Module-based energy systems are provided having multiple converter-source modules. The converter-source modules can each include an energy source and a converter. The systems can further include control circuitry for the modules. The modules can be arranged in various ways to provide single phase AC, multi-phase AC, and/or DC outputs. Each module can be independently monitored and controlled.

Methods and systems are disclosed for customizing an advanced driver assistance system (ADAS) of a vehicle. In one example, a system for an electric vehicle comprises a current sensor arranged on a power line coupling a battery of the electric vehicle with an inverter of the electric vehicle; a directional speed sensor arranged at a motor of the electric vehicle; and a high voltage direct current contactor arranged on the power line coupling the battery of the electric vehicle with the inverter, upstream of the current sensor, the high voltage direct current contactor configured to allow a current to flow from the battery to the inverter when the high voltage direct current contactor is in a closed position, and to not allow the current to flow when the high voltage direct current contactor is in an open position.

A system and method for operating a fuel-cell system, which is attached to at least one further component via a cooling and/or lubricating circuit. A water-based, oil-free coolant and lubricant is used, and a flushing procedure for the fuel cell is initiated when a contamination of the fuel cell by the water-based, oil-free coolant and lubricant is detected.

A power module (10) for operating an electric vehicle drive includes a current input configured for supplying an input current. The current input includes multiple contact elements (182, 184). Multiple circuit-breakers (142, 144) are configured for generating an output current based on the supplied input current. A current output (192) is configured for outputting the output current at a consumer. A substrate (12) includes a metal layer (122-130) and an insulating layer (121) connected to the metal layer (122-130). The multiple circuit-breakers (142, 144) are arranged on the metal layer (122-130). The multiple contact elements (182, 184) are also arranged on the metal layer (122-130) such that the multiple contact elements (182, 184) extend perpendicular to a surface of the substrate (12).

A vehicle control device according to one embodiment includes an inverter converting a DC power to a three-phase AC power and supplying the three-phase AC power to a motor driving a vehicle. A detector detects a current value between the inverter and the motor. A controller PWM-controls the inverter based on a current value detected by the detector, a speed command signal, and a rotor frequency of the motor. The controller determines occurrence of a malfunction when a PWM modulation rate is equal to or higher than a predetermined value and the rotor frequency is equal to or lower than a predetermined value.

A vehicle drive unit includes an internal combustion engine (21), an electromotive unit (23) having a first electric motor (31) and a second electric motor (33), an inverter (27) disposed above the electromotive unit, a first harness (41) that electrically connects the inverter and a first terminal block (61) of the first electric motor, and a second harness (42) that electrically connects the inverter and a second terminal block (62) of the second electric motor. The first electric motor and the second electric motor are disposed in a vehicle front-rear direction. Of the first electric motor and the second electric motor, one electric motor is disposed on the front side in the front-rear direction, and the other electric motor is disposed on the rear side in the front-rear direction. The other electric motor is offset upward in the up-down direction with respect to the one electric motor. The electromotive unit has a predetermined space (A) formed: in a region above the one electric motor and in rear of the front end of the one electric motor; and in a region in front of the other motor and below the upper end of the other electric motor. The first terminal block and the second terminal block are located in the predetermined space.

The invention is based on a motor apparatus, in particular on an EC motor apparatus, comprising at least one stator (12a; 12b; 12c) which has at least twelve coils (14a, 14a′, 16a, 16a′, 18a, 18a′, 20a, 20d, 22a, 22b′, 24a, 24a′; 14b, 14b′, 16b, 6b′, 18b, 18b′, 20b, 20b′, 22b, 22b′, 24b, 24b′; 14c, 16c, 18c, 20c, 22c, 24c, 142c, 44c, 146c, 148c, 150c, 152c), and comprising at least one power supply unit (26a; 26b; 26c). It is proposed that coils (14a, 14a′, 16a, 16a′, 18a, 18a′, 20a, 20a′, 22a, 22a′, 24a, 24a′; 14b, 4b′, 16b, 16b′, 18b, 18W, 20b, 20b′, 22b, 22b′, 24b, 24b′; 14c, 16c, 18c, 20c, 22c, 24c, 42c, 144c, 146c, 148c, 150c, 152c), which directly follow one another in the circumferential direction (36a; 36b; 36c), of the at least one stator (12a; 12b; 12c) are connected to differing phases of the power supply unit (26a; 26b; 26c) in at least one operating state.

Embodiments of the present invention provide a method of controlling a high-voltage circuit (15) of a vehicle, comprising detecting (310) a fault associated with the high-voltage circuit, reducing (320) a voltage of the high-voltage circuit (15) in dependence on detecting the fault, receiving (330) a torque request and, in dependence thereon, increasing (340) the voltage of the high-voltage circuit (15).

A power converter for a railway vehicle includes a power converter body configured to be installed on the railway vehicle; a first radiating fin unit arranged on a front side on the power converter body for dissipating heat from the power converter body; a second radiating fin unit arranged on the power converter body on a rear side for dissipating heat from the power converter body; and an air duct that takes in air from a region other than regions in which the first and second radiating fin units are disposed while the railway vehicle is moving, the air duct extending into a fin separation space that is defined as a space between the first radiating fin unit and the second radiating fin unit so as to guide air that is taken in into the fin separation space.

An illustrative dual power inverter module includes a detection circuit configured to detect loss of low voltage DC electrical power supplied to a controller for a first power inverter and a second power inverter of a drive unit for an electric vehicle. A first backup power circuit is associated with the first power inverter and a second backup power circuit is associated with the second power inverter. Each backup power circuit is configured to convert high voltage DC electrical power to low voltage DC electrical power responsive to detection of loss of low voltage DC electrical power supplied to the controller. Three-phase short circuitry is configured to apply a same fault action to the first power inverter and the second power inverter responsive to detection of loss of low voltage DC electrical power supplied to the controller, wherein the same fault action includes applying equalized torque to each axle operatively coupled to the drive unit.