HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
REGISTER   |   LOGIN   |   HELP
Blogs
Electronic News & Comment

Can 48V Be the Auto Industry's Next Big Thing?

Page 1 / 2 Next >
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 6/6
ragtoplvr
User Rank
Gold
Re: Incremental is good
ragtoplvr   7/31/2013 9:00:57 AM
NO RATINGS
As I recall, there were 2 issues on the 42V

1.  Higher voltage FETS were too expensive

2  42V incadescent light bulb life in automotive environment was too short.

Both these are no longer issues.

 

Rod

apresher
User Rank
Blogger
42 Volts
apresher   7/30/2013 9:04:45 PM
NO RATINGS
Chuck,  I did an article on 42 volt systems 7-8 years ago, and the concerns were $ and safety. It looked at one point like 42v systems would be gaining a foothold, but within a year or two the tide had turned. Any idea if these factors (I'm sure $ is important) are still front and center? Thanks.

Charles Murray
User Rank
Blogger
Re: Miraculous EU Marketplace
Charles Murray   7/30/2013 6:54:58 PM
NO RATINGS
You nailed it, tekochip. That's the driver.

Charles Murray
User Rank
Blogger
Re: Miraculous EU Marketplace
Charles Murray   7/30/2013 6:54:20 PM
NO RATINGS
I detect a trace of irony in your question, but as I think you are pointing out here, they're not being coerced. There was no mandate. Start-stop came into being as a way of lowering emissions, and then European consumers just wanted it.

tekochip
User Rank
Platinum
Re: Miraculous EU Marketplace
tekochip   7/30/2013 1:55:13 PM
They pay more for fuel.

Reliabilityguru
User Rank
Gold
Miraculous EU Marketplace
Reliabilityguru   7/30/2013 10:53:20 AM
Extraordinary "in Europe, approximately 50 percent of the cars produced this year will be start-stop vehicles". That's about as universal as it gets in a free market. How are the EU consumers being coerced?

naperlou
User Rank
Blogger
Incremental is good
naperlou   7/30/2013 9:56:27 AM
NO RATINGS
Chuck, it seems that this would be an incremental increase (15%) that would be a lot less costly than a full hybrid or EV.  This is a good thing.  Couple that with increases in efficiency in the ICE and increased aerodynamics and you can easily reach the CAFE goals for a very reasonable price. 

I am also impressed that this system would run the A/C and other heavy loads on the engine.  The disturbing trend in autos today is increased power in the same displacement.  If instead of increasing power by 20%, the displacement was decreased by 20%, then fuel efficiency would go up almost for free (no new, exotic technology).  For example, the Chrysler 3.5L V6 that was first used in their LH cars produces 250HP.  As a comparison, my dad's 1970 Olds Delta 88 with a 5.7L (350 CuIn) V8 produced 250HP.  The newest 3.5L V6s produce about 300HP.  Now, if we just use a 3L at 250HP, then gas mileage would go up accordingly.  Believe me, 250HP is enough for a 3,600lb automobile to go fast.  If you take the load of the A/C and other items off the ICE, then you can lower the HP even more for the same performance. 

Why hasn't this happened?  Maybe the standards should be tighter, sooner.

<<  <  Page 6/6
Partner Zone
More Blogs from Electronic News & Comment
There's good news and bad news regarding the sub-systems of today's late-model vehicles. The good news is that new engines and transmissions are more trouble-free than in the past. The bad news is that the infotainment and DVD players are still prone to be "buggy."
Government fines and recalls are heightening the need for automakers to adopt more safety standards and software verification techniques, experts at EE Live said this week.
The coming era of self-driving cars will call for a major change in engineering culture, an embedded design expert said this week.
For decades, the corporate path to the chief executive's office has often passed through engineering. Automotive, computer, electronics, and oil companies have frequently drawn their leaders from the engineering ranks.
The Texas Motor Speedway has flipped the switch on a high-definition video board that uses 14 million LEDs, weighs more than 200,000 pounds, and is 80% larger than the Dallas Cowboys' world-renowned scoreboard.
Design News Webinar Series
3/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
2/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
12/18/2013 Available On Demand
11/20/2013 Available On Demand
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Apr 21 - 25, Creating & Testing Your First RTOS Application Using MQX
SEMESTERS: 1  |  2  |  3  |  4  |  5


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: April 29 - Day 1
Sponsored by maxon precision motors
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service