An on-board charging management apparatus includes a vehicle-side earth line connected with an external-side earth line of an external power unit; a vehicle-side signal line connected with an external-side signal line of the external power unit; and a detection signal line configured to connect the vehicle-side signal line and the vehicle-side earth line. Presence or absence of a disconnection of the external-side earth line and the vehicle-side earth line is determined based on an electric current value or a voltage value of the detection signal line, when the external power unit is in a connected state. As a consequence, the on-board charging management apparatus can detect a disconnection of the earth line at the time of charging an on-board electric storage device.

An on-board charging management apparatus includes a vehicle-side earth line connected with an external-side earth line of an external power unit; a vehicle-side signal line connected with an external-side signal line of the external power unit; and a detection signal line configured to connect the vehicle-side signal line and the vehicle-side earth line. Presence or absence of a disconnection of the external-side earth line and the vehicle-side earth line is determined based on an electric current value or a voltage value of the detection signal line, when the external power unit is in a connected state. As a consequence, the on-board charging management apparatus can detect a disconnection of the earth line at the time of charging an on-board electric storage device.

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.

A device for emergency disconnection of a high voltage electrical connection between a power source and a high voltage component of an electric aircraft in response to a crash. The device includes a controller, where the controller is configured to receive a sensor datum from a sensor of device, to determine a crash element between and initiate a disconnection protocol as a function of the crash element.

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.

The present invention concerns a method of thermal management of a transmission of an axle (4) of an electrical vehicle and a circuit used for the method. The circuit comprises a coolant pump (1), one or more on-board units, a three way valve (5) and the axle (4), which axle (4) comprises a transmission. Coolant of a cooling system of the vehicle is made to pass the on-board units to pick up heat losses. The on-board units may be power electronics (2), an electrical machine (3), a battery and/or an on-board charger.

A vehicle includes: an engine; an exhaust pipe through which exhaust gas from the engine is released; a battery pack located near the exhaust pipe; and an ECU that executes, during limp-home traveling of the vehicle, control in which the battery pack is not charged and discharged, and output suppression control in which output of the engine is suppressed. In the output suppression control, when the catalyst temperature is above a threshold value, the ECU suppresses the output of the engine, as compared to when the catalyst temperature is below the threshold value, while maintaining a state in which the engine can output power.

Provided are a battery state measuring method and battery management system, which predict a time point when charging capacity of a battery is to be relatively abruptly reduced. The battery state measuring method includes: monitoring a change of at least one precursor related to the charging capacity of the battery with respect to a number of charging cycles undergone by the battery; and predicting that an abrupt reduction in the charging capacity of the battery is imminent when the change of the at least one precursor follows at least one pre-configured pattern of the battery that has undergone a critical number of charging cycles.

A power distribution system is provided that ensures that a car is able to operate safely in an autonomous mode. The system includes multiple power rails, including a pair of safety critical power rails. Associated with each safety critical power rail is a safety switch, vehicle sensors (e.g., vehicle location and obstacle sensors), vehicle actuators (e.g., braking and steering actuators) and an autonomous control unit. If a fault is detected during vehicle initialization or general operation, the safety switch which detected the fault opens and that particular power rail is decoupled from the general purpose power rail as well as the remaining safety critical power rail. The remaining safety critical power rail is then able to provide power to a sufficient number of sensors, actuators and controllers to allow the car to safely and autonomously complete an emergency stop on the side of the road.

A controller of a drive system is configured to, when a power switch is changed from an on state to an off state in a situation in which it has been diagnosed that an abnormality is occurring in a motor generator, execute a starting check process of checking a drive circuit and an engine starting process of starting an engine. The starting check process includes a voltage reduction process of driving a DC-DC converter until a capacitor voltage becomes lower than or equal to a prescribed voltage. The controller is configured to, on condition that the controller determines through a voltage reduction determination process that the capacitor voltage is reduced as compared to the capacitor voltage at an end of the voltage reduction process, execute the engine starting process.