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Acquisition method, transmission method and acquisition device for vehicle electronic control unit data

An electronic control unit and acquisition method technology, which is applied in the automotive field, can solve the problems of complex methods and low efficiency, and achieve the effect of simple method, high acquisition efficiency and low cost

Inactive Publication Date: 2021-10-01
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is an acquisition method, transmission method and acquisition device of vehicle electronic control unit data, which solves the problem that the method for obtaining vehicle electronic control unit data in the prior art is relatively complicated and has low efficiency

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  • Acquisition method, transmission method and acquisition device for vehicle electronic control unit data
  • Acquisition method, transmission method and acquisition device for vehicle electronic control unit data
  • Acquisition method, transmission method and acquisition device for vehicle electronic control unit data

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Embodiment Construction

[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0037] like figure 1 As shown, the embodiment of the present invention proposes a method for acquiring data of a vehicle electronic control unit, which is applied to a diagnostic instrument with a near-field communication NFC function, and the method includes:

[0038] S1. The diagnostic instrument sends an authentication request to the OBD interface of the on-board automatic diagnostic system in a wireless manner;

[0039] S2. If...

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Abstract

An embodiment of the invention provides an acquisition method, a transmission method and an acquisition device for vehicle electronic control unit data. The acquisition method is applied to a diagnostic apparatus with a near field communication (NFC) function, and comprises the following steps that: the diagnostic apparatus sends an authentication request to an on-board diagnostics (OBD) interface in a wireless mode; and if the diagnostic apparatus receives an authentication success response fed back by the OBD interface, the diagnostic apparatus receives the decrypted vehicle electronic control unit data through the OBD interface. According to the method, the whole vehicle can achieve the decryption function without damaging the whole vehicle wire harness, the whole vehicle decryption function is achieved through information interaction between the external diagnostic apparatus with the NFC function and the OBD interface, workers in a 4S shop or a factory can judge the whole vehicle fault and obtain the key information of the vehicle, and the method has the advantages of being simple, low in cost and high in electric control unit data acquisition efficiency.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an acquisition method, a transmission method and an acquisition device for vehicle electronic control unit data. Background technique [0002] The OBD interface of the on-board automatic diagnosis system is the communication interface of the on-board monitoring system. In addition to reading the fault code for car repair, the primary function is to provide various working condition data of the vehicle and modify the key data of each electronic control unit of the vehicle. It can also control the movement of the car and all the switches of the car. In order to prevent the harm caused by illegal external device intrusion to the whole car, the car manufacturer will set up some encryption programs for the car. The outside world cannot directly establish communication with the whole car or change the whole car. Configuration parameters of each ECU. [0003] However, because the v...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 崔晓静
Owner BEIJING ELECTRIC VEHICLE