Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
V型内燃機関の可変動弁装置
Document Type and Number:
Japanese Patent JP3996763
Kind Code:
B2
Abstract:

To avoid adverse effects on engine performance by correcting phase difference between both actuation angles in valve lift control by both first variable mechanisms of a right and a left banks of a V-type internal combustion engine.

In a step S1, current engine operation information signals are read from various sensors. In a step S2, an actual rotation position (valve lift quantity) of a control shaft detected is read. In a step S3, if the actual rotation position of the control shaft is a target control position or not is determined. When it is determined that it is not the target control position, a step S5 is started. In the step S5, deflection quantity between the actual rotation position detected and the target control position is determined by computation, and a step S4 is started. In the step S4, the control shaft is rotation-controlled to the target position by the first variable mechanism. In a step S6, a control range (advance quantity) for the control position of the second variable mechanism is computed in which no interference occurs between an intake valve and a piston, and the intake valve and an exhaust valve. In a step S7, continuous variable control is conducted to the second variable mechanism in the above control range.

COPYRIGHT: (C)2003,JPO


Inventors:
Suzuki Akinori
Application Number:
JP2001376666A
Publication Date:
October 24, 2007
Filing Date:
December 11, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
株式会社日立製作所
International Classes:
F01L1/02; F01L13/00; F01L1/12; F01L1/18; F01L1/34; F02D13/02
Domestic Patent References:
JP2001123810A
JP2001336446A
JP2001280167A
JP6229212A
JP10141097A
JP10169421A
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi