Driving torque distribution method and electric vehicle

Abstract

The present invention provides a driving torque distribution method and an electric vehicle, and solves the problem that the electric vehicle cannot rationally distribute the torque of the front axle and the torque of the rear axle according to specific road conditions. The driving torque distribution method comprises: acquiring a selected terrain pattern; obtaining a first output torque corresponding to current first operating parameter information of the electric vehicle in the torque relationship table corresponding to the terrain patterns, wherein the first operating parameter information and output torques stored according to a corresponding relationship are saved in the torque relationship table; comparing the first output torque with a second output torque, to determine a target output torque, wherein the second output torque refers to the maximum output torque of the electric vehicle; and performing distribution processing on the target output torque according to second operating parameter information and a corresponding relationship between the second operating parameter information and torque distribution coefficients, to obtain the torque of the front axle and the torque of the rear axle of the electric vehicle. The torque of the front axle and the torque of the rear axle are reasonably distributed according to the terrain patterns, so that the electric vehicle is more stable and reliable under cross-country road conditions.

Description

technical field [0001] The invention relates to the technical field of automobile torque distribution, in particular to a driving torque distribution method and an electric vehicle. Background technique [0002] With the advancement of electric vehicle technology, electric vehicles are gradually becoming popular. The application range of electric vehicles has been extended to cars, SUVs, transport vehicles and other fields. At present, electric vehicles on the market are mainly suitable for relatively flat urban working conditions. Compared with traditional vehicles, the application of electric vehicles in some special working conditions is still limited, such as snow, mud, sand, 4L and other poor road conditions. Off-road conditions. [0003] In off-road conditions such as snow, mud, sand, and 4L, the vehicle is prone to drive wheel slippage, vehicle sideslip, and vehicle out-of-control problems such as digging and sand sinking. It is necessary to reasonably allocate and ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for distributing driving torque and an electric vehicle to solve the problem that the electric vehicle cannot reasonably distribute the torque of the front and rear axles according to specific road conditions

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