[EVDL] EVDL uptime (was EVDL downtime)

2014-10-05 Thread EVDL Administrator via EV
Although there's still a slight possibility of glitches developing, the 
server maintenance should be effectively complete for tonight.  Thanks for 
your patience.



David Roden - Akron, Ohio, USA
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Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-05 Thread Klaus via EV
It's been going for a long, long time.  To mention just a few:
Too many people die due to not wearing seatbelt = seatbelt laws.
Ford Explorers roll over because of low tire pressure = mandated TPMS
sensors in ALL car tires.
Insurance companies paying out because so many cars are stollen = $$$ key
with ID transducer chip.
Record number of car companies being sued for record amounts for failure to
recall cars with (known to them) defects = ability to reprogram car,
including deactivating it if it might be unsafe.

I'm all for Right to Repair!  My dealership sucks big time. I want the right
to chose who repairs my car AND I'm willing to suffer whatever consequences
for not taking it to the dealership. I do as much of my own service as I
can, I take whatever repairs I want to an independent mechanic of MY choice
and I check over all the dealership only service because they screw things
up more often than not.

Big deal Tesla can deactivate the cars it built!  The Tesla is just a
computer designed to look and work like a car.  If it's your car then
reverse engineer the software  hardware and make it your own! Heck, you
could even go in and disable Tesla's ability to disable it.  Or talk to it. 
No, it's not easy, pretty near impossible, but not impossible and some of it
so simple as to be overlooked.  It's just a game of cat and mouse.




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Re: [EVDL] Really efficient electric drive trains and what they are?

2014-10-05 Thread Chris Tromley via EV
On Sat, Oct 4, 2014 at 10:42 PM, Lawrence Rhodes via EV ev@lists.evdl.org
wrote:

 When I saw the Stella it made growling ticking noises that stopped after
 the vehicle made some speed.  They said these motors were 98 % efficient.
 I thought the run of the mill ADC motor with a Curtis controller was 90 %
 and brushless were a bit more efficient.  Are these motors worth the 10's
 of thousands they cost?  Are there motorcycle/bicycle  hub motors we can
 buy that are very efficient?  Each of the Stella motors are 20kw.  Some
 bicycle hub motors are very powerful. 10 or more kw.   Is there a loss of
 efficiency with these new powerful motors?  What do I need to compliment a
 very aerodynamic body/go freeway speeds  not suck the life out of my
 batteries?


​I'm certainly no motor expert, but my understanding is ​that PM motors
only get that high efficiency at max power.  The cogging effect (the field
is always there) hurts efficiency everywhere else, and a road vehicle
spends virtually all of its time NOT at max power.  Other attractions of PM
motors are their relatively light weight and ease of implementing regen.

Those who have converted motorcycles have used these advantages, but some
have come to realize they come at a cost.  Light weight also means a
greater tendency to overheat.  Startup torque can be underwhelming.  Series
motors solve these issues nicely, and also coast freely.  I don't want to
re-start the coasting vs. regen debate, but coasting with no regen can be a
pretty effective range enhancement.

The other issue is hub motors.  To my knowledge, no-one has made these work
on an everyday on-road vehicle.  The main concern is unsprung weight, which
will be even more of an issue in a hyperlight car.  If you want to give a
try anyway I'd suggest scooter hub motors, because they have presumably
been designed to survive the pounding an unsprung component gets.  But the
ones I've seen have been designed more for cost than efficiency.

If it was me doing this, I'd probably go the Tropica route.  Use small
series motors near the drive wheels.  Use trailing arm suspension and mount
the motors at or near the trailing arm pivot, with belt or chain drive to
the wheels.  That should get you a solution close to what you're looking
for with low risk.  You're going to have your hands more than full with all
the other aspects of this vehicle.  Getting hub motors to work well is a
whole 'nother project by itself.

Chris
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Re: [EVDL] Really efficient electric drive trains and what they are?

2014-10-05 Thread EVDL Administrator via EV
On 5 Oct 2014 at 6:34, jerry freedomev via EV wrote:

 Having 16kw of battery , 250+ mile range is counter productive in a solar car
 as raises drag, makes hill starting harder,  and makes solar an afterthought
 really

Stella was designed to win a solar race.  It may be more passenger-
friendly and street-friendly than most solar racers, but it's safe to say 
that most design decisions were mainly focused on going as far and as fast 
as possible, while meeting all the rules of the race.  

Those rules govern how much PV square area it has, how big a battery, I 
think how much motor power, and probably much more.  I think all the rules 
are on the Solar Challenge website, if you're interested.

If you were designing a highly efficient street EV, you wouldn't have to 
meet those race rules, so you probably would (should) do things differently. 
You might have other rules to follow though, such as those which would make 
it licensable in your state.

David Roden - Akron, Ohio, USA
EVDL Administrator

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Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-05 Thread Lee Hart via EV

via EV wrote:

I gave myself an idea. Fill the battery boxes with a fluid. If the fluid is 
leaking after a wreck, the battery boxes have been compromised, so the car 
shouldn't be driven.


That's not a bad idea. Batteries also need heating and cooling. Fluids 
are a good way to add or remove heat. So the fluid could be circulated 
with a pump, and heated/cooled as needed. That would avoid the loss in 
range in cold weather, and shortened life in hot climates.


--
Failure is only the opportunity to begin again more intelligently.
-- Henry Ford
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Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-05 Thread Lee Hart via EV

Klaus via EV wrote:

It's been going for a long, long time. To mention just a few: [snip]...
It's just a game of cat and mouse.


A great summary, Klaus. And the cat has all the teeth and claws (money, 
lawyers and lobbyists).


You'll notice that car companies have gotten a lot smarter in dealing 
with safety concerns. They just used to deny they existed, and fight 
every change. Now, they find a fix where they can add cost and 
increase their profit margin.


Problem: Cars are easy to steal. Cheap, worthless locks.

Old way: Not our fault! We use the best locks $1 can buy! Blame the 
crooks. Blame the customer.


New way: Aha; let's use $2 locks, and make them so nobody but us can 
make keys. And we'll sell them for $100 each. We'll run the independent 
keymakers out of business, monopolize the key market, and make big 
money! Bwuoo hah hah ha!


So the automakers write the laws the way they like, and lobby and make 
campaign contributions to get Congress to implement them.



I'm all for Right to Repair!  My dealership sucks big time.


Same here. When the dealerships have a monopoly on parts and repairs, 
they inevitably turn into STEALerships. They can do bad work at high 
prices, and you don't have any choice.



Big deal Tesla can deactivate the cars it built!  The Tesla is just a
computer designed to look and work like a car.


It's been said that Microsoft has the perfect racket. A monopoly on PC 
operating systems, so they can charge a fortune for buggy software with 
a fake warranty. You only *think* you own the program; in fact, they can 
upgrade it any time they like to kill it, and force you to buy a new 
version.


I'm sure there are people in the auto industry that look hungrily at 
this business model, and want to apply it to cars.



If it's your car then reverse engineer the software  hardware and
make it your own!


You're calling for an automotive version of Linux. It could happen! :-)

At some point, consumers will have to stand up and say, Enough is 
enough! Learn to fix your own car (at least for the simpler things). 
Lobby for laws to protect YOUR rights. Hopefully, even contribute to 
open source efforts to unlock some of the automaker's little profit 
engines.

--
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-- Henry Ford
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Re: [EVDL] Open source software to control donor ICE's CPUs

2014-10-05 Thread Ben Goren via EV
On Oct 5, 2014, at 10:39 AM, HARSHA GODAVARI via EV ev@lists.evdl.org wrote:

 I wondered then, why has not some one written generic code to control the  
 factory installed  cpus.

The embedded systems in cars are varied and lacking in uniformity, and they're 
difficult to access and there's not a lot you'd normally want to customize. We 
see a little bit of chipping for eking out a few more horsepower from engines 
and that sort of thing...but how much do you really need to customize the 
software that turns on your turn signal indicator or times the fade-in fade-out 
of the dome light when you open the door?

The GEVCU project holds great promise for DIY electric vehicle conversions, but 
I have a difficult time imagining a future in which you'd see it or something 
similar in a new car from a major manufacturer, which would be the Linux 
parallel you're calling for.

Yes, of course: I'd absolutely love to live in such a future; I just don't at 
all expect to actually see it come to pass.

b
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Re: [EVDL] Open source software to control donor ICE's CPUs

2014-10-05 Thread Michael Ross via EV
Automotive CPU, MPU, ECU, etc. are often designed using in ASICs
(Application Specific Integrated Circuits) and nowadays FPGAs (Field Gate
Programmable Arrays).  The software is not served up by a drive, or kept on
a flashable EEPROM, it is literally built into the silicon.  Or in the case
of an FPGA it is mapped onto an all purpose Gate Array - essentially
hardware, not software. The OS is real time, or deterministic, so there is
less glitchiness and no need for fancy GUIs and such (there are certainly
higher level GUIs like Teslas, but at the functional level (not the wants
and needs of the operator level) of running the car, a deterministic
control system is very attractive.).

This is definitely the better way to operate equipment.  It may require the
original the development system to reprogram it.  Or it can only be
reprogrammed by replacing chips and boards - meaning it is very unlikely a
DIYer will have the ability to hack it.

Far more likely to strip off the salvaged control system and use more basic
systems.

Hard to see how a salvaged Tesla, with all its controls removed and DIY
ones installed would be a satisfactory result.   The OEM controls are the
result of many thousands of hours of programming by some of the best minds
silicon valley has to offer.

The reality is, cars have achieved levels of sophistication and function
with the Tesla,, and high end  ICE, that scratch built alternatives night
not be very popular.

On Sun, Oct 5, 2014 at 1:39 PM, HARSHA GODAVARI via EV ev@lists.evdl.org
wrote:

 Lee:
   You have taken words right out of my mouth :-) Thank you. Now I can put
 in my $0.02  A few days ago someone was complaining about the
 computerisation of cars, with control more  more in the hands of the
 manufacturers/cops/hackers.

 I wondered then, why has not some one written generic code to control the
 factory installed  cpus. After all Linux programmers have re-written
 drivers for a lot of proprietary hardware. If we have that open source, we
 could use more modern ICEs to convert instead of looking for pre'70s donors.

 regards
 harsha godavari

 - Original Message -
 From: Lee Hart via EV ev@lists.evdl.org

 Sent: Sun, 05 Oct 2014 11:12:54 -0600 (MDT)
 Subject: Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair
 drive! (video)


  If it's your car then reverse engineer the software  hardware and
  make it your own!

 You're calling for an automotive version of Linux. It could happen! :-)

 At some point, consumers will have to stand up and say, Enough is
 enough! Learn to fix your own car (at least for the simpler things).
 Lobby for laws to protect YOUR rights. Hopefully, even contribute to
 open source efforts to unlock some of the automaker's little profit
 engines.
 --
 Failure is only the opportunity to begin again more intelligently.
  -- Henry Ford
 --
 Lee Hart's EV projects are at http://www.sunrise-ev.com/LeesEVs.htm
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Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-05 Thread jerry freedomev via EV
Hi Lee and All,
  Of course there is a solution, a complete electronics transplant. 
 It's not like we haven't been doing that for 
decades now. 
Though what do you replace Tesla's with?  ACPropulsion has a nice electronics 
suite with 150kw charger?  Maybe Siemens? Maybe some no longer running EV bus 
electronics.  Azure Dynamics? 


Jerry Dycus 


On Sunday, October 5, 2014 1:12 PM, Lee Hart via EV ev@lists.evdl.org wrote:
  


Klaus via EV wrote:
 It's been going for a long, long time. To mention just a few: [snip]...
 It's just a game of cat and mouse.

A great summary, Klaus. And the cat has all the teeth and claws (money, 
lawyers and lobbyists).

You'll notice that car companies have gotten a lot smarter in dealing 
with safety concerns. They just used to deny they existed, and fight 
every change. Now, they find a fix where they can add cost and 
increase their profit margin.

Problem: Cars are easy to steal. Cheap, worthless locks.

Old way: Not our fault! We use the best locks $1 can buy! Blame the 
crooks. Blame the customer.

New way: Aha; let's use $2 locks, and make them so nobody but us can 
make keys. And we'll sell them for $100 each. We'll run the independent 
keymakers out of business, monopolize the key market, and make big 
money! Bwuoo hah hah ha!

So the automakers write the laws the way they like, and lobby and make 
campaign contributions to get Congress to implement them.

 I'm all for Right to Repair!  My dealership sucks big time.

Same here. When the dealerships have a monopoly on parts and repairs, 
they inevitably turn into STEALerships. They can do bad work at high 
prices, and you don't have any choice.

 Big deal Tesla can deactivate the cars it built!  The Tesla is just a
 computer designed to look and work like a car.

It's been said that Microsoft has the perfect racket. A monopoly on PC 
operating systems, so they can charge a fortune for buggy software with 
a fake warranty. You only *think* you own the program; in fact, they can 
upgrade it any time they like to kill it, and force you to buy a new 
version.

I'm sure there are people in the auto industry that look hungrily at 
this business model, and want to apply it to cars.

 If it's your car then reverse engineer the software  hardware and
 make it your own!

You're calling for an automotive version of Linux. It could happen! :-)

At some point, consumers will have to stand up and say, Enough is 
enough! Learn to fix your own car (at least for the simpler things). 
Lobby for laws to protect YOUR rights. Hopefully, even contribute to 
open source efforts to unlock some of the automaker's little profit 
engines.
-- 
Failure is only the opportunity to begin again more intelligently.
 -- Henry Ford
--
Lee Hart's EV projects are at http://www.sunrise-ev.com/LeesEVs.htm

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Re: [EVDL] Open source software to control donor ICE's CPUs

2014-10-05 Thread Adrian DeLeon via EV


On 10/05/2014 11:37 AM, Michael Ross via EV wrote:

Automotive CPU, MPU, ECU, etc. are often designed using in ASICs
(Application Specific Integrated Circuits) and nowadays FPGAs (Field Gate
Programmable Arrays).  The software is not served up by a drive, or kept on
a flashable EEPROM, it is literally built into the silicon.

snip

It may require the
original the development system to reprogram it.  Or it can only be
reprogrammed by replacing chips and boards - meaning it is very unlikely a
DIYer will have the ability to hack it.


That's exactly what chipping an ICE does. Replaces or reprograms a 
memory chip that contains data tables used by the car's software. It's a 
relatively safe process as you can only screw up the ICE's power profile 
and emissions output but can't cause the onboard computer (and maybe the 
car) to crash.


The only viable open source solution would be to design a carputer that 
can read the car's original sensors, process the data, and use that to 
control the fuel injection, dash, door locks, etc. In the case of a 
Tesla, it might run the charger/inverter. Unfortunately, most 
EV-specific hardware probably has its own computer system that expects 
to send/receive proprietary and possibly encrypted data - making it 
close to impossible to control with a DIY computer unless MUCH help and 
documentation is provided by the OEM.


Related story: A  friend of mine converted a 2000-ish VW Jetta using a 
series DC motor. His biggest headache was the low oil pressure buzzer in 
the instrument cluster. Without a valid reading, the buzzer would go off 
constantly. He cooked up a circuit that would send a normal oil 
pressure reading, then proceeded to get startled at every stoplight! The 
dash computer would see the motor RPM drop to 0, notice the oil pressure 
was still normal... and set the buzzer off! Don't know if he ever 
managed to trick the instrument cluster into staying quiet. Didn't want 
to kill the buzzer as it is also used as a headlight reminder, seatbelt 
warning, etc.


-Adrian

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Re: [EVDL] Open source software to control donor ICE's CPUs

2014-10-05 Thread Michael Kadie via EV
So in general there is a huge liability issue from the OEM having to do with 
air bag time, fly-by-wire pedals etc.
That said here is a project I saw at the Detroit Electric and Hybrid vehicle 
show

http://www.pi-innovo.com/products/openecu
When I talked with them they mentioned that they felt their hardware was a 
good fit for prototype vehicles and conversions.


Michael 'T-Rex' Kadie
-Original Message- 
From: Adrian DeLeon via EV

Sent: Sunday, October 05, 2014 6:06 PM
To: Electric Vehicle Discussion List
Subject: Re: [EVDL] Open source software to control donor ICE's CPUs


On 10/05/2014 11:37 AM, Michael Ross via EV wrote:

Automotive CPU, MPU, ECU, etc. are often designed using in ASICs
(Application Specific Integrated Circuits) and nowadays FPGAs (Field Gate
Programmable Arrays).  The software is not served up by a drive, or kept 
on

a flashable EEPROM, it is literally built into the silicon.

snip

It may require the
original the development system to reprogram it.  Or it can only be
reprogrammed by replacing chips and boards - meaning it is very unlikely a
DIYer will have the ability to hack it.


That's exactly what chipping an ICE does. Replaces or reprograms a
memory chip that contains data tables used by the car's software. It's a
relatively safe process as you can only screw up the ICE's power profile
and emissions output but can't cause the onboard computer (and maybe the
car) to crash.

The only viable open source solution would be to design a carputer that
can read the car's original sensors, process the data, and use that to
control the fuel injection, dash, door locks, etc. In the case of a
Tesla, it might run the charger/inverter. Unfortunately, most
EV-specific hardware probably has its own computer system that expects
to send/receive proprietary and possibly encrypted data - making it
close to impossible to control with a DIY computer unless MUCH help and
documentation is provided by the OEM.

Related story: A  friend of mine converted a 2000-ish VW Jetta using a
series DC motor. His biggest headache was the low oil pressure buzzer in
the instrument cluster. Without a valid reading, the buzzer would go off
constantly. He cooked up a circuit that would send a normal oil
pressure reading, then proceeded to get startled at every stoplight! The
dash computer would see the motor RPM drop to 0, notice the oil pressure
was still normal... and set the buzzer off! Don't know if he ever
managed to trick the instrument cluster into staying quiet. Didn't want
to kill the buzzer as it is also used as a headlight reminder, seatbelt
warning, etc.

-Adrian

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Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-05 Thread EVDL Administrator via EV
Back when cpu cycles were expensive, automakers mostly used the minimum 
amount of processor power necessary to control emissions and air bags.  As 
memory and cpus got to where they cost pennies, they realized that they 
could control a lot more with them.  They could make the dome light fade in 
and out.  They could keep people from buying cheaper used parts.  They could 
prove that when the wreck happened, the driver had his foot on the 
accelerator, not the brake.  They could shut down the vehicle if the owner 
didn't do what the purchase or lease agreement stipulated.

As we're seeing in almost every other area where computers are involved - 
which is just about everywhere - Moore's law has turned out to be the 
proverbial double-edged sword.  

But that's another discussion for another list, I suppose.

For the purposes of this list, let's just say that maybe some EV converters 
have other reasons to wear an EV grin besides it's clean and quiet, and it 
passes all the gas stations.

David Roden - Akron, Ohio, USA
EVDL Administrator

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Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-05 Thread Peter C. Thompson via EV
Sadly, due to my exposure to OEM representatives  (auto makers), I can 
safely say that they will cut every penny out where they can.  For 
example, I was talking to one standards representative (I won't say the 
company name, as it is pretty much the same everywhere), and they could 
not support TLS on their computers and would not upgrade the computer 
until there was a strong need. The computer would be dealing with 
billing for the power used to charge the vehicle!!!


Sheesh.

On 10/5/14, 8:54 PM, EVDL Administrator via EV wrote:

Back when cpu cycles were expensive, automakers mostly used the minimum
amount of processor power necessary to control emissions and air bags.  As
memory and cpus got to where they cost pennies, they realized that they
could control a lot more with them.  They could make the dome light fade in
and out.  They could keep people from buying cheaper used parts.  They could
prove that when the wreck happened, the driver had his foot on the
accelerator, not the brake.  They could shut down the vehicle if the owner
didn't do what the purchase or lease agreement stipulated.

As we're seeing in almost every other area where computers are involved -
which is just about everywhere - Moore's law has turned out to be the
proverbial double-edged sword.

But that's another discussion for another list, I suppose.

For the purposes of this list, let's just say that maybe some EV converters
have other reasons to wear an EV grin besides it's clean and quiet, and it
passes all the gas stations.

David Roden - Akron, Ohio, USA
EVDL Administrator

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Re: [EVDL] EValert: !Don't buy a salvaged Tesla EV to repair drive! (video)

2014-10-05 Thread Ben Goren via EV
On Oct 5, 2014, at 9:21 PM, Peter C. Thompson via EV ev@lists.evdl.org wrote:

 [T]hey could not support TLS on their computers and would not upgrade the 
 computer until there was a strong need. The computer would be dealing with 
 billing for the power used to charge the vehicle!!!

Then it won't be long before people start charging their cars for free. Those 
kinds of hacks, especially when encryption is lacking, are trivial for those in 
the industry -- and I mean electronics, not automotive. It's pretty much a 
given that somebody in Silicon Valley soon will or already has read your words 
here (or a similar report from somebody else) and is already reaching for the 
logic analyzer to start sniffing the wires in the car sitting in his garage

b
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