Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1983-07-19
1985-02-12
Pellinen, A. D.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
307 35, 307 39, 307140, H02J 314
Patent
active
044993854
ABSTRACT:
A power management system for a recreational vehicle which operates automatically to disconnect a major electrical appliance, such as an air conditioner, heater or water heater, from power when the current drawn by additional appliances exceeds a preset current threshold. When the current drawn by these additional appliances falls below the threshold, the major appliance is automatically reconnected. A preferred embodiment operates to alternate between two or more air conditioners, heaters, or the like, to ensure that only one is connected to power at any given time, but that both are activated alternately and in sequence to provide efficient use of both air conditioners. In addition, preferred embodiments operate to interrupt operation of the air conditioners whenever the power voltage falls excessively low, and to ensure at least a preselected time delay between the time an air conditioner is stopped and restarted.
REFERENCES:
patent: 3603806 (1971-09-01), Hitzke
patent: 4090088 (1978-05-01), McMahon et al.
patent: 4336462 (1982-06-01), Hedges et al.
patent: 4357665 (1982-11-01), Korff
patent: 4421992 (1983-12-01), Hibbard et al.
patent: 4446359 (1984-05-01), Arribas et al.
Jennings Derek
Nuvatec, Inc.
Pellinen A. D.
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