Decentralized electric brake system
First Claim
1. An electric aircraft brake control system, comprising:
- a plurality of wheel and brake assemblies, each assembly having a wheel, wheel speed transducer, brake assembly, and a brake actuator;
pairs of electromechanical control units uniquely associated with and connected to certain actuator controllers of said wheel and brake assemblies, said actuator controllers having antiskid systems as a part thereof connected to specific actuators of associated wheel and brake assemblies;
said actuator controllers configured independently of each other, such that a failure of any one or more controllers allows the remaining controllers to continue to operate unimpeded with antiskid capability such that the aircraft brake control system experiences only the partial loss of functionality associated with the failed controller or controllers to thereby ensure aircraft dispatchability; and
at least two brake data concentrators receiving data corresponding to various aircraft operational parameters, including brake pedal position, and providing operational signals to said electromechanical control units as a function thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric aircraft brake control system has a plurality of wheel and brake assemblies, each having a wheel, wheel speed transducer, brake assembly and a brake actuator. Electromechanical control units are uniquely associated with and connected to certain of the wheel and brake assemblies, and each of the electromechanical control units is provided with an antiskid system as an integral portion thereof. Brake data concentrators are provided for receiving data corresponding to various aircraft operational parameters, including brake pedal position, and provide operational signals to the electromechanical control unit as a function thereof. A controller for emergency and park braking is connected to the electromechanical actuator controllers through one of the brake data concentrators to effect emergency braking action on the brake assemblies, such emergency braking action having incident antiskid control. The system allows for a redundency in brake control circuitry and operation, which increases the dispatchability of an associated aircraft by ensuring continued effective operation of the aircraft even in view of a failure of one of the redundant circuits or systems. A reduction in weight is also achieve by reducing lengthy cable runs.
25 Citations
16 Claims
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1. An electric aircraft brake control system, comprising:
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a plurality of wheel and brake assemblies, each assembly having a wheel, wheel speed transducer, brake assembly, and a brake actuator; pairs of electromechanical control units uniquely associated with and connected to certain actuator controllers of said wheel and brake assemblies, said actuator controllers having antiskid systems as a part thereof connected to specific actuators of associated wheel and brake assemblies; said actuator controllers configured independently of each other, such that a failure of any one or more controllers allows the remaining controllers to continue to operate unimpeded with antiskid capability such that the aircraft brake control system experiences only the partial loss of functionality associated with the failed controller or controllers to thereby ensure aircraft dispatchability; and at least two brake data concentrators receiving data corresponding to various aircraft operational parameters, including brake pedal position, and providing operational signals to said electromechanical control units as a function thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electric aircraft brake control system, comprising:
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a plurality of wheel and brake assemblies, each assembly having a wheel, wheel speed transducer, brake assembly, and a brake actuator; electromechanical control units uniquely associated with and connected to certain actuator controllers of said wheel and brake assemblies, said actuator controllers having antiskid systems as a part thereof connected to specific actuators of associated wheel and brake assemblies such that the failure of any control unit results in only the partial loss of functionality for the brake control system associated with the failed control unit; first and second brake data concentrators receiving data corresponding to various aircraft operational parameters, including brake pedal position, and providing operational signals to said electromechanical control units as a function thereof; and a controller for emergency and park braking connected to said electromechanical actuator controllers through one of said brake data concentrators to effect emergency braking action on said brake assemblies, with antiskid control. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification