Remy HVH 250 motors

[jonescg]

http://www.remyinc.com/docs/Remy_HVH_250_Sep09.pdf

Lightning is running one of these in their TTXGP and land speed bikes. It looks like it has the same power and power density as an Evo motor, but in a more compact arrangement. More like a UQM motor, but spins much faster.

I wonder what their price is

 

[Nuts&Volts]

Unless you are running that thing at 500V+ you aren't going to get a lot of power out of it. You can increase the cooling and running a higher current through it (>300Arms). It weighs 110lbs with casing, while the EVO weighs 57lbs with casing. I've seen on a dyno a Remy HVH put out 82kW on 400VDC and 225Adc.

http://vaxosystems.com.strawberry.arvixe.com/store/category/53-motors.aspx has some for sale. I'll take back my earlier statement, if you get the parallel wound motor and run it at 320VDC, but with 600Arms you can get 160kW out of it...ours must be a series wound motor. It takes up a very large chunk of the bike and is much more suited for a automobile.

Now you can do like MotoCyzsc and Lightning and make your own case and own frame so that it is cooled better, lighter and fits better. I would have rather ran a Evo in the first place. I believe both teams are running Rinehart Motion controllers with the Remy, but that is a guess

 

[jonescg]

Oh I would be running it at 700 V. But yeah, it's one heavy pig of a motor. I have decided to go for the AFM140 instead of the 130. I can make it fit but it does mean more battery pack up high. Still waiting on what Evo motors prefer to run at, as to whether I go for a 370 V system, or the 700 V system. Seems the motor is capable of a bit more than what the inverters can deliver.

I have had an email conversation with Larry Rhineheart, and it looks like the DC bus cannot exceed 360 V - it will tolerate 400, but not perform. So if you have a 370 V system you can reasonably expect it to hit 360 V under load. If the motors aren't delivering full power at these voltages, and can go higher, then I'll be upping the drive to 700V.

Given my experience with overpowered controllers and the ease with which they smoke motors, I'm inclined to go for a bigger motor for peace of mind. Given the controllers are $10k a pop, I don't want to blow it either!

 

[Nuts&Volts]

Yea, I believe it is very advantageous to run a HV battery pack and just limit the voltage to the motor with the controller (if needed). Say only ever to 70% duty cycle on a 600V battery pack. Allows for a 1p and low current battery pack design. But most HV controllers only have 600V IGBT modules and caps may be rated even lower.

One thing I have also seen is that the cooling on the Remy can be somewhat complicated. Also to go over 500V or something you will need to have Remy upgrade the bearings as they may arc. It takes up a lot more volume then you think it will (sides arent really smooth and flat like the EVO).