A brake fluid pressure control device for vehicles with bar handle which is configured to start a holding control of a fluid pressure of a wheel brake according to wheel deceleration calculated based on a wheel speed of the vehicle is provided. In the brake fluid pressure control device, the vehicle includes an acceleration sensor which is configured to detect acceleration in a front-rear direction of the vehicle, acceleration, detected by the acceleration sensor, which occurs in a rearward direction when the vehicle is decelerating is detected as a positive value, and the holding control is started when it is judged that the acceleration detected by the acceleration sensor is larger than or equal to a detection acceleration threshold value and the wheel deceleration is smaller than or equal to a wheel deceleration threshold value.

A motorcycle (300) includes a clutch lever (14), a clutch switch (15) configured to detect whether or not the clutch lever (14) is gripped, a vehicle speed sensor (16) configured to detect a vehicle speed, a hydraulic rear brake (18), a pressurizing unit (17) configured to perform a pressurizing process that applies an oil pressure to the rear brake (18), and a microcontroller (19) configured to control the pressurizing process by the pressurizing unit (17) based on results of the detection by the vehicle speed sensor (16) and the clutch switch (15).

A simple and inexpensive power brake system for a three-wheel vehicle with two wheels in the rear. One embodiment of the present invention allows the backing plate of a drum brake to rotate about twenty degrees on the axle of the front wheel that is attached to a brake drum, or a backing plate of a caliper of a disk brake to rotate about twenty degrees on the axle of the front wheel that is attached to a brake disk. Rotation of the backing plate is coupled to actuate the rear brake(s).

The invention obtains a controller and a control method capable of improving safety by an automatic deceleration operation while preventing a motorcycle from falling over. The invention also obtains a brake system that includes such a controller.

In the controller, the control method, and the brake system according to the invention, a control mode is initiated in response to trigger information that is generated in accordance with peripheral environment of the motorcycle, and the control mode makes the motorcycle, which includes a damping device damping kinetic energy, execute the automatic deceleration operation. In the control mode, the automatic deceleration operation is executed in a state where a damping rate of the damping device is increased to be higher than that immediately before initiation of the control mode.

A method for controlling a recuperation device that converts kinetic energy into electric energy in a vehicle is provided. The method includes the acts of actuating at least one actuation element for generating a braking action, at least briefly arranging the actuated actuation element in at least one predefined first trigger position, and activating the recuperation device in a defined functional scope in response to the brief arrangement of the actuated actuation element in the at least one predefined first trigger position.

A control method includes at least one emission of a radar signal into an area that encompasses a base surface of the roadway section and a wheel of a vehicle, for example an electric bicycle. A radar frequency spectrum reflected on the base surface and on the wheel is subsequently detected using the radar sensor. A control unit actuates at least one brake, for example a front wheel brake of the electric bicycle, as a function of a difference between the vehicle speed and the wheel speed recognized based on the detected radar frequency spectrum.

A bicycle braking system includes a server, a portable device such as a smartphone, a display unit, a control unit, a power supply unit, a rotating electrical machine, and a bicycle. The portable device includes an image display unit, a braking condition transmitting unit, and a braking condition setting unit. The control unit regeneratively brakes the bicycle using the rotating electrical machine in accordance with the braking condition set by the braking condition setting unit. The braking system enables a non-user to set braking conditions for the bicycle and to perform braking based on the conditions set by the non-user.

A brake control device for vehicles with bar handle includes: a wheel speed obtaining unit obtaining a speed of a wheel; an estimated vehicle body speed setting unit setting an estimated vehicle body speed; a control unit performing fluid pressure control to raise, reduce or hold a brake fluid pressure; and a bank angle obtaining unit obtaining a bank angle. The estimated vehicle body setting unit sets a limit value of a change amount when the estimated vehicle body speed decreases at a time of braking of the vehicle, and sets the estimated vehicle body speed based on the limit value when a deceleration amount of the speed of the wheel on a braked side is larger than the limit value, and the estimated vehicle body speed setting unit corrects the limit value so that the change amount decreases as the obtained bank angle increases.

The present invention refers to a brake assist system (1) for cyclist on a bicycle (100) including a braking system (101) having a braking member (105) capable of exerting a braking force (F.sub.B) on a front wheel (101) of the bicycle (100) by the effect of a force (F.sub.c) applied by the cyclist on a lever (103). The system (1) includes a sensor (2) for measuring the angular speed (.sub.1) of the front wheel (101) of the bicycle (100); an actuator (3) capable of exerting an actuator force (F.sub.A), connectable to said braking system of the bicycle so that the actuator force (F.sub.A) opposes the force (F.sub.c) applied by the cyclist on the lever (103), in order to reduce the braking force (F.sub.B); and a control module (4) configured for receiving, as an input, the signal representative of the angular speed (.sub.1) of the front wheel (101) and for determining from this a deceleration () of the front wheel (101).

In order to improve a wheel unit for a bicycle, comprising a hub and a wheel rim, which is arranged rotatably about an axis of rotation, wherein the hub and the wheel rim are connected to one another by spokes, it is proposed to arrange a brake disc and a sensor ring, which comprises a sensing region, on the hub and to position the sensing region between the brake disc and the spokes.