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US 5,299,131 AGranted
Method of correcting the rotating speed of vehicle wheels sensed by wheel sensors
AssigneeRobert Bosch GmbH
InventorsHardy Haas, Manfred Meissner, Alfred Sigl, Andreas Schlichenmaier, Ulrich Schwabe, Hans Guttler, Norbert Leibbrand, Jurgen Brauninger, Dieter Worner, Jochen Schafer, Frank Bedrna
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Abstract
Vehicle speed is measured during slip-free travel of the wheels and compared with the wheel speeds to determine correction values which correct for different wheel diameters. The correction values are used to continuously correct the wheel speeds.
Claims26
Method for correcting the rotating speed of vehicle wheels, said method comprising the following steps:
- measuring the rotating speed of each vehicle wheel,
- determining when there is no slippage of said vehicle wheels,
- determining the difference in speed between each two vehicle wheels when there is no slippage of said vehicle wheels,
- determining the minimum said difference in speed,
- determining the average speed of the two wheels which have said minimum difference in speed, wheels other than said two wheels which have said difference in speed being remaining wheels,
- determining correction values for each said remaining wheel based on the speed of each said remaining wheel and said average speed, and
- correcting the measured speed of each said remaining wheel based on respective said correction values.
4 more elements
Dependencies are inferred from the claim text.