An active intervention system for overheating failure of automobile brake and its control method

Abstract

The invention discloses an active intervention system for overheating and invalidation of an automotive brake and a control method of the active intervention system. The active intervention system comprises a central processing unit, an electronic braking pedal, a brake, an inclination sensor, a temperature sensor, an automotive gearbox and a gear detecting module, wherein the inclination sensor is arranged on an automobile, the temperature sensor is arranged on a braking component of the brake, and the gear detecting module is arranged on the automotive gearbox; the central processing unit is electrically connected with the electronic braking pedal, the brake, the inclination sensor, the temperature sensor, the automotive gearbox and the gear detecting module respectively. According to the active intervention system and the control method, which are disclosed by the invention, in a downhill process of an automatic transmission automobile, a gear of the automotive gearbox is automatically shifted into a low gear when the temperature of the braking component of the brake is too high, so that the automotive speed is limited through the reverse drawing of an engine, and the situation that the braking component of the brake is invalid because the temperature is too high and a driver adopts the driving brake to limit the automotive speed for a long time is avoided.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to an automobile brake overheating failure active intervention system and a control method thereof. Background technique [0002] The price of passenger cars has gradually decreased, and the number of people using the vehicles has become wider and wider. The driving experience of drivers varies from good to bad. When driving an automatic transmission car downhill, the vast majority of drivers will not put the gear into the low gear of manual mode, and use the engine to drag back to limit the speed of the vehicle, but only use the driving brake to control the speed. The slope length is longer when passing through mountainous areas When braking on a certain road for a long time, the temperature of the brake components of the brake will be too high, and its friction coefficient will drop sharply, resulting in brake failure and unnecessary danger. [0003] Chinese Patent Pub...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that some drivers do not shift gears into low gears when driving downhill with automatic gears, but only use service brakes for speed control, which may easily lead to braking of brake components due to excessive temperature. To solve the technical problem of automatic failure, an active intervention system and control method for overheating failure of automobile brakes are provided. Put the gear of the car transmission into the low gear, and use the engine to back drag to limit the speed of the vehicle, so as to avoid the driver using the driving brake to limit the speed of the vehicle for a long time, which will cause the brake components of the brake to fail due to excessive temperature

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