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A high-temperature re-clamping method and system for electronic parking

An electronic parking and high temperature technology, which is applied in the field of vehicle automatic control, can solve the problems affecting the safety of vehicle parking, insufficient clamping force of the friction plate and the brake disc, etc., so as to avoid high temperature parking rollback and high temperature re-clamping The effect of precise operation and high degree of generalization

Active Publication Date: 2020-09-11
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the temperature of the friction lining and brake disc is too high when the vehicle is parked, the volume of the friction lining and brake disc will change due to the gradual cooling of the friction lining and brake disc, resulting in a gap between the friction lining and the brake disc. Insufficient clamping force will cause the vehicle to slide and affect the parking safety of the vehicle
[0005] In summary, a high-temperature re-clamping method and system for electronic parking has been developed to solve the problem of friction between the friction lining and the brake disk due to the gradual cooling of the friction lining and the brake disk after parking when the temperature of the friction lining and the brake disc is too high. The clamping force between them is not enough, which causes the problem of vehicle sliding slope, which is particularly important

Method used

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  • A high-temperature re-clamping method and system for electronic parking
  • A high-temperature re-clamping method and system for electronic parking
  • A high-temperature re-clamping method and system for electronic parking

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Embodiment 1

[0050] Such as figure 1 As shown, this embodiment discloses a high-temperature re-clamping method for electronic parking, and the method includes:

[0051] S110. Real-time monitoring of the brake disc temperature according to the preset brake disc temperature rise model;

[0052] Specifically, this step includes: collecting the current ambient temperature of the vehicle in real time, obtaining a brake disc temperature rise model corresponding to the ambient temperature according to the ambient temperature, and obtaining a brake disc temperature rise model corresponding to the ambient temperature; The brake disc temperature rise model monitors the brake disc temperature in real time.

[0053] Because the temperature of the brake disc of the vehicle changes differently under different ambient temperatures, for example, the temperature of the brake disc varies greatly between winter and summer. The temperature rise model of the moving plate. In this embodiment, the pre-stored ...

Embodiment 2

[0075] Such as image 3 As shown, this embodiment discloses another electronic parking high-temperature re-clamping method, which includes:

[0076] S210. Monitor the brake disc temperature in real time according to the preset brake disc temperature rise model;

[0077] S220. When the temperature of the brake disc reaches a preset temperature value for entering the high-temperature re-clamp mode, detect the parking state of the vehicle;

[0078] S230. When the vehicle is in the parking state, detect the variation of the brake disc temperature according to the preset brake disc temperature drop model;

[0079] For the specific process of steps S210-S230, please refer to S110-S130, which will not be repeated here.

[0080] S240. When the change in temperature of the brake disc reaches a preset value, delay a preset time, and after the preset time, control the brake disc to perform a high-temperature re-clamping operation on the brake friction lining;

[0081] In this embodime...

Embodiment 3

[0085] Such as Figure 4 and 5 As shown, this embodiment discloses a high-temperature re-clamping system for electronic parking, and the system includes:

[0086] The temperature monitoring module is used to monitor the brake disc temperature in real time according to the preset brake disc temperature rise model;

[0087] Specifically, the temperature monitoring module includes a temperature acquisition module, a temperature rise model acquisition module and a temperature calculation module;

[0088] The temperature collection module is used to collect the current ambient temperature of the vehicle in real time;

[0089] The temperature rise model acquisition module is configured to acquire a brake disc temperature rise model corresponding to the ambient temperature according to the ambient temperature;

[0090] The temperature calculation module is used to calculate the brake disc temperature in real time according to the brake disc temperature rise model corresponding to ...

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Abstract

The invention provides an electronic parking high-temperature re-clamping method and system. The method comprises the steps that according to a preset brake disc temperature increase model, the temperature of the brake disc is monitored in real time, when the temperature of the brake disc reaches a preset temperature value needed when a high-temperature re-clamping mode is entered, an automobile is in the parking state, according to a preset brake disc temperature descend model, the temperature change amount of the brake disc is detected, when the temperature change amount of the brake disc reaches a preset value, the high-temperature re-clamping operation is executed till the high-temperature re-clamping operation continues to be executed for a preset period of time or the temperature ofthe brake disc is lowered to a preset temperature value needed when the high-temperature re-clamping mode is quitted, and the high-temperature re-clamping operation is not executed. The system comprises a temperature monitoring module, a parking state detecting module, a temperature change amount detecting module, a parking execution module and a parking brake control module. The problems that after high-temperature parking is performed, due to the fact that a friction plate and the brake disc are gradually cooled, clamping force between the friction plate and the brake disc is not large enough, and an automobile slides a slope can be solved.

Description

technical field [0001] The invention relates to the technical field of vehicle automatic control, in particular to a high-temperature re-clamping method and system for electronic parking. Background technique [0002] At present, with the rapid development of electronic technology, cars are becoming more and more intelligent. The electronic parking brake (Electrical Park Brake, EPB) system has gradually replaced the traditional mechanical handbrake function. The electronic parking brake system refers to temporary braking during driving and long-term braking after parking. The functions are integrated together, and the parking brake technology is realized by electronic control. [0003] During the braking process of the vehicle, due to the heat generated by the friction between the friction lining and the brake disc, the friction lining and the brake disc expand when heated. When the vehicle passes down a long and long slope, the temperature of the friction lining and the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/12
CPCB60T7/12
Inventor 陈陈汤小生
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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