Document Type and Number:
Japanese Patent JP5199765
Kind Code:
B2
Abstract:
To provide a vehicular brake generating intake negative pressure without deteriorating mileage.
This vehicular brake has: an engine 10; a power generator (a first motor/generator 30); an electric motor (a second motor/generator 50); a power division mechanism 20 capable of transmitting output of the engine to drive wheels WFL, WFRand the power generator, and capable of transmitting output of the electric motor to the drive wheels; a boosting means 72 generating assist force in time of braking operation of a driver by use of the intake negative pressure of the engine; and a control means (a hybrid ECU 80 or the like) controlling each rotation speed of the engine or the like by use of a collinear diagram wherein correlation between the rotation speeds of respective rotation elements related to the engine, the power generator and the electric motor in the power division mechanism is represented by a straight line. The vehicular brake is provided with an intake negative pressure generation means (the hybrid ECU 80) controlling the rotation speeds of the power generator and the electric motor by use of the collinear diagram so as to increase the rotation speed of the engine when the engine is in the middle of fuel cut or in the middle of a stop and when an intake negative pressure amount of the engine is less than a reference intake negative pressure amount.
COPYRIGHT: (C)2010,JPO&INPIT
Inventors:
Ayako Nishimura
Junichi Morimura
Kazuya Maki
Application Number:
JP2008186437A
Publication Date:
May 15, 2013
Filing Date:
July 17, 2008
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
Advics Co., Ltd.
International Classes:
B60W10/06; B60K6/445; B60L50/16; B60T17/00; B60W10/08; B60W10/18; B60W20/00; F02D29/02; F02D45/00
Domestic Patent References:
| JP2007176418A | | | | |
| JP8308021A | | | | |
| JP2009166695A | | | | |
Attorney, Agent or Firm:
Hiroaki Sakai
