Quote:
Originally Posted by JesseK
To all you speed mongers out there, good luck  |
In the past we have always started our design at max speed and worked from there.
I am not sure if top speed is the correct way to approach this problem. It seems that the CIM's will provide more than enough power to spin the wheels.
If we determine the amount of torque needed to spin the wheels and design the gear ratio so that max torque at the 40A level is about the same as the amount of torque needed to spin the wheels, then it would be harder for the driver to cause wheelspin. In this example the driver would have to move the joysticks to full power to cause the wheels to spin.
I think this is the lesson we were supposed to learn from the demonstration that Dean and Woody did on the playing field.
If you design for a low topspeed, there will be a lot of torque available with just a small movement of the joystick and it will be very easy for the driver to cause the wheels to spin.
Am I way out in left field here?