HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
News
Electronics & Test

Custom Chemistry Could Bode Well for Start-Stop Batteries

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/2
William K.
User Rank
Platinum
Start-Stop, and the required batteries
William K.   6/6/2013 9:26:48 AM
NO RATINGS
Golf carts are a very poor example of any aspect of EV or HEV technology.

But much of the restart energy for a real start-stop drive system could come from a large capacitor, since with a warmed up fuel injected engine extended cranking would never be needed. One cylinder and one compression stroke and it should be running. A new battery technology may be quite worthwhile, but really, a capacitor should be able to deliver enough power for normal restarting. Of course the entire concept could easily be ruined by the wrong control algorithm, which I anticipate the first generation will be a miserable failure because the control algorithm will be totally wrong. The other requirements for maximum saving will be to allow driver control plus free-wheeling coasting. The downside is that it will require the vehicle to have non-powered steering, since the loss of power assist will render most drivers unable to steer the vehicle. But power steering for a small, light vehicle is really a waste of energy and an excess mechanical feature that only adds weight and complexity.

TJ McDermott
User Rank
Blogger
Maybe multiple solutions are needed?
TJ McDermott   6/5/2013 11:06:57 PM
NO RATINGS
If one is to solve the energy demand problems in this country, no one solution will work.  The Pacific NW has plenty of hydro electric potential, but is a rotten place for solar.  The southwest is exactly the opposite.  Tidal energy in Kansas is just plain silly.

A blended approach is necessary, multiple solutions.  Might using two different types of batteries make a better solution for vehicles?  This custom lithium chemistry for start-stop, and more conventional for regular operation?

Charles Murray
User Rank
Blogger
Re: Start-stop batteries
Charles Murray   6/5/2013 6:53:17 PM
NO RATINGS
Good point, Gorksi. Although, admittedly, golf carts don't have to start internal combustion engines.

Gorski
User Rank
Platinum
Start-stop batteries
Gorski   6/5/2013 1:58:06 PM
NO RATINGS
The chemistry is beyond me but it sounds good. Why did the battery consortiom fork over millions of dollars for this technology. They could have gotten it much cheaper by going out and playing a round of golf in a golf cart. Golf carts have been stopping and starting for years.

<<  <  Page 2/2
Partner Zone
Latest Analysis
Using a 3D printer, CNC router, and existing powertrain components, a team of engineers is building an electric car from scratch on the floor of the International Manufacturing Technology Show in Chicago this week.
Dick Bipes couldn't find a boat lift remote with the specs he wanted, so he created his own for automatic operation.
In November, a European space probe will try to land on the surface of a comet moving at about 84,000 mph and rotating with a period of 12.7 hours. Many factors make positioning the probe for the landing an engineering challenge.
NinjaFlex flexible 3D printing filament made from thermoplastic elastomers is available in a growing assortment of colors, most recently gold and silver. It's flexible and harder than you'd expect: around 85A (Shore A).
Hello, Moto. Join the iFixit team as it takes apart the world's first circular smartwatch, the Motorola Moto 360.
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