An appliance, as provided herein, can include a direct current load and a current sensing circuit that can be coupled to the direct current load. The current sensing circuit can be configured to collect electrical data corresponding to the direct current load. The appliance can include one or more processors that can be coupled to the current sensing circuit. The one or more processors can be configured to identify at least one attribute of the direct current load based, at least in part, on the electrical data and activate at least one operation of the direct current load or the appliance based, at least in part, on identification of the at least one attribute of the direct current load.

An appliance, as provided herein, can include a direct current load and a current sensing circuit that can be coupled to the direct current load. The current sensing circuit can be configured to collect electrical data corresponding to the direct current load. The appliance can include one or more processors that can be coupled to the current sensing circuit. The one or more processors can be configured to identify at least one attribute of the direct current load based, at least in part, on the electrical data and activate at least one operation of the direct current load or the appliance based, at least in part, on identification of the at least one attribute of the direct current load.

A drive device, having a first electric machine operable as a generator and a second electric machine operable as a motor, which are electrically connected to one another, so that the second electric machine is operable using electric energy provided by the first electric machine, wherein an energy accumulator for temporarily storing electric energy is electrically connected to the first electric machine and the second electric machine. It is provided in this case that the first electric machine and the second electric machine are electrically directly connected to one another via an intermediate circuit, wherein the energy accumulator is electrically connected to the intermediate circuit via a switch arrangement both directly and also indirectly via a voltage converter. The disclosure furthermore relates to a method for operating a drive device.

A drive device, having a first electric machine operable as a generator and a second electric machine operable as a motor, which are electrically connected to one another, so that the second electric machine is operable using electric energy provided by the first electric machine, wherein an energy accumulator for temporarily storing electric energy is electrically connected to the first electric machine and the second electric machine. It is provided in this case that the first electric machine and the second electric machine are electrically directly connected to one another via an intermediate circuit, wherein the energy accumulator is electrically connected to the intermediate circuit via a switch arrangement both directly and also indirectly via a voltage converter. The disclosure furthermore relates to a method for operating a drive device.

A drive device, having a first electric machine operable as a generator and a second electric machine operable as a motor, which are electrically connected to one another, so that the second electric machine is operable using electric energy provided by the first electric machine, wherein an energy accumulator for temporarily storing electric energy is electrically connected to the first electric machine and the second electric machine. It is provided in this case that the first electric machine and the second electric machine are electrically directly connected to one another via an intermediate circuit, wherein the energy accumulator is electrically connected to the intermediate circuit via a switch arrangement both directly and also indirectly via a voltage converter. The disclosure furthermore relates to a method for operating a drive device.

A drive device, having a first electric machine operable as a generator and a second electric machine operable as a motor, which are electrically connected to one another, so that the second electric machine is operable using electric energy provided by the first electric machine, wherein an energy accumulator for temporarily storing electric energy is electrically connected to the first electric machine and the second electric machine. It is provided in this case that the first electric machine and the second electric machine are electrically directly connected to one another via an intermediate circuit, wherein the energy accumulator is electrically connected to the intermediate circuit via a switch arrangement both directly and also indirectly via a voltage converter. The disclosure furthermore relates to a method for operating a drive device.

A method and system of controlling driving of a brushless DC electric motor (BLDC) of an electric water pump are provided. The method includes estimating an initial position of a rotor using a magnitude of a current detected in a three-phase coil wound on a stator and converting a current magnitude that reflects a rotational angle of the rotor with respect to the initial position into two direct currents based on the three-phase current. The converted direct currents are output and a rotational angle, a speed, a flux and a torque of the rotor are acquired based on values of the three-phase current, a voltage generated according to flow of the three-phase current, a predetermined coil resistance, and an inductance input. A speed of the motor is then adjusted based on the acquired rotational angle, speed, flux, and torque of the rotor.

A method and system of controlling driving of a brushless DC electric motor (BLDC) of an electric water pump are provided. The method includes estimating an initial position of a rotor using a magnitude of a current detected in a three-phase coil wound on a stator and converting a current magnitude that reflects a rotational angle of the rotor with respect to the initial position into two direct currents based on the three-phase current. The converted direct currents are output and a rotational angle, a speed, a flux and a torque of the rotor are acquired based on values of the three-phase current, a voltage generated according to flow of the three-phase current, a predetermined coil resistance, and an inductance input. A speed of the motor is then adjusted based on the acquired rotational angle, speed, flux, and torque of the rotor.

An appliance, as provided herein, can include a direct current load and a current sensing circuit that can be coupled to the direct current load. The current sensing circuit can be configured to collect electrical data corresponding to the direct current load. The appliance can include one or more processors that can be coupled to the current sensing circuit. The one or more processors can be configured to identify at least one attribute of the direct current load based, at least in part, on the electrical data and activate at least one operation of the direct current load or the appliance based, at least in part, on identification of the at least one attribute of the direct current load.

An appliance, as provided herein, can include a direct current load and a current sensing circuit that can be coupled to the direct current load. The current sensing circuit can be configured to collect electrical data corresponding to the direct current load. The appliance can include one or more processors that can be coupled to the current sensing circuit. The one or more processors can be configured to identify at least one attribute of the direct current load based, at least in part, on the electrical data and activate at least one operation of the direct current load or the appliance based, at least in part, on identification of the at least one attribute of the direct current load.