CS247024B1 - Connection of the electric circuit for control gear ratio the hydrostatic drive in dependence of revolution of primary compression engine - Google Patents

Connection of the electric circuit for control gear ratio the hydrostatic drive in dependence of revolution of primary compression engine Download PDF

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Publication number
CS247024B1
CS247024B1 CS852493A CS249385A CS247024B1 CS 247024 B1 CS247024 B1 CS 247024B1 CS 852493 A CS852493 A CS 852493A CS 249385 A CS249385 A CS 249385A CS 247024 B1 CS247024 B1 CS 247024B1
Authority
CS
Czechoslovakia
Prior art keywords
diesel engine
hydrostatic drive
speed
primary diesel
gear ratio
Prior art date
Application number
CS852493A
Other languages
Czech (cs)
Other versions
CS249385A1 (en
Inventor
Jan Stefula
Jan Kramarik
Original Assignee
Jan Stefula
Jan Kramarik
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 Jan Stefula, Jan Kramarik filed Critical Jan Stefula
Priority to CS852493A priority Critical patent/CS247024B1/en
Publication of CS249385A1 publication Critical patent/CS249385A1/en
Priority to DE19863606258 priority patent/DE3606258A1/en
Publication of CS247024B1 publication Critical patent/CS247024B1/en

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Classifications

    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • 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
    • B60W10/101—Infinitely variable gearings
    • B60W10/103—Infinitely variable gearings of fluid type
    • 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
    • B60W30/00—Purposes 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
    • B60W30/18—Propelling the vehicle
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/465—Automatic regulation in accordance with output requirements for achieving a target input speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The object of the invention is to create, by simple means, a favourable control facility for obtaining a wider range in which the engine functions at maximum efficiency. The invention lies in the fact that a speed sensor (1) of a primary combustion engine is connected to the input of a forming element (2), the output of which is connected to the input of an integration element (3), that a further input of the integration element (3) is connected to the output of the indicator (4) of the maximum fuel feed for one revolution of an injection pump of the primary internal combustion engine, and that the output of the integration element (3) is connected to the input of a servo valve (5) of the hydrostatic drive. <IMAGE>

Description

Vynález sa týká zapojenia elektrického obvodu pre ovládáme převodového poměru · hydrostatického pohonu v závislosti od otáčok primárného vznětového motora.The invention relates to an electrical circuit for controlling the transmission ratio of a hydrostatic drive as a function of the speed of the primary diesel engine.

Doteraz sú známe dva spósoby ovládania převodového poměru hydrostatického pohonu. Jeden je mechanicko-tekutinový, u ktorého sa převodový poměr mění podl'a tlakového spádu na hydrostatickom odpore, cez ktorý preteká množstvo tekutiny priamoúmerne otáčkám primárnému vznětovému motoru. Nevýhodou tohto ovládania převodového poměru je změna tlakového spádu v závislosti od viskozity tekutiny, jej teploty a strata výkonu na hydraulickom odpore. Druhý sposob ovládania převodového poměru je založený na elektrickom principe. Signál pre převodový poměr je priamoúmerný otáčkám primárného vznětového motora. Nevýhodou tohto ovládania převodového poměru je v tom, že využívá maximálnu účinnost hydrostatického převodu iba pri maximálnych · otáčkách primárného vznětového motora.To date, two methods of controlling the transmission ratio of a hydrostatic drive are known. One is a mechanical-fluid, in which the transmission ratio varies according to the pressure drop on the hydrostatic resistor, through which a quantity of fluid flows proportionally to the speed of the primary diesel engine. The disadvantage of this gear ratio control is the change in pressure drop depending on the fluid viscosity, its temperature and the loss of power on the hydraulic resistance. The second way of controlling the transmission ratio is based on the electrical principle. The transmission ratio signal is proportional to the speed of the primary diesel engine. The disadvantage of this gear ratio control is that it utilizes the maximum efficiency of the hydrostatic transmission only at the maximum speed of the primary diesel engine.

Uvedené nevýhody odstraňuje riešenie podl'a vynálezu, ktorého podstata spočívá vo vytvoření nelineárnej závislosti signálu od otáčok, jeho časovej integrácie na signál pre vládanie převodového poměru ruhydriostatického' pohonu, ktorá je ešto riadená signálom od maximálnej dodávky paliva · na . · otáčku vstrekovacieho · čerpadla primárného · vznětového motora.The above-mentioned disadvantages are overcome by the solution according to the invention, which consists in creating a non-linear dependence of the signal on the speed, its time integration into the signal for controlling the transmission ratio of the ruhydriostatic drive. · Injection pump speed · Primary · Diesel engine.

Riešením pódia vynálezu sa dosiahne · najmenší převodový poměr pri nižších otáčkách primárného vznětového motora ako sú maximálně a tým hydrostatický převod pracuje pri maximálnej účinnosti v širšom vymedzenom otáčkovom rozsahu. Rovnoměrné zaťažovanie primárného vznětového motora sa dosiahne časovou integráciou signálu od otáčok. Riešenie podlá vynálezu zabezpečuje aj ochranu primárného vznětového motora proti preťaženiu pri změnách převodového poměru.The solution according to the invention achieves the lowest gear ratio at lower speeds of the primary diesel engine than maximum and thus the hydrostatic transmission operates at maximum efficiency over a wider limited speed range. Uniform loading of the primary diesel engine is achieved by time integration of the signal from the engine speed. The solution according to the invention also provides protection of the primary diesel engine against overload in the event of a gear ratio change.

Claims (2)

Zapojenie elektrického obvodu pre ovládáme převodového poměru hydrostatického pohonu v závislosti od otáčok primárného vznětového motora vyznačujúce sa tým, že snímač otáčok (lj primárného vznětového motora je spojený so vstupom tvarovacieho člena (2), jeho výstup je spojený so vstupom integračného člena (3], pričomThe electrical circuit for controlling the gear ratio of the hydrostatic drive is dependent on the speed of the primary diesel engine, characterized in that the speed sensor (1j of the primary diesel engine is connected to the input of the shaping member (2), its output is connected to the input of the integrating member (3). taking Příklad riešenia pódia vynálezu je znázorněný na pripojenom výkrese.An example of the solution according to the invention is shown in the attached drawing. Zapojenie elektrického obvodu pre ovládáme převodového poměru hydrostatického pohonu v závislosti od otáčok primárného vznětového motora 1, ktorý je spojený s tvarovacím členomConnection of the electric circuit for controlling the gear ratio of the hydrostatic drive in dependence on the speed of the primary diesel engine 1, which is connected to the forming member 2. Tvarovací člen 2 je spojený s integračným členom 3, ktorý je spojený -aj s indikátorom maximálnej dodávky paliva na otáčku vstrekovacieho čerpadla 4 · primárného vznětového motora a so servoventilom hydrostatického pohonu 5.2. The shaping member 2 is connected to an integrating member 3, which is connected to the maximum fuel supply indicator per revolution of the injection pump 4 of the primary diesel engine and the servo valve of the hydrostatic drive 5. Elektrický signál · od snímača · otáčok 1 primárného vznětového motora Je přivedený do tvarovacieho člena 2. Výstupný signál z tvarovacieho člena 2 je do minimálnych pracovných otáčok primárného vznětového motora, ktoré sú vačšie ako volnoběžné, nulový. Nad túto hodnotu otáčok lineárně narastá a maximálnu hodnotu dosiahne -pri otáčkách nižších · ako sú -maximálně. Sálej, až po maximálně otáčky Je konštantný· . a odpojevdá minimálnemu převodovému poměru. Signál s tvarovacieho člena 2 je přivedený do integračného člena 3, kde je časovo integrovaný, ale iba do velkosti vstupného signálu. Signál z integračného člena 3 je přivedený do servoventilu hydrostatického pohonu 5, pomocou ktorého sa mění převodový poměr hydrostatického pohonu. Do integračného člena 3 je ešte přivedený logický signál z indikátora maximálnej dodávky paliva na otáčku vstrekovacieho čerpadla· 4, ktorý blokuje integráciu pri · dosiahnutí maximálnej dodávky a uvolňuje integráciu pri nižších · dodávkách paliva · · ako je maximálna.The electrical signal from the primary diesel engine speed sensor 1 is applied to the shaping member 2. The output signal from the shaping member 2 is zero at the minimum operating speed of the primary diesel engine, which is greater than the idling speed. Above this, the speed increases linearly and reaches the maximum value at speeds lower than the maximum. Suck up to the maximum speed It is constant ·. and disconnects from the minimum gear ratio. The signal from the shaping member 2 is applied to the integrating member 3, where it is time integrated, but only to the size of the input signal. The signal from the integrator 3 is applied to the servo valve of the hydrostatic drive 5, by means of which the transmission ratio of the hydrostatic drive is changed. A logic signal from the maximum fuel delivery indicator per revolution of the injection pump 4 is also supplied to the integration member 3, which blocks integration when the maximum supply is reached and releases the integration at less than the maximum fuel supply. Zapojenie elektrického· obvodu · pre ovládáme převodového poměru hydrostatického pohonu v závislosti od otáčok primárného vznětového motora je možné použit pre. regulačně účely pohonu u · stavebných, · zemných, čestných a polnohospodárskych · strojov.Wiring the electrical circuit to control the gear ratio of the hydrostatic drive depending on the speed of the primary diesel engine can be used for. Regulatory purposes for propulsion in construction, earth, honest and agricultural machinery. VYNALEZU · .VYNALEZU ·. vstup · integračného člena · (3) je ešte · · spojený s výstupom · indikátora maximálnej · dodávky paliva na otáčku vstrekovacieho· čerpadla (4) primárného vznětového motora a výstup integračného člena (3) je spojený so vstupom servoventilu hydrostatického pohonu (5J.the input (3) of the integrator (3) is still connected to the output of the maximum fuel supply indicator per revolution of the injection pump (4) of the primary diesel engine and the output of the integrator (3) is connected to the inlet of the hydrostatic drive servo valve (5J).
CS852493A 1985-04-04 1985-04-04 Connection of the electric circuit for control gear ratio the hydrostatic drive in dependence of revolution of primary compression engine CS247024B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CS852493A CS247024B1 (en) 1985-04-04 1985-04-04 Connection of the electric circuit for control gear ratio the hydrostatic drive in dependence of revolution of primary compression engine
DE19863606258 DE3606258A1 (en) 1985-04-04 1986-02-27 Circuit arrangement of an electrical circuit for controlling the transmission ratio of a hydrostatic drive as a function of the speed of a primary internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS852493A CS247024B1 (en) 1985-04-04 1985-04-04 Connection of the electric circuit for control gear ratio the hydrostatic drive in dependence of revolution of primary compression engine

Publications (2)

Publication Number Publication Date
CS249385A1 CS249385A1 (en) 1985-10-16
CS247024B1 true CS247024B1 (en) 1986-11-13

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280757B1 (en) * 1987-03-06 1997-01-15 Michael Meyerle Control system for a continuously variable gearbox for motor vehicles
DE10350308B4 (en) * 2003-10-28 2011-06-22 ZF Friedrichshafen AG, 88046 Method for selecting engine speed and transmission ratio in a continuously variable hydrostatic power split transmission

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082013A (en) * 1974-11-22 1978-04-04 General Motors Corporation Hydrostatic transmission control
US4727490A (en) * 1984-03-07 1988-02-23 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Running control device on cargo handling vehicles

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CS249385A1 (en) 1985-10-16
DE3606258A1 (en) 1986-10-16

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