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Method for programming data in at least two control devices of a motor vehicle

A technology for controlling equipment and process control, applied in the direction of program control, program control device, computer control, etc., can solve problems such as software version inconsistency, errors, etc.

Inactive Publication Date: 2011-06-01
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will lead to an error because the software versions do not match, software version 2 on control device A and software version 1 on control device B (safety aspect)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] According to one embodiment of the present invention, the control device in the deactivated state remains in the deactivated state after restarting the control device, for example, due to an unexpected restart caused by power failure, which can especially avoid undefined The working status of the control equipment.

[0009] According to one embodiment of the invention, at least one of the following operating functions is deactivated in the deactivated state: automatic fault storage, message sending or emergency operation functions. This can reduce the burden on the data bus and facilitate the programming of the control device. Assumed errors are prevented, enabling uninterrupted programming.

[0010] According to one exemplary embodiment of the invention, the first and the second control device are each assigned new data or a completely or partly new process control program in programming mode. In particular the data and the process control program are saved in the fl...

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PUM

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Abstract

The invention relates to a method for programming data in at least one first and one second control device of a motor vehicle. In order to faster provide the control devices with updated data or updated sequencing controls, the invention proposes for the first and the second control devices to be provided with a sequencing control, comprising a reversible deactivation state, a programming mode and an operating mode with operating functions. The first and the second control devices are put into the deactivation mode, in which the execution of operating functions of the operating mode, preferably at least to a large extent, is prevented. The first and the second control devices are put into the programming mode, during which the reversible deactivation state of each control device still remains, and the deactivation state of all control devices is reversed after the respective data has been entered into all control devices in the programming mode.

Description

technical field [0001] In particular, the invention relates to a method for introducing data, in particular a process control program, into at least a first and a second control unit of a motor vehicle according to the preamble of claim 1 . Background technique [0002] There are 50 to 70 control devices installed in modern cars, and the flash E-PROM memories of these control devices can be updated separately through the on-board diagnosis (OBD) connection and the electrical network inside the car. This method of reprogramming is also called "flash memory". For this purpose, a programming system ("tester") can be connected to the vehicle via a vehicle interface, for example an OBD interface. [0003] When programming a complete vehicle, the tester programs the complete vehicle one control device after another according to its transaction list, or the tester processes in parallel as many control devices as it has available transmission channels. Before starting programming,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G06F9/445
CPCG06F8/665G06F8/67G05B19/0426G06F8/654
Inventor R·托马斯A·纳格勒
Owner BAYERISCHE MOTOREN WERKE AG