Introduction to Brake Control Systems: ABS, TCS, and ESC
Duration: 2 Days
October 29-30, 2013 (8:30 a.m. - 4:30 p.m.
) - Troy, Michigan
Hotel & Travel Information
Once reserved for high-end luxury vehicles, electronic brake control systems are quickly becoming standard equipment on even the most inexpensive cars and trucks. Today, nearly every new vehicle benefits from the optimized braking, enhanced acceleration, or 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. Following an in-depth study of system electronics, hydraulic hardware, and sensor requirements, the participants learn about the control strategies employed by anti-lock brakes (ABS), dynamic rear proportioning (DRP), traction control (TCS), and electronic stability control (ESC) with strong emphasis placed on vehicle dynamic response. The seminar concludes with a study of unique applications, a look forward to advanced brake control system integration, and an overview of Federal Motor Vehicle Safety Standard 126. Over 500 pages of detailed course notes and illustrations are provided for on-the-job reference.
This course has been approved by the Accreditation Commission for Traffic Accident Reconstruction (ACTAR) for 13 Continuing Education Units (CEUs). Upon completion of this seminar, accredited reconstructionists should contact ACTAR, 800-809-3818, to request CEUs. As an ACTAR approved course, the fee for CEUs is reduced to $5.00.
By attending this seminar, you will be able to:
- Analyze brake system design parameters and their vehicle performance effects
- Evaluate the compromises between stability, steerability, and stopping
- Discern the discrete mechanical components required for ABS
- Specify fundamental ABS performance attributes
- Estimate dynamic brake balance and explain the benefits of DRP
- Reconcile TCS performance expectations vs. method of implementation
- Interpret ESC metrics and ultimate dynamic limitations
- Discuss opportunities for advanced brake control system integration
- Comprehend federal requirements for the performance of ESC
Who Should Attend
This course has been developed for engineers involved in all fields related
to the design or development of vehicle dynamics, vehicle braking systems,
powertrain systems, chassis systems, or suspension systems. In addition, this
course can be valuable to those with component design responsibilities in brake,
chassis, suspension, or tire disciplines.
Individuals new to the field of brake control systems will benefit most from
the material; this introductory course is not intended for individuals with
significant experience with brake control systems. In addition, please note that
because of proprietary considerations this class does not provide details of
algorithm design, algorithm performance, or algorithm application. Instead, the
course places strong emphasis on vehicle dynamic responses.
An undergraduate engineering degree or a strong technical background is highly recommended. A basic knowledge of college algebra, college physics, and a familiarity with vehicle brake and suspension systems is required.
- Tire-Road Interface Characteristics
- Defining slip
- Longitudinal mu-slip relationship
- Longitudinal vs. lateral slip capacity
- The friction circle
- Hydraulic Brake System Overview
- What do braking systems do?
- How does each component contribute?
- What are the underlying fundamental relationships?
- How does this apply to brake control systems?
- Stability, Steerability, Stopping Distance
- Define stability, steerability, stopping distance
- Illustrate with mu-slip curves
- Illustrate with friction circle
- Mechanization of ABS
- ECU functions and components
- HCU functions and components
- ABS hold, release, and apply functions
- Diagnostics and warning lamp considerations
- ABS Sensor Overview
- The role of sensors
- Wheel speed sensors
- Brake apply state sensors
- Longitudinal accelerometers
- ABS Performance
- ABS objectives and strategies
- Basics of ABS wheel control
- ABS performance on homogeneous surfaces
- ABS performance under other conditions
- DRP Performance
- Weight transfer and brake proportioning
- Proportioning valve design and performance
- DRP strategies, wheel control, and performance
- DRP benefits, design compromises, and limitations
- Mechanization of TCS and ESC
- Additional ECU functions and components
- Additional HCU functions and components
- Pressure build sequence
- TCS and ESC Sensor Requirements
- The role of sensors
- Steering angle sensors
- Brake pressure sensors
- Lateral accelerometers and yaw rate sensors
- TCS Performance
- TCS objectives and strategies
- Basics of TCS wheel control
- TCS performance under various conditions
- Driveline architecture interactions
- ESC Performance
- The physics of turning
- ESC objectives and strategies
- Basics of ESC wheel control
- ESC performance
- Driveline architecture
- Special Conditions and Considerations
- 4x4 and off-road considerations
- Racing and high-performance considerations
- Impact of vehicle modifications
- Advanced Integration (handout only - no presentation)
- Adaptive cruise control (ACC)
- Panic brake assist (PBA)
- Brake-by-wire (BBW)
- Federal Motor Vehicle Safety Standard 126
- ESC definitional requirements
- ESC dynamic performance test
- Stability and responsiveness requirements
- Industry rollout requirements
- Federal Register preamble requirements
- Learning Assessment
Instructor(s): James Walker, Jr.
James Walker, Jr. is currently a Principal Engineer specializing in chassis, brake, and electronic brake control systems at Carr Engineering, Inc. His prior professional experience includes brake control system development, design, release, and application engineering at Kelsey-Hayes, Saturn Corporation, General Motors, Bosch, Ford Motor Company, and Delphi.
Mr. Walker created scR motorsports consulting in 1997, and subsequently competed in seven years of SCCA Club Racing in the Showroom Stock and Improved Touring categories. Through scR motorsports, he has been actively serving as an industry advisor to Kettering University in the fields of brake system design and brake control systems. Since 2001, he has served as a brake control system consultant for StopTech, a manufacturer of high-performance racing brake systems.
In addition to providing freelance material to multiple automotive publications focusing on chassis and brake technology, Mr. Walker is the author of the book High-Performance Brake Systems: Design, Selection, and Installation
. In 2005, he was presented with the SAE Forest R. McFarland Award for distinction in professional development and education and in 2010 he was awarded the SAE Master Instructor designation. He obtained his B.S.M.E. in 1994 from GMI Engineering & Management Institute.
; SAE Members: $1005.00 - $1135.00
You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.
"This was an excellent technical description of all SCS systems, even for experienced engineers."
"Forget any general idea you may have about brakes; this class introduces the complexity of the brake control systems and the engineering design that goes into it."
Quality Engineering Powertrain
Toyota Motor Manufacturing of Kentucky
"Very good introduction to brake control systems. Our class had many different levels of knowledge coming into the class. I believe everyone was able to come away with new knowledge and understanding."
Honda of America Mfg., Inc.
"Very technical while at the same time easy to understand."
U.S. Army TACOM
"Outstanding! I was completely impressed with the instructor and his ease in explaining difficult material in a timely and entertaining manner."
Market Development Engineer
"I would recommend this course to all that are involved in the design of these products."
"The instructor is very dynamic and interesting to learn from. The course content is well presented and was very informative."
John J. Kaufman
"A well presented, comprehensive introduction to braking control systems."
Vehicle Certification Agency
"This class was extremely enjoyable and really opened my eyes to the complexity and importance of brake control systems. I had no idea how influenced they were to so many systems, and I feel it will definitely make me a better engineer"
To register, click Register button at the top of this page and submit the online form, or contact SAE Customer Service at 1-877-606-7323 (724/776-4970 outside the U.S. and Canada) or at CustomerService@sae.org.
For a quote on bringing this course to your company site, fill out a Corporate Learning Solutions Request Form