Brake control system and brake control method of split EPB control

By using the split-side EPB control system, utilizing the SBC module and the proprietary CAN module for power detection and data interaction, and integrating the H-bridge drive module, a highly integrated and stable braking control system is achieved in the automotive chassis system. This solves the problems of high cost and insufficient stability in existing technologies and ensures redundant control of the EPB function.

CN117002462BActive Publication Date: 2026-07-21SHANGHAI LEEKR TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI LEEKR TECHNOLOGY CO LTD
Filing Date
2023-09-08
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

How to design a braking control system with higher integration, higher stability and lower cost, especially to achieve split-side control in the automotive chassis system and avoid single-point failure leading to EPB function loss.

Method used

The system employs a split-side EPB control system, which includes a brake-by-wire unit and an EPB control unit. It uses an SBC module for power detection, a proprietary CAN module for data exchange, an integrated H-bridge drive module to control the EPB motor, and switches to redundant control mode when a failure is detected, thus eliminating the independent EPB controller to achieve split-side redundant control.

Benefits of technology

It ensures that the EPB function will not be lost under any single-point failure, reduces the cost of the braking control system, improves the system's integration and stability, and provides more space for chassis control layout.

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  • Figure CN117002462B_ABST
    Figure CN117002462B_ABST
Patent Text Reader

Abstract

The application discloses a kind of brake control systems of side EPB control, including: line brake unit, EPB control unit, EPB switch interface circuit and power end;Line brake unit includes line brake chip, first CAN communication module and first wheel speed interface circuit;EPB control unit includes EPB control chip, second wheel speed interface circuit and second CAN communication module;First power end is electrically connected with first motor drive module by first switch module, and second power end is electrically connected with second motor drive module by second switch module;When detecting that part of device in line brake unit fails, the brake control system controls EPB control unit to enter working state by EPB wake-up port.The power input of the scheme of the application embodiment, power management module, wheel speed input are all realized side redundancy;And line brake chip and EPB control chip control a road motor respectively, and the side control of two sides EPB motor is realized.
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