Unit for measuring and system for monitoring tire pressure in tires of the extended mobility or other type
View Patent ↗Measuring unit with at least a pressure sensor and signal transmission means, intended to be fitted on a tire/wheel assembly, characterized in that it comprises a logic indicator with two states, active and inactive, and in that the logic indicator becomes active each time the pressure measured by the pressure sensor is below a given threshold, close to zero.
1. A measuring unit to be fitted on a tire/wheel assembly installed in a vehicle, comprising:
a pressure sensor;
a signal transmitter; and
a logic indicator with two states: active and inactive,
wherein the logic indicator enters the active state each time the pressure sensor measures a tire pressure below a given threshold,
wherein the given threshold is close to zero, indicating that the tire pressure is close to atmospheric pressure,
wherein, when the logic indicator is in the active state, a signal is transmitted by the signal transmitter, and
wherein the logic indicator is operational when the vehicle is started up.
2. The measuring unit according to claim 1 , wherein the given threshold is equal to 100 mbar.
3. The measuring unit according to claim 1 , wherein the given threshold is equal to 200 mbar.
4. The measuring unit according to claim 1 , wherein the signal transmitter transmits an alert message to a central unit when the logic indicator is in the active state.
5. The measuring unit according to claim 1 , wherein the logic indicator is returned to the inactive state from the active state by a diagnostic tool.
6. The measuring unit according to claim 1 , further comprising a memory for storing an additional code dependent on a type of tire of the tire/wheel assembly, wherein the signal transmitter transmits the additional code to a central unit when the logic indicator is in the active state.
7. A system for monitoring pressure in a tire of a vehicle, the system comprising:
a central unit with a receiver and a processor, and
a measuring unit that includes:
a pressure sensor,
a signal transmitter, and
a logic indicator with two states: active and inactive,
wherein the logic indicator enters the active state each time the pressure sensor measures a tire pressure below a given threshold,
wherein the given threshold is close to zero, indicating that the tire pressure is close to atmospheric pressure,
wherein, when the logic indicator is in the active state, a signal is transmitted by the signal transmitter to the central unit, and
wherein the logic indicator is operational when the vehicle is started up.
8. The system according to claim 7 ,
wherein the processor of the central unit includes a plurality of data processing programs for processing data transmitted by the measuring unit, and
wherein each data processing program is suited to a given type of tire.
9. The system according to claim 7 , wherein the central unit receives a signal of an additional code transmitted by a diagnostic tool, the additional code corresponding to a type of the tire of the vehicle.
10. System according to claim 7 , wherein the measuring unit transmits a signal of an additional code to the central unit, the additional code corresponding to a type of the tire of the vehicle.
11. The system according to claim 10 , wherein the additional code is stored by the measuring unit and is modifiable by a diagnostic tool.
12. The system according to claim 9 , wherein a type of the tire is chosen from a group of tires that includes extended mobility tires and standard tires.
13. The system according to claim 9 , wherein the type of the tire is chosen from a group of tires that includes “summer” tires and “winter” tires.
14. The system according to claim 10 , wherein a type of the tire is chosen from a group of tires that includes extended mobility tires and standard tires.
15. The system according to claim 10 , wherein the type of the tire is chosen from a group of tires that includes “summer” tires and “winter” tires.