Sensor system with fault diagnosis function

A fault diagnosis and sensor technology, applied in the direction of instruments, etc., can solve problems such as many connection points, difficult troubleshooting of wiring harness problems, and long time consumption, and achieve the effect of reducing maintenance costs, improving maintenance efficiency and accuracy

Pending Publication Date: 2021-07-09
DONGFENG LIUZHOU MOTOR
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  • Abstract
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  • Claims
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Problems solved by technology

After the above-mentioned faulty parts are returned to the original factory, the fault of a single component cannot be reproduced, and the root cause of the fault cannot be identified, and the misjudgment rate reaches 80%.
[0003] The existing sensor system failure problem is relatively complicated, especially because there are many lines and connection points in the whole vehicle, it is difficult and time-consuming to troubleshoot the wiring harness of the sensor system

Method used

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  • Sensor system with fault diagnosis function

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] See figure 1 , an embodiment of the present invention provides a sensor system with a fault diagnosis function, including a combination meter assembly, a sensor assembly, an on-board diagnostic instrument, and a TBOX;

[0018] A diagnostic circuit is arranged in the combination instrument assembly, and the diagnostic circuit is used for real-time monitoring of the line connection status of the sensor assembly;

[0019] The combination instrument assembly is c...

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Abstract

The invention provides a sensor system with a fault diagnosis function. The sensor system comprises a combination instrument assembly, a sensor assembly, a vehicle-mounted diagnosis instrument and a TBOX; a diagnosis circuit is arranged in the combination instrument assembly, and the diagnosis circuit is used for monitoring the line connection state of the sensor assembly in real time; and the combination instrument assembly is configured to broadcast fault information diagnosed based on a monitoring signal of the diagnosis circuit to the TBOX and the vehicle-mounted diagnosis instrument through a whole vehicle CAN line. The fault information of the sensor system can be quickly and accurately diagnosed, the maintenance cost of a user is reduced, and the maintenance efficiency and the maintenance accuracy are improved.

Description

technical field [0001] The invention relates to the technical field of fault diagnosis, in particular to a sensor system with fault diagnosis function. Background technique [0002] When the after-sales feedback is inaccurate or faulty on the speedometer, fuel gauge, and air pressure gauge of the combination instrument, the after-sales usually solves the problem for a short time by replacing the combination instrument assembly, odometer sensor, fuel sensor assembly, and air pressure sensor assembly. Sexually resolved, the failure recurred shortly after. After the above-mentioned faulty parts are returned to the original factory, the fault of a single component cannot be reproduced, and the root cause of the fault cannot be identified, and the misjudgment rate reaches 80%. [0003] The existing sensor system failure problem is relatively complicated, especially because there are many lines and connection points in the whole vehicle, which makes it difficult and time-consumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 申国栋陈子邮温伟峰李育方王善超林朝安邓莉婷蓝秋玲
Owner DONGFENG LIUZHOU MOTOR
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