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Control method of automobile variable-displacement compressor

A control method and compressor technology, applied in pump control, liquid variable capacity machinery, mechanical equipment, etc., can solve the problems of engine shock, influence on engine power, large fluctuation of compressor working torque, etc., and reduce automobile fuel consumption. , the effect of maintaining stability

Active Publication Date: 2018-02-23
BRILLIANCE AUTO
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Problems solved by technology

[0003] In the existing automobile air conditioning control, when the comfort of the automobile air conditioner is high, it is necessary to start and stop the air conditioner frequently, and the fluctuation of the working torque of the compressor is large, and the impact on the engine at the moment of starting affects the power of the engine

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  • Control method of automobile variable-displacement compressor
  • Control method of automobile variable-displacement compressor
  • Control method of automobile variable-displacement compressor

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Embodiment Construction

[0033] A method for controlling a variable-displacement compressor for an automobile, the control system of the variable-displacement compressor includes an automatic air-conditioning control module, and the automatic air-conditioning control module is connected to a system pressure sensor, an evaporator temperature sensor, and an ambient temperature sensor for signals, It is also connected to the engine control system through the bus, and electrically connected to the controller coil of the compressor; the specific control method is as follows:

[0034] When the compressor start button is operated, the control system first judges the compliance of the requested torque, outdoor temperature, evaporator temperature and system pressure. Once again, follow the steps below to enter the opening process;

[0035] First, increase the idle speed, send an idle speed increase signal to the engine control system through the bus, and increase the idle speed by 100 rpm; wait for 100ms;

[...

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Abstract

The invention discloses a control method of an automobile variable-displacement compressor. Before an air conditioner is started, conformance judgment of request torque, outdoor temperature, evaporator temperature and system pressure is conducted first, and when all the data meets requirements, the air conditioner is started by increasing the idle speed and auxiliary torque. The method effectivelysolves the problems that an existing compressor is large in work torque fluctuation, an engine is impacted at the moment of start, and the dynamic property of the engine is influenced.

Description

technical field [0001] The invention belongs to the field of automobile air-conditioning control, and in particular relates to a method for controlling a variable-displacement compressor of an automobile. Background technique [0002] Automobile air-conditioning compressor is the core component of automobile air-conditioning system and the power source of the entire air-conditioning system. The current common automotive air-conditioning compressors can be divided into two types: fixed-displacement compressors and variable-displacement compressors according to whether the displacement can be adjusted. kind. Compared with the internal control variable displacement compressor, the external control variable displacement compressor can effectively solve the problems of slow response time, poor adjustment accuracy, insignificant energy saving effect, system oscillation and evaporator frosting. Externally controlled variable displacement compressors have been widely used in mid-t...

Claims

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Application Information

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IPC IPC(8): B60H1/00F04B49/06
CPCB60H1/0045B60H1/00735B60H1/00814F04B49/065F04B2201/1202F04B2203/0605
Inventor 池鹏詹德凯李洪雷
Owner BRILLIANCE AUTO
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