ABS testing bench control system based on CAN bus

Abstract

The invention discloses an ABS test bed monitoring system based on a CAN bus, which consists of five modules, including a travel control module, an elevating platform control module, a torque control module, a speed collecting module and a normal brake detecting module. All the modules are mutually independent, parallelly connected on the CAN bus and connected with a principal computer through the CAN bus, and the principal computer is responsible for monitoring each subordinate computer module, issuing instructions to each module, receiving and processing detected data that is transmitted by each module, and displaying data information and waveform. Each module executes the instructions of the principal computer and sends the detected data to the principal computer. A CAN interface circuit is responsible for the serial communication among each node. The ABS test bed monitoring system realizes automated operations and provides system reliability.

Description

technical field [0001] The invention belongs to the technical field of automobile ABS braking performance detection, in particular to a CAN bus-based ABS test bench measurement and control system. Background technique [0002] At present, there are two methods to detect and evaluate the braking performance of ABS after loading: road test method and vehicle bench test method. [0003] The road test method measures and records the wheel speed, vehicle speed, deceleration, pedal force and pipeline pressure of the vehicle through on-board measuring instruments and data processing recorders, and then calculates some technical indicators to evaluate the performance of ABS. Although this method can To test the braking performance of vehicles equipped with ABS comprehensively on various road surfaces, but the cost of the experiment is high, the cycle is long, the accuracy is low, and it is greatly affected by the environment and road conditions. The existing bench testing in my cou...

AI Technical Summary

Problems solved by technology

[0003] The road test method measures and records the wheel speed, vehicle speed, deceleration, pedal force and pipeline pressure of the vehicle through on-board measuring instruments and data processing recorders, and then calculates some technical indicators to evaluate the performance of ABS. Although this method can More comprehensively test the braking performance of vehicles equipped with ABS on various road surfaces, but the cost of the experiment is high, the cycle is long, the accuracy is low, and it is greatly affected by the environment and road conditions

The existing bench testing in my country is mainly based on the reaction force braking force testing bench and the flat braking force testing bench, but these two test benches can only test the braking performance of the car at low speed, and cannot detect the braking performance of the vehicle above a certain speed. Braking performance of car ABS that only works

At the same time, the complete sets of ABS test benches produced abroad are expensive and not suitable for my country's current national conditions.

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