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. 31, 2011
Filed:
Jan. 21, 2009
Paolo Casasso, Cuneo, IT;
Stefano Cassani, Turin, IT;
Angelo Argento, Turin, IT;
Filippo Parisi, Turin, IT;
Andrei Kanev, Turin, IT;
Paolo Casasso, Cuneo, IT;
Stefano Cassani, Turin, IT;
Angelo Argento, Turin, IT;
Filippo Parisi, Turin, IT;
Andrei Kanev, Turin, IT;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A glow plug control unit is provided that includes a first switch for connecting power supply lines to a glow plug. The glow plug control unit further includes a voltage measurement unit for measuring the voltage at the power supply lines. A current measurement unit is built for measuring the current through the first switch and a control circuit is built for controlling the first switch and, in a current control mode, for regulating the current through the first switch.