Clutch connection/disconnection device for dual clutch transmission

Patent metadata

Field	Value
Publication number	US-10174796-B2
Application number	US-201515515556-A
Country	US
Kind code	B2
Filing date	Sep 29, 2015
Priority date	Sep 29, 2014
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A clutch-side transmission circuit transmits, from a clutch pedal, a restoring action of the depressed clutch pedal. A switching device connects a first clutch-side hydraulic circuit to the pedal-side hydraulic circuit when a shift lever SL is tilted forwards and connects a second clutch-side hydraulic circuit to the pedal-side hydraulic circuit when the shift lever SL is tilted rearwards. A first clutch is engaged in response to the restoring action of the clutch pedal being transmitted from the first clutch-side transmission circuit. A second clutch is engaged in response to the restoring action of the clutch pedal being transmitted from the second clutch-side transmission circuit.

First claim

The invention claimed is:

1. A clutch connection/disconnection device connected to an input side of a main transmission mechanism having a high-gear side path and a low-gear side path being switchable as a power transmission path, the clutch connection/disconnection device comprising:
a dual clutch including a first clutch and a second clutch;
a shift lever configured to move on a shifting path including a high-gear side shift position at one side and a low-gear side shift position at the other side, wherein the shift lever configured to move to the high-gear side shift position and the low-gear side shift position;
a clutch pedal configured to be depressed to move from a predetermined initial position;
a biasing device configured to bias the clutch pedal to return the clutch pedal to the initial position in response to releasing a depression of the clutch pedal;
a pedal-side transmission circuit for transmitting, from the clutch pedal, a restoring action in which the clutch pedal being depressed is returned to the initial position by the biasing device;
a first clutch-side transmission circuit for transmitting the restoring action to the first clutch;
a second clutch-side transmission circuit for transmitting the restoring action to the second clutch; and
a switching device configured to connect the first clutch-side transmission circuit to the pedal-side transmission circuit when the shift lever is moved to the high-gear side shift position and to connect the second clutch-side transmission circuit to the pedal-side transmission circuit when the shift lever is moved to the low-gear side shift position, and
wherein the first clutch is engaged to switch the power transmission path to the high-gear side path in response to the restoring action being transmitted from the first clutch-side transmission circuit, and
wherein the second clutch is engaged to switch the power transmission path to the low-gear side path in response to the restoring action being transmitted from the second clutch-side transmission circuit.

Assignees

• Isuzu Motors Ltd

Inventors

• Terashima Koji

Classifications

• F16D2500/31466

  Gear lever · CPC title

• B60K23/02

  for main transmission clutches · CPC title

• F16H59/04 Primary

  Ratio selector apparatus · CPC title

• F16H61/688

  with two inputs, e.g. selection of one of two torque-flow paths by clutches · CPC title

• F16D2048/023

  by pedal actuation · CPC title