Headlight control circuit of snowmobile

Details Headlight control circuit of snowmobile Headlight control circuit of snowmobile

1994-11-23

1996-04-23

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Vehicle mounted systems

315 79, 315 82, B60Q 126

Patent

active

055106579

ABSTRACT:
In a power supply circuit of a snowmobile in which an AC voltage of a magneto 51 is converted into a DC voltage to charge a battery 53 and electric power is supplied to an ECU 58 through a power relay 55 in response to turning on of a main switch 54 to inject fuel to an engine, a light relay 1 is provided to supply electric power from the battery 53 to electric loads such as headlights and the like and the ECU 58 judges a frequency of the AC voltage generated by the magneto 51 and control to turn on or off the light relay 1 in accordance with whether the frequency exceeds a predetermined value or not. Further, in the power supply circuit of the snowmobile, there are provided frequency-to-voltage conversion means 30 for converting the frequency of the AC voltage generated by the magneto 51 into a voltage and transistor circuits 24, 25 and 26 for controlling to supply electric power to electric loads 27 such as headlights and the like from the battery 52 or not to supply it in accordance with whether the frequency exceeds the predetermined value or not.

REFERENCES:
patent: 3909619 (1975-09-01), Kniesly et al.
patent: 4011460 (1977-03-01), Kniesly et al.
patent: 4015137 (1977-03-01), Kniesly et al.
patent: 4686423 (1987-08-01), Eydt
patent: 5382877 (1995-01-01), Katsumata et al.

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