HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
<<  <  Page 2/2
sensor pro
User Rank
Gold
Re: BMW's Percussion disconnect for Z3
sensor pro   3/20/2012 12:12:34 PM
NO RATINGS
What would be the result of an accident if the dent is in the area of the bettery and the terminal shorts to some other part of the body of the car. ?

I'm not sure the relay will help.

TJ McDermott
User Rank
Blogger
Insulation too
TJ McDermott   3/20/2012 11:48:44 AM
NO RATINGS
The cables in question will be exposed to temperature extremes (0-100 F in ambient swing alone).  The insulation of these cables will have to stand up to that, as well as engine heat, and do so for a design life of a decade or more.  No cracking or degradation of the insulation will be acceptable.

trawickim
User Rank
Iron
BMW's Percussion disconnect for Z3
trawickim   3/20/2012 10:56:25 AM
NO RATINGS
The BMW 2000 Z3 already has the answer to post accident power removal  with percussion connector at positive battery post.

The unit is designed to fire and disconnect battery source upon deployment of airbag from accident.

Sehr gutes engineering von BMW!

 

Trawickim

 

Alexander Wolfe
User Rank
Blogger
Re: Greater potential shocks
Alexander Wolfe   3/20/2012 9:05:18 AM
NO RATINGS
Your imagination is correct, Rob. Even in non-accident situations, the use of higher voltages adds an additional layer of engineering, as Chuck points out, in the form of isolators. Supposedly, a high-voltage isolator fault was at issue in the recent Fisker Karma car which "died" when it was brought out to Consumer Reports's test track.

Rob Spiegel
User Rank
Blogger
Greater potential shocks
Rob Spiegel   3/20/2012 8:13:05 AM
NO RATINGS
I would imagine the high voltages would also come with higher potential safety problems. I would imagaine the higher voltages could be an issue in collisions.

<<  <  Page 2/2


Partner Zone
Latest Analysis
Ever wanted your own giant robot? Three engineers did, and now they want to make 15-ft, fighting MegaBots a household name.
Here are 10 examples of the wide range of new technology on display at Pack Expo in Chicago earlier this month.
For decades, engineers have worked to combat erosion by developing high-strength alloys, composites, and surface coatings. However, in a new paper, a team at Jilin University in China turned to one of the most deadly animals in the world for inspiration -- the yellow fat-backed scorpion.
Freescale Semiconductor has rolled out a development system that aims to help automotive engineers create Ethernet-based multimedia hubs inside the vehicle.
Green energy is being billed as a way to make communities that are energy deprived more self-sustaining. So it makes sense to use natural materials to create devices that harvest this type of energy. That’s the idea behind a hybrid wind/solar energy harvester made of bamboo that’s been developed by UVM researchers.
More:Blogs|News
Design News Webinar Series
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 11:00 a.m. California / 2:00 p.m. New York
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.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.
Nov 17 - 21, Analog Design for the Digital World
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.
Last Archived Class
Sponsored by Littelfuse
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