Go Back   Team-BHP > Under the Hood > Technical Stuff


Reply
 
Thread Tools Search this Thread
Old 19th May 2010, 22:46   #16
Distinguished - BHPian
 
Join Date: Jul 2009
Location: Kolkata
Posts: 3,506
Thanked: 2,072 Times
Default

Quote:
Originally Posted by veyron1 View Post
A) Ok. My bad. I was thinking of this particular concept wherein an AC induction motor, or your asynchronous/squirrel cage motor was converted to a DC motor for automotive applications...but that's not quite relevant here, sorry...
B) I would think so...but then again, production gasoline engines are less than that with BSFC of 0.4-0.6 lbs/hp/hr..close to what, 20-25%...? I would think there's a lot more to alternative power...TESLA, (motors, not Nikolas) is quite promising, don't you think...?
C) Perhaps upscaling was the wrong word...with around 50% thermal efficiency, 2 strokes need to make a desperate comeback...more so with mass production diesels.
D) Ah. Sorry. Forgot about that...automatics have always been a pain in the neck to decipher. As if conventional gearboxes weren't complex enough..however, slushboxes are quite inefficient despite the advantage with torque converters...maybe there should be a stickshift with a torque converter..nono, not the computer controlled man-o-matics with paddle shifts, but an H-gater with pure manual control...
E) The type C torsens with planetary gears (being currently used by Audi/VW, I think, for the non-haldex units) need them for uneven bias...1.5 or 1.75:1 or whatever...depending on design..but then again, I'm still a bit unsure as to the significance of the gear design.
b) Efficiency >80% (at full load)
c) Makes sense in a hybrid. Not really viable in small sizes.
d) Inefficiency actually comes from the torque converter. And the necessity of generating hydraulic pressure.
e) the "torque sensing" part does not use planetaries.

Regards
Sutripta
Sutripta is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mercedes Benz 300D (W123 series): Manual Transmission to Automatic Transmission. wartikars Post-War 5 3rd January 2014 12:39
Tata Motors Showcases its New Range of Tactical and Armoured Vehicles autocrazy Commercial Vehicles 22 4th October 2013 09:29
GM showcases the Chevrolet Beat Battery Electric Vehicle Mr.Beat The Indian Car Scene 12 4th August 2011 17:19
Toyota showcases its Hybrid X concept at Geneva navdeep The International Automotive Scene 5 12th March 2007 11:32


All times are GMT +5.5. The time now is 19:51.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks