ECUs
Mark Boxsell
mrb at mail.mpx.com.au
Fri Jan 19 12:48:02 GMT 1996
>Hello,
> Here's a newbie thinking about the obvious.
>
> In control systems you there are three main categories: stochastic,
>derived and hybrids. Stochastic systems analyse input and out and and
>try and set up discrete mappings according to optmisation criteria.
>Derived attempt to solve the physical systems and so specify them as
>equations rather than tables. A hydbrid uses both where appropriate.
>Using empirical data to calibrate derived equations and pure
>stochastic solutions where the equations are too difficult.
>
> It seems, from the discussion here, most ECUs seem to be
>stochastic. I assume this is due to the "try it and see" empirical
>background of automotive engineers.
>
> My soldering skills are best not talked about in polite circles so
>an ideal development platform would be one like.
>
> - ECU running a multitasking operating system
> - Services available to access input and manipulate outputs (like
> timing, etc).
> - Each service would have a local butter to store/read data
> cyclicly so the optimization can be done externally.
> - Persistent code/data storage such as FRAM chips.
> - Laptop interface
>
>
> So you'd have some, say Java, firmware on the FRAM and more bulky
>code on the PC. Adding new drivers would create new Java objects to
>manipulate them.
>
> Does anything close to this exist or is it all pipe dreams?
>
>--
> _--_|\ -|- Gavin Walker
> / \ |
> \_.--.*/ <- Canberra, gavin.walker at dit.csiro.au
> v Australia Phone +61-6-2167030 Fax +61-6-2167111
>
Gavin,Gavin,Gavin,
remember an engine is just a dirty smelly thing which does
not liked being "modelled".
regards,
Mark Boxsell.
MRB Design
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