Method For Automatically Calibrating The Power Of An Activation Signal Of At Least One Sensor And Device For Implementing Said Method
AssigneeAteq
InventorGuillaume Ouvry
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Abstract
The invention relates to a method (100, 100′) for automatically calibrating the power (Pi) of an activation signal (Si) of at least one pressure sensor for a tyre pressure monitoring system of a motor vehicle (5), said sensor having an identification number (Id). The method includes determination (Sdet) of the maximum transmission power Pmax of the non-activation signal of said sensor and of the minimum transmission power Pmin of the activation signal of said sensor. The method includes storage (Smem) in memory of said maximum transmission power Pmax and minimum transmission power Pmin, when a difference δ between said powers Pmax and Pmin attains a value equal to or less than a predetermined value δ0.
Claims18
A method for automatically calibrating a power (Pi) of an activation signal (Si) of at least one pressure sensor for a tyre pressure monitoring system (7) of a motor vehicle, said at least one pressure sensor having an identification number and comprising at least one data transmission and receiving module, said method comprising:
- determining (Sdet) of a maximum transmission power Pmax of a non-activation signal of said at least one pressure sensor and a minimum transmission power Pmin of the activation signal of said at least one pressure sensor;
- storing (Smem) in memory of said maximum transmission power Pmax and said minimum transmission power Pmin, when a difference δ between said maximum transmission power Pmax and said minimum transmission power Pmin attains a value equal to or less than a predetermined value δθ.
A device for activating at least one pressure sensor for a tyre pressure monitoring system of a motor vehicle, said device comprising:
- at least one sensor activation module;
- a module configured for receiving signals transmitted from the at least one pressure sensor;
- an electronic entity configured to at least one of store or process information conveyed by the signals transmitted by said at least one pressure sensor;
- and
- a module configured for communicating with a remote electronic entity of the motor vehicle, in order to transmit the information conveyed by the signals received,
- wherein said device is configured to determine a maximum transmission power Pmax of a non-activation signal of said at least one sensor and a minimum transmission power Pmin of a signal resulting in the activation of said at least one sensor,
- wherein said device is configured to stop the determination of said maximum transmission power Pmax and minimum transmission power Pmin when a difference δ between said maximum transmission power Pmax and the minimum transmission power Pmin attains a value equal to or less than a predetermined value δθ.
Dependencies are inferred from the claim text.