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:
Dec. 27, 2016
Filed:
Nov. 17, 2011
Xiangying Liu, Ann Arbor, MI (US);
Chuck DE Biasi, Plymouth Township, MI (US);
Ravi Atluru, Westland, MI (US);
Frederick Shell, Detroit, MI (US);
Alan Francis Judge, Farmington Hills, MI (US);
Sheran Anthony Alles, Livonia, MI (US);
Xiangying Liu, Ann Arbor, MI (US);
Chuck De Biasi, Plymouth Township, MI (US);
Ravi Atluru, Westland, MI (US);
Frederick Shell, Detroit, MI (US);
Alan Francis Judge, Farmington Hills, MI (US);
Sheran Anthony Alles, Livonia, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A control circuit receives a starting signal from a powertrain control module of a vehicle and delays the coupling of the main starting current from the battery to the starting motor until a reduced current in an alternative flow path is provided to the starter motor, initiating its motion. In a preferred, the pre-start sequence is controlled by a microprocessor which provides a control signal to a solid state switch coupled by a conductor providing current limiting resistance between the battery supply and the starter motor for a predetermined period of time. Subsequent to the pre-spin period, the control circuit provides a signal to a different solid state switch which activates the starter solenoid, in turn, coupling the battery to the starter motor and engaging the pinion gear with the ring gear.