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Fault diagnosis system and method

A fault diagnosis system and fault technology, applied in the direction of instruments, measuring devices, measuring electricity, etc., can solve the problems of the reduction of test points of the electronic control system, the difficulty of fault detection, and the reduction of detection efficiency.

Active Publication Date: 2010-06-30
SANY HEAVY IND CO LTD (CN)
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  • Abstract
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Problems solved by technology

[0007] However, since the electric control system test points of vehicles using wire harnesses are reduced, or even have no test points at all, and the lines are all in the insulating sheath, the numbers of the lines are hidden, which brings a lot of difficulties to the maintenance of the lines. On the one hand, even if the number of the line can be obtained, due to the small internal space of the inner harness connector and the outer harness connector, it brings great difficulties to fault detection and reduces the detection efficiency

Method used

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Embodiment Construction

[0035] The core of the present invention is to provide a fault diagnosis system for detecting faults of a wire harness vehicle, which can realize convenient and efficient fault diagnosis of a wire harness electric control system of a wire harness vehicle.

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Please refer to figure 1 , figure 1 It is a structural schematic diagram of a fault diagnosis system for detecting faults in the electronic control system of a wiring harness vehicle provided by a specific embodiment of the present invention.

[0038] like figure 1As shown, the fault diagnosis system provided by the present invention for detecting faults in the electric control system of a wiring harness vehicle includes a connection device 1, a detection device 2, a con...

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Abstract

The invention discloses a fault diagnosis system, which is used for detecting the fault of a wiring harness vehicle; the fault diagnosis system comprises a connecting device (1), a detecting device (2), a controlling device (3) and an output device (4); the connecting device (1) is connected with the detecting device (2) and a tested wiring harness (9) of the wiring harness vehicle; each line state of the tested wiring harness (9) is detected by the detecting device (2); a detecting signal is received by the controlling device (3) and is compared with a pre-stored standard of the tested wiring harness (9) by the controlling device to judge the state of the tested wiring harness (9); the state of the tested wiring harness (9) is output by the output device (4). The connection of a wiring harness and the detecting device (2) can be conveniently realized by the fault diagnosis system in the invention, the pre-stored standard in the controlling device (3) is corresponding to each line of the tested wiring harness (9), thereby conveniently realizing the detection of an electronic control system of the wiring harness vehicle and improving the detection efficiency. The invention further discloses a fault diagnosis method.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a fault diagnosis system for vehicles with standard wiring harnesses. Background technique [0002] With the rapid development of my country's economic construction, the performance of construction machinery has been continuously improved. [0003] For the convenience of description, this paper refers to the construction machinery vehicle that connects the various devices in the electric control cabinet with the peripheral electrical components through the general line as the non-wire harness vehicle, and the construction machinery vehicle that connects the various devices in the electric control cabinet and the peripheral electrical components through the wiring harness as the wiring harness vehicle. Among them, the wiring harness refers to the wiring components that are composed of insulating sheaths, terminal blocks, wires and insulating wrapping materials, and connect va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
CPCG01R31/021G01R31/58
Inventor 周翔周继辉吴罕奇彭清祥
Owner SANY HEAVY IND CO LTD (CN)
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