HEM4300 Engine Controller User Manual Page 15 of 55
proportional to speed. Speed control curve is as following:
Fig.4 Throttle Speed Control Curve
4.7.4
KEY + THROTTLE SPEED CONTROL
After setting manual speed control, select speed control type: 3: Key + Throttle Speed Control
.
Parameter setting is same as 2: Throttle Speed Control
.
The control logic is that engine is
stabilized to adjusted speed through speed raise/drop key after normal running. The speed is adjusted
by user according to actual application condition. After key adjusting, user can control speed via
throttle, engine speed takes key adjusting speed as the start. When throttle increases, engine speed will
increase from speed set by the key directly without idle; when throttle decreases, engine will slow down.
It can decrease to key adjusting speed to a minimum.
5
MANUAL DPF REGENERATION
5.1
ILLUSTRATION
For engines meeting Euro V Standard, they all have DPF regeneration function.
Usually engine can clear the particulates in DPF by automatic regeneration function. However,
engine usually is at short-time state, no-load running or low-speed low-load running state, automatic
regeneration cannot completely clear out the DPF particulates, and there may appear particulate block,
and beyond the limitation. Under this circumstance, manual DPF regeneration operation is needed.
Controller supports manual regeneration function, which meets the requirements of Euro V engine
for controller. It can realize manual DPF regeneration operation.
