Control circuit for signal lamps of a vehicle
First Claim
1. A control device for signal lamps of a vehicle, comprising a) a signalling circuit for generating an intermittent signal current as load current for the signal lamps, and b) a signal switch for activating the signalling circuit, wherein:
- c) a clock circuit is provided which controls the load current of at least two signal lamps individually in each case with the aid of a prescribed clock sequence, and d) acting as an operating voltage source for the clock circuit, the signalling circuit feeds the clock circuit the intermittent signal current.
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Accused Products
Abstract
A control device for signal lamps of a vehicle, having a signalling circuit for generating an intermittent signal current as load current for the signal lamps, and a signal switch for activating the signalling circuit. The control device, which can be implemented easily, generates a running light function for signal lamps of a vehicle. A clock circuit is provided which drives the load current of at least two signal lamps individually in each case with the aid of a prescribed clock sequence, in which case, acting as operating voltage source for this clock circuit, the signalling circuit feeds the latter the intermittent signal current. The control device can be used both in the context of a turn flasher and hazard warning function and for signalling the state of central locking or antitheft warning systems, and merely for controlling electroluminescence luminous strips with the aim of enhancing the overall visual impression of a vehicle.
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Citations
29 Claims
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1. A control device for signal lamps of a vehicle, comprising
a) a signalling circuit for generating an intermittent signal current as load current for the signal lamps, and b) a signal switch for activating the signalling circuit, wherein: -
c) a clock circuit is provided which controls the load current of at least two signal lamps individually in each case with the aid of a prescribed clock sequence, and d) acting as an operating voltage source for the clock circuit, the signalling circuit feeds the clock circuit the intermittent signal current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle lighting system, comprising:
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a first switching element;
a first control device to generate a first signal in response to a state of said first switching element;
an electroluminescent device; and
a second control device to generate a second signal for driving said electroluminescent device in response to said first signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of activating a vehicle lighting system, comprising:
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generating a first signal in response to a state of a first switching element;
generating a second signal in response to said first signal; and
activating an electroluminescent device using said second signal. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification