Automobile ECU information monitoring system

Abstract

The invention provides an automobile ECU information monitoring system, relates to the technical field of automobile monitoring, and solves the technical problem of monitoring of automobile conditions. The system comprises a vehicle ECU, a vehicle bluetooth module, a vehicle encryption and decryption module, and a mobile terminal, the vehicle ECU is mutually connected with the vehicle encryption and decryption module through an SPI bus, the vehicle encryption and decryption module is mutually connected with the vehicle bluetooth module through a data bus, an airborne microprocessor, an airborne bluetooth module, and an airborne encryption and decryption module are arranged in the mobile terminal, the airborne microprocessor is mutually connected with the airborne encryption and decryption module through a data bus, the airborne encryption and decryption module is mutually connected with the airborne bluetooth module through a data bus, and the airborne bluetooth module is mutually connected with the vehicle bluetooth module in a bluetooth communication manner. The system is applicable to the monitoring of the operation condition of vehicles.

Description

technical field [0001] The invention specifically relates to an automobile ECU information monitoring system. Background technique [0002] Vehicle ECU (Electronic Control Unit, electronic control unit), also known as "driving computer", "vehicle computer", etc., is a special microcomputer controller for automobiles in terms of use. It is the same as an ordinary computer. It consists of a microprocessor (CPU), Memory (ROM, RAM), input / output interface (I / O), analog-to-digital converter (A / D), shaping, driving and other large-scale integrated circuits. The on-board ECU can obtain the vehicle’s mileage, speed, fuel consumption, water temperature and other information about the vehicle’s conventional technical status. The safety information mainly includes tire pressure, tire temperature, airbag status, front and rear distances and other information related to vehicle safety. The existing ways to obtain vehicle ECU data are as follows: 1) For vehicles that support the ISO15301...

AI Technical Summary

Problems solved by technology

The existing ways to obtain vehicle ECU data are as follows: 1) For vehicles that support the ISO15301-5OBD2 standard protocol, all the information in the vehicle ECU can be read through the OBD interface; the OBD interface positions of different models are different, such as FAW Toyota The new RAV4, the OBD interface is closely attached to the back of the interior trim baffle, and if a device for reading information is installed, it will affect driving safety; similar situations also exist in Shanghai Volkswagen Lavida, GAC Toyota Accord and other models, and the equipment installation Not only will it affect driving safety, but it will also cause inaccurate data read by the OBD interface

2) Obtain data through the CAN bus. In this way, the required signal data segment is read out and saved through a dedicated automotive CAN bus device (USBCAN-IIPro, USBCAN-OBD, etc.), and professional engineers will use analysis software to classify the data Analysis; reading vehicle ECU data in this way requires professional engineers and equipment to realize, and the data analysis takes a long time

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