Electricity: motive power systems – Periodic – repetitious or successive operations control of... – Variable periods or intervals between controlling operations
Patent
1996-09-18
1998-05-19
Ro, Bentsu
Electricity: motive power systems
Periodic, repetitious or successive operations control of...
Variable periods or intervals between controlling operations
318DIG2, 388830, B60S 108
Patent
active
057540209
ABSTRACT:
A wiper-washer system for vehicles comprises at least one wiper drivable by a wiper motor and a washer device which includes a water reservoir and a water pump motor. The wiper and water pump motors are activated through a switching arrangement. The wiper motor is in the form of a direct current motor with a gearbox, designed for only a single rated speed. In addition a hybrid electronics unit provided with a control, a driver and a power output stage is fitted directly on or in the housing of the wiper motor. It is advantageous that the direct current motor for the wiper is of simpler construction and operates at more favourable working conditions than a two-speed direct current motor conventionally used. By means of the hybrid electronics unit the working current is supplied to the wiper motor in the absence of mechanical contact devices. Compared with conventional wiper-washer systems the outlay on cabling is reduced. Advantageous embodiments of the system are also described.
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Ford Global Technologies Inc.
Ro Bentsu
Sparschu Mark S.
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