CN104812960A - 用于调节筑路机的内燃机的转速的方法和用于该方法的筑路机 - Google Patents

用于调节筑路机的内燃机的转速的方法和用于该方法的筑路机 Download PDF

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CN104812960A
CN104812960A CN201280076293.0A CN201280076293A CN104812960A CN 104812960 A CN104812960 A CN 104812960A CN 201280076293 A CN201280076293 A CN 201280076293A CN 104812960 A CN104812960 A CN 104812960A
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H.蒂德曼
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/007—Electric control of rotation speed controlling fuel supply
    • 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
    • B60W10/10—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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
    • 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
    • B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
    • B60W30/1882—Controlling power parameters of the driveline, e.g. determining the required power characterised by the working point of the engine, e.g. by using engine output chart
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
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    • 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
    • B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
    • B60W30/1886—Controlling power supply to auxiliary devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/002—Apparatus for preparing and placing the materials and for consolidating or finishing the paving
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • 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
    • F16H61/4035—Control of circuit flow
    • 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
    • F16H61/4148—Open loop circuits
    • 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
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/448—Control circuits for tandem pumps or motors
    • 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
    • F16H61/461—Automatic regulation in accordance with output requirements not involving a variation of the output capacity of the main pumps or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
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  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
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  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Road Paving Machines (AREA)
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  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

本发明涉及一种调节筑路机的内燃机转速的方法，该筑路机除了行驶驱动器外还具有连接在内燃机上的用于驱动工作设备的液压马达，并且其中，根据工作设备的当前功率需求调节转速，其特征在于，通过使用恒流泵运行液压马达并且通过用于有源工作设备的液压马达的流量控制阀减小当前待导出的剩余体积流，内燃机的转速在工作运行中自动地与之匹配。

Description

用于调节筑路机的内燃机的转速的方法和用于该方法的筑路机
本发明涉及一种按权利要求1前序部分所述的用于调节筑路机的内燃机的转速的方法和一种具有按权利要求7前序部分所述的具有内燃机的筑路机。
从DE 39 11 401 C1中已知，在摊铺机的实践中，试驾员手动地调整转速。在运输和转移行驶时，主要为行驶驱动器消耗柴油发动机的功率。由驾驶员通过柴油发动机的转速的连续调节考虑不同的行驶状况。当然对于铺筑工作运行，柴油发动机以额定转速运行。驾驶员一般不进行调节，因为他不知道实际的功率需求并且必须避免在中断期间需要的工作设备未供给以所需的功率。环境被噪音和废气不必要地破坏。此外，燃料也被不必要地浪费。
为了在摊铺机的运行中减小环境破坏和燃料消耗，而未对驾驶员的注意力要求，从DE 39 11 401 C1中已知，柴油发动机的转速在铺筑行驶运行中断期间与工作设备的功率需求自动地匹配。该匹配在此这样地进行，使得根据当前功率需求可以调节在额定转速和空转转速的两个极限值之间的中间转速值。转速通过调节装置与当前功率需求匹配。在铺筑-行驶运行中断中或之后借助调节装置立即匹配转速，而无需驾驶员对此的影响。在铺筑-行驶运行期间，柴油发动机的转速可以加速至额定转速并且保持不变。由噪音或废气对环境的影响被明显减少。
从WO 2010/006759A1中已知，为了铺筑路面特别是摊铺机的行驶驱动器，打夯机缘板和/或振动器的驱动器以恒定转速或频率运行，以便由摊铺机摊铺的路面不变样。若为此目的内燃机以恒定的转速运行，当然内燃机经常产生过多的能量。为了经济地运行摊铺机，提高或降低内燃机的转速，使得将对于铺筑情况需要用于保持转速或频率恒定的能量输入该待保持恒定的驱动器。例如用于运输路面材料的输送机和分料蜗杆的另外驱动器可以随着内燃机转速的变化而改变，因为它不会对所铺筑的路面造成影响。测量待保持恒定的驱动器的功率需求并且为此通过调节装置改变内燃机的转速，使得它产生用以补偿待恒定的驱动器的改变的能量需求的能量。在此缺点是，与负载有关的、内燃机的转速的变化通过至少一个驱动器保持几乎恒定而确定。内燃机的转速的提高或降低取决于需要多少能量，以便在变化的载荷中，例如上升或下降的落差中，待保持恒定的驱动器保持至少近似恒定。摊铺机的内燃机也在此经常产生过多能量，因为至少一个待保持近似恒定的驱动器的预设不利地限制与负载有关的、内燃机的调节转速。
因此，本发明所要解决的技术问题是提供一种用于调节筑路机的内燃机的转速的方法和一种用于该方法的筑路机，它们允许筑路机经济的运行。
该技术问题通过权利要求1和7的特征解决。
由此提供了一种方法和一种筑路机，其中，在铺筑工作运行中使内燃机的转速与有源工作设备的各当前功率需求自动地匹配。内燃机的转速调节为这样的转速，在该转速时用于驱动液压马达的恒流泵的剩余体积流减小。这种减小优选是这样的最小化，使得各个最高负载的工作设备的剩余体积流、即在该处流动的用于驱动的最大体积流几乎为零。
各当前最高的所需体积流可以用作相对于内燃机额定转速可实现的转速减小的量度。因此，内燃机形成可通过调节其转速来控制的实际流量调节器。发动机功率一般在较大的转速范围内是恒定的，因此可以改变转速。
行驶驱动器通过可独立自主地调节的液压泵供给。铺筑速度可与是否完全地或仅部分地利用与负载有关的节能度匹配。
流量控制阀与恒流泵结合的使用获得比使用调节泵更廉价的解决方案。恒流泵总是产生全部的体积流，因此不需要的剩余体积流必须通过阀导出。但按本发明，在此产生的损耗减小了，因此通过按本发明的能量优化措施克服了该缺点。
优选地，有源工作设备的流量控制阀连接在控制装置上，该控制装置与负载有关地改变剩余体积流，其中，通过调节内燃机转速可以将最高体积流变化为接近零的剩余体积流。然后，相关的流量控制阀例如是完全打开的。
本发明的其它设计方案从下列的说明和从属权利要求中得知。
下面根据附图中所示的实施例进一步阐述本发明。
图1示出用于调节筑路机的内燃机的转速的方框图。
如图1所示，本发明涉及一种用于调节筑路机，尤其是摊铺机、路面铣刨机等的内燃机1的转速的方法，该筑路机除了行驶驱动器2外还具有连接在内燃机1上的用于驱动工作设备的液压马达3。在摊铺机中，工作设备例如包括打夯机缘板、铺筑板的振动装置、用于待摊铺的材料的输送带和分料蜗杆，它们还可以设计成多件式或多次提供。
内燃机1的转速可以根据工作设备的当前功率需求调节，为此，内燃机1具有转速调节装置4。
液压马达3通过使用恒流泵5运行。恒流泵5总是产生用于内燃机的确定转速的全部体积流。恒定的体积流的高度通过内燃机1的转速调节。
因为恒流泵5总是产生全部体积流，所以对于各个待供给的液压马达3不需要的剩余体积流通过流量控制阀6导出。根据筑路机的铺筑工作运行，用于有源工作设备的液压马达3的流量控制阀6的当前待导出的剩余体积流现在按本发明被减小，为此，内燃机1的转速在铺筑工作运行期间自动地匹配。内燃机1的转速的提高或减小使得恒流泵5的体积流增大或减小。因此，通过调节内燃机1的转速，恒流泵5的体积流这样改变，从而能量优化地影响恒流泵5的剩余体积流。因此在铺筑工作运行中，内燃机1不再以额定转速运行，而是以与负载有关地调节形成并且与有源工作设备的功率需求有关的转速运行。功率需求或能量需求在此尤其是体积或转速需求。
为此设置控制装置7，该控制装置通过转速信号线路8对内燃机1的转速进行匹配。
匹配优选这样地进行，使得当前最高负载的并且随即具有最小的剩余体积流的工作设备的液压马达3的流量控制阀6预设用于内燃机1的转速调节的转速信号的调整设置。因此，能量优化可以通过内燃机1的转速调节进行，直至至少一个尤其是最小的剩余体积流接近零为止。其余的剩余体积流强制地随着该调节量变化并且同样被减小。因为用于不同的工作设备的液压马达3的能量需求在铺筑工作运行中是不同的，所以剩余流减小的量同样是不同的。控制装置7通过控制线路9调节流量控制阀6。
多个液压马达3的流量控制阀6的剩余体积流的减小可以按照主从结构方式连接，由此作为主动装置的当前最高负载的工作设备的液压马达3的流量控制阀6的剩余体积流确定转速信号的调整，作为从动装置的其它有源工作设备的液压马达3的流量控制阀6随之变化。
优选地，至少使各最高负载的工作设备的剩余体积流最小化或者将之设定为近似零。然后，最高的负载通过为之调节的内燃机1转速获得相关恒流泵5的全部体积流，而流量控制阀6还可以导出剩余体积流，但然后该剩余体积流至少被减小。由此经济地运行筑路机。
探测单独的工作设备的当前功率需求并且将其显示给控制装置7。借助通过数据线路11连接在控制装置7上的传感器10可以在铺筑工作运行期间不断地检测单独的有源工作设备的能量需求并且作为输入数据提供给控制装置7以便自动地与负载有关地使内燃机1的转速匹配。
提供一种用于行驶驱动器2的附加的液压泵12，以便可以与内燃机1的转速无关地调节行驶驱动器。通过控制线路13、14，控制装置7可以与内燃机1的转速的能量优化调节无关地调节行驶驱动器，因为内燃机1的转速在铺筑工作运行中相对其额定转速的能量优化的减小也给行驶驱动器2提供足以设定为可选择的行驶速度的功率。
为实施前述的方法提供一种筑路机，尤其是摊铺机，其具有用于驱动行驶驱动器2的内燃机1以及用于(未示出的)工作设备的多个液压马达3。此外，提供一种用于根据工作设备的当前功率需求调节内燃机1的转速的控制装置7的控制设备。
多个液压马达3中的每一个可通过被内燃机1驱动的恒流泵5运行，其全部体积流可分别通过流量控制阀6影响，控制设备的控制装置7作为连接元件连接在液压马达3的流量控制阀6和内燃机1的转速传感器之间并且具有匹配控制电路，该匹配控制电路与有源工作设备的液压马达3的流量控制阀6的当前待导出的剩余体积流的减小适配地提供转速信号。
用于做出选择的匹配控制电路可设计为，使得当前最高负载的并且随即具有最小的剩余体积流的工作设备的液压马达3的流量控制阀6预设用于调节内燃机1的转速的转速信号的调整设置。
匹配控制电路可以设计用于按主从结构方式连接多个液压马达3的流量控制阀6的剩余体积流的减小。

Claims (12)

1.一种用于调节筑路机的内燃机的转速的方法，所述筑路机除行驶驱动器外还具有连接在内燃机上的用于驱动工作设备的液压马达，其中，根据所述工作设备的当前功率需求调节转速，其特征在于，通过使用恒流泵运行液压马达，并且通过用于有源工作设备的液压马达的流量控制阀减小当前待导出的剩余体积流，所述内燃机的转速在工作运行中自动地与之匹配。
2.按权利要求1所述的方法，其特征在于，这样地进行匹配，使得当前最高负载的并且随即具有最小的剩余体积流的工作设备的液压马达的流量控制阀预设用于调节内燃机转速的转速信号的调整设置。
3.按权利要求2所述的方法，其特征在于，按主从结构方式连接多个液压马达的流量控制阀的剩余体积流的减小，由此作为主动装置的当前最高负载的工作设备的液压马达的流量控制阀的剩余体积流确定转速信号的调整，作为从动装置的其它有源工作设备的液压马达的流量控制阀随之变化。
4.按权利要求1至3之一所述的方法，其特征在于，至少使各最高负载的工作设备的剩余体积流最小化。
5.按权利要求1至4之一所述的方法，其特征在于，探测单独的工作设备的当前功率需求并且显示给控制设备。
6.按权利要求1至5之一所述的方法，其特征在于，所述行驶驱动器与内燃机的转速无关地运行。
7.一种筑路机，具有用于驱动行驶驱动器(2)的内燃机(1)以及用于工作设备的多个液压马达(3)并且具有用于根据工作设备的当前功率需求调节内燃机(1)的转速的控制装置(7)，其特征在于，所述多个液压马达(3)中的每一个均能通过能由内燃机(1)驱动的恒流泵(5)运行，所述恒流泵的全部体积流能分别通过流量控制阀(6)影响，所述控制装置(7)作为连接元件连接在液压马达(3)的流量控制阀(6)和内燃机的转速传感器(4)之间并且具有匹配控制电路，该匹配控制电路与用于有源工作设备的液压马达(3)的流量控制阀(6)的当前待导出的剩余体积流的减小协调适配地提供转速信号。
8.按权利要求7所述的筑路机，其特征在于，所述匹配控制电路设计用于做出选择，由此当前最高负载的并且随即具有最小的剩余体积流的工作设备的液压马达(3)的流量控制阀(6)预设用于调节内燃机(1)的转速的转速信号的调整设置。
9.按权利要求8所述的筑路机，其特征在于，所述匹配控制电路设计用于按主从结构方式连接多个液压马达(3)的流量控制阀(6)的剩余体积流的减小，由此，作为主动装置的当前最高负载的工作设备的液压马达(3)的流量控制阀(6)的剩余体积流确定转速信号的调整设置，作为从动装置的其它有源工作设备的液压马达(3)的流量控制阀(6)随之变化。
10.按权利要求7至9之一所述的筑路机，其特征在于，在所述控制装置(7)上连接有传感器(11)，所述传感器(11)显示单独的工作设备的当前功率需求。
11.按权利要求7至10之一所述的筑路机，其特征在于，所述控制装置(7)连接在由所述内燃机(1)驱动的行驶驱动器泵(12)上，以便与内燃机(1)的转速无关地将由所述行驶驱动器泵(12)供给的行驶驱动马达(2)调节为可选择的行驶速度。
12.按权利要求7至11之一所述的摊铺机，其特征在于，所述工作设备是铺筑板的打夯机和振动器、摊铺机的分料蜗杆和输送机。
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