DIY Electric Car Forums banner

Planning Mercedes Sprinter y.2000+ conversion

6109 Views 8 Replies 3 Participants Last post by  Sprinter
Hello, everyone!

Donor Vehicles: Mercedes Sprinter Medium & Long Based Vehicles carrying 17 people - I guess total medium weight about 3500kg-4000kg(have to check). Relief: Hills, lots of them :( high% upward angle.

-Skill level with auto mechanics and fabrication:
-Little (Economist by profession)

-What level of performance you are hoping to get:
-Acceleration-base model or better;
-1)Urban Model: 70-75km/h, 20-25km range(which take about 40-45minutes due to traffic) with 40-60 minutes brake in a 8 hour working environment.
-2)Interurban Model:95-100km/h; 2 trips - 100km range with 3-5 hours brake time between them

-How much money you are willing to put into your project:
-As much as it is needed.
if possible to get separate components cost like batteries, controller, charger and so on.

-What parts you've already considered, if any:

I would like to consider well separated answers between these 2 models: Urban & Interurban.

Main Question: IS it possible and at what cost?

P.S. Need only cost of parts (preferably some EU/Russian/Chinese Manufacturers)

The standard gasoline engine models have a max. 243lbs*ft torque (330 N*m)
max power ranges: 65kw to 105kw
See less See more
1 - 5 of 9 Posts
Why 2 different models/designs?

Do you need 2 separate vans for different purposes?
-Yes, 2 different vans.

That weight looks on the heavy side. Maybe 3500kg gross laiden weight. Probably closer to 1500kg empty.
- GLW of 3500kg in the Interurban model will always be reached. It is a passenger van, so I want to build the vans with "reserve". It should be 100% reliable, service disruptions won't be tolerated, as I will be the first who inserts EV in the public transportation. I can do calculations, so if you could help me with the formula's (last time I did physics was in high school).

Have you got a set budget or a bottomless pit of cash ready to throw at this!?
-Well, I thought of hiring some polytechnic professors, to design the controller, dc-dc converter, charger... in such a case I'll do some cost cutting to the non-battery related components, motor not Included. Overall 20k euro's budget per van.

I'm going to take a stab in the dark and say 400-450wh/ mile.
-Same idea here, does regen help a lot (AC system)? The roads are 50/50% hills.

One last question, seen the budget, what are the most reliable battery distributors or manufacturers?

P.S. Thanks for help Mike!
See less See more
Then I'll start with the Urban Model.

So if I got it right the Test looks like this in coast down and viceversa.
110-100 - *seconds
100-90 - *seconds
90-80 - *seconds
80-70 - *seconds
70-60 - *seconds
60-50 - *seconds
50-40 - *seconds
40-30 - *seconds
30-20 - *seconds
20-10 - *seconds
10-0 - *seconds

What about shifting when going 0 - 100km/h? Is it taken in consideration?
See less See more
Republic of Moldova.

So i come with more numbers. 140km at most during a day. 7 trips by 20km, with 40 minutes break between them. I saw there are chargers capable of 8kwh output. so the battery pack should provide a 100km range.

The question is how much w/km usage... Is it correct to state that if the mass doubles it will use roughly twice as much watts? (guess not).

Any ideas how I can calculate?

Thanks again, Mike.
I've read all those threads. The conclusion is you can't (I mean real usage), wright?
1 - 5 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.