Vehicle trajectory prediction method and device based on driver's control intention and system

A trajectory prediction, driver technology, applied to devices and systems

Pending Publication Date: 2018-10-12
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

When the actual inter-vehicle distance is detected to be greater than the safety distance threshold, the driving safety status of the car is considered to be relatively safe; otherwise, the car is considered to be in danger of collision during driving

Method used

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  • Vehicle trajectory prediction method and device based on driver's control intention and system
  • Vehicle trajectory prediction method and device based on driver's control intention and system
  • Vehicle trajectory prediction method and device based on driver's control intention and system

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Embodiment

[0048] Such as figure 1 Shown is a schematic structural diagram of this embodiment. Among them, computer 1, CAN bus 2, accelerator pedal 3, brake pedal 4, steering wheel 5, camera 6, radar 7, GPS8.

[0049] Such as figure 2 As shown, the vehicle trajectory prediction method based on the driver's manipulation intention in this embodiment specifically includes the following steps:

[0050] Step 1: Use the on-board equipment and roadside equipment to obtain the current state of motion (position, speed, acceleration) of the vehicle on the road and the driver's operation intention (acceleration pedal, brake pedal and turn signal);

[0051] Step 2: Obtain the driver's expected control quantity sequence, that is, quantify the driver's control intention.

[0052] In this embodiment, the quadratic theory is used to express the utility function of the driver's expected control amount as a discretized form: In the formula, Q is the error weight of the state quantity, R is the weigh...

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Abstract

The present invention relates to a vehicle trajectory prediction method and device based on the driver's control intention, and a system. The invention comprehensively considers the driving intentionand the real-time motion state of an automobile to make short-term predictions on the trajectory, speed and acceleration parameters of the automobile, and reduces the disturbance influence of driver'scontrol behaviors on the prediction of the automobile motion state. The method is easy to implement, has low algorithm complexity, is widely used in driving simulators, automobile collision hazard early-warning, and automobile safety assisted driving systems, and is used to evaluate and predict trajectory crossing between moving vehicles and the collision risk.

Description

technical field [0001] The present invention relates to a prediction method, device and system, belonging to the technical field of automobile control, in particular to a vehicle trajectory prediction method, device and system based on the driver's manipulation intention. Background technique [0002] The prediction of vehicle motion state is a key technology for vehicle safety assisted driving. Through the prediction of road vehicle trajectory, it is possible to analyze whether there is a possibility of intersection with the trajectory of adjacent vehicles, so as to judge the current driving safety state. [0003] At present, the prediction of vehicle trajectory is based on the relative motion state parameters between adjacent vehicles to calculate the inter-vehicle safety distance threshold in real time, and then compare it with the actual inter-vehicle distance to obtain the current driving safety state. When the actual inter-vehicle distance is detected to be greater tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/0214G05D1/0221G05D1/0223G05D1/0246G05D1/0257G05D1/0276G05D1/0278G05D2201/0213
Inventor 彭理群喻恺卢赫喻卓成王园园
Owner EAST CHINA JIAOTONG UNIVERSITY
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