Re: XPL - XAP

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

>I suspect it does a best guess for tyre pressures

Rather, I think it monitors car behaviour & deduces the state of the
tyres ...

>automate these functions as a retro-fit for my car

Anything's possible, I guess, but 'would need a lot of sensors & some
good failure strategies, in sensors & wiring & computing !

Chris



Andy Laurence wrote:

> From: Chris Hunter [mailto:cjhunter@xxxxxxx]
> > PS:  To add some simple examples ... the car tells me when it
need
> > servicing (needs to go to the garage, depending on usuage, needs
more
> > water in the washer-bottle, needs the tyres pumping-up, without
there
> > being pressure sensors on the tyres, etc)
>
> I suspect it does a best guess for tyre pressures.
>
> > ... it adjusts under- /
> > over-steer when cornering, brakes cleanly without skidding or
deviating
> > from the commaned line, checks doors for closure, closes the
windows
> > when it rains, adjust windscreen wiper speed according to vehicle
speed
> > (eg: goes intermittent when stopped for 'lights), manages the
cabin air
> > environment ... and so-on ... ie: it's helpful &
context-sensitive ...
>
> I suspect this involves lots of seperate modules all on a shared data
> bus.  There's probably a few processors that control it all.  Very
> distributed, and very robust, I suspect.  Coincidentally, I've been
> thinking about these sort of systems quite a lot recently.  I have a
> company car that's up to date, and does all this automagically.  I
> also have a BMW M535i for fun at weekends that does not.  I was
> thinking about a data bus with lots of sensors and actuators that
> could automate these functions as a retro-fit for my car.  I don't
> have the time at the moment to do more than think about it though.
> I'd not considered a xAP/xPL wireless gateway though!
>
> Cheers,
> Andy