A method of controlling a powertrain of a vehicle is carried out such that during shifting in which a first clutch is released and a second clutch is engaged, whether a current shift phase is a torque phase or an inertia phase is determined. Different cost functions for the torque phase and the inertia phase are predefined. A control input change for minimizing the cost functions in the torque phase and the inertia phase is calculated. At least two among input torque, first clutch torque, or second clutch torque input to a transmission are controlled by applying the control input change calculated for the torque phase and the inertia phase.

A method for checking the plausibility of a lateral acceleration and further input variables of a transmission shifting program includes measuring, over a defined route section, a lateral acceleration signal, calculating a mean value of the measured lateral acceleration signal, and calculating, based on the further input variables, a plurality of n≥2 different lateral acceleration sensor reference variables. The different lateral acceleration sensor reference variables are calculated by a lateral acceleration reference model for the defined route section. The method further includes determining, for each respective lateral acceleration sensor reference variable, a respective mean value of a calculated lateral acceleration, determining deviations of the mean value of the measured lateral acceleration and the mean values of the calculated lateral accelerations, and evaluating, based on a magnitude of the deviations, whether or not the measured lateral acceleration and the further input variables are plausible.

A control method of an electric vehicle is provided. The method includes generation of a virtual sensation of gear shifting of an electric vehicle capable of freely, directly changing and adjusting variables related to generation of the virtual sensation of gear shifting to provide drivers with preferred virtual sensation of gear shifting. The virtual sensation of gear shifting is generated according to driver's driving input values and vehicle conditions based on variable values related to the virtual sensation of gear shifting generation preset by a driver to simulate multi-speed gear shifting that the driver may sense when shifting in a vehicle having a multi-speed transmission, while driving an electric vehicle without the multi-speed transmission.

A method of controlling traveling of an electric vehicle is provided. The method includes generating a motor torque command using a basic torque command and a virtual gear-shift intervention torque for generating a feeling of real gear shifting, while an electric vehicle travels. A motor is operated for driving the electric vehicle according to the generated motor torque command to generate the feeling thereof. Ingenerating the feeling thereof, during at least a portion of time during which the feeling thereof is generated, boost control of the motor operation is performed such that a motor torque exceeding an allowable torque of the motor is generated, and thus the generation of the feeling thereof and the boost control are performed in conjunction with each other.

A hybrid gearbox has a shift gearbox including at least one fixed ratio gear having a gear ratio both for the internal combustion engine and the electric motor-generator with respect to a power train connection, and speed superposition gearbox which is designed to provide a power-split gear having a variable speed ratio and a fixed torque ratio with respect to the internal combustion engine connection and the power train connection, wherein the variable speed ratio is formed by a modulation of a speed provided by the internal combustion engine on a speed provided by the electric motor-generator. The hybrid gearbox has at least one operating mode in which gear changes are only carried out between the fixed-ratio gear and the power-split gear.

A hybrid gearbox has a shift gearbox including at least one fixed ratio gear having a gear ratio both for the internal combustion engine and the electric motor-generator with respect to a power train connection, and speed superposition gearbox which is designed to provide a power-split gear having a variable speed ratio and a fixed torque ratio with respect to the internal combustion engine connection and the power train connection, wherein the variable speed ratio is formed by a modulation of a speed provided by the internal combustion engine on a speed provided by the electric motor-generator. The hybrid gearbox has at least one operating mode in which gear changes are only carried out between the fixed-ratio gear and the power-split gear.

A vehicular driving control system and a method for operating the same are provided, may include an information provider to provide information on a front road of a vehicle, a transmission controller to control gear shifting by predicting a condition on the front road based on the information on the front road, and a diagnosing device to diagnose a failure status by verifying matching with the information on the front road, and to restrict a predictive gear-shifting controlling operation of the transmission controller, according to a result of the diagnosing.

A vehicular driving control system and a method for operating the same are provided, may include an information provider to provide information on a front road of a vehicle, a transmission controller to control gear shifting by predicting a condition on the front road based on the information on the front road, and a diagnosing device to diagnose a failure status by verifying matching with the information on the front road, and to restrict a predictive gear-shifting controlling operation of the transmission controller, according to a result of the diagnosing.

A hybrid sub-assembly for driving a vehicle includes at least one primary shaft, at least one secondary shaft, a transmission gearbox including at least one intermediate shaft different from the primary shaft and the secondary shaft, and an electromotive unit. The electromotive unit includes at least one reversible electric machine, and a coupling device that can take up at least one intermediate coupling position in which an output shaft of the reversible electric machine is kinematically connected to the intermediate shaft, and a secondary coupling position in which an output shaft of the reversible electric machine is kinematically connected to the secondary shaft without going via the intermediate shaft.

A method for serial operation of a motor vehicle with a transmission having a first electric machine, which is operated as a motor for driving the motor vehicle, and a second electric machine, which is operated as a generator, includes, after a generation of a change-over signal, switching the first electric machine from the operation as a motor to the operation as a generator, and switching the second electric machine from the operation as a generator to the operation as a motor in order to drive the motor vehicle.