Vehicular brake system operable in dual modes

A system for use in a vehicle with a brake pedal and a brake circuit, comprising:

• a master cylinder assembly configured to pressurize fluid therein in response to movement of said brake pedal;
• a sensor assembly configured to generate a pedal position signal indicative of position of said brake pedal;
• an electronic control unit configured to (i) generate a brake request signal in response to generation of said pedal position signal, and (ii) generate a selector control signal;
• a selector valve assembly operable in a first mode and a second mode, said selector valve assembly being moved from said first mode to said second mode in response to generation of said selector control signal;
• a pedal feel simulator (i) in fluid communication with said master cylinder when said selector valve assembly is positioned in said first mode, and (ii) isolated from fluid communication with said master cylinder when said selector valve assembly is positioned in said second mode;
• a booster actuator configured to generate force in response to generation of said brake request signal;
• and
• a booster assembly configured to pressurize fluid therein in response to generation of force by said booster actuator,
• wherein said master cylinder assembly is (i) isolated from fluid communication with said brake circuit when said selector valve assembly is positioned in said first mode, and (ii) in fluid communication with said brake circuit when said selector valve assembly is positioned in said second mode, and
• wherein:
• said selector valve assembly includes a valve component having a housing and a valve member within said housing,
• said housing defines a first selector valve fluid inlet, a second selector valve fluid inlet, and a selector valve fluid outlet, and
• said valve member defines therein a fluid passage,
• said first selector valve fluid inlet and said second selector valve fluid inlet are in fluid communication with said selector valve fluid outlet through said fluid passage when said selector valve assembly is positioned in said first mode, and
• said first selector valve fluid inlet and said second selector valve fluid inlet are isolated from said selector valve fluid outlet when said selector valve assembly is positioned in said first mode.