Method and system for monitoring instantaneous behavior of a tire in a rolling condition
First Claim
1. A method for monitoring instantaneous behavior of a tire in a rolling condition, comprising:
- acquiring and storing, at least temporarily, at least one reference curve representing an acceleration profile of at least one specified point of the tire during at least one portion of a revolution of the tire;
continuously acquiring signals of acceleration of the at least one point during the at least one portion of a revolution;
deriving from the signals of acceleration at least one cyclic curve of acceleration of the at least one point during the at least one portion of a revolution;
comparing the at least one cyclic curve with the at least one reference curve; and
emitting a signal depending on the comparison;
wherein the at least one reference curve represents the acceleration profile of the at least one point in at least two directions,wherein the directions comprise two or more of a centripetal direction, a tangential direction, and a lateral direction,wherein the signals of acceleration of the at least one point in the at least two directions are continuously acquired, andwherein the emitted signal indicates the instantaneous behavior of the tire.
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Accused Products
Abstract
A method for monitoring instantaneous behavior of a tire in a rolling condition includes acquiring and storing at least one reference curve representing an acceleration profile of at least one specified point of the tire as a function of its position during at least one portion of a revolution of the tire; continuously acquiring signals of acceleration of the at least one point; deriving from the signals of acceleration at least one cyclic curve of acceleration of the at least one point; comparing the at least one cyclic curve with the at least one reference curve; and emitting a signal depending on the comparison that indicates the instantaneous behavior of the tire. The at least one reference curve represents the acceleration profile in at least two directions, including two or more of a centripetal direction, a tangential direction, and a lateral direction. A related system and tire are also disclosed.
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Citations
28 Claims
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1. A method for monitoring instantaneous behavior of a tire in a rolling condition, comprising:
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acquiring and storing, at least temporarily, at least one reference curve representing an acceleration profile of at least one specified point of the tire during at least one portion of a revolution of the tire; continuously acquiring signals of acceleration of the at least one point during the at least one portion of a revolution; deriving from the signals of acceleration at least one cyclic curve of acceleration of the at least one point during the at least one portion of a revolution; comparing the at least one cyclic curve with the at least one reference curve; and emitting a signal depending on the comparison; wherein the at least one reference curve represents the acceleration profile of the at least one point in at least two directions, wherein the directions comprise two or more of a centripetal direction, a tangential direction, and a lateral direction, wherein the signals of acceleration of the at least one point in the at least two directions are continuously acquired, and wherein the emitted signal indicates the instantaneous behavior of the tire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 19)
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9. A system for monitoring instantaneous behavior of a tire in a rolling condition, comprising:
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at least one memory element for acquiring and storing, at least temporarily, at least one reference curve representing an acceleration profile of at least one specified point of the tire during at least one portion of a revolution of the tire; at least one sensor associated with the at least one point for emitting, over a period of time, signals of acceleration of the at least one point; a receiving device for continuously acquiring the signals of acceleration of the at least one point during the at least one portion of a revolution; and an elaboration unit incorporating a program for determining from the signals of acceleration at least one cyclic curve of acceleration of the at least one point during the at least one portion of a revolution; wherein the elaboration unit continuously compares the at least one cyclic curve with the at least one reference curve, wherein the elaboration unit emits a signal depending on the comparison, wherein the at least one reference curve represents the acceleration profile of the at least one point in at least two directions, wherein the directions comprise two or more of a centripetal direction, a tangential direction, and a lateral direction, wherein the signals of acceleration of the at least one point in the at least two directions are emitted, and wherein the emitted signal depending on the comparison indicates the instantaneous behavior of the tire. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A pneumatic tire, comprising:
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at least one sensor associated with at least one specified point of the tire; wherein the at least one sensor emits, over a period of time, a signal representing an acceleration profile of the at least one point of the tire during at least one portion of a revolution of the tire, wherein the signal represents the acceleration profile in at least two directions, and wherein the directions comprise two or more of a centripetal direction, a tangential direction, and a lateral direction. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification