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Recreational vehicle power control system
| Details |
Inventors: Slavik, William H.;
Assignee: Nuvatec, Inc. (Downers Grove, IL)
Primary Examiner: Pellinen; A. D.
Assistant Examiner: Jennings; Derek S.
Attorney, Agent or Firm: Willian Brinks Olds Hofer Gilson & Lione Ltd.
A power management system for a recreational vehicle 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 of this invention 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 of this invention 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. |
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DETAILED DESCRIPTION The present invention is directed to a control system for recreational vehicles which to a large extent overcomes these and other problems associated with the use of electrical appliances powered by shore power.
According to a first feature of this invention, a power control system is provided for a recreational vehicle of a type which includes means for receiving electrical current from a source of power, a major electrically powered appliance such as an air conditioner or a heater, a plurality of additional electrically powered appliances, and means for connecting the major and the additional appliances automatically disconnecting the major appliance from the receiving means if the power voltage falls below a given threshold, as well as means for automatically reconnecting the major appliance to the receiving means after the power voltage returns to an operating range.
The preferred embodiment ensures that the major appliance remains disconnected from the receiving means for a predetermined time period before it is reconnected.
By automatically disconnecting the major appliance when voltage levels fall below acceptable thresholds, damage to the major appliance can be avoided.
Finally, by ensuring that the major appliance is not stopped and then restarted until a preselected delay time has elapsed, this controller protects appliances such as air conditioners from being forced to restart against an excessive head of pressure.
According to a second feature of this invention, a controller is provided for a recreational vehicle of the type which includes means for receiving electrical current from a source of power, a first electrically powered heat transfer appliance controlled by a first manual switch, a second electrically powered heat transfer appliance controlled by a second manual switch, a plurality of additional electrically powered appliances, and means for connecting the first and second heat transfer appliances and the additional appliances to the receiving means
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I/O Systems 
