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Test and diagnosis device for electric control system of hydraulic retarder

A technology of hydraulic retarder and electronic control system, which is applied in the direction of electrical testing/monitoring, etc., can solve the problems that historical faults cannot be read, and achieve the effects of easy analysis and judgment, saving service costs, and low fatigue

Active Publication Date: 2013-10-02
SHAANXI FAST GEAR CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of product can effectively detect problems with external devices and signals, but cannot read historical faults

Method used

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  • Test and diagnosis device for electric control system of hydraulic retarder
  • Test and diagnosis device for electric control system of hydraulic retarder
  • Test and diagnosis device for electric control system of hydraulic retarder

Examples

Experimental program
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Embodiment Construction

[0046] see Figure 1 to Figure 6 As shown, the test and diagnosis device for the electric control system of the hydraulic retarder of the present invention includes a central processing module, a man-machine interface module, a power supply module, an interface module, a signal selection module and a CAN communication module.

[0047] The central processing module is composed of a microprocessor, a general digital input interface, a general digital output interface, an analog input interface, a capture comparator interface, a pulse width modulation interface, a serial communication interface and a CAN interface.

[0048] Interface modules include:

[0049] Analog signal detection unit, switch signal detection unit, switch signal drive unit, vehicle signal processing unit, drive and detection unit.

[0050] The analog signal detection unit is used to detect the physical quantity signal sent by the sensor;

[0051] The switch signal detection unit is used to detect the state o...

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PUM

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Abstract

The invention discloses a test and diagnosis device for an electric control system of a hydraulic retarder. The test and diagnosis device comprises a central processing module, a man-machine interface module, an interface module, a signal selection module and a CAN (controller area network) communication module, wherein the signal selection module is connected with the interface module, the CAN communication module and the central processing module; the interface module and the CAN communication module are both connected with the central processing module; the central processing module is connected with the man-machine interface module; the signal selection module is connected with peripheral devices of a whole-vehicle system and an electronic control device of the hydraulic retarder; and the peripheral devices of the whole-vehicle system comprise a vehicle signal instruction device, a vehicle signal indication device, a CAN bus, a peripheral device executor, a peripheral device instruction device, a peripheral device indication device and a peripheral device sensor. The test and diagnosis device can be used for manually or automatically testing the electric control system of the hydraulic retarder, and has the characteristics of accurate data acquisition and calculation, small error, simplified operation and manpower saving.

Description

【Technical field】 [0001] The invention relates to the technical field of vehicle testing and diagnosis, in particular to a testing and diagnosing device for an electronic control system of a hydraulic retarder. 【Background technique】 [0002] With the improvement of driving safety requirements and the promotion of policies, hydraulic retarder, as a mainstream auxiliary braking technology, will gradually be applied to tourist passenger vehicles, engineering vehicles, heavy-duty transport vehicles and other vehicles. This product can improve driving safety on mountain roads, reduce driving intensity and reduce operating costs. [0003] The deceleration performance of the hydraulic retarder is its most important performance index. The deceleration performance can only be judged subjectively by the driver, and there are some difficulties in obtaining accurate deceleration data. There are three difficulties in the on-site accurate test of the deceleration performance: 1. The dr...

Claims

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Application Information

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IPC IPC(8): G05B23/02
Inventor 马东闯白蒲江王玲利刘义王顺利
Owner SHAANXI FAST GEAR CO
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