Electricity: motive power systems – Periodic – repetitious or successive operations control of... – Variable periods or intervals between controlling operations
Patent
1992-07-20
1993-08-31
Ro, Bentsu
Electricity: motive power systems
Periodic, repetitious or successive operations control of...
Variable periods or intervals between controlling operations
318DIG2, B60S 108
Patent
active
052412482
ABSTRACT:
A wiper controller comprises a power source, a wiper drive mechanism, a power storage device having one potential detecting point, a charge circuit connected between the storage device and the power source, for charging the storage device. A discharge circuit is provided in parallel with the storage device for discharging the storage device. A drive control device controls the wiper through the drive mechanism. Either the charge circuit or the discharge circuit includes a switch for disconnecting that circuit. The other circuit includes a resistor for determining a corresponding charge or discharge time and for respectively charging or discharging the storage device. The present wiper controller further includes a switch control device for controlling the switch. The drive control device allows the wiper to reciprocate, when the potential at the detecting point reaches a predetermined value. The switch control device sets the switch on for a predetermined period of time after one reciprocative action of the wiper is completed, so that the battery is charged (or discharged) to initialize the potential at the detecting point.
REFERENCES:
patent: 3564374 (1971-02-01), Kearns
patent: 3573584 (1971-04-01), Kearns
patent: 3581178 (1971-05-01), Kearns
patent: 3614573 (1971-10-01), Rieman
patent: 3633085 (1972-01-01), Rouvre
patent: 3681620 (1972-08-01), Hoge
patent: 4689535 (1987-08-01), Tsunoda et al.
Asmo Co. Ltd.
Ro Bentsu
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