Clutch control device

Patent metadata

Field	Value
Publication number	US-9732810-B2
Application number	US-201514825763-A
Country	US
Kind code	B2
Filing date	Aug 13, 2015
Priority date	Aug 25, 2014
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

To allow a rider to sense torque in a low-speed traveling mode, a control device has a forward-and-reverse clutch oil pressure controller. In a low-speed traveling mode, the forward-and-reverse clutch oil pressure controller performs hunting control on driving torque, which is transmitted to a rear wheel from a crankshaft of an engine through a clutch device, a transmission, and a drive shaft, if vehicle speed stays within a second vehicle speed range for a predetermined time.

First claim

What is claimed is:

1. A clutch control device of a vehicle comprising:
a transmission having a plurality of gear trains between an input-side main shaft and an output-side counter shaft;
a clutch connecting and disconnecting power transmission between said transmission and an engine; and
a controller controlling connection and disconnection of said clutch, wherein
said controller
includes a low-speed traveling mode for performing control to maintain vehicle speed of said vehicle at a target vehicle speed, and
controls said clutch so that hunting, in which output torque outputted to said transmission from said clutch increases and decreases for a minute amount repeatedly, is performed during said low-speed traveling mode.

2. The clutch control device according to claim 1 , wherein:
a control amount of said clutch is a target oil pressure; and
said controller causes hunting in said output torque by adding a correction value to said target oil pressure at constant intervals.

3. The clutch control device according to claim 2 , wherein
said correction value is set to an amount that does not affect said vehicle speed, even when hunting is caused in said output torque.

4. The clutch control device according to claim 1 , wherein
said controller causes hunting in said output torque, if said vehicle speed stays within a predetermined vehicle speed range for a predetermined time period.

5. The clutch control device according to claim 2 , wherein
said controller causes hunting in said output torque, if said vehicle speed stays within a predetermined vehicle speed range for a predetermined time period.

6. The clutch control device according to claim 3 , wherein
said controller causes hunting in said output torque, if said vehicle speed stays within a predetermined vehicle speed range for a predetermined time period.

Assignees

• Honda Motor Co Ltd

Inventors

• Sakamoto Naoki

Classifications

• F16H61/702

  using electric or electrohydraulic control means · CPC title

• F16H2710/04

  Control dependent on speed · CPC title

• F16D2500/7044

  Output shaft torque · CPC title

• F16D48/06 Primary

  Control by electric or electronic means, e.g. of fluid pressure · CPC title

• F16D2500/70494

  Vehicle speed · CPC title