Self-calibrating tactile haptic muti-touch, multifunction switch panel
First Claim
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1. A method for determining parameters associated with a haptic feedback output, comprising:
- detecting a vibration of at least a portion of a human-machine interface, wherein detecting the vibration comprises;
receiving force data from at least one force sensor;
comparing the received force data with a first force threshold and a second force threshold, wherein the second force threshold is greater than the first force threshold, and the second force threshold is a minimum amount of force associated with a touch event by a user to a touch plate coupled to the at least one force sensor; and
in response to the received force data oscillating between the first force threshold and the second force threshold for at least a predetermined time period, identifying the vibration based on the received force data, the vibration having a magnitude;
estimating a calibration offset based, at least in part, on the magnitude; and
establishing at least one parameter associated with a haptic actuator of the human-machine interface based on the estimated calibration offset, the at least one parameter at least partially defining a haptic response generated by the haptic actuator.
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Abstract
A method for determining parameters associated with a haptic feedback output comprises detecting a vibration of at least a portion of a human-machine interface and determining a magnitude associated with the detected vibration. A calibration offset is determined based, at least in part, on the determined magnitude associated with the detected vibration. The method further comprises establishing at least one parameter associated with a haptic actuator of the human-machine interface based on the estimated calibration offset, the at least one parameter at least partially defining a haptic response generated by the haptic actuator.
182 Citations
20 Claims
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1. A method for determining parameters associated with a haptic feedback output, comprising:
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detecting a vibration of at least a portion of a human-machine interface, wherein detecting the vibration comprises; receiving force data from at least one force sensor; comparing the received force data with a first force threshold and a second force threshold, wherein the second force threshold is greater than the first force threshold, and the second force threshold is a minimum amount of force associated with a touch event by a user to a touch plate coupled to the at least one force sensor; and in response to the received force data oscillating between the first force threshold and the second force threshold for at least a predetermined time period, identifying the vibration based on the received force data, the vibration having a magnitude; estimating a calibration offset based, at least in part, on the magnitude; and establishing at least one parameter associated with a haptic actuator of the human-machine interface based on the estimated calibration offset, the at least one parameter at least partially defining a haptic response generated by the haptic actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A force-based haptic human-machine interface, comprising:
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a touch plate having a touch surface; at least one force sensor coupled to the touch plate and configured to detect a force applied to the touch surface; an actuator coupled to the touch plate and configured to deliver a mechanical output to the touch plate; and a processor coupled to the at least one force sensor and the actuator, the processor configured to; detect a vibration of at least a portion of a human-machine interface based on the force detected by the at least one force sensor, wherein detecting the vibration comprises; receiving force data from the at least one force sensor; comparing the received force data with a first force threshold and a second force threshold, wherein the second force threshold is greater than the first force threshold, and the second force threshold is a minimum amount of force associated with a touch event to the touch plate by a user; and in response to the received force data oscillating between the first force threshold and the second force threshold for at least a predetermined time period, identifying the vibration based on the received force data; determine a parameter associated with the detected vibration; estimate a calibration offset based on the determined parameter associated with the detected vibration; and establish at least one output parameter associated with the actuator based on the estimated calibration offset, the at least one output parameter configured to affect the mechanical output generated by the actuator. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A vehicle, comprising:
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one or more ground-engaging devices; a steering interface, coupled to one or more ground-engaging devices and comprising a rim portion and a hub portion, the rim portion configured for grasping by an operator of a vehicle; a touch plate having a touch surface, at least a portion of the touch plate coupled to the steering interface; at least one force sensor coupled to the touch plate and configured to detect a force applied to the touch surface; an actuator coupled to the touch plate and configured to deliver a mechanical output to the touch plate; a processor coupled to the at least one force sensor and the actuator, the processor configured to; detect a vibration associated with at least a portion of a human-machine interface based on the force detected by the at least one force sensor, wherein detecting the vibration comprises; receiving force data from the at least one force sensor; comparing the received force data with a first force threshold and a second force threshold, wherein the second force threshold is greater than the first force threshold, and the second force threshold is a minimum amount of force associated with a touch event to the touch plate by a user; and in response to the received force data oscillating between the first force threshold and the second force threshold for at least a predetermined time period, identifying the vibration based on the received force data; determine a parameter associated with the detected vibration; estimate a calibration offset based on the determined parameter associated with the detected vibration; and establish at least one output parameter associated with the actuator based on the estimated calibration offset, the at least one output parameter configured to affect the mechanical output generated by the haptic actuator. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification