Apparatus and method for alarming decrease in tire air-pressure
First Claim
1. An apparatus for alarming a decrease in tire air-pressure which alarms the decrease in inner pressure of the tire by using a judged value calculated based on wheel speed information obtained from tires fitted to a four-wheeled vehicle, comprising calculating means for calculating the judged value based on the wheel speed information on each of the tires, the calculating means being connected to one of on-vehicle LANs, via which the wheel speed information on each of the tires is transmitted wherein the calculates means captures the wheel speed information on each of the tires via one of the on-vehicle LANs.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for alarming a decrease in tire air-pressure which alarms the decrease in inner pressure of the tire by using a judged value calculated based on wheel speed information obtained from tires fitted to a four-wheeled vehicle. The apparatus comprises calculating means for calculating the judged value based on the wheel speed information on each of the tires, the calculating means being connected to one of on-vehicle LANs, via which the wheel speed information on each of the tires is transmitted. The calculates means captures the wheel speed information on each of the tires via one of the on-vehicle LANs. The wheel speed information is converted into the digital data, which is then captured into the apparatus for alarming the decrease in tire air-pressure via the on-vehicle LAN, thus remarkably reducing the number of lines laid in the vehicle in comparison with the prior art.
4 Citations
8 Claims
- 1. An apparatus for alarming a decrease in tire air-pressure which alarms the decrease in inner pressure of the tire by using a judged value calculated based on wheel speed information obtained from tires fitted to a four-wheeled vehicle, comprising calculating means for calculating the judged value based on the wheel speed information on each of the tires, the calculating means being connected to one of on-vehicle LANs, via which the wheel speed information on each of the tires is transmitted wherein the calculates means captures the wheel speed information on each of the tires via one of the on-vehicle LANs.
- 5. A method for alarming a decrease in tire air-pressure which alarms the decrease in inner pressure of the tire by using a judged value calculated based on wheel speed information obtained from tires fitted to a four-wheeled vehicle, comprising the step of capturing the wheel speed information on each of the tires into calculating means for calculating the judged value based on the wheel speed information on each of the tires via one of on-vehicle LANs.
Specification