Control method and control system for vehicle air conditioner compressor

An air-conditioning compressor and vehicle air-conditioning technology, which is applied to vehicle components, air handling equipment, heating/cooling equipment, etc., can solve the problem of inaccurate displacement control of air-conditioning compressors, and achieve accurate displacement control and precise target temperature Effect

Active Publication Date: 2015-03-18
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0005] In order to solve the problem in the prior art that the control device of the externally controlled variable displacement compressor is not accurate enough to control the displacement of the air conditioner compressor, the present invention provides a control method and control system for the vehicle air conditioner compressor

Method used

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  • Control method and control system for vehicle air conditioner compressor
  • Control method and control system for vehicle air conditioner compressor
  • Control method and control system for vehicle air conditioner compressor

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Embodiment Construction

[0042] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] The vehicle air-conditioning compressor plays the role of compressing and driving the refrigerant in the air-conditioning refrigerant circuit. The temperature of the air flowing out of the air-conditioning outlet determines the temperature inside the vehicle. The target temperature of the air-conditioning outlet is determined by the target temperature of the evaporator. The target temperature is determined by the amount of refrigerant discharged from the air conditioner compressor, so the displacement of the air conditioner compressor can be controlled according to...

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Abstract

The invention provides a control method and a control system for a vehicle air conditioner compressor. The control method comprises the following steps: acquiring the set temperature of an air conditioner, the internal and external temperatures of a vehicle, and the sunshine radiation; determining a target temperature at the air outlet of the air conditioner according to the set temperature of the air conditioner, the internal and external temperatures of the vehicle, and the sunshine radiation; judging whether the air conditioner enters a fuel-saving mode or not; if so, further judging whether the vehicle has an acceleration, if so, lowering the displacement of the air conditioner compressor; if the air conditioner does not enter the fuel-saving mode or the vehicle does not have the acceleration after the air conditioner enters the fuel-saving mode, determining the target temperature of an evaporator according to the external temperature of the vehicle and the target temperature at the air outlet of the air conditioner; controlling the displacement of the air conditioner compressor according to the target temperature of the evaporator. By adopting the control method and the control system for the vehicle air conditioner compressor provided by the invention, the displacement of the air conditioner compressor is controlled more accurately.

Description

technical field [0001] The invention relates to the field of vehicle air-conditioning control, in particular to a control method and a control system for a vehicle air-conditioning compressor. Background technique [0002] With the rapid development of the automobile industry, people's requirements for the performance and comfort of automobile air conditioners are constantly increasing. The existing non-independent fixed-displacement compressor automotive air-conditioning system has been difficult to meet user requirements. On the one hand, in the case of large temperature fluctuations in the car, the irreversible loss caused by the frequent start and stop of the non-independent fixed-displacement compressor automotive air-conditioning system increases the system energy consumption; on the other hand, the fixed-displacement compressor Periodic clutching has seriously disturbed the work of the car engine. In order to solve the above problems and meet the load requirements o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00
CPCY02T10/88B60H1/3205B60H1/3208B60H2001/3255B60H2001/3266B60H2001/327
Inventor 解波杨琴润黄少堂
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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