CHASSIS AND VEHICLE DYNAMICS
Trucks (ID# 95025) or Advanced Vehicle Dynamics for Passenger Cars and Light Trucks (ID# C0415).
Fundamentals of Vehicle Suspension Design 2 Days | Classroom Seminar I.D.# C1618 The design and development of vehicle suspensions significantly influences vehicle handling and ride comfort. Suspension system design excellence follows the basic laws of physics using design synthesis techniques, a methodical process for suspension geometry development. Suspension geometry is the foundation of vehicle performance from which high-confidence suspension components and tunings can be developed. Suspension component design continues to move toward mass and cost efficient designs with high levels of stiffness being essential to achieving design requirements. Mass, cost and stiffness are expected to become increasingly important with higher fuel economy requirements, alternative energy sources and the move to autonomous vehicles. This course emphasizes the basic tenets of suspension design enabling strategically important product trends. Learning Objectives By attending this seminar, you will be able to: • Discuss the basic attributes of suspension design • Evaluate various suspension types, identifying advantages and tradeoffs • Convey an understanding of vehicle level boundary conditions for suspension geometry • Analyze suspension designs and how they affect vehicle performance • Assess the basics of ground lines and tire envelopes on vehicle design Who Should Attend This seminar is designed for automotive engineers with a need to understand the basics of suspension design as well as suspension integration into the vehicle environment. The course is intended for both OEM and Supplier Engineers working in applications, materials, product design, development, testing, simulation and/ or research. Prerequisites Participants should have a basic knowledge of suspension design either acquired through work experience or as a hobby. This information presented in this seminar will be helpful to individuals interested in enrolling in other SAE seminars such as Vehicle Dynamics for Passenger Cars and Light Trucks (ID# 99020), or Advanced Vehicle Dynamics for Passenger Cars and Light Trucks (ID# C0415).
Topical Outline DAY ONE • Introduction −− Elements of the steering system −− Coordinate systems • The Lower Steering System
−− Kingpin axis — Front versus rear steer; Caster angle and kingpin inclination; Caster trail and scrub radius; Steer arm −− Class exercise - Calculate moment about the kingpin axis for cornering and parking loadcases −− Linkages/steering geometry — Rack and pinion; Haltenberger; Parallel linkage −− Steering gear anatomy and architecture — Rack and pinion; Recirculating ball −− Friction and compliances −− Class exercise - Calculate pinion torque for cornering and parking loadcases • The Upper Steering System (steering column & intermediate shaft) −− Anatomy and architecture −− Non-uniformity −− Sources of friction and torsional compliance −− Role of the upper steering system in the occupant protection system DAY TWO • Power Assist Systems −− Hydraulic power assist including speed sensitive steering (incl. pump, valve, distribution system) −− Electro-hydraulic assist (incl. pump and motor assembly) −− Electric power assisted steering column, pinion, dual pinion, concentric drive and belt drive systems) −− Class exercise - Calculate a power steering assist curve for hydraulic or electric power assisted steering system DAY THREE • The effect of steering system design and tuning parameters on vehicle level performance −− Low speed maneuverability −− High speed on-center steering response and torque feedback −− High speed cornering response and torque feedback −− Error states (nibble/wheelfight, pull/drift) • Advanced Steering Systems
−− Active Park Assist −− Active Front Steer −− Driver assistance features −− Active rear wheel steer
Instructor: Fee: $1795
Timothy Drotar
2 CEUs
URL:
sae.org/learn/content/c0716/
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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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