The invention discloses a steering-by-wire feeling device based on parameter
estimation and a control method thereof. The steering-by-wire feeling device comprises a
steering wheel as well as a
steering angle sensor, a
torque sensor, a
steering column, a steering feeling motor, a steering feeling controller and so on, wherein the
steering angle sensor, the
torque sensor, the
steering column, the steering feeling motor and the steering feeling controller are connected with the
steering wheel; the steering-by-wire feeling device further comprises a set of
clutch; the controller is used for detecting an error of a current state; the
clutch is controlled to switch to a spare motor steering mode. A
planning method comprises the steps of measuring a
signal through the sensor, estimating through Kalman filtering so as to obtain a current automobile
state variable, figuring out automobile steering resistance moment, and compensating and revising steering feeling through an automobile speed, a variable
transmission ratio and a lateral acceleration so as to obtain a current desired
steering wheel moment value. According to the steering-by-wire feeling device based on the parameter
estimation and the control method thereof, disclosed by the invention, the working mode can be switched through the additionally arranged
clutch to assure that a normal steering function can be still guaranteed to provide reliable steering feeling when a steering-by-wire mode has a fault; meanwhile, a driver can obtain good
road surface information during normal driving so that the maneuverability and the comfort of the automobile are improved.