Methods and systems for a vehicle transmission are provided. In one example, a vehicle transmission system includes a first planetary gear set rotationally coupled to a second planetary gear set and a first electrical machine rotationally coupled to a gear in the first planetary gear set. The vehicle transmission system further includes a second electrical machine rotationally coupled to a gear in the second planetary gear set and a first clutch configured to selectively disconnect the first and second planetary gear sets from a drive axle.

A transmission (G) for a motor vehicle includes an electric machine (EM1), a first input shaft (GW1), a second input shaft (GW2), an output shaft (GWA), three planetary gear sets (P1, P2, P3), and at least six shift elements (A, B, C, D, E, F). Different gears are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F), and different operating modes are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F) in interaction with the electric machine (EM1). A drive train for a motor vehicle with the transmission (G) and a method for operating the transmission (G) are also provided.

An example system includes a motive application having a prime mover, a load, a driveline, and a motor/generator that couples to the driveline. The system includes a number of batteries, and a battery assembly that electrically couples the batteries to the motor/generator. The battery assembly includes a power interface positioned at a first end of the battery assembly, the power interface including a low voltage coupling and a high voltage coupling, and a service electrically interposed between the batteries and the power interface. The service disconnect in a first position couples at least one of the batteries to the first low voltage coupling and couples the batteries to the second high voltage coupling. The service disconnect in a second position de-couples the batteries from the low voltage coupling and the high voltage coupling.

Methods and systems for a vehicle transmission are provided. In one example, a vehicle transmission system includes a first planetary gear set rotationally coupled to a second planetary gear set and a first electrical machine rotationally coupled to a gear in the first planetary gear set. The vehicle transmission system further includes a second electrical machine rotationally coupled to a gear in the second planetary gear set and a first clutch configured to selectively disconnect the first and second planetary gear sets from a drive axle.

A hybridised powertrain unit (1) for a motor vehicle is provided, with a first part-unit (3) having an electrical machine (2) and with a second part-unit (6) having an internal combustion engine (4) and a powershift transmission (5) connected downstream of the internal combustion engine (4), wherein the two part-units (3, 6) are coupled on the output side to an output drive (10) via a joint planetary gearbox (7), the ring gear (8) of which is connected to a transmission output (9) of the powershift transmission (5). A method for operating this powertrain unit (1) is also provided.

A speed change control system for a vehicle configured to reduce uncomfortable feeling of a driver when shifting an operating mode via the fixed mode. When a required drive force to propel the vehicle is increased, a controller shifts the operating mode from a first continuously variable mode to a second continuously variable mode via a fixed mode. In this case, the controller increases an engine speed to a first target speed from a point when shifting from the fixed mode to the second continuously variable mode, and further increase the engine speed to a second target speed calculated based on the required drive force. In addition, the controller reduces the first target speed with an increase in at least any one of a first elapsed time and a second elapsed time.

A drive system including first and second power sources, first and second output shafts, a differential mechanism, and an electronic control unit, and a control method therefor are provided. The differential mechanism is configured such that the second power source is connected to a first rotating element, one output shaft of a vehicle is connected to a second rotating element, and the other output shaft of the vehicle is connected to a third rotating element so as to be able to be connected to or disconnected from the third rotating element by a connect-disconnect mechanism, and includes at least one of an engagement element that selectively engages any two of the three rotating elements and an engagement element that selectively engages the third rotating element to a fixing member. The electronic control unit is configured to, during turning, prohibit switching between a first drive mode and a second drive mode.

Methods and systems for a vehicle transmission are provided. In one example, a vehicle transmission system includes a first planetary gear set rotationally coupled to a second planetary gear set and a first electrical machine rotationally coupled to a gear in the first planetary gear set. The vehicle transmission system further includes a second electrical machine rotationally coupled to a gear in the second planetary gear set and a first clutch configured to selectively disconnect the first and second planetary gear sets from a drive axle.

In a vehicle drive device, a second power source is connected to a first rotating element of a differential mechanism. The other output shaft of a first output shaft and a second output shaft is connected to a third rotating element so as to be disconnectable and connectable by a disconnection-connection mechanism. A control device places the disconnection-connection mechanism in a disconnected state. When a second traveling mode in which the third rotating element is fixed to a fixing member through engagement of a first engaging element is switched to a first traveling mode in which the disconnection-connection mechanism is placed in a connected state, the control device disengages the first engaging element, executes synchronous control in which rotational speeds of the other output shaft and the third rotating element are synchronized by a second engaging element, and switches the disconnection-connection mechanism from the disconnected state to the connected state.

A transmission for vehicles with hybrid propulsion systems. In particular agricultural or industrial vehicles, wherein the propulsion system comprises a motor of the non-regenerative type, a motor of the regenerative type which is associated with an energy accumulator and with a generator. The transmission includes an input shaft which is connected to the motor of the non-regenerative type and to which the generator is connected, a low-speed shaft and a high-speed shaft which can be selectively coupled to the input shaft by respective clutches, a movement combination device, an output shaft which is connected to the movement combination mechanism, and a blocking element which is configured to block the low-speed shaft or the high-speed shaft.