Driving apparatus and method for hybrid vehicle

US6301529A · kind A · utility

Assignee

• Nissan Motor Co., Ltd. · JP

Inventors

• Hiroyuki Itoyama · Yokohama, JP
• Manabu Miura · Tokyo, JP
• Takashi Shirakawa · Yokohama, JP

Key dates

• Filing date: Jul 20, 2000
• Grant date: Oct 9, 2001
• Expiry date: Jul 20, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/945
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In driving apparatus and method for a hybrid vehicle, a controller is provided and programmed: to calculate a target driving force [tFd], the target driving force representing a target value of a vehicular driving force; to calculate a basic target engine speed [tNinb] on the basis of tFd, the basic target engine speed representing a basic target value of the engine speed; to calculate a power generation request quantity [tWg], the power generation request quantity representing a power to be generated by the motor/generator; to calculate a basic target engine torque [tTeg] on the basis of tFd, tWg, and tNinb, the basic target engine torque representing an engine torque to be developed when an output required for a vehicular drive and for a power drive of the motor/generator is developed at tNinb; to calculate a limit torque [tTlim] during an occurrence of a power generation request on the basis of tNinb, this limit torque representing a limit torque of the engine when the engine is driven at the tNinb, satisfying a demand for an exhaust performance of the engine; to set a target engine speed [tNin] to either tNinb or a value different from tNinb according to a result of comparison …