GB904712A - Improvements in or relating to automatic drives - Google Patents

Improvements in or relating to automatic drives

Info

Publication number
GB904712A
GB904712A GB3469/59A GB346959A GB904712A GB 904712 A GB904712 A GB 904712A GB 3469/59 A GB3469/59 A GB 3469/59A GB 346959 A GB346959 A GB 346959A GB 904712 A GB904712 A GB 904712A
Authority
GB
United Kingdom
Prior art keywords
switch
gear
clutch
speed
servomotor
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.)
Expired
Application number
GB3469/59A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB904712A publication Critical patent/GB904712A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W30/00Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18Propelling the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2710/00Output or target parameters relating to a particular sub-units
    • B60W2710/02Clutches
    • B60W2710/021Clutch engagement state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2710/00Output or target parameters relating to a particular sub-units
    • B60W2710/10Change speed gearings
    • B60W2710/1005Transmission ratio engaged

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Controls For Constant Speed Travelling (AREA)

Abstract

904,712. Change-speed and clutch control. WEYMANN, C. T. Jan. 30, 1959 [Jan. 31, 1958], No. 3469/59. Class 80 (2). In an electro-pneumatic change-speed control in a motor vehicle having a main clutch 52 disengaged by a servomotor 54 energized by inlet manifold depression through an electromagnetic valve 56, and wherein the cross-shift and gear establishing movements of at least one conventional gear shift lever 9 are respectively effected by servomotors energized by inlet manifold depression, the gear establishing servomotor 1 is double-acting and comprises a spring- centred piston 25 which is connected to the gear lever 9 through spring-centring lost-motion means 17 permitting movement of the piston 25 beyond the positions corresponding to the extreme positions of the lever 9 and carries two cams 21, 22 arranged to open contacts 23 in the circuit of the valve 56, the distance between the cams 21, 22 being such that switch 23 is opened only after gear establishment. The cams 21, 22 are also arranged to open contacts 24 which when closed effect throttle closure. Control is manual, Fig. 1, or combined manual and speed-accelerator-responsive automatic, Fig. 2, and automatic engine-speed and accelerator-responsive starting control of the clutch may be provided. In Fig. 1, the shift lever 9 of a three-forward speed and one reverse change-speed gear is actuated by eyelet members 31 and 18 respectively connected to the pistons 28, 25, respectively, of a cross-shifting single-acting servomotor 2 energized through a solenoid valve 5 and the gear establishing double-acting servomotor 1 energized through solenoid valves 3, 4, through spring centring lost-motion means 17<SP>1</SP>, 17 permitting movement of the servomotor pistons beyond the extreme positions of the lever 9. The valves 3, 4, 5 are controlled by a manual selector switch 8 through relays 6, 7 and through contacts 37, 38 closed by cams 35, 35<SP>1</SP>, 36, 36<SP>1</SP> on the piston 28 which contacts permit gear establishment movement only after any necessary cross-shift. In Fig. 2 the manual selector switch 8 has also a position A for automatic change-speed control through an output speed responsive centrifugal switch 40 described in Specification 738,471. The switch 40 has two speed ranges A1, A2 selected by a change-over switch 42 dependent upon accelerator pedal position. With the manual switch 8 on A the main clutch 52 is disengaged and the throttle closed, irrespective of the accelerator pedal position, automatically, when the piston of the servomotor 1 is removed from either terminal position, the control contacts 23, 24 and the lost-motion means 17 being so arranged that clutch reengagement and re-instatement of accelerator pedal throttle control are effected only after gear establishment. The main clutch 52 is actuated by a conventional pedal 53 or by the servomotor 54 energized by inlet manifold depression through engagement rate adjusting means 55, described in Specification 859,519, dependent on clutch and accelerator member positions and through a solenoid valve 56. The valve 56 is controlled by the contact 23 and by a centrifugal switch 57 also described in Specification 859,519, which latter switch opens for clutch re-engagement only on increasing engine speed and therefore provides also an automatic starting control. The switch 57 may be disconnected by opening a switch 64, or the valve 56 may be actuated by a manual switch 58. The said throttle closure is effected against a spring 49 by a solenoid 50 energized through the contact 24. The gear change may be selectively controlled by the switch 8, using the studs I, II, III and AR (for reverse) whilst the clutch is automatically controlled by closing a switch 59; the gear change may be manually operated whilst the clutch is automatically controlled by setting the switch 8 to 0 and closing the switch 59; or operation may be completely manual by opening a master switch 61 or by setting the switch 8 to 0 and keeping contacts 58 and 59 open. In Fig. 3 (not shown), the servomotor 2 is double-acting to effect cross-shift for four forward speeds and one reverse.
GB3469/59A 1958-01-31 1959-01-30 Improvements in or relating to automatic drives Expired GB904712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR757252 1958-01-31

Publications (1)

Publication Number Publication Date
GB904712A true GB904712A (en) 1962-08-29

Family

ID=8705637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3469/59A Expired GB904712A (en) 1958-01-31 1959-01-30 Improvements in or relating to automatic drives

Country Status (2)

Country Link
DE (1) DE1405455A1 (en)
GB (1) GB904712A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837997A (en) * 2022-05-16 2022-08-02 浙江理工大学 Position-adjustable high-speed centrifugal pump inlet device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837997A (en) * 2022-05-16 2022-08-02 浙江理工大学 Position-adjustable high-speed centrifugal pump inlet device
CN114837997B (en) * 2022-05-16 2023-06-23 浙江理工大学 Position-adjustable high-speed centrifugal pump inlet device

Also Published As

Publication number Publication date
DE1405455A1 (en) 1968-10-03

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