An intermediate circuit adaptation device for a vehicle. The intermediate circuit adaptation device includes a DC intermediate circuit with at least two phases and a control unit. The control unit is configured to change the intermediate circuit voltage and/or the number of phases of the intermediate circuit on the basis of the current operating point.

Disclosed is a charger for an electric vehicle suitable for commercial installation having a main body, an electrical usage meter on the main body configured to meter three-phase power, a main three-phase circuit breaker, a transformer in the main body, the transformer configured to step-up the voltage of the three-phase power, and a main single-phase circuit breaker.

A system for mitigating charging failure for an electric aircraft including a charging connector, a sensor, a charger, and a controller. The charging connector comprising at least a charging pin and configured to mate with a corresponding charging port on an electric aircraft. The sensor communicatively connected to the charging connector and configured to detect a charging datum. The charger electrically connected to the charging connector and comprising a power source electrically connected to the charging connector. The controller communicatively connected to the sensor and configured to receive a charging datum from the sensor, detect a charging failure as a function of the charging datum, and initiate a mitigating response in response to detecting a charging failure.

Systems include a prime mover that generates power for a mobile vehicle; a power converter that receives a portion of the generated power, and provides configured electrical power to an aftertreatment heater device configured to selectively heat an exhaust fluid of the prime mover; at least one aftertreatment component positioned downstream of the aftertreatment heater device, and configured to treat a constituent of the exhaust fluid; and a controller including an operating conditions circuit structured to interpret an operating parameter of one of the power converter, the aftertreatment heater device, the prime mover, or the exhaust fluid; a heater management circuit that determines a heating power value in response to the operating parameter; and a heater control circuit that provides a heating command in response to the heating power value; and wherein the power converter is responsive to the heating command to heat the exhaust fluid of the prime mover.

A motor control device includes a motor drive circuit including an upper arm and a lower arm, an arithmetic processor to control the motor drive circuit, an alternative circuit that can operate as a substitute to replace the arithmetic processor, and a mode switch to switch a control mode between a first control mode, in which the arithmetic processor controls the motor drive circuit, and a second control mode, in which the alternative circuit controls the motor drive circuit, based on a state of the arithmetic processor. The mode switch switches the control mode from the first control mode to the second control mode when a state of the arithmetic processor changes from a normal state to an abnormal state.

A power system for a vehicle includes: a high voltage battery; a low voltage DC-DC converter configured to step down a voltage of the high voltage battery and to output the stepped down voltage; a low voltage battery charged by an output current of the low voltage DC-DC converter, where the low voltage battery includes a first cell group including a plurality of battery cells, and a second cell group connected in parallel with the first cell group and including a plurality of battery cells; and a plurality of switches configured to electrically connect or disconnect the first cell group or the second cell group with the low voltage DC-DC converter, electrical loads configured to receive power from at least one of the low voltage DC-DC converter and the low voltage battery; and a controller configured to control opening or closing of the plurality of switches.

A high-voltage relay system for a vehicle is provided. The system includes a relay, a first contact part positioned between a battery and a power converter, a voltage application unit, and a second contact part positioned between the voltage application unit and the ground. A first resistor is connected, at a first end thereof, in series to a second end of the second contact part and connected, at a second end thereof, to the ground. A controller operates the relay in response to an ON/OFF control signal to short-circuit or open the contacts at both ends of the first contact part or the contacts at both ends of the second and determines whether the relay fails based on the type of the ON/OFF control signal and the voltage value between both ends of the first resistor.

A relay diagnosis apparatus includes a first voltage detection circuit to generate first and second diagnosis voltages between positive and negative electrode terminals of a battery assembly and a chassis, respectively; and a controller to determine first and second insulation resistances between the positive and negative electrode terminals and the chassis, respectively, based on the first and second diagnosis voltages at first and second time points while respective relays are controlled into an off-state. The controller determines third and fourth insulation resistances between the positive and negative electrode terminals and the chassis, respectively, based on the first and second diagnosis voltages at third and fourth time points while the first and second relays are controlled into an on-state. The controller detects relay faults based on the insulation resistances.

A method and device for controlling a DCDC converter, used for a hybrid electric vehicle and relating to the technical field of vehicle control. The method comprises: according to an output end current limit value and an actual voltage value, acquiring a first preset value corresponding to an input end power; according to the maximum discharge power of a high-voltage battery and the actual discharge power of an electric motor, acquiring a second preset value corresponding to the input end power; and determining the minimum value in the first preset value and the second preset value as an input end target power limit value. Multiple combination working conditions of sufficient or insufficient power sources at the input end are considered.

A battery and capacitor assembly for a hybrid vehicle includes a plurality of battery cells, a plurality of capacitor cells, a cooling plate, a pair of end brackets, and a housing. The plurality of capacitor cells are arranged adjacent to the plurality of battery cells such that the plurality of battery cells and the plurality of capacitor cells form a cell stack. The pair of end brackets are disposed at opposite ends of the cell stack and are attached to the cooling plate. The pair of end brackets compress the plurality of battery cells and the plurality of capacitor cells. The housing is attached to the cooling plate and encloses the cell stack and the pair of end brackets.