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CONTROL SYSTEM
TNV Application Manual
2-55
Accelerator filter
The accelerator filter regulates the trade-off between acceleration/deceleration time and overshoot/
undershoot during acceleration or deceleration. This feature is factory set appropriately, but a higher priority
may have to be given to either the reduction of acceleration/deceleration time or the suppression of
overshoot/undershoot depending on the engine applications.
shows the effect of the accelerator filter. The accelerator filter delays reaching the engine target
speed, thereby avoiding overshoot and undershot while trading off the speed responsibility of the engine.
Figure 2-49
Effect of the accelerator filter
Block heater control
This feature allows the block heater to be turned on or off by an external coolant-temperature monitoring
relay as long as the E-ECU power supply is on. By default, the block heater relay turns on when the coolant
temperature decreases to 15°C, and turns off to disable the block heater when the coolant temperature
increases to 50°C.
shows a typical connection diagram for block heater control.
Figure 2-50
Connection diagram for block heater control
Time
α
β
[Acceler
a
tor
s
tr
a
ight]
T
a
rget
S
peed
Act
ua
l
S
peed
Time
Over
s
hoot
[Acceler
a
tor filter]
Longer ri
s
e time
a
d
a
pt
α
a
nd
β
b
y in
s
t
a
ll
a
tion te
s
t
Engine
S
peed
Engine
S
peed
ECU
APP-OP2(E2)
AC115V/210V
Block he
a
ter
AC115V: 171015-77900
AC210V: 46150-504500
E4
8
E45
Block he
a
ter rel
a
y
B
a
tt.12V
00_Electronic_Control_System.book 55 ページ 2006年5月29日 月曜日 午後2時12分
Summary of Contents for Yanmar 3TNV82A-B
Page 95: ...CONTROL SYSTEM 2 76 TNV Application Manual 00_Electronic_Control_System book 76...
Page 96: ...Appendix Standard harness 1 00_ _E fm 1...
Page 97: ...Appendix Standard harness 2 00_ _E fm 2...
Page 98: ...TNV Series service tool Operation Manual...
Page 132: ...32 7 Main Menu Figure 7 15 Data Logging Data Monitor Screen...
Page 145: ...7 Main Menu 45 Figure 7 27 System Installation Configuration Screen...