Honda Motor Co., Ltd.

Yuichi Onoe

Minoru Maedako

Tetsuya Matsuhisa

Wataru Matsuyama

Kenji Shibata

A starter starts an engine. A power supply supplies power to the starter. A generator is driven by the engine. An inverter including a first conversion circuit for converting an AC generated by the generator into a DC, and a second conversion circuit for converting the DC into an AC. An outlet outputs the AC from the inverter to a load. A detection circuit detects the load connected to the outlet. A control circuit stops or starts the engine in accordance with the load. The control circuit causes the second conversion circuit to generate an AC by applying a DC voltage from the power supply to the second conversion circuit during an engine-stop-period, and decides, based on whether the detection circuit detects the load, whether to continuously stop the engine or to start the engine.

Engine generator

In an inverter generator having a generator unit including three phase windings driven by an engine, a converter having multiple switching elements and configured to convert alternating current outputted from the generator unit to direct current, an inverter configured to convert direct current outputted from the converter to alternating current and output the alternating current to a load, and a converter control unit configured to determine PWM control ON-time period and drive the multiple switching elements so that inter-terminal voltage of direct current outputted from the converter stays constant with respect to increase/decrease of the load, the converter control unit is configured to detect, with respect to voltage waveforms occurring in the three-phase windings in cycle (t&#x2212;n), crossing angle between voltage waveform of one phase and voltage waveform of a phase adjacent thereto and to drive the multiple switching elements of either the one phase and the adjacent phase in cycle (t) such that the detected crossing angle is included in the PWM control signal ON-time period.

Inverter generator

An engine-generator starting apparatus a three-phase winding equipped with a generating unit that rotates relative to rotation of a crankshaft of an engine, and an electronic control unit that controls supply of electric current the three-phase winding to rotate the crankshaft and start the engine. In the apparatus, the electronic control unit controls to supply first current to the three-phase winding to make the engine crankshaft of rotate reverse, the first current is of a level for stopping the piston connected to the crankshaft at a position in a compression stroke. Then it controls to supply second current (that is greater than the first current) to the three-phase winding to make the crankshaft of the engine rotate forward when a predetermined time period has elapsed, and control to ignite fuel supplied to the engine after the second current is supplied to the three-phase winding.

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Wako, Japan

Yuichi Onoe