A master cylinder for a brake. The master cylinder includes a cylinder main body having a hydraulic pressure chamber, a reservoir tank having a storage chamber, and a separator that is provided in the reservoir tank to divide a space in the storage chamber of the reservoir tank into an upper region and a lower region. A hydraulic fluid is storable in the hydraulic pressure chamber, and is storable in the storage chamber for thereby replenishing the hydraulic pressure chamber. The hydraulic fluid is circulatable between the upper region and the lower region, such that a liquid surface of the hydraulic fluid is in the upper region. The separator has a lower surface in the lower region. The lower surface has an inner portion, and an inclined portion that surrounds the inner portion and that is inclined outwardly and upwardly with respect to the inner portion.

A master cylinder for a brake. The master cylinder includes a cylinder main body having a hydraulic pressure chamber, a reservoir tank having a storage chamber, and a separator that is provided in the reservoir tank to divide a space in the storage chamber of the reservoir tank into an upper region and a lower region. A hydraulic fluid is storable in the hydraulic pressure chamber, and is storable in the storage chamber for thereby replenishing the hydraulic pressure chamber. The hydraulic fluid is circulatable between the upper region and the lower region, such that a liquid surface of the hydraulic fluid is in the upper region. The separator has a lower surface in the lower region. The lower surface has an inner portion, and an inclined portion that surrounds the inner portion and that is inclined outwardly and upwardly with respect to the inner portion.

A spring based regenerative braking system is adapted to be mounted on a rear wheel of a vehicle comprises a handle assembly, a rear wheel assembly, a roller wheel assembly and a discharge level assembly that selectively operate in three modes namely a Synchronization mode, an Asynchronization mode and a Discharge mode for storing braking energy during braking events of the vehicle and efficient utilization and management thereof in stop and go traffic conditions.

A spring based regenerative braking system is adapted to be mounted on a rear wheel of a vehicle comprises a handle assembly, a rear wheel assembly, a roller wheel assembly and a discharge level assembly that selectively operate in three modes namely a Synchronization mode, an Asynchronization mode and a Discharge mode for storing braking energy during braking events of the vehicle and efficient utilization and management thereof in stop and go traffic conditions.

A controller and a control method of a brake system for a motorcycle are obtained, the controller and the control method capable of improving behavior stability of a motorcycle at a time when a road surface is a steep upward slope. The invention also obtains a brake system for a motorcycle that includes such a controller.

In the controller and the control method of the brake system for a motorcycle and in the brake system for a motorcycle according to the invention, in the cases where it is determined that a user's operation of a first brake operation section 11 is present and it is determined that the motorcycle 100 is in a slip-down state where the motorcycle travels backward while a front wheel 3 is braked when the road surface is the upward slope, an emergency braking action that causes a rear-wheel brake mechanism 14 to generate a braking force that brakes a rear wheel 4 is executed.

A controller and a control method of a brake system for a motorcycle are obtained, the controller and the control method capable of improving behavior stability of a motorcycle at a time when a road surface is a steep upward slope. The invention also obtains a brake system for a motorcycle that includes such a controller.

In the controller and the control method of the brake system for a motorcycle and in the brake system for a motorcycle according to the invention, in the cases where it is determined that a user's operation of a first brake operation section 11 is present and it is determined that the motorcycle 100 is in a slip-down state where the motorcycle travels backward while a front wheel 3 is braked when the road surface is the upward slope, an emergency braking action that causes a rear-wheel brake mechanism 14 to generate a braking force that brakes a rear wheel 4 is executed.

A straddle-type vehicle includes a drive unit used for driving a rear wheel of the straddle-type vehicle, wherein a discharge port that discharges oil in the drive unit is installed on a lower section of the drive unit, and a guide that guides oil to an outside in a vehicle width direction is installed in a vicinity of a lower section of the discharge port.

A safe two-wheeled self-balancing vehicle includes two power wheels, a motion sensor, a control circuit, a chassis structure, a direction control input device, and a power source is provided. The power wheels are installed at two sides of the chassis structure. The motion sensor is connected to the control circuit and fixed to the chassis structure opposite thereto. The direction control input device is connected to the control circuit. The control circuit drives the power wheels. A protection wheel support disposed at a front side or both the front side and a rear side of the chassis structure. A floating protection wheel is installed at a front end of the protection wheel support. The manner in which the protection wheel support is connected with the chassis structure or a structure of the protection wheel support itself enables the floating protection wheel move freely in a vertical direction with respect to the chassis structure.

A safe two-wheeled self-balancing vehicle includes two power wheels, a motion sensor, a control circuit, a chassis structure, a direction control input device, and a power source is provided. The power wheels are installed at two sides of the chassis structure. The motion sensor is connected to the control circuit and fixed to the chassis structure opposite thereto. The direction control input device is connected to the control circuit. The control circuit drives the power wheels. A protection wheel support disposed at a front side or both the front side and a rear side of the chassis structure. A floating protection wheel is installed at a front end of the protection wheel support. The manner in which the protection wheel support is connected with the chassis structure or a structure of the protection wheel support itself enables the floating protection wheel move freely in a vertical direction with respect to the chassis structure.

A two wheel tandem vehicle is propelled by hand-grasped poles. A front wheel on a forward member and a rear wheel on a rearward member align along a longitudinal axis. The forward member pivots about a substantially vertical steering axis. A saddle and footholds support the rider and together with an accessory contact means allow the rider to balance and steer the device. The rider's hands do not contact the vehicle but are used to propel the vehicle with the poles.