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:
Feb. 24, 2004
Filed:
Sep. 26, 2002
Takehiko Shioda, Saitama, JP;
Yukitaka Saito, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
A navigation system of a hybrid car retrieves a route to detect whether any restricted area forbidden for automobiles that emit exhaust gases is on the route or not. Before the hybrid car arrives at the restricted area, an electric motor is driven by a gasoline engine portion to charge a battery portion. After the hybrid car arrives at the restricted area, only the electric motor is operated by electric power of the battery portion so that the hybrid car can pass through the restricted area. As a result, the hybrid car can arrive at a destination by the shortest distance without bypassing the restricted area, and the environment of the restricted area can be protected because the gasoline engine portion is not operated in the restricted area.