发明名称 |
Tire pressure monitoring system |
摘要 |
A tire pressure monitoring system for a tractor-trailer type vehicle includes a series of sensors on each of the wheels of the vehicle. When a low pressure condition occurs, the sensor activates a radio frequency transmitter for delivering a low power FM signal to a receiver on the tractor. A delay circuit is incorporated in the receiver to require that the signal from the transmitter last for a predetermined duration prior to energizing an indicator in the tractor. The receiver antenna is preferably mounted on the bottom of the tractor in a plane including the trailer wheels.
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申请公布号 |
US4816802(A) |
申请公布日期 |
1989.03.28 |
申请号 |
US19850724779 |
申请日期 |
1985.04.18 |
申请人 |
DOERKSEN, BEN F. |
发明人 |
DOERKSEN, BEN F.;NATTINGER, DONALD M. |
分类号 |
B60C23/04;(IPC1-7):B60C23/00;G08B1/08 |
主分类号 |
B60C23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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