Title:
ENGINE SYSTEM AND SADDLE-STRADDLING TYPE MOTOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2015/001712
Kind Code:
A1
Abstract:
An engine is controlled in a normal mode or an idle stop mode. The ignition of a fuel-air mixture is performed in the normal mode, and the ignition of the fuel-air mixture is not performed in the idle stop mode. A detection subject that is rotated together with a crank shaft is provided at the crank shaft. At the time of the re-start of an engine, the ignition of the fuel-air mixture compressed in the first compression stroke is performed based on the detection of the detection subject by a reference angle sensor. When an operation abnormality of the reference angle sensor is not detected, the injection of the fuel is performed in a plurality of cycles right before the rotation of the crank shaft is stopped in the idle stop mode. When the operation abnormality of the reference angle sensor is detected, the injection of the fuel is not performed in the idle stop mode.
Inventors:
MAEBASHI KOSEI (JP)
NISHIMURA TETSUHIKO (JP)
NISHIMURA TETSUHIKO (JP)
Application Number:
PCT/JP2014/003036
Publication Date:
January 08, 2015
Filing Date:
June 06, 2014
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
International Classes:
F02D41/00; F02D41/04; F02D41/22; F02D41/34; F02N11/08; F02N99/00
Domestic Patent References:
| WO2009007820A2 | 2009-01-15 | |||
| WO2006054734A1 | 2006-05-26 |
Foreign References:
| US20050228575A1 | 2005-10-13 | |||
| EP1731738A1 | 2006-12-13 | |||
| JP2005291143A | 2005-10-20 | |||
| JP4419655B2 | 2010-02-24 |
Attorney, Agent or Firm:
FUKUSHIMA, Yoshito (4-1 Hiroshiba-cho, Suita-sh, Osaka 52, JP)
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