Honda Power Unit Hardware & Software

[gruntguru]

Can anyone say wHat is the difference between SCCI and HCCI?

Stratified Charge Compression Ignition. Deliberately stratified so combustion begins in a rich core and spreads into the lean main charge.

Homogeneous Charge Compression Ignition. Constant AFR throughout so that ignition occurs simultaneously at multiple sites throughout the chamber.

[Pro4TLZZ]

engine upgrades on the way
http://www.marca.com/motor/formula1/gp- ... b4787.html
Article translated .
H wave has led to Barcelona for this weekend, two different engines. The specification that had been using from Australia and a new that, as already announced MARK, incorporates new tokens of parts in the turbo and MGU-H (heat generator). The decision whether to use the new drive in the race or is left for the test next week in Montmelo, will be taken today.Although the head of Honda, Yusuke Hasegawa, spoke last week that it would not spend any of the 16 tokens remaining them to have a great improvement, his words are part of a new communication policy, which is not they want to make public the inconspicuous steps. They prefer to announce improvements in Canada when changes were also made in the unit internal combustion engine (ICE) and the plenum chamber (intake chamber) of the power unit. In Montreal itself have assured that there will be a very visible jump in performance.If finally the new version in Montmelo this weekend is used, it is assumed that the time around will not improve appreciably. The gain would be placed along the overall race, where long periods of fuel would be shortened.

[R_GoWin]

Can anyone say wHat is the difference between SCCI and HCCI?

Coincidentally an article on HCCI in spark ignited engines has just been published in the latest issue of Engine Tech magazine - on how it works, the challenges, so on and so forth. (click on the article to zoom to read - works well on desktop).

http://viewer.zmags.com/publication/6d1 ... d1d3a22/36

Some interesting things that stood out for me was:

- HCCI is not being approached as a separate engine, but only an engine mode within SI at certain operating points
- that a HCCI + SI gives greater efficiency than just turbocharged SI
- its not HCCI as well - but along with a whole host of other CI strategies are simply called low temperature combustion (LTC) or Gasoline direct injection compression ignition (GDCI)
- the traditional HCCI was down on efficiency due to lower temperatures from going lean - and not having enough heat for complete oxidation of CO species. This was tackled by keeping the charge to the middle and burning hotter in that region, which improved combustion efficiency.
- Hence its not homogenous as well, but the charge is in fact deliberately stratified to improve its efficiency over downsized turbocharged SI
- big torque and fuel efficiency improvements
- about 5 to 10 years of research away for being a production engine. But Mazda, aiming it for its next generation of Skyactive-G, along with GM, Kia, Hyundai etc.

[godlameroso]

engine upgrades on the way
http://www.marca.com/motor/formula1/gp- ... b4787.html
Article translated .
H wave has led to Barcelona for this weekend, two different engines. The specification that had been using from Australia and a new that, as already announced MARK, incorporates new tokens of parts in the turbo and MGU-H (heat generator). The decision whether to use the new drive in the race or is left for the test next week in Montmelo, will be taken today.Although the head of Honda, Yusuke Hasegawa, spoke last week that it would not spend any of the 16 tokens remaining them to have a great improvement, his words are part of a new communication policy, which is not they want to make public the inconspicuous steps. They prefer to announce improvements in Canada when changes were also made in the unit internal combustion engine (ICE) and the plenum chamber (intake chamber) of the power unit. In Montreal itself have assured that there will be a very visible jump in performance.If finally the new version in Montmelo this weekend is used, it is assumed that the time around will not improve appreciably. The gain would be placed along the overall race, where long periods of fuel would be shortened.

Lol @ Honda = H wave

Slightly better translation (I am a spanish speaker):
Honda brought two different spec engines to Spain, the same one they've been running since Australia, and a new spec with changes to the turbo and MGU-H. Today they'll determine if they're going to use the new spec engine for the race, or leave it for the after race test. Honda has a new policy in that it will not reveal small steps made on the power unit, and rather it will make announcements only when significant changes have been made. They go on to say that they will announce a large development step only when they make it to Canada because that involves changes to the intake trumpets and combustion chambers. They expect that this will give them a nice boost in fuel economy during the race, so their overall one lap pace may not improve, but rather they'll be able to extract the full potential of the car during the race./translation

[maguetox]

engine upgrades on the way
http://www.marca.com/motor/formula1/gp- ... b4787.html
Article translated .
H wave has led to Barcelona for this weekend, two different engines. The specification that had been using from Australia and a new that, as already announced MARK, incorporates new tokens of parts in the turbo and MGU-H (heat generator). The decision whether to use the new drive in the race or is left for the test next week in Montmelo, will be taken today.Although the head of Honda, Yusuke Hasegawa, spoke last week that it would not spend any of the 16 tokens remaining them to have a great improvement, his words are part of a new communication policy, which is not they want to make public the inconspicuous steps. They prefer to announce improvements in Canada when changes were also made in the unit internal combustion engine (ICE) and the plenum chamber (intake chamber) of the power unit. In Montreal itself have assured that there will be a very visible jump in performance.If finally the new version in Montmelo this weekend is used, it is assumed that the time around will not improve appreciably. The gain would be placed along the overall race, where long periods of fuel would be shortened.

Lol @ Honda = H wave

Slightly better translation (I am a spanish speaker):
Honda brought two different spec engines to Spain, the same one they've been running since Australia, and a new spec with changes to the turbo and MGU-H. Today they'll determine if they're going to use the new spec engine for the race, or leave it for the after race test. Honda has a new policy in that it will not reveal small steps made on the power unit, and rather it will make announcements only when significant changes have been made. They go on to say that they will announce a large development step only when they make it to Canada because that involves changes to the intake trumpets and combustion chambers. They expect that this will give them a nice boost in fuel economy during the race, so their overall one lap pace may not improve, but rather they'll be able to extract the full potential of the car during the race./translation

Marca, as much as other media only knows about soccer; in F1 they are the less reliable source of F1 information.

[PlatinumZealot]

engine upgrades on the way
http://www.marca.com/motor/formula1/gp- ... b4787.html
Article translated .
H wave has led to Barcelona for this weekend, two different engines. The specification that had been using from Australia and a new that, as already announced MARK, incorporates new tokens of parts in the turbo and MGU-H (heat generator). The decision whether to use the new drive in the race or is left for the test next week in Montmelo, will be taken today.Although the head of Honda, Yusuke Hasegawa, spoke last week that it would not spend any of the 16 tokens remaining them to have a great improvement, his words are part of a new communication policy, which is not they want to make public the inconspicuous steps. They prefer to announce improvements in Canada when changes were also made in the unit internal combustion engine (ICE) and the plenum chamber (intake chamber) of the power unit. In Montreal itself have assured that there will be a very visible jump in performance.If finally the new version in Montmelo this weekend is used, it is assumed that the time around will not improve appreciably. The gain would be placed along the overall race, where long periods of fuel would be shortened.

Thanks. This makes sense to me. Honda is using the power tracks to introduce the engine updates and process changes. They used Russia - a power track to test how durable their engine is when Qualifying mode is activated throughout the entire race. and found that the engine was indeed reliable but extremely fuel thirsty. The next step now is to raise the power threshold again in Barca - but no tokens and that explains why Hasegawa said the lap time won't drop appreciably. Then it would be Canada and then Spa/Monza when the new tokens are spent.

[GoranF1]

Wazari

Renault factory cars were 2/10 faster than Mclaren Honda in S1...slower 2/10 in S2 and slower 5/10 in S3.
Sounds like Renault has a bit more power still.

[Sasha]

Honda has no performance upgrades yet. Testing turbine and ERS upgrades(no tokens) at the test after the race.

Because they only have 14 tokens left,they must be very careful when to use them.(only for major performance improvement will they use them) So do not expect that until mid-Summer(Spa?) and maybe new fuel for Canada.(15-20hp)

[GoranF1]

So Mercedes and Ferrari have it, Renault will have it in Canada, not a single word about Honda.
[media]https://twitter.com/SomersF1/status/731526393952145408[/media]

[godlameroso]

Wazari

Renault factory cars were 2/10 faster than Mclaren Honda in S1...slower 2/10 in S2 and slower 5/10 in S3.
Sounds like Renault has a bit more power still.

Mclaren/Honda could be running a lot more downforce than Renault.

[mikeerfol]

Honda has no performance upgrades yet. Testing turbine and ERS upgrades(no tokens) at the test after the race.

Because they only have 14 tokens left,they must be very careful when to use them.(only for major performance improvement will they use them) So do not expect that until mid-Summer(Spa?) and maybe new fuel for Canada.(15-20hp)

https://twitter.com/andihaupt1/status/7 ... 3494334468

[ringo]

F1T and not Mark Hughes should be taking the credit for unravelling the TJI secret. But anyhow, those guys probably are members here.

[GoranF1]

Boulier said Canada PU upgrade(token+fuel) will give 0.3 sec.

Renault is expecting 0.5 sec

[GoranF1]

Max Verstapen says Renault PU is better than 2015 Ferrari in TR.

All the Honda better than Renault story can end now...Honda is worse engine on grid.

[Sayeman]

Max Verstapen says Renault PU is better than 2015 Ferrari in TR.

All the Honda better than Renault story can end now...Honda is worse engine on grid.

Didn't Merc say that the Honda engine is faster than 2015 Ferrari PU?
They had the GPS data to prove it?