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1. (US20190270431) ELECTROMAGNETIC WINDSHIELD WIPER SYSTEM

Office : United States of America
Application Number: 16291186 Application Date: 04.03.2019
Publication Number: 20190270431 Publication Date: 05.09.2019
Publication Kind : A1
IPC:
B60S 1/08
B60S 1/16
H02K 11/33
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
S
SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
1
Cleaning of vehicles
02
Cleaning windscreens, windows, or optical devices
04
Wipers or the like, e.g. scrapers
06
characterised by the drive
08
electrically driven
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
S
SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
1
Cleaning of vehicles
02
Cleaning windscreens, windows, or optical devices
04
Wipers or the like, e.g. scrapers
06
characterised by the drive
16
Means for transmitting drive
[IPC code unknown for H02K 11/33]
CPC:
B60S 1/16
B60S 1/0807
B60R 16/0231
B60S 1/0818
H02K 11/33
Applicants: Tesla, Inc.
Inventors: Nicolas Clift
Maithreya Kedambadi Prasanna
Gonzalo Espinoza Graham
Priority Data:
Title: (EN) ELECTROMAGNETIC WINDSHIELD WIPER SYSTEM
Abstract: front page image
(EN)

An electromagnetic wiper system for a windshield of a vehicle includes a linear actuator, a wiper-arrangement, and control circuitry. The linear actuator includes at least one guide rail having permanent magnets and an electromagnetic moving block. The electromagnetic moving block includes at least one perforation that surrounds the at least one guide rail and at least one electromagnetic coil that surrounds the at least one perforation. The wiper-arrangement includes a wiper arm and a wiper blade, wherein at least the wiper arm is coupled to the electromagnetic moving block. The control circuitry controls a linear motion of the electromagnetic moving block along the at least one guide rail to steer the wiper arm that is coupled to the electromagnetic moving block back and forth across a length of the windshield to the windshield, wherein the electromagnetic moving block induces minimal friction during the linear motion.