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Training / Education

Introduction to Brake Control Systems ABS, TCS, and ESC

2020-10-15
Once reserved for high-end luxury vehicles, electronic brake control systems are now required standard equipment on even the most inexpensive cars and trucks. Today, every new vehicle benefits from the optimized braking, enhanced acceleration, and improved stability that these systems provide. This comprehensive seminar introduces participants to the system-level design considerations, vehicle interface requirements, and inevitable performance compromises that must be addressed when implementing these technologies. The seminar begins by defining the tire-road interface and analyzing fundamental vehicle dynamics.
Training / Education

Fundamentals of Steering Systems

2020-10-05
Design and development of a modern steering system influences vehicle response to steering wheel input, driver effort, comfort, safety and fuel economy. In this interactive seminar participants will analyze the steering system from the road wheel to the steering wheel. Day one will begin with a deep dive into the anatomy and architecture of the lower steering system (wheel end, suspension geometry, linkages and steering gear), its effect on vehicle response and how forces and moments at the contact patch are converted to a torque at the pinion.
Training / Education

Commercial Vehicle Braking Systems

2020-05-12
Increased public pressure to improve commercial truck safety and new stopping distance regulations have intensified the need to better understand the factors influencing heavy vehicle braking performance. To assist individuals and their organizations in preparing for these new truck braking standards, this seminar focuses attendees on understanding medium-duty hydraulic brake systems and heavy-duty air brake systems and how both systems' performance can be predicted, maintained and optimized.
Training / Education

Brake Noise Problem Resolution

2020-04-20
Brake noise is one of the highest ranked complaints of car owners. Grunts, groans, squeaks, and squeals are common descriptions of the annoying problem which brake engineers spend many hours trying to resolve. Consumer expectations and the high cost of warranty repairs are pushing the optimization of brake NVH performance. This course will provide you with an overview of the various damping mechanisms and tools for analyzing and reducing brake noise. A significant component of this course is the inclusion of case studies which will demonstrate how brake noise squeal issues have been successfully resolved.
Training / Education

Tire Forensic Analysis

2020-04-19
This course provides a detailed description of tire failure modes, their potential causes, identification, and the sometimes-subtle nuances that go along with determination of tire failure. In addition, proper inspection techniques of tires will be discussed and samples will be available to reinforce the concepts learned. The course is helpful for investigators and individuals who need to be able to explore and explain tire failures, to point on the failure contributing factors. The course will help to clarify failure root cause between tire production process deviation, tire design and service application.
Training / Education

Basic Tire Mechanics and Applications

2020-04-18
This course introduces basic tire mechanics, including tire construction components based on application type, required sidewall stamping in accordance with DoT/ECE regulations, tread patterns, regulatory and research testing on quality, tire inspections and basic tire failure identification. The course will provide you with information that you can use immediately on-the-job and apply to your own vehicle. This course is practical in nature and supplemented with samples and hands-on activities. It serves as a good primer for the in-depth SAE Tire Forensic analysis course.
Technical Paper

Improvements in driver station of public transport vehicles (Buses) for better ergonomics to achieve enhanced driving efficiency in Indian driving conditions.

2020-04-14
2020-01-0867
The Indian economy is developing at good pace, hence sign of significant growth can be seen in transportation industry. The transportation industry comprises of two main verticals, one is goods transportation & other is public transportation. As India is country with dense traffic conditions, the driving is very fatiguing affair. The studies have shown that the driving efficiency has a significant effect on operating economy. The current paper work focuses on the improvement in ergonomic improvements in the driver station of a bus which is used as mode of transportation for public. In India the buses are deployed for school, staff, city & intercity application. All these application are exposed to different driving conditions. In the available literature of driver comforts major focus given to truck application. The present study focuses on bus application in Indian traffic conditions.
Technical Paper

Heavy Vehicles Kinematics of Automatic Emergency Braking Test Track Scenarios

2020-04-14
2020-01-0995
This paper presents the test track scenario design and analysis used to estimate the performances of heavy vehicles equipped with forward collision warning and automatic emergency braking systems in rear-end crash scenarios. The first part of this design and analysis study was to develop parameters for brake inputs in test track scenarios simulating a driver that has insufficiently applied the brakes to avoid a rear-end collision. In the second part of this study, the deceleration limits imposed by heavy vehicles mechanics and brake systems are used to estimate automatic emergency braking performance benefits with respect to minimum stopping distance requirements set by Federal Motor Vehicle Safety Standards. The results of this study were used to complete the test track procedures and show that all heavy vehicles meeting regulatory stopping distance requirements have the braking capacity to demonstrate rear-end crash avoidance improvements in the developed tests.
Technical Paper

NHTSA's 2018 Heavy Vehicle Automatic Emergency Braking Test Track Research Results

2020-04-14
2020-01-1001
This paper presents National Highway Traffic Safety Administration’s 2017 and 2018 test track research results with heavy vehicles equipped with forward collision warning and automatic emergency braking systems. Newly developed objective test procedures were used to perform and collect performance data with three single-unit trucks equipped with the crash avoidance systems. The results of this research show that the test procedures are applicable to many heavy vehicles and indicate that performance improvements in heavy vehicles equipped with these safety systems can be objectively measured.
Technical Paper

Investigation into the deformation of injector components in a common rail system based on numerical simulation

2020-04-14
2020-01-1398
The deformation of fuel injection system components cannot be disregarded as the pressure of the system increases. In particular, the control plunger and the needle of the solenoid injector tend to deform under high working pressure. Their deformation directly affects the volume of the control plunger chamber and the cross-section area of the fuel that enters the sac. A change in chamber volume influences the characteristics of needle movement, whereas a change in cross-section area influences needle movement and injection quantity. Consequently, the deformation of the injector bring difficulties to the precise control of the fuel injection system. In this study, a ADINA (a finite-element software) model of a BOSCH solenoid injector is established to calculate the structural deformation of the nozzle, the needle and the control plunger under different pressures. The accuracy of the model is validated using experimental data published in prior studies.
Technical Paper

A Vehicle Level Transient Thermal Analysis of Automotive Fuel Tanks

2020-04-14
2020-01-1342
Maintaining the fuel temperature and fuel system components below certain values is an important design objective. Predicting these temperature is therefore one of the key parts of the vehicles thermal management process. One of the physical processes affecting fuel tank temperature is fuel vaporization, which is controlled by the vapor pressure in the tank, fuel composition and fuel temperature. Models are developed to enable the computation of the fuel temperature, fuel vaporization rate in the tank, fuel temperatures along the fuel supply lines, and follows its path to the charcoal canister and into the engine intake. For Diesel fuel systems where a fuel return line is used to return excess fluid back to the fuel tank, an energy balance will be considered to calculate the heat added from the high-pressure pump and vehicle under-hood and underbody.
Technical Paper

Research on the performance of Magnetorheological Fluid Auxiliary Braking devices thermal management system based on Flat Plate Heat Pipes

2020-04-14
2020-01-0894
To prevent the braking recession, heavy commercial vehicles are often equipped with fluid auxiliary braking devices, such as hydraulic retarder. Hydraulic retarder can convert the vehicle’s kinetic energy to the fluid heat energy, which can enormously alleviate the main brake’s workload. The traditional hydraulic retarder can provide enough braking torque but has a delay during the braking. In this paper, a new type of magnetorheological fluid (MR fluid) hydraulic retarder is introduced by replacing the traditional fluid with magnetorheological fluid because of its linear braking torque and quick response. By changing the magnetic field intensity, it is easier to control the braking torque than the traditional hydraulic retarder. The rise of magnetorheological fluid temperature during the braking period will reduce the hydraulic retarder’s performance.
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