Disconnection indicating apparatus for automobiles
First Claim
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1. A disconnection indicating apparatus for use as an initial activating and turn signal lamp out indicator for automobiles, said apparatus comprising;
- turn signal selecting switch for activating a plurality of selected turn signal lamps;
pulse generation means for generating a continuous stream of electrical pulses at a specified selected frequency;
switch detection means for detecting the operation of said turn signal select switch and thereafter activating said pulse generation means;
intermittent switching means connected to a source of power and adapted to receive said pulses to intermittently switch said power at the frequency of said pulses to intermittently energize said selected turn signal lamps;
current detection means adapted to monitor the flow of current to said selected lamps and to generate a specified frequency selecting signal in response to changes in said current flow; and
initial flash frequency switching means adapted to select an initial frequency pulse signal from said pulse generation means for a specified period of time following the initial activation of said turn signal select switch and to thereafter respond to said frequency selecting signal from said current detection means to switch between a plurality of stable operational states to select a particular frequency pulse signal from said pulse generation means.
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Abstract
A disconnection indicating apparatus for automobiles which electrically detects a disconnection or failure of an automobile turn signal and automatically signals the failure by flashing the disconnected turn signal lamps at an increased flash frequency.
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Citations
1 Claim
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1. A disconnection indicating apparatus for use as an initial activating and turn signal lamp out indicator for automobiles, said apparatus comprising;
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turn signal selecting switch for activating a plurality of selected turn signal lamps; pulse generation means for generating a continuous stream of electrical pulses at a specified selected frequency; switch detection means for detecting the operation of said turn signal select switch and thereafter activating said pulse generation means; intermittent switching means connected to a source of power and adapted to receive said pulses to intermittently switch said power at the frequency of said pulses to intermittently energize said selected turn signal lamps; current detection means adapted to monitor the flow of current to said selected lamps and to generate a specified frequency selecting signal in response to changes in said current flow; and initial flash frequency switching means adapted to select an initial frequency pulse signal from said pulse generation means for a specified period of time following the initial activation of said turn signal select switch and to thereafter respond to said frequency selecting signal from said current detection means to switch between a plurality of stable operational states to select a particular frequency pulse signal from said pulse generation means.
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Specification
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Current AssigneeNiles Parts Co., Ltd. (Valeo SE)
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Original AssigneeNiles Parts Co., Ltd. (Valeo SE)
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InventorsShimizu, Akio
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Primary Examiner(s)Caldwell, Sr., John W.
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Assistant Examiner(s)Crosland, Donnie L.
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Application NumberUS05/760,717Time in Patent Office566 DaysField of Search340/73, 340/81 R, 340/80, 340/81 F, 340/251, 315/82, 315/83, 11/11US Class Current340/458CPC Class CodesB60Q 11/007 the lighting devices indica...
