WO2013132531A1 - Dispositif et procédé de commande de moteur - Google Patents

Dispositif et procédé de commande de moteur Download PDF

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Publication number
WO2013132531A1
WO2013132531A1 PCT/JP2012/001529 JP2012001529W WO2013132531A1 WO 2013132531 A1 WO2013132531 A1 WO 2013132531A1 JP 2012001529 W JP2012001529 W JP 2012001529W WO 2013132531 A1 WO2013132531 A1 WO 2013132531A1
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WIPO (PCT)
Prior art keywords
threshold value
state
engine
remaining capacity
threshold
Prior art date
Application number
PCT/JP2012/001529
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English (en)
Japanese (ja)
Inventor
康平 栃木
伊藤　耕巳
亨裕 宮下
伸和 植木
Original Assignee
トヨタ自動車株式会社
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Application filed by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to PCT/JP2012/001529 priority Critical patent/WO2013132531A1/fr
Publication of WO2013132531A1 publication Critical patent/WO2013132531A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • 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
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18018—Start-stop drive, e.g. in a traffic jam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0825—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to prevention of engine restart failure, e.g. disabling automatic stop at low battery state
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
    • F02N2200/061—Battery state of charge [SOC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the present invention relates to operation control of an engine that charges a battery via a generator.
  • idle stop control also referred to as “start-and-stop control” that stops the engine when the vehicle speed falls below a predetermined value.
  • start-and-stop control In general, in a vehicle such as an automobile, a generator is driven by an engine, and electric power generated by the generator is supplied to the battery to charge the battery.
  • the remaining capacity of the battery In a vehicle that performs idle stop control, while the engine is stopped by idle stop control, power generation using the engine and charging of the battery are not performed. Therefore, the remaining capacity of the battery is the power to the auxiliary equipment such as an air conditioner. Reduced by supply. The battery deteriorates when it is repeatedly charged and discharged in a state where the remaining capacity is low. Therefore, when the remaining capacity of the battery falls below the threshold value, the engine is started by prohibiting the execution of the idle stop control, and the battery is deteriorated.
  • Patent Document 1 A technique for suppressing the above has been proposed (Patent Document 1).
  • the technology for prohibiting the execution of idle stop control and restarting the engine can frequently switch the engine operating state.
  • the engine is started due to a user (operator) operation such as stopping the depression of the brake pedal during the idle stop control, and immediately after that, the vehicle is stopped due to the brake operation.
  • the stop control is executed and the engine stops, the engine operating state changes to a stopped state, an operating state, and a stopped state within a short period of time.
  • a threshold value that is a criterion for restarting the engine, a short period of time after the engine operating state is stopped.
  • the remaining battery capacity becomes equal to or less than the threshold value
  • the engine is restarted, and the operating state of the engine becomes the operating state. Therefore, in this case, the engine operating state repeats a stop state and an operating state within a short period of time.
  • the above problem may occur not only in a vehicle that stops the engine when the vehicle speed becomes a predetermined value or less, but also in a vehicle that stops the engine during normal traveling where the vehicle speed is higher than the predetermined value.
  • a vehicle that stops the engine For example, an electric vehicle (EV: Electric Vehicle) travel mode that travels using a motor driven by power supplied from a battery as a power source, and a hybrid that travels using an engine as a power source and charges the battery by regenerative power generation during deceleration
  • HV HybridHVehicle
  • the engine includes an engine, a generator driven by the engine, and a battery charged with the electric power generated by the generator, and the engine is stopped and restarted according to the remaining capacity of the battery. Can occur in any system.
  • An object of the present invention is to suppress frequent switching of a driving state between a stopped state and an operating state in an engine that drives a generator capable of charging a battery.
  • the present invention has been made to solve at least a part of the problems described above, and can be realized as the following forms or application examples.
  • An engine control apparatus for controlling the engine in a system including an engine, a generator driven by the engine, and a battery charged with electric power generated by the generator. , A remaining capacity detector for detecting the remaining capacity of the battery; A threshold value for adjusting a restart threshold value that is a threshold value of the remaining capacity in accordance with a remaining capacity at the time of stop that is the remaining capacity when the operating state of the engine is switched from an operating state to a stopped state An adjustment unit; An engine control unit that switches the operating state of the engine from the stopped state to the operating state when the remaining capacity is equal to or less than the restart threshold; An engine control device comprising:
  • the restart threshold value is adjusted according to the remaining capacity of the battery when the operating state of the engine is switched from the operating state to the stopped state. For this reason, the restart threshold value can be adjusted so as to prevent the engine from restarting after reaching the restart threshold value within a short period of time after entering the stop state. Therefore, it is possible to prevent the engine operating state from frequently switching between the stopped state and the operating state.
  • the threshold adjustment unit sets the restart threshold to a first threshold when the remaining capacity at stop is the first remaining capacity, and the remaining capacity at stop is the first remaining capacity.
  • An engine control apparatus that sets the restart threshold value to a second threshold value that is lower than the first threshold value when the second remaining capacity is less than the remaining capacity.
  • the “first remaining capacity” and the “second remaining capacity” are not limited to the predetermined two capacities, but belong to a capacity range having a predetermined width. It has a broad meaning including the meaning of an arbitrary value (capacity).
  • the first remaining capacity means an arbitrary value (capacity) belonging to the first capacity range
  • the second remaining capacity means an arbitrary value (capacity) belonging to the second capacity range.
  • the upper limit value of the second capacity range is lower than the lower limit value of the first capacity range.
  • the engine control device can be described as follows. That is, in the engine control device according to Application Example 1, the threshold value adjustment unit sets the restart threshold value when the stop remaining capacity is an arbitrary value belonging to the first capacity range. The restart is performed when the remaining capacity at the time of stoppage is an arbitrary value belonging to a second capacity range having an upper limit value lower than a lower limit value of the first capacity range. The engine control apparatus sets the threshold value to a second threshold value that is lower than the first threshold value.
  • a state setting unit that sets one of a permission state that allows execution of stop control that prohibits starting of the engine in the stop state and a prohibition state that prohibits execution of the stop control as the state of the system And comprising The engine control unit executes the stop control when a predetermined condition including that the state of the system is the permitted state is satisfied, The engine control device, wherein the state setting unit sets the permission state as the state of the system when the remaining capacity is equal to or higher than a third threshold value that is higher than the first threshold value.
  • This configuration allows the stop control to be executed when the remaining capacity of the battery is high (higher than the first and second threshold values). Therefore, a relatively large amount of power can be ensured as the amount of power that can be supplied from the battery during the stop control.
  • the stop remaining capacity is the first remaining capacity
  • the capacity difference between the third threshold and the first threshold that is the restart threshold is small (third Smaller than the capacity difference between the threshold and the second threshold). Therefore, it is possible to shorten the period from when the engine is restarted in the prohibited state to when the remaining capacity reaches the third threshold value and enters the permitted state. In other words, the period during which the system state is the prohibited state can be shortened.
  • the state setting unit is configured such that the remaining capacity at restart, which is the remaining capacity when the operating state is switched, is the first load. It is determined whether or not the threshold value is less than or equal to a threshold value, and when the restart remaining capacity is less than or equal to the first threshold value, the prohibited state is set as the system state, and the restart remaining capacity An engine control device that sets the permission state as the state of the system when is higher than the first threshold value.
  • Application Example 5 In the engine control device according to Application Example 3 or Application Example 4, In the threshold adjustment, when the remaining capacity at the time of stoppage is equal to or lower than a fourth threshold value higher than the third threshold value and equal to or higher than the third threshold value, A fifth threshold value lower than the first threshold value and higher than the second threshold value is set as the restart threshold value, and the remaining capacity at the time of stop is the fourth threshold value.
  • the first threshold is set to the restart threshold;
  • the amount of power corresponding to the difference between the fourth threshold and the third threshold, and the amount of power corresponding to the difference between the first threshold and the fifth threshold are: Both are equal to each other, and the amount of power corresponding to the difference between the third threshold value and the first threshold value from the amount of power required in the system while the engine control unit performs the stop control.
  • the engine control device which is the amount of electric power minus.
  • the amount of power required in the system can be secured by the battery while the stop control is being executed.
  • the threshold adjustment unit includes a first power amount that is a difference between the first remaining capacity and the first threshold, and a difference between the second remaining capacity and the second threshold.
  • the engine control device adjusts the first threshold value and the second threshold value so that the second power amount is equal to the predetermined power amount.
  • a predetermined amount of power can be secured as the amount of power that can be supplied by the battery during stop control regardless of the size of the remaining capacity at the time of stop.
  • Application Example 7 In the engine control device according to Application Example 6, The engine control unit is capable of executing stop control for prohibiting start of the engine in the stop state; The engine control device, wherein the predetermined power amount is an amount of power required in the system while the engine control unit is executing the stop control.
  • the system is constituted by a moving body powered by the engine,
  • the predetermined condition includes an engine control apparatus including at least a moving speed of the moving body equal to or lower than a predetermined speed in addition to the system state being the permitted state.
  • Such a configuration makes it possible to execute stop control when the moving speed of the moving body becomes a predetermined speed or less.
  • the engine control unit estimates a user's intention to set the operating state of the engine to the operating state when the remaining capacity is higher than the restart threshold value and the operating state of the engine is the stopped state.
  • An engine control device that switches the operating state of the engine from the stopped state to the operating state when a predetermined operation is performed.
  • the user can switch the operating state of the engine to the operating state by performing a predetermined operation even when the operating state of the engine is stopped.
  • the engine control unit is capable of executing stop control for prohibiting start of the engine in the stop state;
  • the system includes a vehicle that uses the engine as a power source, The engine control device, wherein the stop control is idle stop control.
  • Application Example 11 An engine control method for controlling the engine in a system including an engine, a generator driven by the engine, and a battery charged by electric power generated by the generator. , (A) detecting a remaining capacity of the battery; (B) A restart threshold value that is a threshold value of the remaining capacity is adjusted in accordance with a remaining capacity at the time of stop that is the remaining capacity when the operating state of the engine is switched from the operating state to the stopped state. Process, (C) when the remaining capacity becomes equal to or less than the restart threshold, switching the engine operating state from the stopped state to the operating state; An engine control method comprising:
  • the restart threshold value is adjusted according to the remaining capacity of the battery when the operating state of the engine is switched from the operating state to the stopped state. For this reason, the restart threshold value can be adjusted so as to prevent the engine from restarting after reaching the restart threshold value within a short period of time after entering the stop state. Therefore, it is possible to prevent the engine operating state from frequently switching between the stopped state and the operating state.
  • step (b) when the remaining capacity at the time of stop is the first remaining capacity, the restart threshold value is set to the first threshold value, and the remaining capacity at the time of stop is the first remaining capacity.
  • An engine control method comprising a step of setting the restart threshold value to a second threshold value lower than the first threshold value when the second remaining capacity is less than the capacity.
  • the “first remaining capacity” and the “second remaining capacity” are not limited to the predetermined two capacities, but belong to a capacity range having a predetermined width. It has a broad meaning including the meaning of an arbitrary value (capacity).
  • the first remaining capacity means an arbitrary value (capacity) belonging to the first capacity range
  • the second remaining capacity means an arbitrary value (capacity) belonging to the second capacity range.
  • the upper limit value of the second capacity range is lower than the lower limit value of the first capacity range.
  • the engine control method can be described as follows. That is, in the engine control method according to the application example 11, in the step (b), when the remaining capacity at the time of stop is an arbitrary value belonging to the first capacity range, the restart threshold value is set to a first value. When the remaining capacity at the time of stoppage is an arbitrary value belonging to the second capacity range having an upper limit value lower than the lower limit value of the first capacity range.
  • the engine control method includes a step of setting a threshold value to a second threshold value lower than the first threshold value.
  • This configuration allows the stop control to be executed when the remaining capacity of the battery is high (higher than the first and second threshold values). Therefore, a relatively large amount of power can be ensured as the amount of power that can be supplied from the battery during the stop control.
  • the stop remaining capacity is the first remaining capacity
  • the capacity difference between the third threshold and the first threshold that is the restart threshold is small (third Smaller than the capacity difference between the threshold and the second threshold). Therefore, it is possible to shorten the period from when the engine is restarted in the prohibited state to when the remaining capacity reaches the third threshold value and enters the permitted state. In other words, the period during which the system state is the prohibited state can be shortened.
  • the remaining capacity at restart which is the remaining capacity when the operating state is switched, is It is determined whether or not the threshold value is less than or equal to a threshold value, and when the restart remaining capacity is equal to or less than the first threshold value, the prohibited state is set as the system state, and the remaining at restart time
  • An engine control method comprising a step of setting the permission state as a state of the system when a capacity is higher than the first threshold value.
  • step (b) In the engine control method according to Application Example 13 or Application Example 14, In the step (b), when the remaining capacity at the time of stoppage is not more than a fourth threshold value higher than the third threshold value and not less than the third threshold value, A fifth threshold value lower than the first threshold value and higher than the second threshold value is set as the restart threshold value, and the remaining capacity at the time of stop is the fourth threshold value.
  • the amount of power corresponding to the difference between the fourth threshold and the third threshold, and the amount of power corresponding to the difference between the first threshold and the fifth threshold are: Both are equal to each other, and the amount of power obtained by subtracting the amount of power corresponding to the difference between the third threshold value and the first threshold value from the amount of power required in the system during execution of the stop control.
  • the amount of power required in the system can be secured by the battery while the stop control is being executed.
  • the present invention can be realized in various modes, for example, a computer program for realizing the functions of a vehicle or an engine control device, a computer-readable recording medium in which the computer program is recorded, and the like. Can be realized.
  • FIG. 1 is an explanatory diagram showing the configuration of a vehicle to which the engine control device of the present invention is applied.
  • Vehicle 100 performs idle stop control (also referred to as start-and-stop control) that prohibits engine operation when vehicle 100 is stopped.
  • the vehicle 100 includes an engine 30, a transmission 31, drive wheels 55, a differential gear 50, a starter 32, a drive mechanism 33, an alternator 40, a battery 20, an auxiliary machine 70, and a battery current sensor 21.
  • ECU electronice control unit
  • As the vehicle 100 for example, an automobile can be employed.
  • Engine 30 is an internal combustion engine that generates power by burning fuel such as gasoline or light oil.
  • the output of the engine 30 is controlled by the electronic control unit 10 according to the amount of depression of an accelerator pedal (not shown) operated by the operator.
  • the transmission 31 executes a change in the gear ratio (so-called shift change).
  • the power (rotational speed) of the engine 30 is shifted by the transmission 31 and transmitted to the left and right drive wheels 55 through the differential gear 50 as desired rotational speed and torque.
  • the power of the engine 30 is changed according to the amount of depression of the accelerator pedal, and is transmitted to the drive wheels 55 via the transmission 31, so that the vehicle 100 is accelerated and decelerated.
  • the starter 32 is a cell motor that starts the engine 30 with electric power supplied from the battery 20. Normally, when an ignition switch (not shown) is turned on by an operator when starting operation of the stopped vehicle 100, the engine 30 is started by the starter 32. As will be described below, the starter 32 is also used when the engine 30 is restarted from the idle stop state.
  • the “idle stop state” means a state in which the engine 30 is stopped by the idle stop control.
  • the drive mechanism 33 transmits the power of the engine 30 to the alternator 40.
  • a belt drive can be adopted.
  • the alternator 40 generates power using the power of the engine 30 transmitted through the drive mechanism 33.
  • the electric power generated by such power generation is used for charging the battery 20 via an inverter (not shown).
  • the battery 20 is a lead storage battery as a DC power source with a voltage of 12 V, and supplies power to the auxiliary machine 70 in addition to the engine 30. In addition, it can replace with lead acid battery and can also employ
  • Auxiliary machine 70 is a peripheral device that operates with electric power supplied from battery 20.
  • a lighting system device including a head lamp and a tail lamp, a wiper, an air conditioner, an electric fan for a radiator, and the like are applicable.
  • Battery current sensor 21 detects the charge / discharge current of battery 20.
  • the alternator current sensor 41 detects the output current of the alternator 40.
  • the vehicle speed sensor 51 detects the rotational speed of the drive wheel 55.
  • the brake pedal sensor 61 detects the presence or absence of a predetermined depression amount in a brake pedal (not shown). Each of these sensors 21, 41, 51, 61 is electrically connected to the electronic control unit 10.
  • the electronic control unit 10 includes a CPU (Central Processing Unit) (not shown), a ROM (Read Only Memory) (not shown), and a RAM (Random Access Memory) (not shown), and controls the entire vehicle 100.
  • the electronic control unit 10 is electrically connected to various actuators such as the starter 32 and the alternator 40 in addition to the sensors 21, 41, 51, 61 described above.
  • a CPU (not shown) executes a computer program stored in the ROM, thereby executing an engine control unit 11, a transmission control unit 12, an idle stop control unit 13, a state control unit 14, a remaining capacity calculation unit 15, and a threshold adjustment. It functions as the unit 16.
  • the engine control unit 11 detects the rotation speed of the drive wheel 55 detected by the vehicle speed sensor 51, the amount of depression of the brake pedal detected by the brake pedal sensor 61, and the notified accelerator detected by an accelerator opening sensor (not shown). Based on the opening (the amount of depression of an accelerator pedal not shown), the fuel injection amount, the throttle opening, etc. are adjusted to control the operating state of the engine 30. Further, the engine control unit 11 stops the fuel injection to the engine 30 and stops the engine 30 according to a request from the idle stop control unit 13, or controls the starter 32 according to a request from the idle stop control unit 13. Then, the stopped engine 30 is restarted.
  • the transmission control unit 12 includes the rotational speed of the driving wheel 55 notified from the vehicle speed sensor 51, the accelerator opening notified from an accelerator opening sensor (not shown), and shift position information notified from a shift position sensor (not shown). Based on the above, a hydraulic actuator (not shown) is controlled to control the gear ratio of the transmission 31.
  • the idle stop control unit 13 is a functional unit that executes idle stop control, and prohibits the operation of the engine 30 when the vehicle 100 is stopped via the engine control unit 11. Further, when the restart of the engine 30 is determined during the execution of the idle stop control, the idle stop control unit 13 ends the idle stop control and sends a request to the engine control unit 11 to restart the engine 30. Moreover, the idle stop control part 13 performs the idle stop start determination process and the restart determination process which are mentioned later. In the restart determination process, the restart of the engine 30 is determined when the remaining capacity (remaining battery capacity) of the battery 20 is equal to or lower than a predetermined threshold value or when a predetermined operation is performed. Detailed procedures of the restart determination process and the idle stop start determination process will be described later.
  • the state control unit 14 executes state control processing to be described later so that the state of the vehicle 100 is allowed to execute idle stop control (hereinafter referred to as “permitted state”), and performs idle stop control.
  • the state is set to one of a prohibited state (hereinafter referred to as “prohibited state”), and a flag indicating the state of the vehicle 100 (a flag indicating a permitted state or a flag indicating a prohibited state) is written in a RAM (not shown).
  • a flag indicating the state of the vehicle 100 a flag indicating a permitted state or a flag indicating a prohibited state
  • the remaining capacity calculation unit 15 calculates the remaining capacity of the battery 20.
  • SOC State Of Charge
  • the SOC is an index indicating how much power remains in the battery 20, and is defined as a ratio obtained by dividing the amount of power remaining in the battery 20 by the amount of electricity stored when the battery 20 is fully charged. Is done.
  • the remaining capacity calculation unit 15 calculates the current SOC of the battery 20 based on the charge / discharge current (also referred to as “battery current”) of the battery 20 detected by the battery current sensor 21.
  • the remaining capacity calculation unit 15 calculates the current SOC by integrating the charging / discharging current with the charging current of the battery 20 as a positive value and the discharging current of the battery 20 as a negative value.
  • the calculated SOC is stored in a RAM (not shown) included in the electronic control unit 10.
  • the calculation of the current SOC can be performed periodically (for example, in units of several seconds). Also, the current SOC can be calculated each time the current SOC is used in various processes to be described later.
  • the threshold adjustment unit 16 sets a threshold (threshold for the remaining capacity of the battery 20) used in the restart determination process.
  • the electronic control unit 10 corresponds to the engine control device in the claims. Further, the battery current sensor 21 and the remaining capacity calculation unit 15 are charged to the remaining capacity detection unit in the claims, the engine control unit 11 and the idle stop control unit 13 are charged to the engine control unit in the claims, and the state control unit 14 is charged. Respectively corresponding to the state setting section in the range.
  • FIG. 2 is a flowchart showing the procedure of the idle stop start determination process in the present embodiment.
  • the idle stop start determination process is a process for determining whether to start the idle stop control process.
  • the idle stop control unit 13 determines whether the amount of depression of the brake pedal is a predetermined amount or more and the speed of the vehicle 100 is 0 (zero). It is determined whether or not (step S105). If it is determined that the amount of depression of the brake pedal is equal to or greater than the predetermined amount and the speed of the vehicle 100 is 0 (step S105: YES), the idle stop control unit 13 is in the permitted state. Is determined (step S110). The idle stop control unit 13 can determine whether or not the state of the vehicle 100 is in a permitted state by reading a flag indicating the state of the vehicle 100 from a RAM (not shown) included in the electronic control unit 10. In the initial state, a prohibition flag is written in a RAM (not shown).
  • step S110 determines whether the state of the vehicle 100 is the permitted state (step S110: YES). If it is determined in step S110 that the state of the vehicle 100 is the permitted state (step S110: YES), the idle stop control unit 13 determines the start of the idle stop control (step S115). For example, when the vehicle 100 is decelerated due to the operator depressing a brake pedal while the vehicle 100 is traveling and the vehicle 100 is stopped, if the vehicle 100 is in the permitted state, the start of the idle stop control is determined. Is done.
  • the idle stop control unit 13 executes the idle stop control. Specifically, the idle stop control unit 13 requests the engine control unit 11 to stop the engine 30 and stops the driving of the engine 30.
  • step S105 when the amount of brake depression is less than the predetermined amount or the speed of the vehicle 100 is not zero (step S105: NO), and in step S110, the state of the vehicle 100 is not in the permitted state (ie, the prohibited state). (Step S110: NO), the process returns to step S105 without executing step S115.
  • the idle stop start determination process described above is repeatedly executed until the ignition switch of the vehicle 100 is turned off.
  • FIG. 3 is a flowchart showing the procedure of the restart determination process in the present embodiment.
  • the idle stop control unit 13 starts the restart determination process when the idle stop control is started.
  • the restart determination process is a process for determining whether or not to restart the engine 30 during execution of the idle stop control.
  • the idle stop control unit 13 determines whether there is a predetermined operation that triggers restart of the engine 30 (step S205).
  • a predetermined operation an operation in which the depression amount of the brake pedal changes from a predetermined amount or more to less than a predetermined amount (that is, an operation in which the operator lifts his / her foot from the brake pedal) is employed. If the depression of the brake pedal changes less than a predetermined amount, then the operator's intention to restart the engine 30 and drive the vehicle 100 is estimated.
  • step S205 determines restart of the engine 30 (step S220). On the other hand, if it is determined in step S205 that there is no predetermined operation that triggers the restart, the idle stop control unit 13 compares the current SOC with a predetermined threshold value, and compares the current SOC. Is less than or equal to a threshold value (step S210).
  • the threshold value used in step S210 is also referred to as a “restart threshold value”.
  • step S210 when it is determined that the current SOC is equal to or less than the restart threshold value (step S210: YES), the idle stop control unit 13 determines restart of the engine 30 (step S220).
  • step S220 is executed and the restart of the engine 30 is determined, the idle stop control unit 13 stops the idle stop control and controls the engine control unit 11 to restart the engine 30.
  • step S210 If it is determined in step S210 described above that the current SOC is higher than the restart threshold value, the process returns to step S205 described above. Therefore, in this case, the restart of the engine 30 (step S220) is not executed, and the idle stop control is continuously executed.
  • the restart determination process described above is repeatedly executed until the ignition switch of the vehicle 100 is turned off.
  • FIG. 4 is a flowchart showing the procedure of threshold adjustment processing according to the present embodiment.
  • the threshold adjustment unit 16 starts threshold adjustment processing when the ignition switch of the vehicle 100 is turned on.
  • the threshold adjustment process is a process for adjusting the restart threshold used in step S210 of the restart determination process described above.
  • the threshold adjustment unit 16 determines whether or not idle stop control has been started (step S305). When step S305 is first executed after the idle stop control is started, it is determined that the idle stop control is started.
  • step S305 When it is determined in step S305 that the idle stop control has been started (step S305: YES), the threshold value adjustment unit 16 determines the SOC when the idle stop control is started (hereinafter referred to as “starting SOC”). Then, it is determined whether or not it is higher than a predetermined threshold value (step S315).
  • the threshold value used in step S315 is hereinafter referred to as “permission threshold value”.
  • step S320 When the starting SOC is higher than the permission threshold (step S315: YES), the threshold adjuster 16 sets the restart threshold to the first restart threshold (step S320). This first restart threshold is lower (smaller) than the permission threshold.
  • threshold adjustment unit 16 sets the restart threshold value to the second restart threshold value (step S325).
  • This second restart threshold is lower (smaller) than the first restart threshold.
  • the first restart threshold value in the present embodiment corresponds to the first threshold value in the claims. Further, the second restart threshold value of the present embodiment corresponds to the second threshold value in the claims.
  • step S305 When it is determined in the above-described step S305 that the idle stop control is not started (when step S305 is executed after the second time after the start of the idle stop control or when the idle stop control has never been performed).
  • the threshold adjustment unit 16 maintains the currently set value as the restart threshold.
  • the restart threshold value is higher than the second restart threshold value (first restart threshold value). Is set. Further, when the starting SOC is lower than the permission threshold, a value lower than the first restart threshold (second restart threshold) is set as the restart threshold.
  • the threshold adjustment process described above is repeatedly executed until the ignition switch of the vehicle 100 is turned off.
  • FIG. 5 is a flowchart showing the procedure of the state control process of this embodiment.
  • the state control process is a process for setting the state of the vehicle 100 to either the permitted state or the prohibited state.
  • the state control unit 14 determines whether or not the restart of the engine 30 has been determined (step S405). After step S405 is first executed after restart of the engine 30 is newly determined, it is determined that restart of the engine 30 is determined.
  • step S405 determines whether or not the SOC at the time of restart is equal to or less than the first restart threshold value (step S405). S410). If it is determined that the SOC at the time of restart is equal to or less than the first restart threshold value (step S410: YES), state control unit 14 sets the state of vehicle 100 to the “prohibited state” (step S415). .
  • step S410: NO when it is determined that the SOC at the time of restart is not less than or equal to the first restart threshold (that is, the SOC at the time of restart is higher than the first restart threshold) (step S410: NO), the state Control unit 14 maintains the state of vehicle 100 in the “permitted state” (step S420).
  • step S405 when it is determined that the restart of the engine 30 has not been determined (when the step S405 is executed after the second time after the restart determination of the engine 30 is performed, or the restart determination is performed once) If not, the state control unit 14 determines whether or not the current SOC is equal to or greater than the permission threshold (step S425).
  • State controller 14 determines that the state of vehicle 100 is “permitted” (step S430) when it is determined that the current SOC is greater than or equal to the permitted threshold (step S425: YES). On the other hand, when it is determined that the current SOC is lower than the permission threshold value (step S425: NO), the state control unit 14 maintains the current state (step S435).
  • step S 415) and “permit state” mean that flags indicating the respective states are written in a RAM (not shown) of the electronic control unit 10. To do. Further, the above-mentioned “continue in the permitted state” (step S420) and “maintain the current state” (step S435) do not overwrite the flag written in the RAM (not shown) of the electronic control unit 10 ( Leave it as it is).
  • the aforementioned permission threshold corresponds to the third threshold in the claims.
  • FIG. 6 is an explanatory diagram showing an example of a change over time in the remaining capacity (SOC) of the battery.
  • SOC remaining capacity
  • the horizontal axis indicates time
  • the vertical axis indicates the remaining capacity (SOC) of the battery 20.
  • x% is set as the permission threshold
  • y% is set as the first restart threshold
  • z% is set as the second restart threshold.
  • the SOC at the start (time t0) is higher than the permission threshold value x%. Further, at the start in FIG.
  • the idle stop control is executed, the state of the vehicle 100 is the permitted state, and y% is set as the restart threshold value.
  • y% is set as the restart threshold value.
  • 85% is set as the permission threshold value (x%)
  • 84% is set as the first restart threshold value (y%)
  • the second restart threshold value is set.
  • (z%) 83% can be set.
  • step S210 of FIG. 3 When the idle stop control is executed, the SOC of the battery 20 decreases with the power consumption by the auxiliary device 70. As shown in FIG. 6, when the SOC reaches the first restart threshold value at time t1, it is determined in step S210 of FIG. 3 that the current SOC is equal to or less than the restart threshold value (step S210). : YES). As a result, restart of the engine 30 is determined (step S220), and the engine 30 is restarted. Further, since the engine 30 is restarted, steps S405 and S410 shown in FIG. 5 are executed. Here, since the SOC at the time of restart is the first restart threshold value (step S410: YES), step S415 is executed, and the state of the vehicle 100 changes to the prohibited state (step S415).
  • step S425 of FIG. 5 the SOC of battery 20 rises after time t1.
  • step S425: YES the SOC of battery 20 reaches permission threshold value x% at time t2
  • the state of vehicle 100 is determined. Changes from the prohibited state to the permitted state (step S430). In the example of FIG. 6, it is assumed that the vehicle 100 starts traveling between time t1 and time t2.
  • step S115 in FIG. 2 the start of the idle stop control is determined because the state of the vehicle 100 is the permitted state (step S115 in FIG. 2), and the idle stop control is started.
  • step S320 shown in FIG. 4 is executed, and the restart threshold value is the first restart value.
  • the threshold value (y%) is set.
  • step S220 in FIG. 3 when the operator removes his / her foot from the brake pedal (when the amount of depression of the brake pedal becomes less than a predetermined amount), restart of engine 30 is determined (step S220 in FIG. 3), and engine 30 is restarted. To do.
  • the SOC is higher than the first restart threshold and lower than the permission threshold. Therefore, step S420 shown in FIG. 5 is executed, and the state of vehicle 100 is maintained in the permitted state.
  • step S115 in FIG. 2 when the operator depresses the brake and the vehicle stops, the vehicle 100 is in the permitted state, so the start of idle stop control is determined (step S115 in FIG. 2), and the idle stop control is started.
  • step S325 shown in FIG. 4 is executed and restarted unlike at time t3.
  • the threshold value is set to the second restart threshold value (z%). Therefore, even if the first restart threshold is reached immediately after the start of the idle stop control after time t5, the engine 30 does not restart (step S210: NO), and the engine 30 is stopped and restarted. Frequent occurrence is suppressed. As shown in FIG.
  • the SOC at time t5 is lower than the SOC at time t3. Therefore, taking these two SOCs as an example, the SOC at time t3 corresponds to the first remaining capacity in the claims, and the SOC at time t5 corresponds to the second remaining capacity in the claims.
  • restart threshold value (second restart threshold value) at time t6
  • restart of the engine 30 is determined (step S220 in FIG. 3), and the engine 30 is restarted. Further, at time t6, restart of engine 30 is determined, and since the SOC at this time is lower than the first restart threshold, the state of vehicle 100 changes from the permitted state to the prohibited state (step S415). .
  • the subsequent operation at time t7 is the same as the above-described operation at time t2, and thus description thereof is omitted.
  • the operation at time t8 is the same as the operation at time t3
  • the operation at time t9 is the same as the operation at time t4
  • the operation at time t10 is the same as the operation at time t5. Note that when the idle stop control is started at time t10, the SOC decreases.
  • step S220 in FIG. 3 when the operator removes his / her foot from the brake pedal, restart of the engine 30 is determined (step S220 in FIG. 3), and the engine 30 is restarted.
  • the SOC is a value lower than the first restart threshold as shown in FIG. Therefore, step S415 shown in FIG. 5 is executed, and the state of vehicle 100 changes from the permitted state to the prohibited state.
  • the subsequent operation at time t12 is the same as the above-described operation at times t2 and t7, and thus the description thereof is omitted.
  • the restart threshold value is adjusted according to the starting SOC (the SOC when the idle stop control is started), so the SOC when the idle stop control is started is adjusted. Due to the fact that is a value close to the restart threshold, it is possible to suppress frequent switching of the operating state of the engine 30 between the operating state and the stopped state.
  • the restart threshold when the starting SOC is lower (when the starting SOC is equal to or lower than the permission threshold), the restart threshold is set to a lower value (second restart threshold). Therefore, even if the starting SOC is a low value, a period during which the idle stop control can be performed can be secured for a predetermined period or more. In other words, even if the SOC at the start of the idle stop control is a low value, it is possible to secure a predetermined amount or more of the amount of power supplied from the battery 20 during the idle stop control.
  • the first restart that is a relatively high value (a value higher than the second restart threshold) as the restart threshold. Since the threshold value is set, the SOC increases due to the restart of the engine 30 after the state of the vehicle 100 is prohibited due to the decrease in the SOC to the first restart threshold value. It is possible to shorten the period until exceeding the threshold value and entering the permitted state (that is, the period during the prohibited state). Further, when the starting SOC is higher than the permission threshold, the engine 30 is restarted before the SOC is lowered to the second restart threshold, so that the charging of the battery 20 with the SOC being low is started. Discharge can be suppressed. Therefore, deterioration of the battery 20 can be suppressed and the life of the battery 20 can be prevented from being shortened.
  • the threshold value of the starting SOC that is used as a reference when determining the restart threshold value is only the permission threshold value (x%), but instead, a plurality of threshold values are used. A value can be set.
  • the restart threshold value was two, the 1st restart threshold value (y%) and the 2nd restart threshold value (z%), instead of this, Three or more thresholds can be set.
  • FIG. 7 is a flowchart showing a procedure of threshold adjustment processing in the first modification.
  • the threshold value adjustment process of FIG. 7 is different from the threshold value adjustment process of the embodiment shown in FIG. 4 in that step S317 and step S319 are additionally executed.
  • the other processing procedures and the apparatus configuration in the first modification are the same as those in the above embodiment, and thus the description thereof is omitted.
  • two threshold values of the start SOC that are used as a reference when determining the restart threshold value are set, and three restart threshold values are set.
  • the threshold value of the starting SOC that is used as a reference when determining the restart threshold value is the same as the threshold value (x% in FIG. 6) used in step S315 of the above embodiment.
  • a threshold hereinafter referred to as “first permission threshold”
  • a second permission threshold higher than the first permission threshold are set.
  • a third restart threshold is set as the restart threshold. The third restart threshold is higher than the second restart threshold and lower than the first restart threshold.
  • step S315 when it is determined in step S315 described above that the starting SOC is larger than the first permission threshold (step S315: YES), the threshold adjuster 16 determines that the starting SOC is It is determined whether it is larger than the second permission threshold value (step S317).
  • step S320 When it is determined that the starting SOC is larger than the second permission threshold value (step S317: YES), step S320 described above is executed, and the first restart threshold value is set as the restart threshold value. .
  • step S317: NO threshold adjustment unit 16 sets the restart threshold value to the third restart threshold value. (Step S319). If it is determined in step S315 described above that the starting SOC is equal to or lower than the first permission threshold value (step S315: NO), step S325 described above is executed, and the second threshold value is set as the restart threshold value. A starting threshold is set.
  • FIG. 8 is an explanatory diagram schematically showing an example of the threshold adjustment process in the first modification.
  • the uppermost stage shows the change in the SOC of the battery 20 in the above-described embodiment.
  • the second stage from the top shows the change in the SOC of the battery 20 in the first modification.
  • the lowermost stage shows the evaluation results of the examples and the modified examples.
  • the horizontal axis indicates SOC (%) or electric quantity (As).
  • the upper side indicates the permitted state
  • the lower side indicates the prohibited state.
  • the permission threshold is x%, the first restart threshold is y%, and the second restart threshold is z%. Respectively.
  • the first permission threshold is x%
  • the second permission threshold is s%
  • the first restart threshold is y%
  • the second restart threshold is z%.
  • the third restart threshold value is set to t%, respectively.
  • the amount of electricity required for idle stop control is 2000 As.
  • the difference in the amount of electricity between the permission threshold value x% and the first restart threshold value y% corresponds to 1500 As.
  • the difference in the amount of electricity between the first restart threshold value y% and the second restart threshold value z% corresponds to 1500 As.
  • the difference in the amount of electricity between the first restart threshold value y% and the third restart threshold value t% corresponds to 500 As.
  • the restart threshold value is set to the second restart threshold value z%.
  • the amount (2000 As) can be secured in the battery 20 (can be secured when the difference in the amount of electricity between the starting SOC and the first restart threshold y% is 500 As or more).
  • the restart threshold Is set to the first restart threshold value y%, and the amount of electricity (2000 As) necessary for the idle stop control can be secured in the battery 20.
  • the starting SOC is the SOC corresponding to the remaining capacity obtained by adding the allowable threshold value x% or more and the allowable threshold value x% by the amount of electricity less than 500 As (case 2).
  • the restart threshold value is set to the first restart threshold value y%, and the amount of electricity necessary for the idle stop control cannot be secured in the battery 20. Therefore, in this case, if the amount of electricity consumed per unit time (power amount) during the idle stop control is the same, the idle stop control period is shorter than that in case 3.
  • the cases 1 and 3 are the same as the above-described embodiment.
  • the restart threshold value is set to the third restart threshold value t%, so that the restart threshold value is set lower by 500 As compared to case 3. Therefore, in the case 2 of the first modification, the amount of electricity (2000 As) necessary for the idle stop control can be secured in the battery 20.
  • the amount of electricity (2000 As) necessary for the idle stop control can be ensured by appropriately setting the third restart threshold value. More specifically, the difference in electric quantity (1500 As) between the first permission threshold (x%) and the first restart threshold (y%), and the electric quantity required for idle stop control (2000 As) By setting the SOC lower than the first restart threshold value (y%) by the amount of electricity (500 As) corresponding to the difference from the first restart threshold value (t%), the idle stop control is performed. It is possible to secure the amount of electricity (2000 As) necessary for the operation. Note that the first restart threshold value (y%) of the first modification corresponds to the first threshold value in the claims.
  • the second restart threshold value (z%) of the first modification is the second threshold value in the claims
  • the third restart threshold (t%) of the first modification is in the claims.
  • the first permission threshold value (x%) of Modification 1 is the third threshold value in the claims
  • the second permission threshold value (s%) of Modification 2 is This corresponds to the fourth threshold value in the claims.
  • the restart threshold value is a predetermined value, but instead, a value that is dynamically set according to the starting SOC can be adopted. .
  • an SOC value lower by a predetermined amount than the starting SOC can be set as the restart threshold value.
  • the amount of electricity necessary for the idle stop control can be secured in the battery 20 by setting the SOC corresponding to the amount of electricity necessary for the idle stop control as the predetermined amount.
  • the engine control device (electronic control unit 10) is applied to the vehicle 100 that performs the idle stop control, but the present invention is not limited to this.
  • the present invention can be applied to any vehicle that restarts the engine and changes the operating state of the engine from the stopped state to the operating state.
  • an EV (Electric Vehicle) travel mode that travels using a motor driven by power supplied from a battery as a power source, and a hybrid that travels using an engine as a power source and charges the battery by regenerative power generation during deceleration
  • the present invention can be applied to a vehicle having an automobile (HV) driving mode and switching these modes according to the remaining capacity of the battery.
  • HV automobile
  • the HV running mode determination process is executed instead of the restart determination process described above.
  • execution of the HV traveling mode is determined when the current SOC is equal to or lower than a predetermined threshold value or when there is a predetermined operation for entering the HV traveling mode.
  • the threshold adjustment process it is determined whether or not the execution of the EV travel mode has started instead of step S305.
  • step S315 one of two different values is determined in the HV traveling mode determination process according to whether or not the SOC when the execution of the EV traveling mode is started is higher than a predetermined threshold value.
  • the threshold value to be used can be set (steps S320 and S325). With such a configuration, frequent switching between EV traveling and HV traveling can suppress the frequent switching of the engine operating state between the stopped state and the driving state, thereby suppressing discomfort to the operator. can do.
  • the vehicle 100 is an automobile, but the present invention can be applied to an arbitrary vehicle such as a motorcycle as well as an automobile. Furthermore, the present invention can be applied not only to vehicles but also to any system. For example, the present invention can be applied to various moving bodies such as ships and robots. Further, the present invention can be applied to a power generation system that uses a battery and an engine as a stationary power source. That is, in general, in any system having an engine, a generator driven by the engine, and a battery charged with electric power generated by the generator, the present invention is applied to an engine control apparatus for controlling the engine. Can be applied.
  • the predetermined operation in step S205 of the restart determination process of the above embodiment is an operation in which the depression amount of the brake pedal changes from a predetermined amount or more to less than a predetermined amount, but the present invention is limited to this. is not.
  • restarting the engine 30 such as changing the shift lever from the N (neutral) range to the D (drive) range, depressing the clutch pedal in a manual mission vehicle, or turning on the air conditioning activation switch.
  • Arbitrary operations in which the user's intention to be performed can be inferred can be adopted.
  • step S205 not only a predetermined operation by the operator but also any event that can trigger the restart of the engine 30 (except for a decrease in SOC) can be adopted as a target for determining whether or not the occurrence has occurred in step S205.
  • an event that “the temperature of an evaporator used for air conditioning has exceeded a threshold value” can be employed.
  • the temperature of the evaporator rises, the cooling efficiency of the air conditioning (cooling) decreases.
  • the temperature of the evaporator exceeds the threshold value
  • restart of engine 30 may be determined (execution of step S220) regardless of the current SOC value.
  • the determination condition of step S105 includes a condition that “the speed of the vehicle 100 is 0 (zero)”. Instead of this condition, “the speed of the vehicle 100 is a predetermined speed ( For example, the condition of “5 km / h or less” can be employed.
  • the conditions for starting the idle stop control are “the brake depression amount is a predetermined amount or more and the speed of the vehicle 100 is zero” (step S105: YES) and “the vehicle 100 Although the state is “permitted” (step S110: YES), the present invention is not limited to this.
  • any condition that allows (allows) the operation state of the engine 30 to be in the stopped state can be employed.
  • the vehicle is not in a state of climbing the slope”
  • the evaporator temperature is not higher than a predetermined temperature
  • the temperature of the engine 30 is not higher than a predetermined temperature
  • the temperature of the battery 20 is a predetermined temperature It is possible to adopt conditions such as “the following” or “not in a state where the steering wheel is turned (a state where the vehicle is turned right or left)”.
  • SYMBOLS 100 Vehicle 10 ... Electronic control unit (ECU) DESCRIPTION OF SYMBOLS 11 ... Engine control part 12 ... Transmission control part 13 ... Idle stop control part 14 ... State control part 15 ... Remaining capacity calculation part 16 ... Threshold adjustment part 20 ... Battery 21 ... Battery current sensor 30 ... Engine 31 ... Transmission 32 ... Starter 33 ... Drive mechanism 40 ... Alternator 41 ... Alternator current sensor 50 ... Differential gear 51 ... Vehicle speed sensor 55 ... Driving wheel 61 ... Brake pedal sensor 70 ... Auxiliary equipment

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

Abstract

L'invention concerne un dispositif de commande de moteur utilisé pour commander un moteur dans un système comportant un générateur qui est entraîné par le moteur et une batterie qui est chargée en énergie électrique générée par le générateur. Le dispositif de commande de moteur comporte : une unité de détection de capacité restante servant à détecter la capacité restante de la batterie ; une unité de réglage de valeur seuil servant à régler une valeur seuil de redémarrage qui est la valeur seuil de la capacité restante en fonction d'une capacité restante de temps d'arrêt qui est la capacité restante lorsque l'état d'exploitation du moteur passe d'un état de marche à un état d'arrêt ; et une unité de commande de moteur servant à faire passer l'état d'exploitation du moteur de l'état d'arrêt à l'état de marche lorsque la capacité restante devient inférieure ou égale à la valeur seuil de redémarrage.
PCT/JP2012/001529 2012-03-06 2012-03-06 Dispositif et procédé de commande de moteur WO2013132531A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017044175A (ja) * 2015-08-28 2017-03-02 日産自動車株式会社 内燃機関の制御装置
US20220032900A1 (en) * 2020-08-03 2022-02-03 Ford Global Technologies, Llc Default charging of automotive battery while parked

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JP2009292261A (ja) * 2008-06-04 2009-12-17 Toyota Motor Corp ハイブリッド自動車およびその制御方法
JP2010052610A (ja) * 2008-08-29 2010-03-11 Fujitsu Ten Ltd ハイブリット車の制御装置、及び制御方法
JP2010234873A (ja) * 2009-03-30 2010-10-21 Nippon Soken Inc ハイブリッド車およびその制御方法
JP2011245969A (ja) * 2010-05-26 2011-12-08 Toyota Motor Corp 車両の制御装置

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Publication number Priority date Publication date Assignee Title
JP2009292261A (ja) * 2008-06-04 2009-12-17 Toyota Motor Corp ハイブリッド自動車およびその制御方法
JP2010052610A (ja) * 2008-08-29 2010-03-11 Fujitsu Ten Ltd ハイブリット車の制御装置、及び制御方法
JP2010234873A (ja) * 2009-03-30 2010-10-21 Nippon Soken Inc ハイブリッド車およびその制御方法
JP2011245969A (ja) * 2010-05-26 2011-12-08 Toyota Motor Corp 車両の制御装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017044175A (ja) * 2015-08-28 2017-03-02 日産自動車株式会社 内燃機関の制御装置
US20220032900A1 (en) * 2020-08-03 2022-02-03 Ford Global Technologies, Llc Default charging of automotive battery while parked
US11560134B2 (en) * 2020-08-03 2023-01-24 Ford Global Technologies, Llc Default charging of automotive battery while parked

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