Process for the early recognition of hydroplaning of a vehicle t

Details Process for the early recognition of hydroplaning of a vehicle t Process for the early recognition of hydroplaning of a vehicle t

1996-11-25

1998-03-03

Chilcot, Richard

Measuring and testing

By abrasion, milling, rubbing, or scuffing

Wheel tread, tire, track, or roadway

73 9, 73146, 180271, 280757, 340438, 340441, B60Q 100

Patent

active

057237689

ABSTRACT:
The invention provides a process for the advance recognition of the hydroplaning of a vehicle tire on a wet road, in which the rotational speed of the wheel carrying the tire is sensed by a rotational speed sensor and the frequency spectrum of the rotational wheel speed is evaluated. According to the invention, in the frequency range above 20 Hz, the natural resonance behavior of the rotational tire vibrations is evaluated continuously, and a conclusion on hydroplaning of the tire is drawn from detuning of the rotatory natural frequencies.

REFERENCES:
patent: 5032821 (1991-07-01), Domanico et al.
patent: 5273315 (1993-12-01), Debus
patent: 5350035 (1994-09-01), Bodier et al.
patent: 5424714 (1995-06-01), Kin et al.
patent: 5481455 (1996-01-01), Iwata et al.
patent: 5502433 (1996-03-01), Breuer et al.
patent: 5532678 (1996-07-01), Kin et al.

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