EP1884635B1 - Dispositif d'entraînement pour un véhicule utilitaire industriel ou agricole et procédé de fonctionnement d'un dispositif d'entraînement - Google Patents

Dispositif d'entraînement pour un véhicule utilitaire industriel ou agricole et procédé de fonctionnement d'un dispositif d'entraînement Download PDF

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Publication number
EP1884635B1
EP1884635B1 EP07113712.9A EP07113712A EP1884635B1 EP 1884635 B1 EP1884635 B1 EP 1884635B1 EP 07113712 A EP07113712 A EP 07113712A EP 1884635 B1 EP1884635 B1 EP 1884635B1
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EP
European Patent Office
Prior art keywords
electric machine
drive device
fan
internal combustion
generator
Prior art date
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Application number
EP07113712.9A
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German (de)
English (en)
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EP1884635A3 (fr
EP1884635A2 (fr
Inventor
Joachim Sobotzik Dr.
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Deere and Co
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Deere and Co
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Publication of EP1884635A2 publication Critical patent/EP1884635A2/fr
Publication of EP1884635A3 publication Critical patent/EP1884635A3/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/08—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of non-mechanically driven auxiliary apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers

Definitions

  • the invention relates to a drive device for an agricultural or industrial utility vehicle.
  • the drive device comprises an internal combustion engine, a radiator of a cooling circuit, a generator and a fan. Air can be moved through the radiator with the fan.
  • the fan is located adjacent to the radiator.
  • the fan, the internal combustion engine and the radiator are arranged in an engine compartment. Accordingly, the fan could be arranged between the radiator and the internal combustion engine or on the side facing away from the engine of the radiator. In the latter case, the fan could be driven by a shaft passing through the radiator at one location.
  • the generator is mechanically drivable by the internal combustion engine.
  • the generator is mechanically drivable by a side of the internal combustion engine facing the radiator. With the generator electrical energy or electrical power can be generated.
  • the present invention relates to a method for operating a drive device.
  • Drive devices of the type mentioned are known from the prior art, in particular from the field of passenger vehicles. Furthermore, these drive devices are common in agricultural or industrial commercial vehicles, where, however, high mechanical performance must be applied at low speeds, for example in field work with a tractor or earthworks with construction equipment. Accordingly, it is necessary that with the help of the fan always a sufficient amount of air is moved through the radiator. Therefore, the performance of the fan drive is too high dimensioned so that even at low speeds, the engine is sufficiently cooled.
  • the JP 11 241368 A and the JP 2000 203274 A each show a cooling system of a construction machine. There are two fans, one of the fans is driven by an electric motor and the electric motor is powered by a generator.
  • the US Pat. No. 5,415,134 shows an engine cooling system in which the cooling fan can be operated by a DC motor, regardless of the rotation of the internal combustion engine.
  • the DC motor can also be operated as a DC generator.
  • the JP 63 186910 A shows a generator with an engine that includes a cooling system.
  • the engine drives an alternator.
  • the generator supplies DC power to a DC motor via a rectifier, which drives a cooling fan.
  • US2005 / 0284423 shows an engine cooling system in which the cooling fan is operated depending on the power of another consumer.
  • DE3043477 and EP1241358 show engine cooling systems with adjustment of the speed of the electric machine depending on the power requirements of other electrical loads.
  • radiator fans that is fans for radiators or for air-coolant heat exchangers
  • an internal combustion engine usually has a belt drive on a side facing the radiator.
  • the drive of the fan via a belt or similar means purely mechanical, the cooler always has a speed due to the direct belt coupling, which is dependent on the speed of the engine.
  • An adaptation of the fan speed such that the fan is operable at a speed which is adapted to the current requirements for the cooling capacity of the radiator is not readily possible in this case.
  • the present invention is therefore an object of the invention to provide a drive device and a method for operating a drive device of the type mentioned and further, by which the aforementioned problems are overcome.
  • the fan should be operable at a speed which is adapted to the current requirements for the cooling capacity of the radiator or the cooling system of the internal combustion engine and thus is independent of the speed of the internal combustion engine adjustable.
  • a drive device of the type mentioned above is characterized in that at least one electrical load of an attachable to the vehicle implement is electrically powered by the generator and a controlled by a control unit power electronics unit is provided with the power electronics unit, the direction of rotation and / or speed and / or the torque of the electric machine is controllable in dependence on the power requirement of the at least one electrical load of the attachable working device.
  • cooling fans in vehicles serve to generate the air mass flow necessary for heat removal from the radiator or cooler package.
  • the design of the systems is based on the so-called worst case, ie the operation of the vehicle under high load at low speeds and ambient temperatures.
  • the radiator fans are mechanically driven by a belt drive from the crankshaft of the vehicle.
  • To reduce the drive power is often a so-called viscous coupling, so an element used for temperature-dependent speed position.
  • the speed setting can be done exclusively in the direction of "reduction”, ie the speed of the fan is directly dependent on the speed of the engine or lower or zero, if the visco-clutch is disengaged. This is based on the functional principle of producing viscous slip.
  • Another possibility is the use of electromagnetically actuated clutches.
  • Electric fan drives are used in the automotive sector. These are available both in two-point controller version (on / off) and as speed-controlled drives in vehicles with high cooling capacity requirements. Electric fan drives are therefore also an interesting alternative for commercial vehicles.
  • the fan drive power required for these vehicles is approx. 5-10% of the nominal rated engine output and has considerable requirements for installation space and costs.
  • the direct drive design i.e., the fan motor drives the fan without the intermediate gearbox
  • the conventional alternator ie, the conventional electric generator
  • the conventional alternator is also driven via a belt drive from the engine output driven pulley, and thus is disposed in a region in the engine compartment provided at or adjacent to the radiator side of the engine.
  • the generator for generating the electric current is therefore mechanically driven by a side of the internal combustion engine that faces the radiator. This could for example be in the form of a crankshaft generator, as in the DE 10 2004 052 023 is described. There, the generator is arranged on the side facing the internal combustion engine transmission facing side of the engine.
  • the rotor of the generator is driven by the crankshaft of the internal combustion engine, with which also the transmission and the traction drive is driven.
  • the crankshaft generator described therein comprises an asynchronous machine which generates three-phase current of a frequency that is dependent on the currently present rotational speed of the internal combustion engine. This three-phase current is converted into direct current by means of an AC / DC converter and fed to a DC intermediate circuit. If an electric machine is to be operated with alternating or three-phase current, a DC / AC converter should be provided between the DC intermediate circuit and the electrical machine, with in which the direct current can be converted into alternating or three-phase current of predefinable frequency.
  • the electric machine With at least a portion of the current generated by the generator then the electric machine can be driven, which in turn mechanically drives the fan.
  • the electric machine is arranged at an area in the engine compartment, which is provided on or spatially adjacent to the cooler side facing the engine. Specifically, this could be where the conventional alternator of the vehicle is usually mounted. Further details follow below.
  • the electric machine could have an output shaft, via which the fan is mechanically drivable.
  • the rotor of the electric machine is rigidly connected to the output shaft.
  • the electric machine is arranged in the engine compartment such that the output shaft of the electric machine is arranged in a region of the engine compartment which has a mechanical output of the internal combustion engine.
  • a mechanical drive could for example be a free crankshaft end of the internal combustion engine, which could have a pulley.
  • the pulley usually drives the radiator fan, a coolant pump, an engine or transmission oil pump, an alternator for generating electrical energy and / or a compressed air compressor.
  • the mechanical drive shaft of the fan is arranged in a region of the pulley of the internal combustion engine, but the fan is not of the belt is driven directly from the internal combustion engine, the electric machine and its output shaft is expediently arranged in this area, so that the fan can be mechanically driven by the electric machine.
  • the concept according to the invention can be realized while maintaining the usual and proven configuration in the engine compartment. Accordingly, it is not necessary to change the internal combustion engine in terms of additional or modified mechanical output. Furthermore, the mounting location of the radiator and the fan and the other auxiliary equipment can remain unchanged.
  • the electric machine could be located at a building site on the internal combustion engine, where conventionally a conventional alternator is provided. Since the fan can be driven mechanically by the electric machine and thus the generator mechanically driven there usually is not operated as a mechanical consumer, this space which has become free can be used in the case of the drive device mentioned above for the electric machine. This is also advantageous because - as already mentioned - the basic arrangement of the other components in the engine compartment does not need to be changed.
  • further consumers are mechanically drivable with the electric machine, for example a compressed air compressor.
  • the electric machine for example a compressed air compressor.
  • consumers come into question, which are likewise to be operated depending on the current or currently available power requirement of the vehicle.
  • a power electronic unit controlled by a control device which power electronic components has and with which the direction of rotation, speed and / or torque of the electric machine can be controlled.
  • control strategies are described with which the components of the vehicle and in particular the fan can be controlled or regulated.
  • the rotational speed and / or the torque of the electric machine can be controlled as a function of the coolant temperature of the cooling circuit, optionally of a further cooling circuit. If the coolant temperature is higher, the fan speed will increase accordingly. This makes possible an appropriate control and regulation adapted to the currently existing load state of the cooling system of the vehicle.
  • the speed and / or the torque of the electric machine could be controllable in dependence on the oil temperature of the internal combustion engine, the drive train and / or a vehicle hydraulic system. This enables a demand-controlled and / or closed-loop control adapted to the currently existing load state of the internal combustion engine and / or the drive train or the components of the vehicle hydraulic system.
  • the rotational speed and / or the torque of the electric machine can be controlled as a function of the power requirement of further electrical consumers of the vehicle, for example an air conditioning system.
  • a corresponding control of the generator can be included.
  • the electric power supplied to the fan could be reduced if another electrical load is to be supplied and the coolant temperature of the cooling circuit permits this.
  • An agricultural utility vehicle may be, for example, a tractor.
  • An example of a working implement is a drill or a seeder.
  • the rotational speed and / or the torque of the electric machine could be controllable in dependence on the demand of a pneumatic compressor.
  • a control of the rotational speed and / or the torque of the electric machine as a function of the temperature of the coolant of a secondary cooling circuit is conceivable. This is of particular interest when the fan moves air through a cooler of the secondary cooling circuit.
  • the rotational speed and / or the torque of the electric machine could be controllable as a function of the temperature of a charge air cooler and / or the coolant temperature of a cooling circuit with which the charge air cooler can be cooled.
  • the operating temperature of the power electronics or the power electronics unit could be taken into account, so that the speed and / or torque of the electric machine in response to the temperature of the power electronics can be controlled.
  • At least one temperature sensor is provided, which is arranged such that the temperature of a component or a coolant or an oil is detectable.
  • the temperature sensor generates a signal which can be transmitted to a control device.
  • the fan is driven by a flexible means of the electric machine.
  • the fan could have a pulley and be arranged or fixed spatially in the engine compartment of the vehicle such that the pulley of the fan is arranged such that it also - for example by means of a belt - via a pulley of the crankshaft of the internal combustion engine by means of a belt - quasi conventional - would be drivable.
  • the fan could be mounted unchanged and on the usually provided conventional cultivation location.
  • the fan is not driven by a belt over the pulley of the engine, but for example via a belt which is driven by a pulley of the electric machine.
  • the belt drive of the internal combustion engine for, for example, the water and / or oil pump is to be modified in such a way that the fan is no longer driven by this belt drive.
  • the electric machine can be mounted and it is to provide a belt drive to drive the fan, provided that the generator provided for operating the electric machine is mounted at a different location.
  • the flexible means could comprise a belt, a V-belt, V-ribs, a toothed belt or a chain.
  • an intermediate gear is arranged between the electric machine and the fan.
  • the electric machine With such an intermediate gear, with which the gear ratio of the rotational speed generated by the electric machine to the output to the fan speed adjusted and / or changed, the electric machine can be operated at a higher speed and the fan at a lower speed. Since the cost of a direct-driving, ie on fan speed electric machine (with correspondingly lower speed) are higher than that of a machine of the same power at a higher speed level, can by combining an electric machine at high speed in conjunction with an intermediate or transmission gear a cost reduction can be achieved.
  • the gear ratio could here - as well as in a pure belt drive of the fan of the electric machine with given Gear ratio - in similar areas as in the alternator, ie about 1: 3 to 1: 4.
  • the resulting relatively high speeds lead advantageously to a compact machine design and corresponding to a direct drive reduced costs for the electric motor. Since the rotational speeds and the size of the rotating parts within the machine are approximately equal to those of an alternator, no disadvantage in terms of the life is expected.
  • the generator could have an AC generator, in particular an asynchronous machine.
  • a DC-DC converter could be provided, with which the AC voltage generated by the generator can be converted into DC voltage.
  • the converted DC voltage could be fed to a DC intermediate circuit.
  • the power electronics unit associated - be provided with which the DC voltage (for example, the DC link) is converted into AC voltage such that the electric machine is operable at a variable predetermined speed. This speed can then be selected such that the expected, generated by the fan air movement through the cooler provides a predetermined, currently required cooling capacity. Finally, the speed of the electric machine can be commanded according to at least one of the above-mentioned drive strategies.
  • the inventive method is used to operate a drive device for an agricultural or industrial utility vehicle.
  • the drive device comprises an internal combustion engine, a radiator of a cooling circuit, a generator and a fan.
  • the fan moves air through the radiator.
  • the fan is located adjacent to the radiator.
  • the fan, the The internal combustion engine and the radiator are arranged in an engine compartment.
  • the generator is mechanically driven by the internal combustion engine.
  • the generator is mechanically driven by a side other than the radiator facing side of the engine.
  • the generator generates electrical energy.
  • an electrical machine is provided, which is driven by the electrical energy generated by the generator and with which the fan is mechanically driven.
  • the method for operating a drive device according to one of claims 1 to 20 is provided.
  • the method could have the appropriate control or regulation steps, as described with the claims 8 to 13 together with the associated description part.
  • the inventive method and / or its preferred embodiments includes method steps for operating the components of claims 1 to 20, wherein the method steps will be apparent to those skilled in the knowledge of the disclosure content of the drive device part of the present application. Therefore, to avoid repetition, reference is made to the preceding part of the description and to the corresponding claims.
  • the sole FIGURE shows a drive device 10 according to the invention for an agricultural utility vehicle, namely a tractor (not shown).
  • the drive device 10 comprises an internal combustion engine 12, a radiator 14 of a cooling circuit 16, a generator 18 and a fan 20.
  • the internal combustion engine 12, the radiator 14 and the generator 18 are arranged in a dashed line indicated engine compartment 15 of the tractor.
  • the cooling circuit 16 conveys coolant of the cooling circuit of the internal combustion engine 12 through the radiator 14. Accordingly, in the schematic illustration with the cooling circuit 16, only the connecting lines are marked.
  • the fan 20 air is moved through the radiator 14, which is indicated by the arrows 22. Since the fan 20 is arranged between the radiator 14 and the internal combustion engine 12, the fan 20 sucks in air from the side of the internal combustion engine 12 facing away from the radiator 14.
  • the generator 18 is mechanically driven by the crankshaft 24 of the internal combustion engine 12.
  • the generator 18 is arranged on the side facing away from the radiator 14 of the internal combustion engine 12.
  • the generator 18 is in the form of a crankshaft generator. With the generator 18 electrical energy is generated.
  • an electric machine 26 is provided, which can be driven by the electrical energy generated by the generator 18.
  • the electric machine 26 in turn drives the fan 20 mechanically.
  • the electric machine 26 has an output shaft 28, via which the fan 20 is mechanically drivable.
  • the electric machine 26 is arranged in the engine compartment 15 such that the output shaft 28 of the electric machine 26 is arranged in a region of the engine compartment 15 which has a mechanical output 30 of the internal combustion engine 12.
  • the mechanical output 30 is a free crankshaft end of the internal combustion engine 12, which has a pulley 32.
  • the electric machine 26 is disposed at a location on the engine 12, where usually a conventional alternator is provided.
  • a power electronics unit 36 is provided.
  • the power electronics unit 36 is supplied to the electric power generated by the generator 18 via the power line 40.
  • the power electronics unit 36 is driven by a control device 38.
  • the control device 38 in turn controls the power electronics unit 36 in such a way that the direction of rotation and / or the rotational speed and / or the torque of the electric machine 26 can be controlled.
  • the electrical current required to operate the electrical machine 26 is conducted via the power line 42.
  • a temperature sensor 44 is provided with which the temperature of the coolant of the cooling circuit 16 can be detected.
  • the temperature sensor generates electrical signals which are dependent on the detected temperature and which are supplied to the control device 38 via the line 46. It is a driving strategy provided such that the rotational speed of the electric machine 26 in dependence on the coolant temperature of the cooling circuit 16 is controllable.
  • the oil cooler 48 is located, through which on the one hand engine oil of the engine 12 is passed.
  • coolant in this case, a water-glycerin mixture
  • a charge air cooler 50 of the internal combustion engine 12 is provided.
  • Both the oil cooler 48 and the intercooler 50 are cooled with coolant of the further cooling circuit 52.
  • the further or secondary cooling circuit 52 here only the connecting lines are designated by the reference numeral 52, has an air-coolant heat exchanger 54, which is arranged on the fan 20 remote from the side of the radiator 14.
  • the rotational speed of the electric machine is controlled as a function of the oil temperature of the internal combustion engine 12.
  • the Oil temperature is detectable with a temperature sensor 56, which also generates an electrical signal that is dependent on the detected temperature and what is supplied via the line 58 of the controller 38.
  • the control strategy of the control device 38 also takes into account the instantaneous power requirement of the compressed air compressor 34 when controlling the rotational speed of the electric machine.
  • the power electronics unit 36 has a temperature sensor 62 which also generates an electrical signal which is dependent on the detected temperature and transmitted to the control device 38.
  • the speed or the torque of the electric machine is also controlled as a function of the temperature of the power electronics 36, in such a way that overheating of the power electronics 36 is excluded.
  • the fan 20 and the compressed air compressor 34 are driven by the electric machine 26 via a flexible means 64.
  • the flexible means 64 is in the form of a V-belt.
  • the fan 20 has a pulley 66.
  • the pulley 32 of the mechanical output 30 of the internal combustion engine 12 drives the oil pump 70 via a belt 68.
  • the pulley 66 and thus the fan 20 is arranged such that it could also be driven via the pulley 68 of the internal combustion engine 12 by means of a belt, not shown in the figure.
  • the generator 18 is in the form of a Welchselstromgenerators.
  • the power electronics unit 36 has a DC-DC converter (not shown separately), with which the AC voltage generated by the generator 18 is convertible into DC voltage.
  • One of the power electronics unit 36 associated converter (not shown separately) is provided, with which the DC voltage in AC voltage is so convertible that the electric machine 26 is operable at a variable predetermined speed.
  • the reference numeral 60 schematically indicates the transmission 12 driven by the internal combustion engine or the traction drive of the commercial vehicle.
  • a part of these components, in particular the transmission oil of the transmission 60, could also be connected to and cooled by a cooling circuit, for example to the further cooling circuit 52 (not shown in the figure).
  • Shown only schematically and with the reference numeral 72 is an electrical load of an implement that can be adapted to the tractor.
  • This electrical load 72 is also supplied by the power electronics unit 36 via line 74 with electrical power, if the appropriate implement is adapted to the tractor.
  • a connector 76 between the vehicle and implement is provided.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (20)

  1. Ensemble d'entraînement pour engin mobile agricole ou industriel, présentant un moteur (12) à combustion interne, un refroidisseur (14) d'un circuit de refroidissement (16), un générateur (18) et un ventilateur (20), de l'air pouvant être déplacé à travers le refroidisseur (14) par le ventilateur (20), le ventilateur (20) étant disposé au voisinage du refroidisseur (14), le ventilateur (20), le moteur (12) à combustion interne et le refroidisseur (14) étant disposés dans un espace (15) prévu pour le moteur, le générateur (18) pouvant être entraîné mécaniquement par le moteur (12) à combustion interne, le générateur (18) pouvant être entraîné mécaniquement d'un côté du moteur (12) à combustion interne autre que celui orienté vers le refroidisseur (14), de l'énergie électrique pouvant être produite par le générateur (18), une machine électrique (26) étant prévue, pouvant être entraînée par l'énergie électrique produite par le générateur (18) et pouvant entraîner mécaniquement le ventilateur (20),
    caractérisé en ce que
    la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction des besoins en énergie d'autres consommateurs électriques du véhicule et
    en ce que l'énergie électrique mise à disposition du ventilateur (20) par le générateur (18) est réduite au cas où un autre consommateur électrique doit être alimenté pour autant que la température du fluide de refroidissement du circuit de refroidissement (16) le permette.
  2. Ensemble d'entraînement selon la revendication 1, caractérisé en ce que la machine électrique (26) présente un arbre de sortie (28) par lequel le ventilateur (20) peut être entraîné mécaniquement.
  3. Ensemble d'entraînement selon la revendication 2, caractérisé en ce que la machine électrique (26) est disposée dans l'espace (15) prévu pour le moteur, en ce que l'arbre de sortie (28) de la machine électrique (26) est disposé dans une partie de l'espace (15) prévu pour le moteur qui présente une sortie d'entraînement mécanique (30) du moteur (12) à combustion interne.
  4. Ensemble d'entraînement selon la revendication 3, caractérisé en ce que la sortie d'entraînement mécanique (30) est une extrémité libre de l'arbre de vilebrequin du moteur (12) à combustion interne qui présente de préférence une poulie (32) pour courroie.
  5. Ensemble d'entraînement selon l'une des revendications 1 à 4, caractérisé en ce que la machine électrique (26) est disposée en un emplacement du moteur (12) à combustion interne où habituellement une machine légère habituelle est prévue.
  6. Ensemble d'entraînement selon l'une des revendications 1 à 5, caractérisé en ce que d'autres consommateurs, par exemple un compresseur (34) d'air, peuvent être entraînés mécaniquement par la machine électrique (26) .
  7. Ensemble d'entraînement selon l'une des revendications 1 à 6, caractérisé en ce qu'une unité électronique de puissance (36) commandée par un un dispositif de commande (38) et par laquelle le sens de rotation, la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés est prévue.
  8. Ensemble d'entraînement selon la revendication 7, caractérisé en ce que la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction de la température du fluide de refroidissement du circuit de refroidissement (16) et éventuellement d'un autre circuit de refroidissement (52) .
  9. Ensemble d'entraînement selon la revendication 7, caractérisé en ce que la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction de la température d'huile du moteur (12) à combustion interne, du train d'entraînement et/ou d'une hydraulique du véhicule.
  10. Ensemble d'entraînement selon la revendication 7, caractérisé en ce que la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction des besoins en énergie d'un consommateur électrique d'un appareil de travail qui peut être accouplé au véhicule, par exemple à une machine de forage ou de semis.
  11. Ensemble d'entraînement selon la revendication 7, caractérisé en ce que la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction des besoins d'un compresseur (34) d'air.
  12. Ensemble d'entraînement selon la revendication 7, caractérisé en ce que la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction de la température du fluide de refroidissement d'un circuit secondaire de refroidissement (52).
  13. Ensemble d'entraînement selon la revendication 7, caractérisé en ce que la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction de la température d'un refroidisseur (50) d'air de suralimentation et/ou de la température du fluide de refroidissement d'un circuit de refroidissement (52) par lequel le refroidisseur (50) d'air de suralimentation peut être refroidi.
  14. Ensemble d'entraînement selon la revendication 7, caractérisé en ce que la vitesse de rotation et/ou le couple de rotation de la machine électrique (26) peuvent être commandés en fonction de la température de l'électronique de puissance (36).
  15. Ensemble d'entraînement selon l'une des revendications 1 à 14, caractérisé en ce qu'au moins un capteur de température (44, 56, 62) est prévu et est disposé de manière à pouvoir détecter avec son aide la température d'un composant, d'un fluide de refroidissement ou d'une huile, et en ce que le capteur (44, 56, 62) de température forme un signal qui peut être transmis à un dispositif de commande (38).
  16. Ensemble d'entraînement selon l'une des revendications 1 à 15, caractérisé en ce que le ventilateur (20) peut être entraîné par la machine électrique (26) par l'intermédiaire d'un moyen flexible (64), en ce que le ventilateur (20) présente une poulie (66) de courroie, en ce que la poulie (66) de courroie est disposée en ce qu'elle puisse également être entraînée au moyen d'une courroie par l'intermédiaire d'une poulie (32) de courroie de l'arbre de vilebrequin ou d'une sortie d'entraînement (30) du moteur (12) à combustion interne.
  17. Ensemble d'entraînement selon la revendication 16, caractérisé en ce que le moyen flexible (64) présente une courroie, une courroie trapézoïdale, des nervures trapézoïdales, une courroie crantée ou une chaîne.
  18. Ensemble d'entraînement selon l'une des revendications 1 à 17, caractérisé en ce qu'une transmission intermédiaire est disposée entre la machine électrique (26) et le ventilateur (20).
  19. Ensemble d'entraînement selon l'une des revendications 1 à 18, caractérisé en ce que le générateur (18) présente un générateur de courant alternatif et en ce qu'un redresseur est prévu pour convertir en une tension continue la tension alternative produite par le générateur (18).
  20. Ensemble d'entraînement selon l'une des revendications 1 à 18, caractérisé en ce qu'un onduleur, de préférence associé à l'unité (36) d'électronique de puissance, est prévu pour convertir la tension continue en une tension alternative de telle sorte que la machine électrique (26) puisse être utilisée à une vitesse de rotation variable sélectionnée.
EP07113712.9A 2006-08-04 2007-08-02 Dispositif d'entraînement pour un véhicule utilitaire industriel ou agricole et procédé de fonctionnement d'un dispositif d'entraînement Active EP1884635B1 (fr)

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DE102006036589A DE102006036589A1 (de) 2006-08-04 2006-08-04 Antriebsvorrichtung für ein landwirtschaftliches oder industrielles Nutzfahrzeug und Verfahren zum Betreiben einer Antriebsvorrichtung

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EP1884635A2 EP1884635A2 (fr) 2008-02-06
EP1884635A3 EP1884635A3 (fr) 2011-08-03
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ITTO20080788A1 (it) 2008-10-24 2010-04-25 Cnh Italia Spa Sistema motore
US8347994B2 (en) * 2011-04-13 2013-01-08 Deere & Company Tractor hood airflow system
US10358040B1 (en) * 2015-06-01 2019-07-23 Hydro-Gear Limited Partnership Drive assembly and system for utility vehicle
US10391854B1 (en) 2015-06-15 2019-08-27 Hydro-Gear Limited Partnership Drive and cooling system for utility vehicle
DE102015016725A1 (de) * 2015-12-22 2017-06-22 Man Diesel & Turbo Se Steuerungssystem und Verfahren zum Kühlen einer Kraftwerksanlage
US10578004B2 (en) * 2016-08-24 2020-03-03 Denso International America, Inc. Power booster for engine fans
MX2022004980A (es) * 2019-10-31 2022-05-13 Lovis Llc Sistema de bomba motorizada accionada por toma de fuerza controlada por computadora.
US12431764B2 (en) * 2019-12-20 2025-09-30 Lovis, Llc Power takeoff-driven refrigeration
US11685225B2 (en) * 2019-12-20 2023-06-27 Lovis, Llc Power takeoff-driven refrigeration

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Also Published As

Publication number Publication date
EP1884635A3 (fr) 2011-08-03
US20080121195A1 (en) 2008-05-29
DE102006036589A1 (de) 2008-02-07
US7584722B2 (en) 2009-09-08
EP1884635A2 (fr) 2008-02-06

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