Dr. Gilbert Explains His Research Into Toyota Electronics
February 26th, 2010 9:37 AM
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Key quote: “What I have done is, I have shown that in the fault detection strategy of the Toyota systems, there’s a window of opportunity where [an error] could occur and not be detected.”
More by Edward Niedermeyer
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Steven, no, Gilbert's paper wasn't published on that shyster's SRS website you linked to, because I went there when this was all going down last week, and it was blank. And it didn't show up on the House committee's website, as one of Gilbert's documents. He's been reticent to publish this, for some unknown reason. Which is strange, because he seems to have some supportable points, and it does raise some interesting questions, to me and the noobs at least. I suspect the electronics experts are still digesting this, and will have a response to it eventually. I agree with Bertel's idea a bit earlier, that if he had zapped that system with a clean 5V, and it failed, he woulda put that up front in his testimony, in bold letters. That's what makes Gilbert's reticence so confusing here.
A short is nothing more than a path from one circuit to another. If the impedance of one affected is 1 megohm then a path of less than that that that interrupts the normal signal is a short. With a 5 volt logic of a TTL signal it will be below a milliamp of current. 40 year of electronics!
There appears to be two problems: 1. Unintended accelerations and anomalous behavior. 2. Cruise control engagement problems.
Don’t know what the dotted line is, I assume it denotes some mechanical linkage between the two theoretical “wipers.” Dashed lines show that mechanically they are connected in motion, no electrical connection.