Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 5 / 5
DrQuine
User Rank
Author
how were ignition switch issues missed?
DrQuine   3/4/2014 6:16:59 PM
NO RATINGS
Hindsight is always 20-20 but some issues are hard to uncover at first. I suspect there were three issues at play here. First, was there a torque specification to move the ignition switch between positions? If not, there there was no test for incoming quality assurance to perform to ensure that the switches met torque specifications. Second, as a switch ages, the components may loosen up and the necessary torque may be reduced. If the torque parameter is not part of the specification, then there would be no reason for repetitive testing of the switch to see if the necessary torque reduced through time. (The expected lifecycle testing to ensure the switch continued to work would not detect this issue). Finally, there has been a trend for keychains to get heavier and bulkier as remote controls, multiple car keys, house keys, work keys, and additional security features get added to the mix. A single key in the ignition could probably run forever without causing trouble. With the benefit of hindsight, it all makes sense. The necessary specifications and test protocols should be simple to implement.

junko.yoshida
User Rank
Author
Re: Like Toyota?
junko.yoshida   3/4/2014 2:51:52 PM
NO RATINGS
@Bert, I spotted yesterday that my colleague Chuck Murray over at our sister publication Design News did a great job reporting on this -- so I decided to move this story over here at EE Times.

The blame, i think, actually goes to not just GM but also to NHTSA for the lack of their oversight. 

But more relevant to our community and even more fascinating about this story is, as Chuck wrote in his story, this could be a good case study for how big manufacturers [like GM] handle the smallest details of design [or they didn't actually handle it very well]. 

 

Bert22306
User Rank
Author
Like Toyota?
Bert22306   3/4/2014 1:53:26 PM
NO RATINGS
I was hoping EE Times would publish an article about this, but quite honestly, I thought it would be Junko!

Could this be the same sort of phenomenon as the Toyota unintended acceleration story? The numbers are so small, compared with vehicles of that type on the road, that the issue only seems like glaring oversight when looking back? Doesn't look good for GM, that's for sure.

At least this time, it didn't take a high visibility lawsuit!

<<   <   Page 5 / 5


Top Comments of the Week
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

Awesome 3D Electronic Sculptures
Max Maxfield
10 comments
I recently received an email from someone we'll call Martin (because that's his name). Martin's message was short and sweet. In its entirety it read: "You need to see this!"

Jack Ganssle, Embedded.com

Processor Pinups
Jack Ganssle, Embedded.com
4 comments
My wife and I joke about our “adult” magazines. For her, those are the publications about beading. For me, they’re tool catalogs and Fine Woodworking magazine. The latter ...

Rajaram Regupathy, Cypress Semiconductor

Add USB Battery Charging Protocols to an Android-Based Design
Rajaram Regupathy, Cypress Semiconductor
Post a comment
Editorial Note: Excerpted from Unboxing Android: A hands on approach with real world examples, by Rajaram Regupathy, the author takes you through the process incorporating effective power ...

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 ...
Radio
LATEST ARCHIVED BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll