B60W2720/20

Vehicle drift control method and system, and vehicle

A vehicle drift control method includes obtaining a required whole vehicle torque and state parameters of a vehicle in response to a drift operation instruction of a user. The state parameters include a first vehicle speed, a first yaw rate, and a first mass center sideslip angle. The method also includes determining a front axle torque ratio based on the state parameters; determining a required front axle torque and a required rear axle torque based on the front axle torque ratio and the required whole vehicle torque; and controlling torques of a front axle motor and a rear axle motor based on the required front axle torque and the required rear axle torque respectively.

System and method for determining a maximum phase recovery envelope

Systems and methods for determining a maximum phase recovery envelope are disclosed herein. In one example, a system includes a processor and a memory having a vehicle control module. The vehicle control module includes instructions that, when executed by the processor, cause the processor to determine a critical point on a phase plane indicating a maximum defined recovery point a vehicle can recover from, perform forward and reverse simulations from the critical point to define outermost contours of a maximum phase recovery envelope using parameters and state of the vehicle, and cause the vehicle to operate within the maximum phase recovery envelope.