Claims
- 1. In a method of detecting initial skidding and applying brake pressure for braking of a wheel of an aircraft during landing of the aircraft, the aircraft having a wheel brake for applying brake pressure to said wheel, the method including the steps of providing a pressure bias modulator integrator for controlling a maximum allowable brake pressure responsive to a brake pressure signal and a wheel velocity error signal to provide an anti-skid control signal; and generating a command brake pressure signal in response to a deceleration command and said anti-skid control signal, the improvement in the method comprising the step of:initializing the pressure bias modulator integrator with a predetermined threshold brake pressure plus a predetermined constant pressure value, when the brake pressure reaches a predetermined threshold brake pressure.
- 2. The method of claim 1, further comprising the step of initializing the pressure bias modulator integrator to the value of a measured brake pressure when the wheel velocity error signal becomes greater than a velocity error threshold.
- 3. In a method of detecting initial skidding and applying brake torque for braking of a wheel of an aircraft during landing of the aircraft, the aircraft having a wheel brake for applying brake torque to said wheel, the method including the steps of providing a pressure bias modulator integrator for controlling a maximum allowable brake torque responsive to a brake torque signal and a wheel velocity error signal to provide an anti-skid control signal; and generating a command brake torque signal in response to a deceleration command and said anti-skid control signal, the improvement in the method comprising the step of:initializing the pressure bias modulator integrator with a predetermined threshold brake torque plus a predetermined constant torque value, when the brake torque reaches a predetermined threshold brake torque.
- 4. The method of claim 3, further comprising the step of initializing the pressure bias modulator integrator to the value of a measured brake torque when the wheel velocity error signal becomes greater than a velocity error threshold.
RELATED APPLICATIONS
This is a continuation of U.S. Ser. No. 08/850,680, filed May 2, 1997 now U.S. Pat. No. 6,132,016.
US Referenced Citations (27)
Foreign Referenced Citations (9)
Number |
Date |
Country |
42 43 245 A1 |
Jun 1994 |
DE |
231829 A3 |
Aug 1987 |
EP |
378810 A1 |
Jul 1990 |
EP |
386939 A1 |
Sep 1990 |
EP |
426959 A3 |
May 1991 |
EP |
445575 A3 |
Sep 1991 |
EP |
575936 A1 |
Dec 1993 |
EP |
2637231 A3 |
Apr 1990 |
FR |
2 292 195 A |
Feb 1996 |
GB |
Non-Patent Literature Citations (1)
Entry |
Motohiro Igarashi, et al. Digital Brake Control System for Mag-lev Trains, presented at S'Tech '93 (International Conference on Speedup Technology for Railway and MAGLEV Vehicles), Nov. 1993, Yokohama, Japan. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/850680 |
May 1997 |
US |
Child |
09/591093 |
|
US |