Windshield wiper and control system

Details Windshield wiper and control system Windshield wiper and control system

1988-12-19

1989-09-12

Ro, Bentsu

Electricity: motive power systems

Periodic, repetitious or successive operations control of...

318DIG2, B60S 108

Patent

active

048663573

ABSTRACT:
A windshield wiper system for continuously controlling position and velocity of a wiper blade as it sweeps across the windshield. The blade is coupled directly to a motor having an encoder for continuously generating actual position pulses related to blade movement across the windshield. Desired position pulses are continuously generated which are related to desired blade position during the sweep. Both desired and actual position pulses are accumulated or counted such that desired and actual blade position are continuously known during the sweep. An error signal is generated by comparing accumulated desired and actual position pulses. Motor speed is corrected in response to the error signal for continuously correcting blade position and velocity.

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patent: 4705997 (1987-11-01), Juzswik
patent: 4742280 (1988-05-01), Ishikawa et al.

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