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:
Sep. 08, 1998
Filed:
Oct. 19, 1995
Yoshihide Nii, Fuji, JP;
Nobuyuki Taki, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A generator controller used in hybrid electric vehicle. The battery current is sampled and accumulated for T seconds. The obtained accumulated value is used to determine the control target of the generated power. Since the generated power is controlled according to the accumulated current of the battery which fits the battery's characteristic compared to the charged-and-discharged power, the battery's state of charge (SOC) can be more accurately controlled within the target zone. When the SOC of the battery is initially outside the target zone, the SOC is adjusted within the target zone by forcibly discharging or charging the battery. The precision of SOC control can be improved compared to when the SOC of the battery is controlled using the charged-and-discharged power.