Title:
INTERNAL COMBUSTION ENGINE, AND METHOD OF CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2012/176736
Kind Code:
A1
Abstract:
An internal combustion engine (10) is provided with a control apparatus (40) for controlling a variable oil pump (20) and an auxiliary brake system (30). The amount of engine oil supplied by the variable oil pump (20) is increased when the internal combustion engine (10) is operating in: a high load state; a state in which the actual fuel injection amount (Qm)(or the instructed fuel injection amount (Qt)) is zero during deceleration; and a state in which the actual fuel injection amount (Qm)(or the instructed fuel injection amount (Qt)) is zero when an auxiliary brake is activated. Thus, in the high load state, which requires a large supply amount of engine oil, lubrication and cooling can be performed with a sufficient amount of engine oil, and in the state in which the auxiliary brake is activated, the energy of an engine drive shaft (12) can be recovered for driving the variable oil pump (20) when fuel is definitely not being injected, so that the supply amount of engine oil can be increased without worsening of fuel efficiency, and the required braking force can be efficiently obtained.
Inventors:
KOMATSU AKIRA (JP)
Application Number:
PCT/JP2012/065513
Publication Date:
December 27, 2012
Filing Date:
June 18, 2012
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
KOMATSU AKIRA (JP)
KOMATSU AKIRA (JP)
International Classes:
F02D13/04; F01L13/06; F01M1/16; F02D41/12; F02D45/00
Foreign References:
| JPS57210113A | 1982-12-23 | |||
| JP2002201922A | 2002-07-19 | |||
| JP2000274264A | 2000-10-03 |
Attorney, Agent or Firm:
OGAWA, Shin-ichi et al. (JP)
Shin-ichi Ogawa (JP)
Shin-ichi Ogawa (JP)
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Claims: