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L3 driving is only available at low speeds, approx 35mph which means only useful for stop-and-go traffic. Many cars with adaptive cruise control can already do

L3 driving is only available at low speeds, approx 35mph which means only useful for stop-and-go traffic. Many cars with adaptive cruise control can already do this. Source: https://www.rambus.com/blogs/driving-automation-levels/#level3 https://www.rambus.com/blogs/driving-automation-levels/#leve...

judge2020 4y ago
The public page makes no such distinction[0]. I created a mySAE account to download the full spec. What I found is that the manufacturer generally has fairly free reign to define their "operational design domain (ODD)" for level 3 systems, aka what conditions the car's "level 3" operation is designed for and can operate under. The only real requirement for level 3 is that OEDR is required (monitoring the driving environment (detecting, recognizing, and classifying objects and events and preparing to respond as needed) and executing an appropriate response to such objects and events (i.e., as needed to complete the DDT and/or DDT fallback [fallback to driver]). 0: https://www.sae.org/blog/sae-j3016-update https://www.sae.org/blog/sae-j3016-update
- gumby 4y ago
  Those are SAE’s criteria but I wonder what Federal and state DoT’s have to say about the matter. Props to SAE for making their spec free do download, modulo a gratuitous account.
drusepth 4y ago
Then why does the article claim Mercedes is the first automaker to offer L3 driving?
- kube-system 4y ago
  The difference is the confidence level. The required level of supervision. Other cars, like Teslas, can “do” this task, but not with enough certainty that they are safe to do it while not being actively monitored by a driver.
  - ultrablack 4y ago
    Teslas did this years ago. The standard autopilot could do this, at speeds up to 100miles/hour. Later, they add the nag. 2018 I think.
    - kube-system 4y ago
      Yes, at SAE J3016 level 2.
miles 4y ago
> L3 driving is only available at low speeds, approx 35mph In that case, this paragraph from the article doesn't make much sense (in fairness, it was on pretty shaky ground to begin with): > Mercedes’ Level 3 conditionally automated driving assistant can, on suitable highway sections [emphasis added] and where traffic density is high, offer to take over the driving, leaving the driver free to do something else, like watch a movie or participate in a meeting.
- andrewf 4y ago
  It's for people stuck in traffic on a congested highway.
- manfre 4y ago
  Highways during rush hour in many cities have traffic that moves very slowly for many miles/hours. This L3 is perfect for those situations where people are reading books during the stop and go.
theluketaylor 4y ago
The big difference is MB is taking liability in the event of a collision and he car won’t simply hand control back to the driver. This is much more advanced than any L2 system and the fact MB is taking liability is a whole different ballpark.

judge2020 4y ago

The public page makes no such distinction[0]. I created a mySAE account to download the full spec. What I found is that the manufacturer generally has fairly free reign to define their "operational design domain (ODD)" for level 3 systems, aka what conditions the car's "level 3" operation is designed for and can operate under. The only real requirement for level 3 is that OEDR is required (monitoring the driving environment (detecting, recognizing, and classifying objects and events and preparing to respond as needed) and executing an appropriate response to such objects and events (i.e., as needed to complete the DDT and/or DDT fallback [fallback to driver]). 0: https://www.sae.org/blog/sae-j3016-update https://www.sae.org/blog/sae-j3016-update

gumby 4y ago
Those are SAE’s criteria but I wonder what Federal and state DoT’s have to say about the matter. Props to SAE for making their spec free do download, modulo a gratuitous account.

drusepth 4y ago

Then why does the article claim Mercedes is the first automaker to offer L3 driving?

kube-system 4y ago
The difference is the confidence level. The required level of supervision. Other cars, like Teslas, can “do” this task, but not with enough certainty that they are safe to do it while not being actively monitored by a driver.
- ultrablack 4y ago
  Teslas did this years ago. The standard autopilot could do this, at speeds up to 100miles/hour. Later, they add the nag. 2018 I think.
  - kube-system 4y ago
    Yes, at SAE J3016 level 2.

miles 4y ago

> L3 driving is only available at low speeds, approx 35mph In that case, this paragraph from the article doesn't make much sense (in fairness, it was on pretty shaky ground to begin with): > Mercedes’ Level 3 conditionally automated driving assistant can, on suitable highway sections [emphasis added] and where traffic density is high, offer to take over the driving, leaving the driver free to do something else, like watch a movie or participate in a meeting.

andrewf 4y ago
It's for people stuck in traffic on a congested highway.
manfre 4y ago
Highways during rush hour in many cities have traffic that moves very slowly for many miles/hours. This L3 is perfect for those situations where people are reading books during the stop and go.

theluketaylor 4y ago

The big difference is MB is taking liability in the event of a collision and he car won’t simply hand control back to the driver. This is much more advanced than any L2 system and the fact MB is taking liability is a whole different ballpark.