A hybrid vehicle includes: an engine; a battery; a power converter; a relay; a first controller; and a second controller. The second controller is configured to control the engine and the power converter according to allowable charging power and allowable discharging power received from the first controller. The second controller has, as control modes, a normal mode in which the relay is closed and the battery and the power converter are electrically connected and a batteryless drive mode in which the relay is opened to cause the hybrid vehicle to move with the battery electrically disconnected from the power converter. The second controller is configured to select the batteryless drive mode when at least one of the magnitude of the allowable charging power and the magnitude of the allowable discharging power become smaller than a first predetermined value.

A propulsion system for a hybrid electric vehicle comprises a traction motor having first and second stator windings; a power source having a DC power output coupled to the first windings; a battery having a DC power output coupled to the second windings; and a controller to independently control: (i) a first power level output at the first DC power output, and (ii) a second power level of motive power output by the traction motor; wherein responsive to a signal to set the second power level less than full capacity of the traction motor, the controller provides a power difference between the first and second power levels from the second windings to the battery.

An apparatus of controlling an engine including an electric supercharger includes: an engine to combust fuel to generate power; a drive motor to assist the power of the engine and selectively operate as a generator to generate electrical energy; a battery configured to supply electrical energy to the drive motor and to be charged by the electrical energy generated from the drive motor; a plurality of electric superchargers respectively installed in a plurality of intake lines through which an ambient air flows to be supplied to a combustion chamber of the engine; and a controller that based on a determined driving tendency, adjusts a target speed of the electric superchargers of the plurality of electric superchargers, determine a driving mode of the electric superchargers, limits a maximum output of the engine, and variably adjusts a SOC electricity-generating region where the engine charges the battery.

Responsive to a user request, a controller operates an engine of a vehicle while parked to charge a traction battery to a target state of charge that exceeds a maximum state of charge limit, used during drive of the vehicle by an electric machine, in advance of a predefined period of time.

A hybrid vehicle includes an engine, a drive motor selectively operated as a generator to generate electrical energy; a battery charged with the electrical energy generated in the drive motor; a navigation device determining a travelling path of the hybrid vehicle from a departure of the hybrid vehicle to a destination of the hybrid vehicle and an expected vehicle speed of the travelling path; and a controller which divides an entire travelling path of the hybrid vehicle expected by the navigation device into one or more travelling sections based on the travelling information, determines an average vehicle speed of each travelling section, an average vehicle speed of the entire travelling path, and travelling energy of the vehicle in each travelling section, determines an expected State Of Charge (SOC) profile of the battery based on the travelling energy, and determines a charge mode of the battery based on the average vehicle speed and an initial SOC value of the expected SOC profile.

The invention relates to a method for propelling a vehicle comprising a first power source being an internal combustion engine and a second power source comprising at least one electrical machine. The vehicle is configured to be selectively driven according to a first mode and a second mode, wherein said second mode is prioritized more in relation to fuel efficiency of said vehicle than said first mode. When a maximum power for propelling said vehicle is requested, power delivered by said first power source and said second power source is controlled such that the total power delivered by said first and said second power source exceeds the maximum deliverable power of said first power source. The total power delivered by said first and said second power source is allowed to exceed the maximum deliverable power of said first power source when said vehicle is driven according to said second mode.

An ECU switches a control mode to an HV mode when an SOC decreases to a lower limit during an EV mode. The ECU calculates an evaluation value ΣD of high-rate deterioration indicating a deterioration component of a secondary battery due to non-uniformity in salt concentration in a battery. The ECU executes high-rate deterioration inhibiting control when the HV mode is currently selected and when the battery is evaluated as deteriorating based on the evaluation value ΣD, the high-rate deterioration inhibiting control being control for increasing the SOC by making a control target of the SOC higher than the lower limit of the SOC. On the other hand, the ECU does not execute the high-rate deterioration inhibiting control when the EV mode is currently selected.

A method for controlling the distribution of power to a traction motor in a plug-in electric vehicle having a plurality of on-board sources of electric power. Power is distributed at a normal power control relationship in response to an operator control input during operation in a normal mode. Power is depleted at a first rate during operation of the vehicle in the normal mode. Power is distributed at a derate power control relationship in response to the operator control input during operation in a derate mode. Power is depleted at a second rate that is less than the first rate during operation in the derate mode to conserve the power of the one or more on-board sources. Operation in the derate mode can be initiated in response to information from sensors identifying a vehicle condition indicating a battery charge limitation.

A vehicle system of a hybrid vehicle includes: a navigation device that searches a movement path to a destination of a vehicle; and a vehicle control device configured to predict driving energy of a road section included in the movement path according to a vehicle speed of the vehicle when the movement path includes an exhaust gas emission restriction zone, predict first consumption State of charge (SOC) value of the battery consumed within the exhaust gas emission restriction zone based on the driving energy for a case in which the vehicle drives in the exhaust gas emission restriction zone without driving the engine, determine a target SOC value of the battery at a time when the vehicle enters the exhaust gas emission restriction zone based on the predicted first consumption SOC, and control the operation of the vehicle.

An embodiment method of controlling a state of charge of a vehicle includes receiving input of use information for driving an external device by power of a battery for driving an electric motor, determining expected power consumption of the external device based on the use information, determining a target state of charge based on the expected power consumption, and controlling a driving mode based on the target state of charge.