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Estimation method of electric caliper brake clearance

A technology of brake clearance and electric caliper, applied in the direction of brake, brake safety system, brake transmission device, etc., to achieve the effect of reducing drag torque, accurate estimation and improving economy

Active Publication Date: 2020-12-08
SHANGHAI HUIZHONG AUTOMOTIVE MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a method for estimating the brake clearance of the electric caliper in order to overcome the defects of adjusting the brake clearance of the electric caliper in the prior art and reducing the drag moment of the vehicle during driving

Method used

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  • Estimation method of electric caliper brake clearance
  • Estimation method of electric caliper brake clearance

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Embodiment Construction

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0063] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same numbers will be used throughout the drawings to refer to the same or like parts.

[0064] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the description of the present invention may be selected by the applicant according to his or her judgment, and the detailed meanings thereof are set forth herein described in the relevant section of the description. ...

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Abstract

The invention provides a brake clearance estimation method for an electric caliper, which comprises the following steps that S1, an EPB electronic parking brake system is controlled to normally work in a corresponding environment; S2, an operator sends a clamping or releasing control signal to an EPB electronic parking brake system controller through an EPB electronic parking brake system key, ancontroller judges whether the current control requirement is met or not according to received external information, and the control process is achieved; in the control execution process, the estimation model of the motor rotating speed performs estimation in real time, the release gap of the electric calipers is calculated in real time, and accurate control is achieved; and S3, ending, and stopping monitoring are performed. In the motor starting process, the internal resistance of the motor is estimated by utilizing the voltage and current of the motor, so that the current working environmenttemperature of the motor can be identified. An estimation model of a motor is corrected, so that the estimation of electric caliper rotating speed is more accurate.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method for estimating the brake gap of an electric caliper. Background technique [0002] With the development of automobile intelligence, the application of electronic parking brake (EPB) system is more and more extensive. When EPB came out, it was mainly equipped with B-class and above models. With the maturity of EPB technology, many domestic brake manufacturers have developed EPBs have been released, and some have been mass-produced, so that EPBs are quickly promoted to A-class cars, and even A0-class cars. EPBs are becoming more and more popular. [0003] In recent years, automobiles are developing toward intelligence and networking. EPB (Electronic Park Brake) electronic parking brake system is an electronic product that has been developed and successfully applied from the pure mechanical brake to the electronic control direction of the chassis brake system, replacing the trad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22B60T13/74
CPCB60T13/74B60T17/22
Inventor 马文涛游祥
Owner SHANGHAI HUIZHONG AUTOMOTIVE MFG
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