Hydroplaning detector apparatus

Details Hydroplaning detector apparatus Hydroplaning detector apparatus

1995-02-28

1996-07-02

Swarthout, Brent A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340439, 340444, 340441, 180197, 180271, 36442601, 36442602, B60Q 100

Patent

active

055326781

ABSTRACT:
A hydroplaning detection system comprising AM specific frequency component extraction AM, which comprises a band-pass filter for extracting signal components PS in a main frequency band corresponding to the wheel rotation speed or the vehicle speed from wheel rotation speed signals, and a band-pass filters for respectively extracting signal components PL in other frequency bands, and AM determining the occurrence of hydroplaning based on the ratio PL/PS between the signal components PS in the main frequency band and the signal components PL in other frequency bands.

REFERENCES:
patent: 5032821 (1991-07-01), Domanico et al.
patent: 5220307 (1993-06-01), May et al.
patent: 5350035 (1994-09-01), Bodier et al.
patent: 5424714 (1995-06-01), Kin et al.
patent: 5481455 (1996-01-01), Iwata et al.

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