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Control method for vehicle power-driven air conditioner compressor

A technology of electric air conditioning, control method, applied in the direction of pump control, machine/engine, heating and ventilation control system, etc.

Active Publication Date: 2013-06-26
AUTOMOTIVE RES & TESTING CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires repeated experiments to obtain the required sets of control parameters.

Method used

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  • Control method for vehicle power-driven air conditioner compressor
  • Control method for vehicle power-driven air conditioner compressor
  • Control method for vehicle power-driven air conditioner compressor

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Experimental program
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Embodiment Construction

[0034] Please refer to figure 1 As shown, it is a flow chart of the method of the present invention, the main steps include: defining a plurality of compressor operating power points 101 , calculating the heat load to be removed 102 and determining the operating area 103 of the compressor.

[0035] In the aforementioned steps of defining a plurality of compressor operating power points 101, as figure 2 As shown, a plurality of characteristic curves are displayed, including a compressor cooling room power curve 10, a compressor COP curve 20 and a motor output power curve 30, where the horizontal axis represents the compressor speed (rpm), and the vertical axis The coordinates correspond to different curves and have different meanings, which are the output power of the compressor, the ratio of the COP value of the compressor (that is, the output power) to the input power, and the output power of the motor.

[0036] There are four points A, B, C, and D defined on the compresso...

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Abstract

The invention discloses a control method for a vehicle power-driven air conditioner compressor, comprising the following steps: determining a plurality of compressor operating points according to a compressor cold room power curve and a motor output efficiency curve; dividing different operation regions by the compressor operating points, wherein each operation region is established with corresponding compressor controlled conditions; calculating target heat load required to be removed according to practical internal temperature of a coach when the air conditioner target temperature of the coach is set by a user; and determining the operating region of the compressor and the controlled conditions for operations according to the target heat load. The output power of the motor can be learned based on the determined controlled conditions so as to drive the compressor to operate, thus the air conditioner target temperature of the coach can be reached quickly.

Description

technical field [0001] The invention relates to a method for controlling the power value of a vehicle electric air conditioner compressor, in particular, dividing the operable range of the compressor into multiple areas in advance, and then determining how the compressor should operate according to the control strategy formulated in each area to achieve Constant temperature and stable air conditioning effect. Background technique [0002] Due to the limited natural oil resources and the astonishing increase in international oil prices in the past few years, various car manufacturers and research institutions related to vehicle technology have invested a lot of research capacity in research and development of energy-saving vehicles such as electric vehicles. [0003] In electric vehicles, an electric motor replaces the traditional internal combustion engine as the driving force for the compressor. Compared with the traditional internal combustion engine, the electric motor no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/00F04B49/06
Inventor 林博煦施骏达
Owner AUTOMOTIVE RES & TESTING CENT