Denso 4D56 - Electronic Control Throttle

Operation Section
1
–
25
8.6 Electronic Control Throttle
(1) Outline
• The suctioning of air is stopped through interlocking the intake throttle with the key switch in order to reduce engine vibration when
the vehicle is turned off.
Q001260E
Engine ECU
EFI Main Relay
Airflow Meter
Power Supply
VG
+B
EVG
IC
THA
E2
Intake Air
Voltage Detection
Voltage Detection
Power
Supply
Intake Air
Temperature Sensor
Heating
Element
Air Thermometer
5V
Temperature
sensing
element
E
2 THA VG E2 G +B
Heating
element
Temperature
sensor
Air
Air Flow-VG Characteristic
5
4
3
2
1
0
VG
(V)
1
2 5 10 20 50 100 200
Air Flow (x10
-3
kg/s)
-20
0.2
0.3
0.5
0.7
1
2
3
5
7
10
20
30
k
Ω
20 40 60 80
°C
0