CHASSIS AND VEHICLE DYNAMICS
Topical Outline D AY ONE • Modeling Primary Ride Dynamics −− 4-degree of freedom (DOF) primary ride model −− 2-DOF primary ride model • Modeling Vehicle Handling Dynamics −− Developing the cornering compliance model −− Developing the transfer function • Introduction to Vehicle Dynamics CAE −− Types of models −− Strengths/Limitations −− Commercial software packages • Measurement and Simulation of Suspension Kinematics and Compliance (K&C) −− Objectives of the K&C test −− Definitions −− Measurement equipment −− Common tests −− Simulation of the K&C test • Measurement and Simulation of Primary Ride −− Primary vs. Secondary Ride −− Physical measurements DAY TWO • Measurement and Simulation of Acceleration and Braking −− Steady state acceleration test and metrics −− Steady state braking test and metrics −− Simulation of steady state acceleration and braking • Measurement and Simulation of Steering −− On-center steering test and metrics −− Low-g swept steer test and metrics −− Simulation of steering tests • CarSim TM Exercise - Steering • Measurement and Simulation of Open Loop Handling −− Definition of open loop −− Steady state open loop tests — High-g swept steer −− Transient open loop tests — Step steer; Brake/throttle release in a turn; Fishhook; Sine with dwell DAY THREE • Measurement and Simulation of Closed Loop Handling −− Definition of closed loop −− Steady state closed loop tests — Constant radius −− Transient closed loop tests — Lane change; Slalom −− Simulation of closed loop handling tests • CarSim TM Exercise - Closed Loop Handling • Design of Experiments (DOE) Applied to Vehicle Dynamics Development −− Common primary ride metrics −− Olley Criteria for primary ride −− Primary ride simulation • CarSim TM Exercise - Primary Ride Simulation −− Simulation of open loop handling tests −− CarSim TM Exercise - Open Loop Handling
−− What is DOE −− Why use DOE −− Terminology −− Types of DOE’s −− Example - Screening DOE for primary ride −− Example - Response Surface Method (RSM) DOE for Transient Handling −− Vehicle Dynamics Summary
Instructor: Fee: $1795
Timothy Drotar
2 CEUs
URL:
sae.org/learn/content/c0415/
Applied Vehicle Dynamics 3 Days | Classroom Seminar BMW Performance Driving School I.D.# C0414
Please be advised that this course involves one or more of the following: driving and/or riding in a vehicle; participating in a vehicle demonstration; and/or taking part in an offsite tour using outside transportation. You will be required to sign a waiver on-site and produce a valid driver’s license from your state/ country of residence. While a variety of new engineering methods are becoming available to assist in creating optimal vehicle designs, subjective evaluation of vehicle behavior is still a vital tool to deliver desired braking, handling, and other dynamic response characteristics. In order to better prepare today’s engineer for this task, this course offers twelve modules devoted to key the fundamental principles associated with longitudinal and lateral vehicle dynamics. Each focused classroom session is paired with an on-track exercise to immediately reinforce these concepts with a dedicated behind- the-wheel driving session, effectively illustrating these principles in the real world. Note that unlike most driving schools, this course is not designed to train performance drivers. Rather, the exercises on days one and two build the bridge between vehicle dynamics theory and practical application by providing a rich academic underpinning and then reinforcing it with highly focused and relevant driving experiences. Significant technical skill-building is provided on day three, with increased instructor-supervised track time to further absorb the principles learned on days one and two. If your job description does require performance driving skills, the dynamic exercises on day three will lay a solid foundation on which you can independently refine your own skills. This course has been approved by the Accreditation Commission for Traffic Accident Reconstruction (ACTAR) for 24 Continuing
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