Help with Speed control using Cortex and US Digital Encoders

[badtkee]

Hey everyone,

I'm designing a robot and I need some help programming it. The robot has some autonomouse functions that require it to move at a certain speed. The robot has 2 encoders and is four wheel driven. How do I use the encoders to keep the robots speed constant at 3m/s? I'm using VEX's ROBOTC program to program a VEX Cortex microcontroller. It uses 4 CIM motors to drive each wheel.

Thanks for everyone's help