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Future Toyota/Lexus Hybrids (Prius 2.0, Camry, Lexus 600h, etc.) - READ ONLY

35 messages,  Last post on Jan 23, 2008 at 12:59 PM

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What is this discussion about? Toyota, Lexus, Hybrid Cars, Sedan

Messages Page 5 of 5

#32 of 35 Re: - [dudleyr] by nvbanker

Nov 06, 2007 (10:50 am)

Replying to: dudleyr (Apr 21, 2007 8:27 am)
Interesting how nobody has tried that yet....a hybrid minivan. Ford did a great job on the Escape Hybrid - you can hardly tell the batteries are even in there, the spare is still underneath, and you still have a decent floor in the back too. I would think the Sienna could be made to work with the Hybrid.....maybe engine bay space is a problem?

#33 of 35 Re: - [nvbanker] by larsb

Nov 06, 2007 (11:20 am)

Replying to: nvbanker (Nov 06, 2007 10:50 am)
Toyota has the "Estima" hybrid minivan in Japan, and has had it for several years.
 
Click here for more info on the Estima
 
I cannot for the life of me understand their reticence to do it as a Sienna in the USA.
 
Confusing as heck !!!

#34 of 35 Re: - [larsb] by nwng

Jan 22, 2008 (3:52 pm)

Replying to: larsb (Nov 06, 2007 11:20 am)
If you stick the 2.4 hsd in sienna, you get your estima. minivans w/o v6 don't sell in the US, unfortunately. Looking at the link, it seems the hybrid will improve the mpg by about 25% over the 3.5l. I think they will bring it out if the next gen ody comes with a diesel option.

#35 of 35 What about.... by wwest

Jan 23, 2008 (12:59 pm)

A Sienna hybrid with the I4 but with a Miller Cycle using a positive displacement variable speed Supercharger. Use an E-CVT with a engine drive belt into one end and a permanent magnet AC synchronous motor at the opposite, ~3:1 reduction, end.
 
A variable frequency drive to the AC motor would allow complete, full range, engine throttling without a throttle butterfly valve. No boost would be provided unless extraordinary level of power were asked for.
 
Note that the 2.3L Twin-turbo engine in the Acura RDX produces 240HP. In comparison a hybrid Miller Cycle 2.3L I4 SC'ed as above (NO Turbo LAG) would only need to produce about 200HP w/full boost in order to match the performance of the RX400h.
 
A 40MPG Sienna....?

Messages Page 5 of 5

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