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bitrex
Guest

Thu Apr 30, 2020 4:45 am   



On 4/28/2020 3:40 PM, Michael Terrell wrote:
Quote:
On Tuesday, April 28, 2020 at 2:30:36 PM UTC-4, Ricky C wrote:
On Tuesday, April 28, 2020 at 1:03:34 PM UTC-4, Michael Terrell wrote:
On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher wrote:
Michael Terrell writes:

Prior to the pig being replaced, the only time I could use AM was during=
power outages, or after a hurricane. It wasn't dirty insulators, since it =
was the same before, during and after rain.

And not when a Tesla drives by. Teslas do not have AM band on
their radios. You can guess why....


Poor design of the motor controls and little or no shielding? A decent AM radio design was more complex than all of the electronics in a Tesla?

Demographics. Tesla really isn't targeting the market that includes many AM listeners. I can't remember the last time I listened to AM radio in any venue.

Cars have to meet part 15 emission standards like any other device. Unlike ICE, electric batteries and motors don't have wear parts in the electrical path that degrade and generate emissions.

I guess the FM radio LO might emit a bit.

I've never understood why people would hate an entire car company when they've never owned a product. Is it the idea of doing something that other companies said wasn't practical? Is it the idea of the cars themselves? Tesla hate just seems so totally irrational to me. That's why I understand Larkin hating them.


I've never had 100% third degree burns, either. Not that I want either. I do tire of all the fanboi BS about them, and your continuous spam about them. That does more to make me not want something than anything else. Most advertising bores me to tears, especially the 'All of our customers are idiots' style that is so popular today.


No worries, there are lots of other brands you can buy. The
recently-discontinued Chevy Volt, well, they didn't much advertise it at
all.

The 2015 is a pretty good value at just below 15k these days for low
miles examples. Last of the first generation. I like the brown:

<https://www.carmax.com/car/18858805>

bitrex
Guest

Thu Apr 30, 2020 5:45 am   



On 4/28/2020 2:30 PM, Ricky C wrote:
Quote:
On Tuesday, April 28, 2020 at 1:03:34 PM UTC-4, Michael Terrell wrote:
On Tuesday, April 28, 2020 at 12:31:38 AM UTC-4, David Lesher wrote:
Michael Terrell writes:

Prior to the pig being replaced, the only time I could use AM was during=
power outages, or after a hurricane. It wasn't dirty insulators, since it =
was the same before, during and after rain.

And not when a Tesla drives by. Teslas do not have AM band on
their radios. You can guess why....


Poor design of the motor controls and little or no shielding? A decent AM radio design was more complex than all of the electronics in a Tesla?

Demographics. Tesla really isn't targeting the market that includes many AM listeners. I can't remember the last time I listened to AM radio in any venue.

Cars have to meet part 15 emission standards like any other device. Unlike ICE, electric batteries and motors don't have wear parts in the electrical path that degrade and generate emissions.

I guess the FM radio LO might emit a bit.

I've never understood why people would hate an entire car company when they've never owned a product. Is it the idea of doing something that other companies said wasn't practical? Is it the idea of the cars themselves? Tesla hate just seems so totally irrational to me. That's why I understand Larkin hating them.


I filled the Volt's ~8 gallon tank for just under $10 the other day,
thanks to the low gas prices and a few Shell fuel-rewards points I had
lying around. I think I've put in a full tank of gas maybe three times
since I got it. Should last a while

David Lesher
Guest

Thu Apr 30, 2020 7:45 am   



Ricky C <gnuarm.deletethisbit_at_gmail.com> writes:

Quote:
On Wednesday, April 29, 2020 at 9:27:24 PM UTC-4, David Lesher wrote:

Actually, sharp transitions in current are hard to obtain. Motors have lot=
s of inductance and the DC/DC converter circuits all have lots of inductanc=
e. There is a whole sub-field regarding reduction of EMI and there is no r=
eason to think EVs have any problems keeping it under control.= 20


Well, two friends and I built an electric Miata. We had many issues
with motor controller RFI getting into various A/D's on it.

--
A host is a host from coast to coast.................wb8foz_at_nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Ricky C
Guest

Thu Apr 30, 2020 7:45 am   



On Thursday, April 30, 2020 at 2:19:33 AM UTC-4, David Lesher wrote:
Quote:
Ricky C <gnuarm.deletethisbit_at_gmail.com> writes:

On Wednesday, April 29, 2020 at 9:27:24 PM UTC-4, David Lesher wrote:

Actually, sharp transitions in current are hard to obtain. Motors have lot=
s of inductance and the DC/DC converter circuits all have lots of inductanc=
e. There is a whole sub-field regarding reduction of EMI and there is no r=
eason to think EVs have any problems keeping it under control.= 20


Well, two friends and I built an electric Miata. We had many issues
with motor controller RFI getting into various A/D's on it.


What was the source of the RFI? Was it RFI or conducted? Did you solve the issues eventually? Do you think a major company can't resolve the issues?

I assume you understand the difference between conducted EMI and radiated RFI.

--

Rick C.

+-+ Get 1,000 miles of free Supercharging
+-+ Tesla referral code - https://ts.la/richard11209


Guest

Thu Apr 30, 2020 1:45 pm   



Ricky C <gnuarm.deletethisbit_at_gmail.com> wrote in
news:c182513b-e5bd-4d82-9dbc-c35e6493a1e0_at_googlegroups.com:

Quote:
On Thursday, April 30, 2020 at 2:19:33 AM UTC-4, David Lesher
wrote:
Ricky C <gnuarm.deletethisbit_at_gmail.com> writes:

On Wednesday, April 29, 2020 at 9:27:24 PM UTC-4, David Lesher
wrote:

Actually, sharp transitions in current are hard to obtain.
Motors have lot= s of inductance and the DC/DC converter
circuits all have lots of inductanc= e. There is a whole
sub-field regarding reduction of EMI and there is no r= eason to
think EVs have any problems keeping it under control.= 20


Well, two friends and I built an electric Miata. We had many
issues with motor controller RFI getting into various A/D's on
it.

What was the source of the RFI? Was it RFI or conducted? Did you
solve the issues eventually? Do you think a major company can't
resolve the issues?

I assume you understand the difference between conducted EMI and
radiated RFI.


And off the shelf motor controllers which were well designed and
shielded/clamped.

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