Patent ID: 8562469

Claim:
A hybrid power train having an epicyclic gear set that serves as a clutch device, said hybrid power train coupling an engine (ICE 100 ) and at least one electrical machine (EM 102 ), comprising: a rocker arm (A 101 ); a controllable brake device (BK 101 ) for locking and releasing said rocker arm (A 101 ); an epicyclic gear set (EG 101 ) including at least one epicyclic wheel (W 103 ) an input wheel (W 101 ), and an output wheel (W 102 ), wherein said at least one epicyclic wheel (W 103 ), input wheel (W 101 ), and output wheel (W 102 ) are bevel gears or bevel friction wheels, said at least one epicyclic wheel engaging both said input wheel (W 101 ) and output wheel (W 102 ); a first rotation shaft (S 101 ) connected to and rotatable with said input wheel (W 101 ); and a second rotation shaft (S 102 ) connected to and rotatable with said output wheel (W 102 ); an external input/output shaft (S 1026 ) rotatably coupled to an input/output side of at least one electrical machine (EM 102 ); and a cylindrical rotation shaft (AS 101 ) extending from said rocker arm (A 101 ) and coaxial with said first rotation shaft (S 101 ), said cylindrical shaft (AS 101 ) being engaged by said controllable brake device (BK 101 ) to prevent rotation of said rocker arm (A 101 ), wherein said epicyclic wheel (W 103 ) is rotatably mounted on said rocker arm (A 101 ) such that when said controllable brake device (BK 101 ) locks said rocker arm (A 101 ) to prevent rotation thereof, said epicyclic wheel (W 103 ) couples said input wheel (W 101 ) to said output wheel (W 102 ), and when said controllable brake device (BK 101 ) releases said rocker arm (A 101 ), rotation of said input wheel (W 101 ) or output wheel (W 102 ) causes said rocker arm (A 101 ) to rotate, at least partially decoupling said input wheel (W 101 ) from said output wheel (W 102 ), said epicyclic gear set (EG 101 ) thereby serving as a releasable clutch controlled by said controllable brake device (BK 101 ) to control transmission of power between said first rotation shaft (S 101 ) and said second rotation shaft (S 102 ), wherein said first rotation shaft (S 101 ) is rotatably coupled to an engine (ICE 100 ) and said second rotation shaft (S 102 ) is rotatably coupled to said at least one electrical machine (EM 102 ), and wherein said electrical machine (EM 102 ) serves primarily as a motor for converting input electrical power into rotary mechanical energy to drive said external input/output shaft ( 1026 ), whereby when said electrical machine (EM 102 ) is driven as a motor and said controllable brake device (BK 101 ) engages said cylindrical shaft (AS 101 ) to prevent rotation of said rocker arm (A 101 ), said engine (ICE 100 ) and said at least one electrical machine (EM 102 ) are coupled through said epicyclic gear set to jointly drive said input/output shaft ( 1026 ), and whereby when said controllable brake device (BK 101 ) releases said cylindrical shaft (AS 101 ), said engine (ICE 100 ) is decoupled from said at least one electrical machine (EM 102 ).