A brake device is provided to a human-powered vehicle. The brake device includes an input body, a brake, and a power converter. A driving force is input to the input body. The brake is configured to contact a rotational body of the human-powered vehicle. The power converter is configured to convert a rotational force of the input body to a force that moves the brake toward the rotational body. The power converter includes a transmission configured to change a ratio of a movement amount of the brake to an output rotational speed of the input body.

A hydraulic pressure controller includes: a hydraulic pressure control mechanism including a brake control valve for controlling a hydraulic pressure of a brake fluid; and a control substrate including a brake control circuit that controls an operation of the brake control valve. The control substrate includes a suspension control circuit that controls an operation of a suspension control valve for controlling a damping force of a suspension of the vehicle, a first relay that enables energization between the brake control valve and a power supply, and that shuts off energization between the brake control valve and the power supply, and a second relay that enables energization between the suspension control valve and the power supply, and that shuts off energization between the suspension control valve and the power supply.

A hydraulic pressure controller includes: a hydraulic pressure control mechanism including a brake control valve for controlling a hydraulic pressure of a brake fluid; and a control substrate including a brake control circuit that controls an operation of the brake control valve. The control substrate includes a suspension control circuit that controls an operation of a suspension control valve for controlling a damping force of a suspension of the vehicle, a first relay that enables energization between the brake control valve and a power supply, and that shuts off energization between the brake control valve and the power supply, and a second relay that enables energization between the suspension control valve and the power supply, and that shuts off energization between the suspension control valve and the power supply.

A communication system includes a first communication device, a second communication device and a third communication device. The first communication device is configured to be connected to an operating device mounted on a human-powered vehicle. The second communication device is configured to be connected to a transmission device of the human-powered vehicle. The third communication device is configured to be connected to a component that is mounted on the human-powered vehicle and that differs from the operating device and the transmission device. The second communication device is configured to receive first information that is sent from the first communication device in response to operation of the operating device. The third communication device of the component is configured to receive second information that includes at least some of the first information sent from the second communication device.

A measurement of the rotation speed of an object is made using a time-of-flight sensor configured to detect a passing of one or more of elements of the object through a given position. The time-of-flight sensor is further mounted on a one-person vehicle configured to protect the one-person vehicle against collisions through the making a time-of-flight measurement of a relative speed between the one-person vehicle and an obstacle.

The present invention obtains a controller and a control method capable of achieving appropriate cornering during cruise control of a straddle-type vehicle.

In the controller and the control method according to the present invention, during the cruise control, in which acceleration/deceleration of the straddle-type vehicle is automatically controlled without relying on an accelerating/decelerating operation by a driver, an entry of a curved road is detected on the basis of a predicted route of the straddle-type vehicle, and the straddle-type vehicle is decelerated at a time point before the straddle-type vehicle reaches the entry.

The present invention obtains a controller and a control method capable of achieving appropriate cornering during cruise control of a straddle-type vehicle.

In the controller and the control method according to the present invention, during the cruise control, in which acceleration/deceleration of the straddle-type vehicle is automatically controlled without relying on an accelerating/decelerating operation by a driver, an entry of a curved road is detected on the basis of a predicted route of the straddle-type vehicle, and the straddle-type vehicle is decelerated at a time point before the straddle-type vehicle reaches the entry.

The present invention obtains a controller and a control method capable of appropriately executing automatic emergency deceleration operation of a straddle-type vehicle. In the controller according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at a braking start time point at which a braking force starts being generated on at least one of wheels, braking force distribution between the front and rear wheels is brought into an initial state where the braking force is generated on the front wheel. In the control method according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at the braking start time point at which the braking force starts being generated on at least one of the wheels, the braking force distribution between the front and rear wheels is brought into the initial state where the braking force is generated on the front wheel.

The present invention obtains a controller and a control method capable of appropriately executing automatic emergency deceleration operation of a straddle-type vehicle. In the controller according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at a braking start time point at which a braking force starts being generated on at least one of wheels, braking force distribution between the front and rear wheels is brought into an initial state where the braking force is generated on the front wheel. In the control method according to the present invention, when the automatic emergency deceleration operation of the straddle-type vehicle is executed, at the braking start time point at which the braking force starts being generated on at least one of the wheels, the braking force distribution between the front and rear wheels is brought into the initial state where the braking force is generated on the front wheel.

A bicycle includes a frame having a seat tube, a rear wheel including a drive plate, and a drive system configured to drive rotation of the rear wheel. The drive system includes at least one shaft operably extending in a direction between the seat tube and the rear wheel and arranged to interact with the drive plate. A pair of drive assemblies are located near or at least in part inside the seat tube and are arranged to operably interact with the drive shaft. The at least one drive shaft converts linear motion of the drive assemblies into rotation of the rear wheel without a chain or chainring.