An apparatus for estimating the drift size of a transverse acceleration sensor, a device for correcting the output of the transverse acceleration sensor and apparatus for estimating the road surfaces - friction state

摘要

An apparatus for estimating a drift size of a transverse acceleration sensor, wherein said device comprisesa steering moment sensor (11), which detects a steering torque,a restoring moment - computing section (23), one of the estimated value or a detected value of a restoring moment lenkmo - with the use of the element which, due to the steering moment sensor has been detected, calculated,a lateral acceleration sensor (15), which detects a lateral acceleration,a restoring moment - model value - calculation section of a restoring moment - model value on the basis of the transverse acceleration, the transverse acceleration sensor is detected by the calculated,a drift variables - occl etching section (31), of a drift size of the transverse acceleration sensor on the basis of the steering moment which, due to the steering moment sensor is detected, the transverse acceleration, the lateral - by the acceleration sensor (15) is detected, and a ratio between the restoring moment, which by means of the restoring moment - computing section (23) is calculated, and the restoring moment - model value, which is defined by the restoring moment - model value - computing section has been calculated, estimates.