🖼 Reply to “Pictures and nothing else” thread_2020_summer

Troll attempt: 0 points

1 Like

For motor clearance to mount your motors at more angles, forward or reverse mount.

2 Likes

I was thinking this too, but I am no mechanical engineer. What is the advantage to having that idler gear?

1 Like

For urethane it seems to make some sense as you can reduce the size of the spur gear to get more clearance?

4 Likes

Yeah this is what I thought too, you either have to have the motors like how the BN M1 has it, or have really bad clearance

Also keep in mind there is only like one setup on street wheels where you can have the M1 facing the rear

3 Likes

Continuing the discussion from :framed_picture: Pictures and Nothing Else!:

@frame My best guess is that its a switch that disconnects the charge port from the outside world.
When a charger is present, it opens up the highway towards the BMS. This would be a minimum requirement feature in a commercial product if you ask me :smiley:

5 Likes

This could present a problem, as some chargers look for a battery voltage before they will turn on the juice.

2 Likes

Yeah, its a valid concern.

We use an isolated pilot signal for our chargers to turn on at work. But thats in the double digit kW range

3 Likes

MADRID

1 Like

Dc Contactor/pilot relay w/ precharge circuit?

1 Like

Looks like the Trapstar

image

What enclosure do you have on it @maxllq ?
It looks super clean

5 Likes

I got something similar coming up. :grin:

3 Likes

She’s a beast but there’s too much extra space in the enclosure. Battery is definitely her bottleneck.

2 Likes

Charger has small static pre-charge, contactor(PMU) is on battery/BMS side.
Contactor clicks->pilot signal (basically just an I/O) to charger from BMS->charger ramps up voltage.

2 Likes

You think you quoted them enough?

2 Likes

Nope :man_facepalming:

5 Likes

That’ll buff out.

10 Likes

@rafaelinmissouri, how did you manage that?

2 Likes

Did you try turning it off and then on again?

8 Likes

Nah. Jbweld it. Its fine.

2 Likes