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OBD device and system used for automobile fault diagnosis

A technology for vehicle failure and data interaction, applied in electrical testing/monitoring, etc., can solve problems such as poor operability and difficulty in upgrading OBD devices, and achieve the effects of pollution reduction, green environmental protection concept, convenient portability and operation

Pending Publication Date: 2018-01-19
CHINA AUTOMOTIVE TECH & RES CENT
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Aiming at the technical problems of difficult upgrade and poor operability of OBD devices in the prior art, the present invention provides an OBD device and system for automobile fault diagnosis, which can achieve OBD automatic upgrade and update, and detect whether the downloaded program matches , at the same time wireless operation is convenient to carry and operate the beneficial effect

Method used

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  • OBD device and system used for automobile fault diagnosis
  • OBD device and system used for automobile fault diagnosis
  • OBD device and system used for automobile fault diagnosis

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] The embodiment of the present invention discloses an OBD device and system for automobile fault diagnosis. As shown in the figure, an OBD device for automobile fault diagnosis includes a central processing unit, a CAN data interaction module, and a K-line data interaction module. module and wireless communication module; the central processing unit is respectively connected with CAN data interaction module, K-line data interaction module and wireless communication module.

[0018] In this embodiment, the wireless communication module includes one or any combination of bluetooth, wifi, GPRS, 3G and 4G.

[0019] An OBD system for automobile fault diagnosis, including OBD socket, OBD device, handheld device and remote service ...

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Abstract

The invention discloses an OBD device and a system for the automobile fault diagnosis. A central processor is respectively in signal connection with a CAN data interaction module, a K-line data interaction module and a wireless communication module. The OBD device is connected with an OBD socket through a data transmission function unit. The OBD device is in signal connection with handheld equipment through a wireless network. The handheld equipment is in signal connection with a remote service platform through a wireless network. According to the invention, the OBD automatic upgrading and updating function can be achieved. Meanwhile, whether downloaded programs are matched or not can be detected. Moreover, the device is convenient in wireless operation and convenient to carry about.

Description

technical field [0001] The invention belongs to the technical field of automobile fault diagnosis, in particular to an OBD device and system for automobile fault diagnosis. Background technique [0002] With the aggravation of energy crisis and environmental pollution, people have higher and higher requirements on automobile economy and exhaust emission. In order to maximize the optimization of the vehicle's power, economy and emission performance, electronic control technology must be used. The fault diagnosis system is an important part of the electronic control system. It can monitor the working conditions of the whole vehicle and various components in real time, find and report abnormalities, and store the fault information in the electronic control unit. It can read fault information and real-time vehicle emission information, etc. [0003] With the development of Internet of Vehicles technology, the inventor found that there are at least the following shortcomings an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 李孟良沈姝
Owner CHINA AUTOMOTIVE TECH & RES CENT
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