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A calibration device and method for automotive electronic control units based on ccp protocol

A technology of automotive electronics and control units, applied in the direction of electrical testing/monitoring, etc., can solve the problems of high cost and small amount of programming, and achieve the effect of reducing costs, development and calibration costs

Active Publication Date: 2017-04-19
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology

The advantage of this method is that the amount of programming is small and is suitable for automatically generated code based on the model, but the inventors have found that this method also has shortcomings: it depends on the support of single-chip microcomputers, but at this stage there are only a few single-chip microcomputers that can realize this. an extended function; in addition, the cost of this implementation is high

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  • A calibration device and method for automotive electronic control units based on ccp protocol
  • A calibration device and method for automotive electronic control units based on ccp protocol

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] Such as figure 1 As shown in FIG. 1 , a calibration device for an automotive electronic control unit based on the CCP protocol in an implementation of the present invention is shown. As can be seen from the figure, the calibration device 1 includes:

[0041]The first memory 12, which is a non-volatile memory, is a flash memory (FLASH) in this embodiment, and stores an S19 file, hereinafter referred to as the current S19 file, in which the current S19 file i...

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Abstract

The invention provides a method for calibrating electronic control units of automobiles on the basis of a CCP [CAN (controller area network) calibration protocol]. The method includes reading current S19 files in first memories and explicitly writing mapping addresses and initial values of various implicitly stored calibration parameters into a second S19 files; parsing the second S19 files, acquiring the mapping addresses and the initial values of the various calibration parameters, calibrating the to-be-calibrated electronic control units of the automobiles in an online manner after calibration commands are received, and acquiring calibration parameter values which are calibrated in the online manner; replacing the initial values of the various calibration parameters in the current S19 files in the first memories by the various calibration parameter values which are calibrated in the online manner. The method has the advantages that the complexity of a system for calibrating the ECU (electronic control units) of the automobiles can be reduced, and the production cost and the labor cost can be lowered.

Description

technical field [0001] The invention relates to the technical field of automotive electronic control, in particular to a calibration device and method for an automotive electronic control unit based on a CCP protocol (CANCalibration Protocol, CAN bus calibration protocol). Background technique [0002] In the process of automobile design and manufacturing, calibration steps are often required. The calibration mentioned here means that according to the performance requirements of the whole vehicle: such as power, economy and emission, etc., with the goal of achieving the optimal control and economy, the electronic control unit (ECU, ECU) ) operation and parameter adjustment and optimization process. The CAN bus calibration protocol (CCP) is based on the CAN calibration protocol, because it provides a standardized interface, which improves the versatility and practicability of the calibration system. [0003] At this stage, the calibration based on CCP is divided into two ty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 马逸行何涛覃兴琨夏珩宫成
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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