Hour - Hisun HS 500 Owner's Manual

If a customer complaint" vehicle deviation", it
should take into account the fault causes not only
includes the EPS system fault, also includes a
chassis mechanical failure, customers may use"
Deviation" to describe a specific situation. So four
wheel alignment need to be adjusted at first time,
then ECU replacement and repair needed.
2. The Fault of closing function
The main objective to research and develop EPS
system is needed to ensure that the vehicle is still
controlled by driver when malfunction happened.
Therefore we will not allow any directions
(clockwise or counterclockwise) suddenly appear
bigger undesirable steering torque.
Therefore, the EPS system has many monitoring
function, used to identify the sensor, actuator and
the involvement of the EPS system function
whether is malfunctioning. All cannot continue to
reliable accurate control motor malfunction will
lead to the interruption of motor control ECU, then
closed function of EPS system.
Close the EPS system's bad results will also cause
the driver can not obtain power steering.
But close measure is mainly used for preventing
error control motor.
When fault occurs, power steering disappear is a
predetermined EPS
characteristic. Although the driver may feel the
characteristics of some accidents, but increases
the control force, can ensure the vehicle steering
performance is not affected. Neither the EPS
steering system nor hydraulic power steering
system, when fault occurs, power steering will
disappear. When a fault occurs, the two systems
reaction will be similar. This fault occurs, EPS
system fault indicator light inside of meter will be
lighten. If above circumstances happened, EPS
ELECTRIC POWER STEERING SYSTEM
system response
system will be no power steering, and through the
instrument to show the corresponding fault code
and remind driver to take care.
3. The software function forms' limit position
Although the mechanical structure of the EPS
system has mechanical limit position, it is still
possible for EPS system to realize the function of
decreasing steering power before reaching the
mechanical limit position in form of slope curve.
Although the customer will feel the steering
resistance increases, when turned to the limited
position process will become obviously more
smoothly.
In addition, it can also reduce the steering system's
mechanical and electrical components' load, which
helps in obtaining reliable function and long service
life.
■ EPS system Periodic maintenance
For primary use after 50 hours, adjust EPS system
part of parameters according to the steering
system's clearance variation and chassis changes.
Please go to the dealer for alignment.
For every 100 hours using time, according to the
steering system and the chassis changes, adjust
EPS system relevant parameters.
CAUTION
Before adjust ECU for every time, please check the
clearance of mechanical part and adjust four
wheels fixed position of UTV.
EPS SYSTEM PARAMETER TABLE
■ EPS system basic technical parameters
■ EPS system working conditions
1. Working environment temperature：
15-12