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ABS control system based on automobile brake test bed

A control system and automobile braking technology, applied in the mechanical field, can solve the problems of inability to determine the influence of ABS, excluding ABS, etc., and achieve the effect of accurate and reliable measurement results

Inactive Publication Date: 2017-06-20
李晓波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ABS plays an important role in shortening the braking distance of automobiles, ABS is usually not included in the traditional automobile brake component durability test bench, so it is impossible to determine the impact of ABS on other braking components

Method used

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  • ABS control system based on automobile brake test bed
  • ABS control system based on automobile brake test bed

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with drawings and embodiments.

[0016] like figure 1 , The MCU of the control system chooses PIC18F2580 of PIC series. PIC18F2580 integrates CAN controller module and PWM module on the chip, which can reduce the number of chips on the circuit board and simplify programming.

[0017] The control system uses Freescale's high-end driver chip MC33289 to drive the hydraulic solenoid valve. This chip is mainly used in the automotive field to drive solenoid valves and other typical inductive loads. This device contains two power output switches in the same surface mount package, which can Directly interface with PIC18F2580 for input control and output diagnostic monitoring. Each output peak current is 5A, has independent over-current, over-voltage diagnosis and protection, and has over-temperature shutdown performance.

[0018] The DC motor speed regulation module of the control system uses LMD18200 of NI ...

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Abstract

An ABS control system based on an automobile brake test bench, with a single-chip microcomputer as the core, is composed of a CAN communication module, a DC motor speed control module and a hydraulic solenoid valve drive module. The system uses a single-chip microcomputer to control the on-off of the solenoid valve of the ABS actuator, and uses CAN bus for real-time communication, so that the upper computer can display the current working status of the braking system in time. State, send instructions to the single chip microcomputer, so as to realize further control of the braking process. The PWM pulse width modulation method is used to control the speed of the DC motor, and then control the pressure in the electric pump and brake pipeline.

Description

technical field [0001] The invention relates to an ABS control system based on an automobile brake test bench, which is suitable for the mechanical field. Background technique [0002] Anti-lock braking system (hereinafter referred to as ABS) has been widely used in modern automobiles. During a braking process, ABS switches on and off the brake wheel cylinder inlet solenoid valve and outlet solenoid valve multiple times, so that the slip ratio of the car is in the optimal range, thereby producing the best braking effect. Although ABS plays an important role in shortening the braking distance of automobiles, ABS is usually not included in the durability test bench of traditional automobile braking components, so the influence of ABS on other braking components cannot be determined. Contents of the invention [0003] The present invention proposes an ABS control system based on an automobile brake test bench, which controls the on-off of the solenoid valve of the ABS actuat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G01M17/007
CPCG05B19/042G01M17/007G05B2219/2604
Inventor 李晓波
Owner 李晓波
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