About 52 results
https://drivepatents.com/patents/1007800 · 16 Nov 2011
An apparatus for detecting a decrease in air pressure of a tire attached to a vehicle. The apparatus includes a rotation speed detection means for periodically detecting rotation speeds of tires of respective wheels of the vehicle; a rotation wheel speed r...
https://drivepatents.com/patents/1007929 · 9 Nov 2011
An apparatus includes an acceleration calculation means for calculating, based on rotation speed information obtained from a rotation speed detection means, accelerations of the respective tires; an acceleration variation calculation means for calculating ...
https://drivepatents.com/patents/1008232 · 26 Oct 2011
An apparatus for detecting a decrease in a tire air pressure includes: a rotation information detection means for periodically detecting tire rotation information regarding the respective wheels of a four-wheel vehicle; a wheel speed calculation means for ...
https://drivepatents.com/patents/1009556 · 14 Sep 2011
A method for detecting a tire having a decreased internal pressure by making a relative comparison of wheel speeds of tires. The method includes a step of detecting wheel rotation information of the respective tires of the vehicle; a step of calculating wh...
https://drivepatents.com/patents/1013051 · 11 May 2011
The detection appatatus includes means for detecting rotation speed information of the respective wheels of a vehicle; means for estimating, a frequency characteristic of the wheel rotation speed information; and means for determining, based on the estimat...
https://drivepatents.com/patents/1068750 · 29 Mar 2006
To provide a device for detecting whether heterogeneous tires are mounted on the respective left and right driving wheels or not and accurately detecting the decreased tire pressures. The detection device of heterogeneous tires of the present invention is ...
https://drivepatents.com/patents/1068991 · 22 Mar 2006
The method for judging the load distribution of a vehicle is characterized in that the load distribution of a vehicle is judged by comparing the result of comparing the calculation value of the rotational speeds of wheels in predetermined two combinations ...
https://drivepatents.com/patents/1069966 · 15 Feb 2006
To provide a judging method of loading condition of a vehicle and a tire deflation warning system capable of preventing alarming four-wheel diffusion for a vehicle with heavy load. The judging method of vehicle loading condition including the steps of dete...
https://drivepatents.com/patents/1070760 · 18 Jan 2006
A tire deflation warning system (10) having a means (2) for detecting the rotational speeds of wheels on a vehicle and a means for judging tires with reduced air pressure from the rotational speed information of the wheels including a means (1) for judging...
https://drivepatents.com/patents/1071620 · 21 Dec 2005
A tire deflation warning system, including a means for detecting a rotational velocity of a wheel attached to a vehicle and a means for judging a tire pneumatic pressure drop by determining a reduced pressure judging value that judges the tire pneumatic pr...