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PHEV traffic light intersection passing control method based on model predication control

A technology of model predictive control and control method, which is applied in the field of vehicles to achieve the effects of improving fuel economy, realizing energy saving and emission reduction, and beautifying the environment

Inactive Publication Date: 2018-12-07
FUZHOU UNIV
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Problems solved by technology

Many studies are unilaterally studying the above two points, and few combine the two to control

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  • PHEV traffic light intersection passing control method based on model predication control
  • PHEV traffic light intersection passing control method based on model predication control
  • PHEV traffic light intersection passing control method based on model predication control

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Embodiment Construction

[0052] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0053] The present invention provides a PHEV traffic light crossing control method based on model predictive control, such as figure 1 As shown, the method mainly consists of velocity trajectory prediction and an energy management strategy based on model predictive control. In terms of speed trajectory optimization, a reasonable speed trajectory is planned by combining vehicle dynamic information and real-time traffic information, and the car drives according to the suggested speed trajectory. Such as figure 2 As shown, if the car is an unmanned car, it can automatically drive the car according to the suggested speed trajectory through PID control. If it is not unmanned, the driver needs to use the accelerator and brake pedals to make the car drive according to the reference speed of the dashboard. This method significantly reduces the...

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Abstract

The invention relates to a PHEV traffic light intersection passing control method based on model predication control. The PHEV traffic light intersection passing control method based on model predication control comprises the steps of obtaining the current running speed vc of an automobile and a distance d from a next intersection by using a vehicle-mounted monitoring system; obtaining real-time traffic signal information by using a wireless connection system, matched with a traffic facility, of the automobile; on the basis of the obtained information, processing the obtained information by using an automobile speed trajectory predication system to automatically predicate and optimize a future speed trajectory of the automobile; obtaining vehicle-mounted state information by using the vehicle-mounted monitoring system to calculate the current battery output power; according to the obtained speed trajectory, predicating traction power and demand torque needed by the automobile in a future finite time domain; on the basis of the model predication control, obtaining demand torque distribution control information in the driving process by using the speed trajectory as reference and lowest equivalent fuel consumption as a target; and driving the automobile to run. According to the PHEV traffic light intersection passing control method based on model predication control, the fuel economy of the automobile can be obviously improved, energy is saved, the emission is reduced, and the environment is beautified.

Description

technical field [0001] The invention relates to the vehicle field, in particular to a model predictive control-based PHEV traffic light crossing control method. Background technique [0002] In recent years, intelligent transportation systems have attracted great interest due to their unique energy and environmental benefits. As an integral part of intelligent transportation, one of the main applications of EAD (Eco-Approach and Departure) is to guide cars through intersections in an economical way. The fuel economy and emissions of the car are closely related to the acceleration, deceleration and idling of the car. In order to improve the fuel economy of the car, rapid acceleration, rapid deceleration and idling should be avoided as much as possible. Rapid acceleration, rapid deceleration and idling conditions often occur at forks with traffic lights. Therefore, formulating a reasonable speed trajectory can increase the probability of a car passing the fork and greatly imp...

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Application Information

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IPC IPC(8): B60W20/15B60W10/06B60W10/08B60W30/18
CPCB60W10/06B60W10/08B60W20/15B60W30/18154B60W2510/0638B60W2510/0657B60W2510/081B60W2510/083B60W2510/244B60W2520/10B60W2554/00B60W2710/0666B60W2710/083B60W2720/10Y02T10/40Y02T10/62Y02T90/14
Inventor 林歆悠周坤诚任静苏炼夏斌
Owner FUZHOU UNIV
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