| 摘要 |
<p>A system, method and apparatus for use on vehicles having road wheels (51, 52, 53, 54) with pneumatic tires, which include sensors (55 to 62) that produce signals that are a measure of the rotational speed of said wheels, indicators (68, 69, 75 to 79, 85 to 88, 93) arranged to provide information to the driver of the vehicle, and a computer (67) operably associated with the sensors and indicators. The computer is arranged to monitor the wheel speed sensors during vehicle operation, and to perform at least one of the functions of: determining a value that represents tire inflation pressure and signaling the dirver when this value falls below a predetermined value; determining a value that represents tire inflation pressure and signaling this value to the driver; calculating a value that represents vehicle speed and signaling this value to the driver; and calculating a value that represents distance travelled by the vehicle and signaling this distance to the driver.</p> |
