Title:
内燃機関の弁駆動システム及び方法、並びに動力出力装置
Document Type and Number:
Japanese Patent JP4265336
Kind Code:
B2
Abstract:
A valve-driving system for an internal combustion engine is provided with: an electric motor for generating a rotational driving force to drive a valve for intake or exhaust mounted on a cylinder in the internal combustion engine so as to open and close the valve in synchronization with a piston motion in the internal combustion engine; a transmitting device capable of changing between (i) a first condition to transmit therethrough the rotational driving force to the valve from said electric motor and (ii) a second condition to stop an opening or closing operation of the valve or to make the valve driven by a low lift amount; a judging device for judging whether or not synchronization between the opening or closing operation of the valve and the piston motion is abnormal; and a fail-safe device for changing said transmitting device to the second condition if it is judged by the judging device that the synchronization is abnormal.
Inventors:
Shuichi Ezaki
Toshiaki Asada
Prince Tsuji
Yasushi Kusaka
Toshiaki Asada
Prince Tsuji
Yasushi Kusaka
Application Number:
JP2003288275A
Publication Date:
May 20, 2009
Filing Date:
August 06, 2003
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D13/02; F01L1/02; F01L1/04; F01L1/24; F01L1/26; F01L1/30; F01L13/00; F01L31/22; F01L9/22
Domestic Patent References:
| JP8177536A | ||||
| JP2001254637A | ||||
| JP9072206A | ||||
| JP9032569A | ||||
| JP2002303195A | ||||
| JP10196418A |
Attorney, Agent or Firm:
Tatsuo Egami