Vehicle snow mode control system and corresponding control method

Abstract

The invention relates to a snowfield mode control system for a vehicle and a snowfield mode control method for the vehicle. The snowfield mode control system for the vehicle comprises a rotating speed detection module, an accelerator pedal opening-degree detection module and a master control unit, wherein the rotating speed detection module is used for detecting information of rotating speeds of a front wheel and a rear wheel of the vehicle in real time and transmitting the detected information to the master control unit; the accelerator pedal opening-degree detection module is used for detecting vehicle accelerator pedal opening-degree information in real time and transmitting the detected information to the master control unit; and information of a threshold value of the rotating speed difference of the front wheel and the rear wheel of the vehicle in a snowfield mode and the accelerator pedal opening-degree maximum value are stored inside the master control unit, and the master control unit receives the information detected by the rotating speed detection module and the accelerator pedal opening-degree detection module in real time, calculates the detected information and compares the calculation result with the information stored inside to control an engine to run in a corresponding mode. The snowfield mode control system for the vehicle has less electrical wiring and simple principles, can control the vehicle to automatically switch to a running mode accurately, and is suitable for various vehicles with automatic transmissions.

Description

technical field [0001] The invention relates to a vehicle mode control system, in particular to a vehicle snow mode control system. The present invention also relates to a method for the vehicle snow control system to control the vehicle to switch to the snow mode. technical background [0002] As vehicles occupy more and more important positions in people's daily life, the safety of vehicles has become the direct basis for consumers to evaluate the quality of a vehicle. The safety performance of vehicles running on wet and slippery ground such as rain and snow is an important part of vehicle safety. [0003] Most of the existing automatic transmission vehicles are equipped with a snow mode. When the road surface is prone to slippery conditions such as snow, rain, ice, etc., the driver can press the button near the vehicle shift lever to set the operating mode of the vehicle. Switch to make the vehicle run in snow mode, that is, the vehicle starts in second or third gear t...

AI Technical Summary

Problems solved by technology

[0004] Since the above-mentioned switching of the vehicle operation mode is manually switched through the driver's self-identification, there is a large human factor, and there is a deviation in the judgment of the road condition, which may cause the driver to forget to adjust the vehicle driving mode according to the road condition. Switching, causing the vehicle not to be in the best operating condition, causing damage to the vehicle, and in severe cases, may cause injury to the occupants of the vehicle

[0005] In addition, the switching of the existing vehicle operation mode is to switch the vehicle operation mode by setting buttons, and this method needs to add buttons at the shifter or instrument panel, etc., which increases the electrical circuit and increases the cost. Incidence of mechanical failures and electrical failures, at the same time more complicated to operate, there are cases of operational failures, such as: when the button fails, cannot enter snow mode, or cannot switch to normal mode after entering snow mode, resulting in acceleration Weakness or inability to climb hills occurs, and at the same time increase the fuel consumption of the engine

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