Browse Publications Technical Papers 2018-01-0696
2018-04-03

Predicting and Achieving Objective Steering Performance Measures 2018-01-0696

Previous work has shown power steering boost gains are uniquely determined given a vehicle and a single objective target. The objective target used was steering gain, Sg, vs. lateral acceleration, ay, where steering gain is defined as the slope of the torque vs. lateral acceleration relationship. The previous work is expanded and applied to real world steering systems. Specifically, methods are provided to determine boost gain shapes given a user-defined steering gain vs. lateral acceleration specification or steering gain vs. torque specification. Each specification method is described in detailed steps. Approximations of each method are discussed and analyzed for practical use. The influence of static friction on steering performance is derived. It is shown that the hysteresis of the steering system is due to a coupling between static friction and a vehicle parameter that is easily derived from the bicycle model. Test results are provided to validate predictions.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X