I'm fairly impressed with the navigation in my i3. I have the "Real Time Traffic" system up and running. I've been running BMW nav side-by-side with Google or Waze and the ETAs are relatively consistent between the systems, even if the routes vary. So I throwing that out there to establish that BMW's nav is traffic aware and generally accurate.
But when BMW nav is set to "Eco Pro Routing," (so not the fastest or shortest route, but the most battery efficient way to go), I've noticed what I think are deficiencies. For instance:
If the freeway is backed up, BMW nav will continue to route me on surface streets, even if it means a 10 minute time penalty. In reality, the freeway is moving as slowly as street traffic. A clogged freeway seems to me to be something Eco Pro Routing should seek out and embrace.
Same situation, but instead of traffic, substitute topography. I have a stretch of freeway near home a bit more than a mile, flat at first then lightly descending, followed by a mile on the street to the house that generally flat with a mild but steady climb at the end. But BMW nav prefers to exit me from the freeway a mile+ early, That route is about a mile shorter, but involves more stop and go on the side streets, plus steeper hills and about double the elevation gain. It *seems* to me the longer route might be more battery friendly, though I can't say that with certainty.
Has anybody seen a technical explanation of how BMW nav Eco Pro Routing chooses the preferred route. Does it take traffic conditions into account? What about topography? Or controlled intersections (i.e. predicted starts and stops)? Is there any machine learning going on, where the system communicates route data back to BMW so it can improve efficient routing over time?
But when BMW nav is set to "Eco Pro Routing," (so not the fastest or shortest route, but the most battery efficient way to go), I've noticed what I think are deficiencies. For instance:
If the freeway is backed up, BMW nav will continue to route me on surface streets, even if it means a 10 minute time penalty. In reality, the freeway is moving as slowly as street traffic. A clogged freeway seems to me to be something Eco Pro Routing should seek out and embrace.
Same situation, but instead of traffic, substitute topography. I have a stretch of freeway near home a bit more than a mile, flat at first then lightly descending, followed by a mile on the street to the house that generally flat with a mild but steady climb at the end. But BMW nav prefers to exit me from the freeway a mile+ early, That route is about a mile shorter, but involves more stop and go on the side streets, plus steeper hills and about double the elevation gain. It *seems* to me the longer route might be more battery friendly, though I can't say that with certainty.
Has anybody seen a technical explanation of how BMW nav Eco Pro Routing chooses the preferred route. Does it take traffic conditions into account? What about topography? Or controlled intersections (i.e. predicted starts and stops)? Is there any machine learning going on, where the system communicates route data back to BMW so it can improve efficient routing over time?