Brake apply with improved reaction

A brake apply control system comprising:

• a mechanical brake apply portion including a reaction member, a mechanical input member and reaction means responsive to said mechanical input member to mechanically apply a brake force resulting in a mechanical input force on said reaction member and a feedback force on said mechanical input member;
• a hydraulic brake apply portion for providing a hydraulic apply signal to a brake apply piston operatively connected with said mechanical input member and operable in response to the brake apply signal to cause a reduction in the mechanical input force on said reaction member and said feedback force;
• a hydraulic balancing means responsive to the apply signal for imposing a balanced force on said reaction member substantially equal to the reduction thereon caused by said apply signal, and said reaction member imposing a feedback force on said mechanical input member in response to the balanced force;
• said reaction means comprising;
• a cam member disposed for axial movement in a fixed housing;
• roller members operatively associated with said cam member for enforcing a reaction force on the mechanical input member;
• and,
• said hydraulic balancing means includes a plurality of hydraulically actuated piston means disposed adjacent to said cam member for imposing an axial force on said cam member in response to said hydraulic apply signal.