Dormancy control method and device based on osek standard

Abstract

The invention relates to the field of network management and discloses a dormancy control method and device based on the OSEK standard. When an electronic control unit (ECU) meets the dormancy condition, the ECU generates a dormancy command meeting a network management layer protocol to set a local dormancy mark. When other ECU nodes in the network all meet the dormancy condition, dormancy inform waiting information is generated to enable an application layer to generate a communication closing command. After the communication closing command is received, modules in a communication layer close a communication function. When time of modules in the network management layer entering the dormancy waiting state reaches the preset value and awaking accidents do not happen, dormancy entering inform information is generated. The modules in the application layer generate a controller area network (CAN) transceiver dormancy command and a CAN controller dormancy command successively to enable a CAN transceiver and a CAN controller to enter the dormancy state successively. By means of the dormancy control method, network management is achieved according to strict flow, and ECU stability and reliability are improved.

Description

technical field [0001] The invention relates to the field of network management, in particular to a dormancy control method and device based on the OSEK standard. Background technique [0002] OSEK (opensystemsandthecorrespondinginterfacesforautomotiveelectronics) refers to the German automotive electronics open system and application interface standard, which is a standard widely used in automotive management systems in the market. [0003] In each device of the car, such as windows, doors, seats, air conditioners, etc., there is an ECU (Electronic Control Unit, electronic control unit) for network management inside. Each ECU follows the OSEK standard and adopts CAN (ControllerAreaNetwork, Controller Area Network Network) bus technology for data exchange. Among them, the ECUs connected in the same network segment often achieve the purpose of reducing power consumption through cooperative sleep and wake-up methods. see figure 1 The schematic diagram of the structure of th...

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a dormancy control method based on the OSEK standard, to solve the problem in the prior art that the ECU cannot achieve dormancy due to the problem of cross-level access during the dormancy process. The specific implementation of the problem is as follows:

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