Can electric cars stall? Yes, and VW has the recall to prove it

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Source:   —  April 01, 2016, at 5:30 PM

The EV hatch may brick itself if the battery management software treats a brief surge in the electrical current as a critical condition and shuts down the battery, which then deactivates the drive motor itself."Under certain conditions, oversensitive diagnostics in the high-voltage battery management system may inadvertently categorize a brief internal electrical current surge/peak as a critical battery condition," VW stated in its memo to dealers.

Can electric cars stall? Yes, and VW has the recall to prove it

VW e-Golf battery may close down, but secondary systems such as airbags and steering will stay on

Volkswagen will recall some 5.561 examples of the e-Golf from the two thousand fifteen and two thousand sixteen model years; the entirety that have sold to date since the model was launched in November two thousand fourteen. The EV hatch may brick itself if the battery management software treats a brief surge in the electrical current as a critical condition and shuts down the battery, which then deactivates the drive motor itself.

"Under certain conditions, oversensitive diagnostics in the high-voltage battery management system may inadvertently categorize a brief internal electrical current surge/peak as a critical battery condition," VW stated in its memo to dealers. "Unexpected shutdown of the vehicle’s electrical drive motor (“stalling”) can lead to a crash."

A stall, however, won't affect other systems such as airbags, power steering, or lights as they running off a 12V low voltage system. So in the event of a crash following a stall airbags are expected to trigger as designed, and headlights won't go out if a battery shuts down at night.

The automaker says it's received a handful of reports of stalls, but that number crashes have occurred. VW will apply a software patch to exact the issue, and says the fix won't require any hardware changes.

The automaker will start notifying owners in the U. S. shortly, and the recall will comprise unsold examples of the e-Golf at dealerships as well.

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