Vehicle auxiliary power unit control method, device, system and construction machinery

A technology for auxiliary power units and power units, which is applied in hybrid vehicles, motor vehicles, transportation and packaging, etc. It can solve the problems of slow output power response time and achieve the effect of reducing frequent adjustments and short response time

Active Publication Date: 2016-02-17
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • 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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  • Vehicle auxiliary power unit control method, device, system and construction machinery
  • Vehicle auxiliary power unit control method, device, system and construction machinery
  • Vehicle auxiliary power unit control method, device, system and construction machinery

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended 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, the current vehicle demand power Preq is received, and then the received Preq is compared with the preset economic output power segment interval of the APU, and the output power of the APU is determined according to the comparison result, so that APU output power meets Preq.

[0023] Wherein, before starting the APU, the method provided by the present invention further includes receiving the current vehicle battery power percentage SOC, and ...

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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 auxiliary power unit (Auxiliary Power Unit, APU), in particular, to the control method, equipment, system and engineering machinery of vehicle auxiliary power unit. Background technique [0002] 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, etc. It is assembled on a series hybrid vehicle or an extended-range electric vehicle, and can provide the vehicle with greater driving capability. [0003] Most of the existing technologies related to auxiliary power unit APU focus on the closed-loop adjustment method of the engine and generator in the APU system, and the focus of the technical solution is how to reduce the shock in APU ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/10B60W30/188
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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