About 34 results
https://drivepatents.com/patents/1095707 · 28 May 2003
An air conditioner for air conditioning the interior of a compartment having a compressor (C), an electric motor (84), a detection device (92), a rotation speed sensor (96), and a controller (71, 72) is provided. The compressor compresses refrigerant gas a...
https://drivepatents.com/patents/1098126 · 26 Feb 2003
In the vehicular air conditioning apparatus according to the present invention, for a drive source, either the vehicular engine or an electric motor may be selected and connected to the compressor. According to the control of the present invention, the mai...
https://drivepatents.com/patents/1101918 · 11 Sep 2002
The invention relates to a method for controlling a compressor (14) of a refrigerant circuit (10) of an air conditioning system of a motor vehicle, in which the instantaneous load torque is determined and compared with a maximum limit torque specified by a...
https://drivepatents.com/patents/1102091 · 4 Sep 2002
An all electric transport refrigeration system receives its compressor drive motor power and all other electrical power from a single on-board engine driven non-synchronous power system consisting of an engine driven synchronous generator 300. The generato...
https://drivepatents.com/patents/1102085 · 4 Sep 2002
Vehicle air conditioning systems (2) may include an electrically driven compressor (4, 6) that is electrically connected to an alternator (16) driven by a vehicle engine (18). The compressor may be driven in a first drive mode, in which a normal drive cont...
https://drivepatents.com/patents/1102666 · 7 Aug 2002
An apparatus controls a variable displacement compressor used in a refrigerant circuit. The compressor includes a drive shaft (6), which is rotated by an engine (E). When the drive shaft (6) rotates, the compressor compresses refrigerant sent from the exte...
https://drivepatents.com/patents/1103081 · 17 Jul 2002
A controller (70) for improving the durability of a compressor employed in a vehicle air conditioner without decreasing engine fuel efficiency. The controller detects the driving conditions of the vehicle and determines whether the engine (E) is in a rever...
https://drivepatents.com/patents/1108407 · 21 Nov 2001
A control valve (CV) is located in a variable displacement compressor that is installed in a refrigerant circuit. The control valve (CV) operates such that the pressure difference between first and second pressure monitoring points (P1, P2) in the refriger...
https://drivepatents.com/patents/1109442 · 10 Oct 2001
A method for controlling a clutch 24 for an engine-powered system 26 in an automotive vehicle 10 is provided. In one embodiment, the engine-powered system 26 is an air conditioner system. The method includes the step 58 of generating an engine roll signal ...
https://drivepatents.com/patents/1110597 · 29 Aug 2001
A displacement control apparatus controls the displacement of a variable displacement compressor (CP). A drive shaft (16) of the compressor (CP) is driven by an engine (25). Torque (Tr) acting on the drive shaft (16) represents the displacement. The appara...