Max Speed Optimization

[Flow]

Description:  I have noticed that ABRP only reduces the maximum cruising speed (checkbox slower if needed) when e.g. the nearest charging station is too far away. However, not generally to shorten the total travel time. Many long charging stops due to high cruising speeds extend the total travel time. Mostly I get the optimal total travel time, if I manually set the maximum speed to between 100-120 kph.

Use Case: I change the maximum speed in every planning now. Unfortunately, I have to try several values (95, 100, 110, 120, 130, 140, 150, 160 kph) and have to recalculate the route to get the best travel time. Sometimes I use this tool: https://ecalc.ch/evcalc.php as a further help to find the optimal speed.

It would be nice if you could implement the speed optimization. Thx.

[didi]

I just signed up to the forum to report exactly the same.

ABRP is a fantastic tool, especially for somebody trying to learn as much as possible before owning an EV. This is the one feature I missed most so far.

I was quite sure that in the past I've seen route proposals with suggested reduced speed where more charging stops would have been possible instead. Which would be what the initial poster proposes. Right now however I can't find an example, maybe the behaviour of ABRP in that regard changed.

Here's an example where reducing the max speed of 150 km/h (default for selected car) to 140 km/h reduces travel time by 14 minutes (by eliminating a needed second charging stop, which even allows for a shorter route):

150 km/h: https://abetterrouteplanner.com/?plan_uuid=dd5882f5-82e0-4775-92f7-d44ba6009521
140 km/h: https://abetterrouteplanner.com/?plan_uuid=e8cb4497-74ce-4a6e-9e4c-7463cda73295

 

Btw. I think this optimization is closely related to personal preferences: some may prefer fewer, but longer stops (good for a "real" break with e.g. a Restaurant visit), others may prefer more and shorter stops. That could be a setting worth adding.