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Old 05-11-2020, 06:22 PM   #51 (permalink)
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Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
No surprise Toyota went so conservative before switching from more traditional automatics to the CVT in many of its models even though in hybrids the so-called e-CVT had been successful even though it's not a real CVT, and IIRC it still doesn't resort to a CVT on 4WD versions of its CUVs. Well, maybe a high failure rate of CVTs would be a good excuse for Nissan to do a switch to hybrids, considering the ability to emulate the operation of a CVT in a hybrid setup similar to the HSD.
Nissan has a hybrid out in Japan which is basically a Leaf electric motor and a small "generator" gasoline engine to provide the electricity. Their city fuel economy is supposed to be pretty good.

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Old 05-11-2020, 06:33 PM   #52 (permalink)
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Nissan has a hybrid out in Japan which is basically a Leaf electric motor and a small "generator" gasoline engine to provide the electricity. Their city fuel economy is supposed to be pretty good.
I'm aware of this. But anyway, I'd still prefer some layout that also allows the ICE to directly drive the wheels under certain conditions.
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Old 05-11-2020, 06:41 PM   #53 (permalink)
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Originally Posted by Ecky View Post
Nissan has a hybrid out in Japan which is basically a Leaf electric motor and a small "generator" gasoline engine to provide the electricity. Their city fuel economy is supposed to be pretty good.
That's an interesting idea. Using the gasoline engine to power a generator and running the generator only when the batteries are low may eliminate pumping losses and transmission losses, but introduces more efficiency losses in the generator, charger, inverter (if it has an AC motor), and electric motor. Not sure how much benefit there is.

Honda actually made an Accord hybrid that had no transmission, the engine ran a generator at low speeds and it powered the wheels with a simple differential with a 1:1 drive ratio when driving at higher speeds.
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Old 05-11-2020, 06:47 PM   #54 (permalink)
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Honda actually made an Accord hybrid that had no transmission, the engine ran a generator at low speeds and it powered the wheels with a simple differential with a 1:1 drive ratio when driving at higher speeds.
Seems like a glorified version of the transmission layout of the Mobylette
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Old 05-11-2020, 07:02 PM   #55 (permalink)
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I imagine Nissan probably cheaped out and left out the 1:1 gear so they could use a lot of parts-bin stuff.
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Old 05-12-2020, 04:57 PM   #56 (permalink)
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I imagine Nissan probably cheaped out and left out the 1:1 gear so they could use a lot of parts-bin stuff.
Seems in line with Nissan's strategy of a single-powertrain for its EVs.

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