Method for analyzing the driving behavior of motor vehicles
AssigneeAVL List GmbH
InventorsPeter Schöggl, Helmut List
Life of this patent
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Abstract
The present invention relates to a method for analyzing the driving behavior of motor vehicles on a roller type test stand, with the following steps: performance of a predetermined operating cycle in a motor vehicle which is disposed on a roller type test stand; determination of a first longitudinal acceleration signal from a speed signal which is tapped from the power train of the motor vehicle or the roller type test stand; determination of a second longitudinal acceleration signal by an acceleration sensor attached to the motor vehicle; superposition of the first and second longitudinal acceleration signal into a composite signal; determination of a parameter representative of the driveability of the motor vehicle from the composite signal.
Claims11
A method for determining the drivability of a motor vehicle having a power train which comprises the steps of:
- positioning the motor vehicle on a roller test stand and operating the power train of the motor vehicle according to a predetermined operating cycle,
- determining speeds of the power train or rollers of the test stand and determining a first longitudinal acceleration signal from said speeds,
- determining an acceleration of the vehicle and providing a second longitudinal acceleration signal therefrom,
- superimposing said first and second acceleration signals to provide a composite signal, and
- determining a parameter representative of the drivability of the motor vehicle from said composite signal.
An apparatus for the analysis of the drivability of a motor vehicle having a power train when the motor vehicle is positioned on a roller type test stand, including a first sensor for detecting a speed signal from the power train of the motor vehicle or the roller type test stand, an acceleration sensor for detecting the longitudinal acceleration of the motor vehicle, and an evaluation device which is connected with the first sensor and with the acceleration sensor and which is arranged so as to further process signals of the sensors and superimpose the same into a composite signal in order to calculate from said composite signal a parameter representative of the driveability of the motor vehicle.
Dependencies are inferred from the claim text.