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brake can be achieved by properly releasing the accelerating pedal.The presenting back of
electric power to battery prolongs the one-charge-travelling distance of it.
4
、
Function of backward slip preventation on slope,when the vehicle is stopped on slope,it will
slip downward the slop acceleratedly if hand brake or food brake pedal is released. The function of
backward slip preventation can prevent the phenomenon of slipping downward acceleratedly and
ensure that electric forklift slips downward uniformly with a low speed.
5
、
The maximum travelling speed can be set.The setting of the maximum travelling speed of
electric forklift can prevent pulling motor from overloading caused by excessive vehicle speed.
6
、
Shut down static recovery,controlling device will be shut down if seat swith or ignition key is
off..Only when the direction controlling rod is switched to neutral position can the vehicle be
restarted.That is to say,if the driver leaves vehicle at any time and returns back to it,it is necessary
to switch the direction controlling rod to neutral position to restart. This function can prevent
unexpected insecurity. There is two seconds of time delay at the input end of seat switch,which
allows seat switch can be off in trashing.
7
、
Safety protection function.When the power element in controller is damaged in vehicle
travelling,the controller will cut off main contactor as quickly as possible.When the temperature
ascending speed of controller is too high,the controller will automatically limit the armature
current of motor. And when the battery voltage is too low,the controller will stop working to keep
safe.
8
、
There is self-diagnose function in pulling motor controller and oil pump motor
controller.Once malfunction occurs in the working of controller,there will display malfunction code
in indicating instrument,which will stop the controller from working to ensure the safety of
operating system.
9
、
Display instrument will show battery power and the cumulative working hours.
4.2.4
、
Maintenance of circuit system
(1)
、
Check the contact wear condition
; replace the contact if it’s worn and the contact should be
checked every three months.
(2)
、
Check the pedal and tiller micro switch;
Measuring the voltage drop at the ends of the micro
switch, there is no resistance when the micro switch micro open closure should be without resistance, when
released should have a clear voice.Check once every three months.
(3)
、
Check the main circuit: battery- controller- connecting cable of the motor. To ensure that the
cable insulation is good, the clamp circuit connection is fixed. Check once every three months.
(4)
、
Check the pedal mechanical movement to see whether the spring will deform, whether
potentiometer spring can stretch out or draw back to the maximum level or setted levels.Check once every
three months.
(5)
、
Check the contactor mechanical movement, the contactor should move freely without adhesion,
mechanical movements of the contactor shall be inspected once every 3 months.
4.3 Combination instrument
Using new combination instrument, the main function is to realize auxiliary control and provide the
vehicle display interface to the driver. It is composed of control circuit, the cumulative time counter (liquid
crystal display), battery meter, fault code display and other circuit. Based on the current electric car demand,
this instrument have new design in the control circuit and display form, which can provide drivers intuitive
vehicle state information. This instrument has many advantages, such as compact structure, beautiful
outline, high automatic degree and reliable quality.
Figure
：
