How to model an Electrical Power Steering in Adams/Car?

[bj77]

I'm working on a steering subsystem and I need to model an EPS system in Adams/car.

1- Is there a default steering model for which the EPS can be activated?

If yes:
How can I model the Electric part and insert the electrical steering inputs for the model that i'm working on?

If not:
How can I model the EPS in general?

Thanks in advance

 

[cibachrome]

You can model hydraulic or electric power assisted steering using 'co-simulation' between Adams and Matlab/Simulink. It's all about reacting tierod loads appropriately with steering wheel moment(s). This can be done with quasi-steady state, low frequency maneuvering, friction, full dynamic range, frequency response, feedback control, boost limiting, and speed sensitivity. Have at it.

 

[GregLocock]

Sore point. The PAS models that are available in ADAMS have not caught up with the real world. Since I use a customised version I may be speaking out of school, but basically once you get beyond speed sensitive assist then you are on your own. Trying to get a decent black or grey box matlab model out of the vendors seems to be an uphill battle, I don't think they realise how things will have to work in the future where physical development prototypes just won't exist.

Cheers

Greg Locock


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