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US 6,422,659 B1Granted
Estimated electric caliper clamp force based upon actuator motor position
AssigneeDelphi Technologies, Inc.
InventorRobert John Disser
Life of this patent
Estimating the term…
Abstract
A method and device for controlling an actuator in response to an input signal is provided. The device detects actuator position, calculates a force applied to the actuator as a function of the detected position using a predetermined formula, and responsively produces a force feedback signal. The device receives the input signal and the force feedback signal and responsively delivers to the actuator a control signal.
Claims20
A controller for controlling an actuator in response to an input signal, comprising:
- sensing means for detecting a position of the actuator, calculating a force applied to the actuator as a function of the detected position using a predetermined formula, and responsively producing a force feedback signal;
- and,
- a control block adapted to receive the input signal and the force feedback signal, detect an operating condition of the input signal, and responsively deliver to the actuator a control signal, wherein the control signal is a small signal control if the operating condition is equal to a small signal mode and the control signal is a saturation control signal if the operating condition is equal to a saturated mode.
A controller for controlling an actuator in response to an input signal, comprising:
- sensing means for detecting a position of the actuator, calculating a force applied to the actuator as a function of the detected position using a predetermined formula, and responsively producing a force feedback signal;
- a first control block for receiving the input signal, detecting an operating condition of the input signal, and responsively producing an operating condition signal, wherein the operating condition signal has a first value if the operating condition of the input signal is in a small signal mode and a second value if the operating condition of the input signal is in a saturated mode;
- and,
- a second control block having a small signal portion and a saturation portion, the second control block adapted to receive the input signal, the force feedback signal and the operating condition signal and responsively deliver to the actuator a control signal, the small signal portion and the saturation portion adapted to produce a small signal control signal and a saturation control signal, respectively, as a function of the input signal, wherein the control signal is equal to the small signal control signal if the operating condition signal is equal to the first value and is equal to the saturation control signal if the operation condition signal is equal to the second value.
1 more element
A controller for controlling a brake caliper for a brake system of a motor vehicle in response to an input signal, comprising:
- sensing means for detecting a position of the actuator, calculating a force applied to the actuator as a function of the detected position using a predetermined formula, and responsively producing a force feedback signal;
- a first control block for receiving the input signal, detecting an operating condition of the input signal, and responsively producing an operating condition signal, wherein the operating condition signal has a first value if the operating condition of the input signal is in a small signal mode and a second value if the operating condition of the input signal is in a saturated mode;
- and,
- a second control block having a small signal portion and a saturation portion, the second control block adapted to receive the input signal, the force feedback signal and the operating condition signal and responsively deliver to the brake caliper a control signal, the small signal portion and the saturation portion adapted to produce a small signal control signal and a saturation control signal, respectively, as a function of the input signal, wherein the control signal is equal to the small signal control signal if the operating condition signal is equal to the first value and is equal to the saturation control signal if the operation condition signal is equal to the second value.
1 more element
A method for controlling an actuator in response to an input signal, comprising:
- detecting position of the actuator;
- detecting an operating condition of the input signal;
- calculating a force as a function of the detected position using a predetermined formula, and responsively producing a force feedback signal;
- and,
- receiving the input signal and the force feedback signal and responsively delivering to the actuator a control signal, wherein the control signal is a small control signal if the operating condition is equal to a small signal mode and the control signal is a saturation control signal if the operating condition is equal to a saturated mode.
2 more elements
Dependencies are inferred from the claim text.