The share of Heavy Commercial Road Vehicles (HCRVs) in the number of fatalities was 9.8% in the year 2020 despite constituting only 5.4% of the total number of registered vehicles in India. The staggering amount of loss of life and economic losses make Active Vehicle Safety Systems (AVSSs), which can potentially reduce road accidents and associated fatalities, necessary for road vehicles. An Antilock Brake System (ABS) is one of the AVSSs that prevents wheel lock and retains vehicle stability. Also, an electronic braking system can improve the response time during braking and improve safety. However, brake-by-wire implementation poses a higher susceptibility to faults when compared to its mechanical counterpart. A mathematical model for a dual-sensor electronic brake pedal that relates the sensor output to the brake pedal displacement considering the noise in the power source is developed. Based on this model, an algorithm that ascertains the driver's intent and identifies any faults during real-time operation is developed. Utilizing this driver braking intent, the ECU computes the desired brake chamber pressure which is realized using the brake actuators in the vehicle. Subsequently, high precision and fast response of brake actuators are significant for pneumatic pressure control in AVSSs. A three-phase two-way actuator valve is controlled for ABS application in HCRVs to achieve brake pressure regulation. Actuation of the valve is done with the help of an Output Processor, which modulates the pressure accurately with minimum switching of the on-off solenoid valves. Finally, with the help of a PID-based Actuator Controller, precise control of the actuator is achieved. The brake pedal algorithm was experimentally evaluated in a hardware setup with and without emulation of fault conditions and was found to respond accurately to the input in normal and faulty conditions with the corresponding fault flag. Moreover, Hardware-in-Loop tests on the regulator valve with the developed algorithms exhibited desired performance with visible trade-offs between the valve control accuracy and solenoid triggering. The research work also focuses on development of a mathematical model of the regulator valve for its analysis and possible redesign and development of a fault-tolerant electronic brake pedal processing algorithm.