HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Page 1/2  >  >>
loadster
User Rank
Gold
RE: HIGH VOLTAGE EVs TO ACCOMMODATE MORE ELECTRICSL FEATURES
loadster   8/19/2013 12:28:48 PM
NO RATINGS
So much for IEEE laureates weighing in on this one. I remember the evolution of standard architectures in cars from the 60's thru the 90's. Whether to use small electric motors, vacuum controls from the intake manifold and hydraulics for select controls. This advancement of battery technology seems to have made the masters in the automotive industry abandon longevity and accept that this generation of conveyance have programmed obsolescence with no requirement for cross platform commonaility or standardization of modules. Guess we didn't learn from the landfills and part farms how wasteful that is. As consumers, we can all wiggle our collective noses as guinea pigs until the designers gravitate to a common architecture?

loadster
User Rank
Gold
RE: HIGH VOLTAGE EVs TO ACCOMMODATE MORE ELECTRICSL FEATURES
loadster   8/19/2013 12:28:48 PM
NO RATINGS
So much for IEEE laureates weighing in on this one. I remember the evolution of standard architectures in cars from the 60's thru the 90's. Whether to use small electric motors, vacuum controls from the intake manifold and hydraulics for select controls. This advancement of battery technology seems to have made the masters in the automotive industry abandon longevity and accept that this generation of conveyance have programmed obsolescence with no requirement for cross platform commonaility or standardization of modules. Guess we didn't learn from the landfills and part farms how wasteful that is. As consumers, we can all wiggle our collective noses as guinea pigs until the designers gravitate to a common architecture?

Charles Murray
User Rank
Blogger
RE: HIGH VOLTAGE EVs TO ACCOMMODATE MORE ELECTRICSL FEATURES
Charles Murray   8/12/2013 7:17:38 PM
NO RATINGS
Excellent point about households making use of the higher voltage architectures, AandY. A few years ago, we wrote about the use of these architures for campers and household users. See link below:

http://www.designnews.com/document.asp?doc_id=224902

AnandY
User Rank
Gold
Re- Lets evolve
AnandY   8/11/2013 4:13:20 AM
NO RATINGS
The make is quite fascinating; the electrical capability not only guarantees reliability but also longer range since the load is weighed off the engine. The high voltages and the ability to earnest energy while decelerating gives it a higher edge from the fuel powered ones. It is an interesting development.

AnandY
User Rank
Gold
RE: HIGH VOLTAGE EVs TO ACCOMMODATE MORE ELECTRICSL FEATURES
AnandY   8/11/2013 3:57:07 AM
NO RATINGS
There is no doubt that with the introduction of high-voltage electrical systems, the EVs will have the ability to have more electrical feature that will make it enjoyable by many of its users. This will go a long way in making it not only an alternative to conventional vehicle but the ideal near-must have for many households 

AnandY
User Rank
Gold
RE: 42 V
AnandY   8/8/2013 3:25:15 AM
NO RATINGS
I agree with Charles in that the new 48 V model offers open avenues for increased compatibility of devices to the system of the electrical vehicle. The manufacturers do not have to develop new devices to align to the system requirements, a fact that is common with most 42 V electrical vehicles.

Charles Murray
User Rank
Blogger
Re: 42V
Charles Murray   8/2/2013 7:06:37 PM
NO RATINGS
Good point, MVRS. One of the advantages of the proposed 48V systems is that they would keep a 12V network, so that suppliers wouldn't have to develop new compatible products (as they would have during the days of the proposed 42V systems). Let's hope we soon see that on our micro-hybrids.   

AREV
User Rank
Gold
Re: DC Bus Voltage
AREV   8/2/2013 2:53:50 PM
NO RATINGS
By isolate I mean that in cases of accidents the battery is totaly disconnected from everything so the power cannot escape to start a fire or electrocute someone. Same way an air bag inflatestoday the batteries should be totally separated from the vehicle on a detedted impact. Or they flare up like palnes are experiancing.

MVRS
User Rank
Iron
42V
MVRS   8/2/2013 2:34:39 PM
NO RATINGS
Remember the 42V push back about 15 years ago?  Replace the 12V battery with 42V and the wiring would be smaller (and thus lighter), there would be less voltage drop due to lower currents, and electric motors could be used for some things that were now belt driven on a n engine (power steering, AC, etc).  Some electronics started to be developed to support the higher bus voltage.  They ran into some issues with switches not lasting due to longer arcing when opening, too close of a margin to the 60V shock safety limit, off-state leakage current (increased), and incandescent bulb filiments durability.

Some of those problems are less of an issue now with switch mode converters and LED lighting.

MVRS
User Rank
Iron
Re: DC Bus Voltage
MVRS   8/2/2013 2:22:40 PM
NO RATINGS
Why do you say that the high voltage is not isolated from the rest of the vehicle?  I would imagine that it is.  These cars do not use 300+ volts to power the radio, headlights, etc.

Page 1/2  >  >>


Partner Zone
Latest Analysis
Factory floor engineers may soon be able to operate machinery and monitor equipment status simply by tapping their eyeglasses.
GE Aviation not only plans to use 3D printing to mass-produce metal parts for its LEAP jet engine, but it's also developing a separate technology for 3D-printing metal parts used in its other engines.
In this TED presentation, Wayne Cotter, a computer engineer turned standup comic, explains why engineers are natural comedians.
IBM's new SyNAPSE chip makes it possible for computers to both memorize and compute simultaneously.
The “Space Kid,” 11, will be one of the first civilians to have his design manufactured in space by NASA, thanks to the City X Project, which inspires kids to think about new 3D-printed inventions that could be useful for humans living in space.
More:Blogs|News
Design News Webinar Series
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 22 - 26, MCU Software Development – A Step-by-Step Guide (Using a Real Eval Board)
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


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: September 30 - October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service