Abstract: A powertrain for a vehicle is disclosed that includes an electromagnetic driving unit (10) and a transmission module (20) having a controllable clutch (21) the powertrain further includes a control system to control the electromagnetic driving unit and to control the clutch. The controller has a safety operational mode wherein it controls an engagement of the controllable clutch with a feedback loop in which a desired extent of engagement is positively correlated to a difference between an extent of slip as indicated by the slip indicator and a positive reference value for the extent of slip, wherein the slip indicator indicates the extent of slip with a sign that is the product of the sign of the difference between the rotational speed of the input shaft and a rotational speed of the output shaft and a desired driving torque sign.

Abstract: A transmission system for a vehicle comprises a first partial transmission (T1) with a first controllable clutch (C1) and a second partial transmission (T2) with a second controllable clutch (C2) each forming a respective transmission path between an input (ci; ci1, ci2) and a common output (to), the first and the second controllable clutch (C1, C2) having a first and a second actuating means (CA1,CA2) respectively, to control an operational state of said controllable clutches. A controller (CNTR) is provided to control the first and the second actuating means, the controller being configured to selectively assume one of a plurality of control modes. These include amongst others a safety control mode which is selected upon detecting that a value of an acceleration of the vehicle is lower than a negative threshold value.

Abstract: A powertrain for a vehicle is disclosed that includes an electromagnetic driving unit (10) and a transmission module (20) comprising a controllable clutch (21) the powertrain further includes a control system to control the electromagnetic driving unit and to control the clutch. The controller has a safety operational mode wherein it controls an engagement of the controllable clutch with a feedback loop in which a desired extent of engagement is positively correlated to a difference between an extent of slip as indicated by the slip indicator and a positive reference value for said extent of slip, wherein the slip indicator indicates the extent of slip with a sign that is the product of the sign of the difference between the rotational speed of the input shaft and a rotational speed of the output shaft and a desired driving torque sign.

Abstract: A transmission system is disclosed, having a clutch module with an input and a first and a second output. Between the first output and the input, a first clutch device is present, and between the second output and the input a second clutch device is present. The transmission system further includes a transmission module having a first partial transmission and a second partial transmission, in which the two outputs of the clutch module are connected to the two inputs of the transmission module.

Abstract: Transmission system (TS) comprising: a clutch module (CM) having an input (In) and a first and a second output (O1, O2), wherein between the first output and the input, a first clutch device (B, B1, C2) provided with first actuating means is present, and between the second output and the input a second clutch device (C, B2) with second actuating means is present, and a transmission module (TM), with an output (Out) and a first and a second input (i1, i2), wherein between the first input and the output, a first partial transmission provided with at least one transmission (VAR) is present, and between the second input and the output a second partial transmission provided with at least one further transmission or a mechanical connection is present, in which the two outputs (O1, O2) of the clutch module are connected to the two inputs (i1, i2) of the transmission module.

Abstract: A transmission system for a vehicle is disclosed, comprising an input shaft which can be connected to a drive source, and an output shaft which can be connected to a load.

Abstract: A drive mechanism comprises a transmission as well as an electromotor/generator. The transmission is connected via an input to the electromotor/generator and via an output to the wheels. The transmission has two planetary gear sets having three rotational members each, of which first rotational members are connected to the input, second rotational members are connected to the output and third rotational members are connected to a first and second brake respectively. By actuating either of the brakes a speed transforming gear is created between the input and the output. By actuating one brake during the releasing of the other brake, it is possible to switch between the two speed transforming gears without an interruption of the torque transfer from the electromotor/generator to the load or vice versa.

Abstract: A transmission system for a vehicle, comprising an input shaft which can be connected to a drive source, and an output shaft which can be connected to a load comprises:—a clutch module which has an input that is connected to the input shaft and a first and a second output, as well as first clutch means which are located between the input and the first output and second clutch means which are located between the input and the second output, and gear stage means which are located between the input and the first or second output, as well as—a transmission module which has a first and a second input and an output that is connected to the output shaft, as well as a first sub-transmission which is located between the first input and the output, and a second sub-transmission which is located between the second input and the output,—where the first output of the clutch module is connected to a first input of the transmission module and the second input of the clutch module is connected to the second input of the tran

Abstract: Transmission system (TS) comprising: a clutch module (CM) having an input (In) and a first and a second output (O1, O2), wherein between the first output and the input, a first clutch device (B, B1, C2) provided with first actuating means is present, and between the second output and the input a second clutch device (C, B2) with second actuating means is present, and a transmission module (TM), with an output (Out) and a first and a second input (i1, i2), wherein between the first input and the output, a first partial transmission provided with at least one transmission (VAR) is present, and between the second input and the output a second partial transmission provided with at least one further transmission or a mechanical connection is present, in which the two outputs (O1, O2) of the clutch module are connected to the two inputs (i1, i2) of the transmission module.

Abstract: An exemplary transmission system (TS) includes a clutch module (CM) having an input (In) and a first and a second output (O1, O2). A first clutch device (B, B1, C2) provided with a first actuator is present between the first output and the input, and a second clutch device (C, B2) with a second actuator is present between the second output and the input. The transmission system also includes a transmission module (TM), with an output (Out) and a first and a second input (i1, i2). A first partial transmission provided with at least one transmission (VAR) is present between the first input and the output, and a second partial transmission provided with at least one further transmission or a mechanical connection is present between the second input and the output. Two outputs (O1, O2) of the clutch module are connected to the two inputs (i1, i2) of the transmission module.

Abstract: A clutch and/or brake module has a heat sink which is attached to a transmission housing for the purpose of discharging heat. The brake module further has a brake disc, which is connected to a rotational member formed by a shaft (schematically indicated by a center line). The brake disc is provided on one side with a lining and faces with this side towards the heat sink. The brake is a dry brake and is not lubricated. The brake module further has an actuation system (cylinder with piston movable therein, schematically indicated by an arrow) which can exert an axial pressing force directly on the brake disc. The brake disc is located axially between the heat sink and the actuation system. The cooling plate is secured to a transmission housing, a part of which is schematically shown.

Abstract: A flywheel module comprises a coupling unit which has an input shaft and an output shaft. This coupling unit has a first coupling of which a first coupling half can be connected to a combustion engine and a second coupling half can be connected to a continuously variable transmission. The flywheel module further comprises a flywheel unit which has an in/output and is formed by a flywheel and a reduction gear unit connected to the flywheel. This flywheel unit is exclusively connected to the in/output via the coupling unit.

Abstract: A driveline 1 comprises a transmission 7 having an input shaft 9 and an output shaft 13 as well as an end drive 19 connected to the output shaft of the transmission, which end drive includes a differential 21. The transmission comprises a plurality of switchable gear trains as well as a shift drum 23 which has three cam profiles 25, 27, 29 and three shift forks S01, S23, S4X provided with cam followers for moving a clutch element for coupling a gear to a shaft present in the transmission. The shift drum 23 further includes a further cam profile 31 and the transmission comprises a further cam follower F4 as well as a locking element which is connected via a gear unit 35 to the further cam follower and locks a driving element 37 in the driveline so that drive shafts connected to the differential are locked against rotation.

Abstract: A flywheel module comprises a bypass transmission with three rotational members, and a flywheel connected to a first one of the rotational members. A second one of the rotational members is connected to the input/output. An electric machine which can function both as a motor and as a generator is connected to a third one of the rotational members. An actuator is provided for actuating the electric machine. A control unit is provided for driving the actuator, as well as an operator for operating the brake and the clutch.

Abstract: A transmission which is pre-eminently suitable for an electric and/or hybrid drive has an input which can be connected to an electromotor/generator, and an output which can be connected to a load. The transmission has two parallel transmission paths between the input and output, first coupling means being present in the first transmission path and second coupling means being present in the second transmission path. Furthermore, a gear reduction is present in at least either of the two transmission paths. The first coupling means are arranged such that they are not capable of dissipating significant power and the second coupling means are arranged such that they are capable indeed of dissipating significant power.

Abstract: A driveline 1 comprises a transmission 7 having an input shaft 9 and an output shaft 13 as well as an end drive 19 connected to the output shaft of the transmission, which end drive includes a differential 21. The transmission comprises a plurality of switchable gear trains as well as a shift drum 23 which has three cam profiles 25, 27, 29 and three shift forks S01, S23, S4X provided with cam followers for moving a clutch element for coupling a gear to a shaft present in the transmission. The shift drum 23 further includes a further cam profile 31 and the transmission comprises a further cam follower F4 as well as a locking element which is connected via a gear unit 35 to the further cam follower and locks a driving element 37 in the driveline so that drive shafts connected to the differential are locked against rotation.

Abstract: Transmission system (TS) comprising: a clutch module (CM) having an input (In) and a first and a second output (O1, O2), wherein between the first output and the input, a first clutch device (B, B1, C2) provided with first actuating means is present, and between the second output and the input a second clutch device (C, B2) with second actuating means is present, and a transmission module (TM), with an output (Out) and a first and a second input (i1, i2), wherein between the first input and the output, a first partial transmission provided with at least one transmission (VAR) is present, and between the second input and the output a second partial transmission provided with at least one further transmission or a mechanical connection is present, in which the two outputs (O1, O2) of the clutch module are connected to the two inputs (i1, i2) of the transmission module.

Abstract: A hydraulic system 71, more particularly for the actuation of a transmission system, comprises an oil pump 67, which is driven by one of the shafts of the transmission system or a drive source, which pump has an input and an output, which input is connected to the oil tank 75 and which output is connected to a main line 73, a switchable valve 91, which is located between the output 69 of the oil pump 67 and the oil tank 75, a restriction 93, which is located between the switchable valve 91 and the oil tank 75, and a further valve 95, which is located between the output 69 of the oil pump 67 and the main line 73. The switchable valve 91 is operated such that the line pressure produced by the oil pump can be made lower or higher than the pressure in the main line 73.

Abstract: A flywheel module has a closed housing with an opening, and an output which is formed by an output shaft that extends outward through the opening. A sealing ring is present between the output shaft and the boundary wall of the opening. A flywheel is accommodated in the housing, which flywheel is connected via a clutch to a first gear of a transmission whose other gear is connected to a first portion of a centrifugal disengaging clutch of which the other portion is connected to the output shaft. With this it be avoided that the flywheel starts to run at too high a speed, which guarantees the safety of the flywheel module.

Abstract: A transmission system for a vehicle has a first transmission module with at least one speed transforming gear and at least one coupling. The system may further include a second transmission module with at least one speed transforming gear and at least one coupling, wherein an input shaft of the first transmission module is connected to a drive source and an output shaft of the second transmission module iss connected to an end drive. An electromotor may be coupled to the first transmission module and/or the second transmission module, via a mount point. The first transmission module and the second transmission module may be arranged in series with an output shaft of the first transmission module being connected to an input shaft of the second transmission module.