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Brake disc pre-cleaning method

A pre-cleaning and brake disc technology, which is applied to vehicle components, optical signals, brakes, etc., can solve problems such as reduced braking performance, poor driving environment, and brake disc damage, so as to improve life, prolong service life, and repair flatness Effect

Inactive Publication Date: 2020-09-01
毕作亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The design life of the brake discs of civil vehicles is mostly 80,000 kilometers to 160,000 kilometers, but according to the maintenance records, some vehicles only have 20,000 kilometers to 40,000 kilometers before the brake disks are damaged, resulting in greatly reduced braking performance and a series of brake vibrations. question
At present, the consensus in the industry is that the driving environment is not good, and the road dust is adsorbed on the brake disc, causing early damage to the brake disc.
[0003] In addition, when driving in rainy days, due to the airflow, a water film will be formed on the surface of the brake disc, which will reduce the braking performance and pose a great safety hazard.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In the brake disc pre-cleaning method described in the present invention, taking a B-class car as an example, the vehicle speed preset value is set to 60 km / h by the ECU of the vehicle body, and the contact time between the friction plate of the brake caliper and the brake disc is 0.5 seconds. The contact pressure is 10% of the maximum braking pressure, the timing cycle is 5 minutes, the tire circumference of the B-class car is about 2 meters, and it travels about 8.3 meters in 0.5 seconds. The brake caliper friction plate and the brake disc About 4 circles can be touched.

[0024] When the current vehicle speed is greater than or equal to 60 km / h, and the accelerator pedal is fully retracted for the first time, the brake light will be on for 0.5 seconds, and the ECU of the vehicle body will start timing, and control the electronic booster master cylinder to make the friction plate of the brake caliper Contact the moving disc for 0.5 seconds to clean the surface of the ...

Embodiment 2

[0026] In the brake disc pre-cleaning method described in the present invention, taking a B-class car as an example, the vehicle speed preset value is set to 80 km / h by the ECU of the vehicle body, and the contact time between the brake caliper friction plate and the brake disc is 0.5 seconds. The contact pressure is 20% of the maximum braking pressure and the duration of the timing cycle is 2 minutes.

[0027] When the current vehicle speed is greater than or equal to 80 km / h, and the accelerator pedal is fully retracted for the first time, the brake light flashes for 2 seconds, and the ECU of the vehicle body starts timing, and controls the electronic power master cylinder to make the friction plate of the brake caliper and the brake Contact the moving disc for 0.5 seconds to clean the surface of the brake disc. If the vehicle speed is still greater than or equal to 80 km / h during the timing period, the timing period will continue until the set time ends; during the timing pe...

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PUM

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Abstract

The invention relates to a brake disc pre-cleaning method, which belongs to the technical field of vehicle control. In the running process of a vehicle and before braking, a brake caliper friction plate makes pre-contact with the brake disc, the brake disc is cleaned, the service life of the brake disc is prolonged, and the running safety is improved. According to the brake disc pre-cleaning method, a vehicle body is included, an ECU of the vehicle body is provided with an adjustable vehicle speed preset value, and when the current vehicle speed is larger than or equal to the vehicle speed preset value and an accelerator pedal is completely retracted for the first time, the brake caliper friction plate makes contact with the brake disc.

Description

technical field [0001] The invention relates to a method for pre-cleaning a brake disc, which belongs to the technical field of automobile control. Background technique [0002] The design life of the brake discs of civil vehicles is mostly 80,000 kilometers to 160,000 kilometers, but according to the maintenance records, some vehicles only have 20,000 kilometers to 40,000 kilometers to cause damage to the brake disks, resulting in greatly reduced braking performance and a series of brake vibrations. question. At present, the consensus in the industry is that the driving environment is not good, and the road dust is adsorbed on the brake disc, causing early damage to the brake disc. [0003] In addition, when driving in rainy days, due to the driving of the airflow, a water film will be formed on the surface of the brake disc, which will reduce the braking performance and pose a greater safety hazard. [0004] Since car companies strictly control production costs, it is ur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T1/06B60Q1/44
CPCB60Q1/44B60T1/065
Inventor 毕作亮
Owner 毕作亮