Controller of automotive power door
AssigneeNissan Motor Co., Ltd.
InventorHitoshi Kidokoro
Life of this patent
Estimating the term…
Abstract
An electric drive motor drives a door to move in an open/close direction. A pulse encoder outputs a series of pulses. Each pulse has a pulse duration sized to correspond to a rotation speed of the motor. The number of the pulses corresponds to the number of revolution of the motor. A door jamming detecting device for detecting a jamming of the door is configured to carry out calculating a total duration time (Tn) of a given number (n) of the series pulses outputted from the pulse encoder; detecting a given condition wherein the total duration time (Tn) is greater than a threshold value (Ts); and making a judgment of the door jamming when the given condition is kept for a given time (Tm).
Claims9
A controller of an automotive power door, comprising:
- an electric drive motor that drives the door to move in an open/close direction;
- a pulse encoder that outputs a 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.
A controller of an automotive power door, comprising:
- an electric drive motor that drives the door to move in an open/close direction;
- a pulse encoder that outputs a 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 including:
- a first section that calculates a total duration time of a given number of the series of pulses outputted from the pulse encoder;
- a second section that senses a given condition wherein the total duration time is greater than a threshold value;
- a third section that makes a judgment of the door jamming when the given condition is kept for a given time.
Dependencies are inferred from the claim text.