Tesla Inc (TSLA)

[boston745]

New details revealed in crash that killed Fresno doctor, wife. Police cite ‘excessive speed’

Excessive speed was the determining factor that caused a fatal car crash in October involving a prominent and well-loved doctor and his wife, Fresno police said Tuesday. The crash happened shortly before 9:30 p.m. Oct. 13 on Friant Road north of Champlain Drive when Dr. Alfred Valles was driving a Tesla at an excessive speed. Police in an update said Valles was driving a Model S Plaid, which Tesla says “has the quickest acceleration of any vehicle in production.” The department’s Collision Reconstruction Unit said Valles was estimated to be driving around 124 mph at the time of the impact. “No other associated factors were identified,” police said.

No chit that this accident was caused by excessive speed. It was excessive speed that led to the accident at the border when a Bentley Flying Spur attacked border patrol yet they believe the accelerator might have been stuck on that one. No, this article is tailored to leave the reader assuming the good doc was out joyriding with his wife pushing his Plaid for some fun and not that there was a malfunction where the ECU sent the wrong instructions making his Tesla think the driver was putting more pressure on the accelerator. There was some skid marks but the police are not disclosing the marks source.

It wasn’t what one would expect for a terrorist attack. Mechanical failure, specifically a stuck accelerator, has been speculated.

What's worse is that the incorrectly increased sensor signals will be sent via the CAN bus to the vehicle logs, causing Tesla and NHTSA to conclude that the driver caused the sudden increase in torque by stepping on the accelerator pedal. But in this case, the sudden acceleration was caused not by the driver stepping on the accelerator pedal but by a random superposition of a negative-going voltage spike (which is about 100 microseconds long), and the sampling time of the analog-to-digital converter (which is about 10 microseconds long). This random superposition explains the low occurrence rate of sudden acceleration in Tesla vehicles

Its not random its electromagnetically induced which is why the occurrences are low. Takes the right combination of variables usually to do with the conductivity of the earths soil, during or in the days following an increase in geomagnetic activity, in the vicinity of the vehicle and that vehicle being susceptible to it. I have yet to see any indication that man-made EM sources can cause this problem. SUA happens in the city and country but then stops when earths geomagnetic activity calms down. Ive also seen a pattern where incident count drops off during the Russel-McPherron Effect around the equinoxes. Specifically in a given year before the spring equinox incident count drops off and around and after the equinox occurrence rate ramps back up. Then in the Fall the opposite occurs where incident count is abnormally high before the equinox and then drops off for a few weeks after the equinox.
Interestingly this was one of the last out of control accidents for a good month when solar activity dropped off.

External electromagnetic interference refers to that caused by electromagnetic radiation of various electrical facilities including the high voltage transmission line, broadcasting TV devices and radio communication equipment as well as natural phenomena such as lightning.

Electromagnetic wave interferes the electric control system of automobile through wiring harness and car body to make it hard to perform or even send wrong instructions leading to wrong actions of various actuators, affecting the safety, reliability and stability of automobile driving. The electromagnetic interference affects the automobile electronic control system mainly in two ways: one is to affect the input signal of the sensor of the electronic control system, causing distortion and resulting in electric control signal where the ECU output does not match the driver's intention, which leads to the wrong operation of the actuator; the other is to interfere the ECU output signal to result in its deviation, misleading the operation of the actuator.

Quote Sources:
https://www.fresnobee.com/news/local/article282705508.html
https://ricochet.com/1517714/the-mystery-of-the-flying-flaming-bentley/
https://www.autoevolution.com/news/breaking-nhtsa-petition-shows-tesla-s-sudden-unintended-acceleration-is-real-and-curable-217525.html
https://www.researchgate.net/publication/346368508_Special_Investigation_and_Countermeasure_Suggestions_on_Electric_Vehicle_out-of-control_Accidents