Vehicle four-wheel drive control method, device and system

Abstract

The present application relates to an automobile four-wheel drive control method, device and system. The method includes: determining the entered four-wheel drive style according to the current working mode of the automatic transmission and the preset mode-style correspondence; sending a control signal to the torque manager according to the determined four-wheel drive style; the control signal is used to indicate the torque The manager directs the car's rear axle to deliver torque to match the AWD style. The four-wheel drive controller in each embodiment of the present invention can switch the four-wheel drive system mode according to the current working mode of the automatic transmission, without the need for a four-wheel drive style switching button, and without the need for the driver to manually switch the four-wheel drive style each time, realizing the intelligent automatic control of the car. Switch four-wheel drive style. The various embodiments of the present invention can reduce the cost, reduce the weight of the whole vehicle, improve driving comfort and fuel economy, further improve the intelligence of the whole vehicle, and pave the way for unmanned driving.

Description

technical field [0001] The present application relates to the technical field of automobile control, in particular to an automobile four-wheel drive control method, device and system. Background technique [0002] At present, the electronically controlled four-wheel drive uses the four-wheel drive knob to change the four-wheel drive style (that is, the four-wheel drive driving mode). The mode switching requires the driver to manipulate the four-wheel drive knob to change the four-wheel drive style. The four-wheel drive controller controls the rear axle according to the four-wheel drive style. The size of the torque transmission. [0003] In the process of implementation, the inventor found at least the following problems in the traditional technology: traditionally, the four-wheel drive style is changed through the four-wheel drive knob, and the mode switching requires the driver to operate, that is, the four-wheel drive style is manually selected, and the level of intellige...

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Problems solved by technology

[0003] In the process of implementation, the inventor found at least the following problems in the traditional technology: traditionally, the four-wheel drive style is changed through the four-wheel drive knob, and the mode switching requires the driver to operate, that is, the four-wheel drive style is manually selected, and the level of intelligence is low.

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