Unlock instant, AI-driven research and patent intelligence for your innovation.

Lockup clutch control device for vehicle

A lock-up clutch and control device technology, which is applied in the transmission device, engine control, fluid transmission device, etc., can solve the problem of damage to the compressor blade and turbine blade of the exhaust turbocharger

Active Publication Date: 2013-02-27
ISUZU MOTORS LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Therefore, especially for an engine equipped with the above-mentioned variable capacity type exhaust turbocharger, if the noise such as impact sound is generated due to entering the above-mentioned fluctuation region or the degree of fluctuation becomes large, the exhaust turbocharger may be damaged. Damaged compressor blades or turbine blades

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lockup clutch control device for vehicle
  • Lockup clutch control device for vehicle
  • Lockup clutch control device for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0031] image 3 The overall structure of the power transmission device and its control device for a vehicle (automobile) according to an embodiment of the present invention is shown in image 3 In this power transmission device, an engine (diesel engine) 1 equipped with a variable-capacity exhaust turbocharger 200 described later, a fluid coupling 2, and a clutch 3 composed of a wet multi-plate clutch are connected in the axial direction. And transmission device 4 and constitute.

[0032] The output shaft 1 a of the engine 1 is connected to the pump 21 of the fluid coupling 2 , and the input shaft 32 of the clutch 3 is connected to the output side of the turbine 22 facing the pump 21 .

[0033] The output shaft 33 of the clutch 3 is connected to the input side of the transmission 4, and the output shaft 41 of the transmission 4 is connected to a wheel (not s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In a vehicle mounting an engine equipped with an exhaust turbocharger and a fluid transmission device as the power transmission device, occurrence of surging in the exhaust turbocharger is prevented at the time of connecting a lockup clutch in the fluid transmission device. When a condition for connecting the lockup clutch is held to lock up the fluid transmission device coupled to the engine 1 equipped with the exhaust turbocharger, the operation is executed by lowering a target engine rotational speed for a predetermined period of time prior to the locking up to avoid the occurrence of surging caused by a decrease in the engine rotational speed due to the lockup. A lockup clutch control device 50 includes first timer means 51 for setting a time for executing the operation by decreasing the target engine rotational speed, and second timer means 52 for setting a time for waiting for the start of lockup.

Description

technical field [0001] The present invention relates to a lock-up clutch control device for a vehicle, which performs lock-up clutch control and engine control for a vehicle, in which a speed change device is connected to a vehicle through a fluid transmission device such as a fluid coupling. On the output shaft of the engine equipped with the exhaust turbocharger, and on the above-mentioned fluid transmission device, a lock-up clutch directly connecting the pump of the above-mentioned fluid transmission device and the turbine is installed. Background technique [0002] Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2005-265050) filed by the applicant of the present invention discloses the following technology: a power transmission device, a clutch and a speed changer are connected to an exhaust turbocharger equipped with a hydraulic coupling On the output shaft of the engine, according to the connection and disconnection of the clutch, the transmi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/14F02D29/00
CPCF16H61/143F02D29/00F16H59/32
Inventor 岩男信幸田口修司
Owner ISUZU MOTORS LTD