Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 10 / 11   >   >>
tb1
User Rank
Rookie
re: Why hasn't that steering wheel gone away?
tb1   3/8/2011 2:49:20 AM
NO RATINGS
Here's a link to an Altera app note on single event upsets: http://www.altera.com/support/devices/reliability/seu/seu-index.html

tb1
User Rank
Rookie
re: Why hasn't that steering wheel gone away?
tb1   3/8/2011 2:42:08 AM
NO RATINGS
If you've ever worked with radiation you know that it only takes one cosmic ray hit to change a flip-flop value. Sometimes it isn't even a cosmic ray--it can be an alpha particle emanating from the ceramic package of an IC. It doesn't happen often, but it does happen (kind of like the lottery). Check Altera/Xilinx/Micron app notes on radiation for statistics on how often it can occur. How will your steering react to that changed flip-flop? Even radiation emanating from a nearby atom bomb explosion won't affect a mechanical steering wheel.

Matt Thayer
User Rank
Rookie
re: Why hasn't that steering wheel gone away?
Matt Thayer   3/8/2011 12:49:09 AM
NO RATINGS
Silicon does fail. But then again, so does metal. I had the seatstays pop off the frame on a bicycle I was riding (putting a premature end to my ride), with not a microcontroller in sight!

zeeglen
User Rank
Blogger
re: Why hasn't that steering wheel gone away?
zeeglen   3/7/2011 11:13:00 PM
NO RATINGS
This is really scary. Time to buy a bicycle. Bill, what vehicles do you know of that do not have mechanical steering linkages? Let us know what to avoid. I do not ever want a shorted transistor to steer my vehicle into oncoming traffic without some sort of over-ride. Sort of like a separate button to shut off a runaway motor.

zeeglen
User Rank
Blogger
re: Why hasn't that steering wheel gone away?
zeeglen   3/7/2011 10:55:10 PM
NO RATINGS
I will never drive a vehicle that does not have a fully mechanical steering linkage. Let's hope that the automotive designers and regulatory agencies continue to think likewise.

BicycleBill
User Rank
Rookie
re: Why hasn't that steering wheel gone away?
BicycleBill   3/7/2011 10:54:05 PM
NO RATINGS
I hate to disappoint all of you who think there is a direct, mechanical connection between the steering wheel and the car's wheels--but in many cars today, it's already drive by wire using a sensor/pickoff on the steering column. So whle we may feel that an all-mechanical system, aided by power assist, is more reliable, you don't have it in many cases, even if the look and feel makes you think you do.

zeeglen
User Rank
Blogger
re: Why hasn't that steering wheel gone away?
zeeglen   3/7/2011 10:50:08 PM
NO RATINGS
Aircraft have backup systems to compensate for failures. It is not a question of "common person" learning how to use a joystick. It is a fact that silicon fails. Shorted or open, silicon fails without warning. I have replaced enough failed transistors to know this.

Duane Benson
User Rank
Blogger
re: Why hasn't that steering wheel gone away?
Duane Benson   3/7/2011 10:28:10 PM
NO RATINGS
The thought of a servo motor failure with a joystick controlled car should scare you. However, even with a steering wheel, drive by wire without a mechanical connection between steering wheel and steering rack, is on the way. Soon it won't matter if it's a joystick or wheel, the failure mode will be just as likely or unlikely and just as catastrophic.

_hm
User Rank
CEO
re: Why hasn't that steering wheel gone away?
_hm   3/7/2011 10:08:03 PM
NO RATINGS
Everyday, so many pilots fly different aircraft machine at much higher speed with many more complex task. However, they are properly trianed for the system. Eventually, system will become more friendly and common person will quicly learn how to use it.

zeeglen
User Rank
Blogger
re: Why hasn't that steering wheel gone away?
zeeglen   3/7/2011 9:46:51 PM
NO RATINGS
Absolutely not! When I am piloting a machine moving at 70 MPH I want the steering to be based on steel, not silicon.

<<   <   Page 10 / 11   >   >>


Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Want a Voltera Desktop PCB Printer?
Max Maxfield
9 comments
I just received an email from my chum Javi in Spain. "Have you heard about Voltera (VolteraInc.com)? It's a Canadian company that is going to offer desktop-size PCB printers for fast ...

Aubrey Kagan

Have You Ever Been Blindsided by Your Own Design?
Aubrey Kagan
37 comments
I recently read GCHQ: The uncensored story of Britain's most sensitive intelligence agency by Richard J. Aldrich. The Government Communication Headquarters (GCHQ), Britain's equivalent of ...

Martin Rowe

No 2014 Punkin Chunkin, What Will You Do?
Martin Rowe
2 comments
American Thanksgiving is next week, and while some people watch (American) football all day, the real competition on TV has become Punkin Chunkin. But there will be no Punkin Chunkin on TV ...

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
15 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...