Model 1220CAN Controller.
Electric Steering Controller for Brushed PM Motor
The Curtis Model 1220 controller is designed to drive a brushed permanent magnet motor for electric power steering (EPS). The 1220 performs as the steering system controller, interpreting the steering command input and wheel position feedback, then driving the steering motor to move the steered wheel(s) to the desired position.
The steering motor must be speed reduced to get the high torque required to rotate the drive wheel. Typically, this is done with a gearbox around 50:1 and a chain or gear with an additional reduction of around 4:1. The steering command comes either from a linear potentiometer or an analog voltage sensor. The wheel position feedback comes either from a linear potentiometer, an analog voltage sensor, or an encoder with a home switch.
Specifications are subject to change without notice.