Boots – shoes – and leggings
Patent
1980-09-30
1983-10-25
Smith, Jerry
Boots, shoes, and leggings
188181T, 303112, 318610, 364162, B60T 800, G06G 770
Patent
active
044122918
ABSTRACT:
An airplane braking system includes a torque control circuit for control torque developed in a braked landing wheel. The torque control circuit is responsive to a torque signal from a transducer located in the torque equalizing links of the landing gear assembly. The torque signal is compared with a reference signal and passed through an integrator, a differentiator and proportional gain amplifier in the torque control circuit to provide a torque control signal. The torque control signal is applied to a brake pressure relief valve to reduce brake pressure. The torque control circuit is advantageously integrated with an antiskid circuit responsive to wheel speed to thereby preventskidding as well as excessive torque conditions. In the preferred embodiment, the output of the antiskid circuit is combined with the output of the integratorof the torque control circuit in a feedback loop such that the torque control circuit tracks are antiskid circuit output in the event of a skid to thereby prevent torque overshoot when the airplane comes out of the skid.
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patent: 3533236 (1970-10-01), Cottington
patent: 3614174 (1971-10-01), Romero
patent: 3689120 (1972-09-01), Sumiyoshi et al.
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patent: 3743361 (1973-07-01), Vieth, Jr.
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patent: 4043607 (1977-08-01), Signorelli et al.
patent: 4129202 (1978-12-01), Winters et al.
patent: 4236202 (1980-11-01), Giles et al.
Amberg Robert L.
Gaseor Thomas J.
Smith Jerry
The Boeing Company
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