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Intelligent vehicle planning control method based on reinforcement learning and model prediction

A technology of reinforcement learning and planning control, applied in two-dimensional position/course control, vehicle position/route/height control, control/adjustment system, etc., can solve the problem of inaccurate positioning of intelligent vehicles, and achieve improved convergence speed and Training efficiency, ensuring safety and smoothness, and ensuring the effect of trajectory

Pending Publication Date: 2022-05-06
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of inaccurate positioning of smart cars in the background technology, the present invention proposes a smart car planning and control method based on reinforcement learning and model prediction, and improves the existing planning and control algorithms to improve the smart car's Stability and comfort when positioning is imprecise

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  • Intelligent vehicle planning control method based on reinforcement learning and model prediction
  • Intelligent vehicle planning control method based on reinforcement learning and model prediction
  • Intelligent vehicle planning control method based on reinforcement learning and model prediction

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Embodiment Construction

[0055] The present invention will be further elaborated and described below in combination with specific embodiments. The technical features of the various implementations in the present invention can be combined accordingly on the premise that there is no conflict with each other.

[0056] Such as Figure 9 Shown, the present invention comprises the following steps:

[0057] Step 1: LiDAR sensor and GPS sensor are installed on the smart car. Obtain the obstacle grid map through the vehicle lidar sensor, determine the road boundary information and obstacle information around the vehicle body in the lidar sensor coordinate system based on the obstacle grid map, and then obtain the road boundary information in the vehicle body coordinate system after coordinate conversion and obstacle information; the obstacle information is specifically the location of the nearest obstacle in front of the smart car.

[0058] Step 2: Use the vehicle-mounted GPS sensor to collect the global re...

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Abstract

The invention discloses an intelligent vehicle planning control method based on reinforcement learning and model prediction. Comprising the following steps: acquiring and calculating road boundary information and obstacle information under a vehicle body coordinate system through a vehicle-mounted laser radar sensor; acquiring and calculating by using a vehicle-mounted GPS sensor to obtain a global reference road point under a vehicle body coordinate system; building a virtual scene where the intelligent vehicle is located; under the virtual scene of the intelligent vehicle, based on the road boundary information, the obstacle information and the global reference road point under the vehicle body coordinate system, a path generation module is used for carrying out path planning on the intelligent vehicle, and a planned path of the intelligent vehicle is obtained; and the tracking control module is used for tracking the planning path of the intelligent vehicle, so that planning control of the intelligent vehicle is realized. Network training of a planning part is improved, the path planning effect of the intelligent vehicle when positioning is not accurate is ensured, and the stability and comfort of vehicle body movement are improved.

Description

technical field [0001] The invention belongs to a smart car planning control method in the field of smart car automatic driving, and specifically relates to a smart car planning control method based on reinforcement learning and model prediction in a weak GPS environment. Background technique [0002] With the development of the economy and the improvement of the technical level of the automobile industry in recent years, the number of automobiles has continued to increase, leading to the aggravation of traffic accidents, traffic congestion, exhaust emissions, driver drowsiness and other problems. Unmanned vehicles have the advantages of energy saving, environmental protection, comfort and high efficiency. They are an important trend in the future development of automobiles and are highly valued by countries all over the world. [0003] Path planning and tracking control are key technologies for autonomous driving. For the path planning module, its planning effect is heavil...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/024G05D1/0257G05D1/0223G05D1/0214G05D1/0221G05D1/0278G05D1/0276Y02T10/40
Inventor 陈剑戚子恒王通
Owner ZHEJIANG UNIV