Toyota Trial: Transcript Reveals ‘Task X’ Clues | EE Times

23 мая 2015 | Author: | No comments yet »
Toyota X

Toyota Trial: Transcript ‘Task X’ Clues

Wis. — Following an court judgment against for “unintended acceleration” in some of its after which Toyota to settle with the plaintiffs on damages, the greatest frustration for has been the blockade on information what one expert witness to as Task X .

During EE Times’ with Michael Barr, CTO and of the Barr Group, who was an expert during the trial, he discussed the of “Task X,” which he ultimately caused “loss of control” and also “a of a number of the fail-safes.”

So what is Task X? What is Task X supposed to perform?

said he’s not allowed to about specifics on Task X. the trial transcript offers clues about what it

Kitchen sink

EE Times back to the transcripts of Bookout v. Motor and found the following:

On the stand, Barr described X as “kitchen-sink” function because of an list of chores it’s to perform within an automobile’s system.

In the context of the trial, he explained Task X helps manage control. “It selects the throttle percentage, whether it be 100 percent, 50 percent, 20 percent,” he “And it does that on looking at the accelerator pedal whether the cruise [control] is

Further, Task X executes the code. This makes it both for turning on cruise maintaining speed in cruise and turning off cruise control.

More importantly, Task X is responsible for many of the fail-safes on the CPU,” Barr said the trial.

Excerpts of the court

EE Times is publishing a portion of the transcript relevant to Task X. The QA was carried out when Benjamin E. Jr. representing the plaintiffs, called witness Barr to the stand:

Toyota X

A So the ultimate conclusion from the of these defects is that the could malfunction. And the most such malfunction would be if the car had a of its software that was working, and part was running the combustion air and fuel and spark to the engine at the time that the part the driver was interacting with the accelerator pedal or the cruise switches was not listening to the driver it crashed or hung, like one might crash on your while another one is still

Q [Baker] And are the defects that describing here that can an unintended acceleration, can that when the cruise control is on?

A Yes.

Q Can it occur when the control is off?

A Yes.

Q And it is the software defects that relate to both?

A Yes.

Q go to the next slide. You’re about the software malfunctions

Toyota X
Toyota X

Toyota X
Toyota X

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