The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 1996
Filed:
Apr. 22, 1994
Nippondenso Co., Ltd., Kariya, JP;
Abstract
The air conditioning apparatus for electric automobiles includes a refrigerant cycle having a refrigerant compressor driven by an electric motor, a refrigerant pressure sensor for detecting the high-pressure-side pressure of the refrigerant cycle, and an air conditioner control apparatus. The rotational speed of the electric motor is determined on the basis of a variably controlled frequency. The refrigerant pressure sensor detects the pressure of the refrigerant compressed by the refrigerant compressor and flowing toward the heat exchanger for heating and outputs it to an air conditioner control apparatus. The air conditioner control apparatus controls an inverter on the basis of the value detected by the refrigerant pressure sensor.