초록 ▼

A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate

A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

대표청구항 ▼

[ What is claimed is:] [1.] A hybrid transmission system for a vehicle having an engine operating at a speed defined in revolutions per minute (RPM), a drive wheel, a drive shaft connected to the drive wheel for rotating the drive wheel, comprising:a transmission gear set, having an input shaft havi

[ What is claimed is:] [1.] A hybrid transmission system for a vehicle having an engine operating at a speed defined in revolutions per minute (RPM), a drive wheel, a drive shaft connected to the drive wheel for rotating the drive wheel, comprising:a transmission gear set, having an input shaft having an input shaft speed defined in revolutions per minute (RPM) and an output shaft, the input shaft being driven and driving the output shaft, the output shaft being adapted to cause motion of the drive wheel through the drive shaft, the input and output shafts having a plurality of gears which selectively mesh for engagement to vary a relative speed of rotation between the input shaft and the output shaft;a plurality of shift motors to effect engagement and disengagement of the gears;a clutch for selectively coupling the engine to the transmission;a clutch motor for engaging and disengaging the clutch;an electric machine connected to the input shaft for selectively increasing and decreasing the speed of the input shaft;a transmission controller which receives a plurality of input signals and generates a plurality of output signals, the output signals controlling the motors and the electric machine in order to engage a new gear ratio between the input and output shafts and to synchronize the input and the output shafts just prior to engaging the new gear ratio; anda clutch controller which generates a clutch command to control engagement and disengagement of the clutch in accordance with at least one of the plurality of input signals, the clutch controller determining whether the vehicle is in one of a launch and a shift condition, the clutch controller generating commands to substantially regulate the engine RPM during a launch condition and generating commands to substantially regulate slip during a shift condition.