Direct TPMS sensor combined with an ABS
First Claim
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1. A tire pressure monitoring system comprising:
- a. a wireless direct tire pressure sensor transmitter unit mounted on the wheel rim inside each tire to be monitored;
b. receiver antenna and electronics added to each existing ABS wheel sensor assembly to receive and condition the tire pressure sensor'"'"'s transmission signal and forward it to the existing central ABS computer using existing ABS wheel sensor vehicle wiring;
c. modified software in the central ABS computer to process the conditioned tire pressure sensor'"'"'s transmission signals received from each ABS wheel sensor; and
d. a TPMS display to indicate tire pressure information calculated by the central ABS computer.
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Abstract
Tire pressure sensors are combined with an ABS to obtain a very low cost direct TPMS. A direct tire pressure sensor unit is mounted in each wheel and the existing ABS wheel sensor units are modified to receive transmission signals from the direct pressure sensors. The existing ABS wheel sensor vehicle wiring is used to couple the received signals to the existing central ABS computer. The central ABS computer software is modified to process these received signals and calculate tire pressure information. This information is displayed using a TPMS display symbol.
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Citations
15 Claims
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1. A tire pressure monitoring system comprising:
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a. a wireless direct tire pressure sensor transmitter unit mounted on the wheel rim inside each tire to be monitored;
b. receiver antenna and electronics added to each existing ABS wheel sensor assembly to receive and condition the tire pressure sensor'"'"'s transmission signal and forward it to the existing central ABS computer using existing ABS wheel sensor vehicle wiring;
c. modified software in the central ABS computer to process the conditioned tire pressure sensor'"'"'s transmission signals received from each ABS wheel sensor; and
d. a TPMS display to indicate tire pressure information calculated by the central ABS computer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A low cost method of providing a vehicle direct tire pressure monitoring system comprising the steps of:
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a. mounting a wireless direct tire pressure sensor unit on the wheel rim inside each tire to be monitored;
b. adding receiver antenna and electronics to each wheel'"'"'s existing ABS wheel sensor unit to receive and condition the transmitted signal from the tire pressure sensor;
c. using the existing ABS wheel sensor vehicle wiring to couple the tire pressure sensor signal received by the ABS wheel sensors to the ABS central computer;
d. modifying the software in the existing central ABS computer to process the tire pressure sensor signals and calculate tire pressure information; and
e. displaying the calculated tire pressure information to the vehicle driver. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification