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GLOSSARY
106
International
®
VT 275 V6 Engine
Accelerator Position Sensor (APS)
A potentiometer sensor that indicates the position of the
throttle pedal.
Actuator
A device that performs work in response to an electrical
input signal.
Aeration
The entrainment of gas (air or combustion gas) in the
coolant or lubricant.
Ambient Temperature
The environmental air temperature in which a unit is operating.
American Trucking Association (ATA) Datalink
A serial datalink specified by the American Trucking
Association and the SAE.
Analog Signal
A continuously variable voltage.
Barometric Absolute Pressure (BAP) Sensor
A variable capacitance sensor which, when supplied
with a 5 volt reference signal from the ECM, produces
a linear analog voltage signal indicating atmospheric pressure.
Boost Pressure
The pressure of the charge air leaving the turbocharger.
Camshaft Position (CMP) Sensor
A magnetic pickup sensor that indicates engine speed and
camshaft position.
CAN 1
A data link between the vehicle modules and ECM.
CAN 2
The private link between the ECM and IDM.
Catalytic Converter
An antipollution device in the exhaust system that contains
a catalyst for chemically converting some pollutants in the
exhaust gases (carbon monoxide, unburned hydrocarbons,
and oxides of nitrogen) into harmless compounds.
Charge Air
Dense, pressurized, heated air discharged from the turbocharger.
Controller Area Network (CAN)
A J1939 high speed communication link.
Coolant
A fluid used to transport heat from the engine to the radiator.
Crankcase
The housing that encloses the crankshaft, connecting rods,
and associated parts.
Crankshaft Position (CKP) Sensor
A magnetic pickup sensor that determines crankshaft
position and speed.
Duty Cycle
A control signal that has a controlled on/off time measurement
from 0 to 100%. Normally used to control solenoids.
Electronic Control Module (ECM)
An electronic processor that monitors and controls the engine.
EGR Cooler
A cooler that allows heat to dissipate from the exhaust
gasses before they enter the EGR Valve.
EGR Valve
A valve that regulates the flow of exhaust gasses into the
intake manifold.
Содержание VT 275 V6
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