Title:
METHOD AND APPARATUS FOR DRIVING INTERNAL COMBUSTION ENGINE INCLUDING VCR ACTUATOR AND INSPECTING WHETHER OR NOT VCR ACTUATOR FUNCTIONS
Document Type and Number:
Japanese Patent JP2017194059
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To increase a control accuracy for a compression ratio in a cylinder of an internal combustion engine.SOLUTION: This invention relates to a method for driving an internal combustion engine including VCR actuator 6 for use in setting a compression ratio in a cylinder 3 of an internal combustion engine 2 on the basis of a display of an actual compression ratio and includes the following steps, i.e. a step for determining a modeling actual engine torque, a modeling compression efficiency and an actual engine torque, a step for determining an actual compression efficiency on the basis of torque balance and a step for setting an actual compression ratio according to the actual compression efficiency.SELECTED DRAWING: Figure 1
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Inventors:
JOCHEN HOFSTAETTER
ALEXANDRA FUCHSBAUER
GUIDO PORTEN
MATTHIAS WALZ
PASCAL GLADEL
STEFAN GOTTLIEB
ALEXANDRA FUCHSBAUER
GUIDO PORTEN
MATTHIAS WALZ
PASCAL GLADEL
STEFAN GOTTLIEB
Application Number:
JP2017081265A
Publication Date:
October 26, 2017
Filing Date:
April 17, 2017
Export Citation:
Assignee:
BOSCH GMBH ROBERT
International Classes:
F02D15/02; F02B75/04; F02D15/04
Domestic Patent References:
| JP2006097660A | 2006-04-13 | |||
| JP2010031787A | 2010-02-12 | |||
| JP2011144753A | 2011-07-28 |
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto