Inventors:
- Cambridge MA, US
Jacob M. Jurewicz - Chicago IL, US
Joshua E. Siegel - Bloomfield Hills MI, US
Amos G. Winter - Somerville MA, US
Young Suk Jo - Cambridge MA, US
Patricia Yen - Milpitas CA, US
Guillermo Pamanes Castillo - Cambridge MA, US
Daniel Scott Dorsch - Cambridge MA, US
International Classification:
B60W 30/19
B60K 6/48
B60K 6/44
B60K 6/36
B60K 6/547
B60W 10/06
B60W 10/08
B60W 10/02
B60W 10/11
B60W 20/15
Abstract:
An apparatus including a drive shaft, a transmission, and a motor shaft. The drive shaft includes a drive gear and is configured to transmit power to a wheel of a vehicle. The transmission includes an input shaft, an output shaft, and an intermediate gear. The input shaft includes a transmission input gear and a plurality of input shaft gears. The output shaft includes a transmission output gear and a plurality of output shaft gears. The input shaft and the output shaft are aligned such that the input shaft gears mesh with the output shaft gears. The output shaft includes a first synchronizer configured to selectively engage an output shaft gear from the plurality of output shaft gears to adjust a ratio between an input shaft speed and an output shaft speed. The transmission output gear is operably coupled to the drive gear such that power is transmitted between the transmission output gear and the drive gear when the output shaft gear is engaged. The transmission input gear is operably coupled to an engine shaft such that a rotation speed of the input shaft is dependent on a rotation speed of the engine shaft when the first synchronizer is being shifted. The motor shaft is configured to be coupled to a motor. The motor shaft has a first motor gear and a second motor gear. The first motor gear is operably coupled to the drive gear and the second motor gear is operably coupled to the intermediate gear. The motor shaft includes a second synchronizer configured to selectively engage the first motor gear and the second motor gear. The first motor gear is configured to transmit power between the motor shaft and the drive shaft when the second synchronizer engages the first motor gear. The intermediate gear is configured to transmit power between the motor shaft and the engine shaft when the second synchronizer engages the second motor gear.
