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Full hybrid versions of the ETK800 hatchback car
No problem, not at all. In fact, your powertrain works better than the eSBR, explanation here.
I see I'm not the only one who noticed that
I've even improved my system further in the unreleased new version...it should be much smoother. I map the throttle pedal to "requested torque", which is a percentage of the vehicle's total output torque. When it switches from electric to gas, it keeps track of that, and adjusts the engine and motors so that the amount of acceleration remains the same instead of bouncing around a bit like in the current released version.
I found another problem, The ETK856th does not have top speed limitation. If you put the 100kWh battery, it will eventually accelerate well above 300 km/h. The "maxMG2Power" and the "maxMG2AV" does not work even I changed to smaller numbers.
Fixed in the latest version It's awaiting moderator approval now; shouldn't be too long.
Arcanox updated ETK800 Hybrid with a new update entry:
More major improvements!
Read the rest of this update entry...
Hi, Did you remove the insane transmission? I enjoyed driving my etk800 at a speed of +400 km/h
I removed it by default because it never actually worked as I intended and I haven't tested it in a while, but the jbeam for it is still there. You could unpack the mod and uncomment the lines in the jbeam file.
Hm, I think the power is not the one that was before the update. And by the way, is it possible to add a speed limit switch in a future update?
Realistic =/= ludicrous, Before this update the electric motor can output full torque at 800km/h and the speed limit didn't work.
--- Post updated ---
I found a problem is that the ICE does not deliver full torque/power when floored according the torquecurve, even all MG1 MG2 and battery is still well below rated power.
It still doesnt work right. when the batteries are low the ICE gives very little power input to the drive train setup like what he said above
edit: didnt see above post
Judging by the power coming out of the battery, I'd assume that is due to the fact that the battery is unable to provide enough power to output any more torque. At 145 km/h, MG1 is spinning backwards and consuming power to allow the ICE to generate forward torque on the wheels, and MG2 is actually creating a bit of regenerative drag to help provide power for MG1. The battery can only provide 140 kW (which is a simulated limit, of course, but a realistic one). Your screenshot is actually slightly over that (a little bit over is fine, and can't really be avoided in some cases), so that's most likely what is happening.
If the battery is extremely empty, the engine is, of course, the sole source of power. The system also tries to reserve a little bit of engine power to charge the battery, as in real life, leaving a battery discharged too long will damage it. Because the engine can't apply torque on the wheels without some sort of electricity flow, if the battery is completely unable to provide any power, the engine won't be able to do much aside from charging the battery up a bit to the point where the two can work in harmony again.
Edit: This site is a great explanation as to how the Prius transmission works. I modeled the eCVT in BeamNG primarily after the information on this site, so it's definitely worth a read to help understand how the simulation works. The section titled "Cruising at Moderate Speeds" explains why MG1 spins backwards and can't exert maximum power at high speeds.
Why you cannot use full ICE power and reduced electric power to output the same torque? I mean full ICE power. If the throttle is 100%, the controller should use all power available in the ICE and only use electric power when battery can do it.
The answer is in the gearbox.
The problem within this drivetrain is that the ICE torque split ratio between S and R is inherently fixed. If full power is not needed, the MG2 will do regen to reduce torque to the wheel and vector some torque to the MG1(also do regen). If full power does needed, the MG1 have to output power(thus consume electric) to vector more torque to the output shaft. If the battery is not available, no force to slow the MG1, the MG1 will runaway and explode. To prevent this, the ICE is capped despite full throttle.
Conclusion. The Toyota Hybrid System/Hybrid Synergy Drive/e-CVT is Overhyped. The performance is not as good as expected despite using a very complex controller. I finally understand why so many Americans dislike the Prius.
I wouldn't say it's overhyped; I drove a Highlander Hybrid with this system for years and loved it. It was never power-starved. The issue with the Prius is that they put way too small of an engine and way-underpowered electric motors in it to achieve the best mileage at the expense of performance. Their larger vehicles are a lot better.
But when you get into a situation where the battery is completely empty in BeamNG (which is very hard to do in real life on a Prius, since you'd have to have a long empty stretch of road with no other cars), the "synergy" part goes away and you're left with just part of the engine power.
It's worth noting that the hybrid ETK856 (856th) has a slightly better zero-to-sixty time than the stock 856t, with the same engine. It also gets over three times the mileage
Well, I was using the ths model in my screenshot at #69, the battery is rated 480kW, not 140kW, so all the MG1(rated 125kW) MG2(rated 140kW) and battery(rated 480kW) is well below rated power, the ICE is still didn't full power.
Will there be a Power mode as such in a Prius where throttle response, especially from the electric motor(s), is instantaneous rather than gradual?
The faster you apply the throttle, the faster the motor power will increase, following an exponential curve. So if you floor it, the motors will instantly reach the maximum torque the can produce at a given speed.
is it possible to have the hybrid without that bloody cvt transmission ?
It's a planetary Hybrid, the CVT is the entire hybrid system. It works like this:
It's not a CVT like you're thinking. It's a fixed-ratio dual-motor transmission. Some hybrid manufacturers in real life have found ways to make a hybrid system with a typical automatic gearbox, but they're nowhere near as efficient as the eCVT design that most hybrid vehicles use.
Short answer: no.
the most efficency depends on your driving