US 12,237,801 B2
Engine generator
Yuichi Onoe, Wako (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Jul. 24, 2023, as Appl. No. 18/225,193.
Application 18/225,193 is a continuation of application No. PCT/JP2021/002875, filed on Jan. 27, 2021.
Prior Publication US 2023/0370001 A1, Nov. 16, 2023
Int. Cl. H02P 9/08 (2006.01)
CPC H02P 9/08 (2013.01) 9 Claims
OG exemplary drawing
 
1. An engine generator comprising:
an engine;
a starter configured to start the engine;
a power supply configured to supply power to the starter;
a generator configured to be driven by the engine to generate power;
an inverter including a first conversion circuit configured to convert an alternative current (AC) generated by the generator into a direct current (DC), and a second conversion circuit configured to convert the DC into an AC and supply the AC to a load;
an outlet configured to output the AC from the inverter to the load;
a control circuit configured to:
obtain a load parameter which changes in response to connection state of the load to the outlet;
stop the engine in accordance with the load parameter;
cause the second conversion circuit to generate an AC by applying a DC voltage derived from the power supply to the second conversion circuit during a stop mode in which the engine does not rotate and the generator does not generate power;
maintain the engine in the stop mode based on the load parameter; and
restart the engine based on the load parameter to transit from the stop mode to an operating mode in which the engine rotates and the generator generates power.