Vehicle transmission system and vehicle drive system comprising the same

摘要

A transmission system for a hybrid vehicle includes a primary input shaft for receiving drive from a primary vehicle drive motor, such as an internal combustion engine. A secondary input shaft receives drive from a secondary vehicle drive motor, such as an electric motor. An output shaft of the system is connected to drive a final drive unit. A multi-speed gearbox is provided to connect the primary input shaft to the output shaft at one of a plurality of gear ratios. An input selection mechanism, in a first mode, connects the secondary input shaft to drive the output shaft and, in a second mode, connects the secondary input shaft to drive the primary input shaft. A clutch may be provided that can selectively connect or disconnect drive between the primary drive motor and the gearbox.

主权项

1. A transmission system for a vehicle, the system comprising:
a. a primary input shaft for receiving drive from a primary vehicle drive motor, b. a secondary input shaft for receiving drive from a secondary vehicle drive motor; c. an output shaft for connection to drive a final drive unit; d. a multi-speed gearbox that can connect the primary input shaft to the output shaft at one of a plurality of gear ratios; and e. input selection means including a drive train comprising an input shaft gear mounted on the primary input shaft, an output shaft gear mounted on the output shaft, a first selector hub for selectively connecting or disconnecting the input shaft gear and the primary input shaft, and a second selector hub for selectively connecting or disconnecting the output shaft gear and the output shaft; in which the input selection means, in a first mode, connects the secondary input shaft to the output shaft to transmit drive from the secondary vehicle drive motor to the final drive unit via the output shaft and, in a second mode, connects the secondary input shaft to the primary input shaft to transmit drive from the secondary vehicle drive motor to the final drive unit via the primary input shaft, the gearbox and the output shaft; further comprising a drive gear mounted on the primary input shaft for transmitting drive from the primary vehicle drive motor to the primary input shaft, and a selector clutch for selectively connecting or disconnecting the drive gear and the primary input shaft.