Sleep and wake-up method for in-vehicle hybrid network including vehicle-mounted Ethernet
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A hybrid network and Ethernet technology applied in the field of smart cars to save network resources, save power, and improve efficiency
Active Publication Date: 2020-02-07
SHANGHAI HEQIAN ELECTRONICS TECH CO LTD
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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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Embodiment 1
[0070] This embodiment provides a sleep and wake-up management device for an in-vehicle hybrid network that includes an in-vehicle Ethernet, see figure 1 , including the central gateway, the central gateway is respectively connected to the corresponding ECU or node gateway through multiple buses based on different transmission protocols, the bus at least includes: Autosar Ethernet (Ethernet) bus, Autosar CAN bus, OSEK CAN bus.
[0071] figure 1 It is a schematic structural diagram of an in-vehicle hybrid network architecture containing in-vehicle Ethernet in an embodiment;
[0072] figure 1 It shows that A1 and A2 are connected to the Autosar Ethernet bus, and both A1 and A2 can represent node gateways, ECUs, nodes, etc. on the Autosar Ethernet bus. A1, A2 data reception and transmission are based on the Autosar Ethernet vehicle Ethernet protocol, B1, B2, B3 can represent node gateways, ECUs, nodes, etc. on the OSEK CAN bus, B1, B2, B3 data reception and transmission are bas...
Embodiment 2
[0152] This embodiment provides a method for sleeping and waking up a vehicle-mounted Ethernet network, comprising the following steps:
[0153] Step S1, the in-vehicle controllers are connected to the network through their respective buses and managed by the network manager;
[0154] Wherein, network manager includes Autosar network manager, OSEK CAN network manager, and Autosar network manager includes Autosar Ethernet network manager and Autosar CAN network manager; Bus at least includes Autosar Ethernet bus, Autosar CAN bus, OSEK CAN bus , the network manager manages with its corresponding bus;
[0155] The controller includes at least one or more of ECU and node gateway;
[0156] Step S2, when there is a triggering sleep condition in the network, the network coordinator judges whether the bus is in a dormant state according to the bus in the network. If any bus is not in a dormant state, the current network is in a waiting sleep state. If all the buses are in sleep stat...
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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...
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