Vehicle drive-by-wire drive and mechanical brake hybrid control system and method

The invention relates to the technical field of vehicle motion control, in particular to a vehicle drive-by-wire drive and mechanical brake hybrid control system and method. The vehicle drive-by-wiredrive and mechanical brake hybrid control method comprises the steps: firstly, collecting an expected vehicle speed signal, an actual vehicle speed signal and a brake signal; taking the acquired expected vehicle speed signal, the actual vehicle speed signal and the brake signal as calculation input, and acquiring a generalized representation value of a longitudinal driving/braking torque requiredby a current vehicle; and finally dividing the generalized representation value into a driving force control instruction and a servo brake pushing distance value instruction, wherein a VCU receives the driving force control instruction to control the driving motor to provide driving force to the vehicle, and a servo brake controller receives the servo brake pushing distance value instruction to control the servo brake to p