What kind of motor is used in regenerative golf carts?

[TR7]

Hi,

I'm new here. I have a Yamaha AGV (Automated Guided Vehicle) here, which is not really more than a golf cart that has been modified for autonomic driving.
As an assigment for school (Automotive Engineering) I have to bring it back to life. It's totally trashed and hasn't been used since, like, 1995 or so.
I need to make a motor controller for it, but i'm not sure what kind of motor it uses, and it's kinda hard to see.
I know older golf carts use simple series motors, while the newer ones that are able to brake regenerative, use a different kind of motor.
I suppose it's some kind of compound motor, either a cumulative or a interpole one but i'm not sure.
Anyone familiar with the motors used in the newer golf carts? I suppose one specific kind of motor is used in all regenerative golf carts?

Thanks for the help, cheers.

[OUTL4W]

A Series wound motor was once used by all golf cart manufacturers, however, as time went on new features were developed in the golf carts which demanded a different motor. It is then when the Shunt wound motor was introduced. This electric motor is used in current golf carts that feature a Dynamic Braking / Regenerative Braking system.

Most current golf carts manufactured come standard with a Shunt wound motor. While you can not interchange a Series wound motor with a Shunt wound motor, and vise versa, these motors can easily be identified by a long sensor wire that comes out the center of the Shunt wound motor.