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Method for controlling displacement of air condition compressor of automobile

A displacement control method and automobile air-conditioning technology, which is applied in pump control, mechanical equipment, vehicle parts, etc., can solve problems such as torque impact of automobile engines, achieve stable output torque, and improve use efficiency

Active Publication Date: 2015-09-16
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the air conditioner compressor immediately resumes full displacement operation, which will cause a large torque impact on the car engine

Method used

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  • Method for controlling displacement of air condition compressor of automobile
  • Method for controlling displacement of air condition compressor of automobile
  • Method for controlling displacement of air condition compressor of automobile

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0046] Such as figure 1 As shown, a method for controlling displacement of an automobile air-conditioning compressor comprises the following steps:

[0047] The engine starts to run, and the air conditioner switch is turned on;

[0048] S100: judging whether the vehicle speed is 0, the vehicle speed is measured by the speed sensor arranged on the wheel.

[0049] If the vehicle speed is 0, execute the check and adjust procedure, such as figure 2 As shown, the inspection and adjustment procedure includes the following steps:

[0050] S101: Determine whether the engine speed is lower than the minimum speed:

[0051] If the engine speed is less than the minimum speed, the compressor operates at the minimum displacement;

[0052] If the engine speed is greater than the minimum speed, go to step S102.

[0053] S102: Determine whether the engine...

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Abstract

The invention discloses a method for controlling the displacement of an air condition compressor of an automobile. According to the method, a compressor slow start program, the minimum displacement, the maximum displacement and a compressor displacement recovery program can be applied to the air condition compressor of the automobile according to different speeds of the automobile, and therefore the displacement of the air condition compressor of the automobile can be adjusted according to running conditions of the automobile in time, the utilization efficiency of the compressor is improved, and it is also guaranteed that an automobile engine stably outputs torque to the compressor in the running process.

Description

technical field [0001] The invention belongs to the field of automobile air-conditioning control, in particular to a method for controlling the displacement of an automobile air-conditioning compressor. Background technique [0002] In recent years, research in the field of externally controlled variable displacement compressor control has been relatively active. The contents disclosed in Chinese application numbers 01111918.7, 200510111072.4, 201110135733.2, and 201220468901. Related elaboration. However, due to the different road conditions and driving speeds during the driving of the vehicle, the car engine will output different torques and be at different speeds. For example, when the vehicle is idling or at a low speed, the engine speed is low, and the compressor needs to consume the torque output by the engine when the air conditioner is turned on. At this time, the torque of the engine will increase instantly, and the engine speed will increase instantly, which will ...

Claims

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Application Information

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IPC IPC(8): F04B49/00B60H1/00
Inventor 徐庆春孙强柯胜涛
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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