Method and device for guiding vehicle speed

A technology of vehicle speed guidance and planning, applied in the field of intelligent transportation

Active Publication Date: 2021-04-13
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the existing speed guidance schemes are mainly aimed at a single intersection, in reality the vehicle will pass through multiple intersections

Method used

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  • Method and device for guiding vehicle speed
  • Method and device for guiding vehicle speed
  • Method and device for guiding vehicle speed

Examples

Experimental program
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Embodiment Construction

[0074] In the embodiment of the present application, during the process of vehicle speed guidance, the network side performs the guidance of the vehicle speed. For example, after turning on the car navigation, or turning on the navigation software associated with the vehicle, and planning the target driving route of the vehicle, it means that the vehicle enters the speed guidance range. Such as figure 2 As shown, each vehicle that enters the range of vehicle speed guidance will report vehicle motion status information, such as position and speed, to the network side in real time. In this way, the network side can calculate in real time based on the vehicle driving state information uploaded by each vehicle in real time, combined with the energy consumption associated with the vehicle and the weight of the maximum endurance time, the traffic state information of each vehicle's target driving route, and the signal light phase information, etc. The suggested speed of each vehic...

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Abstract

The present application discloses a vehicle speed guidance method and device, including: obtaining the target driving route of the target vehicle, and the weight associated with the target vehicle; obtaining signal lamp phase information on the target driving route, and The speed on each road section divided by the signal lamp; according to the length of each road section on the target driving line, the speed on each road section and the phase information of the signal lights between each road section, determine the candidate vehicle speed guidance scheme; according to each The travel time and / or vehicle speed on each road section in a candidate speed guidance scheme, determine the energy consumption corresponding to each candidate speed guidance scheme, and according to the energy consumption corresponding to each candidate speed guidance scheme, the sum of the passage time of all road sections As well as the weights of the energy consumption and the maximum endurance time, a vehicle speed guidance scheme is selected from the candidate vehicle speed guidance schemes.

Description

technical field [0001] The present application relates to the field of intelligent transportation, in particular to a vehicle speed guidance method and device. Background technique [0002] Speed ​​guidance means that when a vehicle is about to enter an intersection, the vehicle speed change limit, driving safety limit, etc. are used as constraints, and according to the real-time status of the intersection signal lights, the vehicle is provided with a suggested driving speed to reduce the number of vehicle stops and waiting time. speed guide as figure 1 As shown, if there is no speed guidance, when the vehicle is driving at its own speed, it will be a red light when it reaches the intersection. If there is speed guidance, the vehicle will be provided with a suggested speed when the vehicle enters a certain range. After the vehicle accelerates or decelerates, the vehicle can be guaranteed When arriving at the intersection, the phase of the signal light is green, and the vehi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/0962G08G1/01
CPCG08G1/0125G08G1/0137G08G1/0962
Inventor 张喆
Owner CHINA MOBILE COMM LTD RES INST
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