Method and monitoring unit for monitoring a tire of a motor vehicle
AssigneeContinental Automotive GmbH
InventorsAlexander Fink, Martin Griesser
Life of this patent
Estimating the term…
Abstract
A method and a monitoring unit for monitoring a tire of a vehicle record a first measured value of revolutions of a tire with a first sensor. In addition, a second measured value of the revolutions of a tire is recorded with a second sensor. Alternatively, a second measured value of a second, different measured variable of a tire can also be recorded. In a further step, the directly measured or derived measured values of a measured variable are compared and an error signal is generated if a determined deviation is greater than a predefinable tolerance value.
Claims11
A method for monitoring a tire of a vehicle, the method comprising the following steps:
- a) recording a first measured value of revolutions of the tire with a first chassis-mounted sensor;
- b) recording a second measured value of the revolutions of the tire or a second measured value of a second, different measured variable of the tire with a second sensor of a direct tire pressure monitoring system;
- c) determining a deviation by comparing the first measured value with the second measured value or comparing the second measured value with a value of the second measured variable derived from the first measured value or comparing a value of a third measured variable of the tire derived from the second measured value with a value of the third measured variable derived from the first measured value;
- and
- d) generating an error signal if the determined deviation is greater than a predefinable tolerance value.
A monitoring unit for monitoring a tire of a vehicle, the monitoring unit comprising:
- a) means for recording a first measured value of revolutions of the tire with a first chassis-mounted sensor;
- b) means for recording a second measured value of the revolutions of the tire or a second measured value of a second, different measured variable of the tire with a second sensor of a direct tire pressure monitoring system;
- c) means for comparing the first measured value with the second measured value or comparing the second measured value with a value of the second measured variable derived from the first measured value or comparing a value of a third measured variable of the tire derived from the second measured value with a value of the third measured variable derived from the first measured value;
- and
- d) means for generating an error signal if the determined deviation is greater than a predefinable tolerance value.
A monitoring unit for monitoring a tire of a vehicle, the monitoring unit comprising:
- a) a first chassis-mounted sensor configured for monitoring a tire pressure and for recording a first measured value of revolutions of the tire;
- b) a second sensor configured for directly monitoring the tire pressure and for recording a second measured value of the revolutions of the tire or a second measured value of a second, different measured variable of the tire;
- c) a device for comparing the first measured value with the second measured value or comparing the second measured value with a value of the second measured variable derived from the first measured value or comparing a value of a third measured variable of the tire derived from the second measured value with a value of the third measured variable derived from the first measured value;
- and
- d) a device for generating an error signal if the determined deviation is greater than a predefinable tolerance value.
A method for monitoring a tire of a vehicle, the method comprising the following steps:
- a) recording a first measured value of revolutions of the tire with a first chassis-mounted sensor;
- b) recording a second measured value of the revolutions of the tire or a second measured value of a second, different measured variable of the tire with a second sensor;
- c) determining a deviation by performing one or more of the following process steps:
- comparing a first time derivative of the measured values;
- comparing a second time derivative of the measured values;
- comparing a direction of change of the measured values;
- or
- correlating the measured values over a predefinable time period;
- and
- d) generating an error signal if the determined deviation is greater than a predefinable tolerance value.
Dependencies are inferred from the claim text.