Abstract: A
novel variable displacement compressor (VDC) for automotive air
conditioner (AAC) is introduced, which inherits the advantages of
common wobble plate type VDC. It has fewer parts and makes less
noise, and instead of pneumatic valve the displacement is
controlled by electronic control valve. In order to know the
control mechanism well and get a good control effect, a
mathematical model for the variable displacement mechanism is
developed according to the geometrical and kinematical
information of the compressor. Using the model, the effect of
relevant parameters on variable displace control is estimated.
It is helpful to make the optimum decision in the flow control
of AAC. As the novel displacement control device, the structure
and control rule of electronic control valve is introduced. It
can get better effect than the conventional pneumatic valves.
And by using this new electronic control device, the optimum
systemic control of AAC is available.
Key words: Displacement control Kinetic
analysis Automotive air conditioner (AAC) Variable
displacement
compressor (VDC)
Manuscript
received on March 27, 2001; revised manuscript June 15, 2001
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