Diesel engine simulator for starter motors

[istvanb]

Hello Community,

I need to build something like this:

http://youtu.be/zbXRRQmf0jI

The bottomline is that I'd like my prime mover (the big electrical motor I will control) to force the unit under test to follow a certain speed profile and by this simulating the stress it receives on a real combustion engine. The prime mover will be controlled by an Emerson made drive, which has two control modes: speed and torque. I believe I understand what is "speed control" and I believe thats what I need. (I have the speed profile recorded and this is what I want to apply on unit under test). But what does the "torque mode" mean exactly?

This is quite a project, I am looking forward to get your thoughts. Does somebody here has hands on experience with Emerson drives?

Thanks,
i-

 

[iop95]

You need a device that simulate engine torque variation in crancking sequence. This may be do by a controlled friction brake or by a generator (I think DC motor is quadrant IV offer simplest control mode). Torque profile may be made by changing accordingly generator load. As this torque is time and speed variable, control system must implement this.