GB1085797A - Electrical operating circuits for windscreen wipers - Google Patents

Electrical operating circuits for windscreen wipers

Info

Publication number
GB1085797A
GB1085797A GB3913463A GB3913463A GB1085797A GB 1085797 A GB1085797 A GB 1085797A GB 3913463 A GB3913463 A GB 3913463A GB 3913463 A GB3913463 A GB 3913463A GB 1085797 A GB1085797 A GB 1085797A
Authority
GB
United Kingdom
Prior art keywords
capacitor
transistor
wiper
diode
oct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3913463A
Inventor
Derek Stanley Adams
Geoffrey William Candy
Christopher Stephen Rayner
Maurice James Wright
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB3913463A priority Critical patent/GB1085797A/en
Publication of GB1085797A publication Critical patent/GB1085797A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0803—Intermittent control circuits
    • B60S1/0807—Intermittent control circuits using electronic control means, e.g. tubes, semiconductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

1,085,797. Control of motors. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 5, 1964 [Oct. 4, 1963; Jan. 7, 1964], Nos. 39134/63 and 662/64. Addition to 1,051,067. Heading H2J. [Also in Division H3] The delay arrangements in the windscreen wiper motor control system described in the parent Specification is modified in various details. The wiper makes a single sweep and remains in its parked position until thyristor 21 is triggered; as shown, this occurs when transistor 24 conducts, which is when capacitor 28 has sufficiently discharged through 23 and 27. This is said to obviate accidental switching by transients. The circuit may be modified by omitting resistor 23 and replacing diode 22 by a large variable resistor. 28 is then charged through the anode and gate of 21 and transistor 24. When the wiper is switched off (switch 16 to 20) a discharge path for 28 is provided through 29 and the motor windings so that, upon switching on, the motor starts immediately. Alternatively, an additional diode and switch may be arranged to discharge the capacitor. In an alternative embodiment (Fig. 3, not shown) the thyristor is triggered when a unijunction transistor or a four-layer diode conducts, the delay in this case being effected by the charging of a capacitor via a variable resistor.
GB3913463A 1963-10-04 1963-10-04 Electrical operating circuits for windscreen wipers Expired GB1085797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3913463A GB1085797A (en) 1963-10-04 1963-10-04 Electrical operating circuits for windscreen wipers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3913463A GB1085797A (en) 1963-10-04 1963-10-04 Electrical operating circuits for windscreen wipers

Publications (1)

Publication Number Publication Date
GB1085797A true GB1085797A (en) 1967-10-04

Family

ID=10407823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3913463A Expired GB1085797A (en) 1963-10-04 1963-10-04 Electrical operating circuits for windscreen wipers

Country Status (1)

Country Link
GB (1) GB1085797A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569812A (en) * 1967-11-30 1971-03-09 Gen Motors Corp Electric windscreen wiper systems
US3614573A (en) * 1970-02-05 1971-10-19 Gulf & Western Syst Co Intermittent control for windshield wiper systems
DE4216838A1 (en) * 1992-05-21 1993-12-16 Danijel Golub Regenerative mechanical braking e.g. using DC motor with planet or spur gear unit - always applies input power at gear unit driven shaft and uses resulting electric output power for braking purposes.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569812A (en) * 1967-11-30 1971-03-09 Gen Motors Corp Electric windscreen wiper systems
US3614573A (en) * 1970-02-05 1971-10-19 Gulf & Western Syst Co Intermittent control for windshield wiper systems
DE4216838A1 (en) * 1992-05-21 1993-12-16 Danijel Golub Regenerative mechanical braking e.g. using DC motor with planet or spur gear unit - always applies input power at gear unit driven shaft and uses resulting electric output power for braking purposes.

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