A method is provided for controlling a hybrid drive train comprising a first partial drive train including an internal combustion engine having a crankshaft and a second partial drive train, which is separated from the first partial drive train by a torsional elasticity, having an electric machine with a rotor. A rotational characteristic value of the first partial drive train is detected via a sensor arranged on the torsional elasticity. A rotational characteristic value of the rotor is detected via a device engaged with the rotor. A quality index is determined based on the rational characteristic value of the first partial drive train and the rotational characteristic value of the rotor. The electric machine is controller to optimize the quality index.

When an accelerator operating speed is greater than a quick depression threshold value, a start threshold value is set to a value that is smaller than a selection threshold value between a single-drive mode and a double-drive mode in an EV drive mode. Then, when a required torque becomes greater than the start threshold value, an engine is started.

A driveline includes a driver configured to be positioned between an engine and a transmission. The driver includes a housing, a motor/generator, and a clutch. The housing includes an engine mount configured to couple to the engine and a backing plate configured to couple to the transmission. The motor/generator is disposed within the housing and configured to couple to an input of the transmission. The clutch is disposed within the housing and coupled to the motor/generator. The clutch is configured to selectively couple an output of the engine to the motor/generator. The clutch is configured to be spring-biased into engagement with the engine and pneumatically disengaged by an air supply selectively provided thereto.

A military vehicle includes a chassis, a front end accessory drive (FEAD), and circuitry. The chassis includes an engine and an integrated motor generator (IMG). The FEAD includes multiple accessories and an electric motor-generator. The circuitry is configured to operate the military vehicle according to different modes. The circuitry is configured to receive a user input indicating a selected mode of the modes, and operate the chassis and the FEAD of the military vehicle according to the selected mode. The modes include an engine mode and an electric mode. In the engine mode, the engine drives the FEAD and the tractive elements of the military vehicle through the IMG for transportation. In the electric mode, the engine is shut off to reduce a sound output of the military vehicle and the IMG drives the tractive elements of the military vehicle for transportation and the electric motor-generator drives the FEAD.

A method for operating a drive device for a motor vehicle with an internal combustion engine and a dual clutch transmission. In a starting operation of the drive device directed at a startup of the motor vehicle, an electric machine coupled to a first input shaft is used, when the first shift clutch is at least partially engaged and the first sub-transmission is disengaged and when the second shift clutch is at least partially engaged and the second sub-transmission is engaged, for providing at the output shaft a starting torque used for starting the internal combustion engine and a drive torque directed at the startup of the motor vehicle, and/or in that, in the starting operation, the internal combustion engine is operated, when the second shift clutch is at least partially engaged and the second sub-transmission is engaged.

The present disclosure is directed to an electric generator and motor transmission system that is capable of operating with high energy, wide operating range and extremely variable torque and RPM conditions. In accordance with various embodiments, the disclosed system is operable to: dynamically change the output size of the motor/generator by modularly engaging and disengaging rotor/stator sets as power demands increase or decrease; activate one stator or another within the rotor/stator sets as torque/RPM or amperage/voltage requirements change; and/or change from parallel to series winding configurations or the reverse through sets of 2, 4, 6 or more parallel, three-phase, non-twisted coil windings with switchable separated center tap to efficiently meet torque/RPM or amperage/voltage requirements.

A front end accessory drive (FEAD) for a military vehicle. The FEAD includes a first belt, a second belt, multiple accessories, an electric motor-generator, at least one other accessory, and a sprag clutch. The accessories and the electric motor-generator are coupled with the first belt. The at least one other accessory, the first belt, and the second belt are coupled with the sprag clutch. The second belt is configured to couple with an output shaft of an engine of the military vehicle and be driven by the output shaft of the engine to drive the sprag clutch. The sprag clutch is thereby configured to drive the at least one other accessory and the first belt, and the first belt is thereby configured to drive the plurality of accessories, and the electric motor-generator.

The inventors' findings relate to a transmission for vehicles, comprising an input side configured for being coupled to a prime mover and an output side configured for being coupled to a driven element wherein the transmission comprises an electromagnetic torque converter (EMTC), wherein the EMTC has at least two output paths, namely the first output path coupled to a gear box which is preferably configured for being coupled to a drive shaft of the vehicle, and a second output path which is configured to be coupled to an auxiliary power provider. The inventors' findings also relate to a vehicle driveline comprising said transmission. Furthermore, the inventors' findings also relate to a vehicle comprising said vehicle driveline.

The invention relates to a method for operating a hybrid drive device (2) which has an internal combustion engine (3) and an electric machine (4) which can be or is operatively connected to the internal combustion engine (3) and can be operated as a generator, wherein in a normal operating mode a temperature of the electric machine (4) is determined by means of a temperature sensor (14), and operation of the electric machine (4) is permitted only if the temperature is lower than a predefined maximum temperature. There is provision here that in the event of a defect in the temperature sensor (14) an emergency operating mode is carried out in which operation of the electric machine (4) is permitted only with limited power, limited torque and/or over a limited time period. The invention further relates to a hybrid drive device (2).

An engine operation control method of a hybrid vehicle for minimizing non-driving fuel consumption upon stopping includes steps of receiving traffic information including signal information of a front traffic signal lamp, determining whether a proceeding-signal change condition is satisfied based on the received signal information upon stopping, setting any one of different engine operation conditions according to the result of determination, and comparing the set engine operation condition with a current vehicle state to determine whether an engine operates or not.