WO2018212178A1 - Dispositif de commande et procédé de commande - Google Patents

Dispositif de commande et procédé de commande Download PDF

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Publication number
WO2018212178A1
WO2018212178A1 PCT/JP2018/018757 JP2018018757W WO2018212178A1 WO 2018212178 A1 WO2018212178 A1 WO 2018212178A1 JP 2018018757 W JP2018018757 W JP 2018018757W WO 2018212178 A1 WO2018212178 A1 WO 2018212178A1
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WO
WIPO (PCT)
Prior art keywords
opening
control
internal combustion
combustion engine
equal
Prior art date
Application number
PCT/JP2018/018757
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English (en)
Japanese (ja)
Inventor
将司 早崎
Original Assignee
いすゞ自動車株式会社
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 いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Priority to CN201880027567.4A priority Critical patent/CN110573717A/zh
Publication of WO2018212178A1 publication Critical patent/WO2018212178A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • 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
    • F02D29/02—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 vehicles; peculiar to engines driving variable pitch propellers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00

Definitions

  • the present disclosure relates to a control device and a control method for performing control when the internal combustion engine is stopped.
  • idling stop control is performed in a vehicle equipped with an internal combustion engine for the purpose of improving fuel consumption and reducing exhaust gas.
  • the idling stop control is a control that automatically stops the internal combustion engine (without depending on the driver's operation) when the vehicle stops, and automatically restarts the internal combustion engine when the vehicle starts.
  • Patent Document 1 discloses a technique for stopping rotation of an internal combustion engine by generating a negative torque by driving a motor generator as a generator when performing idling stop control.
  • An object of the present disclosure is to provide a control device and a control method capable of realizing a quick start of a stopped internal combustion engine.
  • a control device includes an injection control unit that controls injection of fuel into a cylinder of an internal combustion engine, and a throttle that controls opening and closing of a throttle valve provided in an intake passage connected to the internal combustion engine.
  • a motor control unit that controls a motor, and when the internal combustion engine being driven is stopped, the motor control unit is controlled to stop the fuel injection by the injection control unit, and After the throttle opening / closing control unit performs control to close the throttle valve, the determination unit determines that the throttle valve opening is equal to or less than the first specified opening. If it is a constant, it executes a negative torque generation control to output a negative torque from the motor.
  • a control method includes injection of fuel into a cylinder of an internal combustion engine, opening and closing of a throttle valve provided in an intake passage connected to the internal combustion engine, and a crankshaft of the internal combustion engine
  • the stopped internal combustion engine can be quickly started.
  • FIG. 1 is a schematic diagram illustrating an example of a configuration of an internal combustion engine and its surroundings according to an embodiment of the present disclosure.
  • FIG. 2 is a block diagram illustrating a configuration example of the ECU according to the embodiment of the present disclosure.
  • FIG. 3 is a block diagram illustrating a configuration example of the HCU according to the embodiment of the present disclosure.
  • FIG. 4 is a sequence chart illustrating an operation example of the ECU and the HCU according to the embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram showing an example of the configuration of an internal combustion engine and its surroundings according to the present embodiment.
  • broken arrows indicate the flow of electrical signals.
  • 1 is mounted on, for example, a vehicle in which idling stop control is performed.
  • An intake passage 3 is connected to an upstream side of a diesel engine (an example of an internal combustion engine, hereinafter referred to as an engine) 1 via an intake manifold 2.
  • an exhaust passage is connected to the downstream side of the engine 1 via an exhaust manifold.
  • the intake passage 3 is provided with a throttle valve 4 that adjusts the flow rate of air sucked into the engine 1.
  • the opening degree of the throttle valve 4 is controlled by an ECU (Engine Control Unit) 10.
  • the intake passage 3 is provided with an opening degree sensor 5 for detecting the opening degree of the throttle valve 4.
  • the opening sensor 5 appropriately outputs a signal indicating the detected opening of the throttle valve 4 (hereinafter referred to as a detected opening) to the ECU 10.
  • the engine 1 includes a plurality of cylinders (cylinders) and a fuel injection device (injector) that injects fuel into each cylinder.
  • the fuel injection operation by the fuel injection device is controlled by the ECU 10.
  • Each cylinder is provided with a piston (not shown) that slides up and down in the cylinder.
  • crankshaft 6 is connected to a connecting rod (not shown) that converts the vertical movement of the piston into a rotational movement. Thereby, the crankshaft 6 rotates.
  • omitted the crankshaft 6 is connected to the predetermined
  • the crankshaft 6 is connected to an output shaft 9 of a motor generator (hereinafter referred to as a motor) 8 via an endless belt.
  • the output shaft 9 is rotated by driving the motor 8.
  • the motor 8 is controlled by an HCU (Hybrid Control Unit) 20.
  • Rotational motion of the output shaft 9 is transmitted to the crankshaft 6 through the endless belt 7.
  • BAS Belted Alternator Starter
  • the connecting means between the output shaft 9 and the crankshaft 6 is not limited to the endless belt 7.
  • crankshaft 6 is provided with a rotational speed sensor that detects the rotational speed of the engine 1.
  • the rotation speed sensor appropriately outputs a signal indicating the detected rotation speed (hereinafter referred to as a detected rotation speed) to the ECU 10.
  • the ECU 10 and the HCU 20 will be described later with reference to FIGS.
  • the ECU 10 and the HCU 20 according to the present embodiment correspond to an example of a “control device”.
  • FIG. 2 is a block diagram illustrating a configuration example of the ECU 10.
  • ECU10 has the injection control part 110, the throttle opening / closing control part 120, and the information output part 130.
  • the injection control unit 110 controls the fuel injection device so as to inject a predetermined amount of fuel at a predetermined timing.
  • control for causing the fuel injection device to perform fuel injection is referred to as “injection control”
  • injection stop control control for causing the fuel injection device to stop fuel injection is referred to as “injection stop control”.
  • the throttle opening / closing control unit 120 controls the throttle valve 4 to be in an open state or a closed state.
  • the control for opening the throttle valve 4 is referred to as “open control”
  • the control for closing the throttle valve 4 is referred to as “closed control”.
  • the information output unit 130 outputs various information to the HCU 20.
  • the various information includes, for example, information indicating a detected opening detected by the opening sensor 4 (hereinafter referred to as opening information), information indicating a detected rotation detected by the rotation sensor (hereinafter referred to as rotation speed information). ), Information indicating the fuel injection amount.
  • FIG. 3 is a block diagram illustrating a configuration example of the HCU 20.
  • the HCU 20 includes a request output unit 210, a determination unit 220, and a motor control unit 230.
  • the request output unit 210 outputs various requests to the ECU 10.
  • the various requests include, for example, a request for stopping the engine 1 (hereinafter referred to as an engine stop request), a request for executing open control (hereinafter referred to as an open control request), and the like.
  • the engine stop request is output, for example, when the traveling vehicle stops traveling (for example, when the amount of depression of the brake pedal is a predetermined value or more, or when the gear is changed from drive to neutral).
  • the engine stop request may be paraphrased as a request for executing the injection stop control and the close control.
  • the stop of the engine 1 includes a temporary stop of the engine 1 (for example, the stop of the engine 1 by idling stop control), and the start of the engine 1 refers to the restart of the engine 1 (For example, the engine 1 is restarted by idling stop control).
  • the determination unit 220 performs various determinations based on the opening degree information or the rotation speed information received from the ECU 10.
  • the determination unit 220 determines whether or not the detected opening indicated by the opening information is equal to or less than the first specified opening.
  • the first specified opening is, for example, 0% or a value larger than 0% but close to 0%.
  • the determination unit 220 determines whether or not the detected opening indicated by the opening information is equal to or greater than the second specified opening.
  • the second specified opening is a value that does not cause negative pressure in the intake manifold 2 when cranking is executed. Further, the second specified opening is a value larger than the first specified opening.
  • the determination unit 220 determines whether or not the detected rotational speed indicated in the rotational speed information is equal to or lower than the first specified rotational speed.
  • the first specified rotational speed is, for example, zero or a value larger than zero but nearly zero.
  • the motor control unit 230 performs cranking control or negative torque generation control as control for the motor 8.
  • the cranking control is a control for outputting a positive torque from the motor 8.
  • the output shaft 9 of the motor 8 rotates in the same direction as the rotation direction of the engine 1, and similarly, the crankshaft 6 also rotates in the same direction as the rotation direction of the engine 1.
  • the negative torque generation control is a control for outputting a negative torque from the motor 8.
  • the output shaft 9 and the crankshaft 6 of the motor 8 brake the rotation of the engine 1.
  • the configuration of the HCU 20 has been described above.
  • FIG. 4 is a sequence chart showing an operation example of the ECU 10 and the HCU 20.
  • the request output unit 210 of the HCU 20 outputs an engine stop request to the ECU 10 (step S101).
  • This engine stop request is output, for example, when an operation is performed to set the brake pedal depression amount to a predetermined amount or more (in other words, the brake is on) in order to stop the traveling vehicle. Is done.
  • the injection control unit 110 executes the injection stop control, and the throttle opening / closing control unit 120 performs the close control (step S102).
  • the engine speed and the opening degree of the throttle valve 4 decrease with time.
  • the information output part 130 outputs opening degree information and rotation speed information to HCU20 (step S103). Note that this output processing is performed a plurality of times at predetermined time intervals.
  • the determination unit 220 determines whether or not the detected opening degree indicated by the opening degree information is equal to or less than the first specified opening degree (step S104).
  • step S104 NO
  • the determination unit 220 determines whether the detected opening indicated in the next received opening information is less than the first specified opening. Determine.
  • the negative torque generation control when the detected opening is not less than the first specified opening, the negative torque generation control is not executed, and when the detected opening is less than the first specified opening, the negative torque generation control is performed. Is executed.
  • the determination unit 220 determines whether or not the detected rotational speed indicated in the rotational speed information is equal to or lower than the first specified rotational speed (step S106).
  • the rotation speed information here is rotation speed information received by the HCU 20 after the negative torque generation control is started.
  • step S106: NO the determination unit 220 determines whether or not the detected rotational speed indicated in the next received rotational speed information is less than or equal to the first specified rotational speed. Determine.
  • step S106 when the detected rotational speed is equal to or lower than the first specified rotational speed (step S106: YES), the motor control unit 230 ends the negative torque generation control, and the request output unit 210 outputs an opening control request to the ECU 10. (Step S107).
  • the throttle opening / closing control unit 120 executes the opening control (step S108). As a result, the opening degree of the throttle valve 4 increases with time.
  • the information output part 130 outputs opening degree information and rotation speed information to HCU20 (step S109). Note that this output processing is performed a plurality of times at predetermined time intervals.
  • the amount of depression of the brake pedal is set to zero (in other words, the brake is in an off state). Assume that an operation has been performed. In other words, it is assumed that a condition for restarting the engine 1 (referred to as a restart condition) is satisfied.
  • the determination unit 220 of the HCU 20 determines whether or not the detected opening indicated by the opening information is equal to or greater than the second specified opening (step S110).
  • step S110: NO the determination unit 220 determines whether or not the detected opening indicated in the received opening information is greater than or equal to the second specified opening. Determine.
  • step S110 when the detected opening is greater than or equal to the second specified opening (step S110: YES), the motor control unit 230 executes cranking control (step S111).
  • cranking control is not executed when the detected opening is equal to or less than the second specified opening, and cranking control is executed when the detected opening is equal to or greater than the second specified opening. Is done.
  • the injection control unit 110 of the ECU 10 executes the injection control when the engine speed reaches the specified value (step S113).
  • the determination unit 220 determines whether or not the detected rotational speed indicated in the rotational speed information is equal to or higher than the second specified rotational speed (step S112).
  • the rotation speed information here is rotation speed information received by the HCU 20 after cranking control is started.
  • step S112 NO
  • the determination unit 220 determines whether or not the detected rotational speed indicated in the next received rotational speed information is equal to or higher than the second specified rotational speed. Determine.
  • step S112 when the detected rotational speed is equal to or higher than the second specified rotational speed (step S112: YES), the motor control unit 230 ends the cranking control (step S114). Thereafter, the engine 1 operates independently.
  • the cranking control is performed when the detected opening is equal to or greater than the second specified opening. As a result, the intake manifold 2 does not become negative pressure, and the throttle valve 4 can be opened.
  • the operation is almost the same as in the above embodiment. That is, immediately after the end of the negative torque generation control, the request output unit 210 outputs an opening control request to the ECU 10. Then, the motor control unit 230 performs cranking control when the detected opening is equal to or greater than the second specified opening. Subsequent operations are the same as those in the embodiment.
  • the motor control unit 230 immediately ends the negative torque generation control when the restart condition is satisfied, and the request output unit 210 outputs an opening control request to the ECU 10. Then, the motor control unit 230 performs cranking control when the detected opening is equal to or greater than the second specified opening. Subsequent operations are the same as those in the embodiment.
  • a control device includes an injection control unit that controls injection of fuel into a cylinder of an internal combustion engine, and a throttle opening / closing control unit that controls opening and closing of a throttle valve provided in an intake passage connected to the internal combustion engine.
  • a determination unit that determines whether or not the opening of the throttle valve is equal to or less than a first specified opening, and a motor that rotates an output shaft connected to a crankshaft of the internal combustion engine via a predetermined member.
  • a motor control unit and when the internal combustion engine being driven is stopped, the motor control unit is controlled to stop the fuel injection by the injection control unit, and the throttle opening / closing
  • the control unit performs control to close the throttle valve and then the determination unit determines that the opening of the throttle valve is equal to or less than the first specified opening Performing a negative torque generation control to output a negative torque from the motor.
  • the determination unit determines whether the rotational speed of the internal combustion engine is equal to or lower than a first specified rotational speed, and the motor control unit When the determination unit determines that the rotation speed of the internal combustion engine is equal to or less than the first specified rotation speed, the negative torque generation control may be terminated.
  • the motor control unit may start the stopped internal combustion engine before the determination unit determines that the rotation speed of the internal combustion engine is equal to or less than the first specified rotation speed.
  • the negative torque generation control may be immediately terminated.
  • the throttle opening / closing control unit may perform control to open the throttle valve after the negative torque generation control is completed.
  • the determination unit determines whether or not an opening of the throttle valve is greater than or equal to a second specified opening, and the motor control unit May perform cranking control for outputting a positive torque from the motor when the determination unit determines that the opening of the throttle valve is greater than or equal to the second specified opening.
  • the determination unit determines whether or not the rotation speed of the internal combustion engine is equal to or higher than a second specified rotation speed after the cranking control is performed, and the motor control unit The cranking control may be terminated when it is determined by the unit that the rotational speed of the internal combustion engine is equal to or higher than the second specified rotational speed.
  • the injection control unit may execute the fuel injection when the rotational speed of the internal combustion engine reaches a specified value after the cranking control is performed.
  • the control method of the present disclosure includes: injection of fuel into a cylinder of an internal combustion engine; opening and closing of a throttle valve provided in an intake passage connected to the internal combustion engine; and a predetermined member on a crankshaft of the internal combustion engine.
  • a control method for controlling driving of a motor that rotates an output shaft connected thereto, and when the internal combustion engine being driven is stopped, the fuel injection is stopped and the throttle valve is
  • the control for closing it is performed, it is determined whether or not the opening of the throttle valve is less than or equal to the first specified opening, and it is determined that the opening of the throttle valve is less than or equal to the first specified opening
  • the negative torque is output from the motor.
  • the present disclosure can be applied to a control device and a control method for performing control when the internal combustion engine is stopped.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

La présente invention concerne un dispositif de commande et un procédé de commande pour démarrer rapidement un moteur à combustion interne arrêté. Une ECU (10) comprend une unité de commande d'injection (110) qui commande l'injection de carburant dans un moteur diesel (1), et une unité de commande d'ouverture/fermeture de commande des gaz (120) qui commande l'ouverture/la fermeture d'une commande des gaz (4) disposée sur un passage d'admission (3). Une HCU (20) comprend une unité de détermination (220) qui détermine si le degré d'ouverture de la commande des gaz (4) est inférieur ou égal à un premier degré d'ouverture prescrit, et une unité de commande de moteur (230) qui commande un moteur (8) pour faire tourner un arbre de sortie (9) relié à un vilebrequin (6) par l'intermédiaire d'une courroie sans fin (7). Lorsque l'unité de détermination (220) détermine que le degré d'ouverture de la commande des gaz est inférieur ou égal au premier degré d'ouverture prescrit, suite à une commande d'arrêt d'injection effectuée par l'unité de commande d'injection (110) et la commande de fermeture effectuée par l'unité de commande d'ouverture/fermeture de commande des gaz (120), l'unité de commande de moteur (230) amène le moteur (8) à délivrer un couple négatif.
PCT/JP2018/018757 2017-05-16 2018-05-15 Dispositif de commande et procédé de commande WO2018212178A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880027567.4A CN110573717A (zh) 2017-05-16 2018-05-15 控制装置及控制方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-097096 2017-05-16
JP2017097096A JP2018193897A (ja) 2017-05-16 2017-05-16 制御装置および制御方法

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WO2018212178A1 true WO2018212178A1 (fr) 2018-11-22

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WO (1) WO2018212178A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN112447511A (zh) * 2020-11-24 2021-03-05 上海华力集成电路制造有限公司 一种改善多晶硅刻蚀腔体聚合物缺陷的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002155773A (ja) * 2000-11-16 2002-05-31 Toyota Motor Corp 車両駆動装置
JP2004293327A (ja) * 2003-03-25 2004-10-21 Mitsubishi Motors Corp エンジンの自動停止装置
JP2007231786A (ja) * 2006-02-28 2007-09-13 Toyota Motor Corp 内燃機関の自動停止装置及びこの自動停止装置を備えた自動車用内燃機関
WO2013035180A1 (fr) * 2011-09-08 2013-03-14 トヨタ自動車株式会社 Appareil de commande pour moteur à combustion interne
JP2015048827A (ja) * 2013-09-04 2015-03-16 マツダ株式会社 エンジンの始動制御装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3821090B2 (ja) * 2002-10-22 2006-09-13 トヨタ自動車株式会社 内燃機関の始動制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002155773A (ja) * 2000-11-16 2002-05-31 Toyota Motor Corp 車両駆動装置
JP2004293327A (ja) * 2003-03-25 2004-10-21 Mitsubishi Motors Corp エンジンの自動停止装置
JP2007231786A (ja) * 2006-02-28 2007-09-13 Toyota Motor Corp 内燃機関の自動停止装置及びこの自動停止装置を備えた自動車用内燃機関
WO2013035180A1 (fr) * 2011-09-08 2013-03-14 トヨタ自動車株式会社 Appareil de commande pour moteur à combustion interne
JP2015048827A (ja) * 2013-09-04 2015-03-16 マツダ株式会社 エンジンの始動制御装置

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CN110573717A (zh) 2019-12-13
JP2018193897A (ja) 2018-12-06

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