ssun30

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Daihatsu finally debut their own hybrid system, it's a series hybrid like Nissan's e-Power, but you'll probably never it in markets outside of Japan and certain parts of Southeast Asia as it is intended to be used in very budget oriented vehicles.
Yes, serial hybrid is the best system at very low outputs (<100kW) and low speeds. Simple and cheap, makes sense for developing nations with most low speed driving.
 

spwolf

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Daihatsu finally debut their own hybrid system, it's a series hybrid like Nissan's e-Power, but you'll probably never it in markets outside of Japan and certain parts of Southeast Asia as it is intended to be used in very budget oriented vehicles.

is this the small hybrid system left on Toyotas engines list? Quite interesting.
 

Sulu

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Yes, serial hybrid is the best system at very low outputs (<100kW) and low speeds. Simple and cheap, makes sense for developing nations with most low speed driving.
Serial hybrid can also be the "best" system for range extenders. As EVs become ubiquitous, yet we still have range anxiety -- due to lack of EV recharging infrastructure outside of, and between, urban centres (like we have here in Ontario, Canada) -- the most obvious method to reduce this anxiety is to provide only enough EV range for daily urban driving and commuting, and include a small engine just to keep the battery charged during longer trips.
 

carguy420

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I remember reading something about the GR Corolla was already in development before even the GR Yaris project had begun, or did I remember it incorrectly?
 

ssun30

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Serial hybrid can also be the "best" system for range extenders. As EVs become ubiquitous, yet we still have range anxiety -- due to lack of EV recharging infrastructure outside of, and between, urban centres (like we have here in Ontario, Canada) -- the most obvious method to reduce this anxiety is to provide only enough EV range for daily urban driving and commuting, and include a small engine just to keep the battery charged during longer trips.
EREVs fell out of favor in recent years with manufacturers staying with PHVs.

The reason is in EREV 100% of the power go through the electric path way, which is less efficient than mechanical direct drive at highway speeds. Another side effect is all electric components need to be larger so cost is higher.
I remember reading something about the GR Corolla was already in development before even the GR Yaris project had begun, or did I remember it incorrectly?
I don't think so. The chief engineer of GR Yaris said "it would be a waste to not use this powertrain on other products". This suggests the powertrain was initially developed for the GR Yaris project.
 

Sulu

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EREVs fell out of favor in recent years with manufacturers staying with PHVs.

The reason is in EREV 100% of the power go through the electric path way, which is less efficient than mechanical direct drive at highway speeds. Another side effect is all electric components need to be larger so cost is higher.
You have just condemned all EVs.

EVs will obviously run with the electric pathway at all speeds. Range-extended EVs, with small engines only to recharge the battery to reduce range anxiety is not exactly same as plug-in hybrids vehicles.

Automakers building PHVs right now are gaming the system; they are selling high power and quick acceleration, all while claiming that they are efficient and green because of the parallel electric powertrain. The ICE remains the primary drivetrain with the electric drivetrain as a supplement.

An EV with a small serial-hybrid range extender is different. The range extender is there in case you run out of electric charge between charging stations. The range extender is the secondary, supplementary drivetrain to the primary electric drivetrain.
 

Will1991

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I believe you’re talking about two different solutions…

While ssun30 should be talking about something similar to the Nissan ePower where you only fill up with fuel, sulu is talking about something similar to the i3 REx, where you can fill up with fuel or electricity.
 

ssun30

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EREV is a quite awkward way of solving range anxiety. It's not cost competitive for a passenger car because of unfavorable component sizing compared to PHV and BEV. You are spending a lot of money on components that are dead weight in 95% of driving and only helpful on a few road trips each year.

On the other hand, it's quite useful for commercial vehicle where cost of operations is much higher than cost of purchase. A zero emissions bus/truck could use battery in city driving and a hydrogen fuel cell extender for highway driving or quick regeneration. It's quite attractive since the bus/truck needs no charging/refueling stop to run a full day shift. The bus line requires fewer buses and the truck driver can cover more distance per day.
 

qtb007

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EREV is a quite awkward way of solving range anxiety. It's not cost competitive for a passenger car because of unfavorable component sizing compared to PHV and BEV. You are spending a lot of money on components that are dead weight in 95% of driving and only helpful on a few road trips each year.

On the other hand, it's quite useful for commercial vehicle where cost of operations is much higher than cost of purchase. A zero emissions bus/truck could use battery in city driving and a hydrogen fuel cell extender for highway driving or quick regeneration. It's quite attractive since the bus/truck needs no charging/refueling stop to run a full day shift. The bus line requires fewer buses and the truck driver can cover more distance per day.
A 300mi range BEV has a lot of money and weight tied up in battery capacity that is dead weight in 95% of driving and only helpful on a few road trips each year. Big batteries and PHEV both waste a lot of weight and money solving range anxiety. When we can get 150mi range @ 75mph topped up in 10 minutes time on a charger, battery packs will get smaller because that reduces cost (with bonus of reducing weight and increasing volume).
 

Will1991

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@qtb007 , I agree with you that for the future and with better charging infrastructure we won’t need enormous batteries, but it’s also important to note that it’s harder to make a smaller battery charge faster without compromise longevity.
There’s always a trade off.
 

ssun30

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From Bestcar, 5th gen HSD (current products are 4th gen) will debut on the new Noah minivan next January. Same 2ZR-FXE but overall output increases from 90kW (122PS) to 101kW (137PS). Fuel economy improves by 19% (19.8km/L->23.6km/L WLTC).

@qtb007 , I agree with you that for the future and with better charging infrastructure we won’t need enormous batteries, but it’s also important to note that it’s harder to make a smaller battery charge faster without compromise longevity.
There’s always a trade off.
That's right. Bigger batteries go through fewer charging cycles in their lifetime so they have better longevity. It is still a big waste of resources and actually a valid argument against BEVs. Well to be fair we can keep going on and say this is an argument against cars in general, because most people in the world move less than 30km a day so they don't really need a car to begin with.
 

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Benito

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^translate would be nice.
Spring 22-23 Crown launch
The crown once reigned at the top of the Japanese car world. This car, which was a symbol of wealth, has also been 65 years since its first appearance, and when the model cycle counted to its 15s, it has become rumored that it will be in danger of survival (it looks like the Edo bakufu ...).

Although the next type of information of Crown is extremely complicated, when our editorial department interviewed Toyota officials, "The survival of the model is unwavering. However, the image has changed a lot and it will be a 4-door coupe." Shocking information came in.

That crown... Below, I would like to organize and deliver the information I have at the moment. At the moment, the expected time for the next crown to appear is about a year and a half to two years later.

Text / Best Car Web Editorial Department
Photo: Best Car Editorial Department, Toyota

Will the next model be reborn as a four-door coupe?​

The current crown was rejuvenated with a coupe-like design, but it is also true that there was a great spell due to its history and tradition. Therefore, in the next model, the latest information that the editorial department is currently reborn as a stylish 4-door coupe that not only strengthens the sports route but also breaks the existing crown statue.

The new design of the front mask symbolizes the breakthrough. A sporty mask that foreshadows a low center of gravity with a large horizontal grille in a thin LED light similar to EV's "bZ4X". The roof line that creates a coupe feeling is more stretchy, and by miniaturizing the trunk lid, it can be finished in a fastback coupe-like form. The rear tail is also compact and sharp, making it look like a sports car.
A major reform beyond design is the first FF in the series.

We will move to the GA-K platform that combines the good running performance and the size of the cabin to reduce costs. The current crown also uses the same large FR GA-L platform as Lexus LS, but in fact it is a special specification for crowns with a width of 1800 mm. This alone is expensive, and the width constraints of the car also lead to design constraints. Therefore, in order to reduce the sharing and full width of the platform, the next type of FF seems to have become an indispensable item for development.

■The next crown of the major reform is expected from the winter of 2022 to the spring of 2023.​

The power unit is integrated into a 2.5L inline four-cylinder engine, but not only hybrid but also powerful turbo is set. Of course, 4WD will continue, and hybrid cars will be E-Four. Turbo cars are likely to be a fun 4WD model with a FR-like taste by incorporating dynamic torque vectoring AWD. Unfortunately, V6 with a high rotating feel will disappear in the current model.

There is no information about the interior, but it will be advanced and sporty, but it will be a high-quality finish suitable for the Toyota flagship. And the advanced driving support function "Toyota Teammates", which has been introduced to some models, will also be adopted for the first time.

The expected appearance time is from the winter of 2022 to the spring of 2023. The rising star crown of the great reform will bring us great excitement with shock.
Finally, what was the "Crown SUV Plan" that was rumored for a while?

In conclusion, there is a plan to develop an SUV based on a crown, so-called "crown cross". The hidden ball of the next crown, which aims to expand the user base due to rejuvenation, is on sale of SUV specifications. In China, an SUV named "Crown Kruger" appeared, but it is said that a different brand new coupe SUV will be sent out.

Based on the next 4-door coupe design, an SUV-like protection cover is attached to the wheel arch and the bottom of the body to lift it up. The engine is the same as the coupe, but there is a high possibility that it will be a 4WD dedicated car. It looks like it's going to be the most sporty SUV in Toyota.
 

Levi

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ES 500h is definitely coming, and quite soon. That is why ES got such a mild facelift, and next gen might come sooner than the usual life cycle. Still wondering about next IS and RWD/GA-L platform. What is the LS going to be? Even LS 750h will not be enough given it will weigh almost the same as LX 750h.

ES 500h will "kill" LS 750h sales the same way it "did" to GS. Acceleration will be almost the same till 100 km/h, ES will be lighter, as spacious, and much cheaper. And if they upgrade interior quality/materials/luxury, LS will have little to add for that much money.
 
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Sulu

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ES 500h is definitely coming, and quite soon. That is why ES got such a mild facelift, and next gen might come sooner than the usual life cycle. Still wondering about next IS and RWD/GA-L platform. What is the LS going to be? Even LS 750h will not be enough given it will weigh almost the same as LX 750h.

ES 500h will "kill" LS 750h sales the same way it "did" to GS. Acceleration will be almost the same till 100 km/h, ES will be lighter, as spacious, and much cheaper. And if they upgrade interior quality/materials/luxury, LS will have little to add for that much money.
Details please! Does the ES 500h come with a more powerful ICE -- larger, V6, turbocharged -- or more powerful electric powertrain -- plug-in hybrid?
 

Levi

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Details please! Does the ES 500h come with a more powerful ICE -- larger, V6, turbocharged -- or more powerful electric powertrain -- plug-in hybrid?
Sorry for wrong use of "definitely". I have no insider knowledge. I am just saying what should happen based on info we already have. ES would get the same setup as RX 500h, no V6, but turbo I4 hybrid without plug.

You remember the teaser with Direct4 E-Axle? Those cars "were" TX and ES 500h.
 

Levi

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I found this here, hope it is not a repost, and hopefully it comes to fruition, because BMW S58 tuning potential does make envious.

Ovtune said:
The all new Toyota / Lexus 3.5L V35A-FTS engine.
A marvel from Toyota. There are actually turbochargers in there!
This new v6 comes out of the gates with 416 horsepower and 442 ft lbs. Impressive. But is that all it can do?
The V35A Engine is one of the most electronically controlled engine we've ever seen. Electronic Coolant temperature control, Electronic Oil control, Electronic valve control. Electronic boost control.
Electronic everything.
Quad intelligent valve timing. High compression, Twin turbochargers, liquid temperature controlled intercoolers. This engine SCREAMS 650 horsepower.
But where is it?
Locked away in one of the most complex engine management calibrations we've ever seen, ever.
No worries though, we have already been dissecting the binary from the ECU since October 2018, and we're inching closer to releasing the worlds first V35A ECU tune.
Here is what we know.
- The Engine Management uses one of the newest Chipset's available, under the highest technology available by Renesas.
- The Chipset floating point precision is simply unbelievable in terms of processing power when it comes to this calibration
- The engine calibration uses the LARGEST (byte size) and (table size) we have ever seen in a modern day ECU. We know that you can find rather large ignition and fuel maps on motorcycles for example (where the dimensions of a table might be as big as 32x32). Yeah, well...That's a baby compared to some of the tables in this ECU.
- It uses a new and revised version of Toyota's complex 4th Dimensional (literally) table structuring, torque model and throttle control calibration logic.
- The Calibration is modeled not for maximum possible power, but smoothest and quickest possible response.
- The Calibration is throttle limiting. What does that mean? Ask the Lexus IS200T. That means there is tons more torque just a throttle angle difference away.
Useful information:
Toyota's newest tech is proving itself once again. These new ECUs are finally on par with what other modern day manufactures have been doing. Although, there are some manufactures that have used floating point precision since 2003, Toyota now uses it to a bigger scale than ANY manufacture has EVER done, EVER!
- The new ECUs Chipset was only recently released by Renesas, it's not some ancient tech like you see in the Toyota's out of the 2000s (all the way to 2017 If you're a Tundra).
But who cares about that stuff? Lets see some of the tables, in depth.
- The basics. Fuel stuff. Not too different from Toyotas Standard protocol for fuel. (Although there are many other components, like Wide Open Thresholds, 2D Fuel targets, Stoic Target, etc).
fuel_1b4c17b7-7d7c-4f51-ab90-69f70c9623da_1024x1024.png

Boost Targets Controlled by Various sensors. (Temperature control)
boost_1024x1024.png

And the Grand Finale (Not really) Table Ala. Gargantua.
This (and many more like it) are MASSIVE Floating Point Precision tables. This one table is big enough to fit an ENTIRE early 90s calibration inside. Overcompensating much?
We're actually happy to see this. This means Toyota takes their calibrations very seriously, and they simply don't mind going outside of the norm to ensure the most accurately calibrated table possible. Unlike some manufacturers that may stick to certain table sizes (like 16x16) or Ford..whose ignition tables are laughably small compared to calibrations of this day and age (Although to Fords credit the individual table is small, the actual ignition strategy is NASA level complex).
boost_e2c766b3-1724-4326-b3b4-4d4f8f7fd078_2048x2048.png

What does this mean for the future? We're working with our Distributor in Asia and will have some dyno testing done soon. Lets see what the engine that should of been in the new Supra can do!​
Source: https://vftuner.com/blogs/news/toyota-lexus-v35a-fts-twin-turbo-engine-can-it-be-tuned-yes (feb 28, 2019)

Latest post on this thread: https://forum.vftuner.com/forum/toy...-lx600-ls500/7638-2022-3-5l-twin-turbo-tundra