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It's not quite as bad as it seems. The first high speed stop CR did produced the expected and acceptable result. But when they repeated the test they started
by sunstone 8y ago
It's not quite as bad as it seems. The first high speed stop CR did produced the expected and acceptable result. But when they repeated the test they started to get poor results. Under normal driving conditions you don't often repeatedly slam on the brakes from 60mph. Now this isn't a complete absolution of Tesla under the circumstances but it does go some way to explaining how this software bug got into the wild when it shouldn't have.
- dpark 8y agoThat’s still pretty bad, honestly. All it took was repeated testing to trigger the issue? That indicates that either Tesla’s testing was woefully insufficient here or that they took a late change to braking behavior without a proper re-testing regimen. I can actually understand the latter possibility, but it’s still a giant screw up.
- sunstone 8y agoYes I agree with you. I expect they made a code change in order to stress test a different component of the braking system and then forgot to revert that change. If so, it's a big screw up for this kind of product development. But still, it's much better than "these brakes have a design flaw and can never work properly and we don't know how to make cars".