The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1993
Filed:
Sep. 30, 1992
Peter Nolting, Buehlertal, DE;
Juergen Mangler, Kuppenheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The method of operating a windshield wiper intermittently requires an apparatus including a rain sensor (12), which generates a signal (S) depending on an amount of rain on the windshield, and a signal processing device (13), e.g.a microprocessor with internal A/D and D/A converters, connected to the sensor (12) to receive the signal (S) and, a control unit connected to the signal processing device (13), and, advantageously, a device for measuring a wiping process duration (T) and inputting the duration to the microprocessor and a drive for the windshield wiper connected to the signal processing device (13). According to the method, the windshield wiper is operated by the signal processing device at least partially according to the signals (S) from the sensor so that the time interval (I) between successive current wiping processes, depends, in part, on a duration (T.sub.-1, T.sub.-2, . . . T.sub.-n) of at least one past wiping process (W.sub.-1, W.sub.-2, . . . W.sub.-n); in part, on a number of signals (S) received from the sensor (12) in a certain time interval F set in the signal processing device; in part, on at least one of two intervals (I.sub.-1, I.sub.-2, . . . I.sub.-n) between past wiping processes (W); and also depends, in part, on at least one time interval (D.sub.0,D.sub.-1, . . . D.sub.-n) between successive ones of the signals (S.sub.0,S.sub.-1 ;S.sub.-1,S.sub.-2, . . . S.sub.-n,S.sub.-n-1).