Russ Steele
This story appeared in the
Detroit Free Press. It may sound far-fetched, but federal regulators are studying whether sudden acceleration in Toyota cars is linked to cosmic rays. Consider this:
I worked for TRW who made integrated circuit chips for special government applications in the 1990s. They had a program called VHISC, which used exotic material to produce very high speed ICs. During testing the chips had their covers removed. The testing was not going well. Something was interfering with the chips performance. One night an engineer was trying to solve the problem in the lab, when security guard came into the lab and shut off the fluorescence ceiling lights. He did not know the engineer was in the lab. Presto the problem went away. The ballast in the lights was producing the interference. Once the lights in the lab were replaced with incandescent lights the testing resumed.
The FB-111 was a digital airplane, all the bombing and navigation systems were computer driven. The computer systems experienced random failures in flight. General Dynamics had no solutions. As an electronic warfare officer I was familiar with static discharge on antennas, and investigated the problem on my own. The problem turned out to be how an interface cable was routed over the pitot boom. Flying into dry snow, jet stream and wet clouds from dry air caused a static discharge.
Today ICs used in spacecraft and aircraft applications have extra shielding from cosmic rays and static discharge, but this requirement has received little attention in the auto industry.
The sun is very quiet, thus allowing more high energy cosmic rays to reach the earths surface. These cosmic rays produce more low level clouds and global cooling. They could also be causing errors in Toyota computer systems. Perhaps it is time for a closer look.
When I first suggest static discharge as the FB-111 computer problem, the General Dynamic engineers rolled their eyes and looked at ceiling, with a smirk on their face. Who was this AF idiot, with no engineering degree, telling them how to solve a problem they did not understand. Well, my research into atmospherics paid off, it was static discharge that left no evidence. Cosmic rays also do not leave any evidence.
The article explains:
With more than 3,000 complaints to U.S. regulators of random sudden acceleration problems in Toyota models, several researchers say single event upsets deserve a close look.
The phenomenon can trigger software crashes that come and go without a trace. Unlike interference from radio waves, there's no way to physically block particles; such errors typically have to be prevented by a combination of software and hardware design.
And an anonymous tipster told NHTSA last month that "the automotive industry has yet to truly anticipate Single Event Upsets. Stay Tuned. Based on my experience it seems reasonable to me, Toyota might want to be paying more attention.
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