Hybrid vehicle control method and hybrid vehicle control device

Abstract

One embodiment of the present invention is a method for controlling a hybrid vehicle. In the control method for the hybrid vehicle, when it is detected that the driver gets off the vehicle in a state in which the engine is operable, a notification sound that notifies that the engine is operable is output to the outside of the hybrid vehicle. Furthermore, when external power supply for supplying power of the battery to the external device is performed in a state in which the engine is operable, the notification sound is muffled when it is detected that the driver gets off the vehicle and a predetermined specific operation input is detected.

Description

Technical Field

[0001] The invention relates to a control method and a control device for a hybrid vehicle. Background Art

[0002] JP2017-155604A discloses an engine control device that determines whether a condition requiring the engine to be stopped in advance is present after a driver gets off a vehicle, and automatically stops the engine in operation if it is determined that a condition requiring the engine to be stopped in advance is present. Summary of the invention

[0003] A hybrid vehicle has an engine for driving the vehicle or for generating electricity. Therefore, even if the engine is in an operable state, when the driver leaves the vehicle, the hybrid vehicle sometimes outputs a predetermined notification sound to the outside of the vehicle in order to notify that the engine is still in an operable state. Furthermore, the notification sound is continuously output until the driver returns to the hybrid vehicle or the engine becomes inoperable through a predetermined operation.

[0004] On the other hand, hybrid vehicles are equipped with large-capacity batteries, so they sometimes have the ability to supply battery power to external devices as needed during outdoor activities such as camping, disasters, etc.

[0005] (Power supply) external power supply function. Moreover, regarding the hybrid vehicle that notifies that the engine is in a state where it can be operated, a notification sound is output even when external power supply is performed. However, when external power supply is performed, the driver often gets off the vehicle while the engine is in a state where it can be operated. Therefore, when external power supply is performed, if the notification sound that notifies that the engine is in a state where it can be operated is continuously output, it may exceed the original meaning and cause discomfort to the driver or other people in the vicinity of the hybrid vehicle.

[0006] An object of the present invention is to provide a control method and a control device for a hybrid vehicle that output a notification sound for notifying that an engine is in an operable state in principle and that can mute the notification sound according to the situation.

[0007] One embodiment of the present invention is a control method for a hybrid vehicle. In the control method for a hybrid vehicle, when a driver's exit from the vehicle is detected while the engine is in an operable state, a notification sound is outputted to the outside of the hybrid vehicle to notify that the engine is in an operable state. Furthermore, when external power is supplied to an external device by a battery while the engine is in an operable state, when the driver's exit from the vehicle is detected and a predetermined specific operation input is detected, the notification sound is muted. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a block diagram showing a schematic configuration of a hybrid vehicle.

[0009] Figure 2 This is an explanatory diagram showing the necessity of notification and the state related to the output of notification sound.

[0010] Figure 3 This is a block diagram showing the configuration of a controller related to output and silencing of a notification sound.

[0011] Figure 4 This is a flowchart of the scenario in which the mute flag is changed from the cleared state to the set state.

[0012] Figure 5 This is a flowchart of a scenario in which the mute flag is changed from a set state to a clear state.

[0013] Figure 6 This is a flowchart related to the output and silencing of notification sounds.

[0014] Figure 7 This is a flowchart related to the transition from the notification state γ to the notification state β.

[0015] Figure 8 This is a flowchart related to the transition from the notification state β to the notification state α, and the transition from the notification state γ to the notification state α.

[0016] Fig. 9 This is a timing diagram showing the output status of the notification sound, etc.

[0017] Fig.10 This is a timing diagram showing different output states of notification sounds, etc.

[0018] Fig.11 This is a flowchart related to a modification example. DETAILED DESCRIPTION

[0019] [Implementation Method]

[0020] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0021] Figure 1 is a block diagram showing a schematic structure of a hybrid vehicle 100. Figure 1As shown, the hybrid vehicle 100 of the present embodiment is a so-called series hybrid vehicle, which has a battery 10, a vehicle drive system 11, a power generation system 12, an external power supply system 13, an external notification system 14 and a controller 15. Among them, the vehicle drive system 11, the power generation system 12 and the external power supply system 13 constitute a first power system (first circuit) driven with a higher power in order to generate power using electricity. The various parts constituting the first power system are energized in common. In addition, the external notification system 14 and other auxiliary machines (including components not shown) constitute a second power system (second circuit) driven with a lower power in order to use electricity as a signal, etc. The various parts constituting the second power system are energized in common. In addition, as long as there is an engine (internal combustion engine) for vehicle driving or for power generation, the hybrid vehicle 100 can also be a parallel hybrid vehicle or any other type of hybrid vehicle.

[0022] The battery 10 supplies power to the vehicle drive system 11. That is, the power of the battery 10 is used to drive the hybrid vehicle 100. In addition, the battery 10 can supply power to an external device (not shown) via the external power supply system 13. The battery 10 is, for example, a lithium-ion battery and can be charged. In addition to being charged with regenerative power input from the vehicle drive system 11, the battery 10 is also charged with power generated by the power generation system 12.

[0023] The vehicle drive system 11 is a system for driving the hybrid vehicle 100. The vehicle drive system 11 is composed of a drive motor 21, a gear 22, and a drive wheel 23. The drive motor 21 is an electric motor that generates a driving force (torque) for the drive wheel 23 using the power of the battery 10. The power generated by the drive motor 21 is transmitted to the drive wheel 23 via the gear 22. When the drive motor 21 is driven and rotated by the drive wheel 23, the drive motor 21 inputs regenerative power into the battery 10.

[0024] In principle, the power generation system 12 generates electricity for charging the battery 10. The power generation system 12 is composed of an engine 24 and a generator 25. The engine 24 is a power source for the power generation system 12, for example, an internal combustion engine that generates power using gasoline or other fuels. The generator 25 rotates using the power input from the engine 24 to generate electricity for charging the battery 10. In the present embodiment, the power generation system 12 is properly operated in a manner such that the charge rate (SOC: State Of Charge) of the battery 10 converges to a predetermined range. Therefore, for example, when the charge rate of the battery 10 decreases, the power generation system 12 sometimes operates automatically without relying on the operation of the driver or the like.

[0025] The power generation system 12 (generator 25) can directly supply the generated electric power to the drive motor 21. In this case, the drive motor 21 is driven by the electric power of the battery 10, the electric power supplied from the power generation system 12, or both.

[0026] The external power supply system 13 performs external power supply (power supply) of the battery 10 to one or more external devices as needed. The external device refers to an electric device, an electric heating device, an electronic device, or other electrical products or electrical equipment that is separately provided from the hybrid vehicle 100. In addition to being used outside the hybrid vehicle 100, the external device is sometimes used inside the hybrid vehicle 100. In addition, the external power supply system 13 is sometimes able to directly supply the power generated by the power generation system 12 to the external device. In the present embodiment, the external power supply system 13 supplies power from the battery 10 to the external device. Hereinafter, the state in which the external power supply system 13 is operating and can perform external power supply by connecting to the external device is referred to as the "on" state, and the state in which the external power supply system 13 is stopped and cannot perform external power supply even if connected to the external device is referred to as the "off" state.

[0027] The external power supply system 13 has an external power supply inverter 26 (AC-INV) and one or more power sockets 27 (sockets). The external power supply inverter 26 converts the DC power output by the battery 10 into AC power. The power socket 27 supplies the AC power output by the external power supply inverter 26 to the external device connected thereto. The power socket 27 is provided in the vehicle compartment, the trunk, or both. For example, in the vehicle compartment, the power socket 27 is provided in one or more locations such as the rear of the center console. In the trunk, the power socket 27 is provided in one or more locations such as the inner wall.

[0028] The outside notification system 14 outputs sound or voice to the outside of the hybrid vehicle 100. Thus, the outside notification system 14 notifies various information corresponding to the output sound or voice to people and the like (including hearing dogs and other animals) outside the hybrid vehicle 100. The outside notification system 14 includes, for example, a speaker 28 that outputs sound or voice to the outside of the hybrid vehicle 100.

[0029] In the present embodiment, the outside notification system 14 outputs a predetermined vehicle approach notification sound using the speaker 28 to notify people outside the vehicle that the hybrid vehicle 100 is approaching. That is, the outside notification system 14 functions as a so-called vehicle approach notification system. The vehicle approach notification system is sometimes referred to as a VSP (Approaching Vehicle Sound for Pedestrian) system. The outside notification system 14 outputs a vehicle approach notification sound, for example, when the hybrid vehicle 100 starts at a low speed that is less than or equal to a predetermined speed (e.g., 30 km / h), and when the hybrid vehicle 100 decelerates at a speed that is less than or equal to a predetermined speed (e.g., 25 km / h).

[0030] When the engine 24 is in a state where the driver has gotten out of the vehicle, the exterior notification system 14 emits a notification sound (hereinafter referred to as notification sound S) to the outside of the hybrid vehicle 100 to notify that the engine 24 is in a state where the driver has gotten out of the vehicle. N ) output. Thus, the vehicle exterior notification system 14 notifies the driver who has gotten out of the vehicle that the engine 24 is in an operable state, and urges the driver to change the engine 24 to an inoperable state when leaving the hybrid vehicle 100.

[0031] In addition, in the present embodiment, the vehicle exterior notification system 14 responds to the notification sound S N The same sound source as the vehicle approach notification sound is used. However, the outside vehicle notification system 14 can use the notification sound S composed of a sound source different from the vehicle approach notification sound. N Output.

[0032] In addition, in the operating state S of the hybrid vehicle 100 V There are three stages in the hybrid vehicle 100: ignition off ("IGN-OFF"), ignition on ("IGN-ON"), and ready ("READY-ON"). Among the above states, the "state in which the engine 24 can be operated" is the state in which the hybrid vehicle 100 is in the READY-ON state.

[0033] The IGN-OFF state is a state in which the vehicle drive system 11, the power generation system 12, the external power supply system 13 (i.e., the first power system), and the external notification system 14 (i.e., the second power system) are not powered, and the entire hybrid vehicle 100 stops functioning. Therefore, in the IGN-OFF state, in addition to the hybrid vehicle 100 being unable to start, the external notification system 14 and the like also do not function.

[0034] The IGN-ON state is a state in which the first power system is not energized, the second power system is energized, and a part of the hybrid vehicle 100 functions. In the IGN-ON state, the hybrid vehicle 100 cannot start, but the vehicle exterior notification system 14 and the like function. The IGN-ON state is sometimes referred to as an accessory mode or the like.

[0035] The READY-ON state is a state where the first power system and the second power system are powered on, and all functions of the hybrid vehicle 100 are available. In the READY-ON state, in addition to the functioning of the external notification system 14 and the like, the hybrid vehicle 100 can also start. In the present embodiment, being able to start means a state where the first power system is powered on regardless of the state of the shifter 32, the parking brake (not shown), etc., so that the entire first power system or a part thereof can be substantially immediately operated as required.

[0036] In addition, in the present embodiment, the state of IGN-OFF or the state of IGN-ON, in which at least the first electric power system is not energized, may be collectively referred to as unready ("READY-OFF").

[0037] The controller 15 is a control device that uniformly controls the various parts that constitute the hybrid vehicle 100. The controller 15 is composed of one or more computers. The controller 15 is programmed to perform operations in a predetermined control cycle, etc. to make the various parts of the hybrid vehicle 100 perform actions. The one or more programs executed by the controller 15 to make the various parts of the hybrid vehicle 100 perform actions constitute the control program of the hybrid vehicle 100. The control program of the hybrid vehicle 100 is provided or installed in a state stored in a memory or other storage medium. In addition, sometimes the control program of the hybrid vehicle 100 is provided via an electrical communication line, etc., or all or part of it is updated.

[0038] Specifically, the controller 15 serves as a battery control unit that manages or controls the battery 10, a vehicle drive control unit that controls the driving of the hybrid vehicle 100 using the vehicle drive system 11, a power generation control unit that controls the power generation performed by the power generation system 12, an external power supply control unit that controls the external power supply performed by the external power supply system 13, and a warning sound control unit that controls the external warning sound performed by the vehicle external warning system 14. N The output notification control unit, etc. function.

[0039] The controller 15 can appropriately acquire vehicle parameters indicating the operating state of each part or perform calculations as needed when controlling each part of the hybrid vehicle 100. In the present embodiment, the controller 15 obtains, for example, vehicle parameters indicating the operating state of each part from the accelerator 31, the shifter 32, and the door switch 33 (SW door)、Seat belt wearing release switch 34 (SW buckle )、Power switch 35 (SW power ) and external power switch 36 (SW V2L ) etc. to appropriately obtain vehicle parameters.

[0040] The operation amount of the accelerator 31 (accelerator opening A PO ) represents the driving request of the driver. The controller 15 is based on the operation amount of the accelerator 31 (accelerator opening A PO (not shown)) to control the drive motor 21.

[0041] The shifter 32 can be placed in the positions of, for example, "P (parking) gear", "R (reverse) gear", "N (neutral) gear" and "D (drive) gear". The position of the shifter 32 (hereinafter referred to as the gear position) is used not only for driving control of the hybrid vehicle 100, but also for detecting the driver or other passengers getting on or off the vehicle. In the present embodiment, the controller 15 detects the driver getting off or getting on the vehicle based on the gear position.

[0042] The door switch 33 detects the open / closed state of the doors of the hybrid vehicle 100. The hybrid vehicle 100 has doors on, for example, the driver's seat, the passenger seat, the left and right sides of the rear seats, and the trunk, so the door switch 33 is respectively provided on each of the above-mentioned doors. In the present embodiment, for convenience, the door switch 33 outputs a signal indicating that the door is open when any one or more of the above-mentioned doors is opened, and outputs a signal indicating that the door is closed when all the doors are closed. In the present embodiment, the controller 15 detects the driver's getting off and getting on the vehicle based on the open / closed state of the door detected by the door switch 33.

[0043] The seat belt wearing release switch 34 detects the wearing release state of the seat belt based on the fastened or unfastened state of the seat belt buckle. In the present embodiment, for convenience, the seat belt wearing release switch 34 detects the wearing release state of the driver's seat seat belt. In the present embodiment, the controller 15 detects the driver's getting off and getting on the vehicle based on the wearing release state of the seat belt detected by the seat belt wearing release switch 34.

[0044] The power switch 35 controls the operating state S of the hybrid vehicle 100. VControl. If the power switch 35 is pressed without stepping on the brake pedal (not shown) in the IGN-OF state, the controller 15 changes the hybrid vehicle 100 to the IGN-ON state. If the power switch 35 is pressed while stepping on the brake pedal in the IGN-OFF state, the controller 15 changes the hybrid vehicle 100 to the READY-ON state. If the power switch 35 is pressed in the IGN-ON or READY-ON state, the controller 15 changes the hybrid vehicle 100 to the IGN-OFF state, for example. In the present embodiment, the external power supply function can be used in the READY-ON state.

[0045] The external power supply switch 36 switches the external power supply system 13 on and off. If the external power supply switch 36 is pressed when the external power supply system 13 is off, that is, when the external power supply function is not used, the controller 15 operates the external power supply inverter 26 to enable the external power supply function. If the external power supply switch 36 is pressed when the external power supply function is used, the controller 15 stops the external power supply inverter 26 and ends the external power supply. That is, the external power supply switch 36 is an operation switch that starts or stops the external power supply.

[0046] In addition, in this embodiment, the external power switch 36 is also used to make the warning sound S N That is, in the present embodiment, the external power switch 36 is also used for the driver to intentionally silence the notification sound S N Specifically, if the controller 15 outputs the notification sound S N After that, if the external power switch 36 is detected to be pressed for a long time, the notification sound S output by the external notification system 14 is turned on. N Regarding the external power supply switch 36, the long press operation means that the external power supply switch 36 is turned off after being pressed for a time greater than or equal to a predetermined time (for example, 1.5 seconds). In addition, the normal operation time of the external power supply switch 36, that is, the time for pressing the external power supply switch 36 to turn on / off the external power supply system 13 is usually shorter than the predetermined time.

[0047] The mute operation using the external power switch 36 is an example. The controller 15 can make the notification sound S N Noise reduction.

[0048] Next, the notification sound S when the external power supply function is used in the hybrid vehicle 100 is described. N The control related to the output and the noise reduction, and the more specific structure of the controller 15 involved in the control are described in detail.

[0049] Figure 2 It indicates the necessity of notification and the notification sound N The following diagram is an illustration of the output-related status (notification status). Figure 2 As shown, in the hybrid vehicle 100, regarding the notification sound S N There are three states of output and silence: notification state α, notification state β, and notification state γ.

[0050] The notification state α is a state in which there is no need to notify that the engine 24 is in a state in which it can be operated. N Regardless of whether the engine 24 is in the READY-ON state and the driver is in the vehicle, or whether the driver is in the vehicle, when the engine 24 is in the READY-OFF state and cannot be operated, the hybrid vehicle 100 changes to the notification state α.

[0051] The notification state β is a state in which it is necessary to notify that the engine 24 is in a state in which it is possible to operate and the notification sound S is turned off. N Output (ON). In the READY-ON state where the engine 24 is operable, if the driver has gotten off the vehicle, the hybrid vehicle 100 is in the notification state β.

[0052] The notification state γ is a state in which it is necessary to notify that the engine 24 is in a state in which it can be operated, and the notification sound S N The sound is muted. N Silence means to make the notification sound S N The output is turned off, or the notification sound S is reduced compared to the notification state β. N The volume of the notification sound S N In this embodiment, the notification sound S N The output of the notification sound S is turned off or its volume is substantially reduced to zero. N of noise reduction.

[0053] The above-mentioned notification states change to each other when the controller 15 detects that predetermined conditions C1 to C5 and the like defined in advance are satisfied.

[0054] Condition C1 is a condition for changing from the notification state α to the notification state β, that is, for outputting the notification sound S N In the present embodiment, condition C1 is that the driver gets off the vehicle in the READY-ON state.

[0055] Condition C2 is a condition for changing from the notification state β to the notification state γ, that is, for making the notification sound S NConditions for silencing: In the present embodiment, condition C2 is that the external power switch 36 is long pressed.

[0056] Condition C3 is a condition for changing from the notification state γ to the notification state β, that is, for releasing the notification sound S N In the present embodiment, condition C3 is (1) the external power supply is disconnected by operating the external power supply switch 36, or (2) the driver is in the vehicle. In addition, when an abnormality of the external power supply switch 36 is detected, the notification state γ is changed to the notification state β regardless of the condition C3.

[0057] Condition C4 is a condition for changing from the notification state β to the notification state α, that is, for making the notification sound S N In the present embodiment, condition C4 is that (1) the hybrid vehicle 100 is in the READY-OFF state, or (2) the driver has boarded the vehicle and no notification sound S is required. N The output itself.

[0058] Condition C5 is a condition for changing from the notification state γ to the notification state α, that is, for making the notification sound S N In this embodiment, condition C5 is the same as condition C4, and is used because (1) the hybrid vehicle 100 is in the READY-OFF state, or (2) the driver has boarded the vehicle and no notification sound is required. N The output itself.

[0059] Condition C6 is a condition for changing from notification state α to notification state γ without passing through notification state β, that is, when a notification is required, firstly the notification sound S is turned on. N In the present embodiment, condition C6 is not set. Therefore, it is not possible to directly change from notification state α to notification state γ without passing through notification state β. This is because, after reliably notifying the driver that the engine 24 is in a state where it can be operated, the notification sound S is intentionally silenced. N Mute option.

[0060] Figure 3 It indicates the notification sound S N The output and the block diagram of the structure of the controller 15 related to the noise reduction. Figure 3 As shown, the controller 15 includes an external power supply operation detection unit 41, a shift position detection unit 42, a seat belt wearing release determination unit 43, a door opening and closing determination unit 44, and a notification control unit 45 in order to make the above-mentioned notification states α, β, and γ transition to each other.

[0061] The external power supply operation detection unit 41 detects the external power supply switch 36 (SW V2L) operation. When the external power supply operation detection unit 41 detects the operation of the external power supply switch 36 in a state where no external power supply is being performed, the external power supply inverter 26 (AC-INV) is operated, thereby forming a state where external power supply can be performed. In addition, when the operation of the external power supply switch 36 is detected, the external power supply operation detection unit 41 stops the external power supply inverter 26 to end the external power supply. In addition, the external power supply operation detection unit 41 measures the operation time of the external power supply switch 36 and compares its operation time with the specified time (threshold). Thus, the external power supply operation detection unit 41 detects the long press operation of the external power supply switch 36. Specifically, when the operation time is greater than or equal to the specified time, the external power supply operation detection unit 41 determines the operation of the external power supply switch 36 as a long press operation. Hereinafter, an operation in which the operation time of the external power supply switch 36 is less than the threshold value in comparison with the long press operation is referred to as a normal operation. In addition, in addition to being used as a warning sound S for making the long press operation of the external power supply switch 36, the long press operation of the external power supply switch 36 N In addition to the trigger condition for silencing, it also functions as an operation for turning on external power supply.

[0062] In addition, the external power supply operation detection unit 41 can detect an abnormality of the external power supply switch 36 based on the operation time of the external power supply switch 36. Specifically, the external power supply operation detection unit 41 compares the operation time of the external power supply switch 36 with a predetermined abnormality detection threshold value (for example, 1 minute). And, when the operation time of the external power supply switch 36 is greater than or equal to the abnormality detection threshold value, the external power supply operation detection unit 41 detects that the external power supply switch 36 has an abnormality.

[0063] The shift position detection unit 42 detects the shift position. Specifically, the shift position detection unit 42 detects whether the shift position is the P range in order to report the state transition determination.

[0064] The seat belt release determination unit 43 detects the seat belt release switch 34 (SW buckle ) is turned on / off to determine the wearing release state of the seat belt. When the seat belt wearing release switch 34 is turned on, the seat belt wearing release determination unit 43 determines that the seat belt is worn. On the other hand, when the seat belt wearing release switch 34 is turned off, the seat belt wearing release determination unit 43 determines that the seat belt is not worn.

[0065] The door opening / closing determination unit 44 detects the door switch 33 (SW door ) is turned on / off to determine the open / closed state of the door.

[0066] The above-mentioned gear position detection unit 42, seat belt wearing release determination unit 43 and door opening and closing determination unit 44 constitute an exit detection unit for detecting the driver's exiting the vehicle, and a boarding detection unit for detecting the driver's boarding the vehicle (hereinafter collectively referred to as the boarding and exiting detection unit 46). That is, the controller 15 detects the driver's exiting and boarding the vehicle based on the combination of the detection result of the gear position detection unit 42 and the determination results of the seat belt wearing release determination unit 43 and the door opening and closing determination unit 44. Specifically, when the gear position is P gear, the seat belt is not worn, and the door is opened, the boarding and exiting detection unit 46 detects the driver's exiting the vehicle. Moreover, when (1) the conditions of P gear release or wearing the seat belt are met and (2) the door is closed, the boarding and exiting detection unit 46 detects the driver's boarding. Hereinafter, the detection of the driver's exiting the vehicle based on the boarding and exiting detection unit 46 is referred to as the exit detection, and the detection of boarding the vehicle is referred to as the boarding detection. In addition, the detection of getting off or getting on by the getting on and off detection unit 46 may be collectively referred to as getting on and off detection.

[0067] The notification control unit 45 is based on the operating state S of the hybrid vehicle 100. V , the operation status of the external power switch 36 and the result of the boarding and getting off detection, and the control of the notification sound S N The notification control unit 45 includes a notification sound output control unit 47 and a silencer control unit 48.

[0068] The notification sound output control unit 47 is based on the operating state S of the hybrid vehicle 100. V Specifically, when the driver gets off the vehicle in the READY-ON state, that is, when the condition C1 is satisfied, the notification sound output control unit 47 determines that it is necessary to notify that the engine 24 is in a state where it can be operated. Furthermore, the notification sound output control unit 47 uses the external notification system 14 to output the notification sound S N On the other hand, when the vehicle is in the READY-OFF state or the driver has boarded the vehicle, that is, when the condition C4 or the condition C5 is satisfied, the notification sound output control unit 47 determines that there is no need to notify that the engine 24 is in a state where it can be operated. N The output stops.

[0069] The muffler control unit 48 is based on the operating state S of the hybrid vehicle 100. V , the operation status of the external power switch 36 and the result of the boarding and getting off detection, and the control of the notification sound S N In addition, the mute control unit 48 uses the mute flag F mute The management notified N Silence or release of the silencing mark F muteThe following mark is used, that is, when the notification sound S N When silenced, it becomes the "set" state, and the notification sound S can be output. N When the hybrid vehicle 100 is in the READY-OFF state, the mute control unit 48 sets the mute flag F to "0". mute When hybrid vehicle 100 is in the READY-ON state, silencer control unit 48 sets silencer flag F mute This changes to the cleared state. As a result, the notification sound S can be output as needed. N status.

[0070] In addition, when hybrid vehicle 100 is in the READY-ON state (that is, the mute flag F mute In the cleared state), if the long-press operation of the external power switch 36 is detected, the mute control unit 48 exceptionally sets the mute flag F mute The state is changed from the cleared state to the set state. That is, when the condition C2 is satisfied, the silencer control unit 48 sets the silencer flag F mute Thus, the noise cancellation control unit 48 makes the notification sound S N Noise reduction.

[0071] On the other hand, when (1) the external power supply is turned off by operating the external power supply switch 36, or (2) the driver has gotten into the vehicle, the mute control unit 48 turns the mute flag F mute That is, when condition C3 is satisfied or when condition C5 is satisfied due to the driver getting on the vehicle, the silencer control unit 48 sets the silencer flag F to zero. mute Set to zero state. N The silencer is removed.

[0072] In addition, when an abnormality is detected in the external power switch 36 or an abnormality is detected in the door or the seat belt, the silencer control unit 48 turns off the silencer flag F. mute This is because when an abnormality occurs in the external power switch 36, the door, the seat belt, etc., the notification sound S will not be turned off. N In addition, when the P gear is released and the door is closed, that is, when the driver gets in the car, the mute control unit 48 also turns off the mute flag F. mute Set to the cleared state. This is to prevent the output of the vehicle approach notification sound from being blocked.

[0073] Figure 4 Is to mute the sign F mute Flowchart of the scenario of changing from the cleared state to the set state. Figure 4As shown, when the hybrid vehicle 100 is in the READY-ON state in step S10, the vehicle getting on and off detection of steps S11 to S12 is performed. Specifically, in step S11, it is confirmed whether the gear position is the P gear, and in step S12, it is confirmed whether the seat belt is released. In addition, in step S13, it is confirmed whether the door is open. Moreover, when the gear position is the P gear, the seat belt is released, and the door is open, it is determined that the driver gets off the vehicle in the READY-ON state, and the process proceeds to step S14.

[0074] If the external power switch 36 (SW V2L ), then in step S15 the mute control unit 48 sets the mute flag F mute In addition, when the hybrid vehicle 100 is in the READY-OFF state in step S10, or when it is determined that the driver has not gotten off the vehicle because any of the conditions in steps S11 to S13 are not satisfied, the silencer control unit 48 sets the silencer flag F to zero. mute Maintain the cleared state.

[0075] Figure 5 Is to mute the sign F mute Flowchart of the scenario of changing from the set state to the clear state. Figure 5 As shown, in step S20, when the external power supply operation detection unit 41 detects the normal operation of the external power supply switch 36, the external power supply is stopped. In this case, the control proceeds to step S21, and the silencer control unit 48 sets the silencer flag F mute On the other hand, if the normal operation of the external power supply switch 36 is not detected in step S20 and the state in which external power supply is possible continues, the control proceeds to step S22 to detect the driver getting on the vehicle.

[0076] In step S22, the shift position is confirmed. If it is confirmed in step S22 that the P range is released, that is, the range is changed from the P range to another range, the process proceeds to step S23. On the other hand, if the P range is maintained in step S22, the process proceeds to step S24.

[0077] In step S23, the door is confirmed to be open or closed. If it is confirmed in step S23 that the door is closed, the control proceeds to step S21, and the mute control unit 48 sets the mute flag F mute On the other hand, if it is confirmed in step S23 that the door is open, the silencer control unit 48 sets the silencer flag F mute Maintain the setting status.

[0078] In step S24, the wearing release state of the seat belt is confirmed. If the wearing of the seat belt is confirmed in step S24, the process proceeds to step S23. As described above, the mute control unit 48 changes or maintains the mute flag F according to the opening and closing state of the vehicle door. mute On the other hand, if it is confirmed in step S24 that the seat belt is not worn, the silencer control unit 48 turns the silencer flag F mute Maintain the setting status.

[0079] That is, the silencer control unit 48 turns off the silencer flag F when the external power supply is stopped or when the driver gets on the hybrid vehicle 100. mute Change to cleared state.

[0080] Next, the notification sound S of the hybrid vehicle 100 configured as described above will be described. N The output and the effects of noise reduction are explained.

[0081] Figure 6 It is the notification sound S N Flowchart of the output and noise reduction involved. Figure 6 As shown, in step S30, when the external power supply operation detection unit 41 detects the normal operation or long-pressing operation of the external power supply switch 36, the control enters step S31, and the controller 15 confirms whether the driving state of the hybrid vehicle 100 is in the READY-ON state. When the hybrid vehicle 100 is in the READY-ON state in step S31, in step S32, the controller 15 operates the external power supply inverter 26 (AC-INV) so that the external power supply system 13 is in a state capable of external power supply, and enters step S33. At this time point, the hybrid vehicle 100 is in the notification state α, and the silencer flag F is set. mute In cleared state.

[0082] In step S33 to step S35, the vehicle getting on and off detection unit 46 detects the driver getting off the vehicle. Specifically, in step S33, the gear position detection unit 42 confirms whether the gear position is the P gear. In step S34, the seat belt wearing release determination unit 43 confirms that the seat belt is released. Moreover, in step S35, the door opening and closing determination unit 44 confirms that the door is open. As a result, when it is detected that the driver has gotten off the vehicle, condition C1 is satisfied, so the notification state of the hybrid vehicle 100 changes from the initial notification state α to the notification state β. That is, the control enters step S36, and the notification sound output control unit 47 uses the external notification system 14 to output the notification sound S N Output.

[0083] Then, in step S37, if the external power supply operation detection unit 41 detects the long-press operation of the external power supply switch 36, the condition C2 is satisfied, and therefore the notification state of the hybrid vehicle 100 changes from the notification state β to the notification state γ. That is, the control proceeds to step S38, and the silencer control unit 48 sets the silencer flag F mute Set to the setting state so that the notification sound S N Noise reduction.

[0084] Figure 7 This is a flow chart related to the transition from notification state γ to notification state β. Figure 7 As shown, in step S40, the external power supply operation detection unit 41 detects the operation (normal operation) of the external power supply switch 36 and stops the external power supply inverter 26, thereby disconnecting the external power supply. In this case, the condition C3 is satisfied, so the notification state of the hybrid vehicle 100 changes from the notification state γ to the notification state β. That is, the control proceeds to step S41, and the notification sound S is turned off. N As a result, the notification sound S N In a state where output can be performed as required.

[0085] If the external power supply can be continued in step S40 , the control proceeds to step S42 , where it is determined whether the driver has gotten into hybrid vehicle 100 .

[0086] Specifically, the shift position is confirmed in step S42. If it is confirmed in step S42 that the P range has been released, the process proceeds to step S43. On the other hand, if the P range is maintained in step S42, the process proceeds to step S44.

[0087] In step S43, the door is confirmed to be open or closed. If it is confirmed in step S43 that the door is closed, the control proceeds to step S41, and the notification sound S N On the other hand, if it is confirmed in step S43 that the door is open, the control proceeds to step S45, and the notification sound S is maintained. N of noise reduction.

[0088] In step S44, the wearing and releasing state of the seat belt is confirmed. If the wearing of the seat belt is confirmed in step S44, the process proceeds to step S43. And, as mentioned above, the control proceeds to step S41 or step S45 according to the opening and closing state of the door, and the warning sound S is released or maintained. N On the other hand, in step S44, if it is confirmed that the seat belt is not worn, the control proceeds to step S45, and the notification sound S is maintained. N of noise reduction.

[0089] Figure 8This is a flowchart related to the transition from the notification state β to the notification state α, and the transition from the notification state γ to the notification state α. Figure 8 As shown, in step S50, if the operating state S of the hybrid vehicle 100 is V When the first power system is in the READY-OFF state, the power supply to the first power system is stopped, so that the engine 24 becomes inoperable, and there is no need to N Therefore, when the notification state of the hybrid vehicle 100 is the notification state β, condition C4 is satisfied. In addition, when the notification state of the hybrid vehicle 100 is the notification state γ, condition C5 is satisfied. Therefore, regardless of whether the notification state of the hybrid vehicle 100 is the notification state β or the notification state γ, in the operating state S of the hybrid vehicle 100 V When the state is READY-OFF, it is changed to the notification state α. That is, the control enters step 51, and the notification sound S is stopped regardless of whether it is muted or not. N Output.

[0090] In step S50, when the operating state S V When the READY-ON state is maintained, the control enters step S52, and the boarding and disembarking detection unit 46 is used to detect the driver's boarding. Specifically, in step S52, the gear detection unit 42 detects the release of the P gear. In step S53, the door opening and closing determination unit 44 determines whether the door is closed. In addition, in step S54, the seat belt wearing release determination unit 43 determines whether the seat belt is worn. Moreover, when the P gear is released and the door is closed, or when the seat belt is worn and the door is closed, it is determined (detected) that the driver has boarded the vehicle. Therefore, when the notification state of the hybrid vehicle 100 is the notification state β, condition C4 is satisfied. In addition, when the notification state of the hybrid vehicle 100 is the notification state γ, condition C5 is satisfied. Therefore, the control enters step S51, and the notification sound S is stopped regardless of whether it is silenced. N Output.

[0091] On the other hand, in steps S52 to S54, when it is determined (detected) that the driver has not boarded the vehicle, control proceeds to step S55. In step S55, the notification sound S is maintained. N Specifically, in the notification state β, the notification sound S is maintained. N Output, in the notification state γ, maintain the notification sound S N of noise reduction.

[0092] Fig. 9 It indicates the notification sound S N Timing diagram of output status, etc. Fig. 9(A) shows the operating state S of the hybrid vehicle 100 V The progress of. Fig. 9 (B) shows the external power switch 36 (SW V2L )’s operating status. Fig. 9 The arrow in (B) indicates the timing (falling edge) at which the operation of the external power switch 36 becomes effective in terms of control. Fig. 9 (C) shows the operating state of the external power supply inverter 26 (AC-INV). Fig. 9 (D) indicates the mute mark F mute The setting status of Fig. 9 (F) indicates warning sound S N on / off. Fig. 9 The unit of the horizontal axis (time) in each table is, for example, seconds.

[0093] Time t1 is the time when the external power supply switch 36 is operated for the first time when the hybrid vehicle 100 is not operating (IGN-OFF state). Time t2 is the time when the operating state S of the hybrid vehicle 100 is S2. V The time when the state of IGN-OFF changes to the state of IGN-ON. Time t3 is the time when the external power switch 36 is operated (normal operation) in the state of IGN-ON which changes to the state of time t2. Time t4 is the time when the state of IGN-ON changes to the state of READY-ON. Time t5 is the time when the normal operation of the external power switch 36 is first detected in the state of READY-ON which changes to the state of time t4. Time t6 is the time when the door is opened. Fig. 9 In the example, time t7 is missing. Time t8 is the time when the long-press operation of the external power supply switch 36 is started in the READY-ON state at time t4. Time t9 is the time when the long-press operation of the external power supply switch 36 is detected in the READY-ON state at time t4. 10 The time when the READY-ON state started at time t4 changes to the READY-OFF state (IGN-ON or IGN-OFF). 11 For 10 The time when the initial READY-OFF state changes to the READY-ON state again. Time t 12 For the time t 11 The time when the external power supply switch 36 is pressed and held in the READY-ON state. 13 For the time t 11 The time when the long-press operation of the external power switch 36 is detected in the initial READY-ON state. 14 is the moment when the door is closed.15 is the time when the door opens again. 16 For the time t 11 The timing of normal operation of the external power supply switch 36 is detected in the initial READY-ON state.

[0094] like Fig. 9 As shown in (A), the state is IGN-OFF until time t2, so both the first power system and the second power system are not powered. Fig. 9 As shown in (B), even if the external power switch 36 is operated at time t1, Fig. 9 As shown in (C), the external power supply inverter 26 is not operating. That is, the external power supply function cannot be used.

[0095] In addition, if Fig. 9 As shown in (A), from time t2 to time t4, the state is IGN-ON, so the second power system is powered, but the first power system including the power generation system 12 and the external power supply system 13 is not powered. Fig. 9 As shown in (B), even if the external power switch 36 is operated at time t3, Fig. 9 As shown in (C), the external power supply inverter 26 is not operating. That is, the external power supply function cannot be used.

[0096] In contrast, if Fig. 9 As shown in (A), at time t4, the READY-ON state is reached, and the first power system including the power generation system 12 and the external power supply system 13 is energized. Fig. 9 As shown in (B), if the external power switch 36 is operated at time t5, Fig. 9 As shown in (C), the external power supply inverter 26 is operated. Thus, the external power supply function can be utilized. Fig. 9 As shown in (E), the operating state S of the hybrid vehicle 100 V The READY-ON state is changed to silence the F mute Therefore, as long as it is in the READY-ON state, the notification sound S N Output.

[0097] Here, if Fig. 9 As shown in (D), at time t6, the door is opened and the driver's exit is detected while maintaining the READY-ON state. Fig. 9 As shown in (F), from time t6, the notification sound S N Output, to inform the driver who has gotten off the vehicle that the engine 24 is in a state where it can be operated. Then, if a long press operation of the external power supply switch 36 is detected at time t9, as shown in FIG. Fig. 9 (E) As shown, the muffler mark F mute Therefore, when the door is open and the driver has exited the vehicle, Fig. 9 As shown in (F), from time t9, the notification sound S N Noise reduction.

[0098] In addition, if Fig. 9 As shown in (A), if the operating state S of the hybrid vehicle 100 is V At time t 10 Change to READY-OFF state, then Fig. 9 As shown in (C), the external power supply inverter 26 is stopped. 10 The external power supply function stops. Fig. 9 (E) As shown, the muffler mark F mute However, by changing to the READY-OFF state, the power supply to the first power system including the power generation system 12 and the external power supply system 13 is stopped, and the engine 24 is in a state where it cannot operate. Therefore, it is no longer necessary to turn on the notification sound S N The output notification state α, so if Fig. 9 (F) is shown, not dependent on the muffler mark F mute In the state, no notification sound S is output N .

[0099] Then, if at time t 11 Once it becomes READY-ON again, Fig. 9 (E) As shown, the muffler mark F mute It becomes cleared again, and the notification sound S can be turned on as needed. N The output status. Here, Fig. 9 As shown in (B), the door is open and it is determined that the driver has gotten out of the vehicle. Fig. 9 As shown in (F), from time t 11 Immediately output notification sound S N , notifying the driver getting off the vehicle that the engine 24 is in an operational state.

[0100] Moreover, if at time t 13 If a long press operation of the external power switch 36 is detected, Fig. 9 (E) Silencer mark F mute Therefore, if Fig. 9 As shown in (F), from time t 13 The notification sound S N Noise reduction.

[0101] In addition, as mentioned above, the conditions for getting off the vehicle and getting on the vehicle are different, and the driver is not determined to have gotten on the vehicle simply because the door is closed. N In the case of muffler, the muffler mark F will not be affected simply because the door is closed. mute The state is cleared and the notification sound S is continuously emitted. N For example, at time t 14 The door remains closed, but if Fig. 9 As shown in (F), at time t 14 We will continue to make notifications in the future. N of noise reduction.

[0102] However, if the external power supply is disconnected due to the operation of the external power switch 36, the mute flag F mute Set to clear state, the notification sound S N The silencing of the notification sound can be canceled and the notification sound S N The output status. Here, Fig. 9 (B) and Fig. 9 As shown in (C), the external power supply is at time t 16 Disconnect, so that Fig. 9 (E) As shown, the muffler mark F mute becomes cleared. As a result, Fig. 9 As shown in (F), from time t 16 Once again, the notification sound S N Output.

[0103] Fig.10 It indicates the notification sound S N Different timing diagrams of output states, etc. Fig.10 The parameters and time shown in (A) to (F) are respectively Fig. 9 The parameters and timing shown in (A) to (F) are the same. Fig.10 In the READY-ON state starting at time t4, the operation of the external power supply switch 36 is detected at time t7.

[0104] like Fig.10 As shown in (B), if the operation of the external power switch 36 is detected at time t7, Fig.10 (C) shows that the inverter 26 for external power supply is stopped accordingly. Therefore, the external power supply cannot be used at time t7. In addition, if the external power supply is turned off by operating the external power supply switch 36, the silencer flag F mute Set to clear state, but here, the silencer flag F mute has become cleared, so the cleared state continues as it is. Fig.10 As shown in (F), the notification sound S starts at time t6. NThat is, as long as the driver gets off the vehicle while the engine 24 is running, the notification sound S is continuously output regardless of whether the external power supply function is used or not. N .

[0105] also, Fig. 9 From time t4 to time t 10 The scenario is, for example, a scenario in which the driver uses the external power supply function in the vehicle while the hybrid vehicle 100 is running, and then the driver gets out of the vehicle directly. Fig.10 From time t4 to time t 10 The scenario is, for example, a scenario in which the driver turns on the external power supply function to use the external power supply function during outdoor activities and gets out of the vehicle, and then hears the notification sound S N Return for silence.

[0106] [Modifications]

[0107] In the above embodiment, the hybrid vehicle 100 is kept in a startable state according to the intention of the driver or the like through a predetermined operation (long pressing of the external power switch 36), and the sound that the hybrid vehicle 100 should output is silenced. N Compared with the case of silencer, the notification sound S N The hybrid vehicle 100 in the silenced state is in a state that is easy to be stolen. In addition, when power is supplied to external devices outside the vehicle, the door of the hybrid vehicle 100 is often opened, so when the notification sound S is muted, the vehicle 100 is easily stolen. N The hybrid vehicle 100 is in a state where the noise is muted and is easily stolen. Therefore, it is preferable to include the driver's identity verification step in the vehicle entry detection of the above embodiment in the following manner. N In the case of noise reduction, it is also easy to prevent the hybrid vehicle 100 from being stolen.

[0108] Fig.11 This is a flowchart of a modified example. Fig.11 As shown, in step S60, the notification sound S N When the silencing is in progress, when a part of the vehicle entry detection conditions are met, it is confirmed whether the person who meets the part of the vehicle entry detection conditions is the driver. Specifically, when the gear position detection unit 42 detects the release of the P gear in step S61, or when the seat belt wearing release determination unit 43 determines that the seat belt is worn in step S62, the control proceeds to step S63, and the controller 15 determines whether the person who released the P gear or the person who wore the seat belt is the driver (owner) of the hybrid vehicle 100.

[0109] In this case, the controller 15 functions as a driver (person) authentication unit. The controller 15 can determine whether the person who releases the P range or wears the seat belt is the driver (owner) of the hybrid vehicle 100 by, for example, fingerprint authentication, facial authentication, authentication using a smart key, authentication using a device (smartphone, etc.) that cooperates with the hybrid vehicle 100, or other arbitrary authentication methods.

[0110] In step S63, if it is determined that the person who has released the P range or the person who has worn the seat belt is the driver of the hybrid vehicle 100, the control proceeds to step S64. In step S64, if it is confirmed by the door opening and closing determination unit 44 that the door is closed, the vehicle entry detection condition is satisfied. Therefore, the control proceeds to step S65, and the notification sound S is turned on. N The output stops.

[0111] On the other hand, in step S63, if it is determined that the person who released the P range or the person who wore the seat belt is not the driver of the hybrid vehicle 100, the control proceeds to step S66. In step S66, the controller 15 sets the operating state S of the hybrid vehicle 100 to V In step S67, the controller 15 uses the mute control unit 48 to set the mute flag F mute The controller 15 outputs the anti-theft alarm sound by using the vehicle outside notification system 14. The anti-theft alarm sound is the same as the vehicle approach notification sound or notification sound S68. N Compared, at least the sound source or volume is different.

[0112] In the above-mentioned embodiment and modification, the notification sound S N The operation (prescribed operation) that triggers the silencing is described as an example of a long-press operation of the external power switch 36, but this is only an example. The notification sound S may be silenced by any predetermined operation other than the long-press operation of the external power switch 36. N Noise reduction.

[0113] In the above-described embodiment and modification, in the operating state S of the hybrid vehicle 100 V When the state changes from READY-ON to READY-OFF, the mute flag F is maintained. mute , but is not limited thereto. In the operating state S of the hybrid vehicle 100 V When the status is READY-OFF, the mute flag F muteIn addition, the silencer flag F may be arbitrarily changed as long as it does not deviate from the gist of the above-mentioned embodiment and the modified example. mute , and other settings.

[0114] As described above, in the control method of the hybrid vehicle 100 according to the above-mentioned embodiment and the modified example, when the engine 24 is in a state in which the operation is possible, when it is detected that the driver has gotten off the vehicle, the notification sound S for notifying that the engine 24 is in a state in which the operation is possible is emitted toward the outside of the hybrid vehicle 100. N Furthermore, when the engine 24 is in a state where the battery 10 is externally powered to supply power to an external device, when the driver's exit from the vehicle is detected and a predetermined specific operation input (long-press operation of the external power supply switch 36) is detected, the notification sound S is emitted. N Noise reduction.

[0115] In this way, in principle, when the driver gets off the hybrid vehicle 100 while the engine 24 is still in a state in which it can be operated, the driver can hear the notification sound S. N The driver is informed that the engine 24 is in an operable state. This is because the hybrid vehicle 100 emits the notification sound S regardless of the driver's intention (desire) to draw the driver's attention. N On the other hand, when the external power supply function is used, the driver often gets off the vehicle while the engine 24 is running. In this case, the notification sound S N Output status, so intermittent or continuous notification sound S N Therefore, as described above, the hybrid vehicle 100 can make the notification sound S according to the driver's intention through a predetermined specific operation input such as a long press operation of the external power switch 36. N That is, hybrid vehicle 100 does not make the notification sound S N The warning sound can be turned off according to the situation within the scope of the meaning of the damage. N As a result, hybrid vehicle 100 can in principle eliminate the noise by reducing the notification sound S N Output to call attention to important matters, and in the case where the driver feels unhappy, the excessive warning sound S can be reduced according to the driver's wishes. N stop.

[0116] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, the specific operation input is a long-press operation of the operation switch (external power supply switch 36) for starting or stopping external power supply. NThe typical situation of outputting is the situation of using the external power supply function. Therefore, the specific operation input using the operation switch associated with the external power supply in the above manner becomes the one for making the notification sound S N The triggering condition of silencing can make the driver easily silence the warning sound according to the situation. N Noise reduction.

[0117] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, when the shifter 32 is set to the parking position (P position), the seat belt is released, and the door is opened, it is detected that the driver has gotten off the vehicle. In this way, if the driver's getting off the vehicle is determined based on the shift position, the wearing and releasing of the seat belt, and the opening and closing of the door, it is particularly easy and reliable to detect the driver's getting off the vehicle. As a result, the hybrid vehicle 100 can emit the notification sound S at a reliable timing. N Output.

[0118] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, when the engine 24 is in a state where the external power supply is performed and the driver's getting off the vehicle is detected, the notification sound S can be turned off. N After output, the notification sound S N That is, the hybrid vehicle 100 does not directly change from the notification state α to the notification state γ, but instead changes the notification sound S N After the output notification state β, it is allowed to make the notification sound S N Thus, even when the external power supply function is used, if the hybrid vehicle 100 at least turns off the notification sound S N The driver can also reliably recognize that the engine 24 is in a state where it can be operated. On this basis, the notification sound S is turned off based on the driver's judgment of the situation. N Therefore, the important attention that the engine 24 is in a state of being able to operate is reliably called out, and the notification sound S N The meaning of the output is particularly difficult to damage.

[0119] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, when the external power supply is stopped or when the driver's getting on the vehicle is detected, the notification sound S is turned off. N The mute release (refer to Figure 5 ). Notification sound S N It is output to call attention to important matters, so the notification sound S N Therefore, if it is necessary to eliminate the notification sound, the notification sound S N In special circumstances of silencing, the notification sound S NFurthermore, when the external power supply is stopped or when the driver is detected getting on the vehicle, the notification sound S can be used. N The silence condition has passed, so the hybrid vehicle 100 turns off the notification sound S as described above. N The silencer is released and the notification sound S N Thus, the hybrid vehicle 100 does not unnecessarily emit the notification sound S N Continuous silence, reliable notification sound S as needed N That is, hybrid vehicle 100 can reliably inform the driver that engine 24 is in an operable state.

[0120] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, when it is detected that the shifter 32 is switched from the parking gear (P gear) to another gear, or that the seat belt is worn, and the door is closed, it is determined that the driver has entered the vehicle. In this way, the hybrid vehicle 100 can detect the driver's entry into the vehicle particularly reliably by determining (detecting) the driver's entry into the vehicle based on the gear position or the release of the seat belt, and the opening and closing of the door. As a result, the hybrid vehicle 100 can emit the notification sound S at a particularly reliable timing. N The silencer is removed.

[0121] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, the notification sound S N The vehicle approach notification sound is a common sound for notifying the outside of the vehicle of the approach of the hybrid vehicle 100. The vehicle approach notification sound is usually a sound that notifies the approach of the hybrid vehicle 100 without causing discomfort to the people outside the vehicle. N By using the vehicle approach notification sound, the hybrid vehicle 100 can notify the driver or the like outside the vehicle that the engine 24 is in an operable state without causing discomfort. N The opportunity of muffling the noise is reduced, so the hybrid vehicle 100 is more likely to continue to be based on the notification sound S N And call attention.

[0122] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, the notification sound S N In the case of silence, when it is detected that the shifter 32 is switched from the parking range (P range) to another range or that the seat belt is worn, it is determined whether the shifter 32 is operated by the driver or the seat belt is worn. Furthermore, when it is determined that a person other than the driver has operated the shifter 32 or worn the seat belt, the notification sound S is muted. N Regardless of the noise reduction setting, the output to the outside of the hybrid vehicle 100 is the same as the notification sound SN Different warning sounds. Therefore, even in the notification sound S N Even in the case of noise reduction, it is easy to prevent the hybrid vehicle 100 from being stolen.

[0123] In the control method of the hybrid vehicle of the above-mentioned embodiment and the modified example, the warning sound is outputted regardless of the open or closed state of the vehicle door. That is, when the hybrid vehicle 100 is about to be stolen, the hybrid vehicle 100 quickly outputs the warning sound even when the vehicle door is open. N In the case of noise reduction, it is particularly easy to prevent the hybrid vehicle 100 from being stolen.

[0124] The control device (controller 15) of the hybrid vehicle according to the above-mentioned embodiment and the modified example includes: (a) a notification sound output control unit 47 which, when detecting that the driver has gotten off the vehicle while the engine 24 is in a state in which ... N and (b) a muffler control unit 48, which is in the state where the engine 24 is able to operate to supply power to an external device from the battery 10, when the driver's exit is detected and a predetermined specific operation input is detected, the notification sound S N Thus, the controller 15 includes the notification sound output control unit 47 and the noise silencing control unit 48, so that the hybrid vehicle 100 can in principle silence the notification sound S N In the case where the driver is not happy with the output of the warning signal, the excessive warning sound S can be reduced according to the driver's intention. N stop.

[0125] The control program of the hybrid vehicle according to the above-mentioned embodiment and the modified example functions as the following components: (a) a notification sound output control unit 47 which, when detecting that the driver has gotten off the vehicle while the engine 24 is in an operable state, outputs a notification sound S to the outside of the hybrid vehicle 100 for notifying that the engine 24 is in an operable state; N and (b) a muffler control unit 48, which, when the engine 24 is in a state where the battery 10 is supplied to an external device with power, detects the driver's exit from the vehicle and detects a predetermined specific operation input, so that the notification sound S N Thus, the control program of the hybrid vehicle causes the controller 15 to function as the notification sound output control unit 47 and the noise silencing control unit 48, so that the hybrid vehicle 100 can be operated in principle by silencing the notification sound S NOutput to call attention to important matters, and in the case where the driver feels uncomfortable, excessive warning sound S can be reduced according to the driver's wishes. N stop.

[0126] The storage medium for storing the control program of the hybrid vehicle involved in the above-mentioned embodiment and the modified example stores the control program, and the control program causes (a) the control device (controller 15) of the hybrid vehicle 100 to function as the following components: a notification sound output control unit 47 that outputs a notification sound S to the outside of the hybrid vehicle 100 for notifying that the engine 24 is in a state of being able to operate when the driver gets off the vehicle while the engine 24 is in a state of being able to operate. N and (b) a muffler control unit 48, which, when the engine 24 is in a state where the battery 10 is supplied to an external device with power, detects the driver's exit from the vehicle and detects a predetermined specific operation input, so that the notification sound S N Noise reduction.

[0127] The embodiments and modifications of the present invention have been described above. However, the configurations described in the embodiments and modifications are merely examples of application of the present invention and are not intended to limit the technical scope of the present invention.

Claims

1. A control method for a hybrid vehicle, wherein: When a driver's getting off the vehicle is detected while the engine is in an operative state, a notification sound is outputted to the outside of the hybrid vehicle to notify that the engine is in an operative state, When external power supply of battery power to an external device is performed while the engine is in an operable state, the notification sound is muted when the driver's getting off the vehicle is detected and a predetermined specific operation input is detected.

2. The control method of a hybrid vehicle according to claim 1, wherein: The specific operation input is a long-press operation of an operation switch for starting or stopping the external power supply.

3. The control method of a hybrid vehicle according to claim 1, wherein: When the shifter is set to the parking position, the seat belt is released, and the vehicle door is opened, it is detected that the driver has exited the vehicle.

4. The control method of a hybrid vehicle according to claim 1, wherein: When the external power supply is performed in a state where the engine is operable, the notification sound may be muted after the driver's getting off the vehicle is detected and the notification sound is output.

5. The control method of a hybrid vehicle according to claim 1, wherein: When the external power supply stops or when the driver's getting on the vehicle is detected, the notification sound is muted.

6. The control method of a hybrid vehicle according to claim 5, wherein: When at least one of a shift of the shifter from the parking range to another range or wearing of the seat belt is detected, and when a vehicle door is detected to be closed, it is determined that the driver has boarded the vehicle.

7. The control method of a hybrid vehicle according to claim 1, wherein: The notification sound is a sound common to a vehicle approach notification sound for notifying the outside of the vehicle of the approach of the hybrid vehicle.

8. The control method of a hybrid vehicle according to claim 1, wherein: When the notification sound is muted, upon detecting that the shifter is switched from the parking gear to another gear or that the seat belt is worn, determining whether the shifter is operated or the seat belt is worn by the driver, When it is determined that a person other than the driver has operated the shifter or has worn the seat belt, a warning sound different from the notification sound is output to the outside of the hybrid vehicle regardless of a silencing setting of the notification sound.

9. The control method of a hybrid vehicle according to claim 8, wherein: The warning sound is output regardless of the open / closed state of the door.

10. A control device for a hybrid vehicle, wherein: The control device of the hybrid vehicle comprises: a notification sound output control unit that, when a driver's getting off the vehicle is detected in the engine-operable state, outputs a notification sound to the outside of the hybrid vehicle to notify that the engine is in the operable state; as well as The silencer control unit silences the notification sound when the driver's getting off the vehicle and a predetermined specific operation input are detected while the engine is in an operable state and the battery power is supplied to an external device externally.

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