WO2019116738A1 - Dispositif et procédé de commande d'entraînement de moteur à combustion interne - Google Patents

Dispositif et procédé de commande d'entraînement de moteur à combustion interne Download PDF

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Publication number
WO2019116738A1
WO2019116738A1 PCT/JP2018/039547 JP2018039547W WO2019116738A1 WO 2019116738 A1 WO2019116738 A1 WO 2019116738A1 JP 2018039547 W JP2018039547 W JP 2018039547W WO 2019116738 A1 WO2019116738 A1 WO 2019116738A1
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WO
WIPO (PCT)
Prior art keywords
pto
internal combustion
combustion engine
required torque
adjustment setting
Prior art date
Application number
PCT/JP2018/039547
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English (en)
Japanese (ja)
Inventor
山田　哲也
Original Assignee
ボッシュ株式会社
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Filing date
Publication date
Application filed by ボッシュ株式会社 filed Critical ボッシュ株式会社
Priority to JP2019558949A priority Critical patent/JPWO2019116738A1/ja
Publication of WO2019116738A1 publication Critical patent/WO2019116738A1/fr

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    • 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
    • B60K25/00—Auxiliary drives
    • 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

Definitions

  • the present invention relates to an internal combustion engine drive control device and an internal combustion engine drive control method, and is particularly suitable for application to an internal combustion engine drive control device and an internal combustion engine drive control method having a power take-off function.
  • PTO power take-off
  • an accelerator pedal for traveling In order to set and adjust the desired torque, an accelerator pedal for traveling, a PTO dedicated accelerator volume provided exclusively for adjusting the PTO torque amount, a PTO dedicated switch, etc. are often used.
  • PTO PTO
  • the operation outside the vehicle for example, a crane vehicle
  • the operation at the driver's seat for example, a road cleaning vehicle
  • the needs of the operator are It varies according to the type etc.
  • the PTO dedicated accelerator volume and the PTO dedicated switch as described above. In general, only the accelerator pedal can be used for PTO operation at the driver's seat.
  • the present invention has been made in view of the above situation, and the same operation as the PTO dedicated volume can be realized by diverting an existing component without newly establishing a PTO dedicated volume for setting operation of the PTO required torque at the driver's seat.
  • An internal combustion engine drive control device and an internal combustion engine drive control method capable of enabling a PTO operation ensuring convenience.
  • an internal combustion engine drive control device that performs control operation of power take-off that supplies a part of power of an internal combustion engine to a special equipment by an electronic control unit (500),
  • the electronic control unit (500) PTO required torque adjustment setting unit (50) to adjust the size of torque required for power take-off,
  • the PTO required torque adjustment setting unit (50) On / off of the cruise main switch which detects ON of the PTO main switch based on the ON / OFF signal of the PTO main switch inputted from the outside, and turns ON / OFF execution of the constant speed traveling control inputted from the outside If the cruise main switch is detected to be off based on a signal, Temporarily set the setting value input by the existing adjustment setting unit (60) as the setting value of the PTO required torque adjustment setting unit (50), Calculate a target torque according to the set value of the PTO required torque adjustment setting unit (50), It is characterized in that execution of fuel injection according to
  • the device configuration It is effective to be able to contribute to simplification and price reduction.
  • FIG. 3 is a functional block diagram representing functions required of the internal combustion engine drive control device in order to execute the internal combustion engine drive control processing in the embodiment of the present invention in the internal combustion engine drive control device in functional blocks. It is a flowchart which shows the procedure of the first half of the internal combustion engine drive control processing in embodiment of this invention. It is a flowchart which shows the procedure of the second half of the internal combustion engine drive control processing in embodiment of this invention.
  • FIG. 8 is a schematic view schematically showing an example of change of PTO required torque with respect to change of set value of PTO volume and an example of change of engine rotational speed and target torque with respect to change of PTO required torque.
  • the internal combustion engine drive control device in the embodiment of the present invention is a specially equipped vehicle, for example, a road sweeper, etc., and is particularly suitable for a vehicle where a PTO (power take-off) operation is desired at the driver's seat.
  • a specially equipped vehicle is, for example, a road cleaner.
  • An electronic control unit (ECU) 500 shown in FIG. 1 performs engine control, injection control, and the like of a special vehicle.
  • the PTO required torque adjustment setting unit 50 is formed by software in addition to the conventional execution functions such as engine control processing, etc. to execute the internal combustion engine drive control processing in the embodiment of the present invention. It is possible.
  • the procedure of the internal combustion engine drive control process executed by the electronic control unit 500 will be described with reference to the flowcharts shown in FIGS. 2 and 3, and the functional blocks in FIG. 1 will be referred to as necessary.
  • This internal combustion engine drive control process relates particularly to the setting operation of the PTO required torque at the driver's seat, and it is possible to divert a volume or a switch generally provided in the vehicle to the setting operation of the PTO required torque.
  • the convenience of the PTO operation in the special vehicle, the simplification of the configuration, and the like can be realized without requiring addition.
  • the electronic control unit 500 receives an on / off signal of the PTO main switch from the outside through the interface circuit 1.
  • step S240 determines whether the PTO main switch is on (in the case of NO)
  • step S110, step S140, step S150 and step S200 are performed in time division.
  • step S140 the PTO required torque set by the operation of the PTO accelerator volume (not shown) is calculated.
  • the PTO accelerator volume is provided exclusively for PTO operation, it is not necessarily essential.
  • the internal combustion engine drive control process in the embodiment of the present invention is originally capable of diverting the existing adjustment setting means to the PTO operation without providing the adjustment setting means dedicated to the PTO operation such as the PTO accelerator volume.
  • the process of step S140 is applicable even when there is a PTO accelerator volume dedicated to PTO operation.
  • the PTO accelerator volume is, for example, configured to be rotatable in a predetermined angular range to adjust the PTO required torque, and the PTO required torque is set to a desired value between 0 and 100% in the rotational range It is possible.
  • step S140 the PTO required torque corresponding to the set position of the PTO accelerator volume is calculated using a predetermined arithmetic expression based on the correlation.
  • the set value of the PTO accelerator volume is externally input to the electronic control unit 500 through the analog / digital converter 2 as a voltage signal.
  • the depression amount of the accelerator pedal which will be described later, is input to the electronic control unit 500 as a voltage signal through the analog-to-digital converter 3.
  • the set value of the PTO volume is input as a voltage signal through the analog-to-digital converter 4. Further, on / off signals of the pair of switches (the increase / decrease switches) which can be increased / decreased are input from the outside to the electronic control unit 500 through the interface circuit 5.
  • the depression amount of the accelerator pedal, the set value of the PTO accelerator volume, the set value of the PTO volume, and the signal of the increase / decrease switch which are input from the outside form the existing adjustment setting unit 60.
  • PTO volume and increment / decrement switch are examples of existing setting devices whose setting values can be changed continuously, and PTO volume setting values and increment / decrement pairs of switch on / off signals are existing. It is an example of the input signal input from a setting device.
  • step S150 the PTO required torque set by the operation of the accelerator pedal (not shown) is calculated.
  • the PTO required torque setting by this accelerator pedal is to replace the PTO volume etc. described later from the viewpoint of operability etc., as with the above-mentioned PTO accelerator volume, but from the viewpoint of securing diversity of PTO operation etc. It is also possible to respond to PTO operation with the accelerator pedal.
  • step S110 it is determined whether the special vehicle has stopped.
  • the presence or absence of the vehicle stop may be performed by a conventional method of engine control or the like, and it is not necessary to perform the special process unique to the present invention.
  • the vehicle speed and the neutral signal, and the output signals of the sensors provided for detecting the operation of the clutch pedal, the brake pedal and the hand brake are comprehensively judged (see FIG. See F1 in 1).
  • the vehicle speed, the neutral signal, and detection signals of the operation of the clutch pedal, the brake pedal, and the hand brake are input to the electronic control unit 500 from the outside through the interface circuit 6.
  • step S110 When it is determined in step S110 that the vehicle is at a stop (in the case of YES), each processing of step S130 and step S190 (see FIG. 3) is performed in a time division manner.
  • step S110 determines that the vehicle is not stopped (in the case of NO)
  • step S180 determines that the vehicle is not stopped (in the case of NO)
  • step S180 is executed.
  • step S130 the PTO required torque set by the operation of the PTO volume is calculated.
  • PTO volume is used in this embodiment for the purpose of distinguishing it from the original function when using a continuously variable volume (not shown) at the driver's seat for setting the PTO required torque. Name.
  • the volume is adjustment setting means for setting the accelerator opening instead of the accelerator pedal.
  • mechanical ones are used.
  • a knob is provided rotatably in a predetermined angular range, and the accelerator opening degree can be adjusted by changing the rotational position.
  • the PTO volume using such a volume can set the PTO required torque to a desired value between 0 and 100% in the above rotation range, but can be increased or decreased in recent years due to the problem of durability Digitized ones using a pair of switches are also in widespread use. For example, pressing the increase switch once increases the PTO required torque by several%, and pressing the lower limit switch once reduces the PTO required torque by several% so that the electronic control unit 500 processes the function equivalent to the volume. Do.
  • step S130 the PTO required torque corresponding to the set position of the PTO volume is calculated using a predetermined arithmetic expression based on the correlation.
  • FIG. 4 the characteristic diagram in which the vertical axis represents the PTO required torque with respect to the time axis of the horizontal axis, for example, changes the PTO volume from zero to the maximum value and returns it to zero again (PTO An example of change characteristics of the required torque is shown.
  • the idle speed is PTO to compensate for the decrease in engine speed due to the increase in engine load due to PTO operation.
  • the operation is supposed to be increased more than usual when it is not effective.
  • the dotted arrow in the idling region of the characteristic line of engine speed in FIG. 4 represents this increase in engine speed.
  • the numerical value representing the engine rotational speed described on the engine rotational speed axis is merely an example, and may vary depending on the specific specification of the vehicle and the like.
  • the changes in the engine rotational speed and the PTO target torque with respect to the setting of the PTO volume and the like described above are not specific to the present invention, and are basically the same as in the case of using the conventional PTO dedicated accelerator volume.
  • step S180 it is determined whether mobile PTO operation is permitted (see F2 in FIG. 1).
  • mobile PTO operation means PTO operation performed when the special vehicle travels.
  • the mobile PTO operation is permitted when it is traveling, for example, a special vehicle represented by a road cleaning car or a mixer car.
  • Whether or not the mobile PTO operation can be permitted depends on, for example, a predetermined flag or the like in an appropriate storage area of the electronic control unit 500 in advance when the internal combustion engine drive control device according to the embodiment of the present invention is mounted on a special vehicle. It is set in the form. Therefore, in step S180, it is determined whether or not the mobile PTO operation can be permitted based on the stored data as to whether or not the mobile PTO operation stored in the appropriate storage area of the electronic control unit 500 can be permitted.
  • step S180 When it is determined in step S180 that the mobile PTO operation can be permitted (in the case of YES), the process proceeds to step S190. On the other hand, if it is determined in step S180 that the mobile PTO operation can not be permitted (in the case of NO), the process proceeds to step S240.
  • step S190 one of the results is selected when the determination of YES is made in step 180 or when the determination of YES is made in the previous step S110 (see FIG. 2).
  • step S200 a logical product (AND) of the processing result of step S190, the determination result of YES of the previous step S100 (see FIG. 2), and the determination result of YES of step S230 is obtained.
  • step S180 or step S110 is YES
  • step S100 is YES
  • step S230 logical "1" is set.
  • step S210 when the logical product in step S200 is "1", it is determined that the PTO operation is valid (see F3 in FIG. 1).
  • step S210 when it is determined that the PTO operation is valid (in the case of YES), the process proceeds to the process of step S280, while when it is determined that the PTO operation is not valid (in the case of NO), the process proceeds to the process of step S240. It will be.
  • step S220 based on the processing results of steps S130 to S150 described above, when there is a plurality of PTO required torques, the maximum value among them is selected (see F4 in FIG. 1).
  • step S270 the PTO required torque selected in step S220 is converted into a target torque.
  • the PTO required torque represents a set amount of PTO volume and does not directly represent torque.
  • the correlation between each PTO required torque and a specific target torque according to this PTO required torque is determined in advance, and in step S270, PTO is calculated by an arithmetic expression set based on such a correlation.
  • a target torque corresponding to the required torque is calculated (see F5 in FIG. 1).
  • step S280 the target torque calculated as described above is output to the separately executed fuel injection control process (see step S280 in FIG. 3 and F6 in FIG. 1). It should be noted that upon execution of the process of step S280, it is premised that the PTO operation is determined to be valid in step S210 described above.
  • step S290 in FIG. 3 a fuel injection request is made for the separately executed fuel injection control process
  • step S290 in FIG. 3 the fuel injection necessary to achieve the target torque is performed.
  • step S300 the PTO operation lamp (not shown) is turned on (see step S300 in FIG. 3).
  • step S300 the series of processes are temporarily ended, and the process returns to the main routine (not shown).
  • step S230 it is determined whether the PTO required torque is zero or not (see F7 in FIG. 1).
  • the process of step 230 is performed only at the first time after the PTO main switch is turned on and the PTO operation becomes effective.
  • the PTO required torque is automatically reset to zero when the PTO main switch is turned off. Therefore, thereafter, immediately after the PTO main switch is turned on, the PTO required torque is usually zero. However, if the PTO required torque by the previous operation or the like is effective immediately after the PTO main switch is turned on due to some cause, an originally unintended torque may be transmitted to the special equipment to operate.
  • step S240 in FIG. 3 and F8 in FIG. 1). .
  • the prohibition of the PTO required torque in step S240 is also executed similarly when the determination of NO is made in any of the previous step S100, step S180 and step S210.
  • the injection request required for the PTO operation is prohibited, and the engine is in an idling state (see step S250 in FIG. 3).
  • the PTO operation lamp (not shown) is turned off, and the series of processes are temporarily ended, and the process returns to the main routine not shown (see step S260 in FIG. 3). By turning off the PTO operation lamp, the operator can recognize that the PTO operation state has been cancelled.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

La présente invention a pour but de permettre une manœuvre de prise de force (PTO) dans laquelle un élément existant est dévié afin de garantir une efficacité opérationnelle et un avantage équivalents pour un volume dédié à la prise de force, sans installer à nouveau le volume dédié à la prise de force. Une unité de commande électronique (500) détecte la mise sous tension d'un commutateur principal de prise de force en fonction d'un signal de marche/arrêt, du commutateur principal de prise de force, appliqué de l'extérieur. Pendant ce temps, lors de la détection d'informations d'arrêt d'un véhicule saisies de l'extérieur, l'unité de commande électronique (500) adopte temporairement une valeur de réglage d'un volume consécutivement variable en tant que valeur de réglage du volume de prise de force, calcule un couple cible en fonction de la valeur de réglage, et demande l'exécution de l'injection de combustible en fonction du couple cible calculé concernant une commande d'injection de combustible destinée à commander l'injection de combustible au moteur à combustion interne.
PCT/JP2018/039547 2017-12-11 2018-10-24 Dispositif et procédé de commande d'entraînement de moteur à combustion interne WO2019116738A1 (fr)

Priority Applications (1)

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JP2019558949A JPWO2019116738A1 (ja) 2017-12-11 2018-10-24 内燃機関駆動制御装置及び内燃機関駆動制御方法

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JP2017-237204 2017-12-11
JP2017237204 2017-12-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022010552A1 (fr) * 2020-07-10 2022-01-13 Tula Technology, Inc. Utilisation de coupe-feu avec prise de puissance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000080934A (ja) * 1998-09-04 2000-03-21 Hino Motors Ltd 燃料供給量制御装置
JP2001507429A (ja) * 1998-03-02 2001-06-05 カミンズ エンジン カンパニー，インコーポレイティド パワーテイクオフ動作中のエンジン速度を制御する方法および装置
JP2001151499A (ja) * 1999-11-29 2001-06-05 Aichi Corp 架装作業車のアクセルコントロール装置
JP2008190382A (ja) * 2007-02-02 2008-08-21 Nissan Diesel Motor Co Ltd エンジンの回転数制御装置及び制御方法
JP2012077641A (ja) * 2010-09-30 2012-04-19 Kubota Corp 作業車の制御システム
JP2013189081A (ja) * 2012-03-14 2013-09-26 Isuzu Motors Ltd パワーテイクオフ装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001507429A (ja) * 1998-03-02 2001-06-05 カミンズ エンジン カンパニー，インコーポレイティド パワーテイクオフ動作中のエンジン速度を制御する方法および装置
JP2000080934A (ja) * 1998-09-04 2000-03-21 Hino Motors Ltd 燃料供給量制御装置
JP2001151499A (ja) * 1999-11-29 2001-06-05 Aichi Corp 架装作業車のアクセルコントロール装置
JP2008190382A (ja) * 2007-02-02 2008-08-21 Nissan Diesel Motor Co Ltd エンジンの回転数制御装置及び制御方法
JP2012077641A (ja) * 2010-09-30 2012-04-19 Kubota Corp 作業車の制御システム
JP2013189081A (ja) * 2012-03-14 2013-09-26 Isuzu Motors Ltd パワーテイクオフ装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022010552A1 (fr) * 2020-07-10 2022-01-13 Tula Technology, Inc. Utilisation de coupe-feu avec prise de puissance
US11724594B2 (en) 2020-07-10 2023-08-15 Tula Technology, Inc. Using skip fire with power take-off

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