Automobile brake cooling control device and control method

Abstract

An automobile brake cooling control device comprises an automobile body controller, an air storage cylinder, a water storage barrel, a control valve assembly, a plurality of water spraying devices correspondingly arranged on tires and a plurality of tire pressure sensors correspondingly arranged on the tires, an air inlet of the water storage barrel is communicated with the air storage cylinder, and a water outlet of the water storage barrel is communicated with a water inlet of the control valve assembly. According to the control principle, when the vehicle runs, the vehicle body controller judges whether actual tire pressure values received from the tire pressure sensors are higher than corresponding tire pressure reference values or not and whether the difference value between the actual tire pressure values and the tire pressure reference values is larger than a set value or not, if yes, the vehicle body controller controls the control valve assembly to be opened, and if not, the vehicle body controller controls the control valve assembly to be closed; and the brake at the tire is cooled. When a high tire pressure value is detected, the control valve assembly is automatically opened to spray water to cool the brake, direct factors causing tire burst can be accurately detected, and the tire burst prevention effect is good.

Description

technical field [0001] The invention belongs to the technical field of vehicle braking, and in particular relates to an automobile brake cooling control device and a control method, which are suitable for preventing tire blowout caused by increased tire pressure. Background technique [0002] When heavy commercial vehicles use brakes continuously on long downhill roads, the brake drum will gradually generate high temperature, or the temperature of the road surface will rise in summer, and the friction between the tire and the road surface will cause the temperature of the tire surface to rise, which in turn will increase the tire pressure, resulting in a blowout, which seriously affects the Driving safety. [0003] At present, the commonly used brake cooling system is manually controlled on and off, and its operation timing and water valve opening are completely dependent on the driver's experience. Improper operation will easily lead to brake cooling failure and high safety...

AI Technical Summary

Problems solved by technology

[0002] Heavy-duty commercial vehicles brake continuously on long downhill roads, the brake drum will gradually generate high temperature, or the temperature of the road surface will increase in summer, and the friction between the tire and the road surface will cause the temperature of the tire surface to rise , and then increase the tire pressure, resulting in a blowout, seriously affecting driving safety

[0003] At present, the commonly used brake cooling system is manually controlled on and off, and its operation timing and water valve opening are completely dependent on the driver's experience. Improper operation will easily lead to brake cooling failure. High security risk

Chinese patent: The invention patent with the publication number CN105751835A and the publication date of 2016.07.13 discloses an automobile explosion-proof device and method. The device obtains the tire temperature of the wheel through a temperature sensor. When the tire temperature of the wheel reaches the warning temperature, Generate a control command to turn on the water pump switch on the water storage tank, and control the deluge nozzle to spray the cooling water in the water storage tank on the wheels to quickly cool the wheels, but the device cannot detect the tire pressure, and the tire pressure rises to burst The direct factor of the tire, there is a problem that the temperature cannot be accurately cooled to realize the run-flat tire

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