An electronic control module is provided. The electronic control module is operably connected to a power supply for providing power to a motor. The electronic control module includes an input device, a processor coupled to the input device, and first and second current supply lines. The processor is configured to generate a command signal in response to an input supplied by the input device and transmit the command signal to the motor. The command signal controls an operating point of the motor. The first and second current supply lines are operably connectable to the motor and the processor. At least one of the current supply lines, the input device and the processor are adapted to utilize the current supply lines both to transmit power to the motor and to transmit the command signal to the motor over the current supply lines.

An apparatus includes a control circuit that includes a configuration register and configured to receive a configuration setting across an external bus. The configuration setting encodes a first voltage state for the apparatus. The control circuit includes an input configured to be coupled to an external electrical device. The control circuit is configured to determine a value of the external device that maps to a second voltage state for the apparatus. The control logic is configured to transition the apparatus to a safe mode upon a determination that the first voltage state does not match the second voltage state.

An apparatus includes a control circuit that includes a configuration register and configured to receive a configuration setting across an external bus. The configuration setting encodes a first voltage state for the apparatus. The control circuit includes an input configured to be coupled to an external electrical device. The control circuit is configured to determine a value of the external device that maps to a second voltage state for the apparatus. The control logic is configured to transition the apparatus to a safe mode upon a determination that the first voltage state does not match the second voltage state.

When electric power supply is started, an initial driving operation is performed to switch over a power supply phase of a motor in open-loop control. Initial learning processing is performed to learn a phase deviation correction value for the power supply phase relative to a count value of a pulse signal of an encoder. As a restraint caused by a shape of a detent mechanism, the motor need be rotationally driven so that a detent lever does not move in a negative direction beyond a bottom position of a P-range in the initial driving operation. In a case of performing the initial learning processing in the P-range in consideration of this restraint, the initial learning processing is performed by setting a rotation direction of the motor.

When electric power supply is started, an initial driving operation is performed to switch over a power supply phase of a motor in open-loop control. Initial learning processing is performed to learn a phase deviation correction value for the power supply phase relative to a count value of a pulse signal of an encoder. As a restraint caused by a shape of a detent mechanism, the motor need be rotationally driven so that a detent lever does not move in a negative direction beyond a bottom position of a P-range in the initial driving operation. In a case of performing the initial learning processing in the P-range in consideration of this restraint, the initial learning processing is performed by setting a rotation direction of the motor.

An electronic switch control method is disclosed. The method comprises receiving the current working parameters of the electronic switch, then reading duty cycle parameters matching with the current working parameters; conducting a linear calculation with the duty cycle parameters and the working parameters to obtain a new duty cycle; adjusting the current control signal to obtain a PWM signal having the new duty cycle; and controlling the rotation speed of the motor in a load with the PWM signal. By reducing the volume of an electronic switch and achieving a long low-speed travel, the disclosure enables the user to work at an accurate working point with an electronic device.

A method for generating a challenge-response pair in an electric machine as a basis for an identification or authentication is described, the electric machine having a stator and a rotor, a first alternating voltage between two points of a first defined point pair of the electric machine being applied as a challenge, which causes an induction in the electric machine, a variable dependent on the caused induction being determined as a response. The first alternating voltage has a frequency which is higher than the working frequency of the electric machine.

A method for generating a challenge-response pair in an electric machine as a basis for an identification or authentication is described, the electric machine having a stator and a rotor, a first alternating voltage between two points of a first defined point pair of the electric machine being applied as a challenge, which causes an induction in the electric machine, a variable dependent on the caused induction being determined as a response. The first alternating voltage has a frequency which is higher than the working frequency of the electric machine.

The present disclosure describes a system for providing an assistive driving force to a wheelchair. The system comprises a power assist system which includes a motion sensing system that is configured to detect the motion of the power assist system, and hence of the wheelchair, and a power assist drive system that is configured to provide an assistive drive force. The system also comprises a sensor, such as may be embedded in a wearable wristband, that is configured to detect the motion of a user's hand and that is in communication with the power assist system. The system may be configured to determine whether the wheelchair is being manually pushed based at least in part on the user motion, and to activate an assistive drive force in response to a manual push. The system may also be configured to determine whether the wheelchair is being manually braked based at least in part on the user motion, and to deactivate an assistive drive force in response to a manual brake.

The present disclosure describes a system for providing an assistive driving force to a wheelchair. The system comprises a power assist system which includes a motion sensing system that is configured to detect the motion of the power assist system, and hence of the wheelchair, and a power assist drive system that is configured to provide an assistive drive force. The system also comprises a sensor, such as may be embedded in a wearable wristband, that is configured to detect the motion of a user's hand and that is in communication with the power assist system. The system may be configured to determine whether the wheelchair is being manually pushed based at least in part on the user motion, and to activate an assistive drive force in response to a manual push. The system may also be configured to determine whether the wheelchair is being manually braked based at least in part on the user motion, and to deactivate an assistive drive force in response to a manual brake.