Systems and methods for clamping force estimation in electromechanical brake systems
AssigneeGoodrich Corporation
InventorSameep Singh
Life of this patent
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Abstract
An electromechanical brake system may include an electromechanical actuator with a servo motor. A current control is electronically coupled to the servo motor. A resolver is configured to detect an angular velocity and an angular position of the servo motor. A converter may be configured to convert the angular velocity into a linear velocity and the angular position into a linear position. An intelligent observer may also be configured to estimate a load force of the electromechanical actuator based on the linear position and the linear velocity.
Claims20
An electromechanical brake system, comprising:
- an electromechanical actuator comprising a servo motor,
- a current control electronically coupled to the servo motor;
- a resolver configured to detect an angular velocity and an angular position of the servo motor;
- a converter configured to convert the angular velocity into a linear velocity and the angular position into a linear position;
- and
- an intelligent observer configured to estimate a load force of the electromechanical actuator based on the linear position and the linear velocity.
A method of estimating a load force of an electromechanical brake actuator, comprising:
- generating a set of rules to estimate the load force based on a plurality of linear velocities and a plurality of linear positions of the electromechanical brake actuator;
- measuring a linear velocity and a linear position of the electromechanical brake actuator to yield a measured linear position and a measured linear velocity;
- and
- applying the set of rules to the measured linear velocity and the measured linear position to estimate the load force.
An aircraft brake, comprising:
- an electromechanical actuator comprising a servo motor, a gear train coupled to the servo motor, and a ball screw coupled to the gear train, wherein the ball screw is configured to translate linearly in response to a rotation of the servo motor;
- a current control electronically coupled to the servo motor, wherein a current sensor is configured to measure a feedback current through the servo motor with the feedback current used to generate an input for the current control;
- a resolver configured to detect an angular velocity and an angular position of the servo motor;
- and
- an intelligent observer configured to estimate a load force of the electromechanical actuator based on the angular position and the angular velocity.
Dependencies are inferred from the claim text.