VEHICLE WITH POWER SWINGING DOOR AND POSITION-BASED TORQUE COMPENSATION METHOD
First Claim
1. A system for controlling opening and closing of a power swinging door, the system comprising:
- a rotary actuator configured to apply an output torque to the door in response to actuator control signals;
a position sensor configured to measure a raw angular position of the door and to output raw angular position signals indicative of the raw angular position; and
a controller in communication with the rotary actuator and the position sensor, wherein the controller is configured to use the raw angular position signals to determine wind-based or grade-based external forces acting on the door when the door is opening or closing, and to selectively increase or decrease the output torque from the rotary actuator via the actuator control signals in response to the determined external forces to thereby compensate for the external forces.
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Accused Products
Abstract
A system controls opening/closing of a power swinging door, e.g., in a vehicle, and includes a rotary actuator, position sensor, and controller. In a controller-executed method, the actuator applies torque to the door in response to control signals. The controller uses a measured raw angular position from the sensor to determine wind- or grade-based external forces acting on the door during opening or closing, and adjusts the actuator torque in response to the external forces. The sensor may be a rotary encoder, with the actuator being an electric motor. Lookup tables contain data relating oscillation to the external forces. The controller may induce door oscillation and to relate oscillation decay to the external forces. An obstacle-based current threshold may be adjusted in response to the external forces.
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Citations
20 Claims
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1. A system for controlling opening and closing of a power swinging door, the system comprising:
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a rotary actuator configured to apply an output torque to the door in response to actuator control signals; a position sensor configured to measure a raw angular position of the door and to output raw angular position signals indicative of the raw angular position; and a controller in communication with the rotary actuator and the position sensor, wherein the controller is configured to use the raw angular position signals to determine wind-based or grade-based external forces acting on the door when the door is opening or closing, and to selectively increase or decrease the output torque from the rotary actuator via the actuator control signals in response to the determined external forces to thereby compensate for the external forces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle comprising:
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a vehicle body; a swinging door that pivots about a hinge mounted to the vehicle body; a rotary actuator configured to apply an output torque to the door in response to actuator control signals; a position sensor configured to measure a raw angular position of the door, and outputs raw angular position signals indicative of the measured raw angular position; and a controller programmed to regulate an opening and closing motion of the door via the actuator control signals, wherein the controller is in communication with the rotary actuator and the position sensor, and is configured to use an oscillation of the raw angular position signals to determine one or both of wind-based and grade-based external forces acting on the door when the door is opening or closing, and to selectively adjust the output torque from the rotary actuator via the actuator control signals in response to the determined external forces. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for controlling opening and closing of a power swinging door, the method comprising:
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measuring a raw angular position of the door via a position sensor; outputting raw angular position signals indicative of the measured raw angular position; determining, via a controller, wind-based or grade-based external forces acting on the door using the raw angular position signals from the position sensor when the door is opening or closing; and selectively increasing or decreasing the output torque from a rotary actuator via transmission of a set of actuator control signals from the controller to the rotary actuator in response to the determined external forces to thereby compensate for the external forces. - View Dependent Claims (17, 18, 19, 20)
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Specification