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Author Topic: Hybrids  (Read 575 times)
Nickel2
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« on: June 17, 2017, 04:08:29 PM »

It's the 24 hrs du Mans on at the moment. Toyota are running hybrids and hopefully the racing experience and technology will continue to improve the road cars. (Live on various sports channels).
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« Reply #1 on: June 17, 2017, 08:26:46 PM »

Pretty sure that all the LMP1 cars are hybrids of some sort - Audi won Le Mans for about 5 years straight with their diesel hybrid (although they withdrew from endurance car racing at the end of last season), and Porsche won last year with something similar?  Essentially the energy recovery permits more power on acceleration, and improves overall fuel economy so fewer pit stops. 

I think there are plans to change the rules for LMP cars from 2020 such that they will be required to run a certain distance of the race on pure electric only - so they're looking starting to look at ways of permitting rapid battery charging during pit stops for tyres/driver changes.  I would have thought charging the EV batteries at 300kW whilst re-fuelling at the same time would be rather too much of a fire hazard?!
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bxman
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« Reply #2 on: June 18, 2017, 12:43:09 PM »

http://www.porsche.com/specials/en/uk/lemans/live/


before 1400 BST on 18th June
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dan_b
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« Reply #3 on: June 18, 2017, 01:14:08 PM »

So the Porsche 919 has a 2litre petrol motor producing 500BHP driving the rear wheels, and a >400BHP electric motor, charged by KERS, driving the front wheels.
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TheFairway
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« Reply #4 on: June 18, 2017, 01:28:42 PM »

The 2012 LeMans winning Audi R18 e-tron Quattro used the Williams flywheel system as its accumulator although i dont think that this was still used at the end of the R18's reign. Iirc t was removed due to regulations rather than bettered by battery. I think some of the London buses use a variation of that technology but i guess battery technology has surpassed it now. Iirc Wiliams sold off that part of the group once it was clear that it was not going to be the way forward in Formula One but may be wrong. Williams ended up supplying the battery for Formula-E.

The R18 was iconic vehicle that helped show the benefits of hybrid energy at one of the pinnacles of motorsport.
« Last Edit: June 18, 2017, 01:31:40 PM by TheFairway » Logged

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Westie
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« Reply #5 on: June 18, 2017, 04:22:09 PM »

Supercaps and hybrids are well matched and may hit the road shortly.

BMW and Toyota will manufacture the Z4 and Supra on the same line, at a combined volume of up to 60,000 vehicles per annum. Both are all-wheel drive hybrids, with a BMW petrol engine and electric motors. Energy should be stored in supercapacitors. A seven-year lifecycle is expected, with the cars due for release during 2018.

https://www.autocar.co.uk/car-news/new-cars/2017-toyota-supra-spy-pics-specs-and-launch-date


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Nickel2
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« Reply #6 on: June 18, 2017, 07:32:25 PM »

Holy mackerel! I had a look at the link on the above site to the Yaris hybrid. The wealthier yaris buyer will opt for the 415 BHP version because they can afford it. I will head for the nearest air-raid shelter.  facepalm The gutter-press will have a field-day with this one:
"Shock Horror as Green car kills unwary pensioner". facepalm


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« Reply #7 on: June 19, 2017, 12:19:20 PM »

Even though every Le Mans since 2012 has been won by a hybrid, Toyota are questioning the suitability of hybrid technology in endurance racing as extreme as Le Mans.
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« Reply #8 on: June 19, 2017, 12:25:29 PM »

What a strange article. Their first repair was a clutch failure, so presumably not related to the hybrid at all?  As noted, every LMP1 victory since 2012 has been a hybrid
Major mechanical issues are part and parcel of racing, and indeed even more so in WEC where it's possible/necessary to fix the thing and get back out, unlike in F1.
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