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I suspect that would be something that would find it's way to production ca=
rs at some point, although think that turbo lag (at least in terms of what'=
sacceptable for road cars) is really a thing of the past. I recall that my =
'82 Volvo GLT Turbo sedan (MG content: used the same electric O/D as the MG=
B!)had a pretty decent amount of lag, although the rush when the turbo kick=
ed in was a lot of fun!
Didn't a limited-edition Mustang actually have a supercharger and a turbo, =
the point of the S/C being to reduce the lag time on the boosted power? Mig=
htbe wrong about that.
Dan D'76B, '65BCentral NJ USA From: Rick Lindsay via Mgs <mgs@autox.tea=
m.net>
To: "mgs@autox.team.net List" <mgs@autox.team.net>=20
Sent: Thursday, March 5, 2015 7:46 AM
Subject: [Mgs] Too quiet so OT, F1 related
=20
Hello friends,
Any of you studied the MGU-H part of Formula One's ERS? It has one really n=
ovel bit. I'll get to that, but first, an ERS overview...
MGU-K (Motor Generator Unit - Kinetic) is just a generator/motor on the pet=
rol engine crank that utilizes otherwise wasted kinetic energy, say, under =
braking - or even adding to braking since in generator mode, the MGU-K abso=
rbs kinetic energy. (Given clandestine electronics, could this not be a for=
m of power assisted brakes or even ABS?) Under acceleration, the unit funct=
ions as an electric motor adding power to the petrol engine's output.
MGU-H (Motor Generator Unit - Heat) is also a generator/motor bit but on th=
e turbocharger. I can see why they call this a Heat device but I think that=
's really a misnomer since it too is using kinetic energy, just from the tu=
rbo shaft rather than the crank. Anyway, the MGU-H generates electricity fr=
om otherwise wasted turbo speed. Said another way; When the turbine is atte=
mpting to spin faster than the compressor needs, say, when the driver lifts=
. As such, its a mechanical waste gate - just without wasting the kinetic e=
nergy as excess pressure.
The clever bit that caused me to write this excessively boring post is that=
the MGU-H also acts as a motor to spin up the compressor before the turbin=
e comes into full play. Therefore the MGU-H helps negate turbo lag! That's =
pretty cool! If '80s era 911s had that, their back ends wouldn't pass their=
front ends quite as often!
Okay, back to your regularly scheduled program, already in progress.
-rick
Happy Connecting. Sent from my Sprint Samsung Galaxy S=C2=AE 5
_______________________________________________
Mgs@autox.team.net
Archive: http://www.team.net/archive
Unsubscribe: http://autox.team.net/mailman/options/mgs/d_dibiase@yahoo.com
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<html><body><div style=3D"color:#000; background-color:#fff; font-family:He=
lveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;fo=
nt-size:13px"><div id=3D"yui_3_16_0_1_1425559447512_6854" dir=3D"ltr">I sus=
pect that would be something that would find it's way to production cars at=
some point, although think that turbo lag (at least in terms of what's</di=
v><div id=3D"yui_3_16_0_1_1425559447512_6855" dir=3D"ltr">acceptable for ro=
ad cars) is really a thing of the past. I recall that my '82 Volvo GLT Turb=
o sedan (MG content: used the same electric O/D as the MGB!)</div><div id=
=3D"yui_3_16_0_1_1425559447512_6858" dir=3D"ltr">had a pretty decent amount=
of lag, although the rush when the turbo kicked in was a lot of fun!</div>=
<div id=3D"yui_3_16_0_1_1425559447512_6887" dir=3D"ltr"><br></div><div id=
=3D"yui_3_16_0_1_1425559447512_6908" dir=3D"ltr">Didn't a limited-edition M=
ustang actually have a supercharger and a turbo, the point of the S/C being=
to reduce the lag time on the boosted power? Might</div><div id=3D"yui_3_1=
6_0_1_1425559447512_6909" dir=3D"ltr">be wrong about that.<br></div><div id=
=3D"yui_3_16_0_1_1425559447512_6875" dir=3D"ltr"><br></div><div id=3D"yui_3=
_16_0_1_1425559447512_6910" dir=3D"ltr">Dan D</div><div id=3D"yui_3_16_0_1_=
1425559447512_6911" dir=3D"ltr">'76B, '65B</div><div id=3D"yui_3_16_0_1_142=
5559447512_6912" dir=3D"ltr">Central NJ USA</div><div id=3D"yui_3_16_0_1_14=
25559447512_6915" style=3D"font-family: HelveticaNeue, Helvetica Neue, Helv=
etica, Arial, Lucida Grande, sans-serif; font-size: 13px;"> <div id=3D"yui_=
3_16_0_1_1425559447512_6914" style=3D"font-family: HelveticaNeue, Helvetica=
Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div=
id=3D"yui_3_16_0_1_1425559447512_6913" dir=3D"ltr"> <hr size=3D"1"> <font=
id=3D"yui_3_16_0_1_1425559447512_6916" face=3D"Arial" size=3D"2"> <b><span=
style=3D"font-weight:bold;">From:</span></b> Rick Lindsay via Mgs <mgs@=
autox.team.net><br> <b><span style=3D"font-weight: bold;">To:</span></b>=
"mgs@autox.team.net List" <mgs@autox.team.net> <br> <b><span style=
=3D"font-weight: bold;">Sent:</span></b> Thursday, March 5, 2015 7:46 AM<br=
> <b><span style=3D"font-weight: bold;">Subject:</span></b> [Mgs] Too quiet=
so OT, F1 related<br> </font> </div> <div id=3D"yui_3_16_0_1_1425559447512=
_6920" class=3D"y_msg_container"><br><div id=3D"yiv7773721308"><div id=3D"y=
ui_3_16_0_1_1425559447512_6919">
=20
<div id=3D"yui_3_16_0_1_1425559447512_6918"><div id=3D"yui_3_16_0_1_1425559=
447512_6917">Hello friends,</div><div id=3D"yui_3_16_0_1_1425559447512_6921=
"><br></div><div id=3D"yui_3_16_0_1_1425559447512_6922">Any of you studied =
the MGU-H part of Formula One's ERS? It has one really novel bit. I'll get =
to that, but first, an ERS overview...</div><div id=3D"yui_3_16_0_1_1425559=
447512_6923"><br></div><div id=3D"yui_3_16_0_1_1425559447512_6924">MGU-K (M=
otor Generator Unit - Kinetic) is just a generator/motor on the petrol engi=
ne crank that utilizes otherwise wasted kinetic energy, say, under braking =
- or even adding to braking since in generator mode, the MGU-K absorbs kine=
tic energy. (Given clandestine electronics, could this not be a form of pow=
er assisted brakes or even ABS?) Under acceleration, the unit functions as =
an electric motor adding power to the petrol engine's output.</div><div><br=
></div><div>MGU-H (Motor Generator Unit - Heat) is also a generator/motor b=
it but on the turbocharger. I can see why they call this a Heat device but =
I think that's really a misnomer since it too is using kinetic energy, just=
from the turbo shaft rather than the crank. Anyway, the MGU-H generates el=
ectricity from otherwise wasted turbo speed. Said another way; When the tur=
bine is attempting to spin faster than the compressor needs, say, when the =
driver lifts. As such, its a mechanical waste gate - just without wasting t=
he kinetic energy as excess pressure.</div><div><br></div><div>The clever b=
it that caused me to write this excessively boring post is that the MGU-H a=
lso acts as a motor to spin up the compressor before the turbine comes into=
full play. Therefore the MGU-H helps negate turbo lag! That's pretty cool!=
If '80s era 911s had that, their back ends wouldn't pass their front ends =
quite as often!</div><div><br></div><div>Okay, back to your regularly sched=
uled program, already in progress.</div><div><br></div><div>-rick</div></di=
v><div><br></div><div id=3D"yiv7773721308composer_signature"><div style=3D"=
font-size:85%;color:#575757;">Happy Connecting. Sent from my Sprint Samsung=
Galaxy S=C2=AE 5</div></div></div></div><br>______________________________=
_________________<br><br><a ymailto=3D"mailto:Mgs@autox.team.net"; href=3D"m=
ailto:Mgs@autox.team.net">Mgs@autox.team.net</a><br>Donate: <a href=3D"http=
://www.team.net/donate.html" target=3D"_blank">http://www.team.net/donate.h=
tml</a><br>Suggested annual donation $12.75<br>Archive: <a href=3D"ht=
tp://www.team.net/archive" target=3D"_blank">http://www.team.net/archive</a=
><br>Forums: <a href=3D"http://www.team.net/forums"; target=3D"_blank">http:=
//www.team.net/forums</a><br>Unsubscribe: <a href=3D"http://autox.team.net/=
mailman/options/mgs/d_dibiase@yahoo.com" target=3D"_blank">http://autox.tea=
m.net/mailman/options/mgs/d_dibiase@yahoo.com</a><br><br><br></div> </div> =
</div> </div></body></html>
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_______________________________________________
Mgs@autox.team.net
Archive: http://www.team.net/archive
Unsubscribe: http://autox.team.net/mailman/options/mgs/mharc@autox.team.net
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