Patent ID: 6943515

Claim:
A controller of an automotive power door which is powered by an electric drive motor to move in opening and closing directions, the controller comprising: a pulse encoder that outputs series of pulses, each pulse having a pulse duration sized to correspond to a rotation speed of the motor, the number of the pulses corresponding to the number of revolution of the motor; and a door jamming detecting section that detects a jamming of the door, the door jamming detecting section being configured to carry out: calculating a total duration time of a given number of the series pulses outputted from the pulse encoder; detecting a given condition wherein the total duration time is greater than a threshold value; and making a judgment of the door jamming when the given condition is kept for a given time, wherein the given time is determined based on the total duration time and the given time is derived by adding, to a predetermined value, a difference between the total duration time and the threshold value.