A charging system includes: a main battery storing electric power for a vehicle to travel; an inlet connected to a charging connector; a charging relay that switches a path of electric power from the inlet to the main battery; a converter that steps down a voltage of the electric power from the inlet; and an ECU that controls the charging relay and the converter. The ECU: controls the converter so that the converter starts stepping down the voltage of the electric power from the inlet to the auxiliary voltage after receiving the electric power from the inlet; supplies, before the charging relay switches to the connected state, the charging relay with the electric power from the converter as operating power for switching to the connected state; and controls the charging relay so that the charging relay switches from the disconnected state to the connected state, using the operating power.

A high voltage traction system for a vehicle includes two independently controllable power sub-systems being a powertrain power sub-system, PPS, and a vehicle power sub-system, VPS. The PPS comprising a plurality of PPS secondary power consumers and a PPS master controller being configured to arbitrate power limits among the PPS secondary power consumers by a first arbitration logic, and the VPS comprising a plurality of VPS secondary power consumers and a VPS master controller being configured to arbitrate power limits among the VPS secondary power consumers by a second arbitration logic, different to the first arbitration logic. A master interface is between the PPS master controller and the VPS master controller enabling communication exchange between the PPS and VPS including system-shared instructions of prioritization of the PPS and VPS secondary power consumers limiting the first arbitration logic and/or the second arbitration logic in a limited state.

A method and system of operating a multi-phase electric machine include operating an inverter to control the multi-phase machine. The inverter has a plurality of inverter legs including an auxiliary inverter leg. Each of the plurality of inverter legs has at least one switch device. The multi-phase machine has a plurality of phases in which each phase is controlled by a respective inverter leg of the inverter. The method and system also include determining whether a phase of the multi-phase machine is experiencing a partial phase loss, for example, by injecting a signal into the phases and analyzing the frequency response. In response to determining that a phase of the multi-phase machine is experiencing a partial phase loss, the method and system include utilizing the auxiliary inverter leg to supplement energy to the phase experiencing the partial phase loss to continue operating the multi-phase machine.

A method for controlling two serially disposed relays that switch a load with two different safety levels depending on the driving situation in a vehicle includes querying state information that includes movement state information and/or coasting operation information of the vehicle, determining a safety level of the two different safety levels depending on the driving situation, using the state information, detecting a relay of the two serially disposed relays using a balancing rule when the safety level determined in step b) represents a lower safety level of the two safety levels, switching the selected relay into a non-conductive state and keeping the further relay in a conductive state when a first request signal for switching off the load is received, and switching the selected relay into a conductive state when a second request signal for switching on the load is received.

A power supply system and a control method and control device thereof are provided. The power supply system includes a first power supply device, a heat-dissipation unit, a second power supply device, and a control device. The control device is configured to confirm whether each battery pack in the first power supply device experiences thermal runaway, and control the first power supply device to supply power to the heat-dissipation unit when no battery pack in the first power supply device experiences thermal runaway, so that the heat-dissipation unit dissipates heat from the first power supply device; and control a battery pack not experiencing thermal runaway in the first power supply device and/or the second power supply device to supply power to the heat-dissipation unit when a battery pack in the first power supply device experiences thermal runaway, so that the heat-dissipation unit dissipates heat from the first power supply device.

The disclosure relates to a hybrid-electrical drive system for an aircraft having two subsystems that are largely independent of each other. A stator winding of a common electrical machine is assigned to each of the subsystems such that both subsystems may be supplied with electrical energy from the common electrical machine. If a defect occurs in one of the subsystems, the drive system may be configured such that electrical energy from a battery of the non-defective subsystem may be transferred into the defective subsystem by utilizing the two stator winding systems.

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.

A request to move along a route is detected. The request is from a first electric vehicle. The route may include a start point and an end point. It may be determined that the first vehicle is an electric vehicle including a battery. In response to determining that the first vehicle is an electric vehicle, one or more battery parameters of the first vehicle may be retrieved. One or more electric vehicle chargers may be identified based on the start point and the end point. A subset of the electric vehicle chargers may be selected based on the battery parameters of the first vehicle. A second route is generated based on the subset of the electric vehicle chargers. The second route is generated such that the first vehicle is capable of reaching the end point. The route of the first vehicle may be replaced with the second route.

A battery management system integrated in a battery pack configured for use in electric aircraft, the system comprising a first battery management component comprising a first sensor suite configured to measure a first plurality of battery pack data. The battery management system comprising a second battery management component comprising a second sensor suite configured to measure a second plurality of battery pack data. The battery management system comprising a data storage system configured to store the first plurality of battery pack data and the second plurality of battery pack data.

An electric motor system (100), comprising: a motor unit (110) comprising: a first part (120); a second part (130) movable relative to the first part (120); a plurality of spaced activatable motor elements (140) provided on the first part (120), each activatable motor element (140) being operative when activated by application of an electric current thereto for creating relative movement between the first and second parts (120, 130); and a plurality of power electronics drive modules (150), each power electronics drive module (150) being operatively associated with a different subset of the plurality of activatable motor elements (140) and comprising a power converter (155) operative to convert direct current into a periodic current for powering the activatable motor elements (140); and a power supply arrangement (170) comprising: at least one direct current power source (180); and a plurality of n parallel direct current power supply lines (190), each of the parallel direct current power supply lines (190) being operative to transmit direct current from NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, WS, ZA, ZM, ZW.