Drive train

A drive train, including:

• a first electric motor;
• a second electric motor;
• and a transmission system including a first input shaft driveably connected to the first electric motor, a second input shaft driveably connected to the second electric motor, a first gear train including a first gear element rotatably mounted on the first input shaft and a second gear element rotatably mounted on the second input shaft, a second gear train including a third gear element rotatably mounted on the first input shaft and a fourth gear element rotatably mounted on the second input shaft, a gear selector assembly arranged to selectively lock the first and third gear elements for rotation with the first input shaft, and a further gear selector assembly arranged to selectively lock the second and fourth gear elements for rotation with the second input shaft, wherein at least one of the gear selector assemblies is arranged to selectively lock each of its respective gear elements for rotation with its respective input shaft from operational modes that include the following modes:
• lock the gear element for rotation with the input shaft in forward and reverse torque directions, lock the gear element for rotation with the input shaft in the forward torque direction and not lock in the reverse torque direction;
• and lock the gear element with rotation with the input shaft in the reverse torque direction and not lock in the forward torque direction.

A drive train, including:

• a first electric motor;
• a second electric motor;
• and a transmission system including a first input shaft driveably connected to the first electric motor, a second input shaft driveably connected to the second electric motor, an output member, a first gear train including a first gear element rotatably mounted on the first input shaft, a second gear element fixed for rotation with the second input shaft and a gear element rotatably mounted on the output member, a second gear train including a third gear element rotatably mounted on the first input shaft, a fourth gear element fixed for rotation with the second input shaft and a further gear element rotatably mounted on the output member, a gear selector assembly arranged to selectively lock the first and third gear elements for rotation with the first input shaft, and a further gear selector assembly arranged to selectively lock the gear element and further gear element for rotation with the output member, wherein at least one of the gear selector assemblies is arranged to selectively lock each of its respective gear elements for rotation with its respective shaft from operational modes that include the following modes:
• lock the gear element for rotation with the shaft in forward and reverse torque directions, lock the gear element for rotation with the shaft in the forward torque direction and not lock in the reverse torque direction;
• and lock the gear element with rotation with the shaft in the reverse torque direction and not lock in the forward torque direction.

A drive train, including:

• a first electric motor;
• a second electric motor;
• and a transmission system including a first input shaft driveably connected to the first electric motor, a second input shaft driveably connected to the second electric motor, an output member, a first gear train including a first gear element fixed for rotation with the first input shaft, a second gear element rotatably mounted on the second input shaft, and a gear element rotatably mounted on the output member, a second gear train including a third gear element fixed for rotation with the first input shaft, a fourth gear element rotatably mounted on the second input shaft and a further gear element rotatably mounted on the output member, a gear selector assembly arranged to selectively lock the second and fourth gear elements for rotation with the second input shaft, and a further gear selector assembly arranged to selectively lock the gear element and further gear element for rotation with the output member, wherein at least one of the gear selector assemblies is arranged to selectively lock each of its respective gear elements for rotation with its respective input shaft from operational modes that include the following modes:
• lock the gear element for rotation with the shaft in forward and reverse torque directions, lock the gear element for rotation with the shaft in the forward torque direction and not lock in the reverse torque direction;
• and lock the gear element with rotation with the shaft in the reverse torque direction and not lock in the forward torque direction.