A smart electronic power steering system and method for a retrofitted electric vehicle are provided. In one embodiment, an electronic power steering system comprises a relief valve; a pump in communication with the relief valve; a motor configured to operate the pump; a motor controller configured to control the motor; and a processor. The processor is configured to receive a desired maximum pressure value from a retrofitted electric vehicle and configure the relief valve or motor controller to provide relief at the desired maximum pressure value; and receive a desired flow rate from the retrofitted electric vehicle and configure the motor controller to operate the motor at a speed to achieve the desired flow rate. Other embodiments are provided.

Systems, devices, and methods for providing switch housing remote controls for ceiling fans. The remote receiver in the ceiling fan housing uses existing capacitors installed in the ceiling fan and shares those capacitors with existing mechanical pull chains for the ceiling fan, which eliminates the need for separate capacitors in the remote receiver.

Parameters relating to rotation of a motor (2) measured every constant time are acquired and the moving average of each constant interval of the parameters is calculated. The calculated moving averages are input to a training model trained so as to output a temperature of magnets attached to a rotor (7) of the motor (2) when the moving averages of the parameters relating to rotation of the motor (2) are input, and an estimated value of the magnet temperature output from the model is acquired. Next, the acquired estimated value of the magnet temperature is output.

Circuitry for efficiently operating a three-phase AC motor having three coils, each of which implementing a corresponding phase, comprising four half-bridge inverters having a common bus voltage, for controlling the level and the phase of input voltages supplied to the coils and a control circuitry for operating the four half bridges. A first coil of the motor is being connected between a first half-bridge inverter and a second half-bridge inverter and generating by the control circuitry a desired voltage across the first coil using the first and second half-bridge inverters; A second coil of the motor is being connected between the second half-bridge inverter and a third half-bridge inverter and generating by the control circuitry a desired voltage across the second coil using the second and third half-bridge inverters; A third coil of the motor is being connected between the third half-bridge inverter and a fourth half-bridge inverter and generating by the control circuitry desired voltage across the third coil using the third and fourth half-bridge inverters. The control circuitry, controls the phase of the voltage generated by the fourth half-bridge inverter to be equal to the phase of the voltage generated by the first half-bridge inverter.

A method for detecting an obstacle opposing the movement of a screen in a home automation closure or sun protection system includes an electromechanical actuator driving movement of the screen. The electromechanical actuator includes a torque support, a housing, an output shaft, and an electric motor including a stator and a rotor. The system includes a winding shaft rotating the screen and a connecting accessory between the electromechanical actuator's output shaft and the winding shaft. The method includes: determining an angular displacement value of the rotor with respect to the stator; determining angular displacement of the winding shaft relative to the housing or torque support of the electromechanical actuator; determining angular deformation of the kinematic chain between the electric motor and the winding shaft by comparing these two angular displacements; and determining the presence of an obstacle to screen movement from an angular deformation exceeding a predefined value.

Disclosed herein is a system (20) for providing N bipolar AC phase voltages U.sub.Vj, with j=1 . . . N, said system (20) comprising N modular energy storage direct converter systems (MESDCS) (22) and a control system (20), wherein the first ends (24) of each MESDCS (22) are connected to a common floating connection point (28), and wherein the j-th MESDCS (22) is controllable to output at its second end (26) a star voltage Us.sub.j with respect to the floating connection point (28), with j=1, . . . , N, wherein said system (20) is configured to provide each of said phase voltages Uv.sub.j as voltage differences between two of said star voltages, such that Uv.sub.j=Us.sub.j+1−Us.sub.j, or Uv.sub.j=Us.sub.j−Us.sub.j+1 for each j between 1 and N−1, and Uv.sub.N=Us.sub.1−Us.sub.N, or Uv.sub.N=Us.sub.N−Us.sub.1, respectively, wherein said control system (30) is configured to control each MESDCS (22) to output a corresponding unipolar star voltage Us.sub.j that can be decomposed into a periodic bipolar AC function P.sub.j(t) and a unipolar offset U.sub.off(t) that is common to each star voltage Us.sub.j, such that Us.sub.j(t)=P.sub.j(t)+U.sub.off(t), wherein the absolute value of said common unipolar offset U.sub.off(t) is at all times t sufficiently high that Us.sub.j (t) is unipolar,

wherein the periodic bipolar AC functions P.sub.j(t) associated with different star voltages Us.sub.j are phase-shifted copies of each other such that for each integers i, j chosen from [1, . . . , N] and k chosen from [1, . . . , N−1], P.sub.i(t)=P.sub.j(t+k.Math.T/N), wherein T is the period of said periodic bipolar AC function P.sub.j(t), wherein in particular, P.sub.i(t)=P.sub.j(t+(i−j).Math.T/N).

Disclosed herein is a system (20) for providing N bipolar AC phase voltages U.sub.Vj, with j=1 . . . N, said system (20) comprising N modular energy storage direct converter systems (MESDCS) (22) and a control system (20), wherein the first ends (24) of each MESDCS (22) are connected to a common floating connection point (28), and wherein the j-th MESDCS (22) is controllable to output at its second end (26) a star voltage Us.sub.j with respect to the floating connection point (28), with j=1, . . . , N, wherein said system (20) is configured to provide each of said phase voltages Uv.sub.j as voltage differences between two of said star voltages, such that Uv.sub.j=Us.sub.j+1−Us.sub.j, or Uv.sub.j=Us.sub.j−Us.sub.j+1 for each j between 1 and N−1, and Uv.sub.N=Us.sub.1−Us.sub.N, or Uv.sub.N=Us.sub.N−Us.sub.1, respectively, wherein said control system (30) is configured to control each MESDCS (22) to output a corresponding unipolar star voltage Us.sub.j that can be decomposed into a periodic bipolar AC function P.sub.j(t) and a unipolar offset U.sub.off(t) that is common to each star voltage Us.sub.j, such that Us.sub.j(t)=P.sub.j(t)+U.sub.off(t), wherein the absolute value of said common unipolar offset U.sub.off(t) is at all times t sufficiently high that Us.sub.j (t) is unipolar,

wherein the periodic bipolar AC functions P.sub.j(t) associated with different star voltages Us.sub.j are phase-shifted copies of each other such that for each integers i, j chosen from [1, . . . , N] and k chosen from [1, . . . , N−1], P.sub.i(t)=P.sub.j(t+k.Math.T/N), wherein T is the period of said periodic bipolar AC function P.sub.j(t), wherein in particular, P.sub.i(t)=P.sub.j(t+(i−j).Math.T/N).

In the work device that has a self-holding circuit (61) maintaining power supply from a power supply circuit (12) by output from a microcomputer (40) and has a structure in which stopping output to the self-holding circuit (61) causes interruption of power supply from the power supply circuit (12) to the microcomputer (40), the firmware of the microcomputer (40) is made to be rewritable and a power holding unit (condenser C1) for temporarily continuing power supply to the microcomputer (40) is provided, thereby realizing a so-called “off-delay timer function” for restarting the microcomputer (40). This configuration enables maintenance of power to the microcomputer (40) after update of the firmware even in a work device that cannot be restarted once power has been turned off unless trigger operation is performed, thereby enabling automatic restart of the microcomputer 40 after resetting is enabled.

An electrical machine comprising: at least one stator, at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, an integrated electrical differential coupled to at least one of the rotors, the at least one integrated electrical differential permitting the at least one rotor to output at least two rotational outputs to corresponding shafts, wherein the at least two rotational outputs are able to move the shafts at different rotational velocities to one another. The electrical machine is configured to fit into a housing, and that can be retrofitted into a conventional vehicle by replacing the mechanical differential.

An electrical machine comprising: at least one stator, at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, an integrated electrical differential coupled to at least one of the rotors, the at least one integrated electrical differential permitting the at least one rotor to output at least two rotational outputs to corresponding shafts, wherein the at least two rotational outputs are able to move the shafts at different rotational velocities to one another. The electrical machine is configured to fit into a housing, and that can be retrofitted into a conventional vehicle by replacing the mechanical differential.