摘要:
Method for transmitting a radio signal between a moving electronics unit of a wheel and a fixed central electronic control unit of the vehicle, includes: defining an angular reference point of the wheel; defining a division of one wheel revolution into successive basic sectors, and transmitting successive radio signals between the two units so that each signal is transmitted at a calculated predetermined wheel angular position; calculating the angular rotation speed of the wheel; determining a minimum wheel rotation sector required for the transmission time of a signal between the two units, at the calculated angular rotation speed; determining an angular offset of transmission between a first and a second following signal, with respect to the angular reference point, as being equal to the smallest multiple of the basic division sector which covers the time required for transmission of the first radio signal at the calculated angular rotation speed.
摘要:
A vehicle tire information obtaining apparatus for obtaining tire information relating to a mounted tire and a non-mounted tire of a vehicle. The apparatus includes: (a) tire state detectors which are provided in the respective tires and each of which detects a state of the corresponding tire; (b) transmitters which are provided in the respective tires and which transmit tire data sets, as the tire information, each containing at least one tire-state data element representative of the detected state of the corresponding tire; (c) a receiver which is provided in a body of the vehicle and which receives the tire data sets transmitted by the transmitters; and (d) a non-mounted-tire information separator which separates the tire data set transmitted from the non-mounted tire, from the tire data set transmitted from the mounted tire.
摘要:
A tire deflation monitoring system utilizes a device which attaches to the undercarriage of a vehicle adjacent each pneumatically inflated tire which is to be monitored. The device employs a component such as a wheel for rotationally contacting the road surface upon which the vehicle is disposed. When the road surface is contacted, the wheel is forced upwardly, causing contact to be made with an electrical switch that activates an indicator located in the driver's compartment of the vehicle.
摘要:
Tire deflation warning device comprising means for producing a noise which will not be suppressed by the vehicle suspension and will give a warning to the vehicle driver of the tire deflation.
摘要:
A DEVICE ATTACHABLE TO AN INFLATED VEHICLE TIRE TO WARN OF EXCESSIVE DEFLECTION SUCH AS THAT PRODUCED BY UNDERINFLATION, OVERLOAD, OR BOTH. THE DEVICE COMPRISES AN ELONGATED FLEXIBLE MEMBER SECURED IN COMPACT CONDITION TO THE RIM, OR TO THE INFLATED TIRE ADJACENT THE RIM, WITH A PORTION OF THE SUPPORTING MEANS FOR THE MEMBER DISPOSED FOR CONTACT WITH THE ROAD WHEN THE TIRE IS OPERATED UNDER CONDITIONS OF EXCESSIVE DEFLECTION TO THEREBY RELEASE THE MEMBER FOR EXTENSION INTO STRIKING CONTACT WITH THE ROAD AND/OR VEHICLE ON WHICH THE TIRE IS MOUNTED, THUS PRODUCING AUDIBLE WARNING OF THE EXCESSIVE DEFLECTION.