Brake control device and brake system

Patent metadata

Field	Value
Publication number	US-11142279-B2
Application number	US-201916255423-A
Country	US
Kind code	B2
Filing date	Jan 23, 2019
Priority date	Jan 24, 2018
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A brake control device includes an electronic controller that controls a brake unit configured to brake a rotation body of a human-powered vehicle. The electronic controller limits ABS control in a case where a first predetermined condition for executing ABS control and a second predetermined condition for limiting ABS control are satisfied. The second predetermined condition is set based on limitation information that differs from information related to a traveling speed of the human-powered vehicle.

First claim

What is claimed is:

1. A brake control device comprising:
an electronic controller configured to control a brake unit configured to brake a rotation body of a human-powered vehicle,
the electronic controller being further configured to:
determine whether a first predetermined condition and a second predetermined condition are each satisfied,
execute an ABS control when the first predetermined condition is satisfied, the ABS control configured to control the brake unit to adjust a braking force acting on the rotation body,
limit the ABS control when both the first predetermined condition for executing the ABS control and the second predetermined condition for limiting the ABS control are satisfied, and
determine whether the first predetermined condition is satisfied based on different information than that used to determine whether the second predetermined condition is satisfied,
the second predetermined condition being set based on limitation information that differs from information related to a traveling speed of the human-powered vehicle, and
the electronic controller being configured to determine whether the second predetermined condition is satisfied based on at least one selected from the group consisting of: a relationship between a cadence input to a crank of the human-powered vehicle and a predetermined cadence, a relationship between a power input to the crank and a predetermined power, a relationship between a torque input to the crank and a predetermined torque, a relationship between a slip angle of the human-powered vehicle and a predetermined slip angle, a relationship between a steering angle of the human-powered vehicle and a predetermined steering angle, a relationship between a lateral load of the human-powered vehicle and a predetermined lateral load, a relationship between a yaw angle of the human-powered vehicle and a predetermined yaw angle, a relationship between a roll angle of the human-powered vehicle and a predetermined roll angle, a relationship between a pitch angle of the human-powered vehicle and a predetermined pitch angle, a relationship between a vertical load of the human-powered vehicle and a predetermined vertical load, a friction coefficient of a road surface, weather of a traveling environment of the human-powered vehicle, an amplitude of the road surface, a state of charge of a battery of the human-powered vehicle, a detected abnormality of a component of the human-powered vehicle, an air pressure of a tire of the human-powered vehicle, whether the tire is flat, a thickness of a friction member of the brake unit, a detected condition of a rider of the human-powered vehicle, a total weight of the human-powered vehicle, and a vehicle body specification of a component of the human-powered vehicle.

2. The brake control device according to claim 1 , wherein
the electronic controller is configured to limit the ABS control by not executing the ABS control when both the first predetermined condition and the second predetermined condition are satisfied.

3. The brake control device according to claim 1 , wherein
the electronic controller is configured to execute the ABS control without adding a limitation when the first predetermined condition is satisfied and the second predetermined condition is not satisfied.

4. The brake control device according to claim 1 , wherein
the electronic controller is configured to determine whether the second predetermined condition is satisfied based on at least one selected from the group consisting of: the relationship between the cadence input to the crank and the predetermined cadence, the relationship between the power input to the crank and the predetermined power, and the relationship between the torque input to the crank and the predetermined torque.

5. The brake control device according to claim 4 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the cadence input to the crank is greater than or equal to the predetermined cadence.

6. The brake control device according to claim 4 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the power input to the crank is greater than or equal to the predetermined power.

7. The brake control device according to claim 4 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the torque input to the crank is greater than or equal to the predetermined torque.

8. The brake control device according to claim 1 , wherein
the electronic controller is configured to determine whether the second predetermined condition is satisfied based on the relationship between the steering angle of the human-powered vehicle and the predetermined steering angle.

9. The brake control device according to claim 8 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the steering angle is greater than or equal to the predetermined steering angle.

10. The brake control device according to claim 1 , wherein
the electronic controller is configured to determine whether the second predetermined condition is satisfied based on the relationship between the slip angle of the human-powered vehicle and the predetermined slip angle.

11. The brake control device according to claim 10 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the slip angle is greater than or equal to the predetermined slip angle.

12. The brake control device according to claim 1 , wherein
the electronic controller is configured to determine whether the second predetermined condition is satisfied based on the relationship between the lateral load of the human-powered vehicle and the predetermined lateral load.

13. The brake control device according to claim 12 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the lateral load is greater than or equal to the predetermined lateral load.

14. The brake control device according to claim 1 , wherein
the electronic controller is configured to determine whether the second predetermined condition is satisfied based on the relationship between the yaw angle of the human-powered vehicle and the predetermined yaw angle.

15. The brake control device according to claim 14 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the yaw angle is greater than or equal to the predetermined yaw angle.

16. The brake control device according to claim 1 , wherein
the electronic controller is configured to determine whether the second predetermined condition is satisfied based on the relationship between the roll angle of the human-powered vehicle and the predetermined roll angle.

17. The brake control device according to claim 16 , wherein
the electronic controller is configured to determine the second predetermined condition is satisfied when the roll angle is greater than or equal to the predetermined roll angle.

18. The brake control device according to claim 1 , wherein
the electronic controller is configured to determine whether the second predetermined condition is satisfied based on the relationship between the pitch angle of the human-powered vehicle and the predetermined pitch angle.

19. The brake control device according to claim 18 , wherein
the electronic controller is config

Assignees

• Shimano Kk

Inventors

• Takahashi Toshihiko
• Fukuda Masahiko
• Takayama Hitoshi
• Nago Daisuke
• Nakakura Masahiro
• Nakajima Takehiko

Classifications

• B62L1/00 Primary

  Brakes {(back-pedalling brakes B62L5/00)}; Arrangements thereof · CPC title

• B62J45/4152

  for sensing longitudinal inclination of the cycle · CPC title

• B62J45/41

  characterised by the type of sensor · CPC title

• B62J43/13

  on rider-propelled cycles with additional electric propulsion · CPC title

• B60T8/1706 Primary

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