Speed control circuit for golf carts and the like
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United States of America Patent
Stats
-
Jan 7, 1986
Issued Date -
N/A
app pub date -
Oct 29, 1984
filing date -
Dec 7, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A special control circuit for a golf cart or like vehicle powered by a plurality of storage batteries. The batteries are connected circuitwise to a DC motor by speed control contactors to select battery connections in parallel, parallel/series and series for motor speed control. The speed control contactors are arranged so that their solenoids are de-energized at series battery connection and in parallel battery connection charges are normalized across the batteries. Moreover, the circuit provides different sets of parallel/series batteries for intermediate speed to equalize battery change levels. A safety circuit feature prevents the motor in reverse directional operation from being shifted from the low speed settings. Discharge of any battery below minimum operating voltage de-energizes the solenoids of the contactors to stop the vehicle.
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