Methods and systems are provided for an electric drive train of a hybrid electric vehicle (HEV). In one example, the electric drive train may include a four-node planetary gear set with a first motor coupled to a first input node, a second motor coupled to a second input node and an engine coupled to a third input node of the planetary gear set. The third node is positioned between the first and second input nodes. Torque delivered to each input node is summed at an output node of the four-node planetary gear set.

A vehicle control device that controls a vehicle which is capable of traveling in a plurality of traveling modes including a first traveling mode and a second traveling mode. And the vehicle control device is capable of executing motor assist, in which electric power of a power storage device is supplied to an electric motor and driving of a drive wheel is assisted by the electric motor, when the vehicle is traveling in the first traveling mode, and is configured to change upper-limit assist electric power, which is an upper-limit value of electric power supplied from the power storage device to the electric motor in order to perform the motor assist, in accordance with a speed of the vehicle and a remaining capacity of the power storage device.

A vehicle control device includes a processor configured to execute computer-readable instructions to perform. The processor is configured to acquiring a state of a first battery and a state of a second battery, acquiring motor power that is consumed by a motor that outputs motive power for traveling, detecting a rotation state of a drive wheel driven by the motor, calculating a first upper power limit value on the basis of the state of the first battery, calculating a second upper power limit value on the basis of the state of the second battery, and controlling the amount of electric power that is supplied from each of the first battery and the second battery to the motor on the basis of the calculated first and second upper power limit values. The controlling the amount of electric power includes determining whether to compensate for the motor power equivalent to the amount of change or limit compensation for the motor power equivalent to the amount of change when the change in the rotation state satisfies a reference condition.

A hybrid vehicle includes an electric generator, a drive motor, a power storage device, a power consuming device, and a controller. The controller is configured to control driving of the power consuming device. The controller is configured to execute power consumption increasing control when a vehicle power balance value is larger than a first threshold while the drive motor operates in a braking-period power generation mode.

Systems and methods are provided for presenting in a hybrid electric vehicle display, proximate to or in some relation to each other, engine power usage, motor-generator power usage, and battery state of charge information. By combining the display of engine power usage, motor-generator power, and battery state of charge information, power distribution and related information may be presented to the operator of a vehicle to explain the vehicle's performance from a power split output and usage perspective. This can provide reassurance or confirmation that the vehicle is operating as it should, identify a problematic condition, etc.

A hybrid vehicle includes a connecting/disconnecting clutch disposed between an engine and an electric motor, an automatic transmission including an input clutch, a starting clutch disposed between the electric motor and the automatic transmission, and a control apparatus for executing an engine-start control operation for starting the engine, by igniting the engine after increasing a rotational speed of the engine by a torque of the electric motor while placing the connecting/disconnecting clutch into an engaged state. In process of the engine-start control operation that is executed when the hybrid vehicle is in a stopped state with the starting clutch being in a released state, the control apparatus places the input clutch in an engaged state until the rotational speed of the engine exceeds a predetermined speed value, and switches the input clutch to a released state after the rotational speed of the engine has exceeded the predetermined speed value.

An electrified vehicle may include an engine, an electric machine selectively coupled to the engine, a high-voltage traction battery electrically coupled to the electric machine and configured to selectively propel the electrified vehicle, an on-board generator including an inverter electrically coupled to the high-voltage traction battery and configured to convert direct current input to alternating current output, power outlets configured to receive power from the inverter of the on-board generator, a user interface, and a controller programmed to control the engine, the electric machine, and the high-voltage traction battery to provide power to on-board generator and to control the inverter to limit the power output by the inverter to the power outlets to one of a user-specified power limit based on input from the user interface, a powertrain power limit associated with the engine, the electric machine, and the high-voltage traction battery, and an inverter hardware power limit.

A method for controlling transient operation of a variable flux machine (VFM) includes, during a shunt angle transition, receiving a commanded and measured shunt angle when operating in a predetermined operating region, e.g., maximum torque per ampere or field weakening. The method includes calculating d-axis and q-axis delta current terms (ΔI.sub.d and ΔI.sub.q) required to maintain an output torque level of the VFM through a duration of the shunt angle transition, then applying the required ΔI.sub.d and ΔI.sub.d terms as feed-forward terms to adjust a d-axis current (I.sub.d) term and a q-axis current (I.sub.q) term from a respective lookup table. In this manner the controller maintains the output torque level of the VFM during the shunt angle transition. An electric powertrain includes the VFM, a TPIM, and the controller. A PM machine may be controlled by substituting temperature for shunt angle.

Electric drive system of a hybrid or electric vehicle comprising at least a first and a second battery pack, said first battery pack being formed by a first plurality of equal cells, wherein a cell of said first plurality of cells identifies a first predetermined C-rate coefficient (power/capacity) and said second battery pack being formed by a second plurality of equal cells, wherein a cell of said first plurality of cells identifies a second predetermined C-rate coefficient (power/capacity) higher than said first predetermined coefficient, and wherein the drive system comprises at least a first and a second set of electromagnetic induction windings, respectively independently powered by said first and second battery pack by means of relative first and second inverter.

Disclosed is a method for calculating a control setpoint of a hybrid powertrain of a motor vehicle, the hybrid powertrain including an electric motor and an internal combustion engine (ICE) that is equipped with a gearbox and that is supplied with fuel. The method includes: acquiring a value relative to a power requested at the vehicle's drive wheels; and determining the contribution of the electric motor and the ICE in order to satisfy the request for power at the drive wheels. The determination step involves calculating a triplet of three values, one value relating to the electromechanical power that the electric motor must provide, one value relating to the thermomechanical power that the ICE must provide and one value relating to the ratio that needs to be engaged in the gearbox, this triplet minimising the fuel consumption of the ICE and the current consumption of the electric motor.