The invention obtains a controller and a control method capable of improving safety by an automatic braking operation while preventing a motorcycle from falling over. The invention also obtains a brake system that includes such a controller. In the controller and the control method according to the invention, a control mode that makes the motorcycle execute the automatic braking operation is initiated in response to trigger information generated in accordance with peripheral environment of the motorcycle. In the control mode, distribution of an automatic braking force to a front wheel and a rear wheel is controlled in accordance with travel posture of the motorcycle, and the automatic braking force is a braking force that is applied to the wheels of the motorcycle by the automatic braking operation.

A hydraulic brake distributor for a two-wheeled vehicle has an outer body that forms an internal cavity accommodating two floating piston valve elements. The two floating piston valve elements are axially movable and mutually coupled in a telescopic manner. One of the two floating piston valve elements has an internal through-channel.

The present invention obtains a controller and a control method capable of appropriately executing adaptive cruise control for a straddle-type vehicle while securing a driver's comfort.

In the controller and the control method according to the present invention, when braking forces are generated on wheels of the straddle-type vehicle during adaptive cruise control, in which the straddle-type vehicle is made to travel according to a distance from the straddle-type vehicle to a preceding vehicle, motion of the straddle-type vehicle, and the driver's instruction, at a braking start time point at which the braking force starts being generated on each of the wheels, braking force distribution between the front and rear wheels is brought into an initial state where the braking force generated on the rear wheel is larger than the braking force generated on the front wheel. Then, a distribution ratio for the front wheel in the braking force distribution between the front and rear wheels is increased with a lapse of time.

A hydraulic-type time-difference brake apparatus includes at least a driving device, a housing, a first pump mechanism and a second pump mechanism as main components combined together. The driving device is provided with a first driving rod, a second driving rod, a brake starting member and a housing, one end of the first driving rod is connected to the brake starting member, and the other end is connected to the first pump mechanism, the first driving rod can push the first pump mechanism and output the first braking force to the rear wheel brake; one end of the second driving rod is connected to the brake starting member by a sliding device, and the other end is connected to the second pump mechanism, the second driving rod can push the second pump mechanism and output the second braking force to the front wheel brake. The sliding process of the sliding device can delay the time the brake starting member activates the second driving rod, so that the start time between the first driving rod and the second driving rod will have a time difference. In this way, the driver can cause the rear wheel brake and the front wheel brake to generate a time-difference brake by only one braking operation, the rear wheel brake can first generate a braking force on the rear wheel to reduce the speed of the rear wheel, then the front wheel brake will generate a larger braking force on the front wheel more than the rear wheel after a time difference to improve the safety of the vehicle.

The present invention obtains a controller and a control method capable of executing automatic cruise operation that suppresses failure of a friction brake mechanism for a rear wheel.

A controller for a motorcycle according to the present invention includes a mode change section that changes a mode to a first mode in a state where a temperature of a rear-wheel friction brake mechanism is lower than a first prescribed temperature and to a second mode in a state where the temperature of the rear-wheel friction brake mechanism is higher than the first prescribed temperature during automatic deceleration in the automatic cruise operation. In the case where the braking forces generated on the rear wheel in the first mode and the second mode are compared under a condition that the same deceleration is generated in the motorcycle by the automatic deceleration, in a state where the deceleration is at least less than a first reference amount, the braking force generated on the rear wheel in the second mode is smaller than the braking force generated on the rear wheel in the first mode.

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

In the controller and the control method according to the present invention, during the adaptive cruise control in which the straddle-type vehicle is made to travel according to a distance from the straddle-type vehicle to a preceding vehicle, motion of the straddle-type vehicle, and a driver's instruction, at least one of braking force distribution, which is distribution of braking forces generated on wheels of the straddle-type vehicle to the front and rear wheels, and drive power distribution, which is distribution of drive power transmitted to the wheels of the straddle-type vehicle to the front and rear wheels, is controlled on the basis of lateral acceleration of the straddle-type vehicle.

The invention has a purpose of providing a controller and a control method capable of suppressing a posture of a motorcycle from becoming unstable in a process of reducing a brake force that has been retained by hill-hold control.

In the cases where the brake force, which has been retained by the hill-hold control, starts to be reduced and it is then determined on the basis of a detection signal of a detection mechanism 8 that the motorcycle starts moving, a control section 7 reduces a reduction amount of the brake force per time to make it smaller than the reduction amount of the brake force per time prior to the determination that the motorcycle starts moving.

A brake control device and a brake system are configured to appropriately apply a braking force to a rotary body of a human-powered vehicle. The brake control device includes an electronic controller that controls a braking portion electrically driven to brake a rotary body rotating in accordance with traveling of a human-powered vehicle. The electronic controller controls the braking portion in accordance with an operation amount of an operating device and a state related to the human-powered vehicle.

A brake hydraulic pressure control unit capable of improving mountability of a brake system on a motorcycle is obtained. In addition, a brake system for a motorcycle including such a brake hydraulic pressure control unit and a motorcycle are obtained. In the brake hydraulic pressure control unit of the brake system for a motorcycle, an inlet valve, an outlet valve, and a pump in one of hydraulic circuits as a boost-type hydraulic circuit and a first valve and a second valve in the hydraulic circuit are separately provided in a primary base body and a secondary base body. The primary base body and the secondary base body are separated from each other.

A motor driving control apparatus for a motor-assisted vehicle such as a motor-assisted bicycle includes: an inverter configured to drive a motor; and a controller configured to control the inverter to start regeneration after lapse of a first time period since a second predetermined time period elapsed or gradually increase a regeneration amount, when a state that an acceleration of a vehicle on which the motor is embodied is negative and equal to or less than a first predetermined value continues for the second predetermined time period.