GM trying to keep you from modding your vehicle
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Forum Discussion
First...today's vehicles are now totally controlled by computers the
the only thing the driver really controls are the steering wheel, pedals
and that is pretty much all
Notice said 'steering wheel'...the computers today control the steering
wheel signals to the actual power steering unit (electric, the old
hydraulics still has a semi direct link)
Throttle is by wire. Meaning the pedal is connected to an electronic
sensor (potentiometer or some such) that then tells the computer what
the driver 'wants' and it will decide if it will or not listen
Folks should educate themselves by reading up on the legalities of
OS (operating systems), open source, source code and a host of other
software/computer technologies
Apple, Microsoft, etc all guard their OS and sue anyone, everyone who
touches it without a source license. Yes, they do publish API's, but
once you get into their OS itself, law suit.
My last job's OS was Solaris and just like Apple OS and MS based on
Cal Berkeley Unix 2.x. We also had an open source version that was
free and semi supported. Hope you folks understand that is one of their
crown jewels and is a revenue position (think of your own paycheck)
Now that just about everything on any vehicle is 'highly integrated'
and their buyers love the fact that everything is 'highly integrated'...now
be ready for the onerous side to crop up...they now own you via hos
the vehicle works/behaves/etc
Am glad Burbman commented that he knows that his Burb (GMT800) is
now a network (LAN). So true and more so with newer vehicles
I know a bit of this, as in the 90's GM gave my group at Sunlabs
a prototype EV2. JAVA was the buzz and on this proto, but it was flaky
and had a mind of it's own
My scientists were pulling their hair out, as JAVA was our invention.
Took a look at the logic diagram and noticed no real time (industrial
level, or real, real time...with hierarchical timing in whole to
fractions of milseconds) and the biggie...NO MASTER SLAVE established
Since no master established...they all thought they were masters...
Now folks...'we' have what 'we' asked for in our vehicles.
An example is the debates over my desire to have component trailer
brake controller that *I* can manage vs those who think 'highly
integrated' so much better...yes on the good days out there...but try
to diag a problem...it will take a computer tech/engineer and even then
if they don't have the right tools, almost impossible to tell if the
ABS computer is flaky, its sensors flaky, or the integration with the
toque management computer, or the transmission computer, or the ECU,
or whatever else is in that 'hightly integrated' system
I expect the tuner folks to go away for a while playing with the APIs
via poke it here and see what the computer does...till they 'think' they
have figured it out...but then, that is only on the good days and
what about the time when the computer systems lose a sensor over there
way, away from the tuner?
Someone should find out how many lines of code there is for EACH
computer and the system code level.
What level of 'real time' does it have. Real, real time is industrial
level, not what most computer folks 'think' is real time
Like a sensor says something is wrong...real, real time will set a
high order flag that will have the main computer slap all of the other
computers NOW (milliseconds)...not like most non real time system that
will just place that flag into the queue...
Then know that in real, real time...there are different levels that
it manages to...there are some that will be placed into the queue...
Amazes me why all the hubbub, as everyone, or most everyone has been
praising how wonderful the computerization of our vehicles have become...
To now complain of that computerization ?!?!?
Most any/all software is copyrighted
Yes, huge safety issue.
the only thing the driver really controls are the steering wheel, pedals
and that is pretty much all
Notice said 'steering wheel'...the computers today control the steering
wheel signals to the actual power steering unit (electric, the old
hydraulics still has a semi direct link)
Throttle is by wire. Meaning the pedal is connected to an electronic
sensor (potentiometer or some such) that then tells the computer what
the driver 'wants' and it will decide if it will or not listen
Folks should educate themselves by reading up on the legalities of
OS (operating systems), open source, source code and a host of other
software/computer technologies
Apple, Microsoft, etc all guard their OS and sue anyone, everyone who
touches it without a source license. Yes, they do publish API's, but
once you get into their OS itself, law suit.
My last job's OS was Solaris and just like Apple OS and MS based on
Cal Berkeley Unix 2.x. We also had an open source version that was
free and semi supported. Hope you folks understand that is one of their
crown jewels and is a revenue position (think of your own paycheck)
Now that just about everything on any vehicle is 'highly integrated'
and their buyers love the fact that everything is 'highly integrated'...now
be ready for the onerous side to crop up...they now own you via hos
the vehicle works/behaves/etc
Am glad Burbman commented that he knows that his Burb (GMT800) is
now a network (LAN). So true and more so with newer vehicles
I know a bit of this, as in the 90's GM gave my group at Sunlabs
a prototype EV2. JAVA was the buzz and on this proto, but it was flaky
and had a mind of it's own
My scientists were pulling their hair out, as JAVA was our invention.
Took a look at the logic diagram and noticed no real time (industrial
level, or real, real time...with hierarchical timing in whole to
fractions of milseconds) and the biggie...NO MASTER SLAVE established
Since no master established...they all thought they were masters...
Now folks...'we' have what 'we' asked for in our vehicles.
An example is the debates over my desire to have component trailer
brake controller that *I* can manage vs those who think 'highly
integrated' so much better...yes on the good days out there...but try
to diag a problem...it will take a computer tech/engineer and even then
if they don't have the right tools, almost impossible to tell if the
ABS computer is flaky, its sensors flaky, or the integration with the
toque management computer, or the transmission computer, or the ECU,
or whatever else is in that 'hightly integrated' system
I expect the tuner folks to go away for a while playing with the APIs
via poke it here and see what the computer does...till they 'think' they
have figured it out...but then, that is only on the good days and
what about the time when the computer systems lose a sensor over there
way, away from the tuner?
Someone should find out how many lines of code there is for EACH
computer and the system code level.
What level of 'real time' does it have. Real, real time is industrial
level, not what most computer folks 'think' is real time
Like a sensor says something is wrong...real, real time will set a
high order flag that will have the main computer slap all of the other
computers NOW (milliseconds)...not like most non real time system that
will just place that flag into the queue...
Then know that in real, real time...there are different levels that
it manages to...there are some that will be placed into the queue...
Amazes me why all the hubbub, as everyone, or most everyone has been
praising how wonderful the computerization of our vehicles have become...
To now complain of that computerization ?!?!?
Most any/all software is copyrighted
Yes, huge safety issue.
