Vehicle control method and device and vehicle

Abstract

The invention relates to a vehicle control method and device and a vehicle, and relates to the field of vehicle control, and the method comprises the steps that a first request torque corresponding to a front power system and a second request torque corresponding to a rear power system are determined according to the vehicle speed and the opening degree of an accelerator pedal; determining a first correction factor and a second correction factor according to the running state of the vehicle, the temperature of the front power system and the temperature of the rear power system; and determining a first correction torque and a second correction torque according to the first request torque, the second request torque, the first correction factor and the second correction factor. And determining a first maximum output torque and a second maximum output torque according to the temperature of the front power system and the temperature of the rear power system. And determining a first actual output torque and a second actual output torque according to the first correction torque, the first maximum output torque, the second correction torque and the second maximum output torque. And controlling the front power system to output a first actual output torque, and controlling the rear power system to output a second actual output torque.

Description

technical field [0001] The present disclosure relates to the field of vehicle control, and in particular, to a vehicle control method, device, and vehicle. Background technique [0002] With the rapid development of society, the number of cars is getting higher and higher, and the control performance of cars is getting more and more attention. In the starting stage of the vehicle, by enabling the ejection start function, the motor can be driven to output the maximum torque at the moment of starting, so that the vehicle can start at the maximum acceleration. Under normal circumstances, the realization of the ejection start function is that when the driver releases the brake pedal, the motor controller responds to the vehicle torque request sent by the vehicle controller and controls the motor to output the maximum torque. However, since the temperature of the power system rises rapidly when the vehicle is ejected and started, it may affect the ability of the motor to output ...

AI Technical Summary

Problems solved by technology

However, since the temperature of the power system rises rapidly when the vehicle is ejected and started, it may affect the ability of the motor to output torque. The motor cannot output the maximum torque at the moment of starting

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