Methods and apparatus to monitor electro-mechanical braking actuator health

At least one non-transitory machine-readable medium comprising machine-readable instructions to cause at least one processor circuit to at least:

• measure, via a sensor, a brake torque generated by a brake of a braking system;
• provide a first current to a motor to actuate the brake, the first current to cause the measured brake torque to satisfy a target brake torque;
• determine a residual value based on the first current and a second current of the motor associated with a first gap between a friction material and a braking surface of the brake;
• detect a condition of the braking system based on the residual value and a difference between the second current and a third current of the motor, the third current associated with a second gap between the friction material and the braking surface;
• and
• output an indication representative of the detected condition.

A method comprising:

• measuring, via a sensor, a brake torque generated by a brake of a braking system;
• providing a first current to a motor to actuate the brake, the first current to cause the measured brake torque to satisfy a target brake torque;
• determining, by at least one processor circuit programmed by at least one instruction, a residual value based on the first current and a second current of the motor associated with a first gap between a friction material and a braking surface of the brake;
• detecting, by one or more of the at least one processor circuit, a condition of the braking system based on the residual value and a difference between the second current and a third current of the motor, the third current associated with a second gap between the friction material and the braking surface;
• and
• outputting an indication representative of the detected condition.