Patent ID: 6843751

Claim:
A speed-controlled dynamo-electric compound system, comprising: at least one primary dynamo-electric unit (E 101 ) arranged to rotate a shaft (S 104 and/or S 105 ); at least one centrifugal clutch (FC 101 ) having a driven side connected to the shaft (S 104 and/or S 105 ) and a driving side connected to an engine (ICE 101 ), wherein rotation of said dynamo-electric unit at a preset speed causes said driven side of the clutch to engage said driving side and thereby connect said engine (ICE 101 ) to said shaft (S 104 and/or S 105 ); a load connected to said shaft (S 104 and/or S 105 ) through an output device; a secondary dynamo-electric unit (E 102 ) coupled to said engine (ICE 101 ); an electrical energy storage device (ESD 101 ) connected between said secondary dynamo-electric unit (E 102 ) and said primary dynamo-electric unit (E 101 ); and a controller, wherein when said primary dynamo-electric unit (E 101 ) is supplied with electricity from said electrical energy storage device (ESD 101 ) and caused to rotate at below said preset speed, said dynamo-electric unit drives said shaft (S 104 and/or S 105 ) to selectively drive said output device, and when said primary dynamo-electric unit (E 101 ) is caused to rotate at above said preset speed, said driven side of said centrifugal clutch (FC 101 ) engages said driving side, thereby connecting said engine (ICE 101 ) to said primary dynamo-electric unit (E 101 ), wherein said controller includes a central control unit (CCU 101 ), a drive control device (CD 101 ) connected to said primary and secondary dynamo-electric units, and a manual control interface (M 101 ), said drive control device (CD 101 ) being arranged to control a speed of said primary dynamo-electric unit (E 101 ), and further to control whether said primary and secondary dynamo-electric units function as motors, generators, or one of each.