JPS579352A - Speed ratio controller for stepless variable transmission - Google Patents

Speed ratio controller for stepless variable transmission

Info

Publication number
JPS579352A
JPS579352A JP8141280A JP8141280A JPS579352A JP S579352 A JPS579352 A JP S579352A JP 8141280 A JP8141280 A JP 8141280A JP 8141280 A JP8141280 A JP 8141280A JP S579352 A JPS579352 A JP S579352A
Authority
JP
Japan
Prior art keywords
valve
speed ratio
variable transmission
stepless variable
throttle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8141280A
Other languages
Japanese (ja)
Other versions
JPH023072B2 (en
Inventor
Tomio Oguma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP8141280A priority Critical patent/JPS579352A/en
Priority to US06/267,558 priority patent/US4466312A/en
Priority to DE3121160A priority patent/DE3121160A1/en
Publication of JPS579352A publication Critical patent/JPS579352A/en
Publication of JPH023072B2 publication Critical patent/JPH023072B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To enable an stepless variable transmission in a wide range by controlling a speed ratio control servo employing a followup type actuator according to a working signal based on a signal in response to the wheel velocity and the opening of the throttle.
CONSTITUTION: This stepless variable transmission includes a spherical transmission type speed ratio varying means to which an arm 210 of a speed ratio control servo is connected through a link. The servo 200 is imparted a line pessure PL of main pump 102 to control said speed ratio varying means with the longitudinal motion of an actuator 205 between L and H. A relief valve 120, a manual valve 130, a kickdown valve 140, a throttle valve 160, a governor valve 170 and a modulator valve 190 are arranged in a hydraulic circuit and aditionally, a hold valve 180 and a compensation valve 150. A hydraulic signal is produced in accordance with the proper speed ratio by response pessures to the throttle valve and the wheel velocity to operate an actuator 205.
COPYRIGHT: (C)1982,JPO&Japio
JP8141280A 1980-05-27 1980-06-18 Speed ratio controller for stepless variable transmission Granted JPS579352A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8141280A JPS579352A (en) 1980-06-18 1980-06-18 Speed ratio controller for stepless variable transmission
US06/267,558 US4466312A (en) 1980-05-27 1981-05-27 System for controlling transmission ratio of transmission for automotive vehicles
DE3121160A DE3121160A1 (en) 1980-05-27 1981-05-27 Control device for controlling the transmission ratio of a gearbox for a motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8141280A JPS579352A (en) 1980-06-18 1980-06-18 Speed ratio controller for stepless variable transmission

Publications (2)

Publication Number Publication Date
JPS579352A true JPS579352A (en) 1982-01-18
JPH023072B2 JPH023072B2 (en) 1990-01-22

Family

ID=13745618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8141280A Granted JPS579352A (en) 1980-05-27 1980-06-18 Speed ratio controller for stepless variable transmission

Country Status (1)

Country Link
JP (1) JPS579352A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702128A (en) * 1984-05-14 1987-10-27 Nissan Motor Co., Ltd. Ratio control system for continuously variable transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702128A (en) * 1984-05-14 1987-10-27 Nissan Motor Co., Ltd. Ratio control system for continuously variable transmission

Also Published As

Publication number Publication date
JPH023072B2 (en) 1990-01-22

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