JPS58135547U

JPS58135547U - Control device for hydraulically operated transmission for vehicles

Info

Publication number: JPS58135547U
Application number: JP3198482U
Authority: JP
Inventors: 西村　定徳
Original assignee: 本田技研工業株式会社
Priority date: 1982-03-09
Filing date: 1982-03-09
Publication date: 1983-09-12
Also published as: JPS6216520Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来装置の要部の回路図、第２図は本案装置を
適用する変速機の１例の線図、第３図は本案装置の１例
の油圧回路図、第４図及び第５図は夫々要部の変形例の
載断面図、第６図は油圧係合要素の降圧特性を示す線図
である。１・・・変速機、２・・・エンジン、Ｇｌ、　Ｇ２．　
Ｇ３・・・伝動系、ｃｌ、　ｃ２．　ｃ３・・・油圧係
合要素、Ｌｌ。Ｌ２．Ｌ４・・・給油路、ＬＤＩ、ＬＤ２・・・排油路
、１２・・・ガバナ弁、１３−１．１３−２・・・シフ
Ｉ・弁、１４・・・オリフィス、１５・・・制御弁、１
９・・・シフト弁の弁体、２０・・・調圧ばね、２１・
・・ばね正調節部材。第３図Ｃ１，溝相脣蕎→＼＼＼＼νｌ　　　　。７Fig. 1 is a circuit diagram of the main parts of the conventional device, Fig. 2 is a line diagram of an example of a transmission to which the present device is applied, Fig. 3 is a hydraulic circuit diagram of an example of the proposed device, and Figs. FIG. 5 is a cross-sectional view of a modified example of the main parts, and FIG. 6 is a line diagram showing the pressure reduction characteristics of the hydraulic engagement element. 1...Transmission, 2...Engine, Gl, G2.
G3...Transmission system, cl, c2. c3... Hydraulic engagement element, Ll. L2. L4...Oil supply path, LDI, LD2...Oil drain path, 12...Governor valve, 13-1.13-2...Shiff I/valve, 14...Orifice, 15...Control valve, 1
9... Valve body of shift valve, 20... Pressure regulating spring, 21...
・Spring correct adjustment member. Figure 3 C1, groove phase 脣蕎→＼＼＼＼νl. 7

Claims

[Scope of utility model registration request]

A throttle valve that generates a throttle pressure according to the throttle opening of the engine, a governor valve that generates a governor pressure according to the vehicle speed, and a shift valve that inputs the throttle pressure and the governor pressure as mutually opposing control signals. The hydraulic engagement element intervened in the transmission system of the transmission by the shift valve can be switchably connected to an oil supply path and an oil drain path leading to a hydraulic source, and an orifice is connected to the oil drain path and an orifice is connected in parallel thereto. This is a control device for a hydraulically operated transmission for a vehicle, in which a control valve that is opened in a low opening range depending on the throttle opening of the engine is interposed between the control valve and the control valve that is opened in a low opening range according to the throttle opening of the engine. In a type of valve in which the spring pressure applied to the pressure valve body is varied according to the throttle opening with a spring adjustment member that responds to the throttle opening of the engine, the control valve is 1. A control device for a hydraulically operated transmission for a vehicle, characterized in that the correct adjustment member is a valve having a valve body.