Google Wants To Test Driverless Cars In a Simulation

An anonymous reader writes Google has been testing its autonomous vehicles on U.S. roads for a while now. In fact, they're required to, by law. "California's regulations stipulate autonomous vehicles must be tested under "controlled conditions" that mimic real-world driving as closely as possible. Usually, that has meant a private test track or temporarily closed public road." It's easy enough to test a few prototypes, but whenever autonomous cars start being produced by manufacturers, it'll become a lot more complicated. Now, Google is lobbying to change that law to allow testing via computer simulation. Safety director Ron Medford said, "Computer simulations are actually more valuable, as they allow manufacturers to test their software under far more conditions and stresses than could possibly be achieved on a test track." Google spokeswoman Katelin Jabbari said, "In a few hours, we can test thousands upon thousands of scenarios which in terms of driving all over again might take decades." Shee adds that simulator data can also easily provide information on how human behavior creeps into driving. "It's not just about the physics of avoiding a crash. It's also about the emotional expectation of passengers and other drivers." For example, when one of Google's computer-controlled cars is cut off, the software brakes harder than it needs to, because this makes the passengers feel safer. Critics say relying heavily on simulation data is flawed because it doesn't take into account how other cars react to the computer's driving.

Comments

so what is the problem?

[m2shariy]

Test in the fscking simulation and then test on the street. Win-win.

Re:so what is the problem?

[dnavid]

Test in the fscking simulation and then test on the street. Win-win.

You don't need to ask for permission to test your car with simulations. You only have to ask for permission to replace real world testing with simulations. Personally, I'm not fond of replacing real world testing completely with simulations. The problem is that the point of testing software is to make sure the programmers have properly dealt with as many possible real world situations, and to reduce the likelihood the programmers haven't ignored an unexpected circumstance. Simulations can only test for what the simulation programmers have accounted for. Its substituting the system programmers' judgment for the simulation programmers' judgment. Its useful, but in my opinion insufficient.

Re:so what is the problem?

[Your.Master]

I'd flip it around. An automated car should be required to pass both a road test and a bevvy of simulated scenarios.

Re:Simulations are limited by imagination

[ShanghaiBill]

For example, you might test the scenarios "front camera obscured by rain", "car ahead of you performs emergency stop", and "dog runs into street", but that doesn't necessarily tell you how the car will respond to a combination of the three.

This seems backwards to me. Testing combinations of scenarios happening simultaneously would be far easier in a simulator.

Re:Adding Politics to Engineering Decisions

[siphonophore]

The real story is an unbroken 50-year streak of improvements in safety driven and executed by engineers. A series of recalls is nothing compared to the 60% decline in traffic deaths brought about by new safety technology and it's rapid adoption. Driverless cars are a new safety technology. Let's adopt them already!

Would 2014 America hold up seat belt installation for ten years just to make sure they are totally, exactly, 100% safe?