Lane deviation rectification control method and device

The invention discloses a lane deviation rectification control method and device, and the method comprises the steps: determining a first torque request in response to a lane deviation state, and enabling the first torque request to indicate the total torque required by deviation rectification; determining an optimal response time according to the first torque request; determining first actual response time of the steering wheel according to the current state; if the optimal response time is greater than the first actual response time, decomposing the first torque request into a first number of sub-torques; torque requests corresponding to the sub-torques are sent to the lane keeping system one by one, and after the response to the second torque request corresponding to the previous sub-torque is completed, a third torque request corresponding to the next sub-torque is sent. The multi-section type torque control mode is utilized, the next sub-torque is executed after one sub-torque is executed, the rotating t