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Vehicle driving system and method

A vehicle driving and vehicle technology, applied in the field of vehicle driving systems, can solve problems such as uncontrollable vehicle driving systems, and achieve the effects of improving stability and safety, shortening communication paths, and improving real-time performance.

Active Publication Date: 2021-08-13
UNITED AUTOMOTIVE ELECTRONICS SYST
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Problems solved by technology

[0003] However, in the existing vehicle driving system, the automatic driving controller undertakes all the functions of environment perception, path planning and control execution in the automatic driving state. There is no redundant design. In the automatic driving state, if the automatic driving controller fails , the vehicle driving system will enter an uncontrollable state

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  • Vehicle driving system and method

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Embodiment Construction

[0023] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0024] refer to figure 1 , which is a structural schematic diagram of a vehicle driving system, such as figure 1 As shown, when the vehicle driving system is in the state of automatic driving, the automatic driving controller 1 completes the command calculation of environment perception, path planning and control execution, and sends control information to the chassis CAN bus and power system of the vehicle according to the planned path On the CAN bus, the chassis CAN bus is connected with a steering system and...

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Abstract

The present invention provides a vehicle driving system and method, the automatic driving controller is responsible for the tasks of environment perception and path planning, and sends the planned path to the vehicle motion domain controller, and the vehicle motion domain controller The planned path is verified to realize the redundant design of key functions. If the automatic driving controller fails and there is a problem with the planned path, the vehicle motion domain controller can find out in time, which improves the reliability of the vehicle driving system. Stability and safety, further, since the vehicle motion domain controller directly coordinates the steering system, braking system and power system of the vehicle to drive according to the planned path, the communication path of the control execution part is greatly shortened, and the The communication delay improves the real-time performance of the vehicle driving system.

Description

technical field [0001] The invention relates to the technical field of automotive electronic control, in particular to a vehicle driving system and method. Background technique [0002] In the existing autonomous driving vehicles (divided into L3 and L4 according to the SAE automatic driving level), in the automatic driving state, the control process is generally divided into three parts: environment perception, path planning and control execution. In the environment perception part, the vehicle driving The system performs information fusion through the information of various sensors installed on the vehicle, and then establishes the environment model around the vehicle, and then performs path planning according to the environment model around the vehicle, the state and intention of the vehicle itself, such as Cruise in the lane, follow the car, change lanes and overtake, etc. Finally, the vehicle driving system makes the vehicle follow the planned path by controlling the st...

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Application Information

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IPC IPC(8): G05D1/02
CPCG05D1/0214G05D1/0246G05D1/0257G05D1/0276
Inventor 刘佳熙李君丁锋施思明张威
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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