Clutch control device and hydraulic equipment control device

Patent metadata

Field	Value
Publication number	US-2021324924-A1
Application number	US-201917270062-A
Country	US
Kind code	A1
Filing date	Jul 2, 2019
Priority date	Aug 24, 2018
Publication date	Oct 21, 2021
Grant date	—

Abstract

This clutch control device includes an engine (13), a transmission (21), a clutch device (26) configured to connect and disconnect motive power transmission between the engine (13) and the transmission (21), a clutch actuator (50) configured to drive the clutch device (26) and change a clutch capacity, a hydraulic circuit (63) provided between the clutch device (26) and the clutch actuator (50), an air bleeding device (64) configured to perform air bleeding of the hydraulic circuit (63), a control unit (60) configured to calculate a control target value of the clutch capacity, a control mode changeover switch (59) configured to enable a control mode of the control unit (60) to be switched to an air bleeding mode, and an air bleeding switch (65) configured to enable a hydraulic pressure of the hydraulic circuit (63) to increase in the air bleeding mode.

First claim

What is claim is:

1 .- 8 . (canceled)

9 . A clutch control device comprising:
an engine; a transmission; a clutch device configured to connect and disconnect motive power transmission between the engine and the transmission; a clutch actuator configured to drive the clutch device and change a clutch capacity; a hydraulic circuit provided between the clutch device and the clutch actuator; an air bleeding device configured to perform air bleeding of the hydraulic circuit; a control unit configured to calculate a control target value of the clutch capacity; a control mode changeover switch configured to enable a control mode of the control unit to be switched to an air bleeding mode; and an air bleeding switch configured to enable a hydraulic pressure of the hydraulic circuit to increase in the air bleeding mode, wherein the clutch actuator stops an increase in the pressure when the hydraulic pressure has not increased to a predetermined first specified value within a predetermined specified time period in the air bleeding mode.

10 . The clutch control device according to claim 9 , wherein the clutch actuator maintains the hydraulic pressure after increasing the hydraulic pressure to a predetermined hydraulic pressure in the air bleeding mode.

11 . The clutch control device according to claim 10 , wherein the clutch actuator decreases the hydraulic pressure to a predetermined second specified value after increasing the hydraulic pressure to a predetermined first specified value in the air bleeding mode.

12 . The clutch control device according to claim 9 , wherein the control mode changeover switch enables the control mode of the control unit to be switched to an air bleeding completion check mode.

13 . The clutch control device according to claim 10 , wherein the control mode changeover switch enables the control mode of the control unit to be switched to an air bleeding completion check mode.

14 . The clutch control device according to claim 11 , wherein the control mode changeover switch enables the control mode of the control unit to be switched to an air bleeding completion check mode.

15 . The clutch control device according to claim 12 , wherein the control unit determines completion of air bleeding when the hydraulic pressure has increased from a predetermined first determination value to a predetermined second determination value within a predetermined check determination time period in the air bleeding completion check mode.

16 . The clutch control device according to claim 13 , wherein the control unit determines completion of air bleeding when the hydraulic pressure has increased from a predetermined first determination value to a predetermined second determination value within a predetermined check determination time period in the air bleeding completion check mode.

17 . The clutch control device according to claim 14 , wherein the control unit determines completion of air bleeding when the hydraulic pressure has increased from a predetermined first determination value to a predetermined second determination value within a predetermined check determination time period in the air bleeding completion check mode.

Assignees

• Honda Motor Co Ltd

Inventors

• Tsuzuki Ryohei
• Ono Junya
• Ryuzaki Tatsuya
• Uchisasai Hiroaki

Classifications

• F16D2048/0266

  Actively controlled valves between pressure source and actuation cylinder · CPC title

• F16D2048/0263

  Passive valves between pressure source and actuating cylinder, e.g. check valves or throttle valves · CPC title

• F16D2048/0257

  Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof · CPC title

• F16D48/02 Primary

  Control by fluid pressure · CPC title

• F16D25/12

  Details not specific to one of the before-mentioned types · CPC title