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Drive control method of electromechanical flywheel hybrid power system

A hybrid power system and motor controller technology, applied in hybrid vehicles, motor vehicles, control devices, etc., can solve problems such as the adverse effect of battery economical battery life, avoid large current discharge, improve economical and The effect of improving safety performance

Inactive Publication Date: 2020-09-18
SHANDONG UNIV OF TECH
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  • Application Information

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Problems solved by technology

On the one hand, it can meet the driving needs of the vehicle with high driving power and improve the working efficiency of the vehicle. On the other hand, it solves the adverse effects of the large current discharge of the battery on the economy of the battery and the service life of the battery under the driving condition of sudden load changes. question

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  • Drive control method of electromechanical flywheel hybrid power system
  • Drive control method of electromechanical flywheel hybrid power system
  • Drive control method of electromechanical flywheel hybrid power system

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] figure 1 It is a schematic diagram of the electromechanical flywheel hybrid power system, including: CAN bus, vehicle controller, flywheel and its brake, first clutch and its controller, second clutch and its controller, first power source motor and its controller, second Second power source motor and its controller, planetary row and its brake, speed change mechanism and its controller;

[0019] The vehicle controller collects the status signals of the vehicle, flywheel, first power source motor, and second power source motor in real time through the CAN bus, and inputs factors for the built-in control strategy. Further, the vehicle controller determines the flywheel, The working mode of the first power source motor and the second power source motor, and output related control to the first clutch, the second clutch, the flywheel brake, the first power source m...

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Abstract

An electromechanical flywheel hybrid power system driving control method belongs to the field of electric vehicle control and is characterized in that a hybrid power system can be controlled to operate in various driving modes according to vehicle operation conditions. Under low driving power, the second power source motor is controlled to participate in vehicle driving, so that the economy of thevehicle can be improved; under medium driving demand power, the first power source motor and the second power source motor are controlled to jointly drive the vehicle to run, and the vehicle energy utilization efficiency is improved; and under high driving demand power, the first power source motor, the second power source motor and the flywheel are controlled to jointly drive the vehicle to run,the instantaneous high-power output advantage of the flywheel is utilized, large-amplitude fluctuation of motor and battery power under the working conditions of large load and sudden load change isreduced, so that the service life of a battery is prolonged.

Description

technical field [0001] The invention relates to the field of electric vehicle control, and relates to a drive control method for an electromechanical flywheel hybrid power system integrating a flywheel, a motor, a clutch and a planetary gear mechanism. Background technique [0002] At present, the development of electric vehicles has become an important measure in response to global environmental pollution and energy crisis. Most current electric vehicle drive methods adopt a single-motor drive scheme, which has the advantages of simple structure, low cost, and easy control. However, the single-motor drive scheme also has disadvantages: since the single-motor is selected by the vehicle dynamic performance index, its reserve power is relatively large, and the vehicle's economy is poor when the vehicle works at low and medium power. Dual motors are used to drive the vehicle, and the differential design of the motor parameters can effectively solve the problems caused by the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W20/20B60W10/02B60W10/04B60W10/10B60W10/24B60W40/105
CPCB60W10/02B60W10/04B60W10/10B60W10/24B60W20/00B60W20/20B60W40/105B60W2540/10B60W2540/12
Inventor 孙宾宾李文涛胡自豪张铁柱葛文庆李波
Owner SHANDONG UNIV OF TECH
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