Any route planners take elevation loss/gain into range and charging calculations?
Seasoned EV driver/owner here with ~75k miles under my belt. Been driving an EV for over 4 years. My wife and I each have one (Blazer & bZ4X) and my previous company vehicle was a Mach-E. We are planning our first out-of-state road trip from the Denver area…
Seasoned EV driver/owner here with ~75k miles under my belt. Been driving an EV for over 4 years. My wife and I each have one (Blazer & bZ4X) and my previous company vehicle was a Mach-E. We are planning our first out-of-state road trip from the Denver area to the Dallas area with a 6,000ft elevation change. Not concerned about range calculations for the trip south because I know the elevation loss will work in my favor. However, when I’m looking at planning apps like ABRP, do they take elevation loss or gain into their planning? We’re planning on splitting the trip down into 2 days with an overnight at a hotel with L2 chargers but want to make the drive home in one day. How much should I trust the charging stops and times? I’m assuming I need to expect longer charging times and probably a stop or two more for the return trip. Does anyone have any experience in road trips with elevation changes? Have you found an app that is accurate or should we just accept the unknown and be ready for a longer trip?
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Yes. A Better Route Planner (ABRP). Even Google maps has rolled that out now.
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When he vehicle is using Google Maps via Android Automotive, all vehicle specific parameters are considered.
You are right, I was going to say the same thing. Rivian also seems to take this into account on their car's route planning. And tesla does a great job of estimating range at destination including road conditions and your speed. It modifies it as you drive too, slow down and after a mile or too range will increase to reflect your driving speed.
In my experience in Teslas and lots of other vehicles with ABRP, the estimates are really similar (if you have an OBD adapter for ABRP). ABRP with OBD == Tesla
How is Apple Maps and planning a route with a battery EV, in general? Haven't used Apple Maps for that, as we usually use Google Maps with Mercedes MBUX because the integration is tight. Is Apple Maps good for battery EV trip routing and charging?
Ya gmaps won't plan charging stops. It's just calculating estimated use by elevation and stuff. ABRP is what you are looking for.
I don't know of one that doesn't. ABRP, Google maps, Tesla, all do and have for years.
ABRP does.
It works for me when I plug in a destination in Google Maps from my Equinox, it knows the state of charge and the range automatically, and will automatically route me to chargers. Everything “just works”. I don’t even route plan anymore, I just go.
Yes ABRP does. They will also show you the change in elevation on the map and adjust the charging stops
Ive got google maps coupled to my car. Knows what it is and I can set the state of charge Im starting at.
As mentioned ABRP does. What hasn't been mentioned yet is you can see the SOC vs elevation along a specific leg of the route by clicking on the leg in the map. It will show you a graph.
I've been trying Google Maps for EV route planning. I'm having a hard time with getting use to it. It's really hard to see the distance between stops so I can do my own mental math calculations to verify what charging stops it planned. It did map chargers out for me.
The Google Maps built into Android Automotive does this.
Apple Maps does. You need a car that integrates battery percentage with CarPlay, though. So fat that’s just Toyota, Ford and Porsche
I used ABRP to plan a trip from Santa Fe to San Diego. It said that I would reach the first charging stop at 22%. An hour into the drive and I had 40 minutes more to drive with only 35% charge left. I panicked, stopped at an intermediate charger and charged to 60%. I arrived at the next charger with 47%, right on the money. That last part was a lot more downhill than I thought it would be. It was accurate within 1-2% of predicted charge the rest of the way.
The Blazer at least I know is constantly updating its calculations because Google Maps talks to the car. I have the Equinox and recently did a trip between Minneapolis and KC. Leaving KC it projected I would need to stop in suburban Des Moines for the first charge. When I plugged it in to Google Maps at the hotel it predicted a 15% SOC in Des Moines. I don't know if we had a tailwind or what but it kept updating going up I35 increasing that percentage to what ended up being the accurate 32% on arrival, even with a lengthy construction related traffic jam in rural MO. I have Plugshare on my phone to scout out "reliable" chargers before the recommended one, but otherwise pretty much went off the cars recommendations and it was a very smooth trip!
ABRP does. If you plan a trip uphill and then plan the same turned around downhill, the trip energy calculation turns around.
These kind of elevation change over such a long distance doesn't really matter that much. Yes, overall, efficiency will be a bit lower on the way back, but over the span of 150 miles between charge stops it doesn't really matter. There are much bigger factors like wind. Especially if you are going through Kansas, the wind coming back will matter a lot more.
Do you know what also affects range? Wind. ABRP accounts for wind for range prediction but for live data, you must have the premium subscription.
I've been amazed how telsa gets this right. We've probably done over 40k miles in road trips, and it's been pretty spot on. Even accounting for the cold weather. It's amazing how far behind others are in regards to this.
I used ABRP for trip planning, but what I found on long road trips was that the stops changed a bit based on conditions. SO the actual day of, I just used the onboard sat nav in my Tesla.
you could do a bit of calculating yourself. average EV for such altitude change could consume ~10 kWh
I have an OCD with math, and that includes fuel economy (cant speak for EVs). Driving to/from Denver is almost identical fuel economy (within couple of mpg) assuming same driving style. Direction of wind will likely have a greater impact than elevation change. In the end, you may lose , may be 70-80 miles total returning (compared to no change in elevation). This could mean an extra 20 kWh total over the distance.