"Brian Reay" wrote in message
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"gareth" wrote in message
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"rickman" wrote in message
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I did a little work on sonar for TRW.

I did a little work on power steering for TRW and was disturbed by
their attempting to
debug their software purely on the CANBus messages that came out;
hardly a professional approach for such a safety-critical car component.
Don't worry Frank, it is his usual nonsense. The TRW system defaults to a
'fail safe mode' if there is a Canbus issue, with the pump operating at a
preset speed.
Plus, of course, we can be sure his claims are revenge and reflect on him.
If you look back over his comments re past employers, he has made similar
comments about everyone. I don't recall a single positive comment. Of
course, there is a common factor.

Once again, Brian, M3OSN, Old Chum, your responses have nothing to do with
the gentlemanly traditions of amateur radio and owe everything to your
seeming wish to be abusove at every turn, very much in the
style of a disruptive infant in the kindergarten.

Why do you persist in behaving like that?

And why did you remove the rra.antenna cross post? Was it to hide your true
nature from the Yanks?

And you really ought to check your facts before invoking your desperate wish
to want to insult,
because the system under development had no pump, it was all electrical, but
thankfully
intended for the American market so no danger on Brit roads!

Interesting was the size of the FETs to drive the motor, which were several
orders of magnitude
bigger then the microprocessor driving them. I put this down to the motors
always in a starting
mode and never geting up to a speed at which the back EMF would be
generated.

One other thing that concerned me was that the steering system had no point
of reference to know
when the steering wheel was in the middle position, and waited until it
received a CANBus signal
from the ABS unit that all wheels were now turning at the same speed, a
condition that could easily
come when starting off on an icy road with the steering wheel hard over to
one side, thus resulting
in a steering system that would prevent you completely from being able to
steer to that side; particularly
dangerous on an icy road!