Freeze-frame reading method based on CANape tool

A freeze frame and tool technology, applied in the direction of instruments, electrical testing/monitoring, control/regulation systems, etc., can solve the problems of complicated and inconvenient analysis process steps, and achieve the effect of improving reading efficiency and accuracy, and convenient operation.

Active Publication Date: 2020-02-28
SHENGRUI TRANSMISSION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor finds that the prior art has at least the following deficiencies: the existing frozen frame reading method requires the cooperation of multiple softwares, involves the use of the CANape interface and the query of multiple files, such as figure 1 As shown, the steps of the analysis process are cumbersome and complicated, and more diagnostic knowledge is required, which brings inconvenience to the freeze frame reading work

Method used

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  • Freeze-frame reading method based on CANape tool
  • Freeze-frame reading method based on CANape tool
  • Freeze-frame reading method based on CANape tool

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Embodiment Construction

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that the following does not constitute a limitation to the protection scope of the present invention.

[0031] Examples such as figure 2 , image 3 As shown, a freeze frame reading method based on CANape tool, the method is based on the following parts: CAN signal acquisition equipment, PC (with CANape software installed), freeze frame reading script.

[0032] The CAN signal acquisition device is used to connect the TCU to the PC; the freeze frame reading script is used to obtain the faults stored in the freeze frame of the TCU in real time, realize the analysis of each signal in the freeze frame of the fault code, and calibrate each signal.

[0033] A kind of freeze frame reading method based o...

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Abstract

The invention discloses a freeze-frame reading method based on a CANape tool. The freeze-frame reading method includes configuring a project, and connecting to a TCU (transmission control unit); selecting a fault code table, importing the fault code table, and reading a fault code; selecting a to-be-analyzed fault; reading stored freeze frame data of the fault code, and analyzing the freeze framedata; analyzing location and cause of the fault; and analyzing other fault needs. The freeze-frame reading method based on the CANape tool has the advantages that the method is developed under the support of a CANape scripting language, operations are conveniently performed through windows, menus, buttons and the like, and accordingly, the freeze-frame reading efficiency and accuracy are improved.

Description

technical field [0001] The invention belongs to the technical field of automatic gearbox control, and in particular relates to a method for reading freeze frames based on a CANape tool. Background technique [0002] The automatic transmission control unit TCU will record fault codes and freeze frames during the working process. When reading the freeze frames, engineers need to analyze the freeze frame signals into signals with specific physical meanings for different fault codes (such as current gear, vehicle speed, Transmission oil temperature, etc.), so as to determine the technical condition of the transmission and find out the fault location and cause without disassembly. [0003] Traditional freeze frame reading process: first, clarify the fault code, including the code corresponding to the fault and the definition in the software; second, establish a connection with the TCU, and use the fixed interface and fixed service settings to read the fault code of the freeze fra...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0275
Inventor 邱兵杨涛
Owner SHENGRUI TRANSMISSION
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