Apparatus and method for alarming decrease in tire air-pressure
First Claim
1. An apparatus for alarming decrease in tire air-pressure for alarming decrease in tire air-pressure based on rotational information obtained from tires attached to a vehicle, comprising:
- a rotational information detecting means for detecting rotational information of the respective tires;
a rotational information memory means for storing the rotational information of the respective tires;
a judged value calculating means for calculating judged values based on the rotational information of the respective tires;
a judged value memory means for storing the judged values;
a transition calculating means for calculating transition of the judged values based on the stored judged values;
a judging means for determining a decrease in tire air-pressure based on the judged values; and
an alarming means for issuing preliminary alarm prior to issuing a predetermined alarm for informing decrease in internal pressure based on the transition of the judged values in case the judged value tends to move to exceed a predetermined threshold for determining a decrease in internal pressure.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for alarming decrease in tire air-pressure comprising: a rotational information detecting means for detecting rotational information of the respective tires; a rotational information memory means; a judged value calculating means for calculating judged values based on the rotational information; a judged value memory means; a transition calculating means for calculating transition of the judged values based on the stored judged values; a judging means for determining a decrease in tire air-pressure; and an alarming means for issuing preliminary alarm prior to issuing a predetermined alarm for informing decrease in internal pressure in case the judged value tends to move to exceed a predetermined threshold. It is possible to appropriately inform the driver of the vehicle of a decompressed condition of a tire for making the driver drive safely.
-
Citations
6 Claims
-
1. An apparatus for alarming decrease in tire air-pressure for alarming decrease in tire air-pressure based on rotational information obtained from tires attached to a vehicle, comprising:
- a rotational information detecting means for detecting rotational information of the respective tires;
a rotational information memory means for storing the rotational information of the respective tires;
a judged value calculating means for calculating judged values based on the rotational information of the respective tires;
a judged value memory means for storing the judged values;
a transition calculating means for calculating transition of the judged values based on the stored judged values;
a judging means for determining a decrease in tire air-pressure based on the judged values; and
an alarming means for issuing preliminary alarm prior to issuing a predetermined alarm for informing decrease in internal pressure based on the transition of the judged values in case the judged value tends to move to exceed a predetermined threshold for determining a decrease in internal pressure. - View Dependent Claims (2, 3)
- a rotational information detecting means for detecting rotational information of the respective tires;
-
4. A method for alarming decrease in tire air-pressure based on rotational information obtained from tires attached to a vehicle, comprising the steps of:
- detecting rotational information of the respective tires;
storing the rotational information of the respective tires;
calculating judged values based on the rotational information of the respective tires;
storing the judged values;
calculating transition of the judged values based on the stored judged values;
determining a decrease in tire air-pressure based on the judged values; and
issuing preliminary alarm prior to issuing a predetermined alarm for informing decrease in internal pressure based on the transition of the judged values in case the judged value tends to move to exceed a predetermined threshold for determining a decrease in internal pressure. - View Dependent Claims (5, 6)
- detecting rotational information of the respective tires;
Specification