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Hybrid electric vehicle energy conservation predictive control method based on traffic signal lamp information

A technology for hybrid electric vehicles and traffic lights, applied in hybrid electric vehicles, traffic control supervision, motor vehicles, etc., can solve the problems of maximizing efficiency, failing to achieve real-time optimization, and failing to meet control performance, etc., to achieve fuel economy and The effect of safety optimal control

Inactive Publication Date: 2015-05-06
HENAN POLYTECHNIC UNIV
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AI Technical Summary

Problems solved by technology

The traditional global optimal control algorithm dynamic programming and Pontryagin minimum principle control methods cannot achieve real-time optimal control because they need to know all future working conditions in advance.
Traditional rule-based control strategies fail to maximize efficiency
General feed-forward control (assuming a constant vehicle speed pattern) cannot achieve real-time optimal
The traditional instantaneous optimal control parameters are too affected by changes in future vehicle operating conditions and cannot meet the control performance

Method used

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  • Hybrid electric vehicle energy conservation predictive control method based on traffic signal lamp information
  • Hybrid electric vehicle energy conservation predictive control method based on traffic signal lamp information
  • Hybrid electric vehicle energy conservation predictive control method based on traffic signal lamp information

Examples

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Embodiment

[0068] Embodiment: Take the planetary gear type hybrid drive system as an example for illustration, such as figure 1 As shown; in this method, the first step is to determine the information model of traffic lights, the second step is vehicle modeling, the third step is the formula control strategy, the fourth step is online optimal control, the fifth step is weight parameter adjustment, and the second step is The six steps are to judge whether the target is satisfied; the principle of the method is as follows: figure 2 As shown, the specific control method includes the following steps:

[0069] Step 1) Determine the traffic signal light information model:

[0070] Select the observation site, set up the camera; record video images that meet the requirements; connect the camera and computer equipment with a video capture card; set the communication port, camera format, time and other information on the information collection software interface; open the detector to start dete...

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Abstract

The invention discloses a hybrid electric vehicle energy conservation predictive control method based on traffic signal lamp information. Real-time road grades and the traffic signal lamp information are acquired from the global positioning system and an intelligent transportation system to serve as system input, and a hybrid electric vehicle mathematic model is established to serve as a reference for predicting further vehicle states; a hybrid electric vehicle energy management optimal control problem is defined, and a functional equation for solving the optimum control quantity is provided; optimum control is fed back in real time to solve the optimum control quantity; under the condition of meeting hybrid electric vehicle storage battery electric quantity balance and rotation speed and torque physical limit restraints, energy flow of a hybrid electric vehicle is adjusted and optimized on line according to practical vehicle driving working conditions, the system optimal performance of the hybrid electric vehicle is obtained, a planetary gear mechanism is used to serve as an electric infinitely variable transmission, an engine is made to constantly work at the best operating point, road traffic information is used for predicting the charge state of a target storage battery, the energy flow of the hybrid electric vehicle is adjusted on line, and therefore the purposes of energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to a real-time optimal hybrid electric vehicle control method, in particular to a hybrid electric vehicle energy-saving predictive control method based on traffic signal light information. Background technique [0002] The increasingly severe global energy and environmental situation, especially the huge impact of the international financial crisis on the automobile industry, has pushed countries around the world to accelerate the strategic transformation of the automobile industry. In order to develop more energy-saving and environment-friendly automobiles and solve the above two problems, hybrid electric vehicles have been industrialized at present. Compared with traditional vehicles, hybrid vehicles have the redundancy of battery and fuel dual system drive. Using this redundancy, the operating point of the driving device can be adjusted to the optimal position, so as to achieve the goal of energy saving and emission reduction. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/26B60W40/00G08G1/097B60W20/11B60W20/12
CPCB60W10/26B60W40/00B60W2510/244B60W2520/10B60W2555/20G08G1/097
Inventor 余开江许孝卓胡治国杨俊起王允建谭兴国刘巍谢贝贝
Owner HENAN POLYTECHNIC UNIV
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