Speed reducing signal
First Claim
1. A speed reduction signaling apparatus for use in an automotive vehicle having an electrical power system and a rotatable mechanical system comprising:
- a speed responsive pickup system cooperative with a plurality of permanent magnets mounted on said rotatable mechanical system and which emits pulses at a rate responsive to said vehicle'"'"'s speed;
a timing circuit means for independently providing clock timing pulses at a predetermined rate and establishing speed threshold;
logic circuitry means cooperative with said speed responsive pickup system and said timing circuit means for determining when said vehicle'"'"'s speed has fallen below said speed threshold;
a plurality of external lamp means cooperative with said logic circuitry means and which are caused to alternately flash on and off by said logic circuitry means whenever the rate of said pulses which are emitted by said speed responsive pickup system falls below said speed threshold; and
electrical connections for receiving electrical energy for said speed responsive pickup system, said timing circuit means, said logic circuitry means, and said external lamp means and adapted for connection to said electrical power system.
0 Assignments
0 Petitions
Accused Products
Abstract
Rear warning lights on a vehicle are actuated in response to vehicular speed. When energized below a predetermined vehicular speed threshold, the warning lights will begin to flash alternately. The rate of flashing may be fixed so that each warning light flashes on briefly and at a fixed rate or it may be set to flash at a rate related to vehicular speed so that each warning light stays on longer as the vehicle speed decreases. At some very low vehicular speed, corresponding substantially to a full stop, the flashing may be set to cease so that one of the warning lights will glow steadily.
26 Citations
6 Claims
-
1. A speed reduction signaling apparatus for use in an automotive vehicle having an electrical power system and a rotatable mechanical system comprising:
-
a speed responsive pickup system cooperative with a plurality of permanent magnets mounted on said rotatable mechanical system and which emits pulses at a rate responsive to said vehicle'"'"'s speed; a timing circuit means for independently providing clock timing pulses at a predetermined rate and establishing speed threshold; logic circuitry means cooperative with said speed responsive pickup system and said timing circuit means for determining when said vehicle'"'"'s speed has fallen below said speed threshold; a plurality of external lamp means cooperative with said logic circuitry means and which are caused to alternately flash on and off by said logic circuitry means whenever the rate of said pulses which are emitted by said speed responsive pickup system falls below said speed threshold; and electrical connections for receiving electrical energy for said speed responsive pickup system, said timing circuit means, said logic circuitry means, and said external lamp means and adapted for connection to said electrical power system. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification