Method and apparatus for detecting abnormalities of tire, and program for detecting abnormalities of tire
First Claim
1. A method for detecting abnormalities of a tire which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle, comprising the steps of:
- detecting rotational pulses of wheels of the tires, calculating and storing rotational information of the tires on the basis of the rotational pulses, calculating and processing fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information, and storing data during driving which have been processed for each single rotation and performing prediction of abnormalities of a tire on the basis of changes in the data.
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Accused Products
Abstract
A method for detecting abnormalities of a tire which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle. The method includes the steps of: detecting rotational pulses of wheels of the tires, calculating and storing rotational information of the tires on the basis of the rotational pulses, calculating and processing fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information, and storing data during driving which have been processed for each single rotation and performing prediction of abnormalities of a tire on the basis of changes in the data. Irregularities in rotational information of rotational pulses in a single rotation of the tires are detected for predicting a danger of abnormalities occurring to the tires to thus enable safe driving.
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Citations
18 Claims
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1. A method for detecting abnormalities of a tire which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle, comprising the steps of:
- detecting rotational pulses of wheels of the tires, calculating and storing rotational information of the tires on the basis of the rotational pulses, calculating and processing fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information, and storing data during driving which have been processed for each single rotation and performing prediction of abnormalities of a tire on the basis of changes in the data.
- View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for detecting abnormalities of a tires which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle, comprising:
- a rotational information detecting means for detecting rotational pulses of wheels of the tires;
a calculating and storing means for calculating and storing rotational information of the tires on the basis of the rotational pulses;
a processing means for calculating and processing fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information; and
an abnormality detecting means for storing data during driving which have been processed for each single rotation and performing predictions of abnormalities of a tire on the basis of changes in the data. - View Dependent Claims (7, 8)
- a rotational information detecting means for detecting rotational pulses of wheels of the tires;
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9. A program for detecting abnormalities of a tire, which makes a computer function, for predicting abnormal conditions of a tire, as a calculating and storing means for calculating and storing rotational information of tires on the basis of the rotational pulses, a processing means for calculating and processing fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information, and an abnormality detecting means for storing data during driving which have been processed for each single rotation and performing predictions of abnormalities of a tire on the basis of changes in the data.
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10. A method for detecting abnormalities of a tire which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle, comprising the steps of:
- detecting rotational pulses of wheels of the respective tires;
calculating and storing rotational information of the tires on the basis of the rotational pulses;
comparing whether a running speed of the vehicle is not more than a reference speed or not;
calculating and processing an amount of fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information;
comparing, in case the running speed of the vehicle is not more than the reference speed, the processed data with a specified reference value to determine whether the data fall within a preliminarily set range for the data; and
predicting, on the basis of the determination of the comparison, that a danger exists that abnormalities are likely to occur to a tire during high speed running and accordingly issuing an alarm. - View Dependent Claims (12)
- detecting rotational pulses of wheels of the respective tires;
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11. A method for detecting abnormalities of a tire which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle, comprising the steps of:
- detecting rotational pulses of wheels of the respective tires;
calculating and storing rotational information of the tires on the basis of the rotational pulses;
comparing whether a running speed of the vehicle is not more than a reference speed or not;
calculating and processing an amount of fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information;
storing data during driving that have been processed for each single rotation;
comparing a compared value, which has been obtained by comparing fluctuations in rotational pulse intervals in a single rotation of the tires at the time the vehicle performs low speed running with the stored data, with a threshold for indicating a load condition of the tire, in case the running speed of the vehicle is not more than the reference speed; and
predicting, on the basis of the determination of the comparison, that a danger exists that abnormalities are likely to occur to a tire during high speed running and accordingly issuing an alarm.
- detecting rotational pulses of wheels of the respective tires;
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13. An apparatus for detecting abnormalities of a tire which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle, comprising:
- a detecting means for detecting rotational pulses of wheels of the respective tires;
a calculating and storing means for calculating and storing rotational information of the tires on the basis of the rotational pulses;
a speed comparing means for comparing whether a running speed of the vehicle is not more than a reference speed or not;
a fluctuation processing means for calculating and processing an mount of fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information;
a reference value comparing means for comparing the processed data with a specified reference value for determining, in case the running speed of the vehicle is not more than the reference speed, whether the data fall within a preliminarily set range for the data;
an abnormality predicting means for predicting, on the basis of the determination of the comparison, that a danger exists that abnormalities are likely to occur to a tire when performing high speed running; and
an alarming means for issuing an alarm. - View Dependent Claims (15)
- a detecting means for detecting rotational pulses of wheels of the respective tires;
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14. An apparatus for detecting abnormalities of a tire which detects abnormalities of a tire on the basis of rotational information obtained from tires attached to wheels of a vehicle, comprising:
- a detecting means for detecting rotational pulses of wheels of the respective tires;
a calculating and storing means for calculating and storing rotational information of the tires on the basis of the rotational pulses;
a speed comparing means for comparing whether a running speed of the vehicle is not more than a reference speed or not;
a fluctuation processing means for calculating and processing an amount of fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information;
a storing means for storing data which have been processed for each single rotation during running;
a threshold comparing means for comparing a compared value, which has been obtained by comparing fluctuations in rotational pulse intervals in a single rotation of the tires at the time the vehicle performs low speed running with the stored data, with a threshold for indicating a load condition of the tire, in case the running speed of the vehicle is not more than the reference speed;
an abnormality announcing means for predicting, on the basis of the determination of the comparison, that a danger exists that abnormalities are likely to occur to a tire when performing high speed running; and
an alarming means for issuing an alarm.
- a detecting means for detecting rotational pulses of wheels of the respective tires;
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16. A program for detecting abnormalities of a tire, which makes a computer function, for predicting abnormal conditions of tires, as a calculating and storing means for calculating and storing rotational information of the tires on the basis of the rotational pulses;
- a speed comparing means for comparing whether a running speed of the vehicle is not more than a reference speed or not;
an fluctuation processing means for calculating and processing an amount of fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information;
a reference value comparing means for comparing the processed data with a specified reference value in case the running speed of the vehicle is not more than the reference speed, whether the processed data fall within a preliminarily set range for the data or not; and
an abnormality predicting means for predicting, on the basis of the determination of the comparison, that a danger exists that abnormalities are likely to occur to a tire when performing high speed running, and issuing an alarm. - View Dependent Claims (18)
- a speed comparing means for comparing whether a running speed of the vehicle is not more than a reference speed or not;
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17. A program for detecting abnormalities of a tire, which makes a computer function, for predicting abnormal conditions of tires, as a calculating and storing means for calculating and storing rotational information of the tires on the basis of the rotational pulses;
- a speed comparing means for comparing whether a running speed of the vehicle is not more than a reference speed or not;
a fluctuation processing means for calculating and processing an amount of fluctuations in rotational pulse intervals in a single rotation of the tires on the basis of the rotational information;
a storing means for storing processed data per single rotation during running;
a threshold comparing means for comparing a compared value, which has been obtained by comparing fluctuations in rotational pulse intervals in a single rotation of the tires at the time the vehicle performs low speed running with the stored data, with a threshold for indicating a load condition of the tire, in case the running speed of the vehicle is not more than the reference speed; and
an abnormality predicting means for predicting, on the basis of the determination of the comparison, that a danger exists that abnormalities are likely to occur to a tire when performing high speed running and accordingly issuing an alarm.
- a speed comparing means for comparing whether a running speed of the vehicle is not more than a reference speed or not;
Specification