A sleep and wake-up method of hybrid network in vehicle including vehicle Ethernet
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A hybrid network, Ethernet technology used in the field of smart cars
Active Publication Date: 2021-08-20
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 based on 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 state, a...
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Abstract
The present invention provides a sleep and wake-up method for a hybrid network in a vehicle including the vehicle Ethernet, which is characterized in that it includes: step S1, the controllers in the vehicle are connected to the network through their respective buses connected to the network and are connected to the network by the network manager Manage; step S2, when there is a trigger sleep condition in the network, the network coordinator judges whether the bus in the network is in a dormant state, if any bus is not in a dormant state, then the current network maintains the network mode, if all the bus are in sleep state, after a preset waiting time, the network coordinator releases the network and enters total sleep mode. The present invention provides a technical solution that can manage the sleep and wake-up states of the hybrid network in the car that includes the vehicle-mounted Ethernet, coordinates and manages the sleep and wake-up states that contain the Autosar Ethernet network, the Autosar CAN network, and the OSEK CAN network, saving In-vehicle network resources and energy saving to improve efficiency.
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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