Go Back   Team-BHP > BHP Worldwide > The International Automotive Scene


Reply
 
Thread Tools Search this Thread
Old 19th November 2005, 12:43   #1
Senior - BHPian
 
ac 427's Avatar
 
Join Date: Oct 2005
Location: Mumbai
Posts: 1,332
Thanked: 113 Times
Default most radical development in international machines in last 5 years

acc to me the most radical developments in the last 5 years in the internation vehicl senario is the development of the 'wankle engine' currently being used in Mazda rx - 7. and also the development of the hybrid engine.
ac 427 is offline   Reply With Quote
Old 19th November 2005, 13:56   #2
Senior - BHPian
 
islero's Avatar
 
Join Date: Dec 2004
Location: Chennai
Posts: 1,574
Thanked: 4 Times
Default

You mean Mazda Rx8, right?

I thought wankel has been in use since early sixties?
islero is offline   Reply With Quote
Old 19th November 2005, 14:12   #3
Senior - BHPian
 
ac 427's Avatar
 
Join Date: Oct 2005
Location: Mumbai
Posts: 1,332
Thanked: 113 Times
Default

yups ma mistake its d rx 8, it might have been used in 60s but i don think it was used in a production vehile. any more ino on the perfomance of the wankle, ive heard its realy smooth.
Quote:
Originally Posted by islero
You mean Mazda Rx8, right?

I thought wankel has been in use since early sixties?
ac 427 is offline   Reply With Quote
Old 19th November 2005, 14:20   #4
Senior - BHPian
 
Join Date: Mar 2005
Location: N.A
Posts: 6,834
Thanked: 1,503 Times
Default

Quote:
Originally Posted by ac 427
yups ma mistake its d rx 8, it might have been used in 60s but i don think it was used in a production vehile. any more ino on the perfomance of the wankle, ive heard its realy smooth.

Mazda have used Wankels in many of their models, so the technology has been used on production vehicles.

PS: Someone here gave me this link quite sometime back. Good reading for the subject under discussion:

http://www.rotaryengineillustrated.com/

Last edited by Steeroid : 19th November 2005 at 14:34.
Steeroid is offline   Reply With Quote
Old 19th November 2005, 14:44   #5
Team-BHP Support
 
Join Date: Feb 2004
Location: Bangalore
Posts: 11,882
Thanked: 9,696 Times
Default

The more radical developments have been in safety. ABS/ Airbags are the main ones

Engines - wankel promises a lot in terms of pwer/size but fuel consumption and oil consumption are much to be desired still. The NSU RO80 was onehell of a car in 1968 and it stil is a very good looking car but warrany issues with rotor seals killed it off.

Hybrids is the biggest single dvelopment. What to watch out for are the Fuel Cell / hydrogen powered cars
ajmat is offline   Reply With Quote
Old 19th November 2005, 15:12   #6
Senior - BHPian
 
Shan2nu's Avatar
 
Join Date: Feb 2004
Location: Hubli - Karnata
Posts: 5,525
Thanked: 87 Times
Default

I would probably have to go with VCM (Variable Cylinder Management). It's more or less like a hybrid except that instead of an electric motor the main petrol engine itself is divided into 2.

For example in the Honda Inspire V6, in the cruise mode, 3 of it's cylinders stop functioning............ making it a fuel efficient 1.5 ltr engine. Then when you slam the throttle, all six fire up to unleash it's full potential.

I think even the Cadillac 16 uses this technology. Makes a lot of sense on a car with 13000 cc.

They should seriously think about this for the Indian market.

Shan2nu

Last edited by Shan2nu : 19th November 2005 at 15:15.
Shan2nu is offline   Reply With Quote
Old 19th November 2005, 15:17   #7
Senior - BHPian
 
Join Date: Mar 2005
Location: N.A
Posts: 6,834
Thanked: 1,503 Times
Default

Quote:
Originally Posted by Shan2nu

They should seriously think about this for the Indian market.

Shan2nu
Shan

I thought the Accord V6 uses this technology? In that case dont we have it in India already>
Steeroid is offline   Reply With Quote
Old 19th November 2005, 16:28   #8
Senior - BHPian
 
Shan2nu's Avatar
 
Join Date: Feb 2004
Location: Hubli - Karnata
Posts: 5,525
Thanked: 87 Times
Default

Quote:
I thought the Accord V6 uses this technology? In that case dont we have it in India already>
Nope, the Indian V6 doesn't have VCM. It's the Jap version of our Accord, renamed "Inspire" which uses this.

The easiest way to differentiate between the Accord and the Inspire is by looking at the hood. While our Accord comes with a smooth design, the Inspire has a V shaped design embosed on it.

Accord


Inspire


Shan2nu
Shan2nu is offline   Reply With Quote
Old 19th November 2005, 16:37   #9
Senior - BHPian
 
ac 427's Avatar
 
Join Date: Oct 2005
Location: Mumbai
Posts: 1,332
Thanked: 113 Times
Default

also i think, the materials being used . .. have been developed well in the last 5 years . . more of carbon firbre, and lots of aluminium being used . . . makin vehicles more lighter n more environmental friendly. the delorean was a big leap, though it was not in the last 5 years but its worth a mention when we are talking about leaps in automobile developments.
ac 427 is offline   Reply With Quote
Old 19th November 2005, 17:33   #10
Senior - BHPian
 
aniguchisan's Avatar
 
Join Date: Nov 2005
Location: London, UK
Posts: 2,022
Thanked: 111 Times
Default

VCM, Hybrid engines, RSI, Xenons.
aniguchisan is offline   Reply With Quote
Old 19th November 2005, 19:56   #11
Senior - BHPian
 
islero's Avatar
 
Join Date: Dec 2004
Location: Chennai
Posts: 1,574
Thanked: 4 Times
Default

You are forgetting paddle shifting, four-wheel steer( used to good effect in the 2nd gen Honda Prelude), and Merc's radar-guided cruise control.
islero is offline   Reply With Quote
Old 19th November 2005, 20:34   #12
Senior - BHPian
 
ananthkamath's Avatar
 
Join Date: Jul 2005
Location: USA
Posts: 1,194
Thanked: 46 Times
Default

Quote:
Originally Posted by ac 427
the delorean was a big leap, though it was not in the last 5 years but its worth a mention when we are talking about leaps in automobile developments.
Can you explain why it was a big leap?
ananthkamath is offline   Reply With Quote
Old 19th November 2005, 21:44   #13
Senior - BHPian
 
ac 427's Avatar
 
Join Date: Oct 2005
Location: Mumbai
Posts: 1,332
Thanked: 113 Times
Default

Quote:
Originally Posted by ananthkamath
Can you explain why it was a big leap?
because
a) firstly its designed by John Z. DeLorean, one of the most respected designers, also he was charged with trafficing of drugs to build this vehicle. that not being the important point
b) body used was glass-reinforced plastic with high-quality grade-304 brushed stainless steel skin, which was like ROCKET SCIENCE in 1981. The paint was a special paint which can't chip or fade, and it's impervious to rust.
and also the fact that there were 2 PURE GOLD deloreans built, makes it SPECIAL

Also chassis wise, the materials used in production were way ahead of its time.

Last edited by ac 427 : 19th November 2005 at 21:46.
ac 427 is offline   Reply With Quote
Old 19th November 2005, 22:01   #14
Team-BHP Support
 
Join Date: Feb 2004
Location: Bangalore
Posts: 11,882
Thanked: 9,696 Times
Default

Quote:
Originally Posted by ac 427
because
a) firstly its designed by John Z. DeLorean, one of the most respected designers, also he was charged with trafficing of drugs to build this vehicle. that not being the important point
b) body used was glass-reinforced plastic with high-quality grade-304 brushed stainless steel skin, which was like ROCKET SCIENCE in 1981. The paint was a special paint which can't chip or fade, and it's impervious to rust.
and also the fact that there were 2 PURE GOLD deloreans built, makes it SPECIAL

Also chassis wise, the materials used in production were way ahead of its time.
I beg to defer

1: He never designed any cars - only marketed well - only credit was the Pontiac GTO

2: Agreed but the car was never painted - the brushed steel was the finish - only coated

3: Chassis was a disaster - rear engined - never hadled well so Lotus were brought in (in a Saddam style deal) to sort it out
ajmat is offline   Reply With Quote
Old 19th November 2005, 22:29   #15
Senior - BHPian
 
sajo's Avatar
 
Join Date: Apr 2005
Location: Pune
Posts: 2,554
Thanked: 815 Times
Default

I think even Chrysler uses their Multidisplacement thing on their pushrod Hemi engines. But in those big V8s the fuel efficiency is said to be increased by only 10-15 %.
sajo 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
The Most Drop-Dead Gorgeous Machines Ever Thread Scorcher Shifting gears 55 12th November 2011 16:19
Radical new design for London bus kalpeshc The International Automotive Scene 2 9th December 2008 13:15
Radical SR8 ananthkamath The International Automotive Scene 15 29th October 2005 15:29


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

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