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Method, device and system for controlling auxiliary power unit of vehicle, and engineering machine

An auxiliary power unit and power unit technology, applied in the control method, equipment, system and construction machinery field of vehicle auxiliary power unit, can solve the problem of slow output power response time, etc., and achieve the effect of reducing frequent adjustment and short response time

Active Publication Date: 2014-04-09
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a control method, equipment, system and engineering machinery of a vehicle auxiliary power unit, which are used to solve the problem of slow response time of the vehicle APU output power

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  • Method, device and system for controlling auxiliary power unit of vehicle, and engineering machine
  • Method, device and system for controlling auxiliary power unit of vehicle, and engineering machine
  • Method, device and system for controlling auxiliary power unit of vehicle, and engineering machine

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Embodiment Construction

[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.

[0022] figure 1 It is a flow chart of the control method of the vehicle APU provided by the present invention. The APU includes an engine and a generator, such as figure 1 As shown, after the APU of the vehicle is started, it receives the current vehicle demand power Preq, then compares the received Preq with the preset economic output power segment interval of the APU, and determines the output power of the APU according to the comparison result, so that The APU output power satisfies Preq.

[0023] Before the APU is started, the method provided by the present invention further includes receiving the current vehicle battery power percentage SOC, and then comparing the SOC wi...

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Abstract

The invention discloses a method, a device and a system for controlling the auxiliary power unit of a vehicle, and an engineering machine. The method comprises the following steps of: receiving the current needed power Preq of the vehicle after the auxiliary power unit (APU) is started; comparing the current needed power of the vehicle with a preset economic output power segmentation interval of the auxiliary power unit, and determining the output power of the auxiliary power unit according to the compared result to enable the output power of the auxiliary power unit to meet the current needed power of the vehicle. According to the method, the device and the system for controlling the auxiliary power unit of the vehicle, and the engineering machine disclosed by the invention, segmentation control is performed on the output power of the APU, thus realizing short response time of the output power of the APU, and therefore, the output power of the APU can follow the current needed power of the vehicle in time; moreover, frequent adjustments on the rotational speed of an engine and the torque of a power generator can be reduced.

Description

Technical field [0001] The present invention relates to the control technology of an auxiliary power unit (Auxiliary Power Unit, APU), and specifically relates to a control method, equipment, system and engineering machinery of a vehicle auxiliary power unit. Background technique [0002] The auxiliary power unit APU can provide additional auxiliary power for conventional pure electric vehicles or series hybrid vehicles to achieve the purpose of extending the mileage of the vehicle. The auxiliary power unit APU is composed of an engine, a generator, a converter, an engine controller, and an APU controller. It is assembled on a series hybrid vehicle or an extended-range electric vehicle to provide the vehicle with greater continued driving capability. [0003] Most of the existing technologies related to the auxiliary power unit APU focus on the closed-loop adjustment method of the engine and the generator in the APU system, and the technical solution focuses on how to reduce the sh...

Claims

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Application Information

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IPC IPC(8): B60W20/00B60W30/188B60W20/10
CPCB60W10/06B60W10/08B60W20/10B60W2510/244B60W2710/0644B60W2710/083
Inventor 李伟陈华袁英敏张文蓉陶泽安
Owner ZOOMLION HEAVY IND CO LTD
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