Oversteering preventing method for e.g. motor vehicle, involves generating signal e.g. sound alert signal, when effort on steering rack decreases relative to lateral effort and rotation speed of flywheel is higher than threshold speed

摘要

#CMT# #/CMT# The method involves generating a signal e.g. sound/light alert signal, when an effort associated with behavior of tires of front wheels (1) e.g. steering wheels, under deformation, exerted on a steering rack (6) decreases with respect to a lateral effort and a rotation speed of a flywheel (2) is higher than a threshold speed, where movement of the rack is due to the effort of torque applied by the fly-wheel and of power torque applied by an electric motor (5). A residual function of time is defined from the effort exerted on the rack and from the lateral effort exerted on tires. #CMT# : #/CMT# An independent claim is also included for a motor vehicle equipping an electrical power assisted steering system for orienting a train of steering wheels. #CMT#USE : #/CMT# Method for preventing over steering at a fly-wheel of vehicle e.g. motor vehicle (claimed). #CMT#ADVANTAGE : #/CMT# The method generates the sound alert signal, when the effort on the steering rack decreases with respect to the lateral effort and the rotation speed of the flywheel is higher than the given threshold speed, thus preventing over steering at the fly-wheel of motor vehicle, and hence preventing exaggerated action of a driver in a panic situation to avoid accidents. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a simplified schematic representation of electrical power assisted steering elements connecting a fly-wheel to steering wheel of a vehicle. 1 : Front wheels 2 : Flywheel 5 : Electric motor 6 : Steering rack 7, 8 : Connecting rods.