Electromechanical brake clamping force estimation method and device, controller, automobile and medium
By using motor rotation angle and current signal to calculate the clamping force of the brake, the problem of high overall size and cost of electromechanical brakes is solved, and smaller size and higher accuracy clamping force estimation are achieved.
CN121316792APending Publication Date: 2026-01-13GUANGZHOU AUTOMOBILE GROUP CO LTD
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Patent Information
- Application Number
- CN202410882315.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2026-01-13
AI Technical Summary
Technical Problem
The built-in sensors in existing electromechanical brakes result in a large overall size, difficult placement, and high cost.
Method used
By acquiring the motor rotation angle and motor current signals of the electromechanical brake, and combining the lead and transmission ratio of the transmission elements, the clamping force of the brake can be calculated, avoiding the use of additional mechanical mechanisms and sensors, and utilizing the characteristics of motor rotation angle and current to calculate the clamping force.
Benefits of technology
The overall size of the electromechanical brake has been reduced, costs have been lowered, the accuracy of clamping force estimation has been improved, and the effects of temperature have been avoided.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of automobiles, in particular to an electronic mechanical brake clamping force estimation method and device, a controller, an automobile and a medium, and aims at solving the technical problems that an existing electronic mechanical brake with a built-in sensor is large in overall size, difficult to arrange and high in single piece cost. The method comprises the following steps: acquiring a motor rotation angle of the electronic mechanical brake; according to the motor rotation angle, the transmission element lead of the electronic mechanical brake and the transmission ratio of the transmission mechanism, the piston movement stroke of the electronic mechanical brake is determined; according to the movement stroke of the piston and a pre-calibrated target corresponding table, the first caliper clamping force of the electronic mechanical brake is determined; an estimated caliper clamping force for the electromechanical brake is determined based on the first caliper clamping force for the electromechanical brake.
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