More details on the self-driving Uber vehicle that killed an Arizona woman walking her bicycle.

CarAndDriver, By Clifford Atiyeh

© CarAndDriver | Uber Reportedly Removed Critical Auto-Braking System on Self-Driving Test Car

A new report spotlights more troubles for the ride-hailing company Uber on the eve of a National Transportation Safety Board meeting about the deadly March 2018 crash involving a self-driving Uber and a pedestrian walking her bicycle.

Automotive Newsciting unnamed sources, reports that the company deactivated a critical feature on self-driving test cars to promote "comfort over safety."

The NTSB and the U.S. Senate are holding meetings this week over the fatal crash in Tempe, Arizona.

Uber removed a critical safety feature that could have prevented the death of an Arizona pedestrian who was hit by one of the company's vehicles while its driver was watching The Voice on her phone, according to new information from Automotive News.

The newspaper cited anonymous people who had worked on Uber's self-driving prototypes as saying the ride-hailing company chose to scrap an automatic braking feature from its 200 test vehicles operating in Tempe, Arizona because it wasn't "smooth" enough. The information comes one day before the National Transportation Safety Board meets to discuss the accident that killed Elaine Herzberg, 49, as she crossed an empty street in Tempe, Arizona, on March 19, 2018.

In its initial reports, the NTSB said the Uber-modified Volvo XC90 had detected Herzberg with its lidar and radar sensors for six seconds prior to impact while the driver, Rafaela Vasquez, was looking down at a phone at the time of the crash. Uber had also deactivated Volvo's standard factory safety systems. Vasquez has not yet been charged with a crime.

Uber was cleared of criminal misconduct by one of the state's county attorneys in March after the office found that the car's onboard video "likely does not accurately depict the events that occurred," according to the office's statement. The investigation remains in the hands of the Tempe police.

AN reports that the feature Uber removed, called Reflex, was developed by Uber itself, designed to initiate hard braking out of an abundance of caution. While this feature was under development, the company also developed an "action suppression" that would "delay hard braking by one second to account for the possibility these frequent braking events were false positives." The Reflex system was considered a backup to this suppression system, according to AN, but it was then removed from the vehicles several months before the crash. Uber was more concerned with pleasing investors and its new CEO, Dara Khosrowshahi, for its "ability to provide smooth rides," according to AN. 

More details will surely come out as a result of the NTSB meeting on Tuesday and a Senate Commerce Committee meeting on Wednesday.

This article was originally published in CarAndDriver.
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