Electromagnetic Brake Diagnosis Method, Device, and Electromechanical Brake System

A technology of electromagnetic brake and diagnosis method, applied in the direction of brake control system, brake safety system, brake, etc., can solve problems such as hidden dangers of driving behavior, and achieve the effect of reducing hidden dangers and improving reliability

Active Publication Date: 2022-02-01
HALDEX VIE (SHANGHAI) ELECTROMECHANICAL BRAKE SYST CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current electromechanical braking system has not yet installed a corresponding diagnostic device, and it is impossible to judge whether a fault has occurred in time, which makes daily driving behavior a safety hazard

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electromagnetic Brake Diagnosis Method, Device, and Electromechanical Brake System
  • Electromagnetic Brake Diagnosis Method, Device, and Electromechanical Brake System
  • Electromagnetic Brake Diagnosis Method, Device, and Electromechanical Brake System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] This embodiment provides a diagnostic method, such as figure 1 As shown, the diagnostic methods include:

[0080] 11. Control the conduction state of the high-voltage side switch and low-voltage side switch of the electromagnetic brake;

[0081] 12. When the switch is on and off respectively, obtain the voltage value of the high-voltage side of the electromagnetic brake and the voltage value of the low-voltage side of the electromagnetic brake;

[0082] 13. Determine whether there is a fault based on the level of the obtained voltage value.

[0083] The diagnostic method proposed in this embodiment is used to determine whether there is a fault in the circuit where the electromagnetic brake is located. The conduction of the high-voltage side switch and the low-voltage side switch is controlled based on the preset combination through the control chip, and the conduction of different switches can be obtained. Combination of voltage values.

[0084] Since the fault may c...

Embodiment 2

[0087] This embodiment provides a diagnostic method for diagnosing two possible faults in the working circuit of the electromagnetic brake.

[0088] (1) Determine whether there is a fault on the high-voltage side of the electromagnetic brake;

[0089] (2) Determine whether there is a fault on the low-voltage side of the electromagnetic brake.

[0090] In order to accurately determine the above two faults, two preset switch states are given in this embodiment, corresponding to the above two faults respectively.

[0091] Switching state 1 includes turning on the starting power of the electromagnetic brake, turning off the high-voltage side switch, and turning on the high-voltage side switch after a preset delay;

[0092] The second switching state includes turning on the starting power of the electromagnetic brake, turning on the high-voltage side switch, turning off the low-voltage side switch, and turning on the high-voltage side switch after a preset time delay.

[0093] Fo...

Embodiment 3

[0107] This embodiment provides a diagnostic method, which is different from the second embodiment in that it is used to determine whether there is a fault between the high-voltage side and the low-voltage side of the electromagnetic brake in the working circuit.

[0108] Before judging the above faults, it is also necessary to adjust the preset state of the switch, which corresponds to the switch state 2 in the second embodiment, and the specific content will not be repeated here.

[0109] After the adjustment of the switch is completed, judge the obtained voltage value, such as Figure 4 shown, including:

[0110] 41. When the first voltage value is high level and the second voltage value is low level, obtain the current value flowing through the electromagnetic brake;

[0111] 42. If the current value is higher than the preset current upper limit threshold, it is determined that there is a short-circuit fault between the high-voltage side and the low-voltage side of the el...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a diagnostic method, device and electromechanical braking system of an electromagnetic brake, which belong to the technical field of braking, including: controlling the conduction states of the high-voltage side switch and the low-voltage side switch of the electromagnetic brake; when the switches are respectively in conduction 1. In the disconnected state, obtain the voltage value of the high-voltage side of the electromagnetic brake and the voltage value of the low-voltage side of the electromagnetic brake; determine whether there is a fault based on the level of the obtained voltage value. By controlling the on-off of the high-voltage side switch and the low-voltage side switch set at the electromagnetic brake, the voltage value when the high-voltage side switch is turned on and the low-voltage side switch is turned on is obtained, and then the electromagnetic brake is determined according to the specific change of the voltage value. Or whether there is a fault in the circuit, so as to improve the reliability of the brake and reduce the existence of hidden dangers.

Description

technical field [0001] The invention belongs to the technical field of braking, and in particular relates to a diagnosis method and device of an electromagnetic brake and an electromechanical braking system. Background technique [0002] With the development of electronic technology and the improvement of vehicle intelligence, the electromechanical brake system (Electromechanical Brake, EMB) with relatively simple structure, relatively reliable performance, and higher functional integration has gradually begun to replace traditional hydraulic or pneumatic brakes and become the future The development direction of vehicle braking technology. [0003] The electromechanical braking system includes an electromagnetic brake that locks the motor during parking or service braking where braking force is required. For safety reasons, it is necessary to diagnose the electromagnetic brake and its circuit, especially to prevent the occurrence of failures that lead to brake failure. [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22
CPCB60T17/22B60T8/885B60T13/662B60T2270/406
Inventor 董显斌费宜波
Owner HALDEX VIE (SHANGHAI) ELECTROMECHANICAL BRAKE SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap