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Method and system for preventing vehicle mileage tampering

A mileage and vehicle technology, which is applied in the direction of response error generation, redundant operation data error detection, digital data protection, etc. Effect

Inactive Publication Date: 2015-10-14
CONTINENTAL AUTOMOTIVE WUHU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Finally, illegal crackers can modify the data block arbitrarily, so that the mileage of the vehicle displayed on the vehicle instrument will change accordingly, which does not match the actual mileage of the vehicle

Method used

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  • Method and system for preventing vehicle mileage tampering
  • Method and system for preventing vehicle mileage tampering
  • Method and system for preventing vehicle mileage tampering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0046] According to one embodiment, the system for preventing tampering of vehicle mileage may be a vehicle instrument, wherein the memory in the vehicle instrument may include a plurality of storage areas, one of which is used as a storage unit 20 for storing mileage record data, and Another storage area different from this storage area in the vehicle meter is used as a backup unit 30 for saving a backup of mileage data.

[0047] In other embodiments, the system for preventing tampering of vehicle mileage includes a vehicle instrument and a memory in an electronic control unit such as a vehicle body control unit, an engine control unit, and a transmission control unit located outside the vehicle instrument. The vehicle instrument includes the above-mentioned acquisition unit 10 , storage unit 20 , electronic control unit 30 and display unit 50 , and the backup unit 30 is located in the memory of these electronic control units outside the vehicle instrument.

[0048] According...

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Abstract

The invention provides a method and a system for preventing vehicle mileage tampering. The method comprises the following steps of: obtaining mileage record data of a vehicle; performing data checking calculation on the obtained mileage record data and then obtaining a checking value; performing coding processing on the mileage record data and the checking value obtained after the calculation to form mileage record data backup and storing the mileage record data backup, wherein the storage position of the mileage record data backup is different from a conventional storage position of the mileage record data; during vehicle ignition starting, comparing the mileage corresponding to the mileage record data backup with the mileage obtained from the conventional storage position, and comparing the checking value obtained after the calculation with the checking value corresponding to the mileage obtained from the conventional storage position; if the mileages are consistent and the checking values are consistent, normally displaying the mileage obtained from the conventional storage position by a vehicle instrument; and if at least one item is inconsistent, displaying error prompt through the vehicle instrument. Therefore whether the vehicle running mileage is artificially modified or not can be known, so that the vehicle running mileage is prevented from being illegally tempered.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a method and system for preventing tampering of vehicle mileage. Background technique [0002] In the second-hand car market, the mileage of the vehicle is an important reference for estimating the condition of the vehicle, which will greatly affect the sales price of the vehicle. Therefore, there are illegal crackers in the market by tampering with the mileage of the vehicle, so that the instrument of the vehicle cannot truthfully reflect the newness and oldness of the vehicle, thereby making illegal profits. [0003] A common tampering method at present is to find out the address of the flash memory (flash) that records the mileage of the vehicle by comparing the electrically erasable programmable read-only memory (EEPROM) that stores the mileage of the vehicle in the vehicle instrument, and modify this The value corresponding to the address is used to realize tampering. [0...

Claims

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Application Information

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IPC IPC(8): G06F21/60G06F11/14
Inventor 徐洋
Owner CONTINENTAL AUTOMOTIVE WUHU
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