Start control device of internal combustion engine
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsSatoshi Yoshikawa, Shinichi Murata
Life of this patent
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Abstract
A start control device of an internal combustion engine, the start control device includes: a starting unit, which cranks the internal combustion engine to start the internal combustion engine while opening and closing an intake valve; a variable valve mechanism, which can change a closing timing of the intake valve; and a control unit, which controls the variable valve mechanism so as to advance the closing timing of the intake valve while the starting unit cranks.
Claims8
A start control device of an internal combustion engine, the start control device comprising:
- a starting unit, which cranks the internal combustion engine to start the internal combustion engine while opening and closing an intake valve;
- a variable valve mechanism, which can change a closing timing of the intake valve;
- and
- a control unit, which controls the variable valve mechanism so as to advance the closing timing of the intake valve while the starting unit cranks, wherein
- the closing timing of the intake valve is advanced in a phased manner in increments of an amount.
A start control device of an internal combustion engine, the start control device, comprising:
- a starting unit, which cranks the internal combustion engine to start the internal combustion engine while opening and closing an intake valve;
- a variable valve mechanism, which can change a closing timing of the intake valve;
- and
- a control unit, which controls the variable valve mechanism so as to advance the closing timing of the intake valve while the starting unit cranks, wherein
- the control unit sets a threshold value for determining whether the control unit controls the variable valve mechanism so as to advance the closing timing of the intake valve while the starting unit cranks, and
- when a length of a time period in which the starting unit cranks exceeds the threshold value, the control unit controls the variable valve mechanism so as to advance the closing timing of the intake valve.
A start control device of an internal combustion engine, the start control device, comprising:
- a starting unit, which cranks the internal combustion engine to start the internal combustion engine while opening and closing an intake valve;
- a variable valve mechanism, which can change a closing timing of the intake valve;
- a control unit, which controls the variable valve mechanism so as to advance the closing timing of the intake valve while the starting unit cranks;
- a detecting unit, which detects properties of a fuel to be used for the internal combustion engine;
- and
- a setting unit, which sets a temporary closing timing for starting, based on the properties of the fuel detected by the detecting unit, wherein
- the control unit controls the variable valve mechanism so as to advance the closing timing of the intake valve based on the temporary closing timing for starting while the starting unit cranks.
Dependencies are inferred from the claim text.