发明名称 |
METHOD FOR OPERATING A VARIABLE DISPLACEMENT COMPRESSOR AND SYSTEM WITH A VARIABLE DISPLACEMENT COMPRESSOR |
摘要 |
A system and a method for operating a variable-displacement compressor are provided wherein a volume of a compression chamber of at least one cylinder is varied during a compression cycle, wherein during the cycle the at least one cylinder is alternately coupled to a low pressure side and a high pressure side of the compressor. A first thermodynamic state of the low pressure side and a second thermodynamic state of the high pressure side can be estimated and a current compression ratio ( v in v out ) of the compressor can be estimated. Accordingly, a compressor displacement (D) as a function of the compression ratio ( v in v out ) can be calculated. From this, a compressor torque (M) depending on the calculated displacement (D) can be computed, and the compressor torque (M) can be provided to a control unit for operating the compressor or an engine coupled to the compressor.
|
申请公布号 |
US2010145527(A1) |
申请公布日期 |
2010.06.10 |
申请号 |
US20070532155 |
申请日期 |
2007.03.20 |
申请人 |
SJOEBERG ANDREAS;ROUPE ANDREAS |
发明人 |
SJOEBERG ANDREAS;ROUPE ANDREAS |
分类号 |
F25B49/02;F04B27/18;G05D23/00 |
主分类号 |
F25B49/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|