GB1312004A - Control systems - Google Patents

Control systems

Info

Publication number
GB1312004A
GB1312004A GB1941170A GB1941170A GB1312004A GB 1312004 A GB1312004 A GB 1312004A GB 1941170 A GB1941170 A GB 1941170A GB 1941170 A GB1941170 A GB 1941170A GB 1312004 A GB1312004 A GB 1312004A
Authority
GB
United Kingdom
Prior art keywords
variable
pressure
throttles
line
transmission
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
GB1941170A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Priority claimed from DE19691920859 external-priority patent/DE1920859C3/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1312004A publication Critical patent/GB1312004A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)
  • Control Of Transmission Device (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1312004 Hydrostatic transmission control ROBERT BOSCH GmbH 23 April 1970 [24 April 1969] 19411/70 Heading F2D [Also in Division F1] In a vehicle hydrostatic transmission control in which a lever 6 controlling a pressure-relief valve 11 in a line 10 e.g. from a feed pump 8 or an accumulator, sets the desired vehicle speed, the control of the engine fuel supply and the displacement of the transmission pump are controlled at optimum efficiency by hydraulic pistons 22, 17 in accordance with the pressuie P H1 and P H2 in lines 13, 13<SP>1</SP> between respective fixed, 14, 14<SP>1</SP>, and variable, 24, 19, throttles, the variable throttles being adjusted by the transmission high pressure p in a line 35 acting to move a spool 25 in opposite directions to maintain the product of the pressures P H1 and P H2 , and hence the vehicle speed, constant. The spool 25 may be replaced by an eccentrically mounted non-circular disc (36), Fig. 3 (not shown), turned by the pressure p to selectively uncover the throttles 24, 19. The transmission pump may be of the axial piston type. The motor may be non-variable or variable by the pressure P H in a line 12.
GB1941170A 1969-04-24 1970-04-23 Control systems Expired GB1312004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691920859 DE1920859C3 (en) 1969-04-24 Control device for a hydrostatic transmission and the internal combustion engine for vehicles that drives it

Publications (1)

Publication Number Publication Date
GB1312004A true GB1312004A (en) 1973-04-04

Family

ID=5732194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1941170A Expired GB1312004A (en) 1969-04-24 1970-04-23 Control systems

Country Status (5)

Country Link
US (1) US3609964A (en)
JP (1) JPS4936297B1 (en)
CH (1) CH508498A (en)
FR (1) FR2039090A5 (en)
GB (1) GB1312004A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841795A (en) * 1972-07-17 1974-10-15 Caterpillar Tractor Co Combined engine speed and pressure responsive control for variable displacement pumps
FR2247112A5 (en) * 1973-10-03 1975-05-02 Poclain Sa

Also Published As

Publication number Publication date
JPS4936297B1 (en) 1974-09-28
CH508498A (en) 1971-06-15
US3609964A (en) 1971-10-05
DE1920859B2 (en) 1976-04-15
DE1920859A1 (en) 1970-11-12
FR2039090A5 (en) 1971-01-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee