PTC3EM Control Modes

The powertrain application PTC3EM is able to control three test bench drives.

There are four standard control modes for PTC3EM. The first letter of the control mode represents test bench Drive A. The second letter represents the test bench Drives B and C.

Table 3. PTC3EM Standard Control Modes
Button Description
n/off Drive A is speed controlled, Drive B and C are off.
off/n Drive A is off, Drive B and C are speed controlled.
n/T Drive A is speed controlled, Drive B and C are torque controlled.
T/n Drive A is torque controlled, Drive B and C are speed controlled.

You can parameterize the control modes based on the DUT requirements.

Table 4. Parameterization of Control Modes for a Final Drive
Number Control Mode Drive A Drive B Drive C
1 n/off n off off
2 off/n off n n
3 T/n T n n
4 n/T n T T

Depending on the control mode selected, the relevant main setpoints can be set:

Table 5. PTC3EM Setpoints
Number Control Mode Drive A Drive B Drive C
1 n/off Speed ndrive N/A N/A
2 off/n N/A Speed ndrive Speed ndrive
3 T/n Torque ndrive Speed ndrive Speed ndrive
4 n/T Speed ndrive Torque ndrive Torque ndrive
Note Further model based control modes like M/RLS are not supported by this application.