GB1249081A

GB1249081A – Transmission control system
– Google Patents

GB1249081A – Transmission control system
– Google Patents
Transmission control system

Info

Publication number
GB1249081A

GB1249081A
GB3289/70A
GB328970A
GB1249081A
GB 1249081 A
GB1249081 A
GB 1249081A
GB 3289/70 A
GB3289/70 A
GB 3289/70A
GB 328970 A
GB328970 A
GB 328970A
GB 1249081 A
GB1249081 A
GB 1249081A
Authority
GB
United Kingdom
Prior art keywords
valve
line
clutch
control system
clutches
Prior art date
1969-02-07
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.)

Expired

Application number
GB3289/70A
Inventor
William Charles Erdman
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.)

Doosan Bobcat North America Inc

Original Assignee
Clark Equipment Co
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.)
1969-02-07
Filing date
1970-01-23
Publication date
1971-10-06

1970-01-23
Application filed by Clark Equipment Co
filed
Critical
Clark Equipment Co

1971-10-06
Publication of GB1249081A
publication
Critical
patent/GB1249081A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

230000005540
biological transmission
Effects

0.000
title
abstract
2

230000000994
depressogenic effect
Effects

0.000
abstract
2

Classifications

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16H—GEARING

F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing

F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W10/00—Conjoint control of vehicle sub-units of different type or different function

B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W10/00—Conjoint control of vehicle sub-units of different type or different function

B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT

B60W10/00—Conjoint control of vehicle sub-units of different type or different function

B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems

Abstract

1,249,081. Variable speed gear. CLARK EQUIPMENT CO. 23 Jan., 1970 [7 Feb., 1969], No. 3289/70. Heading F2D. A vehicle transmission control system includes means (e.g. valve 54) actuated by the application of the brakes (e.g. brake lever 34 and valves 32 and 130) to disengage the drive if one of the two lowest ratios is engaged (e.g. clutch 24 or 26) but not if another ratio is engaged (e.g. reverse, or third or fourth, clutches 22, 28 or 30 respectively). The embodiment shown includes a gear ratio valve 58 from grooves 98 and 96 of which supply the clutches 24 and 26, and via a shuttle valve 126 pressurise a line 150 to the valve 130. This line is not pressurized in third or top gear. When the brake lever 34 is depressed, line 150 is connected to line 152, which when pressurized moves the valve 54 down, disconnecting a conduit 52 supplied by a pump 44 from the recess 66 connected when a direction control valve 56 is depressed via a line 81 to the forward clutch 20. The connection from the conduit 52 via a bore 82, a recess 80 and, when the valve 56 is raised, lines 86 and 88 to a reverse clutch 22 not being affected.

GB3289/70A
1969-02-07
1970-01-23
Transmission control system

Expired

GB1249081A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US79756569A

1969-02-07
1969-02-07

Publications (1)

Publication Number
Publication Date

GB1249081A
true

GB1249081A
(en)

1971-10-06

Family
ID=25171194
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3289/70A
Expired

GB1249081A
(en)

1969-02-07
1970-01-23
Transmission control system

Country Status (7)

Country
Link

US
(1)

US3559780A
(en)

JP
(1)

JPS506940B1
(en)

BE
(1)

BE745608A
(en)

CA
(1)

CA943092A
(en)

DE
(1)

DE2002512A1
(en)

FR
(1)

FR2035198A5
(en)

GB
(1)

GB1249081A
(en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4006805A
(en)

*

1975-06-30
1977-02-08
Clark Equipment Company
Clutches with bypass inching valve

JPS5286969U
(en)

*

1975-12-19
1977-06-29

1969

1969-02-07
US
US797565A
patent/US3559780A/en
not_active
Expired – Lifetime

1969-12-23
CA
CA070,682A
patent/CA943092A/en
not_active
Expired

1970

1970-01-21
DE
DE19702002512
patent/DE2002512A1/en
active
Pending

1970-01-23
JP
JP45005786A
patent/JPS506940B1/ja
active
Pending

1970-01-23
GB
GB3289/70A
patent/GB1249081A/en
not_active
Expired

1970-02-06
BE
BE745608D
patent/BE745608A/en
not_active
IP Right Cessation

1970-02-06
FR
FR7004366A
patent/FR2035198A5/fr
not_active
Expired

Also Published As

Publication number
Publication date

CA943092A
(en)

1974-03-05

BE745608A
(en)

1970-07-16

JPS506940B1
(en)

1975-03-19

FR2035198A5
(en)

1970-12-18

DE2002512A1
(en)

1970-09-03

US3559780A
(en)

1971-02-02

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