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A vehicle driving behavior prediction model for unsignalized intersections with complete information

A technology of vehicle driving and prediction model, which is applied in the field of driving behavior research and can solve the problem that the accuracy of speed prediction needs to be further improved.

Active Publication Date: 2019-02-15
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the relationship between the driving decision-making model based on game theory and the influencing factors of driving behavior still needs further analysis, and most of the models set the acceleration of the vehicle as a constant, which is inconsistent with the current situation of the continuous change of acceleration and deceleration in the actual driving process of the vehicle. The accuracy of speed prediction needs to be further improved

Method used

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  • A vehicle driving behavior prediction model for unsignalized intersections with complete information
  • A vehicle driving behavior prediction model for unsignalized intersections with complete information
  • A vehicle driving behavior prediction model for unsignalized intersections with complete information

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Experimental program
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Embodiment approach

[0057] As an improved specific implementation, the step of judging the safety state between vehicles in the second step is as follows:

[0058] Step 21, determine the priority of the vehicle, and calculate the time required for the vehicle to reach the virtual conflict point in the motion state of the i-th moment by the following formula:

[0059]

[0060] In the formula, Indicates the time difference between the time required for the P1 vehicle and the P2 vehicle to reach the virtual conflict point in the motion state at time i calculated from the angle of the P1 vehicle, The time difference between the time required for the P1 vehicle and the P2 vehicle to reach the virtual conflict point in the motion state at time i calculated from the perspective of the P2 vehicle, Indicates the time required for the P1 vehicle to reach the virtual conflict point in the motion state of time i, Indicates the time required for the P2 vehicle to reach the virtual conflict point in t...

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Abstract

The invention discloses a vehicle driving behavior prediction model of an unsignalized intersection under complete information. 1, judging the safety state of the vehicle at the time by maintaining the speed of the vehicle at the current time and judging whether there is collision before the two vehicles reach the virtual conflict point when the vehicle is accelerated; 2, establishing a driving behavior decision model based on game theory; 4, collect that strategies obtain at each time in the step 3, and forming a set as a driving behavior decision model. The vehicle driving behavior prediction model of the unsignalized intersection under the complete information of the invention can effectively construct a driving behavior prediction model through the settings of the steps 1, 2, 3 and 4.

Description

technical field [0001] The invention relates to the field of driving behavior research, and is suitable for microscopic simulation, design optimization, and driver assistance system design of unsignalized intersections, and specifically relates to a vehicle driving behavior prediction model for unsignalized intersections under complete information. Background technique [0002] The number of motor vehicles in my country continues to grow, and the traffic safety problems it brings cannot be ignored. Because there is no signal control at unsignalized intersections, its traffic conditions are complex and the frequency of traffic conflicts is relatively high. Compared with intersections controlled by signal lights, there are more potential safety hazards. Compared with non-motor vehicles and pedestrians, motor vehicles have a higher speed and a wider range of speed changes. When they face traffic conflicts, they need more reaction time and avoidance time to avoid conflicts. The...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G08G1/16
CPCG06Q10/04G08G1/16
Inventor 张钊王京华鲁光泉
Owner BEIHANG UNIV