A hybrid transmission system with a multi-speed gearbox. The multi-speed gearbox, in one example, includes a first primary shaft with a first set of gears positioned thereon and selectively coupled to an internal combustion engine (ICE) at a first end and a second primary shaft with a second set of gears positioned thereon. The gearbox further includes a secondary shaft with a third set of gears that mesh with the first set of gear and the second set of gears and an electric drive interface gear that is idly mounted, free to spin, on the second primary shaft, positioned between two gears in the second set of gears, and configured to receive mechanical power from an electric machine and an output shaft that is configured to mechanically attached to a differential.

A hybrid transmission system with a multi-speed gearbox. The multi-speed gearbox is configured to rotationally couple a prime mover and an electric machine to different gear ratios during a hybrid drive mode. The multi-speed gearbox includes an electric drive interface gear positioned coaxial to a first primary shaft and a second primary shaft and idly mounted, free to spin, to the second primary shaft and an output shaft that includes an output shaft gear which is fixedly coupled thereto meshes with a gear on a secondary shaft.

A transmission system that includes a multi-speed gearbox. The multi-speed gearbox, in one example, includes a primary shaft with a first set of gears positioned thereon, a secondary shaft with a second set of gears positioned thereon, an internal combustion engine (ICE) clutch configured to selectively couple an ICE to the primary shaft, and an electric drive interface gear that is positioned axially between two gears in the first set of gears, configured to couple to an electric machine, and coupled to a gear in the second set of gears.

A hybrid vehicle may be a series hybrid or a parallel hybrid vehicle. One embodiment of a parallel hybrid vehicle includes an engine, a transmission coupled to the engine, a front drive coupled to the transmission through a prop shaft, a rear drive coupled to the transmission, a traction motor drivingly coupled to the prop shaft, and a battery to operate the traction motor.

A hybrid vehicle drive device includes a transmission coupled to the engine output shaft of an engine, a final reduction gear coupled to the transmission output shaft of the transmission, a drive shaft coupled to the final reduction gear, and a power transmission mechanism that transmits the rotation of an electric motor to the final reduction gear. The hybrid vehicle drive device includes a transaxle case accommodating the transmission, the final reduction gear and the power transmission mechanism and having a mounting surface for mounting the engine and the electric motor. The transaxle case is formed by an engine-side converter housing, a transmission-side transmission case, and a middle wall attached to the converter housing and separating the converter housing from the transmission case, the power transmission mechanism being housed between the converter housing and the middle wall.

A hybrid drive system for electric vehicle is disclosed. The system includes a rear wheel. The system also includes a first motor mechanically coupled to the rear wheel and an internal combustion engine. The first motor is configured to drive power for the electrical vehicle to reach a fraction of a predetermined threshold value of rotations per minute (RPM). The system also includes a second motor mechanically coupled to the internal combustion engine via the chain drive transmission unit with a one way bearing. The second motor is configured to receive an activation signal to power the internal combustion engine to transfer the power driven to the rear wheel via the continuously variable transmission unit upon attaining the fraction of the predetermined threshold value of rotations per minute (RPM) by the first motor.

Present invention relates to a vehicle (100) comprising a hybrid electric drive system (106) comprising an electric motor (108) and an epicyclic gear system (110), a common propeller shaft (236) and an internal combustion (IC) engine assembly (118) with a gearbox (116). The hybrid electric drive system (106) is configured between IC engine assembly (118), gearbox (116) and a rear axle differential (238). The hybrid electric drive system (106) performs dual role of allowing drive from each powertrain to be transmitted individually to wheels of the vehicle (102, 104) and adding the drive from each powertrain together and seamlessly transmitting to the wheels of the vehicle (102, 104). Power from both the IC engine (118) and the hybrid electric drive system (106) is transmitted by the common propeller shaft (236) to the rear axle differential (238) through a differential gear.

A clutch actuator assembly includes a motor that is arranged in an actuator housing, a gear train that couples the motor and an output shaft, an actuator lever that is affixed to the output shaft and includes a profile that has first and second features that respectively correspond to first and second positions, a detent that cooperates with the profile and is configured to retain the actuator lever in one of the first and second positions, and a pawl that is operatively connected to the actuator lever and is configured to selectively engage with a clutch component in response to movement of the actuator lever between the first and second positions.

The present disclosure provides a hybrid electric vehicle, a drive control method and a drive control device of a hybrid electric vehicle. The drive control method includes: obtaining a current gear position of the hybrid electric vehicle and a current electric charge level of a power battery; determining whether the vehicle is within a speed start-stop interval according to the current gear position of the hybrid electric vehicle and the current electric charge level of the power battery; obtaining a slope of a road on which the vehicle is driving and a current speed of the hybrid electric vehicle, if the vehicle is within a speed start-stop interval; and controlling a working state of an engine and/or a motor of the hybrid electric vehicle according to the slope of the road on which the vehicle is driving and the current speed of the vehicle.

An electric machine (EM) is arranged within a housing (GG). A stator (S) is electrically insulated with respect to the housing (GG). A stator laminated core (SB) is secured at the housing (GG) via multiple screws (SS) aligned in the axial direction. Electrically insulating spacers (SD) are arranged between the stator laminated core (SB) and the housing (GG). At least two centering pins (SC) are provided for centering the stator (S) in the housing (GG).