Method for monitoring the tire pressure on vehicles
First Claim
1. Method for operating a wheel electronics for monitoring and wireless signaling a pressure or a pressure change in pneumatic tires of wheels on vehicles, wherein the pressure prevailing in the pneumatic tire is measured and electric pressure signals are derived from such measurements, and an information signal containing information on the pressure or on a pressure change is transmitted, the information signal being intended to be received by a receiver provided in or on the vehicle, the wheel electronics being set by a first control signal, which is transmitted in wireless fashion from outside the wheel electronics, to a first mode of operation in which the prevailing pressure or a pressure change is measured and signaled in response to the receipt of an interrogation signal generated outside the wheel electronics and transmitted to the wheel electronics in wireless fashion, and, if the wheel electronics do not receive another interrogation signal within a predetermined period of time after receipt of an interrogation signal, the wheel electronics adopting itself a second mode of operation in which the pressure or a pressure change is measured repeatedly and is transmitted at a transmission rate which is firmly preset or is variable and which is established in the wheel electronics for that second mode of operation.
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Accused Products
Abstract
The invention describes a method for operating a device for monitoring and wireless signalling a pressure or a pressure change in pneumatic tires of wheels on vehicles, the device being hereinafter referred to as wheel electronics, wherein the pressure prevailing in the pneumatic tire is measured and electric pressure signals are derived from such measurements, and an information signal containing information on the pressure or on a pressure change is transmitted, the information signal being intended to be received by a receiver provided in or on the vehicle, the wheel electronics being set by a first control signal, which is transmitted in wireless fashion from outside the wheel electronics, to a first mode of operation in which the prevailing pressure or a pressure change is measured and signalled in response to the receipt of an interrogation signal generated outside the wheel electronics and transmitted to the wheel electronics in wireless fashion, and, if the wheel electronics do not receive another interrogation signal within a predetermined period of time after receipt of an interrogation signal, the wheel electronics adopting itself a second mode of operation in which the pressure or a pressure change is measured repeatedly and is transmitted at a transmission rate which is firmly preset or is variable and which is established in the wheel electronics for that second mode of operation.
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Citations
20 Claims
- 1. Method for operating a wheel electronics for monitoring and wireless signaling a pressure or a pressure change in pneumatic tires of wheels on vehicles, wherein the pressure prevailing in the pneumatic tire is measured and electric pressure signals are derived from such measurements, and an information signal containing information on the pressure or on a pressure change is transmitted, the information signal being intended to be received by a receiver provided in or on the vehicle, the wheel electronics being set by a first control signal, which is transmitted in wireless fashion from outside the wheel electronics, to a first mode of operation in which the prevailing pressure or a pressure change is measured and signaled in response to the receipt of an interrogation signal generated outside the wheel electronics and transmitted to the wheel electronics in wireless fashion, and, if the wheel electronics do not receive another interrogation signal within a predetermined period of time after receipt of an interrogation signal, the wheel electronics adopting itself a second mode of operation in which the pressure or a pressure change is measured repeatedly and is transmitted at a transmission rate which is firmly preset or is variable and which is established in the wheel electronics for that second mode of operation.
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16. Method for operating a wheel electronics device for monitoring and wireless signaling of a pressure or a pressure change in pneumatic tires of wheels on vehicles, comprising the steps of:
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receiving wirelessly a first control signal generated outside the wheel electronics device, setting the wheel electronics device to a first mode of operation in which the prevailing pressure or a pressure change is measured and signaled in response to an interrogation signal, receiving wirelessly the interrogation signal generated outside the wheel electronics device, measuring the pressure prevailing in the pneumatic tire or a pressure change, deriving an electric pressure signal from the pressure measurement, transmitting an information signal containing information on the pressure or on a pressure change, the information signal being intended to be received by a receiver provided in or on the vehicle, and if the wheel electronics device does not receive another interrogation signal within a predetermined time after receiving the interrogation signal, setting automatically the wheel electronics device to a second mode of operation in which the pressure or the pressure change is measured repeatedly and is transmitted at a firm or variable transmission rate. - View Dependent Claims (17, 18, 19, 20)
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Specification