TRANSMISSION FOR A VEHICLE, WITH ELECTRIC GENERATOR AND/OR MOTOR
1 Assignment
0 Petitions
Accused Products
Abstract
A dual clutch transmission has an electrical machine (25) coupled to the input shafts (15, 16) thereof via one-way clutches (31, 32). The electrical machine acts as a generator, and can be driven at high speed by the input shaft which is not transmitting engine torque. The electrical machine may also act as a motor to start an internal combustion engine via an automatic one-way clutch and reverse speed ratio.
-
Citations
57 Claims
-
1-37. -37. (canceled)
-
38. A dual clutch transmission having drive clutches for driving coaxial input shafts from a motor, and a rotary electrical machine for harvesting and/or transmitting energy from/to said transmission;
- wherein said electrical machine includes an armature coupled to both said input shafts via respective armature clutches, and wherein at least one of said armature clutches comprises a one-way clutch.
- View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
-
54. A method of providing a substantially continual drive connection between a rotary electrical machine and a dual clutch transmission of a motor vehicle, said rotary electrical machine being for harvesting and/or transmitting energy from/to said transmission, and said transmission having co-axial input shafts and drive clutches therefor, the method comprising:
-
connecting an armature of said machine to both said input shafts via respective armature clutches; and driving from said input shafts to said armature through respective one-way clutches.
-
-
55. A method of operating a transmission having drive clutches for driving coaxial input shafts from a motor, and a rotary electrical machine for harvesting and/or transmitting energy from/to said transmission;
- wherein said electrical machine includes an armature coupled to both said input shafts via respective armature clutches, and wherein at least one of said armature clutches comprises a one-way clutch, the method comprising;
determining that said electrical machine should harvest energy from said transmission; disconnecting a currently engaged drive clutch; and driving said electrical machine via a selected speed ratio of the transmission. - View Dependent Claims (56)
- wherein said electrical machine includes an armature coupled to both said input shafts via respective armature clutches, and wherein at least one of said armature clutches comprises a one-way clutch, the method comprising;
-
57. A method of starting an internal combustion engine when coupled to a transmission having drive clutches for driving coaxial input shafts from a motor, and a rotary electrical machine for harvesting and/or transmitting energy from/to said transmission;
- wherein said electrical machine includes an armature coupled to both said input shafts via respective armature clutches, and wherein at least one of said armature clutches comprises a one-way clutch, the method comprising;
causing both drive clutches to be disengaged, engaging an armature clutch to permit driving of an input shaft of said transmission by said electrical machine; providing that said input shaft is not connected for drive to an output shaft of said transmission, causing rotation of said input shaft by said electrical machine, engaging a drive clutch associated with said input shaft to start said engine, and disconnecting said drive clutch after starting said engine.
- wherein said electrical machine includes an armature coupled to both said input shafts via respective armature clutches, and wherein at least one of said armature clutches comprises a one-way clutch, the method comprising;
Specification