Title:
Vehicle control device
Document Type and Number:
Japanese Patent JP6354477
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress vehicle vibration (muffle sound) when bringing a lockup mechanism of a torque converter into a lockup-on state.SOLUTION: When switching a compression ratio to a low-pressure compression ratio from a high-pressure compression ratio, and switching a lockup mechanism of a torque converter to a lockup-on state from a lockup-off state, a variable valve timing mechanism is controlled so that intake valve-opening timing is apart from a lower dead point, and the ignition timing of an internal combustion engine is retarded. By this constitution, since a torque variation within one cycle of the internal combustion engine is lowered, vehicle vibration (muffle sound) resulting from a response delay of the compression ratio can be quickly reduced.SELECTED DRAWING: Figure 4
Inventors:
Eiji Takahashi
Application Number:
JP2014184718A
Publication Date:
July 11, 2018
Filing Date:
September 11, 2014
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02D15/02; B60W10/04; B60W10/10; F02D13/02; F02P5/15; F16H61/14
Domestic Patent References:
| JP5146598B2 | ||||
| JP2005127212A | ||||
| JP2003200760A | ||||
| JP2010132085A | ||||
| JP2011207289A | ||||
| JP2011208529A |
Foreign References:
| WO2016038715A1 |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi
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