The pinch detector is suitable to detect a pinch at a closing member actuated by a motor equipped with a measuring circuit to measure a motor current. It includes a first portion that, when the motor starts closing the member, obtains a reference value of the motor current measured at the end of a blind time period having a predetermined duration from the moment the motor starts to close the member; a second portion that compares current values of the measured motor current to a threshold value depending on said reference value, during a detection time period, following the blind time period and preceding a steady state time period of the motor, in order to detect a pinch at the closing member based on a comparison result.

A sliding door driving device includes: a power source; a motor that outputs power to open and close the door; a motor driving circuit that connects the power source and the motor to each other; and a motor control device that controls the motor driving circuit. The motor control device includes an inverter that converts DC power supplied from the power source into AC power, and a shunt resistor disposed between the power source and the inverter. The position detection unit of the motor control device obtains the rotation angle of the motor based on the output of the shunt resistor.

A motor control system configured to detect a pinch condition of a structure actuated by a motor includes a pinch detection module configured to receive a current signal indicative of a motor current, determine a rate of change of current based on the current signal, and generate a pinch signal indicative of the pinch condition in response to either one of the motor current being greater than a current threshold and the rate of change of current being greater than a rate of change threshold. The motor control system further includes a position control module configured to control the motor to actuate the structure in response to an input and at least one of stop and reverse the motor in response to the pinch signal.

A method of detecting an obstruction of a passenger door on a public transit vehicle comprising the steps of: recording the profile of the actuator (motor) current vs. door position following initiation of an opening or closing of the door; based on the recorded profile of actuator current vs. door position acceptable increase in motor current for one or more discrete positions following initiation of opening or closing the door indicative of no obstruction; and comparing an instant current profile to the acceptable increase and indicating a potential door obstruction if the current exceeds the acceptable increase.

A power swing door actuator for moving a passenger swing door relative to a body portion of a motor vehicle. The power swing door actuator includes a housing rigidly fixed to the swing door, a motor mounted to the housing, a connector link having a first end pivotably coupled to the vehicle body portion and a second end pivotably coupled to a drive nut of a spindle drive mechanism. A leadscrew of the spindle drive mechanism is rotatably driven by the motor for causing relative translational movement between the drive nut and the leadscrew which, in turn, results in pivoting movement of the connector link while the vehicle door swings between open and closed positions in response to selective actuation of the motor.

An opening-closing member control device includes a motor that opens and closes an opening-closing member of a vehicle, and a control unit configured to stop the motor when determining that a foreign object has been entrapped by the opening-closing member and reverse the motor when a delay time elapses after stopping the motor. When the control unit determines that entrapment has occurred upon operation of a remote operation switch that is separated from the vehicle, the control unit reverses the motor after the delay time that is shorter than when determining that entrapment has occurred upon operation of a vehicle operation switch that is arranged in the vehicle.

An open-roof assembly for a vehicle roof comprises a moveably arranged closure member, a drive assembly for moving the closure member and a control unit operatively coupled to the drive assembly. The control unit comprises a pinch detection unit for detecting a pinch of the closure member with an object. The pinch detection unit comprises a first pinch detection system and a second pinch detection system. The first pinch detection system is configured to detect a pinch with a soft object and the second pinch detection system is configured to detect a pinch with a hard object. The pinch detection unit is configured to adapt a configuration setting of the first pinch detection system upon detection of a pinch with a hard object by the second pinch detection unit to configure the first pinch detection system to detect a pinch with said hard object.

An air control system with an integrated diagnostic device for a motor vehicle includes: a carrier structure, an air output opening, a closing element arrangement with one or several closing elements adjustably placed on the carrier structure, a power unit which is constructed to adjust the closing element arrangement in an adjustment movement, a diagnostic device to acquire information about the condition of the closing element arrangement, an interface to convey data at least from the diagnostic device to another device, wherein for at least one closing element of the closing element arrangement the air control system also includes a resistance element associated with said closing element which is constructed to temporarily change the torque or force required in a predetermined phase of the adjustment movement for the adjustment of the closing element arrangement, wherein the diagnostic device acquires at least one operating parameter of the power unit as information about the status of the closing element arrangement.

A door assembly includes a first door skin and a second door skin spaced apart from the first door skin. The assembly also includes an energy sensor generating an energy signature signal and a memory storing a door component operating signature. A controller is coupled to the accelerometer and forms a comparison of the energy signature signal to the door component operating signature and generates a door component operation status signal in response to the comparison.

The present invention provides an anti-pinch detection method and system comprising: determining a first current change rate according to a current collected in a present period and a previous period; determining a second current change rate according to the current collected in the present period and a target period, there being N periods between the target period and present period; detecting whether a closure component encounters an obstacle according to the second current change rate. If yes, determining the stiffness of the obstacle according to the first current change rate; determining a real-time obstacle compression distance according to a contact position zero point and a motor position collected in real time; and determining a real-time anti-pinch force according to the stiffness of the obstacle and the real-time obstacle compression distance, and controlling a motor to reverse when the real-time anti-pinch force is greater than a preset anti-pinch detection threshold.