Browse Topic: Construction vehicles and equipment

Items (787)

Regulatory Framework for Construction Equipment Vehicles in India

2024-26-008901/16/2024

The Construction & Mining field is continuously upgrading, reshaping under the stimulus of technical enhancement. India is considered one of fastest growing country in the word. Requirement for Construction Equipment Vehicles in India is continuously growing due increased rate infrastructure development. To promote development of the Construction Equipment Vehicles (CEV's) manufacturing sector it was also necessary to build a new governance architecture. Every vehicle plying on road has to comply with Central Motor Vehicle Regulatory requirements as per CMVR act 1989. Earlier 2021 CEV's were required to go through performance trials like brake, steering effort, turning circle measurement, speedometer calibration as dynamic tests as per regulations. It was need of the time to come with stringent norms or for better safety of operators & take CEV compatible international regulation. this paper puts forward the basic principles & safety requirements improved for CEV's over the time

Babar, Sagar, Akbar Badusha, A

Implications of Off-road Automation for On-road Automated Driving Systems

12/12/2023

Automated vehicles, in the form we see today, started off-road. Ideas, technologies, and engineers came from agriculture, aerospace, and other off-road domains. While there are cases when only on-road experience will provide the necessary learning to advance automated driving systems, there is much relevant activity in off-road domains that receives less attention. Implications of Off-road Automation for On-road Automated Driving Systems argues that one way to accelerate on-road ADS development is to look at similar experiences off-road. There are plenty of people who see this connection, but there is no formalized system for exchanging knowledge. Click here to access the full SAE EDGETM Research Report portfolio.

Optimization of Energy Management Strategy for Multi-Mode Hybrid Transmission Based on Condition Prediction

2023-01-703210/30/2023

Since there are no typical working conditions in the field of engineering vehicles, this paper implements the construction of driving conditions based on Markov stochastic model and energy management strategy of a multi-mode hybrid mine dump truck based on dynamic programming algorithm under this background. Firstly, on the basis of existing vehicle driving data, we calculate the velocity transfer probability matrix with the Markov stochastic model, and then construct the vehicle driving condition after predicting the velocity. The constructed working conditions are applied to the energy management strategy of dynamic programming algorithm to calculate the energy consumption of the hybrid mining truck. It is proved that this construction method can be applied to the hybrid electric mine dump truck, and the DP based energy management strategy has lower energy consumption.

Jiang, Y.T., Zhao, Xinxin, Zhang, J.G.

Interior Noise Reduction of Construction Equipment Vehicle Through Structure-borne Noise Reduction Strategy

2025-01-006305/05/2023

One can witness the constant development and redevelopment of cities throughout the world. Construction equipment vehicles (CEVs) are commonly used on the construction site. However, the noise pollution from construction sites due to the use of CEV has become a major problem for many cities. The construction equipment employed is one of the main causes of these elevated noise levels. The construction workers possibly are face a potential risk to their auditory health and well-being due to the noise levels they are exposed to. Different countries have imposed exterior and operator noise limits for construction equipment vehicles, enabling them to control noise pollution from CEVs. In this study, the operator ear level noise of the identified vehicle is 6 dB(A) higher than the regulatory limit in dynamic conditions, when tested as per ISO 6396. It was a tough time for the NVH engineer to reduce the interior noise level of the vehicle. Surprisingly, the steering unit and radiator fan were

Jawale, Pradeep

Soft Mate Lifting Device

11/01/2022

Lifting Crane Sheave and Drum Sizes

J881_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 Equipment

ARP1801A (Current)09/30/2021

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

INTEGRATED ACTIVE SAFETY SYSTEM FOR MOTOR GRADERS

2021-26-013709/22/2021

Safety of the operators in any equipment can be achieved by both passive and active systems. Passive safety system includes Seat belt, primary air bag, bumper, and other structural components which protects the operator from injuries during accidents. On the other side, Active safety systems like Braking, Steering, Collision avoidance system, operator fatigue monitoring systems minimise and eliminates the accidents among which the Brake system is primarily used to control and stop the equipment. Motor graders are work equipment which are designed to carry out many works like grading, spreading, levelling, metal mixing in road construction and many other infrastructure projects. Considering the field operating conditions of motor grader, it is very essential to provide excellent brake system to control and stop the equipment. In order to obtain maximum productivity the equipment speed is kept substantially high. Brake systems are operated using Air, Hydraulics, etc., among which the Air

KUMARAN, RAJASEKAR, hs, satish chandra

AVL’s perspective on future powertrains for mobile agricultural and construction machinery

2021-26-004709/22/2021

Zero emission technologies are arriving in the OFF-Road industry, driven by government regulations to reduce emissions and noise. Furthermore, future city bans will prohibit transit of vehicles with diesel engines in the central areas. These stricter legal requirements force the manufactures of mobile agricultural and construction machinery to develop vehicles with diesel alternative powertrains. This paper will discuss the potential of different powertrains using full battery electric, hybrid, fuel cell or hydrogen ICE technology. The technologies we be evaluated and compared in terms of integration ability, operation- and refilling time and TCO. There are considerable challenges in bringing alternative powertrains into typical off-road applications. Especially the huge number of different applications with specific requirements will lead to high diversity of powertrain architectures, which have to be managed by vehicle manufactures. The paper will describe these challenges and

Analytical Study on Influence of Shape of Bucket Cutting Edge of a Wheel Loader on Performance Parameters and Load Transfer

2021-26-013609/22/2021

The World has witnessed many groundbreaking innovations in the field of electronics, information technology, agriculture, finance and construction. Construction is an important area where a nation generates a major portion of its revenue. The construction machines like wheel loader, backhoe, excavator and articulated dump truck play a major role in keeping the work sight running and productive. Productivity is the most significant factor in business and every machine plays an important role in it. A wheel loader is mainly used for truck-loading material in a construction site. Apart from that, a loader is also used for operations like grading and front-back dragging. Some operations like corner pry and grading, impose extreme loads on underlying structures like lift arms and linkage. In these operations, cutting edge of the bucket is very crucial as it is highly involved. Cutting edge is welded at the front/bottom part of the bucket. With different shapes and types, the cutting edge

Lale, Tushar, Sarma, Neelam K

DESIGN AND IMPLEMENTATION OF IMPROVED AIR BRAKE SYSTEM FOR MOTOR GRADERS

2021-26-001509/22/2021

Motor graders are used in many applications in the mining and construction fields. Graders have to meet certain mandatory statutory regulations like a) Running in On-Road - CMVR Regulations and b) in the Mines(Off-Highway) - DGMS regulations. Motor grader having 16 Feet work blade length (used in Mines only) uses the air system for slow down and braking. The Study has been made to improve the reliability of the system and confidence among the operators by increasing the number of brake actuation frequency before the warning signal and also introduce the hand operated emergency brake to tackle unfavorable circumstances. The Modified air system has been implemented and tested as per the relevant ISO standard in the mines at customer site. The practical field tests reveal that the increase in number of actuations and emergency brake introduction brings more confidence in operators and ensures safety at the higher order. Based on the feedback, the modified air brake system is made as part

KUMARAN, RAJASEKAR, hs, satish chandra

Crane Boom Hoist Disengaging Device

J999_202109 (Current)

09/20/2021

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 Machines

J1535_202108 (Current)08/02/2021

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 Industrial

J1939/75_202107 (Current)07/15/2021

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

Diesel in distress

SAE-MA-0465606/10/2021

The global chip shortage undercuts surging demand for Cummins’ diesel engines in markets that have rebounded rapidly from 2020’s low point.

Aircraft Flotation Analysis

AIR1780A (Current)04/23/2021

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

A-5 Aerospace Landing Gear Systems Committee

Western Star develops all-new 49X with quieter cab, lighter but stronger chassis

20TOFHP12_0912/01/2020

Purpose-built from the ground up, the next-generation Western Star 49X vocational truck is underpinned by a stronger, lighter chassis and equipped with a new X-series steel-reinforced aluminum cab that's claimed to be the segment's largest with 10 to 13% more space while being 8% lighter. Technology upgrades that bolster productivity, safety and uptime for the vocational market include Detroit Assurance active safety systems such as Side Guard Assist and the Detroit DT12 Vocational series of automated manual transmissions, which debuts on the Class 8 vocational truck. “We've completely rethought the foundation of the 49X to make it easier to upfit,” David Carson, senior vice president, vocational segment, Daimler Trucks North America, stressed during a virtual press event introducing the new truck. Engineers focused on clear back-of-cab packaging and features that contribute to easier upfitting: forward-mounted DEF tanks; standard in-cab battery box; multiple air tank mounting

Autonomy Takes Off-highway

20AVEP11_0611/01/2020

Integrating automation systems in mining, agricultural and construction machines can increase safety and productivity in the field and bring significant economic benefits. Autonomous operation for on-highway commercial vehicles has grabbed headlines and public attention, rightfully so since these haulers increasingly will share the roads with passenger vehicles. But there is a lot of interesting new core work occurring in the off-highway autonomy space as well, according to Brendan Chan, chief engineer of unmanned systems and active safety at Oshkosh Corp. “There's the hub-to-hub stuff that everyone's been talking about. There's also a lot of geofence, low-speed applications where autonomy could be very useful and a very good value,” Chan said at the 2020 SAE COMVEC Digital Summit. Vehicles for yard maneuvering is one such application.

Softing envisions secure, reliable predictive maintenance

SAE-MA-0443607/13/2020

As heavy-duty vehicles become increasingly automated, on-board diagnostics, condition monitoring and predictive maintenance become even more vital.

Products of Tomorrow: July 2020

TBMG-3721307/01/2020

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.

Increasing connectivity, leveraging intelligence

SAE-MA-0441006/03/2020

Like so many other companies, Parker Hannifin’s plans to share its latest solutions at ConExpo/Con-Agg and IFPE in March were dashed due to the coronavirus pandemic.

Shuttleworth, Jennifer

Annual Product Guide

20TOFHP06_1206/01/2020

Increasing connectivity, leveraging intelligence

20TOFHP06_0306/01/2020

Parker Hannifin expert discusses IoT for mobile equipment and moving beyond standard telematics by integrating systems controllers and smart components. Like so many other companies, Parker Hannifin's plans to share its latest solutions at ConExpo/Con-Agg and IFPE in March were dashed due to the coronavirus pandemic. COVID-19 did not stop Truck & Off-Highway Engineering from talking with Parker's Clint Quanstrom, IoT General Manager, Motion Systems Group, via Microsoft Teams about technologies the company would have presented, future goals and industry trends. While demonstrating technologies is Quanstrom's preferred method of sharing the company's solutions, “Plan B” provided the opportunity to discuss one-on-one Parker's work relative to the Internet of Things (IoT) for motion systems. Booth visitors at ConExpo would have seen representative data that Parker can pull from machines. “We can provide tools like dashboards that offer customers an idea of how their systems are performing

Shuttleworth, Jennifer

Improvement of Tightening Reliability of Bolted Joints Using Elliptical Confidence Limit in Calibrated Wrench Method

2020-01-021804/14/2020

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

Hareyama, Soichi, Manabe, Ken-ichi, Kobayashi, Satoshi

Caterpillar reveals seven new next-gen excavators, increases push for remote control

20TOFHP04_1204/01/2020

New equipment launched in Las Vegas ranges from small electric machines to large next-gen excavators and everything in between. Caterpillar began launching its next-generation hydraulic excavators in late 2017, and the rollout continues two years later with the introduction of seven new excavators on the next-gen platform at the ConExpo-Con/Agg 2020 tradeshow in Las Vegas. A new family of small excavators - the standard-radius 313, 313 GC, and compact-radius 315 - fills a high-volume industry size class in the “sweet spot” of transportation. “The 13- and 15-ton excavator size range is huge, globally, in North America, really everywhere,” said product application specialist Brian Stellbrink, during a March 8 ConExpo press event.

Case unveils fully-electric backhoe loader, begins delivery this year

20TOFHP04_1304/01/2020

Case Construction Equipment's move toward alternative propulsion took another step forward at March's ConExpo-Con/Agg Show when it revealed “Project Zeus,” also known as the 580 EV electric backhoe loader. Leandro Lecheta, head of construction equipment in North America for CNH Industrial, was quick to point out that the fully-electric machine is not a concept - it's available for sale today and already has two customer orders in the U.S. The 580 EV is Case's first formal entry into the electric-equipment market. “The backhoe loader is perfectly suited for electrification as the varied use cycles, from heavy to light work, provide an excellent opportunity to convert wasted diesel engine hours into zero-consumption battery time - yet provide the operator with instantaneous torque response when needed,” said Eric Zieser, Case director of global compact equipment product line. “We're proving the viability of electrification at the larger end of the compact and light equipment spectrum

New standard will ease grade-control data sharing between construction machines

20TOFHP04_0704/01/2020

The Association of Equipment Manufacturers (AEM) has teamed up with the International Organization for Standardization (ISO) to create a standard that will allow worksite operators and managers to utilize geographical and topographical data from multiple providers of machine grade-control systems. The benefits of the grade-control interoperability standard were discussed at ConExpo/Con-Agg in March as part of the Tech Experience forum. An ISO representative was to provide an update for Part 4 of ISO 15143, which is designed for worksites that use a range of equipment types and gather data from a range of service providers like Leica, Trimble and Topcon. The Worksite Topographical Data Exchange document focuses on onsite radio corrections, digital terrain models, and overall jobsite information.

CONEXPO ROUNDUP

20TOFHP04_0404/01/2020

New equipment launched in Las Vegas ranges from small electric machines to large next-gen excavators and everything in between. Caterpillar began launching its next-generation hydraulic excavators in late 2017, and the rollout continues two years later with the introduction of seven new excavators on the next-gen platform at the ConExpo-Con/Agg 2020 tradeshow in Las Vegas. A new family of small excavators - the standard-radius 313, 313 GC, and compact-radius 315 - fills a high-volume industry size class in the “sweet spot” of transportation. “The 13- and 15-ton excavator size range is huge, globally, in North America, really everywhere,” said product application specialist Brian Stellbrink, during a March 8 ConExpo press event. The “jack-of-all-trades” 313 and 315 models are powered by the new C3.6 diesel engine delivering 110 hp (82 kW); the basic-level 313 GC sees power at 74 hp (55.4 kW) and provides lower operating costs, making it suitable for rental, municipal and general all

Kubota enters stand-on track-loader segment with new SCL1000

SAE-MA-0434603/12/2020

The smallest machine in Kubota’s construction-equipment lineup features a 3-cylinder turbocharged engine and a wide-track design for a soft footprint.

Specification Definitions - Hydraulic Backhoes

J49_202003 (Current)03/04/2020

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

Nomenclature - Hydraulic Backhoes

J326_202003 (Current)03/04/2020

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

Vehicle Application Layer

J1939/71_202002 (Historical)02/11/2020

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

Truck Bus Control and Communications Network Committee

EDITORIAL: ConExpo: Go big or go home

20TOFHP02_0602/01/2020

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.

AUTONOMOUS construction sites

20TOFHP02_0202/01/2020

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.

Volvo CE showcases 100-ton EC950F excavator, new hybrid assist that cuts fuel use by 15%

20TOFHP02_1302/01/2020

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.”

Latticed Crane Boom Systems - Analytical Procedure

J1093_202001 (Current)01/15/2020

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 Booms

J1078_202001 (Historical)01/15/2020

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 Friction

2019-01-233912/19/2019

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

Devlin, Mark, Adhvaryu, Atanu, Cameron, Timothy, Kariwa, Shinpei, Abekawa, Toshiharu

Hydraulic Directional Control Valves, 3000 psi Maximum

J748_201912 (Current)12/04/2019

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 design

19TOFHP12_0812/01/2019

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.

Tire Size Differential - Articulated Wheel Loader

J2204_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 Application

J1315_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 Test

J987_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 Vehicle

2019-28-012410/11/2019

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

Garud, Vikrant, Kulkarni, Akhilesh, Kulkarni, Abhijit, Wankhede, Sagar

19TOFHP10_1310/01/2019

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.

Three-Point Hitch (Type A) Backhoe Personnel Protection

J1518_201908 (Current)08/28/2019

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 Vehicle

10-03-03-001408/26/2019

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

Liu, Yingjie, Cui, Dawei

Lunar Surface Manipulation System

TBMG-3491208/01/2019

NASA's Langley Research Center offers a novel lifting and precision positioning device with hybrid functional characteristics of both crane-type lifting devices and robotic manipulators. The design of the Lunar Surface Manipulation System (LSMS) allows for fine positioning with complete control over both translation and rotation of the payload. In addition, the design permits several other operations using a wide variety of special-purpose tools — such as a bucket, pallet forks, grappling devices, sensor, and visualization packages — and dexterous robotic arms that can be quickly added to the tip.

Trucks with INTUITION

19TOFHP08_0408/01/2019

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 Machines

J1511_201907 (Current)07/29/2019

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)

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