Hydraulic brake system, bicycle, and method for controlling hydraulic brake system

Patent metadata

Field	Value
Publication number	US-2018362004-A1
Application number	US-201616063314-A
Country	US
Kind code	A1
Filing date	Nov 8, 2016
Priority date	Dec 18, 2015
Publication date	Dec 20, 2018
Grant date	—

Abstract

The invention obtains a hydraulic brake system, installability of which in a bicycle is improved. The invention also obtains a bicycle that includes such a hydraulic brake system. The invention further obtains a method for controlling such a hydraulic brake system.
A hydraulic brake system 100 includes a hydraulic pressure controller 100 and a power supply unit 150 of the hydraulic pressure controller 100 , the hydraulic pressure controller 100 including: a base section that is formed with a channel, through which a brake fluid flows, therein; a valve that is attached to the base section and opens and closes the channel; and a control section that governs an opening/closing operation of the valve and controlling hydraulic pressure of the brake fluid that is supplied to a wheel braking section of the bicycle. The power supply unit 150 includes a generator 151 that generates electric power by traveling of a bicycle 200.

First claim

1 . A hydraulic brake system comprising:
a hydraulic pressure controller including: a base section that is formed with a channel, through which a brake fluid flows, therein; a valve that is attached to the base section and opens and closes the channel; and a control section that governs an opening/closing operation of the valve, and controlling hydraulic pressure of the brake fluid that is supplied to a wheel braking section of a bicycle; and a power supply unit of the hydraulic pressure controller, wherein the power supply unit includes a generator that generates electric power by traveling of the bicycle.

2 . The hydraulic brake system according to claim 1 , wherein the power supply unit includes a battery that stores the electric power generated by the generator.

3 . The hydraulic brake system according to claim 1 , wherein the generator is a hub dynamo that generates the electric power by rotation of a wheel of the bicycle.

4 . The hydraulic brake system according to claim 1 , wherein the generator is a motor of a drive source of a wheel of the bicycle.

5 . The hydraulic brake system according to claim 1 , wherein the control section controls a power generating operation of the generator in accordance with an operation state of the braking operation section of the bicycle by a user.

6 . The hydraulic brake system according to claim 5 , wherein the control section initiates power generation by the generator in a state where the braking operation section is operated and the wheel braking section does not start braking.

7 . The hydraulic brake system according to claim 6 , wherein the control section continues the power generation by the generator when the wheel braking section starts braking.

8 . The hydraulic brake system according to claim 1 , wherein the control section executes anti-lock brake control for opening/closing the valve.

9 . A bicycle comprising:
the hydraulic brake system according to claim 1 .

10 . A method for controlling a hydraulic brake system including:
a hydraulic pressure controller including: a base section that is formed with a channel, through which a brake fluid flows, therein; and a valve that is attached to the base section and opens and closes the channel and controlling fluid pressure of the brake fluid that is supplied to a wheel braking section of a bicycle; and a power supply unit of the hydraulic pressure controller, the power supply unit including a generator that generates electric power by traveling of the bicycle, the method for controlling the hydraulic brake system comprising: a step of governing an opening/closing operation of the valve; a step of determining an operation state of the braking operation section of the bicycle by a user; and a step of controlling a power generating operation of the generator in accordance with the operation state.

Assignees

• Bosch Gmbh Robert

Inventors

• Atsushi Hiroaki
• Ikeda Shigeki

Classifications

• B60T8/42

  having expanding chambers for controlling pressure {, i.e. closed systems} · CPC title

• B60L2240/12

  Speed · CPC title

• B62M6/50

  characterised by detectors or sensors, or arrangement thereof · CPC title

• B60T8/1706

  for single-track vehicles, e.g. motorcycles · CPC title

• B60T8/3225 Primary

  Systems specially adapted for single-track vehicles, e.g. motorcycles (B60T8/3235 takes precedence) · CPC title