Steering Control Apparatus for a Vehicle Air Brake System and Methods Therefor

A steering control apparatus is provided for a vehicle train having a tractor towing a trailer. The steering control apparatus comprises a steering-angle position sensor arranged to provide a sensor output signal indicative of steering angle of steering wheels of the tractor. The steering control apparatus also comprises a controller arranged to (i) monitor the sensor output signal of the steering-angle position sensor, and (ii) transmit a signal to apply a differential in brake pressure on one side of opposite wheel ends of the trailer. The applied differential in brake pressure on the one side of the wheel ends of the trailer varies as a non-linear function of the sensor output signal indicative of steering angle of steering wheels of the tractor.