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Discussion starter · #142 ·
The DCT is in house?
The 7DCT Volvo is using in their, at least European, XC40, S60 and V60 models is the Aurobay 7DCT EVO 380. Aurobay was previously a part of Volvo and since Volvo now wants to distance itself from pollutant technology they established their ICE department as a separate company a few years ago.


A bit off topic, my geek side got the better of me, regarding the technical details of the gearbox, I can only confirm that the 7DCT EVO 380 is being utilized in their B4 models that are working according to the Miller cycle principle. I don't know what transmission is inside the B3. It could also be the 380 or possibly the less powerful 300 model. The 380 is capable of a torque input of 380 Nm and a similar story is for the 300 model. It's also worth mentioning that the B4 engine is capable of pushing out 300 Nm of torque while the B3 is on 265 Nm. B5 and B6 engines are on the Aisin gearboxes for MY23 and MY24 cars since those gearboxes can handle more torque.

It's also possible that with MY25 cars all of Volvo's vehicles will be switching to the 7DCT model since now the B5 is also switching to the Miller cycle while the B6 is being discontinued. The B5 is capable of delivering 350 Nm of torque which lines up perfectly with the 380 gearbox.
 
The 7DCT Volvo is using in their, at least European, XC40, S60 and V60 models is the Aurobay 7DCT EVO 380. Aurobay was previously a part of Volvo and since Volvo now wants to distance itself from pollutant technology they established their ICE department as a separate company a few years ago.


A bit off topic, my geek side got the better of me, regarding the technical details of the gearbox, I can only confirm that the 7DCT EVO 380 is being utilized in their B4 models that are working according to the Miller cycle principle. I don't know what transmission is inside the B3. It could also be the 380 or possibly the less powerful 300 model. The 380 is capable of a torque input of 380 Nm and a similar story is for the 300 model. It's also worth mentioning that the B4 engine is capable of pushing out 300 Nm of torque while the B3 is on 265 Nm. B5 and B6 engines are on the Aisin gearboxes for MY23 and MY24 cars since those gearboxes can handle more torque.

It's also possible that with MY25 cars all of Volvo's vehicles will be switching to the 7DCT model since now the B5 is also switching to the Miller cycle while the B6 is being discontinued. The B5 is capable of delivering 350 Nm of torque which lines up perfectly with the 380 gearbox.
In North America there is no such change.
 
I don't believe so, though we actually have to wait until Transport Canada tests them. The numbers don't come from Volvo here - we post according to what Transport Canada finds. On the same car year to year the ratings may be different even though the car isn't different. The difference is that the loops for test change year to year.
 
Discussion starter · #146 ·
I don't believe so, though we actually have to wait until Transport Canada tests them. The numbers don't come from Volvo here - we post according to what Transport Canada finds. On the same car year to year the ratings may be different even though the car isn't different. The difference is that the loops for test change year to year.
Gotcha. I was asking since Miller cycle ones are a bit more fuel efficient and pollute less.
 
The 7DCT Volvo is using in their, at least European, XC40, S60 and V60 models is the Aurobay 7DCT EVO 380. Aurobay was previously a part of Volvo and since Volvo now wants to distance itself from pollutant technology they established their ICE department as a separate company a few years ago.


A bit off topic, my geek side got the better of me, regarding the technical details of the gearbox, I can only confirm that the 7DCT EVO 380 is being utilized in their B4 models that are working according to the Miller cycle principle. I don't know what transmission is inside the B3. It could also be the 380 or possibly the less powerful 300 model. The 380 is capable of a torque input of 380 Nm and a similar story is for the 300 model. It's also worth mentioning that the B4 engine is capable of pushing out 300 Nm of torque while the B3 is on 265 Nm. B5 and B6 engines are on the Aisin gearboxes for MY23 and MY24 cars since those gearboxes can handle more torque.

It's also possible that with MY25 cars all of Volvo's vehicles will be switching to the 7DCT model since now the B5 is also switching to the Miller cycle while the B6 is being discontinued. The B5 is capable of delivering 350 Nm of torque which lines up perfectly with the 380 gearbox.
Posted elsewhere but two docs from Aurobay re the Miller cycle engines

Aurobay's 200hp 2.0l Miller engine – Aurobay

Aurobay_MP_Miller_White_Paper_52ec2ab000.pdf

B3and B4 with the LP engine since MY21 (B420T4 for the B3 with 163 bhp and B4 with 197 bhp - according to media.volvocars.com for MY23),. B5 for MY23 is 250 bhp and B420T2.

So yeah looks like MP Miller cycle engine likely for B5 next at 250 bhp.

B6 with the 300 bhp B420T... what's next for that as no 250 bhp Miller cycle (as HP model?) announced yet.

Also the Aurobay docs don't mention a 163 bhp engine but elsewhere it's mentioned (other posts here) that the B3 and B4 are Miller cycle....

I'd guess the B6 is replaced with a B4 engine (200 bhp) and ERAD 3 (~145bhp) as a new T6 PHEV, total 350 bhp.

Then T8 becomes B5 HP Miller (250 bhp) with 145 bhp ERAD 3 to deliver ~400 bhp.

That's if there isn't a 300 bhp Miller engine coming for a new non-PHEV T6 and as the T8 PHEV would be 300 bhp engine + 145 bhp motor = 450 bhp T8 as it is now.
 
Discussion starter · #149 ·
Curious to see what comes from Volvo re: hybrids when the SPA1 updates finally land. Expand PHEV offers? Dump MHEV garbage for FHEV?

"Electrified vehicles, whether fully electric models, plug-in hybrids or full hybrids, sold in the European Union accounted for 47.8% of all new passenger car registrations in April, up from 44.1% in the previous year."

A bit doubtful that MHEV's will disappear before PHEV's/FHEV's. They are significantly cheaper and there are still plenty of folks who can't or don't want to own a PHEV/FHEV or BEV. Volvo did discontinue the B6 in favor of the T6 PHEV but I think that that story will end there.
 
A bit doubtful that MHEV's will disappear before PHEV's/FHEV's. They are significantly cheaper and there are still plenty of folks who can't or don't want to own a PHEV/FHEV or BEV. Volvo did discontinue the B6 in favor of the T6 PHEV but I think that that story will end there.
In USA Toyota/Lexus can’t make enough FHEV, it’s a crazy space for Volvo not to be in. But agree broader offer of T6 PHEV is good development.
 
CEVT developed a HEV for the CMA platform, used on Lynk and Co and maybe some Geely models using the 7DCT transmission too - with integrated motor as well.

Volvo used this only on the XC40 T5 PHEV

With Volvo having already used (and been involved in the development of) these 7DCT transmission plus Volvo adopting it for B3 and B4 SPA platform cars in the EU as well (with the Miller cycle VEA engines but with the transmission lacking the integrated motor) it seems plausible to offer it on the SPA facelift cars as a route to HEV.
 

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Curious to see what comes from Volvo re: hybrids when the SPA1 updates finally land. Expand PHEV offers? Dump MHEV garbage for FHEV?

"Electrified vehicles, whether fully electric models, plug-in hybrids or full hybrids, sold in the European Union accounted for 47.8% of all new passenger car registrations in April, up from 44.1% in the previous year."

The main drawback of PHEV is that because it's double drivetrain, it's not something that will ever come down in price based on economies of scale. I'd even go as far to say that if someone is looking at PHEV from a cost-benefit perspective that they are very unlikely to choose it. It's more based on refinement, power, and a green statement. In our area, some people do it just so they can drive in HOV lanes believe it or not.

The MHEV does offer some fuel economy advantage without raising the cost much over non hybrid vehicles. And FHEV has its drawbacks too ... not so seamless to drive if you are more spirited. Works well in the city if you're driving lightly.
 
FHEV is still much more expensive than MHEV, with the motor and just a small battery. And it only moves the car a few yards from stop. A PHEV could be much cheaper if the 8AT is replaced with 3DHT like the LynkCo 08 and 07, and still keep the fun to drive. But Volvo probably will not use it, as it is still less linear power output (hense less luxury) than 8AT T8.

I think MHEV could use a slightly bigger batter and motor to be more efficient recycling braking energy, and also do stop/restart only with driver's consent (such as when auto-hold button is pressed), for smooth experience. The battery energy could be used for coasting.

China market now gets serious on battery swap. Many players now start cooperation with Nio on this. New Nio ONVO economic model received big number of pre-orders. This is the long lasting solution for EVs.
 
FHEV is still much more expensive than MHEV, with the motor and just a small battery. And it only moves the car a few yards from stop. A PHEV could be much cheaper if the 8AT is replaced with 3DHT like the LynkCo 08 and 07, and still keep the fun to drive. But Volvo probably will not use it, as it is still less linear power output (hense less luxury) than 8AT T8.

China market now gets serious on battery swap. Many players now start cooperation with Nio on this. New Nio ONVO economic model received big number of pre-orders. This is the long lasting solution for EVs.
From a refinement standpoint it's also not fitting of a luxury vehicle. It's gotten better over time but still has its limitations. If you drive lightly you don't notice anything but if you're a bit aggressive, you sure do.
 
I guess the platforms from now on will get more frequent evolutionary updates instead of being completely new from the ground up. So maybe SPA3 is more like SPA2.5 really?
With EVs this is likely because they are what is referred to as 'skateboard' platforms. So they may adapt to megacasting, solid state batteries, and whatever they come up with next. SPA and SPA-2 are not the same platform - the name evolves only.
 
You gotta love the name! 😂
Aurobay does seem well-hung for the future -

"there is strong demand among OEMs for a large standalone player with the capacity to provide next-generation hybrid powertrain solutions.”

I'm curious to see what powertrain packages are offered with updated SPA1 cars.
 
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