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:
May. 17, 2022
Filed:
Jan. 13, 2021
Mahle International Gmbh, Stuttgart, DE;
Ernesto Jose Gutierrez, Amherst, NY (US);
William R. Bradley, Batavia, NY (US);
Richard Bottom, Burt, NY (US);
MAHLE International GmbH, Stuttgart, DE;
Abstract
An electromagnetic clutch () of an air conditioning compressor (), in particular for a motor vehicle (), transmits a torque to a drive shaft () of the compressor () depending on an electric current (I) being fed to clutch coils () of the electromagnetic clutch () to generate an electromagnetic clutch force. According to a control method (), a slippage of the electromagnetic clutch () is determined by a difference between the rpms of the electromagnetic clutch () and of the drive shaft (), and is monitored by a slippage sensor (). The electric current (I) and the resulting clutch force are adjusted dependent on slippage by a pulse width modulation controller () of the compressor (). The pulse width modulation controller () is electrically connected to the clutch coils () and modulates a pulse width of the electric current (I) fed to the clutch coils ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile