Abstract: A method and apparatus for diagnosing and monitoring vehicles, vehicle components, routes and route components, wherein at least one first sensor is used to perform measurements and at least one computing unit is used to effect signal processing, where the at least one computing unit is supplied with at least measured first signals, at least one first characteristic value is formed from the at least first signals, the at least one first characteristic value or at least one first characteristic value combination is classified via at least one first statistical model, or a prediction is performed, and where at least one technical first condition indicator for at least one first vehicle component or at least one route component is determined, such that safe detection of faults, damage, excess wear, etc., and effective, condition-oriented maintenance of vehicles and infrastructures are achieved.

Abstract: A method for ascertaining a geometry of a wheel for vehicles, in particular rail vehicles, wherein at least one first sensor is used to ascertain vertical accelerations of at least one first wheel, and travel speeds are processed and wherein amplitude spectra are formed based vertical acceleration signals that characterize the oscillatory behavior of the at least one first wheel, wherein an amplitude sum spectrum is formed from the amplitude spectra, at least one wheel harmonic is determined from at least one frequency of the amplitude sum spectrum that is assigned to the amplitude maximum of the amplitude sum spectrum, and the wheel geometry is ascertained from a standard driving speed, which defines a characteristic vehicle operating behavior, and from the at least one wheel harmonic such that a dedicated rotational speed sensor can be omitted.

Abstract: A method and device for the diagnosing and monitoring vehicle components, wherein measurements with respect to a first measuring point, a second measuring point, a third measuring point and a fourth measuring point are performed and a first measured value set, a second measured value set, a third measured value set and a fourth measured value set are formed, where a reference value set is determined with respect to a reference point via the first measured value set, the second measured value set and the third measured value set, where a test value set is formed with respect to the fourth measuring point via the reference value set, and where a fault in or damage to the fourth sensor is detected by comparing the test value set with the fourth measured value set such that a high level of availability when used by a vehicle is achieved.

Abstract: Method for detecting sensor errors, wherein measurements are taken, discharge time data with a first discharge time constant is read out from a data storage unit of the sensor and corresponding measurement signals as well as the discharge time data are transmitted to a computing unit, where a signal processing, a signal evaluation and a data evaluation occur in the computing unit and filtered signals are formed by filtering the measurement signals, where parameter values of a discharge function are determined via a logarithmic function of the filtered signals, a second discharge time constant is determined from the discharge function and where the first discharge time constant and the second discharge time constant are compared to detect errors, faults or damage of the sensor such that the influences of sensor errors on the measurements can be reduced.

Abstract: A method and apparatus for diagnosing and monitoring vehicles, vehicle components, routes and route components, wherein at least one first sensor is used to perform measurements and at least one computing unit is used to effect signal processing, where the at least one computing unit is supplied with at least measured first signals, at least one first characteristic value is formed from the at least first signals, the at least one first characteristic value or at least one first characteristic value combination is classified via at least one first statistical model, or a prediction is performed, and where at least one technical first condition indicator for at least one first vehicle component or at least one route component is determined, such that safe detection of faults, damage, excess wear, etc., and effective, condition--oriented maintenance of vehicles and infrastructures are achieved.

Abstract: Method for detecting sensor errors, wherein measurements are taken, discharge time data with a first discharge time constant is read out from a data storage unit of the sensor and corresponding measurement signals as well as the discharge time data are transmitted to a computing unit, where a signal processing, a signal evaluation and a data evaluation occur in the computing unit and filtered signals are formed by filtering the measurement signals, where parameter values of a discharge function are determined via a logarithmic function of the filtered signals, a second discharge time constant is determined from the discharge function and where the first discharge time constant and the second discharge time constant are compared to detect errors, faults or damage of the sensor such that the influences of sensor errors on the measurements can be reduced.

Abstract: A method and device for the diagnosing and monitoring vehicle components, wherein measurements with respect to a first measuring point, a second measuring point, a third measuring point and a fourth measuring point are performed and a first measured value set, a second measured value set, a third measured value set and a fourth measured value set are formed, where a reference value set is determined with respect to a reference point via the first measured value set, the second measured value set and the third measured value set, where a test value set is formed with respect to the fourth measuring point via the reference value set, and where a fault in or damage to the fourth sensor is detected by comparing the test value set with the fourth measured value set such that a high level of availability when used by a vehicle is achieved.