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. 26, 1998
Filed:
May. 02, 1996
Kevin J Donegan, Merrimack, NH (US);
Dennis E Hartzell, Wertogue, CT (US);
David Sandberg, Cambridge, MA (US);
Chrysler Corporation, Auburn Hills, MI (US);
Abstract
A hybrid vehicle utilizes a power unit to store and convert power between a turbine alternator, flywheel and traction motor. The power unit includes a water cooled heater exchanger for cooling power transistors used to switch stored and generated power between the peripheral machines. A pump control system for pumping fluid through the heat exchanger includes a fluid pump, a control circuit connected to the fluid pump for operating same, and a power source having a nominal operating range and transients. The control circuit includes a shut off circuit for sensing power level on the power source and turning off the fluid pump when the transients are above a first predetermined level and turning on the fluid pump when the transients return below a second predetermined level.