Controller and control method

Patent metadata

Field	Value
Publication number	US-12503084-B2
Application number	US-202218709115-A
Country	US
Kind code	B2
Filing date	Oct 27, 2022
Priority date	Nov 23, 2021
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A control method capable of improving operability of a motorcycle. In a controller and the control method according to the present invention, an execution section of the controller executes holding control for braking and holding a motorcycle without relying on a brake operation by a rider of the motorcycle at a stop of the motorcycle. The execution section switches a cancellation condition of the holding control between a first condition, under which the holding control is canceled on the basis of an output increase index value of a drive source (an engine) and connection state information of a clutch, and a second condition, under which the holding control is canceled not on the basis of the output increase index value but on the basis of the connection state information, according to a gradient of a road surface.

First claim

The invention claimed is:

1 . A controller ( 30 ) for controlling behavior of a motorcycle ( 1 ) that includes a drive source ( 11 ), a transmission ( 13 ) connected to the drive source ( 11 ) via a clutch ( 12 ), and a drive wheel ( 3 ) connected to the transmission ( 13 ), the controller configured to:
execute holding control for braking and holding the motorcycle ( 1 ) without relying on a brake operation by a rider of the motorcycle ( 1 ) at a stop of the motorcycle ( 1 ), switch a cancellation condition of the holding control between a first condition, under which the holding control is canceled on a basis of an output increase index value of the drive source ( 11 ) and connection state information of the clutch ( 12 ), and a second condition, under which the holding control is canceled not on the basis of the output increase index value but on the basis of the connection state information, according to a gradient of a road surface.

2 . The controller according to claim 1 , wherein
the controller switches the cancellation condition to the first condition in a case where the gradient is greater than a reference gradient, and switches the cancellation condition to the second condition in the case where the gradient is less than the reference gradient.

3 . The controller according to claim 2 , wherein
the controller changes the reference gradient on the basis of at least one of occupant information and loaded article information of the motorcycle ( 1 ).

4 . The controller according to claim 1 , wherein
the second condition includes a condition that the connection state information is information indicating that the clutch ( 12 ) is in an engaged state.

5 . The controller according to claim 1 , wherein
the second condition includes a condition that the connection state information is information indicating that the clutch ( 12 ) is in a half-clutch state.

6 . The controller according to claim 1 , wherein
the second condition includes a condition that the transmission ( 13 ) is not in a neutral state.

7 . The controller according to claim 1 , wherein
when canceling the holding control, the controller changes a degree of a reduction in a braking force generated to the motorcycle ( 1 ) on the basis of the gradient.

8 . The controller according to claim 1 , wherein
the output increase index value is a value that takes into account output of the drive source ( 11 ).

9 . The controller according to claim 1 , wherein
the drive source is an engine ( 11 ), and the output increase index value is a value that takes into account a throttle opening amount of the engine ( 11 ).

10 . A control method for behavior of a motorcycle ( 1 ) that includes a drive source ( 11 ), a transmission ( 13 ) connected to the drive source ( 11 ) via a clutch ( 12 ), and a drive wheel ( 3 ) connected to the transmission ( 13 ), the control method comprising:
executing holding control for braking and holding the motorcycle ( 1 ) by an execution section ( 32 ) of a controller ( 30 ) without relying on a brake operation by a rider of the motorcycle ( 1 ) at a stop of the motorcycle ( 1 ), wherein the execution section ( 32 ) switches a cancellation condition of the holding control between a first condition, under which the holding control is canceled on a basis of an output increase index value of the drive source ( 11 ) and connection state information of the clutch ( 12 ), and a second condition, under which the holding control is canceled not on the basis of the output increase index value but on the basis of the connection state information, according to a gradient of a road surface.

Assignees

• Bosch Gmbh Robert

Inventors

• Yamamoto Naoyuki

Classifications

• B60T2260/00

  Interaction of vehicle brake system with other systems · CPC title

• B60T2250/00

  Monitoring, detecting, estimating vehicle conditions · CPC title

• B60T2210/20

  Road shapes · CPC title

• B60T8/172

  Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters {(B60T8/17551 takes precedence)} · CPC title

• B60T8/171

  Detecting parameters used in the regulation; Measuring values used in the regulation · CPC title