Estimated Range vs Navigation Range.

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markanthony
Posts: 8
Joined: Thu Sep 07, 2023 4:03 pm

Post by markanthony »

Hi there.

Here is an issue that is winding me up. For example, my estimated range is 250 miles. The max range displayed on the dash max range map in light grey is 190 miles. When planning a trip using ZapMap the battery remaining at a charge station is a lot more than what the car thinks it is. This can differ by 20% to 30%. This is totally useless. Using the car navigation planner, I would stop at more chargers.

Even if I plan a small trip, say 30 miles, the planner reckons I will be down to 70% at the destination when in fact there is 90% battery remaining.

What is going on?

Thanks.

Cosmyc
Posts: 352
Joined: Fri Jul 08, 2022 6:08 am

Post by Cosmyc »

The sat nav planner is very pessimistic with range, the Nissan app planner is much much more on point.
Nerdy
Posts: 17
Joined: Thu Apr 11, 2024 5:45 pm

Post by Nerdy »

The built-in TomTom sat nav is terrible and the battery estimates are way way out.

I use Android Auto/Google Maps. Sadly doesn't integrate with the drivers display (or heads-up display I think (I don't have a head's up display)
markanthony
Posts: 8
Joined: Thu Sep 07, 2023 4:03 pm

Post by markanthony »

Thanks for the replies. Sort of good to know it's not only my car with the issue. Surely they should fix this with a software update. It's shite.
Nerdy
Posts: 17
Joined: Thu Apr 11, 2024 5:45 pm

Post by Nerdy »

markanthony wrote: Sat Jul 13, 2024 9:05 am Thanks for the replies. Sort of good to know it's not only my car with the issue. Surely they should fix this with a software update. It's shite.

Haha, Nissan and software updates?

The car been on sale for at least 2 years and there's barely been any. See my bug bear about the 360 camera.
markanthony
Posts: 8
Joined: Thu Sep 07, 2023 4:03 pm

Post by markanthony »

Even when I use the app to plan a route and send it to the car, the car constantly tells me I don't have enough range, even though the app states that I will. Why the disparity here? Which one is correct? I mean I don't need either to work but they should work.
Cosmyc
Posts: 352
Joined: Fri Jul 08, 2022 6:08 am

Post by Cosmyc »

markanthony wrote: Sun Jul 14, 2024 12:15 pm Even when I use the app to plan a route and send it to the car, the car constantly tells me I don't have enough range, even though the app states that I will. Why the disparity here? Which one is correct? I mean I don't need either to work but they should work.
The app is correct, the car sat nav is off.
markanthony
Posts: 8
Joined: Thu Sep 07, 2023 4:03 pm

Post by markanthony »

Thanks. I thought that as I tried it on a few short journeys and it's way off. Can't find any other people mentioning this on the net. Weird.
Cosmyc
Posts: 352
Joined: Fri Jul 08, 2022 6:08 am

Post by Cosmyc »

I have already reported to customer support this, maybe you should too?
ashleycarr
Posts: 156
Joined: Fri Jun 10, 2022 4:39 pm

Post by ashleycarr »

markanthony wrote: Fri Jul 12, 2024 6:25 pm Hi there.

Here is an issue that is winding me up. For example, my estimated range is 250 miles. The max range displayed on the dash max range map in light grey is 190 miles. When planning a trip using ZapMap the battery remaining at a charge station is a lot more than what the car thinks it is. This can differ by 20% to 30%. This is totally useless. Using the car navigation planner, I would stop at more chargers.

Even if I plan a small trip, say 30 miles, the planner reckons I will be down to 70% at the destination when in fact there is 90% battery remaining.

What is going on?

Thanks.
There are a number of issues here and some potential solutions you might adopt.

The estimated range displayed is often referred to as the GOM in EV circles, it stands for Guessometer. Only a Tesla seems to have got this close to being right, the rest are in catch up mode. The car can only base its estimate on what has happened immediately before and because the software is not as sophisticated as Tesla, it assumes you will be driving in exactly the same way on the same roads in the same conditions. If that was driving hard in cool conditions into the wind and rain (sound familiar :D ) and today is the same then it may well be reasonably accurate. However, if we actually get a summers day, today fits the bill, then the opposite can be your experience.

As for the inbuilt sat nav? I never use it. I have a BT dongle that plugs into the USB slot and link my phone to the car so I can use Google maps. This is displayed on the big screen, along with directions on the drivers and head up display if you have one. The car is pretty good at estimating your current m/kWh so I ignore the GOM and just look at the SOC %. Then it's just mental arithmetic. Say you have 20% battery and you are averaging 3 m/kWh and your battery is like mine, 87kWh, it becomes 20 % of 87 = 17.4 x 3 = 52.2 miles range. I even get the car to do the maths by using Google, now connected by the BT dongle, by long pressing the voice control button and asking Google to do the maths. :D Now you may come back and say to me "this shouldn't be necessary" and I would completely agree with you, but unless you P ex it for a Tesla it is pretty much where most EV drivers are right now.
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