Autonomous EV hits major technology snags

Science & Technology
Image for illustration only. For image text, go to https://www.techrepublic.com/pictures/photos-the-worlds-self-driving-cars-racing-toward-2020-and-beyond/ (The world's self-driving cars, in photos)

Autonomous EV hits major technology snags

PORT MORESBY: Tesla, the world’s largest Electric Vehicle (EV) and autonomous car manufacturer was recently reported to be struggling financially.

It reported accumulated losses of up to US$700 billion (K2.37 billion) to date, after failing to meet its target launch of its EVs and autonomous cars in 2017.

That all but confirm that autonomous EV technology is still just not there yet.

PNG Cyber Monitor reproduces below two AP news reports giving five common sense reasons why experts think autonomous cars are many years away and Tesla claiming to have developed a new computer chip for autonomous driving:

Five reasons experts think autonomous cars are many years away


TECH NEWS
Wednesday, 24 Apr 2019
10:30 AM MYT
by tom krisher
One of the test vehicles from Argo AI, Ford's autonomous vehicle unit, navigates through the strip district near the company offices in Pittsburgh. The people developing self-driving vehicles say it could be anywhere from 10 years to decades before the cars will be carrying passengers in every city. — AP

PITTSBURGH: In the world of autonomous vehicles, Pittsburgh, Phoenix and Silicon Valley are bustling hubs of development and testing.

But ask those involved in self-driving vehicles when we might actually see them carrying passengers in every city, and you’ll get an almost universal answer: Not anytime soon.

An optimistic assessment is 10 years. Many others say decades as researchers try to conquer a number of obstacles.

That makes Tesla’s declarations that it will offer fully autonomous vehicles by the second quarter of next year all the more striking. The company announced its ambitious plans during an investor conference on Monday. But sceptics doubt that Tesla can pull it off.

Snow and weather

When it’s heavy enough to cover the pavement, snow blocks the view of lane lines that vehicle cameras use to find their way. Researchers so far haven’t figured out a way around this. That’s why much of the testing is done in warm-weather climates such as Arizona and California.

Heavy snow, rain, fog and sandstorms can obstruct the view of cameras. Light beams sent out by laser sensors can bounce off snowflakes and think they are obstacles. Radar can see through the weather, but it doesn’t show the shape of an object needed for computers to figure out what it is.

“It’s like losing part of your vision,” says Raj Rajkumar, an electrical and computer engineering professor at Carnegie Mellon University.

Researchers are working on laser sensors that use a different light beam wavelength to see through snowflakes, said Greg McGuire, director of the MCity autonomous vehicle testing lab at the University of Michigan. Software also is being developed so vehicles can differentiate between real obstacles and snowflakes, rain, fog, and other conditions.

But many companies are still trying to master the difficult task of driving on a clear day with steady traction.

“Once we are able to have a system reliably perform in those, then we’ll start working toward expanding to those more challenging conditions,” said Noah Zych, Uber’s head of system safety for self-driving cars.

In some limited areas that have been mapped in three dimensions, the cars can function in light snow and rain.

Pavement lines and curbs

Across the globe, roadway marking lines are different, or they may not even exist. Lane lines aren’t standardized, so vehicles have to learn how to drive differently in each city. Sometimes there aren’t any curbs to help vehicles judge lane width.

For instance, in Pittsburgh’s industrial “Strip District”, where many self-driving vehicles are tested, the city draws lines across the narrow lanes to mark where vehicles should stop for stop signs. Sometimes the lines are so far back and buildings are so close to the street that autonomous cars can’t see traffic on the cross street if they stop at the line. One workaround is to program vehicles to stop for the line and creep forward.

“Is it better to do a double stop?” asked Pete Rander, president of Argo AI, an autonomous vehicle company in which Ford has invested heavily. “Since intersections vary, it’s not that easy.”

Dealing with human drivers

For many years, autonomous vehicles will have to deal with humans who don’t always play by the rules. They double-park or walk in front of cars. Recently in Pittsburgh, an Argo backup driver had to take over when his car stopped during a right turn, blocking an intersection when it couldn’t immediately decide whether to go around a double-parked delivery truck.

“Even if the car might eventually figure something out, it’s shared space, and it’s socially unacceptable” to block traffic, Rander said.

Humans also make eye contact with other drivers to make sure they’re looking in the right direction, something still being developed for autonomous vehicles.

Add to that the antagonism that some feel toward robots. People have reportedly been harassing Waymo’s autonomous test vehicles near Phoenix. The Arizona Republic reported in December that police is suburban Chandler have documented at least 21 cases in the past two years, including a man waiving a gun at a Waymo van and people who slashed tires and threw rocks. One Jeep forced the vans off the road six times.

Left turns

Deciding when to turn left in front of oncoming traffic without a green arrow is one of the more difficult tasks for human drivers and one that causes many crashes. Autonomous vehicles have the same trouble.

Waymo CEO John Krafcik said in an interview last year that his company’s vehicles are still encountering occasional problems at intersections.

“I think the things that humans have challenges with, we’re challenged with as well,” he said. “So sometimes unprotected lefts are super challenging for a human, sometimes they’re super challenging for us.”

Consumer acceptance

The fatal Uber crash near Phoenix last year did more than push the pause button on testing. It also rattled consumers who someday will be asked to ride in self-driving vehicles.

Surveys taken after the Uber crash showed that drivers are reluctant to give up control to a computer. One by AAA in March found 71% of people are afraid to ride in fully self-driving vehicles.

Autonomous vehicle companies are showing test passengers information on screens about where the vehicles are headed and what its sensors are seeing. The more people ride, the more they trust the vehicles, says Waymo’s Krafcik.

“After they become more and more confident they rarely look at the screens, and they’re on their phones or relaxing or sleeping,” he said. – AP/The Star

Tesla pushes forward on autonomous driving with new computer chip

TECH NEWS
Wednesday, 24 Apr 2019
7:30 AM MYT
Tesla already enables partial autonomy for its cars, but the road to full autonomy faces considerable legal and regulatory hurdles. — Chicago Tribune/TNS

Tesla on April 22 unveiled computer hardware for "full self-driving" capabilities as part of its strategy to bring autonomous cars to the mainstream.

At an investor presentation, the electric carmaker revealed technical details of a new chip and computer being installed in all its vehicles to advance its goals for autonomous driving.

Tesla already enables partial autonomy for its cars, but the road to full autonomy faces considerable legal and regulatory hurdles.

The chip announcement comes as Tesla races with Waymo, Uber and traditional automakers to bring autonomous vehicles to market.

Chief executive Elon Musk said the new custom-designed chip, which he called the best available, was a significant milestone in self-driving.

"At first it seems improbable – how could it be that Tesla, which has never designed a chip before, could design the best chip in the world?" he said.

"But that is objectively what has occurred."

Musk and other Tesla executives at the event in Palo Alto, California said the new chip was being installed in all its vehicles, clearing the way to improve its software and "neural networks" that will effectively drive the autonomous vehicles.

"All Tesla cars being produced have all the hardware necessary... for full self driving," Musk told the event.

"All you need to do is improve the software."

Despite Tesla's claims, its vehicles are not deploying the standard definition of "level 4" autonomy that would handle all functions with a human on standby or "level 5" autonomy that would need no human.

Musk said he expected that with Tesla technology, drivers "would not need to touch the wheel" sometime early next year and that he hoped for regulatory approvals in some areas later in 2020.

He maintained that Tesla's approach using data from its vehicles on the road was better than those of its rivals which rely on simulations.

"We have quite good simulation too, but it does not capture the long tail of things that happen in the real world," Musk said in response to a question.

"The real world is really weird and messy."

Musk also argued that the neural network technology, based on artificial intelligence, was better than the Lidar systems based on light pulses used by rivals.

Musk said his space exploration firm SpaceX uses Lidar for some purposes but that "in cars it's pretty stupid, it's expensive and unnecessary". – AFP/The Star

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