CN113091792A - Sensor system with fault diagnosis function - Google Patents
Sensor system with fault diagnosis function Download PDFInfo
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- CN113091792A CN113091792A CN202110207822.7A CN202110207822A CN113091792A CN 113091792 A CN113091792 A CN 113091792A CN 202110207822 A CN202110207822 A CN 202110207822A CN 113091792 A CN113091792 A CN 113091792A
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- assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The invention provides a sensor system with a fault diagnosis function, which comprises a combination instrument assembly, a sensor assembly, a vehicle-mounted diagnostic instrument and a TBOX (tunnel boring machine); a diagnosis circuit is arranged in the combination instrument assembly and used for monitoring the line connection state of the sensor assembly in real time; the cluster tool assembly is configured to: and broadcasting fault information diagnosed based on the monitoring signal of the diagnostic circuit to the TBOX and the vehicle-mounted diagnostic instrument through a vehicle CAN line. The invention can quickly and accurately diagnose the fault information of the sensor system, is beneficial to reducing the maintenance cost of a user and improving the maintenance efficiency and the maintenance accuracy.
Description
Technical Field
The invention relates to the technical field of fault diagnosis, in particular to a sensor system with a fault diagnosis function.
Background
When the problems of inaccuracy of the speedometer, the fuel gauge and the air pressure gauge of the after-sale feedback combination meter or faults occur, the problems are solved transiently after the after-sale feedback combination meter is usually replaced by the combination meter assembly, the odometer sensor, the fuel quantity sensor assembly, the air pressure sensor assembly and other components, and the faults recur after a while. After the fault part returns to the original factory, the fault of a single part cannot be reproduced, the root cause of the fault cannot be locked, and the misjudgment rate reaches 80%.
The existing sensor system has the defects of complex fault problem, and particularly, the difficulty in troubleshooting the wire harness problem of the sensor system is high and the consumed time is long due to the fact that the number of lines and connection points of the whole vehicle is large.
Disclosure of Invention
The invention aims to provide a sensor system with a fault diagnosis function, so as to solve the technical problems, quickly and accurately diagnose the fault information of the sensor system, and be beneficial to reducing the maintenance cost of a user and improving the maintenance efficiency and the maintenance accuracy.
In order to solve the technical problem, the invention provides a sensor system with a fault diagnosis function, which comprises a combination instrument assembly, a sensor assembly, a vehicle-mounted diagnostic instrument and a TBOX;
a diagnosis circuit is arranged in the combination instrument assembly and used for monitoring the line connection state of the sensor assembly in real time;
the cluster tool assembly is configured to: and broadcasting fault information diagnosed based on the monitoring signal of the diagnostic circuit to the TBOX and the vehicle-mounted diagnostic instrument through a vehicle CAN line.
Further, the system further comprises a vehicle networking platform, the TBOX is used for sending the received fault information to the vehicle networking platform, and the vehicle networking platform is used for recording and storing the received fault information.
Further, the system further comprises a mobile terminal, and the car networking platform is further used for pushing the fault information to the mobile terminal through the internet.
Furthermore, the combination instrument assembly also comprises an alarm device, wherein the alarm device comprises a sound alarm device and a display alarm device; the cluster tool assembly is further configured to: and alarming the diagnosed fault information through the alarm module.
Further, the sensor assembly comprises one or more of an odometer sensor assembly, a fuel level sensor assembly and a gas pressure sensor assembly.
Further, the line connection state of the sensor assembly includes one or more of a power line connection state, a signal line connection state and a ground line connection state.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a sensor system with a fault diagnosis function, which comprises a combination instrument assembly, a sensor assembly, a vehicle-mounted diagnostic instrument and a TBOX (tunnel boring machine); a diagnosis circuit is arranged in the combination instrument assembly and used for monitoring the line connection state of the sensor assembly in real time; the cluster tool assembly is configured to: and broadcasting fault information diagnosed based on the monitoring signal of the diagnostic circuit to the TBOX and the vehicle-mounted diagnostic instrument through a vehicle CAN line. The invention can quickly and accurately diagnose the fault information of the sensor system, is beneficial to reducing the maintenance cost of a user and improving the maintenance efficiency and the maintenance accuracy.
Drawings
Fig. 1 is a schematic structural diagram of a sensor system with a fault diagnosis function according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a sensor system with a fault diagnosis function, including a combination meter assembly, a sensor assembly, a vehicle-mounted diagnostic apparatus, and a TBOX;
a diagnosis circuit is arranged in the combination instrument assembly and used for monitoring the line connection state of the sensor assembly in real time;
the cluster tool assembly is configured to: and broadcasting fault information diagnosed based on the monitoring signal of the diagnostic circuit to the TBOX and the vehicle-mounted diagnostic instrument through a vehicle CAN line.
In the embodiment of the present invention, further, the system further includes a vehicle networking platform, the TBOX is configured to send the received fault information to the vehicle networking platform, and the vehicle networking platform is configured to record and store the received fault information.
In the embodiment of the invention, the system further comprises a mobile terminal, and the car networking platform is also used for pushing the fault information to the mobile terminal through the internet.
In the embodiment of the invention, further, the combination instrument assembly further comprises an alarm device, wherein the alarm device comprises a sound alarm device and a display alarm device; the cluster tool assembly is further configured to: and alarming the diagnosed fault information through the alarm module.
In an embodiment of the present invention, further, the sensor assembly includes one or more of an odometer sensor assembly, a fuel quantity sensor assembly, and a barometric pressure sensor assembly.
In an embodiment of the present invention, further, the line connection state of the sensor assembly includes one or more of a power line connection state, a signal line connection state, and a ground line connection state.
In the embodiment of the invention, TBOX refers to a vehicle networking system, which is called Telematics BOX; CAN refers to a Controller Area Network (CAN).
Based on the above scheme, the following detailed description of the embodiments of the present invention:
1. the system comprises the following components: the sensor system with the fault diagnosis function provided by the embodiment of the invention mainly comprises a combination meter assembly, an odometer sensor assembly, an oil mass sensor assembly, an air pressure sensor assembly, a TBOX (tunnel boring machine), a vehicle networking platform, a vehicle-mounted diagnosis instrument, a mobile terminal (mobile phone APP) and the like. A system block diagram is shown in fig. 1.
2. Basic diagnostic principle of the system: a diagnosis circuit is designed in the combination instrument assembly, and real-time diagnosis is carried out on the fault modes of the line connection of the odometer sensor assembly, the oil quantity sensor assembly and the air pressure sensor assembly.
3. Basic diagnostic functions of the system:
and 3.1, when the combined instrument diagnoses the corresponding sensor fault information according to the monitoring signal of the diagnosis circuit, alarming is carried out on the combined instrument to remind a user of the current system fault information, and meanwhile, the current fault information is broadcasted through the whole vehicle CAN line in the form of fault codes.
And 3.2, after the TBOX acquires the fault information sent by the combination instrument through the CAN line, the vehicle fault information is issued to the vehicle networking platform, and the vehicle networking platform records and stores the fault information in real time. Meanwhile, the Internet of vehicles platform transmits the fault information to the mobile phone APP through the Internet and pushes the fault information to the user, and the user is reminded of the current fault information of the system, so that the user is reminded of going to a 4S shop for overhauling as early as possible.
3.3, 4S shop maintenance personal can look over the current trouble of vehicle through any one kind of equipment in combination meter display module, on-vehicle diagnostic equipment or user' S cell-phone APP, can lock to current fault information reason fast to overhaul to the trouble.
3.4, the main failure modes diagnosed by the system are as follows:
3.4.1 the Vcc end of the power line of the sensor is open;
3.4.2 sensor power line Vcc terminal voltage is too high;
3.4.3 the terminal voltage of the power line Vcc of the sensor is too low or short-circuited to the ground GND terminal;
3.4.4 the Vcc end of the power line of the sensor is short-circuited to the Vout end of the signal line;
3.4.5 the GND end of the sensor ground wire is open;
3.4.6 the voltage of the ground wire GND end of the sensor is too high or is short-circuited to the power wire Vcc end;
3.4.7 the ground wire GND end of the sensor is short-circuited with the signal wire Vout end;
3.4.8 sensor signal line Vout end signal line open circuit;
3.4.9 the voltage of sensor signal line Vout is too high or short-circuited to power line Vcc;
3.4.10 the sensor signal line Vout terminal voltage is too low or short-circuited to the power supply line GND terminal.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
1. the current fault information of the system is quickly locked, and the system is maintained aiming at the fault, so that the maintenance time is shortened by over 80 percent, and the maintenance cost of a user is reduced;
2. the misjudgment rate of the after-sale fault pieces is reduced to be lower than 10%, the three-pack claims after sale are reduced, and the maintenance cost of a user is reduced.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (6)
1. A sensor system with a fault diagnosis function is characterized by comprising a combination instrument assembly, a sensor assembly, a vehicle-mounted diagnostic instrument and a TBOX;
a diagnosis circuit is arranged in the combination instrument assembly and used for monitoring the line connection state of the sensor assembly in real time;
the cluster tool assembly is configured to: and broadcasting fault information diagnosed based on the monitoring signal of the diagnostic circuit to the TBOX and the vehicle-mounted diagnostic instrument through a vehicle CAN line.
2. The sensor system with fault diagnosis function of claim 1, characterized in that the system further comprises a vehicle networking platform, wherein the TBOX is used for sending the received fault information to the vehicle networking platform, and the vehicle networking platform is used for recording and saving the received fault information.
3. The sensor system with fault diagnosis function of claim 2, wherein the system further comprises a mobile terminal, and the vehicle networking platform is further configured to push fault information to the mobile terminal through the internet.
4. The sensor system with a failure diagnosis function according to claim 1, wherein the cluster tool assembly further comprises an alarm device, the alarm device comprising an acoustic alarm device and a display alarm device; the cluster tool assembly is further configured to: and alarming the diagnosed fault information through the alarm module.
5. The sensor system with fault diagnosis functionality according to any of claims 1-4, wherein the sensor assembly comprises one or more of an odometer sensor assembly, an oil volume sensor assembly, a gas pressure sensor assembly.
6. The sensor system with a fault diagnosis function according to claim 5, wherein the line connection state of the sensor assembly includes one or more of a power line connection state, a signal line connection state, and a ground line connection state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207822.7A CN113091792A (en) | 2021-02-24 | 2021-02-24 | Sensor system with fault diagnosis function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207822.7A CN113091792A (en) | 2021-02-24 | 2021-02-24 | Sensor system with fault diagnosis function |
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| CN113091792A true CN113091792A (en) | 2021-07-09 |
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Citations (6)
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| US20080161989A1 (en) * | 1995-06-07 | 2008-07-03 | Automotive Technologies International, Inc. | Vehicle Diagnostic or Prognostic Message Transmission Systems and Methods |
| CN101434221A (en) * | 2007-11-13 | 2009-05-20 | 尤博科技株式会社 | Vehicle fault diagnosis equipment |
| CN101850723A (en) * | 2010-04-30 | 2010-10-06 | 锦州海伯伦汽车电子有限公司 | Fault detecting and processing method for current sensor of motor control unit of electric automobile |
| CN102087345A (en) * | 2010-11-25 | 2011-06-08 | 奇瑞汽车股份有限公司 | Fault diagnosis control method of battery current sensor |
| CN105620288A (en) * | 2016-03-11 | 2016-06-01 | 中国北方车辆研究所 | Vehicle separation instrument based information system |
| CN207369062U (en) * | 2017-07-07 | 2018-05-15 | 绿驰汽车科技（上海）有限公司 | A kind of vehicle safety performance monitoring system based on wechat public service number |
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2021
- 2021-02-24 CN CN202110207822.7A patent/CN113091792A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080161989A1 (en) * | 1995-06-07 | 2008-07-03 | Automotive Technologies International, Inc. | Vehicle Diagnostic or Prognostic Message Transmission Systems and Methods |
| CN101434221A (en) * | 2007-11-13 | 2009-05-20 | 尤博科技株式会社 | Vehicle fault diagnosis equipment |
| CN101850723A (en) * | 2010-04-30 | 2010-10-06 | 锦州海伯伦汽车电子有限公司 | Fault detecting and processing method for current sensor of motor control unit of electric automobile |
| CN102087345A (en) * | 2010-11-25 | 2011-06-08 | 奇瑞汽车股份有限公司 | Fault diagnosis control method of battery current sensor |
| CN105620288A (en) * | 2016-03-11 | 2016-06-01 | 中国北方车辆研究所 | Vehicle separation instrument based information system |
| CN207369062U (en) * | 2017-07-07 | 2018-05-15 | 绿驰汽车科技（上海）有限公司 | A kind of vehicle safety performance monitoring system based on wechat public service number |
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