Commercial vehicle EBS performance test control system

By designing the EBS performance test control system for commercial vehicles and simulating the vehicle environment, the problems of long EBS performance test verification cycle and inability to simulate the vehicle environment in the existing technology are solved, and the performance verification of EBS system is achieved faster and more comprehensive.

CN119847016AActive Publication Date: 2025-04-18XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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Patent Information

Application Number
CN202411835430.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-04-18
Estimated Expiration
2044-12-13

AI Technical Summary

Technical Problem

The EBS performance test of commercial vehicles has a long verification cycle and many test items, which cannot simulate the vehicle environment, resulting in the inability to fully verify the performance of the EBS system.

Method used

Design an EBS performance testing and control system for commercial vehicles, including electrical systems, control systems, measurement systems, upper computers and fault diagnosis systems. It uses Ethercat industrial bus and servo controller to simulate the vehicle environment, including wheel speed, brake pedals, steering wheel and three-axis rotary table, and supports a variety of testing methods and fault diagnosis.

Benefits of technology

It realizes a real simulated vehicle environment, shortens the EBS development verification cycle, is convenient to operate the system, and can verify the performance of the EBS system in multiple aspects, ensuring that the performance test of the EBS system is more comprehensive and efficient.

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Abstract

The invention discloses a commercial vehicle EBS performance test control system which adopts six wheel speed motors to simulate wheels of a vehicle, the wheel speed motors are in spline connection with a code disc, a rotation speed sensor detects the rotation speed of the wheel speed motors and feeds back the rotation speed to an EBS controller, and the speed detection function of an EBS system is detected by giving a wheel speed motor instruction or replacing the code disc with the incomplete tooth number; the brake pedal motor simulates the braking process of a driver, and the pedal force sensor is connected with the brake pedal, detects the braking force and is connected into the EBS controller. An inner frame motor, a middle frame motor and an outer frame motor of a three-axis rotary table motor are adopted to simulate the transverse acceleration, the longitudinal acceleration and the yaw velocity of the whole vehicle respectively, a vehicle body attitude sensor is installed on the inner frame motor, and signals of the vehicle body attitude sensor are connected into an EBS system. According to the invention, the vehicle operation is dynamically simulated, the EBS system is subjected to closed-loop verification, and the vehicle model can be further checked; the fault diagnosis simulates a hardware circuit fault and verifies a fault processing function of the EBS system.
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