An off-board battery charger for a vehicle may include a high-voltage connector having first, second and power supply connector ports. The first connector port connects to a vehicle controller via a first cable. The second connector port connects to a vehicle battery via a second cable. And, the power supply connector port is electrically connected with the second port and receives power via a power supply cable from a separate and external power supply.

Methods, systems, and apparatus for a multipoint safety isolation system. The multipoint isolation system includes one or more isolation triggers that connect to multiple low voltage (LV) battery components and multiple high voltage (HV) battery components. The multiple LV battery components include an LV battery. The multiple HV battery components include multiple HV batteries. The one or more isolation triggers are configured to isolate at least one of the LV battery from the multiple HV batteries or a first subset of the multiple HV batteries from a second subset of multiple HV batteries. The multipoint isolation system includes an electronic control unit (ECU) configured to activate the one or more isolation triggers.

An operation mode selection unit selects an efficiency priority mode for minimizing the overall loss in a power supply system based on a load request voltage obtained in accordance with the condition of a load and on the conditions of DC power supplies, and generates a mode selection signal in accordance with the selection result. When SOC and/or output power have/has reached power supply restriction values in any DC power supply, an operation mode modification unit generates a final mode selection instructing signal so as to modify selection of the efficiency priority mode by the mode selection signal to select an operation mode in which power distribution between the DC power supplies can be controlled.

Vehicle to project concrete, including a truck provided with a main motor to move the truck using a movement unit, a unit to project the concrete equipped with a pumping device configured to feed the concrete along a pipe, where the vehicle includes a unit to generate and feed electric energy configured to selectively feed one or more of either the movement unit of the truck, the concrete projection unit and the pumping device.

A method of operating a vehicular system includes charging, by a controller and via an electric vehicle charge station, a low-voltage battery when a module powered by the low-voltage battery is awake and an SOC of the low-voltage battery is less than a threshold; and in response to the SOC exceeding the threshold, commanding by the controller the module to enter a sleep mode for a sleep duration defined by a power usage of the module such that as the power usage changes, the sleep duration changes.

A DC link capacitor coupled to positive and negative DC busses between a high voltage DC source and an electric vehicle inverter is quickly discharged during a shutdown. An active discharge circuit connected across the link capacitor has a discharge resistor in series with a discharge switch. The discharge switch has a control terminal for selectably turning the discharge switch on and off. A disable circuit is coupled to the control terminal and is responsive to a disable command signal to turn off the discharge switch. The disable circuit turns on the discharge switch upon cessation of the disable command signal. A timing circuit powered by a voltage from the link capacitor initiates a predetermined time interval upon cessation of the disable command signal, and continuously turns off the discharge switch after the predetermined time interval while the voltage from the link capacitor remains above a threshold.

A vehicle control device operates an electric generator by an internal combustion engine and can intermittently drive an electric motor. The vehicle control device includes an electric storage unit and a control unit. The electric storage unit supplies electric power to the electric motor and can be charged by regenerative electric power from the electric generator. The control unit stops the intermittent driving mode provided that the vehicle speed is equal to or smaller than a predetermined speed and a status amount corresponding to an electric storage state of the electric storage unit is equal to or smaller than a predetermined value.

A power supply device includes a battery, an inverter, a converter, an electronic control unit. The inverter includes an upper arm having a third switching element and a lower arm having a fourth switching element. The converter includes an upper arm having a first switching element and a lower arm having a second switching element. The electronic control unit is configured to, when a state where the primary-side voltage is at least equal to the specified threshold continues for a specified time or longer, i) increase the primary-side voltage by repeatedly switching the second switching element between ON and OFF state while maintaining the first switching element to be OFF state, and apply the increased voltage as the secondary-side voltage to the inverter, and ii) convert the secondary-side voltage to the AC voltage by repeatedly switching each of the third and the fourth switching element between ON and OFF state.

An alternator voltage may be controlled based on a proportional gain scheduling in response to an engine load of an internal combustion engine and/or a state of charge (SOC) deviation for a battery based on a target SOC of the battery and an actual SOC of the battery. The alternator voltage may be a voltage less than a current battery voltage under high engine loads to enable the battery to power an accessory system and the alternator voltage may be a voltage greater than a voltage of the battery under low engine loads or engine loads less than high engine loads to enable the alternator to charge the battery.

A circuit, system, and method for a multi-phase bidirectional DC/DC power converter includes a plurality of single phase DC/DC power converter circuits coupled in electrical parallel. A converter controller includes a compensator and a saturation limit function module. The compensator is configured to generate a control signal based on a current command signal and an actual current signal. The saturation limit function module is configured to determine a saturation limit for the compensator while the compensator is in a disabled state. The converter controller is configured to disable one or more of the plurality of power converter circuits, match the saturation limit values of the compensator to current operating values when one or more of the plurality of single phase DC/DC power converter circuits is disabled, and re-enable the one or more of the plurality of power converter circuits using the matched saturation limit values to limit transient current stress as any disabled phases and compensators are re-enabled.