Disclosed is an anti-pinch control system. The anti-pinch control system includes a motor configured to generate driving force for moving a seat of a vehicle, a current measurement sensor configured to measure a current value generated in the motor, a hall sensor configured to measure a revolution per minute (RPM) of the motor, and a controller configured to derive an average of current values measured by the current measurement sensor during an edge generating time during which a specific number of edges are generated by the hall sensor, and to set, to an anti-pinch value, a value obtained by adding a rising value, corresponding to current that increases when a pinch occurs in the seat, to the average, wherein the controller derives the average for each specific RPM and updates the anti-pinch value.

A door control device includes: a speed control unit configured to perform speed control of an electric motor that drives a door; a speed detection unit configured to detect a speed of the door; and an obstruction detection unit configured to detect obstruction between the door and a door pocket, upon a value of the speed of the door detected by the speed detection unit decreasing by a first predetermined value or more with respect to a speed command value in the speed control during a door opening operation of the door.

A controller for controlling a motor of a closure and/or blind in a vehicle body is configured to determine a reference state signal comprising speed and/or current measurements, repeatedly estimate motor model parameters of the motor, determine an estimated state signal based on an input signal comprising measurements or estimates of a voltage, the estimated motor model parameters, the reference state signal and an error signal, the error signal representing a difference between the reference state signal and the estimated state signal, determine a disturbance observer signal from the error signal, compute a first derivative of the disturbance observer signal at a present moment, and reverse the motor upon determining that the first derivative of the disturbance observer signal exceeds a threshold.

A digital power supply protection circuit includes: a signal preprocessing circuit, configured to receive an overcurrent signal and a first inceptive impulse clock timing, and perform preprocessing on the overcurrent signal according to the first inceptive impulse clock timing so as to obtain a first reference signal a signal generation circuit, configured to receive the first inceptive impulse clock timing, count time duration between a rising edge of the first inceptive impulse clock timing and a rising edge of the first reference signal so as to obtain a first time duration, and upon the first time duration is greater than a second time duration, generate a first disabling signal by delaying the rising edge of the first inceptive impulse clock timing for the second time duration; and a clock timing adjustment circuit, configured to adjust the first inceptive impulse clock timing according to the first disabling signal.

An AC-AC power converter, such as a motor soft starter, includes an input connectable to an AC source with a disconnect switch, an output connectable to an AC load, and phase lines connecting the input and output to transmit power. In-line solid-state switching blocks are connected between line terminals and load terminals of the AC source and AC load, respectively, such that each phase line includes a solid-state switching block connected thereto. Free-wheeling solid-state switching blocks are connected to the load terminals at one end and together at a common connection at another end, such that each phase line includes a free-wheeling solid-state switching block connected thereto. Each of the in-line and free-wheeling solid-state switching blocks comprises a bi-directional switching block that selectively controls current and withstands voltage in both directions. The switching blocks also provide soft-starter functions, variable speed control, and integrated circuit breaker protection capability.

According to an aspect of the present invention, an electric working machine is provided. The electric working machine comprises a motor, an operation portion, a working portion, and a controller. The working portion is configured to be driven by the motor and act on a work target. The operation portion is configured to be operated by an operator. The controller is configured to control a maximum power that can be input to the motor to a first power when receiving an operation signal indicating an amount of operation to the operation portion. Further, the controller is configured to perform first switching control to switch the maximum power to a second power that is less than the first power when rotation speed of the motor becomes less than a first threshold due to a load on the working portion.

The invention relates to a device and to a method for monitoring an electrical network in a rail vehicle. The electrical network includes at least one converter, at least one drive motor, at least one first phase line for electrical connection of the at least one converter and the at least one drive motor. A magnitude of a current change of a first phase current is determined. A network error in a partial network on the machine side is detected if at least one criterion based on the current change is met. The criterion based on a current change is met when the magnitude of the current change of the first phase current is greater than a predetermined current change threshold.

A motor control unit for a brushless electric motor of a power tool, in particular a hand-held power tool, having an electronic control device having a power limiting device designed to limit the power absorption of the electric motor in order to restrict the power absorption of the electric motor to a maximum permissible maximum power value and to adjust this maximum power value during the operation of the electric motor as a function of the at least one temperature value. A corresponding power tool and a method are also provided.

The invention relates to a device and to a method for monitoring an electrical network in a rail vehicle. The electrical network includes at least one converter, at least one drive motor, at least one first phase line for electrical connection of the at least one converter and the at least one drive motor. A magnitude of a current change of a first phase current is determined. A network error in a partial network on the machine side is detected if at least one criterion based on the current change is met. The criterion based on a current change is met when the magnitude of the current change of the first phase current is greater than a predetermined current change threshold.

A method for operating an electrical circuit arrangement comprising at least one first component and one second component, wherein the components are electrically connected across a direct current sub-grid of the electrical circuit arrangement, includes switching the first component at a first operating point with a first cycle time and switching the second component at a second operating point with a second cycle time, wherein the components are connected across a communication link and a phase position is determined and set between the first cycle time and the second cycle time as a function of fault information describing at least one present alternating voltage in the direct current sub-grid.