Kazuhiro Ichimoto
Kazuhiro Ichimoto, Nishikamo-Gun JP
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20100224153 | VARIABLE VALVE TIMING SYSTEM AND METHOD FOR CONTROLLING THE SAME - A variable valve timing system changes a valve phase by reducing an operation amount of an actuator at a speed reduction ratio that varies depending on a phase region. When the valve phase is outside a region in which the ratio of the amount of change in the phase with respect to the operation amount of the actuator is low, namely a high speed reduction ratio, the actuator may be operated due to, for example, a reaction force applied to a camshaft, and an undesirable valve phase change may result. Accordingly, when an engine stop command is possibly issued, the target phase value is restricted to a region more delayed than a phase restriction value set in consideration of the amount by which the valve timing can be changed from when an engine stop command is issued until when the engine is stopped. | 09-09-2010 |
Kazuhiro Ichimoto, Nisshin-Shi JP
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20080236913 | Power output apparatus and vehicle equipped with the same, and method for controlling power output apparatus - When an exhaust gas switching valve is in a closed state, a target rotation speed Ne* and a target torque Te* are set in the same way as when the exhaust gas switching valve is in an open state to control an engine (S | 10-02-2008 |
20090093940 | Vehicle and Vehicle Control Method - When a power demand Pe* is not less than a preset reference value Pref | 04-09-2009 |
20100094526 | INTERNAL COMBUSTION ENGINE SYSTEM, CONTROL METHOD OF INTERNAL COMBUSTION ENGINE SYSTEM, AND VEHICLE - On incompletion of port learning, an auto stop-permitting water temperature is set to a temperature which is higher than a temperature set on completion of the port learning and is higher than a port injection temperature as an upper limit temperature that enables an engine to be driven in a port injection drive mode. This arrangement increases the opportunity of continuing the operation of the engine with fuel injection from a port fuel injection valve without an auto stop, thus increasing the opportunity of the port learning. | 04-15-2010 |
Kazuhiro Ichimoto, Aichi-Ken JP
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20080236148 | Internal combustion engine apparatus, control method thereof, and vehicle - When a misfire occurs in any cylinder of an engine, an exhaust switching valve is closed to pass exhaust gas through an HC adsorbing section to a catalytic purifying section having a three-way catalyst (step S | 10-02-2008 |
20080275626 | Vehicle and Control Method of Vehicle - In a vehicle equipped with both an engine and a motor as the driving power source, in the event of incompletion of learning a control demand for regulation of an idling rotation speed of the engine, intermittent operation prohibition control of the invention permits intermittent operation of the engine under the setting of a gearshift lever to a parking position. The intermittent operation prohibition control of the invention prohibits the intermittent operation of the engine, on the other hand, under the setting of the gearshift lever to a drive position. This arrangement avoids the continuous operation of the engine against the driver's expectation, while prohibiting the intermittent operation of the engine to ensure the opportunity of learning the control demand for regulation of the idling rotation speed of the engine. | 11-06-2008 |
20080302330 | Engine System and Method for Controlling the Same - When a command to stop an engine is issued, it is determined whether a current state is a speed reduction enabled state where an intake valve phase is brought into a phase region, in which speed reduction ratio is high, by the time the engine is stopped if an engine speed reduction control according to a predetermined speed reduction pattern is started at the present moment. If it is determined the current state is not the speed reduction enabled state, starting of the engine speed reduction control is not permitted, or the engine speed reduction control is restricted by reducing the deceleration, and then an intake valve phase control is executed. Thus, a required length of time before the engine is stopped is ensured, namely, a required length of period in which the intake valve phase is changed is ensured. | 12-11-2008 |
20090099757 | INTERNAL COMBUSTION ENGINE SYSTEM, VEHICLE EQUIPPED WITH INTERNAL COMBUSTION ENGINE SYSTEM, AND CONTROL METHOD OF INTERNAL COMBUSTION ENGINE SYSTEM - Upon satisfaction of an idle learning condition, the internal combustion engine system of the invention successively performs learning of an idle control amount and learning of a most delayed angle control amount in this sequence. Upon satisfaction of a most delayed angle learning condition, on the other hand, the internal combustion engine system successively performs learning of the most delayed angle control amount and learning of the idle control amount in this sequence. This arrangement effectively reduces the total time required for completion of learning both the idle control amount and the most delayed angle control amount, compared with the conventional procedure of individually learning only one control amount corresponding to the satisfied learning condition. | 04-16-2009 |
20090255493 | Variable Valve Operating Device, Control Method of Variable Valve Operating Device, and Vehicle Equipped with Variable Valve Operating Device - In a hybrid vehicle, on a start of an engine, when an engine water temperature is low and there is a need of advancing open and close timings of an intake valve from their most delayed positions, electric power is supplied to a VVT motor either via a first route or via a second route. Even when the state of charge of a low voltage battery is very low and insufficient, the required electric power is supplied from a DC-DC converter to the VVT motor without passing through the low voltage battery. On the start of the engine, such start control ensures an adequate change of the open and close timings of the intake valve set in the stop state of the engine. | 10-15-2009 |
Kazuhiro Ichimoto, Nissin-Shi JP
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20080196393 | Device for restraining the deterioration of a catalytic apparatus of an internal combustion engine - In a device for restraining the deterioration of a catalytic apparatus of an internal combustion engine of the present invention, when the temperature of the catalytic apparatus arranged in the engine exhaust system is higher than a predetermined temperature in a vehicle deceleration, a fuel-cut of the engine is prohibited and a first motor-generator MG | 08-21-2008 |
Kazuhiro Ichimoto, Miyoshi-Shi JP
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20120130577 | VEHICULAR CONTROL APPARATUS AND VEHICULAR CONTROL METHOD - In a vehicular control apparatus mounted on a vehicle including an internal combustion engine, a rotating electrical machine, and a storage device that is supplied with a power from the rotating electrical machine, the vehicle can be decelerated through stoppage of injection of fuel into the internal combustion engine and regenerative braking by the rotating electrical machine. The vehicular control apparatus controls the vehicle such that a remaining capacity in the storage device becomes lower when a catalyst temperature of the internal combustion engine is high than when the catalyst temperature of the internal combustion engine is low. | 05-24-2012 |
20140156132 | CONTROL DEVICE AND CONTROL METHOD FOR HYBRID VEHICLE - A hybrid vehicle has a first running mode with an engine stopped and a second running mode with the engine operating. An ECU monitors information related to the frequency of intermittent startup of the engine in response to the startup and stoppage of the engine during vehicle running. The ECU executes running control such that startup of the engine is suppressed during the first running mode when in an operation pattern in which the frequency of intermittent startup is high. Accordingly, discomfort to the driver and degradation in fuel efficiency caused by repeating stoppage and startup of the engine frequently in a short period of time can be prevented. | 06-05-2014 |