Methods and systems for estimating an axle load of a vehicle are described. In one example, a method is disclosed wherein axle load is estimated in response to an angle between two components of an axle. The angle may change as weight is added to or removed from the axle such that axle load may be determined as a function of the angle.

Systems for estimating an axle load of a vehicle wherein axle load is estimated in response to an angle between two components of an axle. The angle may change as weight is added to or removed from the axle such that axle load may be determined as a function of the angle.

A brake system includes a driving part driven by electric power to brake a rotary body of a human-powered vehicle and an electronic controller configured to control the driving part. The electronic controller has a plurality of control modes including a first mode that drives the driving part in accordance with a user operation and a second mode that does not drive the driving part regardless of the user operation. The electronic controller is configured to switch the plurality of control modes based on setting information related to an input to the human-powered vehicle.

Methods and systems for estimating an axle load of a vehicle are described. In one example, a method is disclosed wherein axle load is estimated in response to an angle between two components of an axle. The angle may change as weight is added to or removed from the axle such that axle load may be determined as a function of the angle.

A brake control system may comprise an inertial sensor coupled to an axle and configured to measure a linear acceleration of the axle and an antiskid control (ASK) in electronic communication with the inertial sensor, wherein at least one of the inertial sensor or the ASK calculate a linear velocity of the axle based on the linear acceleration, and the ASK uses the linear velocity to calculate a wheel slip speed.

A brake system includes a driving part driven by electric power to brake a rotary body of a human-powered vehicle and an electronic controller configured to control the driving part. The electronic controller has a plurality of control modes including a first mode that drives the driving part in accordance with a user operation and a second mode that does not drive the driving part regardless of the user operation. The electronic controller is configured to switch the plurality of control modes based on setting information related to an input to the human-powered vehicle.

An aircraft landing gear assembly (112) including a shock absorber strut (114), a bogie (120), a link assembly (124), and a movement detector (132). The shock absorber strut includes an upper and a lower telescoping parts (116, 118), the upper part being connectable to the airframe of an aircraft and the lower part being connected to the bogie. The link assembly extends between the upper and lower telescoping parts. The movement detector is arranged to detect movement of the link assembly relative to the bogie. The movement detector includes: a piston (338) slidably received within a cylinder (336), fluid which flows as a result of relative movement between the piston and the cylinder; and a pressure transducer (336) arranged to sense a local pressure change in the fluid.

A brake control system may comprise an inertial sensor coupled to an axle and configured to measure a linear acceleration of the axle and an antiskid control (ASK) in electronic communication with the inertial sensor, wherein at least one of the inertial sensor or the ASK calculate a linear velocity of the axle based on the linear acceleration, and the ASK uses the linear velocity to calculate a wheel slip speed.

A bearing raceway ring (25) disposed near a mounting section (9) is disposed on the outer periphery of a circular cylinder section (19). A fluid-sealed chamber (40) in which a measurement liquid is hermetically enclosed is provided between a first member (8) and the bearing raceway ring (25) which is disposed near the mounting section (9). Pressure acting on the fluid to be measured changes as the bearing raceway ring (25) moves in the cylinder-axis direction, the bearing raceway ring (25) being disposed near the mounting section (9). The fluid-sealed chamber (40) is provided with a pressure sensor (44) capable of detecting a change in the pressure of the fluid to be measured.