Control method and device of dual-motor vehicle and electronic equipment

Abstract

The invention discloses a control method and device of a dual-motor vehicle and electronic equipment. The method comprises the steps that on the basis of vehicle parameters and driving parameters which are obtained in advance, the vehicle acceleration, the road adhesion coefficient and the road slope are calculated, the driving parameters at least comprise the steering wheel rotation angle and the accelerator pedal opening degree, and the vehicle parameters at least comprise the current vehicle speed; calculating a driving stability factor based on the vehicle acceleration, the road adhesion coefficient, the steering wheel angle and the current vehicle speed; determining a target working mode based on the driving stability factor, the accelerator pedal opening degree, the current vehicle speed, the road slope and a control mode selected by a driver; and calculating a torque distribution parameter according to the target working mode and the vehicle state of the driving vehicle. The technical problem that the current electric vehicle lacks consideration on the power performance of the whole vehicle and the intention of a driver in the prior art, and the operation performance is affected is solved.

Description

technical field [0001] The present invention relates to the technical field of automobile control, and in particular, to a control method and device of a dual-motor vehicle, and electronic equipment. Background technique [0002] In the related art, the development of electric vehicles and hybrid electric vehicles is getting faster and faster. Compared with traditional fuel vehicles, electric vehicles, especially front and rear axle four-wheel drive vehicles, have multiple power sources, which are more complicated in torque control. In the current mass-produced electric four-wheel drive electric vehicles, the torque distribution of the front and rear motors is basically a fixed ratio or several adjustable fixed ratios during normal driving. In the actual driving process, a single indicator or a fixed ratio is used to distribute the front and rear axles. The motor drive torque cannot meet the driver's driving needs of economy or power. At the same time, the working mode of hy...

AI Technical Summary

Problems solved by technology

[0002] In related technologies, the development of electric vehicles and hybrid vehicles is getting faster and faster. Compared with traditional fuel vehicles, electric vehicles, especially front and rear axle four-wheel drive vehicles, have multiple power sources and are more complicated in torque control.

In the current mass-produced electric four-wheel drive electric vehicles, the front and rear motor torque distribution is basically a fixed ratio or several adjustable fixed ratios during normal driving. In the actual driving process, a single index or a fixed ratio is used to distribute the front and rear axles. The driving torque of the motor cannot meet the driving needs of the driver for economy or power. At the same time, the working mode of the hybrid four-wheel drive generally starts from fuel economy, and the economy of the whole vehicle is improved through the torque distribution of the engine and the motor, and less consideration is given to the driver. Intention and vehicle power performance requirements, there are problems such as slow power response and poor handling performance

[0003] For the above problems, no effective solution has been proposed

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