Device and method for automatically testing ECU software version of heavy-duty car engine

A heavy-duty vehicle, software version technology, applied in the direction of electrical testing/monitoring, etc., can solve the problem of software instability in the engine ECU of heavy-duty vehicles

Inactive Publication Date: 2016-12-07
SHAANXI CCCC TIANJIAN CAR NETWORKING INFORMATION TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the heavy-duty vehicle engine ECU has unlicensed software flashing, causing the heavy-duty vehicle engine ECU to form a software unstable factor

Method used

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  • Device and method for automatically testing ECU software version of heavy-duty car engine
  • Device and method for automatically testing ECU software version of heavy-duty car engine
  • Device and method for automatically testing ECU software version of heavy-duty car engine

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Embodiment Construction

[0045] Now in conjunction with accompanying drawing and specific embodiment the present invention will be further described:

[0046] The device for automatically testing the software version of the heavy-duty vehicle engine ECU is composed of the heavy-duty vehicle engine ECU and the detection terminal, which are connected by two metal wires to form a CAN bus communication system, which constitutes the entire heavy-duty vehicle engine ECU software version device. Heavy-duty vehicle engine ECU includes CPU, CAN bus controller and other auxiliary components such as clock crystal oscillator, power control chip, etc.; detection terminal includes CPU, CAN bus controller and other auxiliary components such as clock crystal oscillator, power control chip, etc. It also includes a human-computer interaction device, the human-computer interaction device includes an interface device for inputting specified parameters, an output display device, and the human-computer interaction device is...

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Abstract

The invention provides a device and method for automatically testing the software version of a heavy-duty car engine ECU, and solves a problem that the unpermitted software flash which happens to the heavy-duty car engine ECU causes an unstable factor. A metal wire is used for connecting a CAN bus controller of the tested heavy-duty car engine ECU and a CAN bus controller of a detection terminal, thereby forming physical connection, and enabling the heavy-duty car engine ECU and the detection terminal to carry out information interaction through a CAN bus. The detection terminal comprises the CAN bus controller, a detection terminal CPU, a man-machine interaction device, a power module and a clock module. The detection terminal is connected with the heavy-duty car engine ECU through a handshake protocol. The heavy-duty car engine ECU returns the detection data comprising the software version number through the CAN bus, and the detection terminal enables the monitoring data returned by the heavy-duty car engine ECU to be imported into a software version logic algorithm unit, so as to detect whether the software version of the heavy-duty car engine ECU is correct and legal or not.

Description

technical field [0001] The invention belongs to the application field of automobile electronics, and in particular relates to a method and a device for automatically testing the ECU software version of a heavy-duty automobile engine. Background technique [0002] At present, the heavy-duty vehicle CAN bus control system products developed in China mainly include three parts: the central controller CU of the vehicle body, the instrument cluster IC and the vehicle body load driver. As the vehicle body central controller of the vehicle body bus gateway, on the one hand, it can realize information exchange and sharing with the electronic control unit of the vehicle powertrain such as the electronically controlled engine and the anti-lock braking system ABS / ASR; By collecting a large number of switch signals including combined light switch, wiper / washer switch, interior light switch and key switch, etc., the control function of the body electrical appliances is realized. In addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 王学军冶少刚曹爵陈少敏
Owner SHAANXI CCCC TIANJIAN CAR NETWORKING INFORMATION TECH CO LTD
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