TIRE PRESSURE DEVIATION DETECTION FOR A VEHICLE TIRE
1 Assignment
0 Petitions
Accused Products
Abstract
A method, system and computer program product for detecting a tire pressure deviation in a tire of a vehicle by determining tire pressure indicating data indicative of a tire pressure condition of the tire and determining tire pressure deviation data indicative of a tire pressure deviation in the tire.
18 Citations
43 Claims
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1-37. -37. (canceled)
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38. An indirect tire pressure monitoring method of detecting tire pressure deviation in tires of a vehicle, comprising:
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determining tire pressure indicating data indicative of a tire pressure condition of at least one tire of a vehicle; and determining tire pressure deviation data indicative of a tire pressure deviation condition in the at least one tire on the basis of the tire pressure indicating data; characterized by; obtaining at least one vehicle data provided by a controlling and/or monitoring device of the vehicle; determining temperature compensation data on the basis of the at least one vehicle data; and temperature compensating on the basis of the temperature compensation data such that temperature compensated tire pressure deviation data is achieved; characterized by; pausing at least one of the above in the case the temperature compensation data indicate a temperature condition outside a predefined range and resuming the at least one of the above in the case the temperature compensation data indicate a temperature condition back in the predefined range. - View Dependent Claims (39)
wherein determining e pressure deviation data comprises determining individual tire pressure deviation data for each of the at least one tire; - and
temperature compensating comprises temperature compensating with respect to each of the individual tire pressure deviation data on the basis of the temperature compensation data such that temperature compensated tire pressure deviation data for each of the at least one tire is achieved; and
/orwherein determining tire pressure deviation data comprises determining relative tire pressure deviation data for at least two tires of the vehicle; and temperature compensating comprises temperature compensating with respect to each of the relative tire pressure deviation data on the basis of the temperature compensation data to achieve temperature compensated tire pressure deviation data for the at least two tires; and
/orwherein determining temperature compensation data comprises at least one step of determining specific temperature compensation data for at least one predefined temperature condition; and temperature compensating comprises temperature compensating the tire pressure deviation data on the basis of the specific temperature compensation data, wherein temperature compensating preferably comprises temperature compensating the tire pressure deviation data on the basis of at least one of a weighting function, a multiplicative function, a non-symmetric function and a temperature-related adaptive rate; and
/orwherein the at least one vehicle data includes at least one of vehicle data indicative of ambient temperature; vehicle data indicative of a temperature of an engine of the vehicle; vehicle data indicative of an engine torque of an engine of the vehicle; vehicle data indicative of a torque acting on the at least one tire; vehicle data indicative of a engine speed of an engine of the vehicle; vehicle data indicative of a yaw rate of the vehicle; vehicle data indicative of a speed of the vehicle; vehicle data indicative of at least one of a lateral acceleration and a longitudinal acceleration of the vehicle; vehicle data indicative of a steering wheel angle of a steering wheel of the vehicle; vehicle data indicative of a driving condition of the vehicle, particularly a braking condition; vehicle data indicative that a gear shift of the vehicle is in progress; vehicle data indicative that a braking system of the vehicle is operating; vehicle data indicative of brake pressure; and vehicle data indicative that at least one active control device of the vehicle is active; and
/orwherein determining the temperature compensation data comprises at least one of; determining an internal tire temperature for the at least one tire determining a wheel slip effective for the at least one tire; determining a gear ratio effective for the at least one tire; determining a traction force acting on the at least one tire; determining a road condition affecting the at least one pressure data; determining whether a snow chain is arranged on the at least one tire; determining a curve driving condition of the vehicle; and
/orwherein temperature compensating comprises temperature compensating the at least one vehicle data based on the temperature compensation data to compensate temperature influence on the at least one vehicle data, wherein temperature compensating the at least one vehicle data preferably comprises temperature compensating at least one device of the vehicle providing a corresponding one of the at least one vehicle data, wherein temperature compensating the at least one vehicle data providing device preferably comprises temperature compensating at least one of; means comprising at least one temperature sensor; means comprising at least one yaw rate sensor; means comprising at least one torque sensor; means comprising at least one speed sensor; and means comprising at least one acceleration sensor; and
/orwherein temperature compensating comprises temperature compensating the tire pressure indicating data on the basis of the temperature compensation data, wherein temperature compensating tire pressure indicating data is preferably performed by using rules obtained from physical knowledge on temperature influence on pressure data indicative of a pressure condition of a tire and/or empirical knowledge on temperature influence on pressure data indicative of a pressure condition of a tire; and
/orwherein temperature compensating comprises temperature compensating the tire pressure deviation data itself on the basis of the temperature compensation data; and
/orfurther comprising comparing the tire pressure deviation data with deviation threshold data to determine whether the tire pressure deviation exceeds at least one predetermined deviation-related threshold, preferably further comprising correcting the deviation threshold data on the basis of the temperature compensation data; and
/orfurther comprising controlling at least one of determining the tire pressure indicating data; determining the tire pressure deviation data; obtaining the at least one vehicle data; and determining the temperature compensation data; on the basis of the temperature compensation data such that a temperature compensation is achieved.
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40. An indirect tire pressure monitoring system o detecting tire pressure deviation in tires of a vehicle, comprising:
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means for determining tire pressure indicating data indicative of a tire pressure condition of at least one tire of a vehicle; and means for determining tire pressure deviation data indicative of a tire pressure deviation condition in the at least one tire on the basis of the tire pressure indicating data; characterized by; means for obtaining at least one vehicle data provided by a controlling and/or monitoring device of the vehicle; means for determining temperature compensation data on the basis of the at least one vehicle data; and means for temperature compensating on the basis of the temperature compensation data such that temperature compensated tire pressure deviation data is achieved, characterized by means for disabling at least one of the above means of claim in the case the temperature compensation data indicate a temperature condition outside a predefined range and enabling the at least one of the above means in the case the temperature compensation data indicate a temperature condition falling back in the predefined range. - View Dependent Claims (41)
wherein the means for determining tire pressure deviation data is adapted to determine individual tire pressure deviation data for each of the at least one tire; - and
the means for temperature compensating adapted to temperature compensate with respect to each of the individual tire pressure deviation data on the basis of the temperature compensation data to achieve temperature compensated tire pressure deviation data for each of the at least one tire; and
/orwherein the means for determining tire pressure deviation data is adapted to determine relative tire pressure deviation data for at least two tires of the vehicle; and the means for temperature compensating is adapted to temperature compensate with respect to each relative tire pressure deviation data on the basis of the temperature compensation data to achieve temperature compensated tire pressure deviation data for the at least two tires together; and
/orwherein the means for determining temperature compensation data is adapted to determine specific temperature compensation data for at least one predefined temperature condition; and the means for temperature compensating is adapted to temperature compensate the tire pressure deviation data on the basis of the specific temperature compensation data, preferably wherein the means for temperature compensating is adapted to temperature compensate the tire pressure deviation data on the basis of at least one of a weighting function, a multiplicative function, a non-symmetric function and a temperature-related adaptive rate; and
/orfurther including at least one input for obtaining, as the least one vehicle data, at least one of vehicle data indicative of ambient temperature; vehicle data indicative of a temperature of an engine of the vehicle; vehicle data indicative of an engine torque of an engine of the vehicle; vehicle data indicative of a torque acting on the at least one tire; vehicle data indicative of a engine speed of an engine of the vehicle; vehicle data indicative of a yaw rate of the vehicle; vehicle data indicative of a speed of the vehicle; vehicle data indicative of at least one of a lateral acceleration and a longitudinal acceleration of the vehicle; vehicle data indicative of a steering wheel angle of a steering wheel of the vehicle; vehicle data indicative of a driving condition of the vehicle, particularly a braking condition; vehicle data indicative that a gear shift of the vehicle is in progress; vehicle data indicative that a braking system of the vehicle is operating; vehicle data indicative of brake pressure; and vehicle data indicative that at least one active control device of the vehicle is active; and
/orwherein the means for determining the temperature compensation data is adapted to at least one of; determine an internal tire temperature for the at least one tire; determine a wheel slip effective for the at least one tire; determine a gear ratio effective for the at least one tire; determine a traction force acting on the at least one tire; determine a road condition affecting the at least one pressure data; determine whether a snow chain is arranged on the at least one tire; and determine a curve driving condition of the vehicle; and
/orwherein the means for temperature compensating is adapted to temperature compensate the at least one vehicle data based on the temperature compensation data to compensate temperature influence on the at least one vehicle data, wherein the means for temperature compensating the at least one vehicle data is preferably adapted to temperature compensate at least one device of the vehicle providing a corresponding one of the at least one vehicle data, wherein the means for temperature compensating the at least one vehicle data providing device is preferably adapted to temperature compensate at least one of; means comprising at least one temperature sensor; means comprising at least one yaw rate sensor; means comprising at least one torque sensor; means comprising at least one speed sensor; and means comprising at least one acceleration sensor; and
/orwherein the means for temperature compensating is adapted to temperature compensate the tire pressure indicating data on the basis of the temperature compensation data, wherein the means for correcting the tire pressure indicating data is preferably adapted to correct the tire pressure indicating data by using rules obtained from physical knowledge on temperature influence on pressure data indicative of a pressure condition of a tire and/or empirical knowledge on temperature influence on pressure data indicative of a pressure condition of a tire; and
/orwherein the means for temperature compensating is adapted to temperature compensate the tire pressure deviation data itself on the basis of the temperature compensation data; and
/orfurther comprising means for comparing the tire pressure deviation data with deviation threshold data and for determining based on the comparison result whether the tire pressure deviation condition exceeds at least one predetermined deviation-related threshold, further comprising means for correcting the deviation threshold data on the basis of the temperature compensation data; and
/orfurther comprising correction control means for at least partially controlling at least one of the the means for determining the tire pressure indicating data; the means for determining the tire pressure deviation data; the means for obtaining the at least one vehicle data; and the means for determining the temperature compensation data; on the basis of the temperature compensation data in order to achieve temperature compensation with respect thereto.
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42. A computer program product for an indirect tire pressure monitoring for detecting tire pressure deviation in tires of a vehicle, the computer program product comprising program code for carrying out, when executed on a processing system:
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determining tire pressure indicating data indicative of a tire pressure condition of at least one of a vehicle; and determining tire pressure deviation data indicative of a tire pressure deviation condition in the at least one tire on the basis of the tire pressure indicating data; characterized by; obtaining at least one vehicle data provided by a controlling and/or monitoring device of the vehicle; determining temperature compensation data on the basis of the at least one vehicle data; and temperature compensating on the basis of the temperature compensation data such that temperature compensated tire pressure deviation data is achieved, characterized by pausing at least one of the above in the case the temperature compensation data indicate a temperature condition outside a predefined range and resuming the at least one of the above in the case the temperature compensation data indicate a temperature condition back in the predefined range. - View Dependent Claims (43)
wherein determining tire pressure deviation data comprises determining individual tire pressure deviation data for each of the at least one tire; - and
temperature compensating comprises temperature compensating with respect to each of the individual tire pressure deviation data on the basis of the temperature compensation data such that temperature compensated tire pressure deviation data for each of the at least one tire is achieved; and
/orwherein determining tire pressure deviation data comprises determining relative tire pressure deviation data for at least two tires of the vehicle; and temperature compensating comprises temperature compensating with respect to each of the relative tire pressure deviation data on the basis of the temperature compensation data to achieve temperature compensated tire pressure deviation data for the at least two tires; and
/orwherein determining temperature compensation data comprises at least one step of determining specific temperature compensation data for at least one predefined temperature condition; and temperature compensating comprises temperature compensating the tire pressure deviation data on the basis of the specific temperature compensation data, wherein temperature compensating preferably comprises temperature compensating the tire pressure deviation data on the basis of at least one of a weighting function, a multiplicative function, a non-symmetric function and a temperature-related adaptive rate; and
/orwherein the at least one vehicle data includes at least one of vehicle data indicative of ambient temperature; vehicle data indicative of a temperature of an engine of the vehicle; vehicle data indicative of an engine torque of an engine of the vehicle; vehicle data indicative of a torque acting on the at least one tire; vehicle data indicative of a engine speed of an engine of the vehicle; vehicle data indicative of a yaw rate of the vehicle; vehicle data indicative of a speed of the vehicle; vehicle data indicative of at least one of a lateral acceleration and a longitudinal acceleration of the vehicle; vehicle data indicative of a steering wheel angle of a steering wheel of the vehicle; vehicle data indicative of a driving condition of the vehicle, particularly a braking condition; vehicle data indicative that a gear shift of the vehicle is in progress; vehicle data indicative that a braking system of the vehicle is operating; vehicle data indicative of brake pressure; and vehicle data indicative that at least one active control device of the vehicle is active; and
/orwherein determining the temperature compensation data comprises at least one of; determining an internal tire temperature for the at least one tire determining a wheel slip effective for the at least one tire; determining a gear ratio effective for the at least one tire; determining a traction force acting on the at least one tire; determining a road condition affecting the at least one pressure data; determining whether a snow chain is arranged on the at least one tire; determining a curve driving condition of the vehicle; and
/orwherein temperature compensating comprises temperature compensating the at least one vehicle data based on the temperature compensation data to compensate temperature influence on the at least one vehicle data, wherein temperature compensating the at least one vehicle data preferably comprises temperature compensating at least one device of the vehicle providing a corresponding one of the at least one vehicle data, wherein temperature compensating the at least one vehicle data providing device preferably comprises temperature compensating at least one of; means comprising at least one temperature sensor; means comprising at least one yaw rate sensor; means comprising at least one torque sensor; means comprising at least one speed sensor; and means comprising at least one acceleration sensor; and
/orwherein temperature compensating comprises temperature compensating the tire pressure indicating data on the basis of the temperature compensation data, wherein temperature compensating tire pressure indicating data is preferably performed by using rules obtained from physical knowledge on temperature influence on pressure data indicative of a pressure condition of a tire and/or empirical knowledge on temperature influence on pressure data indicative of a pressure condition of a tire; and
/orwherein temperature compensating comprises temperature compensating the tire pressure deviation data itself on the basis of the temperature compensation data; and
/orfurther comprising comparing the tire pressure deviation data with deviation threshold data to determine whether the tire pressure deviation exceeds at least one predetermined deviation-related threshold, preferably further comprising correcting the deviation threshold data on the basis of the temperature compensation data; and
/orfurther comprising controlling at least one of determining the tire pressure indicating data; determining the tire pressure deviation data; obtaining the at least one vehicle data; and determining the temperature compensation data; on the basis of the temperature compensation data such that a temperature compensation is achieved; and/or being stored on a computer-readable storage medium or in a computer-readable storage device.
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Specification