Vehicle-driving control method and device for Intelligent fault diagnosis and driving behavior analysis

A technology of fault diagnosis and behavior analysis, applied in electrical testing/monitoring, registration/indication of vehicle operation, instruments, etc., it can solve the problem that the mileage and speed information cannot obtain the real fuel consumption of the vehicle, and the fault information cannot be displayed immediately to the driver, affecting the Traffic conditions and other issues in local sections of the road, to achieve the effect of eliminating hidden dangers, reducing fuel costs, and avoiding accidents.

Active Publication Date: 2011-07-20
QIMING INFORMATION TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the vehicle breaks down, the recorder cannot perform self-diagnosis, and cannot immediately display the fault information to the driver in time, causing some safety hazards, especially for long-distance operating vehicles. It will affect the traffic conditions of some road sections, and the content of recorded information is basically not helpful for efficient and accurate maintenanc

Method used

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  • Vehicle-driving control method and device for Intelligent fault diagnosis and driving behavior analysis
  • Vehicle-driving control method and device for Intelligent fault diagnosis and driving behavior analysis
  • Vehicle-driving control method and device for Intelligent fault diagnosis and driving behavior analysis

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Example Embodiment

[0024] Example 1

[0025] according to figure 1 As shown, the device of the present invention is composed of a microcontroller, a CAN driver, a K driver, a data memory, and a man-machine exchange unit. Among them,

[0026] The universal asynchronous receiver-transmitter (UART) module of the microcontroller (MCU) is connected to the car diagnostic interface through the K-line driver to read the fault code in the vehicle engine electronic control unit for analysis. The analog SPI port of the microcontroller (MCU) is connected to The human-computer interaction unit displays vehicle fault information on the LCD display of the human-computer interaction unit; the controller area network (CAN) module of the microcontroller (MCU) is connected to the vehicle diagnostic interface through the CAN driver to collect real-time vehicle status information , The I / O port of the microcontroller (MCU) is connected with the data memory, and the collected information is stored in the external data me...

Example Embodiment

[0027] Example 2

[0028] according to figure 2 As shown, the level conversion chip TPS5430 obtains a 5V voltage by dividing the resistors R1 and R2; the level conversion chip AS1117 outputs a 3.3V voltage of 800mA. The microprocessor MCU is connected to the car diagnostic interface through the K driver (L9637 in this embodiment) to perform K_Line diagnosis on the vehicle, and the CAN driver (TJA1050 in this embodiment) is connected to the car diagnostic interface to realize vehicle CAN bus communication; man-machine dialogue The LCD display of the unit adopts the I / O port analog SPI communication mode, and the 4 buttons are directly controlled by 4 I / O ports; the control mode of the data memory (Flash) adopts the analog bus mode, and the control of the data memory The terminal and data input are connected to the I / O of the MCU; the MCU downloads the data to the TF card through SPI communication, the MCU’s master-slave selection CS, master-out slave-in MOSI, serial clock SCK, ...

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Abstract

The invention provides a vehicle-driving control method for intelligent fault diagnosis and driving behavior analysis, comprising the following steps of: reading a fault code inside an electronic control unit of an engine of a vehicle and analyzing the fault code into fault information of the vehicle by connecting a microcontroller with a vehicle diagnosis interface through a K line driver, and displaying the vehicle fault information on an LCD (Liquid Crystal Display) screen of a man-machine interaction unit; acquiring real-time state information of the vehicle by connecting the microcontroller with the vehicle diagnosis interface through a CAN (Controller Area Network) driver, and storing the acquired real-time state information into a data storage according to a fixed format; copying data stored in the data storage into a USB flash disk through a USB interface so as to carry out data analysis by application software matched with a device, and providing a driving behavior analysis result. The invention realizes the real-time data acquisition and storage functions of the integral vehicle so that the bad driving behaviors of drivers are corrected in time, also provides real data foundation for accurate fault maintenance and ensures that the comparison of real oil consumption and oiling quantity is evidence-based by providing a display function of a regional total oil injectionquantity.

Description

technical field [0001] The invention discloses a driving control method for intelligent fault diagnosis and driving behavior analysis, and also provides a device for realizing the method, which belongs to automotive electronics vehicle-mounted products and can be used for front-mounting or rear-mounting of automobiles. The utility model belongs to the field of vehicle driving recorder and vehicle-mounted diagnostic instrument. Background technique [0002] At present, the existing vehicle driving recorder mainly has the following functions: recording and storing status information such as vehicle running speed, time, and mileage. The main purpose is to curb speeding and fatigue driving of vehicles, and ensure driving safety. However, when the vehicle breaks down, the recorder cannot perform self-diagnosis, and cannot immediately display the fault information to the driver in time, causing some safety hazards, especially for long-distance operating vehicles. It will affect ...

Claims

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Application Information

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IPC IPC(8): G07C5/08G05B23/02
Inventor 郭刚齐光石王长千王守利刘玉华赵沛时卢明
Owner QIMING INFORMATION TECH
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