Sleep and wake-up method for in-vehicle hybrid network including vehicle-mounted Ethernet

Abstract

The invention provides a sleep and wake-up method for an in-vehicle hybrid network including the vehicle-mounted Ethernet. The method is characterized by comprising the following steps that S1, an in-vehicle controller is connected into the network through buses connected with the in-vehicle controller and managed by a network manager; and S2, when a sleep trigger condition exists in the network,a network coordinator judges whether the buses in the network are in the hibernation state or not, if any one of the buses is not in the hibernation state, the current network maintains a network mode, and if all the buses are in the hibernation state, the network coordinator releases the network and enters the total sleep mode after the preset waiting time. According to the technical scheme, thesleep and wake-up states of the in-vehicle hybrid network including the vehicle-mounted Ethernet can be managed, coordinated management comprises the management of the sleep and wake-up states of theAutosar Ethernet network, the Autosar CAN network and the OSEK CAN network, the network resources in a vehicle are saved, the energy is saved, and the efficiency is improved.

Description

technical field [0001] The invention relates to the field of smart cars, in particular to a sleep and wake-up method of an in-vehicle hybrid network including an in-vehicle Ethernet. Background technique [0002] With the popularization of automobiles, more and more automobiles have entered thousands of households. With the continuous improvement of people's living consumption level, the number of automobiles has also continued to increase. Everyone has higher and higher requirements for the intelligence of electrical appliances in the car. At the same time that the data requirements of automobile intelligence are increasing, the traditional CAN network (2M / s) can no longer meet the data transmission of smart cars due to its low transmission rate. In order to solve the data transmission problem of traffic, a high-speed transmission of automotive Ethernet ( 100M / s) was introduced into smart cars, but with the gradual introduction of automotive Ethernet into the interior of th...

AI Technical Summary

Problems solved by technology

However, CAN network management or signal level is used in the interior of existing cars. With the conversion of the ECU controller bus form from CAN to Ethernet, the Ethernet ECU controller needs sleep and wake-up management. The gateway device faces the following problems: On the one hand Need to support Ethernet network sleep wake-up management, on the other hand need a strategy to coordinate with other bus sleep wake-up management mechanisms

The automotive gateway device needs to support both traditional CAN bus network management and Ethernet network management. At the same time, there are two protocols for CAN network management, OSEK and AUTOSAR. In this way, there are many protocols and multiple bus forms for car sleep and wake-up. At present, there is no one clear method to coordinate management, the present invention proposes to solve this problem

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