Application-driven dynamic switching networked control device for electric vehicles

Abstract

The invention relates to a control device for an electric vehicle and particularly relates to an application driven dynamic switching networked control device for the electric vehicle, comprising a comparison module, an application driven module, a switching module, task strategy libraries and a comprehensive module, wherein each task strategy library comprises a controller module and a dispatcher module; the comparison module is connected with a sensor of the vehicle through a CAN protocol network and is also connected with the switching module; the application driven module is connected with the sensor of the vehicle through the CAN protocol network and is also connected with the switching module; the switching module is connected with the task strategy libraries; the controller module is connected with the comprehensive module; the dispatcher module is connected with the comprehensive module; and the comprehensive module is connected with an actuator of the vehicle through the CAN protocol network. The application driven dynamic switching networked control device for the electric vehicle, provided by the invention, can meet different real-time performance and data transmission frequency demands of multiple tasks and also can reduce the total data transmission quantity while ensuring the system performance.

Description

technical field [0001] The invention relates to a control device for an electric vehicle, in particular to an application-driven dynamic switching networked control device for the electric vehicle. Background technique [0002] The current development and promotion of electric vehicles has attracted people's attention, but the problems of driving range, driving safety and cost still need to be further resolved. With the development of automotive integrated control theory, motor control technology, automotive electronics technology, and vehicle-mounted network technology, research on a type of multi-task switching integrated control technology dedicated to improving energy efficiency, driving safety, and comprehensive cost performance of electric vehicles has gained rapid progress. develop. Thanks to the fast response capability and high control precision of the motor system, these new multi-task switching integrated control technologies have made great progress recently. I...

AI Technical Summary

Problems solved by technology

In order to meet the tasks with the highest real-time requirements, the traditional fixed-period sampling and control processing methods usually have to adopt a shorter transmission period. For networked control systems, this will lead to high network resource occupancy and data There are problems such as huge transmission volume and long information queuing delay; while such frequent sampling is unnecessary when running other tasks with relatively low real-time performance, the frequent transmission of a large amount of sampled data and control command signals is a serious threat to network resources. waste

Therefore, the fixed-period sampling processing mode cannot meet the needs of multi-task switching integrated control of electric vehicles.

[0005] However, other existing variable-period sampling and control processing methods are usually used to improve the control performance of single-task systems, such as the variable sampling period method based on control performance feedback, which is not suitable for this type of multi-task switching integrated processing system

[0006] Existing networked control methods for electric vehicles have certain limitations and cannot meet the application requirements of multi-task application function switching integrated networked control for electric vehicles

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