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, 1981
Filed:
May. 05, 1978
Charles L Rosen, Teaneck, NJ (US);
Other;
Abstract
The propulsion system includes a battery powered or combustion powered prime mover and a secondary or auxiliary mover. When the prime mover is battery powered, the secondary mover is controlled so as to optimize the use of the electrical energy stored in the batteries, while using the secondary mover, when necessary, to supply auxiliary power when required for vehicle performance. This is done by keeping the prime mover operating, primarily, in the low to moderate current range, where energy loss in the battery is low and controlling the secondary mover to supply as much power as is necessary to keep the battery drain as near as possible to a preselected threshold value. When the prime mover is combustion powered, the secondary mover is similarly controlled to keep the prime mover within the torque range of most efficient operation. The propulsion system is used either to power a hybrid low pollution vehicle or to provide auxiliary power to a battery operated vehicle to extend its range or enable it to pull occasional heavy loads (e.g. a trailer).