Title:
ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/073894
Kind Code:
A1
Abstract:
This engine control device controls an engine installed in a hybrid vehicle that is driven by cooperation between output of the engine and output of an electric motor. The engine control device comprises a control unit that, if a fuel injection pulse stoppage has been sensed as a state change of the engine, changes an intake valve through an intake valve variable-phase mechanism from an intake reference phase before the state change of the engine to an intake target phase and also changes an exhaust valve through an exhaust valve variable-phase mechanism from an exhaust reference phase before the state change of the engine to an exhaust target phase, on the basis of the engine rotational speed when the fuel injection pulses stopped and a preset relationship among the engine rotational speed at fuel injection pulse stoppage, the intake target phase of the intake valve, and the exhaust target phase of the exhaust valve.
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Inventors:
KOIKE YUTA (JP)
SARUWATARI MASAYUKI (JP)
KIHARA YUUSUKE (JP)
SARUWATARI MASAYUKI (JP)
KIHARA YUUSUKE (JP)
Application Number:
PCT/JP2021/039920
Publication Date:
May 04, 2023
Filing Date:
October 28, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02D13/02
Foreign References:
| JP2006250023A | 2006-09-21 | |||
| JP2017166346A | 2017-09-21 | |||
| JPH10231742A | 1998-09-02 | |||
| JP2005117779A | 2005-04-28 | |||
| JP2004003434A | 2004-01-08 | |||
| JP2009228538A | 2009-10-08 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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