Browse Topic: Construction vehicles and equipment

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Lifting Crane Sheave and Drum SizesJ881_202110 (Current)10/21/2021
This SAE Standard covers minimum dimensional relationship for sheaves, drums, and wire rope for mobile, construction type lift cranes.
Cranes and Lifting Devices Committee
Measurement of Exterior Sound Level of Specialized Aircraft Ground Support EquipmentARP1801A (Current)9/30/2021
The scope of this SAE Recommended Practice covers specialized internal combustion engine powered equipment used in support of aircraft operations. The equipment may be self-propelled, truck mounted, trailer mounted, skid mounted or stationary. It does not include construction equipment or equipment designed primarily for operation on highways or within factories or building areas. NOTE: Equivalent methodology is provided in (CEN) EN 1915-4, Aircraft ground support equipment - General requirements - Part 4: Noise measurement methods and reduction, to be used for measurements conforming to the EU Machinery Directive
AGE-3 Aircraft Ground Support Equipment Committee
Crane Boom Hoist Disengaging DeviceJ999_202109 (Current)9/20/2021
This SAE Standard applies to cranes which are equipped to adjust the boom angle by hoisting and lowering means through rope reeving.
Cranes and Lifting Devices Committee
Performance Test for Windshield Defrosting Systems for Off-Road, Self-Propelled Work MachinesJ1535_202108 (Historical)8/2/2021
This SAE Standard establishes uniform test procedures for the defrosting systems of off-road, self-propelled work machines used in construction, general purpose industrial, agricultural, and forestry machinery as referenced in table one of this document. It includes tests that can be conducted with uniform test equipment in commercially available laboratory facilities, as well as in an appropriate outdoor environment.
HFTC6, Operator Accommodation
Application Layer - Generator Sets and IndustrialJ1939/75_202107 (Historical)7/15/2021
SAE J1939-75 defines the set of data parameters (SPs) and messages (PGs) for information predominantly associated with monitoring and control generators and driven equipment in electric power generation and industrial applications. The data parameters (SPs) and messages (PGs) previously published within this document are published in SAE J1939DA. Applications using the SAE J1939-75 document must refer to SAE J1939DA for the SAE J1939 parameters and messages for monitoring and controlling the power units, e.g., engines and turbines, that power the generators and driven industrial equipment.
Truck Bus Control and Communications Network Committee
Aircraft Flotation AnalysisAIR1780A (Current)4/23/2021
This document is divided into five parts. The first part deals with flotation analysis features and definitions to acquaint the engineer with elements common to the various methods and the meanings of the terms used. The second part identifies and describes the various methods used. To accomplish the minimum intent of this document, techniques could be limited to those needed for flotation analysis only; however, because of the close relation between flotation analysis and runway design, methods for the latter are also included. In fact, runway design criteria are used for flotation and evaluation in some cases, and are periodically the governing procedure in specific, if isolated, instances. From time to time, it may be necessary to deal with runways built to obsolete criteria. Therefore, a listing of most of these constitutes the third part. The fourth part of this document tabulates the recommended documents, categorizing them for commercial and civil versus military usage, by military service to be satisfied, and by type of pavement. The document concludes with brief elaborations of some concepts for broadening the analyst’s understanding of the subject.
A-5 Aerospace Landing Gear Systems Committee
Operator's Seat Dimensions for Off-Road Self-Propelled Work MachinesJ899_202102 (Historical)2/23/2021
For off-road work machines listed in SAE J1116.
HFTC4, Operator Seating and Ride
Improvement of Tightening Reliability of Bolted Joints Using Elliptical Confidence Limit in Calibrated Wrench Method2020-01-02184/14/2020
The calibrated wrench method is used in the tightening of bolts in manufacturing industries in the case of a large amount of tightening work. It is important to apply a large initial clamping force to ensure tightening reliability and prevent self-loosening, fatigue breakage, and so forth. In this method, the clamping force of bolted joints is controlled using a torque wrench. However, since the clamping force is indirectly applied by a wrench, it varies greatly in the case of a large amount of tightening in a factory. Therefore, the calibrated wrench method is not so accurate from the viewpoint of clamping force control. It is conventionally thought that the distribution of the clamping force has the shape of a rhombus. When tightening torque and clamping force are considered to be two independent random variables, the clamping force is distributed within an elliptical confidence limit. Here, we show that the distribution of equivalent stress also has an elliptical confidence limit. Considering the permitted limit for working load stress on a bolted joint, the elliptical distribution has a larger margin to the yield point than the conventional rhombic distribution. Using this feature, we can set a higher target tightening torque than before. We show that a higher tightening torque and initial clamping force can be obtained with smaller variation than before. Finally, we establish a method for maintaining the tightening reliability that involves applying a large clamping force by increasing the target tightening torque using the elliptical confidence limit.
Hareyama, Soichi, Manabe, Ken-ichi, Kobayashi, Satoshi
Nomenclature - Hydraulic BackhoesJ326_202003 (Current)3/4/2020
This SAE standard includes hydraulic backhoes which have no more than 190 degrees of rotational swing and are mounted on wheeled tractors and crawler tractors. Illustrations used are not intended to include all existing commercial machines or to be exact descriptions of any particular machine. The illustrations have been chosen to describe the principles to be used in applying this standard.
MTC1, Earthmoving Machinery
Specification Definitions - Hydraulic BackhoesJ49_202003 (Current)3/4/2020
This standard applies to hydraulic backhoes which have no more than 190 degrees of rotational swing and are mounted on wheeled tractors and crawler tractors.
MTC1, Earthmoving Machinery
Vehicle Application LayerJ1939/71_202002 (Historical)2/11/2020
The SAE J1939 communications network is developed for use in heavy-duty environments and suitable for horizontally integrated vehicle industries. The SAE J1939 communications network is applicable for light-duty, medium-duty, and heavy- duty vehicles used on-road or off-road, and for appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of interest include, but are not limited to, on-highway and off-highway trucks and their trailers, construction equipment, and agricultural equipment and implements. SAE J1939-71 is the SAE J1939 reference document for the conventions and notations that specify parameter placement in PGN data fields, the conventions for ASCII parameters, and conventions for PGN transmission rates. This document previously contained the majority of the SAE J1939 data parameters and messages for information exchange between the ECU applications connected to the SAE J1939 communications network. It also contained reference figures and reference information. The data parameters (SPNs), messages (PGNs), reference figures, and information previously published within this document are now published in SAE J1939DA. There are several SAE J1939-7X documents that collectively define all of the SAE J1939 application layer data parameters and messages. Diagnostic services and some industry-specific data parameters and messages are documented within other SAE J1939-7X application layer documents. An ECU may simultaneously use and support data parameters and messages from multiple SAE J1939-7X application layer documents.
Truck Bus Control and Communications Network Committee
Volvo CE showcases 100-ton EC950F excavator, new hybrid assist that cuts fuel use by 15%20TOFHP02_132/1/2020
The entrance to Volvo Construction Equipment's ConExpo-Con/Agg exhibit (F3432), through what the company has dubbed “excavator alley,” will lead to the manufacturer's largest excavator offered in North America: the 100-ton (90-tonne) EC950F crawler excavator. The reason Volvo CE is emphasizing its excavator lineup is simple, according to Ray Gallant, VP of sales support: more than half of the units sold in construction equipment are excavators. “We see a continuing good market in the next couple of years in North America,” said Gallant, during a pre-ConExpo press event in mid-January. “Traditionally, we've been strong in the small construction, compact equipment and road sectors; this [excavator] takes us into the light mining as well and expands our footprint in that part of the construction-equipment arena.”
Gehm, Ryan
EDITORIAL: ConExpo: Go big or go home20TOFHP02_062/1/2020
My inbox has been inundated with notifications of exciting new construction equipment, power systems, and other advanced technologies to be revealed at the rapidly approaching ConExpo/Con-Agg and IFPE shows in March. For example, as I write this in mid-January, Kubota teases that it is entering a new product segment and will unveil new equipment at the Las Vegas event. And the onslaught will only intensify in the coming weeks. Not that I'm complaining. North America's largest construction trade-show comes around just every three years, so the excitement surrounding it is warranted and the number of new-product launches justified-it's a big event.
Gehm, Ryan
AUTONOMOUS construction sites20TOFHP02_022/1/2020
Equipment makers are testing the emerging technologies required to advance automation beyond individual machines. In the construction world, some companies are not just looking to electrify and automate individual machines-they have their sights set on something much grander: the entire jobsite. And Doosan Infracore expects to do so in the next five years. In addition to debuting new Doosan models at the ConExpo-Con/Agg 2020 trade show in March, such as the DA45-5 articulated dump truck, the DL580-5 wheel loader and the DX800LC-5 crawler excavator-the largest Doosan machine yet-the company (booth N10001) also will showcase Concept-X, an autonomous worksite in development at its Boryeong Proving Grounds in South Korea.
Gehm, Ryan
Latticed Crane Boom Systems - Analytical ProcedureJ1093_202001 (Current)1/15/2020
This SAE information report applies to wire rope supported, latticed crane boom systems mounted on mobile construction type cranes for lift crane service.
Cranes and Lifting Devices Committee
A Recommended Method of Analytically Determining the Competence of Hydraulic Telescopic Cantilevered Crane BoomsJ1078_202001 (Historical)1/15/2020
This analysis applies to crane types as covered by ASME B30.5.
Cranes and Lifting Devices Committee
Prediction of Friction Durability in Off-Road Applications Based on Mechanistic Understanding of the Effects of Fluids and Surfaces on Clutch Friction2019-01-233912/19/2019
After new transmission lubricants are developed there is an extensive validation program where friction durability testing is performed on multiple clutch materials. Each durability test can run for long terms and the entire validation program can take much longer terms. A well designed lubricant and friction material will deliver the necessary friction control for construction equipment to operate at optimum level. A mechanistic construct has been evaluated to calculate friction durability in clutch systems based on fluid and surface tribological properties. Fluid properties include both boundary frictional and rheological effects. Surface properties include elastic modulus, surface roughness, asperity density and asperity tip radius. Using this mechanistic construct friction durability has been predicted. In the past, researchers in the field have often associated lubricant induced glazing of the friction material surface as the cause of the loss of friction control in clutch systems. In the current study, results show that wear is also a dominant cause of friction loss. In short clutch friction tests the rate of change in surface properties and fluid properties have been determined. Fluid friction properties do not change in these tests and surface properties of materials can change significantly. Based on the rate of change in surface properties, friction durability predictions have been made in order to shorten product validation time.
Devlin, Mark, Adhvaryu, Atanu, Cameron, Timothy, Kariwa, Shinpei, Abekawa, Toshiharu
Hydraulic Directional Control Valves, 3000 psi MaximumJ748_201912 (Current)12/4/2019
This SAE Recommended Practice has been set up by Subcommittee 4 of the Off-Road Machinery Technical Committee and is primarily for directional control valves on construction and industrial machinery equipment as referenced in SAE J1116. The purpose is to establish port area to flow relationship and match valve spool eye ends in relation to rated capacity. Port connections are optional for either the 4-bolt split flange connection or the internal straight thread "O" ring connection.
CTTC C1, Hydraulic Systems
Akasol packs industry-leading energy density into new battery design19TOFHP12_0812/1/2019
Projecting the market for full-electric and hybrid-electric commercial vehicles will continue to expand, Germany-based lithium-ion battery specialist Akasol recently announced production-readiness of a newly-developed battery pack that sets an energy-density benchmark. The company's president also confirmed Akasol will build a manufacturing facility in the Detroit area targeted to begin production in mid-2020. Akasol has a 30-year history of producing battery systems for buses and other commercial vehicles, as well as railway and marine applications. President Roy Schulde says the new American plant is being constructed primarily to build battery packs for buses constructed by European-brand customers doing business in the U.S. The company already claims Europe's largest commercial-vehicle lithium-ion battery production facility.
Visnic, Bill
Tire Size Differential - Articulated Wheel LoaderJ2204_201911 (Current)11/20/2019
This SAE Standard applies to the usage of tires of the same nominal size and tread type, but with different outside diameter for articulated front-end loaders. Articulated four-wheel-drive front-end loader performance and component life can be affected by excessive differences in the tire outside circumference and/or diameter. The purpose is to provide specific guidelines for the usage of tires with different outside circumference and/or diameter on articulated front-end loaders.
MTC8, Tire and Rim
Off-Road Tire and Rim Selection and ApplicationJ1315_201911 (Current)11/20/2019
This SAE Standard provides general guidelines for the proper selection and application of off-road tires and rims, as defined in SAE J751 and applied to earthmoving machines described in SAE J1116 and ISO 6165.
MTC8, Tire and Rim
Lattice Boom Cranes - Method of TestJ987_201911 (Current)11/13/2019
This SAE Standard applies to mobile construction-type lifting cranes utilizing pendant-supported, conventional, and luffing jib type lattice boom crane structures.
Cranes and Lifting Devices Committee
Design, Synthesis and Analysis of Loader Bucket, Boom and Linkages for Amphibious Infantry Combat Vehicle2019-28-012410/11/2019
Currently, for various military activities such as construction of bridges, digging trenches, construction of roads and clearing the area during landslides, separate unit of bulldozer for dozing operation and loader for loading operation is required. But the need is to develop a single unit which could perform both of these operations efficiently and simultaneously. The paper discusses about the development of dozer bucket mechanism as a single unit to perform dozing and loading operation and connected to the amphibious infantry combat vehicle. To develop the dozer bucket mechanism synthesis of mechanism (Linkages and Boom) has carried out and care has taken to fulfill the above stated functional requirement and satisfy the geometrical constraints. The synthesis of mechanism is done with the help of ‘CATIA’ software packages. The force calculation on various joints at the different position of mechanism has evaluated with the help of ’ADAMS’ software. The finite element analysis has done using software ’ANSYS’. The developed mechanism combines the dozing and loading operation and connected to the tracked vehicle.
Garud, Vikrant, Kulkarni, Akhilesh, Kulkarni, Abhijit, Wankhede, Sagar
Q&A19TOFHP10_1310/1/2019
CNH Industrial is separating its On-Highway (commercial vehicles and powertrain) and Off-Highway (agriculture, construction and specialty vehicles) segments into two listed entities, as part of its new five-year 2020-2024 business plan, “Transform 2 Win.” CEO Hubertus M. Mühlhäuser and other CNH executive leaders made the announcement Sept. 3 at its Capital Markets Day event at the New York Stock Exchange (NYSE). The spin-off of its On-Highway assets-Iveco, Iveco Bus and Heuliez Bus commercial-vehicle brands and the FPT Industrial powertrain business-is expected to be completed in early 2021. According to Mühlhäuser, the move results from an extensive portfolio review that revealed the two businesses have diverging regulatory and customer requirements and are impacted differently by four accelerating industry megatrends: digitalization, automation, alternative propulsion and servitization.
Gehm, Ryan
Three-Point Hitch (Type A) Backhoe Personnel ProtectionJ1518_201908 (Current)8/28/2019
This SAE Recommended Practice applies to three-point hitch (Type A) backhoes as defined in SAE J326 when mounted on either an agricultural tractor as defined in ANSI/ASAE S390 or other off-road self-propelled work machine as defined in SAE J1116. This criterion is intended for the manufacturer of the backhoe, whether or not the backhoe is manufactured or marketed by the same company that manufactures or markets the propelling machine.
OPTC1, Personnel Protection (General)
Application of Optimal Control Method to Path Tracking Problem of Vehicle10-03-03-00148/26/2019
Path tracking is an essential stage for vehicle safety control. It is more newsworthy than ever in the automotive context and especially for autonomous vehicle. The study proposes an optimal control method for path tracking problem in inverse vehicle handling dynamics. The proposed method generates an expected trajectory which guarantees minimum clearance to the prescribed path by identifying the optimal steering torque input. Based on this purpose, the path tracking problem, which is treated as an optimal control problem, is then solved by local collocation method and mesh refinement. Finally, a real vehicle test is executed to verify the rationality of the proposed model and methodology. The results show that using control variables as a mesh refinement function can capture the dramatic changes in state variables, and the efficiency improvement is more significant as the number of the grid points increases. The study can help drivers easily identify safe lane-keeping trajectories and area.
Liu, Yingjie, Cui, Dawei
Trucks with INTUITION19TOFHP08_048/1/2019
Perceptive Automata partners with Volvo Trucks to demonstrate AI technology that can determine when pedestrians will cross the road. The automotive and commercial vehicle industries are working on answers to a tremendous number of questions no one bothered to ask before. Volvo, for example, wants to know if vehicles can have human intuition. It's not as absurd a concept as it might seem, if you limit the definition of intuition to the specific question of whether a pedestrian is about to cross the street in front of an autonomous vehicle (AV). A new project by Volvo Trucks and Perceptive Automata, an artificial intelligence (AI) start-up based in Boston and Silicon Valley, is using the fact that people don't really hide this information, to build better AVs. The challenge is getting machines to recognize the all-too-human clues.
Blanco, Sebastian
Steering for Off-Road, Rubber-Tired MachinesJ1511_201907 (Current)7/29/2019
This SAE Standard applies to off-road rubber-tired machines having rated speed capability exceeding 20 km/h. Only the following machine categories in SAE J1116 are included in the scope of this document. a. Earthmoving b. Other than earthmoving: except rollers and compactors c. General purpose industrial d. Forestry e. Specialized mining machinery Applicable steering systems include the following means of providing power for steering: a. Manual steering b. Power-assisted steering c. Full-power steering This document does not imply that secondary steering is mandatory. However, if secondary steering is provided, performance and test requirements are included.
OPTC1, Personnel Protection (General)
Personnel Protection - Skid Steer LoadersJ1388_201907 (Current)7/3/2019
This SAE Standard is intended to provide personnel protection guidelines for skid steer loaders. This document is intended as a guide towards standard practice, but may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering its use. This document provides performance criteria for newly manufactured loaders and it is not intended for in-service machines.
OPTC1, Personnel Protection (General)
Message Sets for Advanced Traveler Information System (ATIS)J2354_201906 (Current)6/11/2019
This SAE Standard describes standardized medium-independent messages needed by information service providers for Advanced Traveler Information Systems (ATIS). The messages contained herein address all stages of travel (informational, pre-trip and en route), all types of travelers (drivers, passengers, personal devices, computers, other servers), all categories of information, and all platforms for delivery of information (in-vehicle, portable devices, kiosks, etc.).
V2X Core Technical Committee
Hydraulic Excavator Operator ControlsJ1177_201906 (Current)6/6/2019
This standard covers mobile hydraulic excavator controls and the specific arrangement and direction of motion for the primary controls. This standard applies to mobile hydraulic excavators as described in ISO 7135—Earthmoving machinery—Hydraulic excavators—Terminology and commercial specifications, and ISO 6165—Earthmoving machinery—Basic types—Vocabulary.
MTC1, Earthmoving Machinery
Q&A19TOFHP06_156/1/2019
For years Volvo Construction Equipment has operated wheel loaders via remote control in underground mining operations, first for very dedicated tasks and more recently increasing the flexibility and scope of their operation. A recent test program with mining company Boliden examined both standard WiFi and a 4G+ communication system built with the help of Ericsson, on a machine located more than 400 m (1,300 ft) below ground. Though the program was deemed a great success by both companies and considered an important step on the pathway to truly autonomous machines, they agreed that a more robust communication system was necessary. Hello 5G. Volvo CE is now trialing 5G mobile connectivity in a two-year partner program by Telia and Ericsson, this time employing a remote-controlled wheel loader, the L180H, in a 25-hectare constructionsite setting in Eskilstuna, Sweden. Calle Skillsäter, Volvo CE's technical specialist for connected machines, offers some insights on the technology, this latest trial program and where it can go from here, in this edited exchange provided by the company.
Gehm, Ryan
Bullish on biomethane19TOFHP06_016/1/2019
The CEO of CNH Industrial says biomethane is cleaner path than electric, as Case demos the alt fuel in cool wheel-loader concept. Hybrid and electric powertrains were omnipresent at bauma 2019 in Munich, with several OEMs and engine manufacturers showcasing electrified machines in near-production form. But CNH Industrial bucked that trend, touting the many benefits of biomethane instead. “Everybody talks about electrification; however, we believe that on the on-highway side as well as in off-highway there is a ‘bridging technology’ that is here to stay-LNG and CNG (liquefied and compressed natural gas),” said Hubertus M. Mühlhäuser, CEO of CNH Industrial, which includes brands Case, New Holland, Iveco and FPT Industrial, among others.
Gehm, Ryan
Personnel Protection for General Purpose Industrial MachinesJ98_201904 (Current)4/11/2019
OPTC1, Personnel Protection (General)
Going DIGITAL & ELECTRIC @ bauma 201919TOFHP04_054/1/2019
Digitalization and electrification are dominant themes in the equipment and technology being revealed at this year's largest trade show for construction and mining. Digitalization, efficiency and sustainability are three megatrends that off-highway OEMs and suppliers will be touting this month at the triennial bauma trade fair in Munich, when they reveal their technology-laden machines and the intelligent systems that help make them smarter, cleaner and safer. Particular focal areas for many of these companies include electric mobility, telematics and networked construction sites, and increasingly autonomous operation. Some construction machines are already equipped with a range of sensors and communication interfaces that provide comprehensive data on aspects like job performance, location and fuel consumption. While entire fleets can be managed by telematics, many companies struggle with how to implement digital technologies and services.
Gehm, Ryan
Braking Performance - Rubber-Tired, Self-Propelled CranesJ1977_201902 (Current)2/27/2019
This SAE Standard applies to machines as defined in Appendix A. Some of these machines can travel on-highway, but function primarily off-highway.
Cranes and Lifting Devices Committee
Caterpillar Ventures invests in Fisker for electric future19TOFHP02_112/1/2019
As automotive manufacturers compete to produce lower-cost electric vehicles (EVs) with greater ranges than ever, the off-highway construction and mining equipment industry has continued to show interest in the technologies developed for automotive use. Last year, Komatsu partnered with NVIDIA to integrate its AI (artificial intelligence) technologies for safer construction equipment. Now, Caterpillar Venture Capital, the business investment arm of Caterpillar, has invested in Fisker Inc. to further its EV technology developments into the off-highway industry. “It's not just the automotive industry that's going electric,” Henrik Fisker, Chairman and CEO of Fisker, told Truck & Off-Highway Engineering. “Caterpillar and Fisker are in two very different industries serving very different customers, but we're both interested in being part of developing the next-generation, game-changing battery technologies that may power vehicles of all varieties.”
Borst, Matthew
Volvo CE, Skanska demonstrate concept electric site19TOFHP02_062/1/2019
Volvo Construction Equipment and Swedish construction and mining company Skanska have recorded impressive initial results from an electric quarry research project. The two companies, working in partnership with the Swedish Energy Agency and two local universities, established an electric site within Skanska's Vikan Kross Quarry, near Gothenburg in Sweden. The concept site has been using a diesel electric hybrid wheeled loader, a cable-electric crawler excavator and crushing equipment, plus eight battery-powered autonomous haulers to quarry and transport blasted rock from the quarry face. In normal operation, the site requires a 70-tonne (77-ton) crawler excavator, a diesel-driven mobile crusher, a 50-tonne (55-ton) wheeled loader and three 50-tonne capacity rigid dump trucks to move around 700 tonnes (770-tons) of blasted rock per hour within the quarry. Between them, these machines consume around 3,000 L (792 gal) of diesel in a working day.
Gilkes, Dan
Agricultural and Forestry Off-Road Machinery Control and Communication NetworkJ1939/2_201901 (Current)1/14/2019
SAE J1939-2 specifies the requirements for application of SAE J1939 in agricultural and forestry equipment. This document specifies the series of documents within the set of SAE J1939 documents that are applicable to agricultural and forestry equipment and provides further requirements for this industry. The SAE and ISO groups have cooperated to define agricultural and forestry networks in a manner to allow compatibility of ECUs and messaging protocols between the A&F and the T&B networks.
Truck Bus Control and Communications Network Committee
Necessity of Advance Damper Technology for Future Agriculture Domain2019-26-01931/9/2019
There is an increasing demand from end-users of tractors for longer clutch durability, reduction in driver fatigue and comfort during field operations. Tractor manufacturers are moving towards Wet Clutch Pack with torsion dampers to meet this emerging customer needs. However, in Conventional Torsion Dampers, there is a technical challenge to withstand harsh clutch engagement or high unexpected impacts of agri-implements, which are common in field operations. This is in addition to, torsional vibrations produced by the power-train. There are constraints, to further optimize a conventional damper without compromising important parameters like factor of safety, noise and durability issues. Hence the proposed next generation damper technology can meet all the new technical requirements and can ensure smooth and durable power shift transmission in tractors. This case study has been done with help of SCHAEFFLER’s tailor made “Tornado Instrument” and “Software” by acquiring real time data (directly from agricultural field operations) from several OEMs followed by quantitative analysis of unexpected impacts, and addressing this issue with next generation damper technology.
Bagadekar, Vijaykumar Shankar, Alavilli, Satya Pavan, Kadhar Maideen, Salim Malik, Rajendran, Ashok Kumar, Radhakrishnan, Padmanaban, Soni, Sandeep
Introduction to Autonomous Trucking and Platooning TechnologyC191312/19/2018
Vehicle automation and intelligent transportation systems will be the cornerstones of sustainable smart cities of the future. People movers seem to be at the heart of technology development, field trials and on-road testing, and strategic business partnerships when it comes to connectivity and automated driving. Majority of the focus has been on unmanned operation and door-to-door service in urban environments and not on highways. Highways are relatively simpler to handle from an engineering stand-point, but vehicles typically operate at higher speeds, so the cost of accidents is worse. This is very applicable for Class 8 trucks that are hauling loads (i.e., heavy), big, and fast. At the same time, most of the truck maneuvering, especially on highway is pretty straightforward (i.e., maintaining a highway lane, usually the slowest one, with limited lane change maneuvers). It is also easy to contemplate how automating buses (where the routes are fixed) or construction equipment (in confided areas) make sense from a safety and economics point-of-view. This leads to the “Heavy metal first” hypothesis, where we explore why automation in the heavy-duty sector and industrial machines may happen sooner. Some truck OEMs and technology companies have been exploring truck automation. While some have explored concepts such as truck platooning (automated driving with a human in the cab), others have been testing fully autonomous trucks in customer operations. This course is intended to cover the basics of connected automation and provide a ringside view of everything happening in the area of truck automation with special focus on platooning including, but not limited to technology development, field trials, opportunities, and challenges facing the wide scale deployment of such systems.By attending this seminar, you will be able to: Recognize application scenarios for platooning to trucks and buses Appreciate the synergy between connectivity and automated driving systems Gain a solid understanding of the relationship between the different levels of vehicle automation Develop the ability to appreciate the impacts of automation on existing business operations Identify the complications with safely introducing automation on public roads 2 Days CEUs
Graphical Symbols for Operator Controls and Displays on Off-Road Self-Propelled Work MachinesJ1362_201812 (Historical)12/7/2018
SAE J1362 presents graphical symbols for use on operator controls and other displays on off-road work machines as defined in SAE J1116 plus mobile cranes but excluding agricultural tractors. Symbols for agricultural tractors are covered by ASABE S304, ISO 3767-1, and ISO 3767-2.
HFTC2, Machine Displays and Symbols
Braking Performance - Asphalt PaversJ2118_201810 (Current)10/4/2018
This SAE Standard specifies brake system performance and test criteria to enable uniform evaluation of the braking capability of self-propelled, rubber-tired and tracked asphalt pavers. Service, secondary, and parking brakes are included.
OPTC2, Braking
Sensing changes in autonomous trucks18TOFHP10_0710/1/2018
Requirements for sensors and controls for commercial vehicles differ significantly from those used for cars. Driver shortages and rising demand are fueling interest in technologies that let commercial trucks navigate with minimal to no human input. Many of the sensing systems being designed into trucks are borrowed from passenger cars, but commercial vehicles have many different requirements. Radar, cameras, lidar and control technologies for automated vehicles are all advancing quickly, giving commercial vehicle engineers a number of tools to work with. Highway speeds are largely universal, but many factors change when these electronic systems migrate from cars to trucks. The systems and their software will have to be honed to operate with vastly different parameters.
Costlow, Terry
SPOTLIGHT: TEST EQUIPMENT18TOFHP10_1310/1/2018
Cincinnati Test Systems (Harrison, Ohio) and Sciemetric Instruments (Ottawa, Canada) have brought the data management and analytics of Manufacturing 4.0 to leak and flow testing with their first collaboration as part of the TASI Group (Harrison, Ohio). The QualityWorX CTS DataHub is a turnkey platform for collecting and analyzing data from up to five CTS Sentinel instruments at a time, without requiring complex IT support to set up. It includes a host PC and Sciemetric Studio analytics software. Sciemetric Studio aggregates serialized leak test data for on-demand and in-depth analysis and visualization. According to the companies, manufacturers can begin collecting and analyzing data within minutes. For more extensive data collection requirements, the QualityWorX CTS Data Connector allows data from a CTS Sentinel instrument to be pushed to a QualityWorX database. This enables consolidation of production data from leak tests with other tests along the line. For more information, visit http://info.hotims.com/70477-450
A Novel Barricade Warning Light System Using Wireless Communications2018-01-50369/12/2018
Workers in construction and transportation sectors are at increased risk for work-related injuries and fatalities by nearby traffic. Barricade-mounted warning lights meeting current specifications do not always provide consistent and adequate visual guidance to drivers and can contribute to glare and reduced safety. Through an implementation of sensors and wireless communications, a novel, intelligent set of warning lights and a tablet-based interface were developed. The lights modulate between 100% and 10% of maximum intensity rather than between 100% and off in order to improve visual guidance and adjust their overall intensity based on ambient conditions. The lights can be synchronized or operated in sequential flash patterns at any frequency between 1 and 4 Hz, and sequential patterns automatically update based on global positioning satellite (GPS) locations displayed in the control interface. A successful field demonstration of the system verified that its functions were viewed favorably by transportation safety personnel.
Rea, Mark S., Skinner, Nicholas P., Bullough, John D.
Analysis of patent deposits and PROCONVE MAR – I in the development sector of agricultural machinery engines2018-36-02719/3/2018
Agriculture is directly associated with climate change issues and is a major source of Greenhouse Gas (GHG) emissions. Part of the emissions are the result of burning fossil fuels such as coal, natural gas and oil in internal combustion engines of agricultural machinery. In addition, because of negative impacts on air quality, human health and climate change, new strategies are being developed to reduce the impacts of GHG emissions. However, it is noted that there is a lack of information that instigates emissions of non-road equipment, such as emissions from agricultural machinery. Thus, in order to achieve climate policy objectives, new trends in agriculture are being adopted. They set emission standards for GHG reductions by agricultural engine engines. In Brazil, the Program for the Control of Air Pollution by Automotive Vehicles (PROCONVE) is responsible for establishing the legal regulations for admissible emissions for the different categories of motor vehicles. In order to control the emission limits of agricultural and road machinery, PROCONVE granted the MAR - I phase (Agricultural and Road Machinery), which came into force in 2015. Brazil, through the regulation of PROCONVE MAR - I, seeks to reduce GHG emissions, which among its guidelines are the improvement of the concepts of agricultural engine engines and their post - treatment technologies, resulting in improvements in the control of atmospheric emissions from exhaust gases. Thus, the article presents an analysis of the deposits in patent bases, through the Questel Orbit Platform, aiming at verifying who are the main manufacturers of the Brazilian market, what are the post-treatment systems for agricultural machinery engines and who are the countries which stand out for developing technologies linked to the reduction of the emission of pollutants. As a result, the main meta specifications structured in agricultural machines in countries with high emission standards include Selective Catalytic Reduction (SCR) for the control of NOx (Nitrogen Oxides), Exhaust Gas Recirculation (EGR) to enable cooling of the NOx formation and the Diesel Particulate Filters (DPF) in the control of PM (Particulate Material). In addition, the Electronic Fuel Injection System also allows a significant reduction in the emission of pollutant gases. As a consequence, research on these results can help to provide new conceptions of products that, besides being functional, have a legal adequacy, thus establishing a connection with PROCONVE MAR - I.
Silveira, Franco da, Ruppenthal, Janis Elisa, Farias, Marcelo Silveira de, Machado, Filipe Molinar, Costa, Marcela Avelina Bataghin, Amaral, Fernando Gonçalves
Nomenclature - Clam Bunk SkidderJ1353_201809 (Current)9/2/2018
This SAE Recommended Practice identifies major components and parts peculiar to clam bunk skidders. Illustrations used here are not intended to include all existing machines or to be exactly descriptive of any particular machine. They have been provided to illustrate the principles to be used in applying this document.
MTC4, Forestry and Logging Equipment
Component Nomenclature - Skidder - GrappleJ1111_201809 (Historical)9/2/2018
This SAE Standard characterizes grapple skidders and identifies the major components and parts most commonly associated therewith. Illustrations used herein are not intended to include all existing commercial machines or to be exactly descriptive of any particular machine. They have been included to facilitate application of this document
MTC4, Forestry and Logging Equipment
Avoiding Obstacles during Approach: DVE-Mitigation Flight Trials and BeyondF-0074-2018-127325/14/2018
ABSTRACT Helicopter landings on unprepared sites can quickly become a challenging task. Especially when environmental factors reduce the available visual cues for the pilot, the risk of disorientation increases. Motivated by avoiding accidents during helicopter approaches, a novel pilot assistance system was developed by a workgroup from the German Aerospace Center (DLR) and HENSOLDT Sensors GmbH. The research system combines 3D conformal tunnel-in-the-sky symbology with dynamic path updates driven by a laser sensor. In early 2017, the system was evaluated in flight using DLR's research rotorcraft Active Control Technology/Flying Helicopter Simulator (ACT/FHS). The workgroup was tasked to participate in flight trials with U.S. and Swiss teams during the NATO sponsored flight trials within the scope of the DVE-Mitigation (DVE-M) program. In this program, international efforts in the development of systems for enhanced situational awareness during DVE are supported. The evaluation of the system during the DVE-M trials included approaches which were obstructed by a truck with a 20m high man lift. Four external test pilots participated in the evaluations. Following the positive results obtained during these trials, two further flights were conducted in local scenery at Braunschweig/Wolfsburg airport, including a construction site with a hangar and a crane. Results of these six flights are presented and discussed in detail.
Zimmermann, Michael, Klasen, Stephanus, Gestwa, Martin, Lederle, Andreas
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