Abstract: A real-time simulation system for testing an ABS controller. The simulation system receives car dynamic data from a computer and transmits the car dynamic data to the ABS controller through a controller conversion circuit. The simulation system then receives control signals from the ABS controller and feeds the control signals back to the computer through the controller conversion circuit so as to calculate, analyze, and display results on the monitor of the computer.

Abstract: A fuzzy controller for Anti-Skid Brake System which utilizes fuzzy rules to avoid skidding and spinning of a vehicle during braking.

Abstract: An anti-skid brake control system (ABS) utilizing a phase-locked loop (PLL) for controlling the brake mechanism of a landing aircraft. The PLL control system tracks the angular velocity of the nose wheel of the aircraft as a reference signal for locking the angular velocity of the main wheel of the aircraft such that the wheel slip is maintained at a constant value. The PLL control system has a phase detector which takes the signals from both wheel speed detectors and is capable of generating accordingly a frequency error signal and a phase error signal. A circuit will generate an electrical signal, the magnitude of the electrical signal being in accordance with the magnitude of the frequency error signal and the magnitude of the phase error signal. A driving member will drive in accordance with the magnitude of the electrical signal the brake mechanism connected to the main wheel to apply a brake force thereto.