Brake control device for saddle riding vehicle

Patent metadata

Field	Value
Publication number	US-2018201248-A1
Application number	US-201815871465-A
Country	US
Kind code	A1
Filing date	Jan 15, 2018
Priority date	Jan 18, 2017
Publication date	Jul 19, 2018
Grant date	—

Abstract

The pressure sensor functions as a first detection portion for detecting hydraulic pressure set according to operation of a brake pedal. The control unit detects the hydraulic pressure acting on the second piston portion through the pipe. The control unit controls differential pressure in the detected hydraulic pressure to a target value set according to vehicle speed.

First claim

1 . A brake control device for a saddle riding vehicle comprising:
a rear wheel brake operation element for operating a rear wheel brake; a master cylinder for generating hydraulic pressure according to operation of the rear wheel brake operation element; a first detection portion for detecting the hydraulic pressure generated according to the operation of the rear wheel brake operation element; a front wheel brake; and a flow passage configured to connect the master cylinder and the front wheel brake to each other, characterized in that a second detection portion for detecting the hydraulic pressure acting on the front wheel brake through the flow passage; and a control unit for controlling a difference in the hydraulic pressure to a target value, the difference in the hydraulic pressure being detected by the first and second detection portions, the target value being set according to vehicle speed of the saddle riding vehicle.

2 . The brake control device for a saddle riding vehicle according to claim 1 , wherein the control unit sets the target value to a smaller value as the vehicle speed is higher.

3 . The brake control device for a saddle riding vehicle according to claim 1 , wherein the control unit sets as the target value a value set according to an original vehicle speed with the rear wheel brake operation element operated.

4 . The brake control device for a saddle riding vehicle according to claim 1 ,
furthermore comprising an opening regulating valve for regulating an opening of the flow passage, wherein the control unit controls the opening of the opening regulating valve in order to set the difference in the hydraulic pressure to the target value.

5 . The brake control device for a saddle riding vehicle according to claim 4 , wherein the second detection portion specifies the hydraulic pressure acting on the front wheel brake through the flow passage based on the hydraulic pressure detected by the first detection portion and the opening of the opening regulating valve.

Assignees

• Honda Motor Co Ltd
• Bosch Gmbh Robert

Inventors

• Kaneta Hiroyuki
• Sawano Yoshiaki
• Kurata Hiroshi
• Nakamura Atsushi

Classifications

• B60T15/043 Primary

  controlling service pressure brakes (B60T15/048 takes precedence) · CPC title

• B60T13/18

  with control of pump output delivery {, e.g. by distributor valves (B60T13/167 takes precedence)} · CPC title

• B60T13/161

  Systems with master cylinder · CPC title

• B62L3/023

  acting on fluid pressure systems · CPC title

• B60T17/04

  Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses (traction couplings involving joints for supply lines, electric circuits, or the like B60D1/62; couplings peculiar to railway vehicles for, or combined with, couplings or connectors for fluid conduits or electric cables B61G5/06; pipes, cut-off valves, couplings, air hoses per se F16C, F16K, F16L) · CPC title