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Automatic driving control method, device and vehicle

An automatic driving control and target vehicle technology, applied in the field of automatic driving, can solve the problems of accelerating lane change, braking too hard, unable to change lanes and other problems, to achieve the effect of improving reliability, tacit understanding of road right interaction, and comfortable experience for occupants

Active Publication Date: 2022-03-08
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This inherent car-following and lane-changing mode cannot be adapted to surrounding drivers with different driving styles such as aggressive or conservative. Acceleration lane change failed

Method used

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  • Automatic driving control method, device and vehicle
  • Automatic driving control method, device and vehicle
  • Automatic driving control method, device and vehicle

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Experimental program
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Embodiment Construction

[0021] The inventors of the present application have found through long-term research that, since the following strategies and lane-changing strategies of the current self-driving vehicles are fixed, they cannot be flexibly adapted to accompanying vehicles with different driving habits. In the state of accompanying straight ahead, the vehicle in front that the vehicle is following may need to frequently accelerate and decelerate. If the driving habit of the vehicle in front is more aggressive than that of ordinary vehicles, and the braking deceleration is large each time, the following distance of the vehicle according to the fixed strategy will be reduced. It is easy to enter the section of high braking force, and there are many sudden brakes, resulting in poor comfort of the vehicle; in the case of accompanying lane changes, for example, the TTC (Time To Collision, predicted collision contact time) of the distance between adjacent lanes requires It reaches 4 seconds. If the d...

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Abstract

The invention discloses an automatic driving control method, device and vehicle. The method includes: when the vehicle is monitored to be in the companion state, acquiring driving data of target vehicles around the vehicle within a preset time window; according to the driving data, Determine the driving habit information of the target vehicle; based on the driving habit information, adjust the following distance and / or lane-changing strategy of the own vehicle, so as to further control the driving of the own vehicle according to the adjusted following distance and / or lane-changing strategy. By learning the driving habits of the surrounding target vehicles, the car's following distance and / or lane change strategy are adjusted, making the car's following and lane changing behaviors more flexible, which is conducive to improving the reliability of automatic driving control.

Description

technical field [0001] The present invention relates to the technical field of automatic driving, in particular to an automatic driving control method, device and vehicle. Background technique [0002] With the development of science and technology, the research of autonomous driving technology has attracted more and more attention. HWA (HighwayAssist, Highway Assist) / HWP (Highway Pilot, Highway Pilot) will automatically control longitudinal control and lateral lane keeping on high-speed road sections. If the vehicle in front is too slow, the radar detects that the rear vehicle in the side lane is not at the current position and speed. collision risk, the system can support automatic lane change. [0003] For longitudinal control in HWA, the driver first sets the following distance preference in ACC (Adaptive Cruise Control): far, medium, and close. Then the vehicle selects acceleration and deceleration & acceleration and deceleration rate of change according to the collis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W60/00B60W30/16B60W30/18
CPCB60W60/001B60W30/16B60W30/18163B60W2754/30
Inventor 沈骏李红林程梁柱裴双红杨祖煌
Owner DONGFENG MOTOR CORP HUBEI