Power steering direction sensor

Details Power steering direction sensor Power steering direction sensor

1982-06-07

1983-01-04

Blix, Trygve M.

Ships

Steering mechanism

Remote control steering excluding manual operation

244236, 310318, 180 791, B63H 2500

Patent

active

043667686

ABSTRACT:
A plastic material, preferably polyvinylidene fluoride (PVDF) film, made highly piezoelectric by known methods, is placed in a sensor unit structure wherein pressure is exerted against the piezoelectric film by means of rotation of the steering wheel of the boat or vehicle to thereby cause the piezoelectric film to generate electric signals which are used in controlling the rpm of a low-inertia, instantaneously reversible steering power assist motor. The rpm of the motor is substantially proportional to the input electric signals, which, in turn, are determined by, and responsive to, the degrees of rotation and speed of rotation of the steering wheel. The direction of rotation of the steering wheel determines the direction of steering assist, i.e., to the left or right. Available torque of the motor however is substantially inversely proportional to rpm of the engine propelling the boat or vehicle.

REFERENCES:
patent: 2164638 (1939-07-01), Broeze et al.
patent: 2848056 (1958-08-01), Herbenar
patent: 3167667 (1965-01-01), Lukso
patent: 3578270 (1971-05-01), Ellis
patent: 4046005 (1977-09-01), Goroski
"Electromotional Device Using PVF.sub.2 Multilayer Bimorph", by Toda et al., The Transactions of the IECE of Japan, vol. E 61, No. 7, Jul. 1978.

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