Temperature controller for a transport refrigeration system
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United States of America Patent
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Apr 11, 1989
Grant Date -
N/A
app pub date -
Feb 27, 1987
filing date -
Feb 27, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ratiometric temperature controller for a transport refrigeration system, and a method of controlling the load temperature of a transport refrigeration system with digital signals, without the necessity of utilizing a digital computer. The method, implemented by the ratiometric controller, includes the steps of providing an analog ratio between the load temperature and a selected set point temperature, converting the analog ratio to a digital signal, and providing a logic array which is programmed to provide a plurality of transport refrigeration system control signals in response to predetermined values of the digital signal.
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