Patent · US Expired

Wiper system using two wipers

US7256565B2 · kind B2 · utility

40Cited by

15References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wilfried Merkel · Kappelrodeck, DE
Gebhard Michenfelder · Lichtenau, DE
Claus Fleischer · Laufenburg (Baden), DE

Key dates

Filing date	Dec 14, 2001
Grant date	Aug 14, 2007
Priority date	—
Expiry date	Dec 14, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S318/02
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A wiper system using two wipers and two wiper motors, which drive the wipers and of which at least one first wiper motor forms a sub-assembly with an electronic control unit. The second wiper motor is a rotary motor having only one sensory system for detecting the absolute and relative rotational position of its driven shaft, which generates corresponding signals for the control unit of the first wiper motor, and the first wiper motor, in the rotational speed and the rotational position of its driven shaft, is regulated by the control unit as a function of the rotational position and the rotational speed of the driven shaft of the second wiper motor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.