AUTOMATIC STOP/RESTART CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND VARIABLE VALVE ACTUATING APPARATUS
First Claim
1. An automatic stop/restart control system for an internal combustion engine, comprising:
- an engine stop device configured to stop fuel injection from a fuel injection valve in response to generation of an engine stop request during an operation of an internal combustion engine; and
a restart device configured to restart the fuel injection from the fuel injection valve and to open an exhaust valve in a vicinity of a bottom dead center on an expansion stroke end side, in response to generation of a restart request by a driver in a course of a decrease in number of revolutions of the internal combustion engine during stop of the fuel injection by the engine stop device.
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Accused Products
Abstract
An automatic stop/restart control system for an internal combustion engine comprising: an engine stop device configured to stop fuel injection from a fuel injection valve in response to generation of an engine stop request during an operation of an internal combustion engine; and a restart device configured to restart the fuel injection from the fuel injection valve and opening an exhaust valve in a vicinity of a bottom dead center on an expansion stroke end side in response to generation of a restart request by a driver in a course of a decrease in number of revolutions of the internal combustion engine during stop of the fuel injection by the engine stop device.
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Citations
12 Claims
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1. An automatic stop/restart control system for an internal combustion engine, comprising:
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an engine stop device configured to stop fuel injection from a fuel injection valve in response to generation of an engine stop request during an operation of an internal combustion engine; and a restart device configured to restart the fuel injection from the fuel injection valve and to open an exhaust valve in a vicinity of a bottom dead center on an expansion stroke end side, in response to generation of a restart request by a driver in a course of a decrease in number of revolutions of the internal combustion engine during stop of the fuel injection by the engine stop device. - View Dependent Claims (2, 3, 4)
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5. An automatic stop/restart control system for an internal combustion engine, comprising:
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an engine stop device configured to stop fuel injection from a fuel injection valve in response to generation of an engine stop request during an operation of an internal combustion engine; and a restart device configured to open an exhaust valve in a vicinity of a bottom dead center on an expansion stroke end side, when number of revolutions of the internal combustion engine decreases to be equal to or less than a predetermined exhaust valve control revolution number during stop of the fuel injection by the engine stop device, and to restart the fuel injection from the fuel injection valve at the valve timing in response to generation of a restart request by a driver. - View Dependent Claims (6, 7, 8)
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9. A variable valve actuating apparatus, comprising an exhaust-side variable valve actuating mechanism configured to control an open/close state of an exhaust valve of an internal combustion engine, the exhaust-side variable valve actuating mechanism configured to be driven and controlled by an exhaust valve control signal from a control apparatus which calculates the open/close state of the exhaust valve,
wherein when an engine stop request is generated during an operation of the internal combustion engine so as to stop fuel injection from a fuel injection valve, and when a restart request by a driver is generated in a course of a decrease in number of revolutions of the internal combustion engine, the exhaust-side variable valve actuating mechanism transitions to a mechanically stable position so as to open the exhaust valve in a vicinity of a bottom dead center on an expansion stroke end side.
Specification