An aircraft landing gear assembly comprising: an axle having an axis, a wheel rotatably mounted on the axle to rotate about the axis, a brake arranged to selectively exert a braking torque on the wheel about the axis, a brake anchor structure having a substantially fixed position relative to the axle, a brake reaction linkage that mechanically couples the brake to the brake anchor structure, and a sensor comprising a sensor element arranged to detect a change in one or more physical properties of a component of the brake reaction linkage in order to determine a stress in the component due to the braking torque, wherein the sensor element does not contact the component.

In a particular embodiment, a force sensor apparatus is disclosed that includes a force-compliant element that deforms in response to forces applied to the force sensor apparatus. The apparatus also includes a sensing element coupled to the force-compliant element and is configured to generate a signal indicating the degree that the force-compliant element deforms in response to the applications of forces to the force sensor apparatus. In this embodiment, the apparatus also includes a printed circuit board configured to receive the signal from the sensing element and a support structure having a surface on which the printed circuit board is coupled. The support structure has an outer rim that is attached to the force-compliant element. The apparatus also includes a sensor housing that covers the printed circuit board. The sensor housing has an outer rim attached to the force-compliant element.

A vehicle display device is provided in an electric vehicle including a friction brake and includes: a loss energy calculation module that calculates a loss energy released from the electric vehicle on the basis of an actuation state of the friction brake; a consumption calculation module that calculates an energy consumption consumed by the electric vehicle on the basis of the loss energy; a first efficiency calculation module that calculates a first energy efficiency on the basis of a travel distance and an energy consumption in a first period; a second efficiency calculation module that calculates a second energy efficiency on the basis of a travel distance and an energy consumption in a second period shorter than the first period; and a display control module that controls a display content of an onboard display on the basis of an efficiency difference between the first and second energy efficiencies.

A vehicle display device is provided in an electric vehicle including a friction brake and includes: a loss energy calculation module that calculates a loss energy released from the electric vehicle on the basis of an actuation state of the friction brake; a consumption calculation module that calculates an energy consumption consumed by the electric vehicle on the basis of the loss energy; a first efficiency calculation module that calculates a first energy efficiency on the basis of a travel distance and an energy consumption in a first period; a second efficiency calculation module that calculates a second energy efficiency on the basis of a travel distance and an energy consumption in a second period shorter than the first period; and a display control module that controls a display content of an onboard display on the basis of an efficiency difference between the first and second energy efficiencies.

A method for controlling a braking system of an electromagnetic motor, the electromagnetic motor having a moveable output shaft, comprising the steps of: receiving a velocity signal and/or an acceleration signal based on movement of the output shaft, said velocity signal and/or acceleration signal having a respective frequency spectrum; identifying an event from the velocity and/or the acceleration signal using the respective frequency spectrum, wherein said event corresponds to an uncontrolled movement of the output shaft and has a characteristic frequency spectrum.

A method for controlling a braking system of an electromagnetic motor, the electromagnetic motor having a moveable output shaft, comprising the steps of: receiving a velocity signal and/or an acceleration signal based on movement of the output shaft, said velocity signal and/or acceleration signal having a respective frequency spectrum; identifying an event from the velocity and/or the acceleration signal using the respective frequency spectrum, wherein said event corresponds to an uncontrolled movement of the output shaft and has a characteristic frequency spectrum.

A brake booster assembly and method of operation thereof are provided. The assembly includes a rack moveable along a first axis. A sensor is coupled with the rack for sensing force and displacement of the rack and outputting a proportional signal. A clutch subassembly is disposed adjacent and coupled to the rack and includes a drum and a hub in a spaced relationship with the drum. A motor is disposed adjacent the rack and coupled to the clutch subassembly for rotating the drum. A magnetorheological fluid is disposed between the drum and the hub. An electromagnet is disposed about the clutch subassembly for generating an electromagnetic field to affect the viscosity of the magnetorheological fluid. A controller is electrically connected to the electromagnet and to the sensor and to the motor for controlling the motor and the electromagnetic field of the electromagnet in response to the signal from the sensor.

A brake booster assembly and method of operation thereof are provided. The assembly includes a rack moveable along a first axis. A sensor is coupled with the rack for sensing force and displacement of the rack and outputting a proportional signal. A clutch subassembly is disposed adjacent and coupled to the rack and includes a drum and a hub in a spaced relationship with the drum. A motor is disposed adjacent the rack and coupled to the clutch subassembly for rotating the drum. A magnetorheological fluid is disposed between the drum and the hub. An electromagnet is disposed about the clutch subassembly for generating an electromagnetic field to affect the viscosity of the magnetorheological fluid. A controller is electrically connected to the electromagnet and to the sensor and to the motor for controlling the motor and the electromagnetic field of the electromagnet in response to the signal from the sensor.

Various antilock braking systems, devices, and methods using sensorized brake pads are disclosed. In some embodiments, the present disclosure provides a method for improving the performance of an antilock braking (ABS) and anti-slip regulation (ASR) system of a vehicle. The method can include detecting the actual value of the coefficient of friction (e.g., between a tire and the ground), updating the coefficient of friction during braking using the braking torque data derived from at least one braking pad of each wheel, and adjusting brake force. For example, the brake force can be adjusted as a function of and/or to be approximately equal to the value of the actual tire-road friction during braking.

Various antilock braking systems, devices, and methods using sensorized brake pads are disclosed. In some embodiments, the present disclosure provides a method for improving the performance of an antilock braking (ABS) and anti-slip regulation (ASR) system of a vehicle. The method can include detecting the actual value of the coefficient of friction (e.g., between a tire and the ground), updating the coefficient of friction during braking using the braking torque data derived from at least one braking pad of each wheel, and adjusting brake force. For example, the brake force can be adjusted as a function of and/or to be approximately equal to the value of the actual tire-road friction during braking.