Parker EME
General
41
192-300300N1 GVI Frames C, D & E 2019-9
9. Monitoring
9.1
General
In this chapter some standard monitoring features of the motor controller are described. The behavior of
some monitoring features may be modified to fit a specific application. This manual describes the features
and settings as they are normally implemented. Refer to the OEM vehicle manual for information specific to a
certain application.
9.2
Temperature monitoring
The motor controller continuously monitors the power stage temperature and the motor temperature. The
purpose of the temperature monitoring is to avoid damage to the motor controller or motor caused by high
temperatures. An application should be designed such that the motor controller or motor stays within the
normal operating temperature for normal operation of the vehicle. An elevated temperature can be a sign
that something is amiss in the application.
To protect the power stage from damage, power will be reduced at temperatures outside the normal
operating temperature range as seen in Figure 28, and the motor controller will shut down completely at
110 C.
Figure 28 Available power as a result of power stage monitoring
It is possible to set up a similar protection based on the motor winding temperature; this is shown in Figure
28. Note that the motor temperature protection is configurable in the software so actual values implemented
in the application may differ from the default values shown in Figure 28.
9.3
Motor current Monitoring
•
Current measurement for V and W motor-phase, calibrated to
±
10 %.
•
Overload and short circuit protection.
9.4
Voltage monitoring
Voltage monitoring data
GVI 24
GVI 48
GVI 80
Voltage measurement range [V ±5%]
0 - 33.6
0 – 67.2
0 – 112
Overvoltage trip [V ±5%]
33.6
67.2
112
Battery voltage range [V ±0.5%]
20.4 - 26.4
40.8 - 52.8
68 - 88
Table 10. Voltage Monitoring data
9.5
CANopen PDO timeout monitoring
There is a CAN communication watchdog timeout for CANopen PDO monitoring, default timeout value is 50 ms.
9.6
Pre-charge timeout monitoring
During power up, the filter capacitor bank must be pre-charged within 10 s (default value).
Temp [ºC
]
Available power
85
100%
60%
110
-20
-40
37.5%
