CHASSIS AND VEHICLE DYNAMICS
−− What are the underlying fundamental relationships? −− Driving exercise - Limit braking • Slip Angle and Transient Response −− Slip angle and cornering stiffness −− High-speed steering and transient response −− Lateral weight transfer −− Driving exercise - Lane change • Braking Stability −− Rear brake proportioning fundamentals −− Braking stability −− Rear brake proportioning in practice −− Driving exercise - Brake in a turn • Combining Lateral and Longitudinal Slip −− Braking in a turn, turning while braking −− Drive-off in a turn, turning during drive-off −− Driving exercise - Avoidance maneuver • Anti-Lock Brake Systems −− Stability, steerability, and stopping distance −− Objectives and strategies of ABS −− ABS performance −− Driving exercise - Avoidance maneuver • Electronic Stability Control DAY THREE • Test Procedure Selection −− Defining terms and concepts −− Test circuit overview −− Driving exercise - Baseline path • Test Procedure Sensitivity −− Defining the apex −− Driving the friction circle −− Driving exercise - Path variation • Test Vehicle Sensitivity −− Brief USG review −− Impact of tire pressure adjustments −− Driving exercise - Low pressure evaluation • Comparison Vehicle Evaluation −− Comparison vehicle overview −− Driving exercise - Lapping in comparison vehicle • Learning Assessment −− Objectives and limitations of ESC −− ESC detection and countermeasures −− ESC performance −− Driving exercise - Wet skidpad DAY TWO • Steady-State Cornering −− The understeer gradient −− Components of the USG −− Driving exercise - Graphing the USG
Education Units (CEUs). Upon completion of this seminar, accredited reconstructionists should mail a copy of their course certificate and the $5 student CEU fee to ACTAR, PO Box 1493, North Platte, NE 69103. Learning Objectives By attending this seminar, you will be able to: • Explain tire-road friction limits and compose the friction circle for a given vehicle system • Compute fundamental braking response attributes • Illustrate the physics of turning and calculate lateral weight transfer • Estimate brake system balance and brake proportioning • Measure and graph a vehicle’s understeer gradient • Analyze basic anti-lock brake system (ABS) operation • Discuss the effectiveness and limitations of electronic stability control (ESC) systems • Calculate the most efficient path for a vehicle to negotiate a given test maneuver • Comprehend the effects that test protocol can have on vehicle dynamics • Predict what response characteristics can be influenced by vehicle state • Define those vehicle dynamic attributes which can be impacted through vehicle selection Who Should Attend This course has been developed for engineers and technical personnel involved in all fields related to the design or devel- opment 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 responsi- bilities in brake, chassis, suspension, or tire disciplines who desire a fundamental background in vehicle dynamics with a practical driving linkage. Prerequisites While not required, potential attendees should have an under- graduate engineering degree or a strong technical background. As a minimum, a basic knowledge of college algebra, college physics, and a familiarity with vehicle brake and suspension systems
Topical Outline DAY ONE • Longitudinal Slip and Weight Transfer −− Defining vehicle dynamics and longitudinal slip −− Longitudinal mu-slip relationship −− Principles of longitudinal weight transfer −− Friction circle concept −− Driving exercise - Orientation • Fundamentals of Straight-Line Braking −− What do braking systems do? −− How do each of the components contribute?
Instructor: Fee: $3095
James Walker Jr.
2.4 CEUs
URL:
sae.org/learn/content/c0414/
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3 ways to get a no-obligation price quote to deliver a course to your company: Call SAE Corporate Learning at +1.724.772.8529 | Fill out the online quote request at sae.org/corplearning | Email us at corplearn@sae.org
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