Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 4   >   >>
Chris88997
User Rank
Apprentice
Re: Car Bugs
Chris88997   1/14/2014 2:50:39 PM
NO RATINGS
What, exactly, did you expect your ABS system to do in an ice storm on a hill?  Do you think it could change the coefficient of friction of your tires on ice to make it like dry pavement?

Ditto for antifreeze and water on a hill.

 

junko.yoshida
User Rank
Blogger
Re: Now Honda
junko.yoshida   11/25/2013 9:14:40 AM
NO RATINGS
@HankWalker, interesting. Thanks for chiming in.

As I talk to more people, it's clear that it's not just Toyota who is having problems with software. One industry expert told me last week in Japan, "Every carmarker is sharing the similar pain and is of as quilty."

junko.yoshida
User Rank
Blogger
More about Task X
junko.yoshida   11/25/2013 9:10:27 AM
NO RATINGS
We have subsequently discovered more about task X.

Here's a follow-up story: Toyota Trial: Transcript Reveals 'Task X' Clues

http://www.eetimes.com/document.asp?doc_id=1319936

HankWalker
User Rank
CEO
Now Honda
HankWalker   11/4/2013 11:30:11 AM
NO RATINGS
Yesterday there were articles on a large recall of 2007-2008 Honda Odysseys due to a defect in the active stability control, which would cause the system to slam on the brakes as the car was driving along, without activating the brake lights! The underlying problem is supposedly in a yaw sensor, but obviously the software cannot deal with a faulty sensor. This is the second such recall. Honda claims there have been no injuries, so we don't have the expert analysis to determine what is wrong with their software that it cannot handle sensor problems.

 

William Miller
User Rank
CEO
Re: Car Bugs
William Miller   11/1/2013 11:05:40 AM
NO RATINGS
You're right. Bugs in a car bought for a lot of money are frustrating and annoying! Why can't they make massive production goods without failing? Car parts are easy to buy, but human parts are something totally different! travel insurance

junko.yoshida
User Rank
Blogger
Re: X means...
junko.yoshida   10/29/2013 2:34:54 PM
NO RATINGS
We just posted excerpts of the trial transcript -- relative to Task X.

http://www.eetimes.com/document.asp?doc_id=1319936&

Expert witness Michael Barr describes it as "Kitchen-sink" task. 

junko.yoshida
User Rank
Blogger
Re: X means...
junko.yoshida   10/29/2013 8:29:32 AM
NO RATINGS
Will do.

MS243
User Rank
Manager
Re: The underlying failasy of the Barr analysis
MS243   10/28/2013 9:09:32 PM
NO RATINGS
f@Plurph -  You would be surprized at how many items come up during flight testing on an Aircraft -- or even on one system on an aircraft --  System level simulation still has a long way to go -- then there are items like SEU in CPU's  MCU's and FPGA's that often are left for the FAA to analyze after certification!

rob18767
User Rank
Manager
Safety Critical
rob18767   10/28/2013 4:09:50 PM
NO RATINGS
After working on safety critical software I can see that potentially some sort of redundancy based system may be required. It may be expensive to develop however it would minimize risk of harm. 

Phluph
User Rank
Rookie
Re: The underlying failasy of the Barr analysis
Phluph   10/28/2013 1:33:33 PM
NO RATINGS
Hardware (mechanical, electrical, and electronic) and software for aerospace/aviation/medical devices are a whole different ballgame than that for general industry and business much less personal use. The FAA and FDA have reams of criteria that must be met regarding possible failure modes and required results. As pointed out in the Airbus example and more recently Boeing's battery problems major items can still slip through but all in all, as should be that is very very rare..

What does bother me is that it sounds like there are NO gov standards for all the drive by wire systems showing up. Throttle/transmission/ignition 'key' being computer driven is bad enough but now several high-end vechicles also sport full drive-by-wire steering as well. Scary....

As a side note, those reqs are why personal electronics were so restricted on flights until recently - it was (and still is) impossible to test the possible interactions between avionics and all the different makes & models of toys people bring on board. So, just easier to ban them until sufficient body of anicdodal evidence could be gathered saying '99.999999999% sure should be no problem'.

Page 1 / 4   >   >>


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
Carlos Bueno

Adventures in Userland
Carlos Bueno
Post a comment
Editor’s Note: Excerpted from Lauren Ipsum: A story about computer science and other improbable things, author Carlos Bueno introduces us to Lauren and her adventures in ...

Max Maxfield

Tired Old iPad 2 vs. Shiny New iPad Air 2
Max Maxfield
9 comments
I remember when the first iPad came out deep in the mists of time we used to call 2010. Actually, that's only four years ago, but it seems like a lifetime away -- I mean; can you remember ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 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 ...