ASE Heating and Air Conditioning
Terms & Definitions
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Closed loop
An electrical device that receives information from sensors and makes decisions based on these inputs along with programmed information, and send out the decisions to actuators.
Constant velocity joint
The volume displaced by all of the pistons in all of an engine's cylinders.
Electronic feedback system in which the answers provide constant information on what is taking place in the engine; the state of the engine control computer system when it is working normally, at full operating temperature and normal speeds with the oxygen sensor switching. The fuel injection quantity is determined by the set of inputs from the engine control computer sensors, most specifically the oxygen sensor in the exhaust stream. A closed loop system samples its output and uses that sampling to modify the next inputs.