Patent ID: 7007763
Filing Date: 2006-03-07
Classification: B60K,B60W,F16D,G05D,Y10T

Abstract:
1. An apparatus for controlling yaw in a motor vehicle comprising, in combination: a rear axle having an input adapted to receive drive torque and drive a pair of independently operable clutches adapted to drive a respective one of a pair of rear axles; a plurality of speed sensors for sensing speeds of a plurality of tire and wheel assemblies; a steering angle sensor; a lateral acceleration sensor; a yaw rate sensor; and a microprocessor adapted to received signals from said sensors and provide first and second independent signals for actuating said pair of clutches, said microprocessor including a pair of traction controller modules each having inputs for said plurality of speed sensors and said steering angle sensor and providing a torque output signal, a dynamics controller module having inputs for said plurality of speed sensors, said steering angle sensor, said lateral acceleration and yaw rate sensor, a yaw rate reference calculation subroutine, an oversteer and an understeer detection subroutine and a clutch selector subroutine providing left and right control outputs and an arbitrator module having inputs for said outputs from said pair of traction controller modules and said dynamics controller module.