US6323765B1
Expired / Lapsed
US
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Tire air-pressure abnormality alarming device and method thereof
Assignee: Sumitomo Rubber Industries Ltd
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Filing: 1998-08-05
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Granted: 2001-11-27
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Expires: 2018-08-05
Abstract
Abstract A tire air-pressure abnormality alarming device for informing decrease in air-pressure of tires attached to a four-wheeled vehicle, characterized in that the device prohibits start of initializing operations for updating stored values for physical amounts related to tires or wheels in the case where air-pressures of the tires are judged to be normal, if air-pressure abnormality of a tire is being alarmed. Initialization is accepted only after the internal pressure has become normal, whereby erroneous initialization with any tire being in a decompressed condition can be prevented. Thus, normal operations for detecting decompression of a tire can be maintained.
Inventors
- 👤 Hiroto Horie
- 👤 Minao Yanase
- 👤 Mikao Nakajima
- 👤 Yasushi Kobayashi
- 👤 Masaaki Komazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:13
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/06; B60C23/061
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
51 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if air-pressure abnormality of a tire is being alarmed.
Claim 2
Dependent Claim
51 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if air-pressure abnormality of a tire is being alarmed.
Claim 3
Dependent Claim
53 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if the vehicle is determined to be in a running condition.
Claim 4
Dependent Claim
53 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if the vehicle is determined to be in a running condition.
Claim 5
Dependent Claim
49 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if an inspection mode is being assumed.
Claim 6
Dependent Claim
49 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if an inspection mode is being assumed.
Claim 7
Dependent Claim
55 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if a system is in an abnormal condition or in a terminated condition.
Claim 8
Dependent Claim
55 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air-pressure, if a system is in an abnormal condition or in a terminated condition.
Claim 9
Dependent Claim
90 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if air-pressure abnormality of a tire is being alarmed.
Claim 10
Dependent Claim
90 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if air-pressure abnormality of a tire is being alarmed.
Claim 11
Dependent Claim
92 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if the vehicle is determined to be in a running condition.
Claim 12
Dependent Claim
92 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if the vehicle is determined to be in a running condition.
Claim 13
Dependent Claim
88 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if an inspection mode is being assumed.
Claim 14
Dependent Claim
88 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if an inspection mode is being assumed.
Claim 15
Dependent Claim
94 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if a system is in an abnormal condition or in a terminated condition.
Claim 16
Dependent Claim
94 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if a system is in an abnormal condition or in a terminated condition.
Claim 17
Dependent Claim
95 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air pressure if one of the following is occurring: (a) if air-pressure abnormality of a tire is being alarmed; (b) if the vehicle is determined to be in a running condition; (c) if an inspection mode is being assumed; and (d) if a system is in an abnormal condition or in a terminated condition.
Claim 18
Dependent Claim
95 words
A tire air-pressure abnormality alarming device for informing a driver of a decrease in air-pressure of tires attached to a four-wheeled vehicle, comprising: means for prohibiting start of initializing operations for updating stored air-pressure reference values for tires having a normal air pressure if one of the following is occurring: (a) if air-pressure abnormality of a tire is being alarmed; (b) if the vehicle is determined to be in a running condition; (c) if an inspection mode is being assumed; and (d) if a system is in an abnormal condition or in a terminated condition.
Claim 19
Dependent Claim
133 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if one of the following is occurring: (a) if air-pressure abnormality of a tire is being alarmed; (b) if the vehicle is determined to be in a running condition; (c) if an inspection mode is being assumed; and (d) if a system is in an abnormal condition or in a terminated condition.
Claim 20
Dependent Claim
133 words
A tire air-pressure abnormality alarming method comprising: detecting rotational angular speeds of tires or wheels of a four-wheeled vehicle; storing coefficients related to the tires or wheels obtained from the rotational angular speeds; determining whether air-pressure has decreased or not from a relationship between a reference value and a determined value for decompression obtained from rotational angular speeds corrected by using the coefficients; and prohibiting start of initializing operations for updating the stored reference values for tires having a normal air-pressure, if one of the following is occurring: (a) if air-pressure abnormality of a tire is being alarmed; (b) if the vehicle is determined to be in a running condition; (c) if an inspection mode is being assumed; and (d) if a system is in an abnormal condition or in a terminated condition.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-11-26 | 2005-05-28 | 2005-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-26 | 2009-05-28 | 2009-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-26 | 2013-05-28 | 2013-11-27 | $7700.00 | Window Closed / Lapsed |