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Method for application database file self-adaptation electronic control unit (ECU) message collection

A database and self-adaptive technology, applied in the direction of electrical digital data processing, special data processing applications, electrical components, etc., can solve the problem of data transmission flow of CAN-bus messages, and achieve the goal of reducing communication flow and reducing redundant data Effect

Active Publication Date: 2013-05-15
XIAMEN YAXON NETWORKS CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0003] This technology is to solve the problem of real-time transmission of CAN-bus message data from the vehicle-mounted terminal to the remote center, and to free the vehicle-mounted terminal from the dilemma of processing complex DBC files

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  • Method for application database file self-adaptation electronic control unit (ECU) message collection
  • Method for application database file self-adaptation electronic control unit (ECU) message collection
  • Method for application database file self-adaptation electronic control unit (ECU) message collection

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Embodiment Construction

[0017] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] As a specific example, such as figure 1 As shown, the hardware system that realizes the method of the present invention includes a remote center system and a vehicle-mounted terminal, and the remote center system and the vehicle-mounted terminal communicate through a 3G network or a GSM network, and a method for adaptively collecting ECU messages using database files of the present invention , including the following steps:

[0019] Step 1: The remote center system imports the communication information data description file used to describe each ECU in the CAN bus network;

[0020] The specific format of the database description file is shown in Table 1 below:

[0021] key field Describe the object BU_ Network Node BO_ message SG_ signal EV_ Environment Variable

[0022] Table 1

[0023] The netw...

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Abstract

The invention relates to the field of automotive electronic technology composed of a plurality of electronic control units (ECUs), in particular to a method for application database file self-adaptation electronic control unit (ECU) message collection. A database computer (DBC) file supplied by a controller area network (CAN) bus is used for collecting a message system of ECU message dynamically, a remote service center converts the DBC file into a message collection control table which can be easily recognized by a car-mounted terminal, consequently the car-mounted terminal can quickly and selectively collect signal values in the ECU message needed by actual application, and therefore the phenomenon that redundancy message data are uploaded to a center system can be reduced. The method for application database file self-adaptation ECU message collection is outstanding in collecting car driver driving habit signal data application, communication flows can be reduced greatly under the condition that signal data are not compressed, a customizable and dynamically-expanding signal collection scheme can be supplied to an operational platform, and the problem of the complex DBC file of the car-mounted terminal can be solved.

Description

technical field [0001] The invention relates to a method for adaptively collecting ECU messages by using a database file. Background technique [0002] In the current rapid development of the automobile industry, in order to realize diversified vehicle intelligent systems, dozens of electronic control units (ECUs) are often connected to the CAN-bus, and the signal data provided by each ECU can reach up to 2 64 However, the current bottleneck of smart car technology has caused many pre-defined signals to become placeholders. After these ECUs are connected to the CAN-bus, they will periodically broadcast 8-byte message data to the bus. In order to reflect the intelligence of the vehicle-mounted terminal and reduce the processing burden of the vehicle-mounted system, the vehicle-mounted terminal in the industry currently collects ECU message data transmitted on the CAN-bus without distinguishing between ECU types and signal types, and often uses passive reception of all CAN-bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G06F17/30
Inventor 江永聪何应祥彭振文李志渊
Owner XIAMEN YAXON NETWORKS CO LTD
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