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:
Apr. 05, 2005
Filed:
Jun. 27, 2003
Noritake Mitsutani, Toyota, JP;
Tomoyuki Uchiyama, Toyota, JP;
Noritake Mitsutani, Toyota, JP;
Tomoyuki Uchiyama, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
The electronic control unit sets an initial value of an inertia torque equivalent flow rate Qmg as an air flow equivalent to an inertia torque that acts on rotational elements related to a crankshaft, and a diminishing rate thereof, based on a shift position SP and coolant temperature Tw after the engine is cranked by a motor generator and the engine speed reaches an idle speed. The electronic control unit controls an the engine speed using an idle speed maintaining flow rate Qisc which is obtained by subtracting the inertia torque equivalent flow rate Qmg from a target idle speed maintaining flow rate Qisc*.