Struktura kurzu
Tato část není lokalizována
Module I: Introduction
[Total Run Time: 24 minutes]
- Coordinate systems used to describe vehicle behavior
- Calculating wheel loads based on vehicle load, acceleration, road grades, aerodynamics and trailer towing forces
Module II: Acceleration
[Total Run Time: 1 hour, 10 minutes]
- Typical engine performance characteristics
- Functional model of the drive train
- Mapping the tractive force as a function of speed and gear
- Calculating tractive force at drive wheels for traction-limited performance
- Modeling traction limits on solid axles due to lateral load transfer
Module III: Braking
[Total Run Time: 1 hour, 35 minutes]
- Basic equations for calculating deceleration and stopping distance
- Advantages and disadvantages of disc and drum brakes
- Overview of global braking regulations
- A process for designing and proportioning a brake system for optimal performance
- Anti-lock brake (ABS) systems
- A means for evaluating the efficiency of the brake system under diverse conditions
Module IV: Road Loads
[Total Run Time: 1 hour, 30 minutes]
- Aerodynamics
- Mechanics of air flow over the car
- Governing equations for forces and moments acting on the vehicle and typical values
- Practical consequences of aerodynamics acting on the car
- Sources of tire rolling resistance and sensitivity to operating conditions
- Typical values of rolling resistance
- Overview of the primary sources of energy losses on the vehicle affecting fuel consumption
Module V: Ride
[Total Run Time: 2 hours, 45 minutes]
- Ride performance
- Basic mechanisms responsible for ride excitation
- Rigid-body ride models and metrics
- Suspension design factors influencing ride
- Measurement and evaluation of ride
Module VI: Cornering
[Total Run Time: 2 hours, 45 minutes]
- Basics of handling
- Low speed turning, off-tracking and maneuverability
- Ackerman steering and relationship to turning behavior
- Cornering properties of the tires in high speed turning
- Steer angle relationship to radius of turn and lateral acceleration
- Concept of understeer gradient
- Understeer gradient relationship to the yaw rate and lateral acceleration gains
- Critical speed, characteristic speed, sideslip angle, and static margin
Module VII: Suspensions
[Total Run Time: 1 hour, 50 minutes]
- Suspension effects on handling
- Influences on handling arising from roll moment distribution, camber change, roll steer, lateral force compliance steer, aligning moment and steering compliance
- Constant radius and constant speed methods for measurement of understeer gradient
- Suspension design and analysis
- Performance requirements for suspensions
- Principle types of suspensions and how each functions
- Solid axle suspensions Independent suspension types
- Roll center concept and roll center influence on vehicle behavior
- Mechanics of anti-dive and anti-squat
Module VIII: Steering
[Total Run Time: 2 hours, 10 minutes]
- Steering systems
- Typical architecture of the gearbox and rack and pinion steering systems
- Geometry of the steering linkages acting in combination with the suspension
- Different types of steering geometry errors affecting drift, wander, pulls and roll steer
- Geometry of the steering axis at the road wheels relating to caster, kingpin inclination, and offset at the ground
- Forces and moments acting on tires
- Influence of front wheel drive on steering behavior
- Advantages of four-wheel steer systems
Module IX: Rollover
[Total Run Time: 1 hour, 20 minutes]
- Mechanics of the rollover process
- Rollover metrics – static stability factor, tilt table ratio
- Principles for rollover mitigation by electronic stability and roll stability controls
- Rollover test procedures — the Fishhook, FMVSS 126 and UN/EXE 13 regulations
Materials Provided
- 90 days of online single-user access (from date of purchase)
- 17-hour presentation
- Nine video modules (see Topics/Outline tab)
- Integrated knowledge checks to reinforce key concepts
- Course handbook (downloadable, .pdf’s)
- Online learning assessment (submit to SAE)
- Follow up to your content questions
- 1.8 CEUs*/Certificate of Achievement (upon completion of all course content and a score of 70% or higher on the learning assessment)
*SAE International is authorized by IACET to offer CEUs for this course.
