Back to results
US 6,402,259 B2Granted
Electromechanical braking system with power distribution and redundancy
AssigneeGoodrich Corporation
InventorsLawrence F. Corio, Robert L. Brundrett, Mihai Ralea, Rollin W. Brown
Life of this patent
Estimating the term…
Abstract
An electromechanical braking system utilizes redundancy features to provide safe and reliable braking. The braking system is configured to operate on power provided by multiple power sources. Different modes of braking are available based on whether a failure has occurred in one or more power sources. Additionally, system redundancy allows for failure in one or more primary components without total loss of braking capacity. Proportional braking is provided even in an emergency braking mode.
Claims16
An electromechanical braking system, comprising:
- at least one electromechanical brake actuator for directly converting an electrical drive control signal into mechanical energy to effect a braking torque on a wheel of a vehicle;
- and
- a plurality of brake controllers for providing electrical drive control signals to the at least one electromechanical brake actuator in response to an input brake command signal to effect the braking torque, the plurality of brake controllers being configured to function redundantly so as to provide the drive control signals to effect the braking torque even in the event one of the plurality of brake controllers becomes inoperative,
- wherein substantially full braking torque is maintained by temporarily overdriving individual actuator motors in the event one of the plurality of brake controllers becomes inoperative.
1 more element
An electromechanical braking system, comprising:
- a plurality of brake actuators for directly converting an electrical drive control signal into mechanical energy to effect a braking torque on wheels of a vehicle;
- a plurality of electromechanical actuater controllers (EMACs) for providing electrical drive control of the brake actuator in response to brake clamp force command signals;
- and
- at least one brake control unit (BSCU) for converting an input brake command signal into the brake clamp force command signals which are provided to the EMACs,
- wherein at least two of the plurality of EMACs are configured to function redundantly in providing drive control to the brake actuators in response to the brake clamp force command signals, and
- the system includes a plurality of BSCUs, and at least two of the BSCUs function redundantly in providing brake clamp force command signals to the EMACs.
3 more elements
An electromechanical braking system, comprising:
- a plurality of brake actuators for directly converting an electrical drive control signal into mechanical energy to effect a braking torque on wheels of a vehicle;
- a plurality of electromechanical actuator controllers (EMACs) for providing electrical drive control of the brake actuators in response to brake clamp force command signals;
- and
- at least one brake control unit (BSCU) for converting an input brake command signal into the brake clamp force command signals which are provided to the EMACs,
- wherein at least two of the plurality of EMACs are configured to function redundantly in providing drive control to the brake actuators in response to the brake clamp force command signals,
- in an event one of the plurality of EMACs becomes inoperative braking torque still is effected on the wheels of the vehicle by virtue of another of the plurality of EMACs and the plurality of brake actuators, and
- each of the plurality of EMACs provide drive control to a corresponding different set of the brake actuators on a given wheel of the vehicle.
4 more elements
An electromechanical braking system, comprising:
- a plurality of brake actuators for effecting a braking torque on wheels of a vehicle;
- at least one electromechanical actuator controller (EMAC) for providing drive control of the brake actuators in response to brake clamp force and command signals;
- and
- a plurality of brake control units (BSCUs) for converting an input brake command signal into the brake clamp force command signals which are provided to the at least one EMAC,
- wherein at least two of the, plurality of BSCUs are configured to function redundantly in providing the brake clamp force command signals to the at least one EMAC in response to the input brake command signal.
2 more elements
Dependencies are inferred from the claim text.