CHASSIS AND VEHICLE DYNAMICS
Topical Outline DAY ONE • Introduction −− Suspension role in the vehicle −− Definition of upper and lower suspension planes −− Definition of dependent v. independent v. semi-independent suspensions • Front and Rear Suspension Types −− Identify various front suspension types and their advantages v. tradeoffs; also usage and application from solid axles to high performance multi-links −− Optimize placement of springs and shock absorbers within a front suspension • Vehicle Packaging −− Execute basic elements of vehicle packaging design −− Determine an allowable suspension envelope based on vehicle packaging −− Identify the best choice for suspension type(s) based on compartment requirements −− Class exercise - select the best suspension type for an autonomous vehicle DAY TWO • Suspension Geometry and Alignment −− Terms and definitions related to suspension geometry - e.g., caster, camber, toe −− Construct front view (FV) & side View (SV) suspension geometry e.g., front view swing arm (FVSA), roll center height, etc. −− Execute basic elements of design synthesis in setting up a corner geometry −− Determine various methods for achieving vehicle understeer −− Assess steering affects from the suspension - e.g., lateral force compliance steer • Tire Envelopes and Ground Lines −− Discuss analytical and test methods for determining tire envelopes −− Select appropriate methods for determining tire envelopes at each phase of the vehicle program −− Interpret ground line criteria in view of vehicle usage, including break-over, approach and departure angles • Vehicle Dynamics and NVH −− Discuss a vehicle coordinate system −− Use appropriate terms and definitions including roll, pitch, yaw and others −− Develop and/or critically review the chassis tuning process on a vehicle program timeline
High-Performance Brake Systems 2 Days | Classroom Seminar | On-site Delivery I.D.# C0718
While most passenger car brake systems are quite robust and reliable under typical operating conditions, high-performance driving and/or racetrack operation generally require alternative design solutions to optimize consistency and longevity. Whether it is brake fluid fade, cracked rotor discs, chronic knockback, or insufficient brake pad life, the stresses of motorsports can pose unique challenges to even the very best brake system designs. Consequently, ceramic rotors, six-piston calipers, adjustable balance bars, and titanium backing plates have all made their way onto the high-performance brake system scene, but what is the right answer for your application? This seminar has been designed to assist you in answering that very question. The day begins with a concise yet thorough analysis of brake system design factors relevant to all types and categories of high-performance vehicles. The principles of energy conversion, gain, balance, and deceleration are discussed and supported with straightforward mathematical models, allowing attendees to realize the compromises that must be considered when designing from a system perspective. From selecting an appropriate brake pedal ratio through the calcu- lation of caliper effective piston area, the second portion of the seminar dives into the details of brake system component design. Based upon the principles learned earlier in the day, attendees will quickly realize that just as with proper system design, brake system component design is an exercise in managing engineering trade-offs. As a result, the material presented will not disclose what components to choose as much as how to choose them. Day Two of the seminar concludes with a design exercise that will allow attendees to put into practice several of the key concepts learned throughout the seminar. Detailed course notes and illustrations are provided along with a copy of “High-Perfor- mance Brake Systems: Design, Selection, and Installation” for on-the-job reference. Learning Objectives By attending this seminar, you will be able to: • Estimate brake system energy capacity • Approximate brake system gain requirements • Calculate vehicle deceleration • Establish brake proportioning for ideal balance • Determine pedal ratios, booster output, and hydraulic system gain • Discuss the differences between brake fluid chemistries • Specify brake caliper components • Differentiate between brake pad friction materials • Select rotor technologies for application-specific needs
−− Discuss the role of the tire in vehicle handling −− Interpret oversteer / understeer / ackerman steer
Instructor: Fee: $1415
William Pinch
1.3 CEUs
URL:
sae.org/learn/content/c1618/
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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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