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Control method of auxiliary power unit in serially connected nixed power electromobile

An auxiliary power unit, hybrid technology, applied in hybrid vehicles, engine control, motor vehicles, etc., can solve problems such as single form, inability to adapt to changes in the state or type of power batteries, and inability to flexibly change parameter values.

Inactive Publication Date: 2007-12-19
BEIJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

However, on the one hand, the existing APU control method has a single form: either manual control or automatic control, which cannot adapt to complex or special control requirements; on the other hand, the power battery SOC on which the existing APU control method is based (State of charge) parameter values ​​cannot be changed flexibly, and cannot adapt to changes in the state or type of the power battery

Method used

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  • Control method of auxiliary power unit in serially connected nixed power electromobile
  • Control method of auxiliary power unit in serially connected nixed power electromobile
  • Control method of auxiliary power unit in serially connected nixed power electromobile

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawings 1-2.

[0025] The device of the present embodiment is shown in Figure 1, and the device among the present invention mainly comprises APU controller, the engine that contains electronic throttle and electronic control unit (ECU), generator, power battery and battery management system, parameter setting Modules, drive motors and their controllers. The starter motor, electronic throttle, engine ECU, generator coolant temperature sensor, battery management system and drive motor controller are all connected to the APU controller to form a control network. In addition, there is also a parameter setting module electrically connected to the APU controller, through which the APU initial rotational speed given value, the electric battery SOC setting threshold and the maximum charging current can be input to the APU controller. The parameter setting module is composed of four potentio...

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Abstract

The present invention relates to control of auxiliary power unit (APU), and is especially control method of auxiliary power unit in serially connected mixed power electromobile. The control method is to select the running mode of mixed power electromobile, pure electrically driving mode or mixed driving mode, based on the residual electricity quantity of the power battery. In mixed driving mode, the engine is started and stopped automatically and the cold engine is idly warmed up. During charging, the APU runs in the most economical region and the APU system parameters are monitored and displayed in the vehicular information system. The control method of the present invention can raise the efficiency of the whole power system, raise the economical efficiency of fuel oil, optimize the engine exhaust and increase the service life of the power batter and vehicle running mileage obviously.

Description

Technical field [0001] The present invention relates to an auxiliary power unit (APU, including an engine and a generator) control method, specifically a series hybrid electric vehicle APU control method. Background technology [0002] With the increasingly serious environmental pollution problems and oil resource shortages, governments around the world, especially those in industrially developed countries, major automobile companies and scientific and technological personnel in the world are trying their best to develop new, environmentally friendly vehicles, such as electric vehicles. It was in this situation that it came about. Electric vehicles mainly include pure electric vehicles, fuel cell vehicles, and hybrid vehicles. However, pure electric vehicles still have many shortcomings in power battery technology and fast charging technology, and fuel cell vehicles have not made satisfactory breakthroughs in hydrogen production and storage technology, which limits the prom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00F02D29/00H01M10/44B60W20/10
CPCY02E60/12Y02E60/10
Inventor 冯能莲周大森王绍林胡志洁俞黎明
Owner BEIJING UNIV OF TECH
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