When anti-stall fails...

When anti-stall fails...

Author
Discussion

Impasse

Original Poster:

15,099 posts

241 months

Tuesday 22nd July 2014
quotequote all
...is there any technical or Rulebook reason why the car can't chug back to the pits under electric power?

Crafty_

13,284 posts

200 months

Tuesday 22nd July 2014
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Would the electric motor be able to get the car rolling from standstill ? i.e. does it have enough torque ?

This is assuming that the ERS is charged whilst sat on the grid ? I guess it would be ?

Its an interesting question

CharlesAL

532 posts

124 months

Tuesday 22nd July 2014
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A few years ago the plan for the hybrid engines was to use only electric power in the pitlane, but that idea was rejected after a while. So I think they are capable of running on electric for a while.

Likes Fast Cars

2,770 posts

165 months

Wednesday 23rd July 2014
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Very interesting idea there. In theory electric motors should have enough torque to at least get the car moving.

Mikey G

4,730 posts

240 months

Wednesday 23rd July 2014
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As far as I know the MGU-K is connected directly to the engines crankshaft not to the transmission. This means it needs to turn the engine before it can turn the gearbox and wheels.

HarryFlatters

4,203 posts

212 months

Wednesday 23rd July 2014
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Mikey G said:
As far as I know the MGU-K is connected directly to the engines crankshaft not to the transmission. This means it needs to turn the engine before it can turn the gearbox and wheels.
I wonder if it'd have enough torque to bump-start the ICE? scratchchin

RGambo

849 posts

169 months

Wednesday 23rd July 2014
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Don't think the power is the issue, they are after all 160bhp motors. why they couldn't be used as starter motors to fire the ICE, I don't know, can't be that difficult to sort.

Mikey G

4,730 posts

240 months

Wednesday 23rd July 2014
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I would imagine the gearing to be pretty high as it needs to operate in the 10krpm+ region, something a starter motor doesn't do.

williamp

19,255 posts

273 months

Wednesday 23rd July 2014
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Im sure the toyota lmp cars this year leave the pits under full electric power, firing up the engine once on the move. Might save clutch wear too

John D.

17,841 posts

209 months

Wednesday 23rd July 2014
quotequote all
Crafty_ said:
Would the electric motor be able to get the car rolling from standstill ? i.e. does it have enough torque ?

This is assuming that the ERS is charged whilst sat on the grid ? I guess it would be ?

Its an interesting question
I would have thought so. The electric motor probably has more torque from standstill than the old V8s wink

On the subject of torque did everyone else enjoy the 11's Bottas laid down off the start in Germany? I did! What was interesting is he didn't fully light the tyres up straight away but quite some way into the 'launch'.


Mikey G

4,730 posts

240 months

Wednesday 23rd July 2014
quotequote all
The LMP hybrids tend to run a direct to wheel system, I believe looking online the Toyota runs a transmission based system to the rear and an extra system at the front soley for the front wheels. This means they can run the car without the engine running if the energy store has enough capacity to allow this. Mark Webber in this years Porsche did just that at LeMans when his engine failed.