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Automatic driving method and device of automobile

A technology for automatic driving and automobiles, applied in two-dimensional position/course control, vehicle position/route/height control, motor vehicles, etc., can solve problems such as unavailable and difficult to make driving actions

Inactive Publication Date: 2017-09-15
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for automatic driving of automobiles, aiming to solve the problem that the existing technology cannot provide an effective decision-making method for automatic driving, which makes it difficult for automatic driving vehicles to solve the problem when faced with various types of driving scenes and complex road conditions. Problems making timely and efficient driving maneuvers

Method used

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  • Automatic driving method and device of automobile
  • Automatic driving method and device of automobile

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Embodiment 1

[0021] figure 1 It shows the implementation process of the automatic driving method of the automobile provided by Embodiment 1 of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0022] In step S101, the vehicle state at the current location of the vehicle is acquired through preset sensors on the vehicle.

[0023] The embodiments of the present invention are applicable to automobiles and automatic driving platforms or equipment on automobiles. The state of the automobile refers to a state during the driving process of the automobile, which can be represented by the current parameter values ​​of various components such as automobile tires, steering wheels, and engines. Various sensors (for example, radar, ultrasonic, visual sensors, etc.) set or installed on the computer can be obtained. As an example, the state can be represented by parameters such as the ...

Embodiment 2

[0039] image 3 The structure of the automatic driving device of the automobile provided by the second embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

[0040] A state acquisition unit 31, configured to obtain the vehicle state of the current position of the vehicle through preset sensors on the vehicle;

[0041] The reward value acquisition unit 32 is used to obtain the reward value of the currently available driving action of the car according to the state of the car and the pre-established policy network model, wherein the policy network model is established by a preset deep reinforcement learning algorithm; and

[0042] The action execution unit 33 is configured to set and execute the currently available driving action corresponding to the maximum reward value among the reward values ​​as the next execution action of the car.

[0043] In the embodiment...

Embodiment 3

[0045] Figure 4 The structure of the automatic driving device of the automobile provided by the third embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

[0046] The initialization unit 41 is used to initialize the set policy network model, set the immediate reward function of the car driving action, and initialize the reward value of the immediate reward function;

[0047] The maximum value obtaining unit 42 is used to receive the sample of the current training state of the car, calculate the immediate return value of each driving action in the action set of the car according to the current training state and the immediate return function, and obtain the maximum immediate return value in the immediate return value;

[0048] An action screening unit 43, configured to randomly select any driving action as the selected driving action, otherwise the driving acti...

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Abstract

The present invention belongs to the automobile automatic driving technical field and provides an automatic driving method and device of an automobile. The method comprises the following steps that: the automobile state of the current position of the automobile is obtained through sensors preset on the automobile; the return values of the current available driving actions of the automobile are obtained according to the automobile state and a pre-established strategic network model, wherein the strategic network model is established through a preset deep reinforcement learning algorithm; and a current available driving action corresponding to a maximum return value in the return values is set to be a next execution action of the automobile and is executed. Thus, with the automatic driving method and device of the automobile of the invention adopted, under diverse driving conditions and complex traffic conditions, favorable driving actions are obtained timely and effectively and executed, and the automatic driving of the automobile can be realized.

Description

technical field [0001] The invention belongs to the technical field of automatic driving of automobiles, in particular to a method and device for automatic driving of automobiles. Background technique [0002] In recent years, with the development of the economy and the advancement of urbanization, the global car ownership and road mileage have gradually increased, and a series of problems that cannot be properly solved by traditional cars, such as traffic congestion, accidents, pollution, and shortage of land resources, have become increasingly prominent. Smart car technology is seen as an effective solution, and its development has attracted much attention. The Institute of Electrical and Electronics Engineers (IEEE) predicts that by 2040, the proportion of autonomous vehicles will reach 75%. [0003] A variety of sensors and products for assisted driving systems have appeared on the market, such as: lidar, adaptive cruise system, vehicle approach notification device, nig...

Claims

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Application Information

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IPC IPC(8): G05D1/02
CPCG05D1/0217
Inventor 夏伟李慧云
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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