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Program updating method and device

A program update and original program technology, applied in the electrical and electronic field, can solve the problems of the electronic control unit unable to run the update program, the vehicle function failure, the wrong update program update program, etc.

Inactive Publication Date: 2018-06-29
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if an error occurs during the download process of the update program, the download of the update program fails, and the electronic control unit downloads a wrong update program or an incomplete update program, then the electronic control unit cannot run the update program, and it is impossible to realize the update program for the vehicle. control, resulting in vehicle function failure

Method used

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Embodiment Construction

[0016] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. The present invention is by no means limited to any specific configurations and algorithms presented below, but covers any modification, substitution and improvement of elements, components and algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present invention.

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Abstract

The invention provides a program updating method and device and relates to the electronics and electrical field. The program updating method is applied to an electronic control unit; a flash memory ofthe electronic control unit includes an operation area and a backup area. The program updating method includes: receiving a program updating request; backing up a current original program in the operation area to the backup area; downloading an update program to the operation area; if an error occurs during downloading of the update program, restoring the original program in the backup area to the operation area. By using the program updating method and device can prevent functional failure of a vehicle.

Description

technical field [0001] The invention relates to the field of electronics and electricity, in particular to a program updating method and device. Background technique [0002] Electronic Control Units (ECU, Electronic Control Unit) are widely used in vehicles. It is widely used in automobiles. The electronic control unit can perform calculations according to the collected parameter information in combination with the program stored in the electronic control unit. The result of the calculation is converted into a control signal, so as to realize the overall control of the vehicle by the electronic control unit. [0003] In order to realize various control functions of the vehicle, the electronic control unit needs to store and run programs in the electronic control unit, so as to realize the control of the vehicle. As users' requirements for vehicle control functions increase, the programs in the vehicle's electronic control unit also need to be updated. Specifically, the ...

Claims

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Application Information

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IPC IPC(8): G06F8/65
CPCG06F8/65
Inventor 陈其锋黄信易关建吴健李峥峥
Owner CONTEMPORARY AMPEREX TECH CO
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