| 摘要 |
PURPOSE: An electronic stability control system of a vehicle is provided to increase stability for braking on the asymmetric road by using a plurality of sensors and measuring turning moment with motion information detected by the sensors. CONSTITUTION: An electronic control system of a vehicle having plural sensors(11,12,13,14) for detecting various motion information has a control unit(20) for computing turning moment by inputting the motion information detected from the sensors and outputting a braking control signal with a calculated turning moment value in traveling on a split road. The control unit comprises a pressure estimating unit(21) for presuming braking pressure acting on each wheel from a pressure value of a master cylinder detected by the sensor; a yaw rate estimating unit(22) for assuming yaw rate from steering angle of a steering wheel detected by the sensor; a yaw rate error computing unit(23) for calculating an error between the estimated yaw rate output from the yaw rate estimating unit and the measured yaw rate output from the sensor; a spin-out deciding unit(24) for judging if spin-out occurs by inputting each yaw rate and lateral acceleration detected by the sensors and a yaw rate error value of the yaw rate error computing unit and outputting a control signal; and a braking pressure control unit(25) for outputting a spin-out braking control signal when the control signal is output from the spin-out deciding unit, otherwise outputting a braking control signal by inputting the error value of the yaw rate error computing unit and the pressure value of the pressure estimating unit.
|
