The invention relates to a method for the external monitoring of a converter (10), the converter (10) being controlled by means of a first electronic control system (12) and the method being implemented by means of a second electronic control system (14) which is independent from the first electronic control system (12). Said method comprises detection (S1) of a current (I) received by the converter (10) and a voltage (U) received by the converter (10) by means of a current/voltage sensor device (16) which is independent from the first electronic control system (12). The invention also relates to a device for monitoring a converter (10), to a computer program product, to a machine-readable storage medium, to a drive train of a motor vehicle, and to a corresponding motor vehicle.

Systems and methods relate to electric propulsor fault detection. An exemplary system includes at least a first inverter configured to accept a direct current and produce an alternating current, a first propulsor, a first motor operatively connected with the first propulsor and powered by the alternating current, and at least a noise monitoring circuit electrically connected with the direct current and configured to detect electromagnetic noise and disengage the at least an inverter as a function of the electromagnetic noise.

A motor control system and a vehicle. The motor control system includes: a vehicle control unit, configured to obtain vehicle state data and output an instruction for cutting off motor output torque when determining an unexpected power transmission failure according to the vehicle state data; and a motor controller unit, connected to the vehicle control unit, and configured to stop outputting motor control torque in response to the instruction for cutting off motor output torque.

An active discharge circuit for electric vehicle inverter, the active discharge circuit intended to be connected in parallel with a DC link capacitor connected between positive and negative lines of a DC power link, wherein the circuit comprises a dissipative current source, a switch connected in series with the current source between the DC lines, and a controller connected to the switch and arranged to apply an activation signal in dependence of a control signal, the activation signal placing the switch in a conducting state, wherein the current source is configured to draw a discharge current and dissipate any energy stored in the DC link capacitor when the switch is in the conducting state. As long as the switch is closed by the activation signal, the current source will draw a constant current and dissipate power, and the voltage across the DC link capacitor will decrease linearly.

A vehicle electrical system is equipped with a DC charging connection, a rechargeable battery, a first DC-DC converter and an electrical drive. The first DC-DC converter has a first side. This is connected to a connecting point via a first switch. The first DC-DC converter has a second side to which the electrical drive is connected. The second side is connected to the rechargeable battery via a second switch and via a connecting point or is connected to the rechargeable battery directly. The vehicle electrical system has a second DC-DC converter. This is connected to one side of the first switch.

The disclosure relates to an inverter device, including: an inverter circuit including a plurality of switching elements and a capacitor; an active discharge circuit including a first discharge resistor and a discharge switch connected in series, and connected between a positive electrode and a negative electrode of the capacitor; and a control circuit including a controller respectively connected to the switching elements and the discharge switch. The controller controls the switching elements and the discharge switch. The controller turns on the discharge switch to discharge the capacitor when the controller receives a discharge command from outside the inverter device and an electric motor is rotating.

Disclosed is a DC-DC converter of a power conversion system. comprising first to fourth switches; fifth to eighth switches; a first capacitor connected to the first and second switches; a second capacitor connected to the fifth and sixth switches; a third capacitor connected to the third and fourth switches; a fourth capacitor connected to the seventh and eighth switches; a first inductor connected to a first node between the first and second switches, and a second node between the fifth and sixth switches; and a second inductor connected to a third node between the third and fourth switches, and a fourth node between the seventh and eighth switches, wherein the first and second inductors are coupled inductors, and a fifth node between the second and third switches, and a sixth node between the sixth and seventh switches are electrically equivalent.

A system for an inverter includes a first integrated circuit configured to: provide power to a first set of switches, and selectively control the first set of switches and a second set of switches; a second integrated circuit configured to provide power to the second set of switches; and an electric motor being connected to the first set of switches and the second set of switches, wherein, the second integrated circuit is further configured to: in response to an a fault detected in the first integrated circuit, selectively control the first set of switches and the second set of switches, and, in response to at least one voltage value corresponding to a voltage of the first set of switches being outside of a threshold, performing a safe state operation.

A vehicle includes an ADK that creates a driving plan, a VP that carries out vehicle control in accordance with various commands from the ADK, and a vehicle control interface that interfaces between the VP and the ADK. A power supply structure for the ADK is provided independently of a power supply structure for the VP.

An electric-power conversion apparatus has a heat sink in which one side portion out of a pair of side portions that extend in a direction perpendicular to the axial direction of a motor is formed shorter than the other side portion thereof; a lower case to which the heat sink is fixed is fastened to a driving apparatus through the intermediary of fixing portions at the both end portions of each of the pair of side portions of the heat sink or at respective positions in the vicinity of the both end portions of each of the pair of side portions of the heat sink; at least one of a reactor and capacitors is disproportionately disposed to be closer to said one side portion than to said the other side portion of the heat sink.