SENSOR-TYPES FREQUENCY PWM (DIGITAL) ANALOG ANALOG to DIGITAL
MACHINE ELECTRONICS
• • • •
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1
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MAGNETIC FREQUENCY SENSOR
MACHINE ELECTRONICS
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TRANSMISSION SPEED SMALL SIGNALS FROM SENSING ELEMENT
OUTPUT ROTATING GEAR
AMP
AMP SMALL AC SQUARE WAVE
LARGE SQUARE WAVE
MACHINE ELECTRONICS
SENSING ELEMENT ('HALL CELL') HALL CELL IN SLIP HEAD
SMALL SQUARE WAVE
REMOVE DC VOLTAGE
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MACHINE ELECTRONICS
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MACHINE ELECTRONICS
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DIGITAL TEMPERATURE SENSOR
B+ GND Signal
MACHINE ELECTRONICS
V+ VS +8
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MACHINE ELECTRONICS
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ANALOG TEMPERATURE SENSOR ENGINE CONTROL
THERMISTER
T
A C B
5V SIGNAL (0 - 5V) ANALOG RETURN
MACHINE ELECTRONICS
AMPLIFIER
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ANALOG SECTION
DIGITAL CONVERTER
PWM OUTPUT TO CONTROL
GROUND
SCHEMATIC ENVELOPE
DISPLAY GRAPHICS
MACHINE ELECTRONICS
SIGNAL V+
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OUTPUT COMPONENTS • Main Display Module MACHINE ELECTRONICS
• Display Data Link • Alert Indicators • Action Lamp/Alarm
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MACHINE ELECTRONICS
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MACHINE ELECTRONICS
MACHINE ELECTRONICS
LAB EXERCISES SCHEMATICS QUIZ Directions: Using the truck electrical schematic given complete the following quiz. Fill in the blanks or mark the correct answer. 1 Locate the engine coolant sensor on the schematic. List the schematic grid location and the machine silouette.
2
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grid location
___
machine location (silouette).
What is the part number of the engine coolant temperature sensor? _____________
3
What gauge wire s are attached to the sensor in question 2? a)
14
b)
16
c)
18
d)
20
4. Locate the start aid switch on the schematic. List the shematic grid location and the machine silouette.
5.
___
grid location
___
machine location (silouette).
How many wires are attached to the switch in question 8? a)
2
b)
3
c)
4
d)
5
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MACHINE ELECTRONICS
LAB EXERCISES 6.
What are the wire numbers & colours attached to the switch in question 5
