A system and method for controlling a vehicle wheel brake are provided. The system includes one or more inertial sensors disposed within a handle coupled to, and configured for movement relative to, a fixed reference frame in the vehicle between a neutral position and one or more input positions. Each sensor generates an inertial measurement signal indicative of a value of an inertial measurement associated with movement of the handle and sensor between the neutral and input positions. A controller receives the signals, identifies a turning point in a rate of change of the value of one of the inertial measurement indicated by the signals, and generates an operator command signal when the value meets a predetermined condition. The operator command signal is configured to cause one of application or release of the wheel brake.

An operating device for a human-powered vehicle comprises a base member, an operating member, an accommodating structure, and a second electric power source. The operating member is movably coupled to the base member. The accommodating structure is configured to accommodate a first electric power source. The second electric power source is electrically connected so as to supply electricity to a wireless communicator. The second electric power source is separate from the first electric power source.

A driver assistance system enables brake and accelerator operation by an operation bar in a manner close to a sense of a driver of a vehicle, regardless of the degree of operation of the operation bar. Embodiments include an operation bar extending downward toward a vehicle floor panel from a manual operation area where a seated driver manually operates the operation bar, and whose lower portion is supported in a slidingly displaceable manner along an axial direction in a front-down, rear-up tilted state. The operation bar includes a brake actuation section, below the manual operation area, that actuates a brake mechanism by sliding displacement of the operation bar in a front-down direction; and an accelerator actuation section that actuates an acceleration mechanism by sliding displacement of the operation bar in a rear-up direction that is a reverse direction on the same axis from the sliding displacement in the front-down direction.

A driver assistance system enables brake and accelerator operation by an operation bar in a manner close to a sense of a driver of a vehicle, regardless of the degree of operation of the operation bar. Embodiments include an operation bar extending downward toward a vehicle floor panel from a manual operation area where a seated driver manually operates the operation bar, and whose lower portion is supported in a slidingly displaceable manner along an axial direction in a front-down, rear-up tilted state. The operation bar includes a brake actuation section, below the manual operation area, that actuates a brake mechanism by sliding displacement of the operation bar in a front-down direction; and an accelerator actuation section that actuates an acceleration mechanism by sliding displacement of the operation bar in a rear-up direction that is a reverse direction on the same axis from the sliding displacement in the front-down direction.

A bicycle can include a forward frame triangle that can include a top tube, a bottom tube, a bottom bracket, a structural seat tube, a compliant seat tube, and a pair of seat stays. The top tube can have a first end connected to a head tube and a second end. The bottom tube can have a first end connected to the head tube. The bottom bracket can be connected to the bottom tube. The structural seat tube can be connected to the bottom bracket and the top tube. The compliant seat tube can extend in an upward direction from the bottom bracket to the top tube and within the structural seat tube. The compliant seat tube can be coupled to the forward frame triangle such that the compliant seat post can bend within the structural seat tube.

A bicycle can include a forward frame triangle that can include a top tube, a bottom tube, a bottom bracket, a structural seat tube, a compliant seat tube, and a pair of seat stays. The top tube can have a first end connected to a head tube and a second end. The bottom tube can have a first end connected to the head tube. The bottom bracket can be connected to the bottom tube. The structural seat tube can be connected to the bottom bracket and the top tube. The compliant seat tube can extend in an upward direction from the bottom bracket to the top tube and within the structural seat tube. The compliant seat tube can be coupled to the forward frame triangle such that the compliant seat post can bend within the structural seat tube.

A vehicle has a frame, a straddle seat, front right and left wheels, a rear wheel, a steering assembly, a motor, front right and left brakes, a rear brake, and an electronic brake control unit. The electronic brake control unit has a pump, a valve box and an electronic controller. The electronic controller is electronically connected to the pump, and valves of the valve box for controlling their operation. A hand brake lever actuates a first master cylinder and thereby actuates the front brakes through the valve box. A foot brake lever actuates a second master cylinder and thereby actuates the rear brake through the valve box.

A vehicle has a frame, a straddle seat, front right and left wheels, a rear wheel, a steering assembly, a motor, front right and left brakes, a rear brake, and an electronic brake control unit. The electronic brake control unit has a pump, a valve box and an electronic controller. The electronic controller is electronically connected to the pump, and valves of the valve box for controlling their operation. A hand brake lever actuates a first master cylinder and thereby actuates the front brakes through the valve box. A foot brake lever actuates a second master cylinder and thereby actuates the rear brake through the valve box.

A dual input master cylinder, comprising a housing having a first input, a piston base positioned within the housing, and a piston rod having a first end and a second end, the first end of the piston rod abutting the piston base and the second end of the piston rod acting as a second input of the dual input master cylinder, wherein the piston rod is capable of being spaced apart from the piston base.

An emergency park brake system of an aircraft may include an electrical power interface, an electromechanical actuator, and a hydraulic brake valve. The electrical power interface may be configured to receive electrical power from a power source. The electromechanical actuator may be in selective power receiving communication with the electrical power interface and the electromechanical actuator may be mechanically coupled to and configured to selectively actuate the hydraulic brake valve. The electrical connection between the electromechanical actuator and the electrical power interface may be based on an emergency braking input.