HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  RESOURCE CENTER  |  INDUSTRIES
REGISTER   |   LOGIN   |   HELP
<<  <  Page 3/3
bdcst
User Rank
Platinum
School bus range anxiety not completely solved
bdcst   2/8/2012 3:11:34 PM
NO RATINGS
I still see a problem with range anxiety for school buses.

Looking at rural America, what if the fleet of electric school buses plugged into their overnight charging stanchions either at school or more likely in the dooryards of the bus drivers have no commercial power due to an overnight storm?  Weather is fine the next morning but school might have to be cancelled since most children may be without reliable bus service.

And what about communities whose nuclear power plant evacuation plans include moving children out of the danger zone via school buses whose mid-day charge might prove insufficient for the unexpected route change and interrupted charging supply?

 

naperlou
User Rank
Blogger
Re: Predetermined routes a strong suit
naperlou   2/8/2012 12:36:29 PM
NO RATINGS
Ah, Beth, you have revealed the flaw in the plan.  Let's hope we are proved wrong sometime.

Beth Stackpole
User Rank
Blogger
Re: Predetermined routes a strong suit
Beth Stackpole   2/8/2012 11:10:00 AM
NO RATINGS
I totally agree with your logic naperlou, but still skeptical that the government has its act together enough to make a solid TCO case for this kind of expenditure. I would love to be proven wrong.

naperlou
User Rank
Blogger
Re: Predetermined routes a strong suit
naperlou   2/8/2012 10:20:09 AM
NO RATINGS
Beth, actually the issue is the Total Cost of Ownership (TCO) of a system like this.  For new technologies like electric and natural gas driven vehicles (I know these aren't really new, just coming back) this type of application is perfect.  I have long advocated that these technologies be mandated for government entities, where appropriate, as a first step.  But, the TCO first.  Electric vehicles do not need the maintenance that conventional vehicles do.  They also do not use diesel fuel, which fluctuates wildly in cost.  So, while the article did not give us enough information to make a final determination, there is a good chance that this could be the case.  School districts often purchase captial equipment through bond issues, therefore spreading out the cost, so that might not be as big a deal either.

As for the use of these technologies by government agencies, I think that is a great way for the government toevaluate and prove new technologies without mandating them for the private economy.  Often local governments have their own refueling infrastructure and their vehicles operate in a limited geography.  Thus, if the technology is useful, this helps build an industrial base for it and gives valuable information to potential future users.  If it really works, then the private economy will adopt it. 

apresher
User Rank
Blogger
Focus on Efficiency
apresher   2/8/2012 8:12:24 AM
NO RATINGS
Very interesting concept, Chuck, and I think it demonstrates the kind of engineering thinking and focus on efficiency solutions that we need more of. It will be interesting to see how much the cost premium is versus diesel-based buses.

Beth Stackpole
User Rank
Blogger
Predetermined routes a strong suit
Beth Stackpole   2/8/2012 6:35:51 AM
NO RATINGS
Wow, what a great idea for applying EV technology. The fact that school bus routes (and even inner city bus routes) have specific routines with little opportunity for variation do make them strong candidates for EV transportation. Problem is what the problem always is: Cost. School systems don't have the budgets to fund these type of vehicles and while many schools sub out bus transportation to private providers, the question is whether they could sustain any additional cost associated with not only the new vehicles, but the infrastructure that would have to go in place to handle the nightly charging.

Nice potential, though!

<<  <  Page 3/3


Partner Zone
Latest Analysis
A team of Colorado State University students has created a gadget that guides a remote control airplane through the sensors in a glove.
The Tesla Model S' performance in Consumer Reports tests was a major victory for electric cars, but a bigger challenge still lies ahead.
By refining topologies and using new fluid technology, Moog's new peak sine drive controller increases available power without increasing controller volume.
Lantronix Inc. has expanded its line of controllers for sensor networks with the release of a rugged controller that improves management of automation systems used in a number of industries, including manufacturing, oil and gas, and chemicals.
Inspired by the hooks a parasitic worm uses to penetrate its host's intestines, the Karp Lab has invented a flexible adhesive patch covered with microneedles that adheres well to wet, soft tissues, but doesn't cause damage when removed.
More:Blogs|News
Design News Webinar Series
5/15/2013 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
5/1/2013 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
5/22/2013 9:00 a.m. California / 12:00 p.m. New York / 5:00 p.m. London
5/29/2013 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
Blogs from Our Sponsors
From Dell / Intel®
New Paradigms in Design Work
Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013    3
Early in my career, I worked as a draftsman and remember the days of drawing on vellum with numbered pencils and Mylar with plastic lead. This was a fun experience in the sense that I ...
From Dell / Intel®
Increased Workstation Performance Is as Easy as 'DPPO'
Trey Morton, Dell, 4/25/2013    2
I've been using workstations for more than 10 years and love finding ways to get more performance from my system. With demanding professional applications that require more power each ...
From Dell / Intel®
Taking Some of the Grit out of Manufacturing
Kirsten Billhardt, Manufacturing Industry Marketing Strategist, Dell, 3/26/2013    5
A lasting memory from my first job as an engineer in an auto assembly plant is standing on hard concrete at six in the morning, vending-machine coffee clutched in hand, listening to ...
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
May 20 - 24, Automation Technologies & Trends for Smarter Homes & Buildings
SEMESTERS: 1  |  2  |  3


DN Radio
Sponsored by
NEXT UPCOMING BROADCAST
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
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 © 2013 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service