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Vehicle-mounted gateway, intelligent vehicle and control method

An in-vehicle network, non-control technology, applied in network connections, data exchange networks, digital transmission systems, etc., can solve problems such as frequent task switching or bumps, increase system overhead, limit the practical application of scheduling algorithms, and avoid system crashes. Effect

Active Publication Date: 2021-09-24
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the slack values ​​of multiple tasks are close, the algorithm causes frequent switching or thrashing between tasks, which increases the overhead of the system due to scheduling and limits the practical application of the scheduling algorithm.

Method used

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  • Vehicle-mounted gateway, intelligent vehicle and control method
  • Vehicle-mounted gateway, intelligent vehicle and control method
  • Vehicle-mounted gateway, intelligent vehicle and control method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0064] See Figure 1 to Figure 3 , a vehicle-mounted gateway provided in this embodiment includes a data receiving module, a data classification module, a data hierarchical scheduling module and a data output module.

[0065] The data receiving module includes n data receiving queues for receiving message data output from the data sending end.

[0066] The data classification module includes m types of message queues, which are used to classify the message data transmitted by the data receiving module into different types of messages according to set rules, and then obtain control messages and non-control messages.

[0067] The data layering module has a built-in layered scheduling strategy, mainly corresponding to different scheduling strategies according to different types of messages, and the layered scheduling strategy includes a control message scheduling strategy and a non-control message scheduling strategy; that is, the data layering module , used to determine a contr...

Embodiment 2

[0165] See Figure 4 , this embodiment provides a smart car, the smart car includes a car body and the vehicle-mounted gateway described in the first embodiment.

Embodiment 3

[0167] See Figure 5 , this embodiment provides a control method applied to the vehicle-mounted gateway described in the embodiment, including:

[0168] Step 501: The data receiving module receives the message data output from the data sending end.

[0169] Step 502: The data classification module receives the message data transmitted by the data receiving module, and classifies the message data to obtain control messages and non-control messages.

[0170] Step 503: The data layering module determines the control message scheduling strategy for each of the control messages, and determines the non-control message scheduling strategy for each of the non-control messages; the data layering module has a built-in layered scheduling strategy; The hierarchical scheduling strategy includes a control message scheduling strategy and a non-control message scheduling strategy.

[0171] Step 504: The data output module outputs control messages according to the control message scheduling ...

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Abstract

The invention provides a vehicle-mounted gateway, an intelligent automobile and a control method, and relates to the technical field of vehicle-mounted communication, and the vehicle-mounted gateway comprises a data receiving module which is used for receiving message data output by a data sending end, and a data processing module which is used for receiving the message data transmitted by the data receiving module, classifying the message data and sending the classified message data to a server; the data classification module is used for acquiring control messages and non-control messages, the data layering module is used for determining a control message scheduling strategy of each control message, and the data classification module is used for outputting the control messages according to the control message scheduling strategies. The data output module is used for outputting the non-control message according to the non-control message scheduling strategy. According to the invention, the risk of system crash caused by frequent switching of message transmission tasks can be effectively avoided by adopting a hierarchical scheduling strategy.

Description

technical field [0001] The invention relates to the technical field of vehicle communication, in particular to a vehicle gateway, a smart car and a control method. Background technique [0002] Today, each car carries an average of 25 electronic controllers, and some high-end models often have more than 100 electronic controllers. Taking the driving assistance system as an example, in order to meet the functional requirements of future autonomous driving, the automotive software system will inevitably bring more codes and software packages. Running and storing these codes requires larger storage space and stronger computing ability. In order not to make the vehicle network architecture more complicated, it is the development trend of today's automotive electronic systems to integrate the existing and scattered small electronic controllers into domain controllers and match them with an open overall architecture. The so-called "domain" is to divide the automotive electronic ...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L12/869H04L29/08
CPCH04L12/66H04L47/60H04L67/12
Inventor 王文伟俞诗瑶曹万科
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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