New motor set up for my mini EV

2112 Views 4 Replies 3 Participants Last post by brian_, Apr 2, 2020

Bgt2u48

Discussion Starter · Apr 1, 2020 (Edited)

Okay.....after a lot of research, l have decided to scrap my 2 Boma 48v 1800w motor setup, and go with a Motenergy ME1202 motor, set up at 72v, with either a Kelly, or Sevcon Gen 4 controller. I would have the one motor driving both rear wheels via a single shaft. This motor puts out a maximum of 60ft lbs. of torque, so l should get very quick acceleration, when the "urge" arises. I considered the Motenergy ME1114 motor, but think l am going with the ME1202, because it seems to be water resistant. It is however, meant to be mounted to a transaxle, so l will have to modify a golf cart input shaft, and do it that way. I of course will need to fabricate a wheelie bar to keep the front end down. I love quick acceleration, l also cruise around off road, ride in the forest, and want a top speed of 35 mph maximum. Do you think this motor will work for me?
https://www.electricmotorsport.com/me1202-brushless-motor-24-72v-5000rpm-10-kw-cont-24-kw-pk.html
https://www.electricmotorsport.com/me1114-brushless-motor-24-72v-5000rpm-10-kw-cont-24-kw-pk.html

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brian_

· #2 · Apr 1, 2020

Bgt2u48 said:
I of course will need to fabricate a wheelie bar to keep the front end down.

No, you don't need a wheelie bar - you just need to set the controller's current limit to a level which limits the torque to just short of lifting the front wheels... if that is even a realistic possibility.

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SecondLife-EVBatteries

· #3 · Apr 2, 2020

Sounds like a great project.

Another motor to look into would be a Meiden Y61 60kW EV Motor. We already putting one into a jetski project (half built) and thinking of using one also for a small car project, and with the gearbox they can come attached to we think it would produce 198Nm torque. You might need a wheelie bar with that i suspect.

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brian_

· #4 · Apr 2, 2020

SecondLife-EVBatteries said:
Another motor to look into would be a Meiden Y61 60kW EV Motor. We already putting one into a jetski project (half built) and thinking of using one also for a small car project, and with the gearbox they can come attached to we think it would produce 198Nm torque. You might need a wheelie bar with that i suspect.

Do you have a link to a description with full specifications of this motor? In a quick search I found the 60 kW Meiden motor at Second Life EV Batteries, but it contains the nonsensical description item of "3 Phase asynchronous perm magnet brushless", so nothing in the listing is credible (an asynchronous motor doesn't have permanent magnets). The manufacturer - Midensha Corporation - has a Electric Vehicle Drive Systems page which mentions the motors used in the Mitsubishi i-MiEV and Outlander PHEV and a gearbox, but the "Y61" may be neither of these motors, it may be a different gearbox, and there are no detailed specs anyway.

Since 198 Nm and 60 kW corresponds to about 2900 rpm, that looks like the torque output of the motor itself, not a reduction gearbox on that motor. 197 Nm is the peak output of the i-MiEV's 49 kW motor; the i-MiEV gearbox multiplies that by about 7.

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brian_

· #5 · Apr 2, 2020

SecondLife-EVBatteries said:
Another motor to look into would be a Meiden Y61 60kW EV Motor.
...
...with the gearbox they can come attached to we think it would produce 198Nm torque. You might need a wheelie bar with that i suspect.

After some more searching, from a brochure from Mitsubishi's distributor from Hong Kong, it appears that "Y61" is Mitsubishi's code for the motor (or perhaps motor with transaxle) used at the rear of the Outlander PHEV. The motor torque output is 195 Nm.

The Outlander (and i-MiEV) motors are synchronous permanent magnet motors, not asynchronous (induction).

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