Boots – shoes – and leggings
Patent
1992-10-22
1994-04-05
Harvey, Jack B.
Boots, shoes, and leggings
36442602, 73488, 324160, 324178, G01P 900
Patent
active
053011309
ABSTRACT:
A system and method for determining the speed of a vehicle independent of angular wheel rotation rates is provided. The system generates time-varying signals corresponding to the vertical acceleration of the front and rear wheels. The front and rear wheel signals include corresponding perturbations caused by the wheels crossing road disturbances such as bumps. A time lag occurs between perturbations in the rear wheel signal and corresponding perturbations in the front wheel signal. An adaptive algorithm correlates the signals for various time delay values until a time delay value is determined which maximizes the correlation between the two signals. The calculated time delay value corresponds to the actual time lag between the front and rear wheels occurring before the rear wheels encounter a road disturbance previously encountered by the front wheels. Thus, the invention provides a determination of the actual speed of the vehicle determined independently from the angular rotation rates of the wheels.
REFERENCES:
patent: 4135155 (1979-01-01), Kehl et al.
patent: 4333146 (1982-06-01), Sinha et al.
patent: 4770438 (1988-09-01), Sugasawa et al.
patent: 4989923 (1991-02-01), Lee et al.
patent: 5058019 (1991-10-01), Litkouhi
patent: 5157596 (1992-10-01), Alcone
patent: 5235529 (1993-08-01), Hanson et al.
Adaptive Noise Cancelling: Principles and Applications, B. Widrow et al., Proceedings of the IEEE, vol. 63, No. 12, Dec. 1975.
Adaptive Estimation of Time Delays in Sampled Data Systems, D. Etter, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 3, Jun. 1981.
Alcone Jerry M.
Jeter James W.
Denson-Low W. K.
Gortler H. P.
Harvey Jack B.
Hughes Aircraft Company
Miller Craig Steven
LandOfFree
Absoulte velocity sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Absoulte velocity sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absoulte velocity sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-517112