Method and Apparatus for Monitoring Pressure of Vehicle Tires
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Accused Products
Abstract
In a method and apparatus for monitoring vehicle tire pressure a tire inflation pressure value is acquired and compared with at least one stored setpoint value; and based on the comparison result, it is determined whether the vehicle tire has an incorrect tire pressure, (particularly, an excessively low tire pressure). According to the invention when a detected activation event occurs, a current kilometer reading is acquired and is stored together with predefined information. An activation event is detected if an inflation of at least one of the tires or manual re-activation is detected.
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Citations
20 Claims
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1-9. -9. (canceled)
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10. A method for monitoring vehicle tire pressure, in which method a tire inflation pressure is acquired and compared with at least one stored setpoint value, and based on a result of the comparison, it is determined whether the vehicle tire has an incorrect tire pressure, wherein:
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when a detected activation event occurs, a current kilometer reading is acquired and is stored together with predefined information; and an activation event is detected if inflation of at least one of the tires or manual re-activation is detected. - View Dependent Claims (11, 12, 13, 14)
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15. A device for monitoring vehicle tire pressure, comprising:
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an evaluation and control unit; and at least one tire sensor unit which acquires, for an associated tire, a tire inflation pressure value and transmits it to the evaluation and control unit;
wherein,the evaluation and control unit compares the acquired tire pressure value with at least one stored setpoint value and, based on a comparison result, determines whether the vehicle tire has an incorrect tire pressure; when an activation event is detected, the evaluation and control unit determines a current kilometer reading and stores it together with predefined acquired information in a memory unit; and the evaluation and control unit detects an activation event if at least one tire is inflated or manual re-activation is detected. - View Dependent Claims (16, 17, 18)
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19. A method for evaluating vehicle tire inflation pressure by measuring tire pressure and comparing measured pressure values with a stored setpoint, wherein said method further comprises:
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detecting occurrence of an activation event whenever there occurs at least one of a tire inflation, a manual reset, or a rise or fall of tire pressure beyond definable threshold values; upon detection of an activation event, storing in a memory a current mileage reading for the vehicle, together with predefined information comprising a current measured tire pressure value; and storing in said memory mileage values and associated predefined information for each of a predefined number of activation events; and diagnosing said tire pressure based on information stored in said memory. - View Dependent Claims (20)
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Specification