testbed is specifically designed and realized, able to reproduce the actual assembly conditions of the hoses fitted into a vehicle suspension. The designed testbed allows to replicate actual loading conditions on the brake hoses by simulating the vertical dynamics and steering of the suspension system together with brake pressure. A procedure to extract the relevant loading cycles for damage is proposed and applied. The tests performed by exploiting the new testbed are in good agreement with the reported lifetimes of actual brake hoses fitted into test vehicles.
Mastinu, Giampiero, Gobbi, Massimiliano, Ballo, Federico, Previati, Giorgio, Cantoni, Carlo
Hydraulic HoseJ517_201612 (Historical)12/15/2016
This SAE Standard provides general, dimensional and performance specifications for the most common hoses used in hydraulic systems on mobile and stationary equipment. The general specifications contained in Sections 1 through 12 are applicable to all hydraulic hoses and supplement the detailed specifications for the 100R-series hoses contained in the later sections of this document. (See Tables 1A and 1B). This document shall be utilized as a procurement document only to the extent as agreed upon by the manufacturer and user. The maximum working pressure of a hose assembly comprising SAE J517 hose and hose connectors per SAE J516, SAE J518, SAE J1453, etc., shall not exceed the lower of the respective SAE maximum working pressure values. When using SAE J517 hose for marine applications, see SAE J1475, SAE J1942 and SAE J1942-1. The SAE J517 100R9, 100R10 and 100R11 hoses are discontinued due to lack of demand. For DOD orders see Appendix C. The SAE J517 100R1A, 100R2A, 100R2B and 100R 2BT are discontinued due to lack of demand. For DOD orders replace 100R1A with 100R1AT, replace 100R2A, 100R2B and 100R2BT with 100R2AT. The SAE J517 100R1AT maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R1 as type S. The SAE J517 100R2AT maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R2 as type S. The SAE J517 100R16 maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R16 as type S.
Hydraulic Hose and Hose Fittings Committee
Identification and Installation of Air Brake System ComponentsJ2580_201611 (Historical)11/1/2016
This Recommended Practice covers air braked trucks, truck-tractors, trailers and buses. It enumerates the identification and installation of the air brake components not covered in other SAE recommended practices and standards.
Truck and Bus Brake Systems Committee
Brake Flexible Dynamic Analysis Attached to McPherson Suspension, Optimizing the Input Parameters in IPS Cable Simulation2016-36-015710/25/2016
The high level of reliability of virtual analysis for suspension system development should not be thinking only for comfort and performance purpose, considering the `growing number of failures due to the touch between components in dynamic condition. The study establishes a simple and optimized methodology, able to predict more accurately the flexible brake hose path subject to the steering motion and associates with the independent suspension course, aiming the best route in order to achieve a low cost and robust design. In turn, the flexible brake hose non-linear model invalidates the multibody study to get the best route. However, with the aid of motion making use of NX9 [1] CAD [2] software was prepared dynamic movement that subjects front independent suspension system that establishes a Cartesian routine that maps 977 points, much higher than 9 points from previous studies, comprising a more accurate path performed by the hose. This data served as input to the IPS [3] software for the construction of flexible model to be simulated, were assigned mechanical and geometrical properties for each component. Finally, it was set to IPS software the dynamic suspension system routine, thus yielding the flexible brake hose behavior under certain circumstances, verifying the effectiveness of the component to the package requirements, avoiding undesired dynamic interference and early degradation of the flexible element.
Mayer, Paulo Augusto, Petronilho, Anderson, Tognolli, André, Batista, Fabio Santos, da Silva, Jamilton Vidal
Model-Based Pressure Control for an Electro Hydraulic Brake System on RCP Test Environment2016-01-19549/18/2016
In this paper a new pressure control method of a modified accumulator-type Electro-hydraulic Braking System (EHB) is proposed. The system is composed of a hydraulic motor pump, an accumulator, an integrated master cylinder, a pedal feel simulator, valves and pipelines. Two pressurizing modes are switched between by-motor and by-accumulator to adapt different pressure boost demands. A differentiator filtering raw sensor signal and calculating pedal speed is designed. By using the pedal feel simulator, the relationship between wheel pressures and brake force is decoupled. The relationships among pedal displacement, pedal force and wheel pressure are calibrated by experiments. A model-based PI controller with predictor is designed to lower the influences caused by delay. Moreover, a self-tuning regulator is introduced to deal with the parameter’s time-varying caused by temperature, brake pads wearing and delay variation. To verify the controller validity, a Rapid Control Prototype (RCP) test environment based on dSPACE is built. Self-designed HCU and pedal feel simulator are installed in test bench. The close loop test results of pressure tracking are plotted and analyzed by contrasting normal PI controller and proposed controller. The conclusion indicates that the proposed controller can reach a balance of rapidity and accuracy, meanwhile the operating time and energy consumption are also reduced.
Xiong, Zhe, Pei, Xiaofei, Guo, Xuexun, Zhang, Chengcai
Service Maintenance of SAE J1703 and J1704 Brake Fluids in Motor Vehicle Brake SystemsJ1707_201609 (Historical)9/13/2016
This SAE Recommended Practice provides basic recommendations for dispensing and handling of SAE J1703 and SAE J1704 Brake Fluids by Service Maintenance Personnel to assure their safe and effective performance when installed in or added to motor vehicle hydraulic brake actuating systems. This document is concerned only with brake fluid and those system parts in contact with it. It describes general maintenance procedures that constitute good practice and that should be employed to help assure a properly functioning brake system. Recommendations that promote safety are emphasized. Specific step-by-step service instructions for brake maintenance on individual makes or models are neither intended nor implied. For these, one should consult the vehicle manufacturer’s service brake maintenance procedures for the particular vehicle. Vehicle manufacturer’s recommendations should always be followed.
Brake Fluids Standards Committee
Test Procedures for Determining Air Brake Valve Input-Output CharacteristicsJ1859_201606 (Current)6/14/2016
This SAE Recommended Practice establishes uniform test procedures for determining input-output characteristics for those pilot-operated and mechanically actuated, modulating-type valves and through-type valves used in the service brake control system.
Truck and Bus Brake Supply and Control Components Committee
ASURT Formula Student Brake Design2014-01-24879/28/2014
The Braking System is the most crucial part of the racing vehicle. There is no doubt, that if only one minority failure in the braking system took place, this would be more than enough reason to cause the racing team disqualification from the competition. Time is the main and the most important criteria for any racing competition; on the other hand the formula student “FS UK SAE” competition care the most about developing the automotive engineering sense in the students by putting them under strict rules normally taken from the original version “formula 1” to encourage their creativity to reach the optimum performance under these strict rules. One of the most important rules is “No Braking by wire”, and the obvious consequences are more stopping distance and time. Braking distance is a critical facture in achieving racing success in a competitive domain. This report will cover using the bias bar, dynamic weight distribution “before and after braking” and carefully choosing the braking and suspension system components dimensions, in order to fulfill the main functions of “ABS and EBD” which are preventing the wheels from lock-up and preventing side skid of the vehicle during cornering in the different dynamic tests with full consideration of the maximum approachable deceleration of the vehicle without locking up without using any kind of electronic “actuators or control”. Mathematical model “Matlab” and Physical model “AME SIM” will be used to support the report's results.
Barakat, Mohamed Samy
Test Procedures for Non-SAE Hydraulic HosesJ2545_201406 (Historical)6/4/2014
This SAE Recommended Practice identifies test procedures and parameters which may be used to evaluate, qualify and inspect non-SAE hydraulic hoses or other hose constructions which do not conform to any established ISO or national standards defining hydraulic hoses. (Non-SAE hydraulic hoses are defined as those which do not conform to the categories listed in SAE J517.) It is not intended for evaluating fluoropolymer lined hose constructions or hose constructions with working pressures above 86 MPa.
Hydraulic Hose and Hose Fittings Committee
Hydraulic HoseJ517_201302 (Historical)2/4/2013
This SAE Standard provides general, dimensional and performance specifications for the most common hoses used in hydraulic systems on mobile and stationary equipment. The general specifications contained in Sections 1 through 12 are applicable to all hydraulic hoses and supplement the detailed specifications for the 100R-series hoses contained in the later sections of this document. (See Tables 1A and 1B). This document shall be utilized as a procurement document only to the extent as agreed upon by the manufacturer and user. The maximum working pressure of a hose assembly comprising SAE J517 hose and hose connectors per SAE J516, SAE J518, SAE J1453, etc., shall not exceed the lower of the respective SAE maximum working pressure values. When using SAE J517 hose for marine applications, see SAE J1475, SAE J1942 and SAE J1942-1. The SAE J517 100R9, 100R10 and 100R11 hoses are discontinued due to lack of demand. For DOD orders see Appendix C. The SAE J517 100R1A, 100R2A, 100R2B and 100R 2BT are discontinued due to lack of demand. For DOD orders replace 100R1A with 100R1AT, replace 100R2A, 100R2B and 100R2BT with 100R2AT. The SAE J517 100R1AT maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R1 as type S. The SAE J517 100R2AT maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R2 as type S. The SAE J517 100R16 maximum working pressures were replaced by the type S maximum working pressures beginning with the year 2009, eliminating the need to label 100R16 as type S.
Hydraulic Hose and Hose Fittings Committee
Automotive Hydraulic Brake System - Metric Tube ConnectionsJ1290_201207 (Current)7/5/2012
This SAE Standard documents dimensional metric specifications for hydraulic brake system tubing with flared ends, threaded ports, and male tube nuts for the interconnection of major components in automotive hydraulic brake systems. The purpose of this document is to recommend preferred metrically dimensioned components (including alternative choices), that are intended to be functionally compatible with International Organization for Standardization Specification, ISO 4038. Some applications may require sizes of forms other than those shown herein, and this document does not preclude such other details when they are required.
Automotive Brake and Steering Hose Standards Comm
Power Steering Pressure Hose - Wire BraidJ190_201207 (Current)7/5/2012
This specification covers hose fabricated from wire braid and synthetic rubber, assembled with end fittings for use in automotive applications up to 10.3 MPa (1500 psi) maximum pressure, as flexible connections within the temperature range of -40 °C to 121 °C (-40 °F to +250 °F) average, 13.5 °C (275 °F) maximum peaks. The specification in this SAE Standard originated in the SAE-ASTM Technical Committee on Automotive Rubber (other than tires). They represent the correlation of the best information available from research investigation and production experience on the minimum constructional and performance characteristics essential for new power steering assemblies used as original or replacement equipment. This standard applies to passenger cars. It may prove useful to truck manufacturers, but it is not to be presented as present practices. They also represent the minimum quality recognized by original equipment manufacturers and hose suppliers as essential for satisfactory and safe operation by the hose itself and other coacting parts of the power steering system. The original equipment manufacturer may, at his option, add or alter tests through OEM specifications.
Automotive Brake and Steering Hose Standards Comm
Hot Impulse Test for Hydraulic Brake Hose AssembliesJ1833_201207 (Historical)7/5/2012
This recommended practice describes the equipment, test procedure, and performance requirements for high temperature impulsing of automotive brake hose assemblies with hydraulic brake fluid.
Automotive Brake and Steering Hose Standards Comm
Packaging, Storage, and Shelf Life of Hydraulic Brake Hose AssembliesJ1288_201207 (Current)7/5/2012
This SAE Information Report is the listing of recommendations for the proper packaging, storage, and shelf life limitations of new and unused hydraulic brake hose assemblies. The document embodies the testing, analysis, and experience of many users and manufacturers. Where specific manufacturer's recommendations are made, those recommendations shall supersede the recommendations of this document. This document describes the successful procedures and practices associated with brake hose assemblies usage by a wide cross section of manufacturers and users over several years. The practices are expected to be applicable to all brake hose assemblies which qualify under SAE J1401.
Automotive Brake and Steering Hose Standards Comm
A Study on Prediction of the Brake Hoses Deformation Associated with a Vehicle Motion2012-01-02244/16/2012
A Brake hose is a core part of the braking system that delivers the hydraulic pressure generated in the master cylinder to an actuator, which, in turns, creates braking force. The braking hose can be deformed in many different ways under various driving conditions, and it is essential that the brake hose should not experience any excessive deformation or interference with surrounding parts for durability and reliability. Despite of its importance, the brake hose design method has been very limited. Currently, it is tentatively designed with simple curves, such as a spline curve, then tested and modified with many different prototypes by doing a trial-and-error process due to the difficulty in simulating the behavior of the hose. This paper focuses on establishing the following processes to enhance the reliability of the drawing in the earlier stage of the vehicle development by a prompt and accurate simulation prediction; (1) Facilitating the design and modification of the hose path by developing a CAD template for the brake hose and fitting, (2) Coordinates of Body Fitting & Axle Fitting are extracted and calculated in order to create input data for a CAE software to perform a deformation analysis of brake hoses associated with the vehicle motion. The obtained CAE results are then converted into a CAD 3D model and used to check the interference with surrounding parts. The whole process is dedicated to two main objectives; the usability and reliability. Firstly, a unified GUI is developed to handle a data extraction, pre/post processing, 3D model generation, and interference check. Therefore, it allows even inexperienced engineers to easily get the analysis results and use it in the CAD environment. Secondly, by incorporating the beam cross-section model into the analysis, twist of a hose can be considered. The results are compared with the 3D scanning data of the hose installed in the actual vehicle for verification. The proposed processes and program can significantly decrease the computing time and increase the accuracy of the simulation for the presented example problems.
Kang, Moon-Won
Moisture Transmission Test Procedure - Hydraulic Brake Hose AssembliesJ1873_201202 (Current)2/16/2012
This SAE Recommended Practice is intended for all vehicle hydraulic brake hoses. It is an accelerated test which is intended to provide the user with a method of comparing the ability of hydraulic brake hose designs to retard the ingress of moisture into brake fluid. This document specifies a laboratory performance requirement. ASTM D 1364 interlaboratory reproducibility and correlation of data have not been defined, nor has correlation been established between field vehicle brake fluid moisture content and data obtained by this document.
Automotive Brake and Steering Hose Standards Comm
Service Maintenance of SAE J1703 and J1704 Brake Fluids in Motor Vehicle Brake SystemsJ1707_201111 (Historical)11/21/2011
This SAE Recommended Practice provides basic recommendations for dispensing and handling of SAE J1703 and SAE J1704 Brake Fluids by Service Maintenance Personnel to assure their safe and effective performance when installed in or added to motor vehicle hydraulic brake actuating systems. This document is concerned only with brake fluid and those system parts in contact with it. It describes general maintenance procedures that constitute good practice and that should be employed to help assure a properly functioning brake system. Recommendations that promote safety are emphasized. Specific step-by-step service instructions for brake maintenance on individual makes or models are neither intended nor implied. For these, one should consult the vehicle manufacturer’s service brake maintenance procedures for the particular vehicle. Vehicle manufacturer’s recommendations should always be followed.
Brake Fluids Standards Committee
Test Procedures for Determining Air Brake Valve Input-Output CharacteristicsJ1859_201105 (Historical)5/16/2011
This SAE Recommended Practice establishes uniform test procedures for determining input-output characteristics for those pilot-operated and mechanically actuated, modulating-type valves and through-type valves used in the service brake control system.
Truck and Bus Brake Supply and Control Components Committee
Identification and Installation of Air Brake System ComponentsJ2580_201103 (Historical)3/16/2011
This Recommended Practice covers air braked trucks, truck-tractors, trailers and buses. It enumerates the identification and installation of the air brake components not covered in other SAE recommended practices and standards.
Truck and Bus Brake Systems Committee
Selection of EPDM Elastomer in Brake Hose Application for Improved Brake System Performance2010-01-188510/5/2010
Brake system has been considered as the most important safety system for a vehicle. Performance of the Brake system depends upon various factors like purity of brake fluid, material and construction of rubber hose, rubber seal performance etc. The purity of the brake fluid is one of the most vital factor and incompatibility of the rubber hose with brake fluid causes contamination of the brake fluid. This intern can cause shrinkage / swelling of master, slave cylinder rubber seals. The change in the dimensional of the rubber seals directly affects the performance of the brake system. In order to evaluate the performance of the brake system, Styrene Butadiene Rubber (SBR) and EPDM elastomers with different % of ethylene and varying ENB content were considered for brake fluid compatibility test. These rubber materials were tested in the different brands of DOT 3 brake fluid. Design of experiments has been carried out on EPDM material with different % of ethylene and varying ENB content to find out suitable and optimized combination of the rubber and brake fluid brands. The selected combination from the experiments has been taken further for component level tests. Traditionally, methods of test for the compatibility of brake fluid with rubber hose may not address the actual vehicle service conditions. To addresses the actual conditions; a new methodology has been developed. Hoses were successfully tested and their performance was compared in terms of volumetric expansion of rubber seal, brake fluid contamination, brake pedal sinking, and pedal efforts. This methodology can also be extended to detect contaminations in other types of fluids used in the automobile.
Sivakumar, Anandan, Sathaye, Asmita
Automotive Brake Hose Fluid Consumption Characteristics and Its Effects on Brake System Pedal Feel2010-01-00824/12/2010
During the automotive brake system design and development process, a large number of performance characteristics must be comprehended, assessed, and balanced against each other and, at times, competing performance objectives for the vehicle under development. One area in brake development that is critical to customer acceptance due to its impact on a vehicle's perceived quality is brake pedal feel. While a number of papers have focused on the specification, quantification and modeling of brake pedal feel and the various subsystem characteristics that affect it, few papers have focused specifically on brake corner hoses and their effect on pedal feel, in particular, during race-track conditions. Specifically, the effects of brake hose fluid consumption pedal travel and brake system response is not well comprehended during the brake development process. This paper introduces the basic construction of automotive brake hoses, the test methodologies and test results used to quantify brake hose fluid consumption under various operating conditions, and it illustrates the influence of hose performance at the vehicle-level using simple analyses on an example race track-capable sports car.
Antanaitis, David, Riefe, Mark, Sanford, Joel
Push-On Hose and Mating Hose FittingsJ2552_200903 (Historical)3/4/2009
This SAE standard provides limited, dimensional and general performance requirements for low pressure, field attachable, push-on hose and their mating hose fittings. The intended application is for fluid and pneumatic power used with petroleum base hydraulic fluids, lube oils, water glycols and air, within the temperature ranges listed in Table 1. The maximum working pressure is 1.7 MPa (see Table 2). For air applications the maximum working pressure is at 0.7 MPa. Hose and hose fittings are manufactured within certain dimensions with tolerance ranges in order to provide the proper gripping and sealing. SAE J2552 hose from one manufacturer may not be compatible with J2552 hose fittings supplied by another manufacturer. It is the responsibility of the fabricator to consult the manufacturers' written assembly instructions or the manufacturers directly before intermixing hose and hose fittings from two manufacturers. Always follow the manufacturers' instructions for proper preparation and fabrication of hose assemblies. Hose assemblies made to this standard shall not be used in dynamic motion, vibrating or impulsing applications, nor for brake hoses or fuel lines.
Hydraulic Hose and Hose Fittings Committee
Application of Hydraulic Brake Hose to Motor Vehicles--Wheel End and AxleJ1406_200710 (Historical)10/4/2007
This SAE Recommended Practice covers the application of hydraulic brake hose (as defined by current issue of SAE J1401) as used to provide a flexible hydraulic connection between wheel end or axle brake system components on motor vehicles. The purpose of this document is to outline design, operating, and service factors in routing a hydraulic brake hose assembly to a vehicle. It is intended to serve as a recommended practice for original equipment manufacturers. Vehicle design circumstances may exist that prevent strict adherence to this document. Any deviations should have the concurrence of all engineering functions involved.
Automotive Brake and Steering Hose Standards Comm
Automotive Air Brake Hose and Hose AssembliesJ1402_200608 (Historical)8/2/2006
This recommended practice covers minimum requirements for air brake hose assemblies made from reinforced elastomeric hose and suitable fittings for use in automotive air brake systems including flexible connections from frame to axle, tractor to trailer, trailer to trailer and other unshielded air lines with air pressures up to 1 MPa, that are exposed to potential pull or impact. This hose is not to be used where temperatures, external or internal, fall outside the range of -40 °C to +100 °C.
Hydraulic Hose and Hose Fittings Committee
Packaging, Storage, and Shelf Life of Hydraulic Brake Hose AssembliesJ1288_200510 (Historical)10/18/2005
This SAE Information Report is the listing of recommendations for the proper packaging, storage, and shelf life limitations of new and unused hydraulic brake hose assemblies. The document embodies the testing, analysis, and experience of many users and manufacturers. Where specific manufacturer's recommendations are made, those recommendations shall supersede the recommendations of this document. This document describes the successful procedures and practices associated with brake hose assemblies usage by a wide cross section of manufacturers and users over several years. The practices are expected to be applicable to all brake hose assemblies which qualify under SAE J1401.
Automotive Brake and Steering Hose Standards Comm
Automotive Air Brake Hose and Hose AssembliesJ1402_200501 (Historical)1/26/2005
This recommended practice covers minimum requirements for air brake hose assemblies made from reinforced elastomeric hose and suitable fittings for use in automotive air brake systems including flexible connections from frame to axle, tractor to trailer, trailer to trailer and other unshielded air lines that are exposed to potential pull or impact. This hose is not to be used where temperatures, external or internal, fall outside the range of -40 to +200 °F (-40 to +93 °C).
Hydraulic Hose and Hose Fittings Committee
Moisture Transmission Test Procedure--Hydraulic Brake Hose AssembliesJ1873_200307 (Historical)7/30/2003
This SAE Recommended Practice is intended for all vehicle hydraulic brake hoses. It is an accelerated test which is intended to provide the user with a method of comparing the ability of hydraulic brake hose designs to retard the ingress of moisture into brake fluid. This document specifies a laboratory performance requirement. ASTM D 1364 Interlaboratory reproducibility and correlation of data have not been defined, nor has correlation been established between field vehicle brake fluid moisture content and data obtained by this document.
Automotive Brake and Steering Hose Standards Comm
Road Vehicle--Hydraulic Brake Hose Assemblies for Use With Nonpetroleum-Base Hydraulic FluidsJ1401_200306 (Historical)6/10/2003
This SAE Standard specifies the performance tests and requirements for hydraulic brake hose assemblies used in the hydraulic braking system of a road vehicle. It also specifies the methods used for identification of the hose manufacturer. This document applies to brake hose assemblies made of a hose fabricated from yarn and natural or synthetic elastomers and assembled with metal end fittings for use with nonpetroleum-base brake fluids as specified in SAE J1703 and SAE J1705. The nominal internal diameter of the brake hose shall fall within one of the following values: 3.5 mm or less (1/8 in or less) 4 to 5 mm (3/16 in)
Automotive Brake and Steering Hose Standards Comm
Application of Hydraulic Brake Hose to Motor VehiclesJ1406_200204 (Historical)4/9/2002
This SAE Recommended Practice covers the application of hydraulic brake hose (as defined by current issue of SAE J1401) as used to provide a flexible hydraulic connection between brake system components on motor vehicles. The purpose of this document is to outline design, operating, and service factors in routing a hydraulic brake hose assembly to a vehicle. It is intended to serve as a recommended practice for original equipment manufacturers. Vehicle design circumstances may exist that prevent strict adherence to this document. Any deviations should have the concurrence of all engineering functions involved.
Automotive Brake and Steering Hose Standards Comm
Moisture Transmission Test Procedure--Hydraulic Brake Hose AssembliesJ1873_200010 (Historical)10/1/2000
This SAE Recommended Practice is intended for all vehicle hydraulic brake hoses. It is an accelerated test which is intended to provide the user with a method of comparing the ability of hydraulic brake hose designs to retard the ingress of moisture into brake fluid. This document specifies a laboratory performance requirement. ASTM D 1364 Interlaboratory reproducibility and correlation of data have not been defined, nor has correlation been established between field vehicle brake fluid moisture content and data obtained by this document.
Automotive Brake and Steering Hose Standards Comm
Road Vehicle--Hydraulic Brake Hose Assemblies for Use With Nonpetroleum-Base Hydraulic FluidsJ1401_199909 (Historical)9/9/1999
This SAE Standard specifies the performance tests and requirements for hydraulic brake hose assemblies used in the hydraulic braking system of a road vehicle. It also specifies the methods used for identification of the hose manufacturer. This document applies to brake hose assemblies made of a hose fabricated from yarn and natural or synthetic elastomers and assembled with metal end fittings for use with nonpetroleum-base brake fluids as specified in SAE J1703 and SAE J1705. The nominal internal diameter of the brake hose shall fall within one of the following values: a. 3.5 mm or less (1/8 in or less) b. 4 to 5 mm (3/16 in)
Automotive Brake and Steering Hose Standards Comm
Packaging, Storage, and Shelf Life cf Hydraulic Brake Hose AssembliesJ1288_199904 (Historical)4/1/1999
This SAE Information Report is the listing of recommendations for the proper packaging, storage, and shelf life limitations of new and unused hydraulic brake hose assemblies. The document embodies the testing, analysis, and experience of many users and manufacturers. Where specific manufacturer's recommendations are made, those recommendations shall supersede the recommendations of this document. This document describes the successful procedures and practices associated with brake hose assemblies usage by a wide cross section of manufacturers and users over several years. The practices are expected to be applicable to all brake hose assemblies which qualify under SAE J1401.
Automotive Brake and Steering Hose Standards Comm
The Development of a Temperature Alarm Device for Failure Prevention of the Automobile Hydraulic Brake System1999-01-04743/1/1999
The pursuit of safer and more reliable car is the trend of modern automobile engineering. The major protection against an automobile accident is the brake system. However, to date, there is no safety device, which is designed to prevent failure from high temperature of the hydraulic brake system. In general, the brake force is generated from the friction between brake shoes and brake drums or disks. As the vehicle slows down, the moment of inertia of the vehicle is transformed into heat to raise the temperature of the brake system. The rapid rising of temperature may result in serious safety concerns of the brake system and its failure could be expected. The main purpose of this research is to develop a device, which can detect high temperature in the hydraulic brake system and provide a safety alarm before it fails. The device utilizes temperature sensors to monitor temperatures of the brake shoe lining and hydraulic fluid of the brake wheel cylinders. Both of the current temperatures are checked with alarm control parameters. When either one of the temperatures exceed the preset value, the control unit will send an alarm signal to warn the driver who should then take precaution and/or prevention actions
Lee, Shuo-Jen, Lin, Ke-Feng, Tai, Chi-Fu, Wu, Shih-Hsiung, Gau, Chung-Yun
Road Vehicle-Hydraulic Brake Hose Assemblies for Use With Nonpetroleum-Base Hydraulic FluidsJ1401_199406 (Historical)6/1/1994
This SAE Standard specifies the performance tests and requirements for hydraulic brake hose assemblies used in the hydraulic braking system of a road vehicle. It also specifies the methods used for identification of the hose manufacturer. This document applies to brake hose assemblies made of a hose fabricated from yarn and natural or synthetic elastomers and assembled with metal end fittings for use with nonpetroleum-base brake fluids as specified in SAE J1703 and SAE J1705. The nominal internal diameter of the brake hose shall be one of the following values: a. 3.2 mm (1/8 in) or, b. 4.8 mm (3/16 in).
Automotive Brake and Steering Hose Standards Comm
Automotive Tube FittingsJ512_199306 (Historical)6/1/1993
This SAE Standard covers complete general and dimensional specifications for the various types of tube fittings intended for general application in the automotive, appliance, and allied fields. See SAE J1131 for the performance requirements of reusable (push to connect) fittings intended for use in automotive air brake systems.
Air Brake Tubing and Tube Ftg Committee
Mathematical Model for Brake Hose Layout9221239/1/1992
A mathematical model to estimate the shape of a brake hose has been developed. A few papers applying Finite Element Methods (FEM) to this problem have been reported. However, the solutions require a large amounts of computational time even if a super computer is used. A brake hose is made of a flexible material such as rubber, and exhibits large scale deformation when it is mounted on a chassis. Element node displacements are chosen as the independent variables for FEM, so the method becomes a successive iteration of hose shape modifications based on displacements of the nodes. The developed model is approached from the standpoint of mechanical dynamics. A brake hose is divided into small beam elements and particles. The particles are driven by element forces and move around in three-dimensional space. Choosing the coordinates and orientations of the particles as the independent variables, the shape of the brake hose can be determined directly by solving the equations of static equilibrium resulting from the element forces exerted on the particles. Element forces can be derived by simple beam theory if the elements are divided small enough to be approximated as linear elastic beams. This is because element deformation is small relative to particle displacement. The orientation of the particles can be represented by Euler Parameter notation. This notation makes the model simple and reliable, and contributes to a rapid computation. The Newton-Raphson method is incorporated for solution of the governing equations. Numerical results closely agree with the experimental data.
Sugiyama, Shigeru, Otaki, Takashi
Road Vehicle--Hydraulic Brake Hose Assemblies for Use With Nonpetroleum-Base Hydraulic FluidsJ1401_199006 (Historical)6/1/1990
This SAE Standard specifies the performance tests and requirements for hydraulic brake hose assemblies used in the hydraulic braking system of a road vehicle. It also specifies the methods used for identification of the hose manufacturer. This document applies to brake hose assemblies made of a hose fabricated from yarn and natural or synthetic elastomers and assembled with metal end fittings for use with nonpetroleum-base brake fluids as specified in SAE J1703 and SAE J1705. The nominal internal diameter of the brake hose shall fall within one of the following values: 3.5 mm or less (1/8 in or less) 4 to 5 mm (3/16 in)
Automotive Brake and Steering Hose Standards Comm
Vacuum Brake HoseJ1403_198907 (Historical)7/1/1989
The vacuum brake hose is intended for use in the power braking systems of vehicles or as connections on transmission lines in combinations of vehicles or systems thereof. For the purposes of clearly identifying hose classification and for specification simplification, vacuum brake hose is divided into two types: heavy-wall Type H, and light-wall Type L.
Automotive Brake and Steering Hose Standards Comm
Application of Hydraulic Brake Hose to Motor Vehicles - Wheel End and AxleJ1406_198905 (Historical)5/1/1989
This SAE Recommended Practice covers the application of hydraulic brake hose (as defined by current issue of SAE J1401) as used to provide a flexible hydraulic connection between wheel end or axle brake system components on motor vehicles. The purpose of this document is to outline design, operating, and service factors in routing a hydraulic brake hose assembly to a vehicle. It is intended to serve as a recommended practice for original equipment manufacturers. Vehicle design circumstances may exist that prevent strict adherence to this document. Any deviations should have the concurrence of all engineering functions involved.
Automotive Brake and Steering Hose Standards Comm
Hot Impulse Test for Hydraulic Brake Hose AssembliesJ1833_198811 (Historical)11/1/1988
This SAE Recommended Practice presents an accelerated test to verify the structural integrity of hydraulic brake hose and the hose-to-fitting seal. It is intended to simulate the effects of environmental aging and braking pressurization on brake hose assemblies. The test is a guide to assist hose designers and/or users in determining brake hose assembly performance characteristics under conditions of heat and pressure.
Automotive Brake and Steering Hose Standards Comm
Dynamic Ozone Test Procedure--Hydraulic Brake HoseJ1914_198803 (Current)6/1/1988
The purpose of this recommended practice is to evaluate in the laboratory the effect of flexing on a brake hose when exposed to a high ozone concentration environment. This recommended practice is intended for all vehicle hydraulic brake hoses. It is an accelerated test which subjects the hose to dynamic ozone exposure.
Automotive Brake and Steering Hose Standards Comm
Moisture Transmission Test Procedure--Hydraulic Brake Hose AssembliesJ1873_198803 (Historical)3/1/1988
This SAE Recommended Practice is intended for all vehicle hydraulic brake hoses. It is an accelerated test which is intended to provide the user with a method of comparing the ability of hydraulic brake hose designs to retard the ingress of moisture into brake fluid. This document specifies a laboratory performance requirement. ASTM D 1364 interlaboratory reproducibility and correlation of data have not been defined, nor has correlation been established between field vehicle brake fluid moisture content and data obtained by this document.
Automotive Brake and Steering Hose Standards Comm
Vehicle Design and Accident Severity85224811/11/1985
The Victorian Road Traffic Authority has 4 recently commenced detailed investigation of the behaviour of the motor vehicle in accidents. There is insufficient information on the behaviour of the vehicle in both accident causation and more particularly, in injury causation as a result of road accidents. This information can only be obtained from the investigation of actual accidents. The investigations make no attempt to attribute blame for the accidents. Particular case studies covering a range of vehicle types are examined. It is shown that reduction in accident severity and injury causing potential are possible at very little cost by considering how the vehicle or its components may behave in an accident.
Smith, W. R.
Road Vehicle--Hydraulic Brake Hose Assemblies for Use With Nonpetroleum-Base Hydraulic FluidsJ1401_198506 (Historical)6/1/1985
This SAE Standard specifies the performance tests and requirements for hydraulic brake hose assemblies used in the hydraulic braking system of a road vehicle. It also specifies the methods used for identification of the hose manufacturer. This document applies to brake hose assemblies made of a hose fabricated from yarn and natural or synthetic elastomers and assembled with metal end fittings for use with nonpetroleum-base brake fluids as specified in SAE J1703 and SAE J1705. The nominal internal diameter of the brake hose shall fall within one of the following values: 3.5 mm or less (1/8 in or less) 4 to 5 mm (3/16 in)
Automotive Brake and Steering Hose Standards Comm
Vacuum Brake HoseJ1403_198506 (Historical)6/1/1985
The vacuum brake hose is intended for use in the power braking systems of vehicles or as connections on transmission lines in combinations of vehicles or systems thereof. For the purposes of clearly identifying hose classification and for specification simplification, vacuum brake hose is divided into two types: heavy-wall Type H, and light-wall Type L.
Automotive Brake and Steering Hose Standards Comm
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