Alpha Feedback - Mercedes B 250E

[Jason-ABRP]

To verify and improve our models we need your feedback.  There's many ways we could use help if you actually own one:

• Drive a plan and compare it to the actual battery used.
• Drive a plan with the browser active, and update your actual battery percentage in the browser.
• Contribute data via OBD or other methods.

The best way to improve the data is to provide data directly from the car.  Connecting your car not only improves the models, but allows you to follow up directly in the car while driving! We have several ways of doing that, but we need your help to figure out what will work with your car:

• An OBD reader can be used in concert with a custom app like LeafSpy, or a PID list and Torque Pro.
• If your manufacturer has an API to access data from the car we can set up access to that API, like we do for Tesla

If you're familiar with either of these, contact me at jason@abetterrouteplanner.com and I'll help figure out what we need to do to connect your car!

Thanks for providing feedback!

[Jarkko]

Hi Jason,

 

Thank you for the model! 

 

Initial model seems to match smaller roads well (speed limits mostly 80 or 100 kmph):

I planned route to summer cottage. It's pretty close to 100% SOC when driven about 5 kmph over speed limits in perfect and quiet road conditions.

Model gives 106%, but it is also estimating the length of the trip about 5% higher than Google (same route on map) - I have to double check the true length next time I'll go there :)

 

For a temperature accurate verification, it will take some time - most of my drivings are too short trips to be usable for verification :-/

 

With Best Regards,

 Jarkko

[Paul Harrington]

Hi Jason - I added a recent route through rural Wales on small largely rural roads with plenty of hills. I charged to 85% at each of my stops. Better Routeplanner was very comparable for my actual journey. Thank you for adding the B250e to your site.

[Jason-ABRP]

5 hours ago, Paul Harrington said:

Hi Jason - I added a recent route through rural Wales on small largely rural roads with plenty of hills. I charged to 85% at each of my stops. Better Routeplanner was very comparable for my actual journey. Thank you for adding the B250e to your site.

Glad to hear it worked well for you!

[sifo]

I enjoy this planner very much.

My car has optional extra, where I can charge to higher capacity than 100%, but I'm unable to set trip start capacity to more than 100%. Would it be possible to extend limits for capacity to 116% please?

Capacity/Vehicle UI SOC/Real battery SOC

28kWh/100%/77% (Normal operation)

32.72kWh/116.86%/90% (When charged with extra capacity enabled)

36.36kWh/129.86%/100% (Not possible to charge fully)

[Jason-ABRP]

12 hours ago, sifo said:

I enjoy this planner very much.

My car has optional extra, where I can charge to higher capacity than 100%, but I'm unable to set trip start capacity to more than 100%. Would it be possible to extend limits for capacity to 116% please?

Capacity/Vehicle UI SOC/Real battery SOC

28kWh/100%/77% (Normal operation)

32.72kWh/116.86%/90% (When charged with extra capacity enabled)

36.36kWh/129.86%/100% (Not possible to charge fully)

Hmm, we'll have to think about how to enable this function without allowing odd behavior in other cars (like starting from the top of a hill in 100% and reaching the bottom with 105%).

[Jarkko]

Is the weather/rain -correction car model specific? Is there any reason why it should be car specific?

Normally ABRP gives slightly pessimistic results for me, wet conditions changes it to optimistic side. This week I had a 160 km round trip in light rain (+4 deg C, wind 4 m/s), and the ABRP estimate was still in optimistic side even I set the rain to heavy rain (-20%). 

ABR estimate 236 Wh/km
Car estimate: 270 Wh/km

(here is the plannin link: https://abetterrouteplanner.com/?plan_uuid=b19f39f9-7108-4c95-ace7-569521d3d7d3 - I was using the charge plus -feature, so I started at  SOC 115%, so I did not run out of electrons).

This is just one, possibly inaccurate sample, so I would not request changes to model yet. Can other drivers confirm this?

[Egil Langseth]

On 10/8/2019 at 1:33 AM, Jason (ABRP) said:

Hmm, we'll have to think about how to enable this function without allowing odd behavior in other cars (like starting from the top of a hill in 100% and reaching the bottom with 105%).

This is probably a B250e, the same as mine!

 

Just added Premium and CarPlay to my car, thank you for a great app!

Can ABRP log into my B250e to update both SOC and current consumption to get more accurate SOC for arrival?

 

Best regards from Norway 

Edited February 24, 2021 by Egil Langseth
Error

[Jarkko]

Can you read the SOC info with Android device? That would be interesting. I have tried to implement this with OVMS, but OBD-connector does not publish SOC data (momentary and trip consumption , and range there is, but no SOC).

Mercedes cloud service might be also one change, but I have not studied it much as cars from year 2015 were excluded from "Bring Your own Car" -thingy. 

Anyways, I am sorry I cannot help you, but please post here if you find a solution.

[Mike Iimura]

On 2/25/2021 at 9:04 AM, Jarkko said:

Can you read the SOC info with Android device? That would be interesting. I have tried to implement this with OVMS, but OBD-connector does not publish SOC data (momentary and trip consumption , and range there is, but no SOC).

Mercedes cloud service might be also one change, but I have not studied it much as cars from year 2015 were excluded from "Bring Your own Car" -thingy. 

Anyways, I am sorry I cannot help you, but please post here if you find a solution.

If you have OVMS and it cannot see the SOC, you must not be connected to the Tesla CAN bus. I am planning to create an OVMS branch for the Tesla powered RAV4 EV and plan to connect to the main Toyota CAN and the Tesla CAN buses. I saw the ABRP plugin for OVMS and hope to make the OVMS send live data to ABRP.

[Jarkko]

5 hours ago, Mike Iimura said:

If you have OVMS and it cannot see the SOC, you must not be connected to the Tesla CAN bus. I am planning to create an OVMS branch for the Tesla powered RAV4 EV and plan to connect to the main Toyota CAN and the Tesla CAN buses. I saw the ABRP plugin for OVMS and hope to make the OVMS send live data to ABRP.

Thanks for input Mike! 

I started the development for MB 250e vehicle module for OVMS. It just passively listening can bus in the OBD-connector, and I was never able to decode SOC form there. Range (and basically all other info that is available in the instrument cluster) is available, but no SOC. 

So further OVMS vehicle module development is needed here. Options are:

1. I have done some tries with polling (PIDs), but so far I have failed. This should be doable, but I have missed something. If you know any third party tools that can get any info via OBD -connector from this car, it would be nice to know. Another approach could be recording Daimler (Xentry) tool session. 
2. Other can busses. So far I had considered only the bus that goes to the remote/cloud/GSM module. The SOC (and preheat) is available via MB mobile app, so this can definitely has the info. I have just been too lazy to make the connection there.
   The Tesla-bus (Mike mentioned it above) would be also interesting. Communication there is probably the same as in Model S, so internet should be full of info   I have to check where the bus is physically available.

In order to keep this thread more on ABRB scope, any OVMS/MB250e comments are welcome also on OVMS forum: https://www.openvehicles.com/node/2413 .

For some people this service might work also towards ABRB: https://www.tronity.io/?lang=en . I tried it quickly some time ago, but it failed to connect to MB. Later I have seen forum posts (goingelectric.de) where people say they managed to get it working. This might be the easiest way of to boost the ABRB model accuracy.  

[bicyclemower]

I have a 2013 RAV4EV with Chademo. Using Leaf 30kW as proxy, getting some really weird/bad results from ABRP planning a trip this weekend from N. Andover, MA to Rumney, NH with 500lb of gear. I've done a longer trip to VT but due to Chademo station problems, had to spend a lot of time at J1772 plugs instead.

Experience & intuition say I should be fine with 1 Chademo stop & maybe a J1772 within 30 miles of destination. 100mi, 1:45 by gas & I expect 2:05 if just Chademo. ABRP can't forecast that, yet. Looking forward to being able to choose RAV4EV as vehicle.