Recent content by ZALO

I'm working with drivetrain based on QS180 and sevcon Gen4 Size4 for about a month, if you have any questions, I will try to answer

Hello forum members. I am working on a powerful electric vehicle based on the Renault Twizy drive. I struggle with the attempt to reconfigure the original controller so that it works with the absolute minimum such as an ignition switch, direction switch and throttle. Has anyone run such a set...

This motor after a few modifications gives an amazing effect. I put this modified QS138 90H together on a dynamometer with the KTM SXF 250 and it achieved twice the torque! https://youtu.be/pT9Nwf6k7kI

LV version motors have too low inductance and it is even impossible to control the current

I used this kit and I do not recommend the Emrax LV motor version

Total 1:7

Ok, the project is finished and it fully met my expectations. Finally put the QS 138 90H motor. A few photos of the final effect:

Thanks, I wanted the drive to be as quiet as possible, the belt transmission would be properly built-in. This is where the highest speed occurs and the chain would generate unbearable noise. I hope that I will not have to change this belt often.

I decided to use a battery with 24s16p configuration, this arrangement of cells will fit perfectly in the frame space and additionally welding of the packets will be regular. The energy stored in the battery should be enough for a moment of fun on the track, while the entire motorcycle will be...

After all, the range will not depend on the number of cells in the series, but on the total energy stored in the battery measured in kWh. I want to power the motor with a higher voltage to get a higher speed, because I use any gear anyway. I care about the greatest possible moment without...

Specification Size 4: Nominal Supply Voltage - 80V Maximum Supply Voltage - 116V Peak Current - 350A Boost Current - 420A Continuous Current - 140A Specification QS 138: Rated Power: 3000W Rated Voltage: 72V as default No-load rpm: 4400rpm Max Torque: approx 56N.m Peak Battery Current: 120A...

I'm working on a kawasaki kxf 250 cross motorcycle, I decided on the qs 138 70H motor. I plan to use the sevcon gen 4 size 4 controller. I have Sony VTC5A lithium-ion cells at my disposal. What package configuration is best to do? How many cells would be optimal?

I usually drive off public roads. If I were to treat it as a motorcycle, I would have to homologation certificate.

I use hexagonal structure holders:

@John in Cr, weight around 60kg, the range of this type of motorcycle is 50-200KM, of course it depends on how much I use the throttle and hold the front wheel up :D @Hickbeard, I design another construction with a tubular frame, with a centrally located motor, for better weight distribution...