An electric power supply control apparatus for a vehicle decreases a first electric power prior to switching the modes, when a sum of a request value of a second electric power and the first electric power exceeds a total electric power upper limit value in the mode before the switching, and switches the modes after the sum of the decreased first electric power and the request value of the second electric power becomes equal to or smaller than the total electric power upper limit value.

A control system for a hybrid vehicle configured to avoid unintentional reduction in a driving force is provided. The control system is configured to estimate a vehicle speed after a predetermined period of time during propulsion of the vehicle under single-motor mode, and to shift the operating mode directly from the single-motor mode to an engine mode while skipping a dual-motor mode, if a current operating point of the vehicle enters into an operating region where both of the second mode and the third mode are available but the operating mode is expected to be further shifted to the engine mode.

An electrified vehicle according to an exemplary aspect of the present disclosure includes, among other things, an energy recovery mechanism, and a controller configured to selectively activate at least a battery cooling mode to dissipate excess power from the energy recovery mechanism.

A control apparatus for a hybrid vehicle including an engine and a motor, includes a controller to update an allowable input current value in accordance with the battery state and to control an input to the battery, the allowable input current value being the maximum current value to which the battery input is permitted. The controller performs control such that limitation of the battery input in accordance with the allowable input current value is not performed if a deterioration degree of a catalyst for purifying an exhaust gas from the engine is larger than a predetermined value when an engine braking force and a regenerative motor braking force are applied during deceleration.

A control system for a hybrid vehicle includes an internal combustion engine, a rotary electric machine, a battery, a cooling fan configured to cool the battery, and a controller. The controller is configured to determine an operation of the cooling fan based on charged-discharged electric power of the battery and presence or absence of a charging request that is based on an intention of a user. The controller is configured to control the operation of the cooling fan such that the battery is cooled more in a case where the charging request is present than in a case where the charging request is absent with the same charged-discharged electric power.

A system is provided for performing a predicted cooling operation for an electric vehicle (102) using a processor (122), and includes a vehicle monitoring unit (128) configured to monitor one or more vehicle characteristics related to the electric vehicle (102). The one or more vehicle characteristics include look-ahead demand information of one or more components of the electric vehicle (102). A cooling controller (126) is configured to communicate with the vehicle monitoring unit (128) and determine the look-ahead demand information based on at least one of: navigational information, thermal information, and environment information associated with the electric vehicle (102). The cooling controller (126) is configured to generate a cooling command based on the look-ahead demand information and perform the predicted cooling operation based on the cooling command by over-cooling the one or more components of the electric vehicle (102).

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.

A method for operating a vehicle that includes a DC/DC converter is described. In one example, the method includes adjusting an output voltage of the DC/DC converter after the DC/DC converter is used to crank an engine. The output voltage of the DC/DC converter may be adjusted responsive to a state of charge of an ultra-capacitor.

A vehicle includes a battery pack including a secondary battery and a first control device, a second control device provided separately from the battery pack, and a converter. The converter is configured to select a conversion formula from options depending on a situation and use the selected conversion formula to convert at least one of a first current upper limit value and a second current upper limit value into at least one of a first power upper limit value and a second power upper limit value.

A system for controlling an internal combustion engine start threshold in a parallel hybrid-electric vehicle. A predetermined conditions tracking module determines whether or not conditions of a plurality of predetermined conditions exist. Responsive to a determination that the conditions exist, a required power estimation module estimates a next acceleration required by the vehicle and a final power requirement for the next acceleration. A propulsion system control module determines if the estimated final power requirement is between a first amount of electric motor power available at a predetermined base engine start threshold and a second amount of electric motor power available at a predetermined elevated engine start threshold. If the estimated final power requirement is between the first and second amounts of power, operation of the vehicle is controlled so as to ensure that the engine start threshold is at the predetermined elevated threshold.