A control device for a vehicle is provided with a catalyst warmup control part supplying electric power to a conductive base to warm up a catalyst device if the temperature of the conductive base is less than a predetermined temperature and the state of charge of the battery is less than a second state of charge larger than a first state of charge when the state of charge of the battery is equal to or greater than the predetermined first state of charge and a driving mode of the vehicle is set to an EV mode in which at least the output of the rotary electric machine is controlled to make the vehicle run. The catalyst warmup control part sets the second state of charge so that the second state of charge becomes larger in the case where the resistance value of the conductive base is large compared to when it is small.

The control device controls the first MG and the second MG so that the input power to the power storage device does not exceed the input limit Win. Further, the control device controls the first MG and the engine so that the rotational speed of the engine approaches the target when the engine is operating under load, when the input limit Win is lowered in a situation where the second MG moves backward while generating torque in the forward direction, and the engine is operating under load, the control device suppresses the amount of power generated by the first MG.

A vehicle comprises a combustion engine, an electric machine, a front axle with front driving wheels, a rear axle with rear driving wheels, at least one electric module, at least one primary power transmission device and at least one secondary power transmission device. The electric machine is connected across the at least one primary power transmission device to at least one driving wheel of a first one of the two axles or separated from the at least one driving wheel of the first one of the two axles. The combustion engine is connected across the at least one primary power transmission device to at least one driving wheel of a second one of the two axles or separated from the at least one driving wheel of the second one of the two axles. The electric machine is connected across the at least one secondary power transmission device to the combustion engine or separated from the combustion engine. Two energy transfer functions are carried out for the vehicle, wherein the electric machine in the energy transfer functions is separated by the at least one primary power transmission device from the at least one driving wheel and it is connected by the at least one secondary power transmission device to the combustion engine, wherein a generator operation is carried out by the electric machine when carrying out a first energy transfer function, wherein mechanical energy of the operating combustion engine is transformed into electrical energy by the electric machine and provided to the at least one electric module, and wherein a motor operation is carried out by the electric machine when carrying out a second energy transfer function, wherein electric energy from the at least one electric module is transformed into mechanical energy by the electric machine and provided to the combustion engine.

A vehicle comprises a combustion engine, an electric machine, a front axle with front driving wheels, a rear axle with rear driving wheels, at least one electric module, at least one primary power transmission device and at least one secondary power transmission device. The electric machine is connected across the at least one primary power transmission device to at least one driving wheel of a first one of the two axles or separated from the at least one driving wheel of the first one of the two axles. The combustion engine is connected across the at least one primary power transmission device to at least one driving wheel of a second one of the two axles or separated from the at least one driving wheel of the second one of the two axles. The electric machine is connected across the at least one secondary power transmission device to the combustion engine or separated from the combustion engine. Two energy transfer functions are carried out for the vehicle, wherein the electric machine in the energy transfer functions is separated by the at least one primary power transmission device from the at least one driving wheel and it is connected by the at least one secondary power transmission device to the combustion engine, wherein a generator operation is carried out by the electric machine when carrying out a first energy transfer function, wherein mechanical energy of the operating combustion engine is transformed into electrical energy by the electric machine and provided to the at least one electric module, and wherein a motor operation is carried out by the electric machine when carrying out a second energy transfer function, wherein electric energy from the at least one electric module is transformed into mechanical energy by the electric machine and provided to the combustion engine.

A hybrid power transmission apparatus for a vehicle is disclosed. The transmission includes an engine and first and second motor-generators as power sources. The transmission may include: a planetary gear set configured to include a first rotation element that is operatively connected to the first motor-generator, a second rotating element that is operatively connected to the engine and operatively connected to a first intermediate shaft, and a third rotation element to which a second intermediate shaft is operatively connected; a synchronizer configured to optionally operatively connect the second motor-generator to the first intermediate shaft, the second intermediate shaft, or both the first and second intermediate shafts; and an output shaft operatively connected to the second intermediate shaft to output power.

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 control device for a vehicle drive unit is configured to control, based on an operating state of a vehicle, a vehicle drive unit having one or more power sources. The control device includes a processor and a storage device. The storage device is configured to store a vehicle front-rear acceleration prediction model being a machine learning model that receives as an input a command torque and outputs predicted acceleration. The processor is configured to: execute a predicted acceleration calculation process using the vehicle front-rear acceleration prediction model; and execute a command torque calculation process to calculate the command torque that minimizes an evaluation function. The evaluation function minimizes a deviation of the predicted acceleration with respect to a target vehicle front-rear acceleration according to a target torque based on the operating state while reducing a deviation of the command torque with respect to the target torque.

An engine unit includes: an engine that is able to independently inject fuel into cylinders; a cleaning device that cleans exhaust gas from the engine; and a control device that performs low-temperature starting control for increasing an amount of injected fuel when the engine is started at a low temperature. The control device performs temperature increase control for performing fuel cutoff for some cylinders of the engine and increasing an amount of fuel injected into other cylinders after an increase in an amount of fuel in the low-temperature starting control has reached a first predetermined amount when an increase in temperature of the cleaning device is requested while the low-temperature starting control is being performed.

A hybrid vehicle includes: an engine; a motor; a drive system battery connected to a drive system power line; an auxiliary system battery connected to an auxiliary system power line; a bidirectional power converter configured to step down power on the drive system power line to supply the stepped-down power to the auxiliary system power line, and configured to boost power on the auxiliary system power line to supply the boosted power to the drive system power line; and a control device. The control device is configured to, upon a cold start in which the engine is started, control the engine, the motor, and the bidirectional power converter to cause the motor to crank the engine while causing the bidirectional power converter to boost the power on the auxiliary system power line to supply the boosted power to the drive system power line.