On a recent 700 mile planned day in my 2023 M3 SR+ the onboard computer was recommending what to me seemed like unusually long supercharging stops. Interested if others have observed this and any thoughts on the logic behind these charging plans.
It is normal for the onboard computer to recommend next supercharging stops that bypass several superchargers along the route, but on this day the recommended stops were many more miles apart with resulting charge times of up to 50 minutes. So on this day I was overriding the recommended stops because I wanted a break more often than the computer was recommending. Actually a fine problem to have, but unusual in my experience.
Note on this trip power consumption averaged 224 wh/mile, which is quite close to the lifetime average power consumption for this car. Travel was on interstate highway through the Tennessee and Virginia mountains with modest changes in elevation.
The next morning I got on the road with with about 40% SOC and stopped about an hour later supercharging to about 80% by the time I got a coffee and breakfast biscuit. The car then recommended stopping for a supercharge at the next supercharger along the route, arriving with a 74% SOC and charging to very high SOC that would get the car to the planned destination with 10% SOC. There were three superchargers further along the route all reachable with the current charge. Not being ready to stop I added one of these superchargers to the route and the computer accepted this plan and removed the initial recommended stop apparently agreeing that we could get to the further charger with out problems.
I am interested in any insights that might be behind the long duration charging stops to very high SOC.
It is normal for the onboard computer to recommend next supercharging stops that bypass several superchargers along the route, but on this day the recommended stops were many more miles apart with resulting charge times of up to 50 minutes. So on this day I was overriding the recommended stops because I wanted a break more often than the computer was recommending. Actually a fine problem to have, but unusual in my experience.
Note on this trip power consumption averaged 224 wh/mile, which is quite close to the lifetime average power consumption for this car. Travel was on interstate highway through the Tennessee and Virginia mountains with modest changes in elevation.
The next morning I got on the road with with about 40% SOC and stopped about an hour later supercharging to about 80% by the time I got a coffee and breakfast biscuit. The car then recommended stopping for a supercharge at the next supercharger along the route, arriving with a 74% SOC and charging to very high SOC that would get the car to the planned destination with 10% SOC. There were three superchargers further along the route all reachable with the current charge. Not being ready to stop I added one of these superchargers to the route and the computer accepted this plan and removed the initial recommended stop apparently agreeing that we could get to the further charger with out problems.
I am interested in any insights that might be behind the long duration charging stops to very high SOC.
