A wheel speed measuring device for an aircraft braking system uses dual technology packaged in a single transducer that incorporates the robust and reliable variable reluctance technology along with a secondary package for measuring position and velocity bi-directionally for low speed and taxi operations. The transducer of the present invention is preferably incorporated into the envelope of the axle to allow both retrofit on existing aircraft and to maintain existing axle design and configuration.

A braking force control device includes a target acceleration calculation unit that calculates a first target acceleration based on an acquired operation amount of an accelerator pedal, a powertrain capability acquisition unit that acquires a braking force that is generable by a powertrain, and an instruction unit that instructs generation of braking forces in the powertrain and a brake. The instruction unit is configured to, when a first braking force for achieving the first target acceleration is equal to or less than the braking force that is generable by the powertrain, instruct a controller of the powertrain to generate the first braking force, and when the first braking force is larger than the braking force that is generable by the powertrain, instruct the controller of the powertrain to generate the braking force that is generable by the powertrain.

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.

Disclosed herein is an electronic brake system. The electric brake system includes a pedal operator connected to a brake pedal and configured to transmit a braking intention to an electronic control unit; a reservoir configured to store a working fluid; a pressure supplier provided with a driver providing a power, and configured to generate a hydraulic pressure of a plurality of wheel brakes; and a braking pressure regulator configured to regulate a hydraulic pressure, which is generated by the pressure supplier and transmitted to the wheel brake, wherein the braking pressure regulator includes a first hydraulic circuit hydraulically connected to two wheel brakes and a second hydraulic circuit hydraulically connected to the other two wheel brakes, wherein the first hydraulic circuit and the second hydraulic circuit are provided with a plurality of inlet lines connecting the pressure supplier to each of the wheel brake, and a plurality of outlet lines connecting each of the wheel brake to the reservoir or connecting each of the wheel brake to the pedal operator, wherein the first hydraulic circuit and the second hydraulic circuit are hydraulically separated from each other to regulate a hydraulic pressure, which is transmitted to the wheel brake by the other hydraulic circuit when any one hydraulic circuit operates abnormally.

A brake system comprises a hydraulic braking device configured to generate a hydraulic braking force; and a regenerative braking device configured to generate a regenerative braking force by an electric motor; wherein the hydraulic braking device comprises a master cylinder configured to generate a hydraulic pressure corresponding to a displacement amount of a brake pedal by discharging a brake oil; a plurality of valves disposed in a flow path connecting a plurality of wheel cylinders and the master cylinder; an accumulator disposed in the flow path; and an electronic control unit (ECU) configured to control the plurality of valves so that the brake oil discharged from the master cylinder is stored in the accumulator, and to transmit a request signal for generating the regenerative braking force to the regenerative braking device.

A system and method for managing braking in a degraded adhesion condition for a vehicle system including at least one vehicle comprising setting a target deceleration value, applying a non-degraded braking force via a braking system of the vehicle system, detecting a presence of a degraded adhesion condition between the vehicle system and a route along which the vehicle system moves. Responsive to the degraded adhesion condition not being detected, maintaining the application of the non-degraded braking force, or responsive to the degraded adhesion condition being detected, applying a degraded braking force, activating recovery means to control deceleration of the vehicle system, determining a compensation deceleration value, and applying at least one of the braking system or recovery means to control the deceleration of the vehicle system.

A brake assist controller determines that an operating condition for a brake assist control is satisfied if time to collision (TTC) calculated by dividing an inter-vehicle gap by a relative speed is equal to or smaller than a reference time to collision (reference TTC), and if the TTC is larger than the reference TTC, the brake assist controller determines that the operating condition for the brake assist control is satisfied if a time headway calculated by dividing the inter-vehicle gap by a vehicle speed of an own vehicle is equal to or smaller than a reference time headway.

A brake assist controller determines that an operating condition for a brake assist control is satisfied if time to collision (TTC) calculated by dividing an inter-vehicle gap by a relative speed is equal to or smaller than a reference time to collision (reference TTC), and if the TTC is larger than the reference TTC, the brake assist controller determines that the operating condition for the brake assist control is satisfied if a time headway calculated by dividing the inter-vehicle gap by a vehicle speed of an own vehicle is equal to or smaller than a reference time headway.

A method of manufacturing a plurality of wear liner segments may comprise selecting a number of wear liner segments for a wear liner assembly. The wear liner assembly may be annular in shape. The number of wear liner segments may selected based on minimizing a waste portion of a textile board and/or maximizing a production capacity of a plurality of the wear liner assembly.

The present invention pertains to a brake system for a vehicle, in particular a wheeled vehicle, comprising a control unit configured to operate the brake system in an automatic retarding control mode and in a brake assist mode, a brake pedal valve, and at least one brake valve unit for actuating a brake actuator. The break valve unit comprises a brake valve for applying pressurized fluid to the brake actuator in response to a control pressure applied to a hydraulic actuator of the brake valve, a blocking valve for controlling application of pressurized fluid from the brake pedal valve to the hydraulic actuator of the brake valve, and a brake pressure control valve for controlling application of pressurized fluid to the hydraulic actuator of the brake valve.