Title:
VARIABLE VALVE CONTROL DEVICE, VARIABLE VALVE CONTROL SYSTEM, AND METHOD FOR CONTROLLING VARIABLE VALVE MECHANISM
Document Type and Number:
WIPO Patent Application WO/2019/106913
Kind Code:
A1
Abstract:
Provided are a variable valve control device, a variable valve control system, and a method for controlling a variable valve mechanism, wherein: an ECM (201) transmits, to a VTC control unit (202), a phase detection value (RA1) calculated on the basis of a crank angle signal (CRANK) and a cam angle signal (CAM),via a communication network (211); and the VTC control unit (202) calculates a phase detection value (RA2) on the basis of a motor angle signal (MAS), controls a variable valve timing mechanism (114) on the basis of the phase detection value (RA2) in a transient state of an internal combustion engine, and controls the variable valve timing mechanism (114) on the basis of the phase detection value (RA1) in a normal state of the internal combustion engine.
Inventors:
MATSUO NOBUHIKO (JP)
SHIMIZU HIROKAZU (JP)
SHIMIZU HIROKAZU (JP)
Application Number:
PCT/JP2018/034371
Publication Date:
June 06, 2019
Filing Date:
September 18, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02D13/02; F02D45/00
Foreign References:
| JP2004190662A | 2004-07-08 | |||
| JP2015166587A | 2015-09-24 | |||
| JP2015081562A | 2015-04-27 | |||
| JP2006070754A | 2006-03-16 | |||
| JP2004190662A | 2004-07-08 | |||
| JP2016160840A | 2016-09-05 | |||
| JP2017075539A | 2017-04-20 |
Other References:
See also references of EP 3719285A4
Attorney, Agent or Firm:
OGAWA, Moriaki et al. (JP)
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