Hybrid vehicle control method and hybrid vehicle control device

Abstract

One embodiment of the present invention relates to a hybrid vehicle control method. According to this hybrid vehicle control method, when it has been detected that a driver alights from the vehicle in a state where the engine can be operated, a notification sound for notifying that the engine can be operated is outputted to the outside of the hybrid vehicle. In addition, when external power feeding is performed to feed power of a battery to an external device in a state where the engine can be operated, the notification sound is muted upon detection that the driver has alighted from the vehicle and upon detection of input of a predetermined specific operation.

Description

[Technical Field]

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

[0002] JP2017-155604A discloses an engine control device that determines whether or not a situation exists in which a running engine should be stopped after the driver gets off the vehicle, and automatically stops the running engine if it is determined that a situation exists in which the engine should be stopped. Summary of the Invention

[0003] A hybrid vehicle is equipped with an engine for driving the vehicle or generating electricity. Therefore, if the driver leaves the vehicle while the engine is still operational, the hybrid vehicle may output a predetermined warning sound to the outside of the vehicle to notify the driver that the engine is still operational. This warning sound continues to be output until the driver returns to the hybrid vehicle or a predetermined operation is performed to disable the engine.

[0004] On the other hand, hybrid vehicles are equipped with a large-capacity battery and may have an external power supply function that supplies (feeds) battery power to external devices as needed during outdoor activities such as camping or during disasters. A hybrid vehicle that notifies the driver that the engine is ready to operate outputs an alarm sound even when external power supply is in use. However, when external power supply is in use, it is common for the driver to get off the vehicle while the engine is still ready to operate. Therefore, if the alarm sound continues to be output when external power supply is in use, it may go beyond its intended purpose and cause discomfort to the driver or other people near the hybrid vehicle.

[0005] The present invention aims to provide a control method for a hybrid vehicle and a control device for a hybrid vehicle that, in principle, outputs an alarm sound to notify that the engine is in a state where it can operate, while being able to mute the alarm sound depending on the situation.

[0006] One aspect of the present invention is a control method for a hybrid vehicle. In this control method for a hybrid vehicle, when it is detected that a driver has exited the hybrid vehicle while the engine is in an operable state, an alarm sound is output to the outside of the hybrid vehicle to notify that the engine is in an operable state. Then, when external power feeding is performed to supply power from the battery to an external device while the engine is in an operable state, when it is detected that the driver has exited the hybrid vehicle and a predetermined specific operation input is detected, the alarm sound is muted. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a block diagram showing a schematic configuration of a hybrid vehicle. [Figure 2] FIG. 2 is an explanatory diagram showing the necessity of notification and the state related to the output of notification sound. [Figure 3] FIG. 3 is a block diagram showing the configuration of a controller related to outputting and muting the alarm sound. [Figure 4] FIG. 4 is a flowchart showing a scene in which the mute flag is changed from a clear state to a set state. [Figure 5] FIG. 5 is a flowchart showing a scene in which the mute flag is changed from a set state to a clear state. [Figure 6] FIG. 6 is a flowchart relating to outputting and muting of the alarm sound. [Figure 7] FIG. 7 is a flowchart showing the transition from the notification state γ to the notification state β. [Figure 8] FIG. 8 is a flowchart relating 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 9] FIG. 9 is a time chart showing the output state of the notification sound, etc. [Figure 10] FIG. 10 is another time chart showing the output state of the notification sound, etc. [Figure 11] FIG. 11 is a flowchart according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0009] FIG. 1 is a block diagram showing a schematic configuration of a hybrid vehicle 100. As shown in FIG. 1, the hybrid vehicle 100 of this embodiment is a so-called series-type hybrid vehicle and includes a battery 10, a vehicle drive system 11, a power generation system 12, an external power supply system 13, a vehicle exterior alarm system 14, and a controller 15. Of these, the vehicle drive system 11, the power generation system 12, and the external power supply system 13 constitute a first power system (first circuit) that is driven with relatively high power to generate motive power, etc., using electricity. The components that constitute the first power system are commonly energized. The vehicle exterior alarm system 14 and other auxiliary devices (including those not shown) constitute a second power system (second circuit) that is driven with relatively low power to use electricity for signals, etc. The components that constitute the second power system are commonly energized. Note that the hybrid vehicle 100 may be a parallel-type or any other type of hybrid vehicle as long as it has an engine (internal combustion engine) for vehicle drive or power generation.

[0010] 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. The battery 10 can also supply power to an external device (not shown) via an external power supply system 13. The battery 10 is, for example, a lithium ion battery, and is rechargeable. The battery 10 is charged by regenerated power input from the vehicle drive system 11, as well as by power generated by the power generation system 12.

[0011] The vehicle drive system 11 is a system that drives the hybrid vehicle 100. The vehicle drive system 11 is composed of a drive motor 21, a gear 22, drive wheels 23, etc. The drive motor 21 is an electric motor that generates a drive force (torque) on the drive wheels 23 using power from the battery 10. The power generated by the drive motor 21 is transmitted to the drive wheels 23 via the gear 22. When the drive motor 21 rotates in conjunction with the drive wheels 23, the drive motor 21 inputs regenerative power to the battery 10.

[0012] In principle, the power generation system 12 generates power for charging the battery 10. The power generation system 12 is configured with an engine 24, a generator 25, and the like. The engine 24 is a power source for the power generation system 12 and is, for example, an internal combustion engine that generates power using gasoline or other fuel. The generator 25 is rotated by the power input from the engine 24 and generates power for charging the battery 10. In this embodiment, the power generation system 12 is operated appropriately so that the state of charge (SOC) of the battery 10 falls within a predetermined range. Therefore, for example, when the state of charge of the battery 10 drops, the power generation system 12 may be automatically operated without any operation by the driver or the like.

[0013] The power generation system 12 (generator 25) can directly supply the generated power to the drive motor 21. In this case, the drive motor 21 is driven by the power of the battery 10, the power supplied from the power generation system 12, or both.

[0014] The external power supply system 13 performs external power supply, supplying (feeding) the power of the battery 10 to one or more external devices as needed. The external devices are electrically driven devices, electric heating devices, electronic devices, or other electrical products or electrical facilities that are provided separately from the hybrid vehicle 100. The external devices may be used outside the hybrid vehicle 100 or may be used inside the hybrid vehicle 100. Note that the external power supply system 13 may be capable of directly supplying the power generated by the power generation system 12 to the external devices. In the present embodiment, the external power supply system 13 supplies the power of the battery 10 to the external devices. Hereinafter, a state in which the external power supply system 13 is operating and can perform external power supply when an external device is connected is referred to as an "on" state, and a state in which the external power supply system 13 is stopped and cannot perform external power supply even if an external device is connected is referred to as an "off" state.

[0015] The external power supply system 13 includes an external power supply inverter 26 (AC-INV) and one or more outlets 27 (sockets). The external power supply inverter 26 converts DC power output from the battery 10 into AC power. The outlet 27 supplies the AC power output from the external power supply inverter 26 to an external device connected thereto. The outlet 27 is provided in the vehicle interior, the luggage compartment, or both. For example, in the vehicle interior, the outlet 27 is provided in one or more locations, such as the rear of the center console. In the luggage compartment, the outlet 27 is provided in one or more locations, such as an inner wall.

[0016] The vehicle exterior notification system 14 outputs sounds or voices to the outside of the hybrid vehicle 100. As a result, the vehicle exterior notification system 14 notifies people (including hearing dogs and other animals) outside the hybrid vehicle 100 of various information according to the sounds or voices that are output. The vehicle exterior notification system 14 includes, for example, a speaker 28 that outputs sounds or voices to the outside of the hybrid vehicle 100.

[0017] In this embodiment, the vehicle exterior notification system 14 outputs a predetermined vehicle approaching notification sound from the speaker 28 to notify people outside the vehicle that the hybrid vehicle 100 is approaching. That is, the vehicle exterior notification system 14 functions as a so-called vehicle approaching notification system. The vehicle approaching notification system is sometimes referred to as a VSP (Approaching Vehicle Sound for Pedestrian) system. The vehicle exterior notification system 14 outputs the vehicle approaching notification sound, for example, when the hybrid vehicle 100 starts moving and the vehicle speed is low, such as 30 km / h or less, and when the hybrid vehicle 100 decelerates and the vehicle speed is low, such as 25 km / h or less.

[0018] When the driver gets off the vehicle while the engine 24 is still in a state where it can be operated, the vehicle exterior notification system 14 emits a notification sound (hereinafter simply 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 it can be operated. N In this way, the vehicle exterior notification system 14 notifies the driver who has exited the vehicle that the engine 24 is still in a state in which it can operate, and urges the driver to put the engine 24 in a state in which it cannot operate when the driver leaves the hybrid vehicle 100.

[0019] In this embodiment, the vehicle exterior alarm system 14 generates an alarm sound S N However, the vehicle exterior warning system 14 uses the same sound source as the vehicle approach warning sound. N can be output.

[0020] In addition, the operating state S of the hybrid vehicle 100 V There are three states: ignition off ("IGN-OFF"), ignition on ("IGN-ON"), and ready-on ("READY-ON"). Of these states, the "state in which engine 24 can operate" is when hybrid vehicle 100 is in the READY-ON state.

[0021] In the IGN-OFF state, the vehicle drive system 11, the power generation system 12, the external power supply system 13 (i.e., the first power system), and the vehicle exterior notification system 14, etc. (i.e., the second power system) are not energized, and the entire hybrid vehicle 100 is in a stopped state. Therefore, in the IGN-OFF state, the hybrid vehicle 100 cannot start moving, and the vehicle exterior notification system 14, etc. also does not function.

[0022] The IGN-ON state is a state in which the first power system is not energized and the second power system is energized, and the hybrid vehicle 100 is partially functioning. In the IGN-ON state, the hybrid vehicle 100 cannot start moving, but the vehicle exterior alarm system 14 and the like are functioning. The IGN-ON state is sometimes referred to as an accessory mode or the like.

[0023] The READY-ON state is a state in which the first electric power system and the second electric power system are energized and all functions of the hybrid vehicle 100 are available. In the READY-ON state, the hybrid vehicle 100 is ready to start, and the vehicle exterior alarm system 14 and other systems are functioning. In this embodiment, being ready to start means that the first electric power system is energized, regardless of the state of the shift 32, the parking brake (not shown), and other systems, and all or part of the first electric power system can be operated substantially immediately as needed.

[0024] In this embodiment, the IGN-OFF state or the IGN-ON state in which at least the first power system is not energized may be collectively referred to as "READY-OFF."

[0025] The controller 15 is a control device that comprehensively controls each part that constitutes the hybrid vehicle 100. The controller 15 is configured with one or more computers. The controller 15 is programmed to operate each part of the hybrid vehicle 100 by performing calculations and the like at predetermined control cycles. One or more programs that the controller 15 executes to operate each part of the hybrid vehicle 100 constitute a control program for the hybrid vehicle 100. The control program for the hybrid vehicle 100 is provided or implemented in a state stored in a memory or other storage medium. Furthermore, the control program for the hybrid vehicle 100 may be provided via a telecommunications line or the like, or may be updated in whole or in part.

[0026] Specifically, the controller 15 includes a battery control unit that manages or controls the battery 10, a vehicle drive control unit that controls the drive of the hybrid vehicle 100 by the vehicle drive system 11, a power generation control unit that controls power generation by the power generation system 12, an external power supply control unit that controls external power supply by the external power supply system 13, and an alarm sound S by the vehicle exterior alarm system 14. N It functions as a notification control unit that controls the output of the above.

[0027] When controlling each part of the hybrid vehicle 100, the controller 15 can acquire or calculate vehicle parameters that indicate the operating state of each part as needed. In this embodiment, the controller 15 controls, for example, an accelerator 31, a shift 32, a door switch 33 (SW door ), Seat belt fastening switch 34 (SW buckle ), power switch 35 (SW power ), and the external power supply switch 36 (SW V2L ) etc. to acquire vehicle parameters as appropriate.

[0028] Amount of accelerator 31 operation (accelerator opening A PO ) represents the driver's drive request. The controller 15 calculates the operation amount of the accelerator 31 (accelerator opening A PO(not shown) to control the drive motor 21.

[0029] The shift 32 can be positioned, for example, in a "P (parking) range," a "R (reverse) range," a "N (neutral) range," and a "D (drive) range." The position of the shift 32 (hereinafter referred to as the "shift position") is used for drive control of the hybrid vehicle 100, as well as for detecting whether the driver or other passengers are getting in or out of the vehicle. In this embodiment, the controller 15 detects whether the driver is getting in or out of the vehicle based on the shift position.

[0030] The door switch 33 detects the open / closed states of the doors of the hybrid vehicle 100. The hybrid vehicle 100 has doors, for example, for the driver's seat, the passenger seat, the left and right rear seats, and the luggage compartment, and therefore the door switch 33 is provided for each of these doors. For simplicity in this embodiment, the door switch 33 outputs a signal indicating that a door is open when one or more of these doors are open, and outputs a signal indicating that the doors are closed when all doors are closed. In this embodiment, the controller 15 detects whether the driver has exited or entered the vehicle based on the open / closed states of the doors detected by the door switch 33.

[0031] The seat belt fastening / unfastening switch 34 detects the fastened / unfastened state of the seat belt based on the fastened / unfastened state of the seat belt buckle. In this embodiment, for simplicity, it is assumed that the seat belt fastening / unfastening switch 34 detects the fastened / unfastened state of the seat belt of the driver's seat. In this embodiment, the controller 15 detects the driver getting out and in based on the fastened / unfastened state of the seat belt detected by the seat belt fastening / unfastening switch 34.

[0032] The power switch 35 controls the operating state SV of the hybrid vehicle 100. When the power switch 35 is pressed in the IGN-OFF state without depressing the brake pedal (not shown), the controller 15 transitions the hybrid vehicle 100 to the IGN-ON state. When the power switch 35 is pressed while depressing the brake pedal in the IGN-OFF state, the controller 15 transitions the hybrid vehicle 100 to the READY-ON state. When the power switch 35 is pressed in the IGN-ON or READY-ON state, the controller 15 transitions the hybrid vehicle 100 to, for example, the IGN-OFF state. In this embodiment, the external power supply function is available in the READY-ON state.

[0033] The external power supply switch 36 switches the external power supply system 13 on and off. When the external power supply switch 36 is pressed while the external power supply system 13 is off, that is, while the external power supply function is not being used, the controller 15 operates the external power supply inverter 26, making the external power supply function available. When the external power supply switch 36 is pressed while the external power supply function is being used, the controller 15 stops the external power supply inverter 26 and ends the external power supply. In other words, the external power supply switch 36 is an operation switch that starts or stops the external power supply.

[0034] In this embodiment, the external power supply switch 36 emits an alarm sound S N That is, in this embodiment, the external power supply switch 36 is also used to muffle the notification sound S N Specifically, the controller 15 also functions as a mute switch for silencing the notification sound S N After the external power supply switch 36 is output, if it is detected that the external power supply switch 36 has been pressed and held down, the alarm sound S output by the vehicle exterior alarm system 14 is stopped. NThe external power supply switch 36 is muted. A long press operation of the external power supply switch 36 refers to pressing the switch for a predetermined time (e.g., 1.5 seconds) or longer and then releasing the switch. Note that the normal operation time of the external power supply switch 36, i.e., the time for which the external power supply switch 36 is pressed to turn the external power supply system 13 on / off, is usually shorter than this predetermined time.

[0035] The mute operation using the external power supply switch 36 is an example. When the controller 15 detects any other predetermined operation, it may mute the alarm sound S N can be muted.

[0036] In the following, the notification sound S when the external power supply function is used in the hybrid vehicle 100 will be described. N The control relating to the output and silencing of the sound and the specific configuration of the controller 15 relating to this control will now be described in detail.

[0037] Figure 2 shows the necessity of notification and the notification sound S N 2 is an explanatory diagram showing a state (announcement state) related to the output of the notification sound S N Regarding the output and muffling of the alarm, there are three states: an alarm state α, an alarm state β, and an alarm state γ.

[0038] The notification state α is a state in which it is not necessary to notify that the engine 24 is in a state in which it can operate. N When the hybrid vehicle 100 is in a READY-ON state in which the engine 24 can be operated and the driver is in the vehicle, or when the hybrid vehicle 100 is in a READY-OFF state in which the engine 24 cannot be operated regardless of whether the driver is in the vehicle or not, the hybrid vehicle 100 is in the notification state α.

[0039] 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 can operate, and the notification sound S NIn the READY-ON state in which the engine 24 can be operated, if the driver gets off the hybrid vehicle 100, the hybrid vehicle 100 enters the notification state β.

[0040] The notification state γ is a state in which the engine 24 is ready to operate, but the notification sound S N The alarm sound S is muted. N Regarding the above, the silence means the alarm sound S N , or, for example, in comparison with the notification state β, N In this embodiment, the volume of the informative sound S N By turning off the output of the alarm sound S or reducing its volume to substantially zero, N This achieves noise reduction.

[0041] The notification states are switched between when the controller 15 detects that predetermined conditions C1 to C5 are satisfied.

[0042] Condition C1 is the condition for transitioning from the notification state α to the notification state β, that is, the condition for transitioning from the notification state α to the notification state β N In this embodiment, the condition C1 is that the driver gets off the vehicle while the vehicle is still in the READY-ON state.

[0043] Condition C2 is the condition for transitioning from the notification state β to the notification state γ, that is, the condition for transitioning from the notification state β to the notification state γ N In this embodiment, the condition C2 is that the external power supply switch 36 is pressed and held.

[0044] Condition C3 is the condition for transitioning from the notification state γ to the notification state β, that is, the condition for transitioning from the notification state γ to the notification state β NThis is a condition for canceling the muting of the external power supply. In this embodiment, condition C3 is (1) that the external power supply is turned off by operating the external power supply switch 36, or (2) that the driver gets in the vehicle. Note that when an abnormality in the external power supply switch 36 is detected, the notification state γ is transitioned to the notification state β regardless of condition C3.

[0045] Condition C4 is the condition for transitioning from the notification state β to the notification state α, that is, the condition for transitioning from the notification state β to the notification state α. N In this embodiment, the condition C4 is a condition for stopping the output of the notification sound S when (1) the hybrid vehicle 100 is in the READY-OFF state, or (2) the driver gets in the vehicle. N The output itself is no longer necessary.

[0046] Condition C5 is the condition for transitioning from the notification state γ to the notification state α, that is, the condition for the notification sound S N In this embodiment, condition C5 is the same as condition C4, and the notification sound S is turned off when (1) the hybrid vehicle 100 is in the READY-OFF state, or (2) the driver gets in the vehicle. N The output itself is no longer necessary.

[0047] Condition C6 is a condition for transitioning from the notification state α to the notification state γ without passing through the notification state β, that is, a condition for transitioning from the notification state α to the notification state γ without passing through the notification state β. N In this embodiment, condition C6 is not set. Therefore, it is not possible to transition directly from the notification state α to the notification state γ without passing through the notification state β. This is because the driver is reliably notified that the engine 24 is in a state where it can be operated, and then the notification sound S N This is to give the user the option to intentionally mute the sound.

[0048] Figure 3 shows the notification sound S N3 is a block diagram showing the configuration of the controller 15 related to the output and silencing of the alarm. As shown in Fig. 3, the controller 15 includes an external power supply operation detection unit 41, a shift position detection unit 42, a seat belt fastening / unfastening determination unit 43, a door opening / closing determination unit 44, and an alarm control unit 45 in order to mutually transition between the alarm state α, the alarm state β, and the alarm state γ.

[0049] 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 operation of the external power supply switch 36 while external power supply is not being performed, the external power supply operation detection unit 41 activates the external power supply inverter 26 (AC-INV) to enable external power supply. Furthermore, 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 terminate 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 the operation time with a predetermined time (threshold value). In this way, the external power supply operation detection unit 41 detects a long press operation of the external power supply switch 36. Specifically, when the operation time is equal to or longer than the predetermined time, the external power supply operation detection unit 41 determines that the operation of the external power supply switch 36 is a long press operation. Hereinafter, an operation of the external power supply switch 36 whose operation time is less than the threshold value will be referred to as a normal operation, in contrast to a long press operation. In addition, a long press of the external power supply switch 36 produces an alarm sound S N It functions as a trigger to mute the device, and also as an operation to turn on external power supply.

[0050] Furthermore, the external power supply operation detection unit 41 can detect an abnormality in 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 (for example, one minute). Then, when the operation time of the external power supply switch 36 becomes equal to or greater than the abnormality detection threshold, the external power supply operation detection unit 41 detects that an abnormality has occurred in the external power supply switch 36.

[0051] The shift position detector 42 detects the shift position. In particular, the shift position detector 42 detects whether the shift position is in the P range in order to determine whether the notification state has been changed.

[0052] The seat belt fastening / unfastening determination unit 43 is a seat belt fastening / unfastening switch 34 (SW buckle ) is turned on / off to determine whether the seat belt is fastened or not. When the seat belt fastening / unfastening switch 34 is turned on, the seat belt fastening / unfastening determination unit 43 determines that the seat belt is fastened. On the other hand, when the seat belt fastening / unfastening switch 34 is turned off, the seat belt fastening / unfastening determination unit 43 determines that the seat belt is not fastened.

[0053] The door open / close determination unit 44 determines whether the door switch 33 (SW door ) is detected to determine whether the door is open or closed.

[0054] The shift position detection unit 42, the seat belt fastening / unfastening determination unit 43, and the door opening / closing determination unit 44 constitute a vehicle dismounting detection unit that detects the driver dismounting, and a vehicle entry detection unit that detects the driver entering the vehicle (hereinafter collectively referred to as a vehicle entry / exit detection unit 46). That is, the controller 15 detects the driver getting out and entering the vehicle based on a combination of the detection result of the shift position detection unit 42 and the determination results of the seat belt fastening / unfastening determination unit 43 and the door opening / closing determination unit 44. Specifically, the vehicle entry / exit detection unit 46 detects the driver getting out when the shift position is in the P range, the seat belt is not fastened, and the door is opened. The vehicle entry / exit detection unit 46 detects the driver entering the vehicle when (1) the P range is released or the seat belt is fastened, and (2) the door is closed. Hereinafter, the detection of the driver getting out by the vehicle entry / exit detection unit 46 will be referred to as a dismounting detection, and the detection of the driver entering the vehicle will be referred to as a entry detection. Furthermore, the detection of getting on or off by the getting on / off detection unit 46 may be collectively referred to as getting on / off detection.

[0055] The notification control unit 45 is configured to notify the operation state S of the hybrid vehicle 100. VBased on the operation status of the external power supply switch 36 and the result of the boarding / exiting detection, an alarm sound S N The notification control unit 45 includes an notification sound output control unit 47 and a sound muting control unit 48.

[0056] The notification sound output control unit 47 determines whether the hybrid vehicle 100 is in an operating state S V and the result of the getting on / off detection, the notification sound output control unit 47 determines whether or not a notification is necessary. Specifically, when the driver gets off the vehicle while the vehicle is in the READY-ON state, that is, when the condition C1 is met, 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 operate. Then, the notification sound output control unit 47 controls the vehicle exterior notification system 14 to output the notification sound S N On the other hand, when the vehicle enters the READY-OFF state or when the driver gets in, that is, when condition C4 or condition C5 is met, the notification sound output control unit 47 determines that it is no longer necessary to notify that the engine 24 is in a state where it can be operated. Then, the notification sound output control unit 47 controls the vehicle exterior notification system 14 to output the notification sound S N Stops the output of

[0057] The noise reduction control unit 48 determines whether the hybrid vehicle 100 is in an operating state S V Based on the operation status of the external power supply switch 36 and the result of the boarding / exiting detection, an alarm sound S N The sound silencing control unit 48 controls the silencing or cancellation of the notification sound S N The mute flag F mute The mute flag F mute is the alarm sound S N When the alarm sound S is muted, it is set to "set" state. N When the hybrid vehicle 100 is in the READY-OFF state, the muffling control unit 48 clears the muffling flag F mute When the hybrid vehicle 100 is in the READY-ON state, the muffling control unit 48 sets the muffling flag F muteThis clears the alarm sound S as needed. N is now in a state where it can be output.

[0058] In addition, when the hybrid vehicle 100 is in the READY-ON state (i.e., the mute flag F mute When a long press of the external power supply switch 36 is detected while the mute flag F is cleared, the mute control unit 48 exceptionally clears the mute flag F mute That is, when the condition C2 is met, the mute control unit 48 changes the mute flag F mute As a result, the sound suppression control unit 48 sets the notification sound S N Mute the.

[0059] On the other hand, (1) when the external power supply switch 36 is operated to turn off the external power supply, or (2) when the driver gets in the vehicle, the muffling control unit 48 sets the muffling flag F mute That is, when the condition C3 is satisfied, or when the condition C5 is satisfied due to the driver getting in the vehicle, the muffling control unit 48 clears the muffling flag F mute is cleared. N The mute will be canceled.

[0060] In addition, if an abnormality is detected in the external power supply switch 36, or if an abnormality is detected in the door or seat belt, the silencing control unit 48 sets the silencing flag F mute This is because when an abnormality occurs in the external power supply switch 36, the door, the seat belt, etc., the alarm sound S N In addition, when the P range is released and the door is closed, i.e., when the driver is in the vehicle, the muffling control unit 48 also sets the muffling flag F mute is cleared so as not to interfere with the output of the vehicle approach warning sound.

[0061] Figure 4 shows the mute flag F mute4 is a flowchart of a scene in which the driver is changed from a clear state to a set state. As shown in Fig. 4, when hybrid vehicle 100 is in the READY-ON state in step S10, getting-in and getting-out detection is performed in steps S11 and S12. Specifically, in step S11, it is confirmed whether the shift position is in the P range, and in step S12, it is confirmed whether the seat belt is unfastened. In addition, in step S13, it is confirmed whether the door is open. Then, when the shift position is in the P range, the seat belt is unfastened, and the door is open, it is determined that the driver has gotten out of the vehicle while it is in the READY-ON state, and the process proceeds to step S14.

[0062] In step S14, the external power supply switch 36 (SW V2L ) is detected, the mute control unit 48 sets the mute flag F mute When hybrid vehicle 100 is in the READY-OFF state in step S10, or when any of the conditions in steps S11 to S13 is not satisfied and it is determined that the driver has not exited the vehicle, muffling control unit 48 clears muffling flag F mute Keep clear.

[0063] Figure 5 shows the mute flag F mute 5 is a flowchart of a scene in which the external power supply operation detection unit 41 detects normal operation of the external power supply switch 36 in step S20, the external power supply is stopped. In this case, the control proceeds to step S21, and the mute control unit 48 clears the mute flag F mute On the other hand, if 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, control proceeds to step S22, where driver entry detection is performed.

[0064] In step S22, the shift position is confirmed. If it is confirmed in step S22 that the P range has been released, that is, that the shift position has transitioned from the P range to another range, the process proceeds to step S23. On the other hand, if it is confirmed in step S22 that the P range is maintained, the process proceeds to step S24.

[0065] In step S23, the open / closed state of the door is confirmed. If it is confirmed in step S23 that the door is closed, the control proceeds to step S21, and the muffling control unit 48 sets the muffling flag F mute On the other hand, if it is determined in step S23 that the door is open, the muffling control unit 48 changes the muffling flag F mute Keep it set.

[0066] In step S24, the fastening and unfastening state of the seat belt is confirmed. If it is confirmed in step S24 that the seat belt is fastened, the process proceeds to step S23. Then, as described above, the muffling control unit 48 sets the muffling flag F mute On the other hand, if it is determined in step S24 that the seat belt is not fastened, the muffling control unit 48 changes or maintains the muffling flag F mute Keep it set.

[0067] That is, when the external power supply is stopped or when the driver gets into the hybrid vehicle 100, the muffling control unit 48 sets the muffling flag F mute Change to clear state.

[0068] In the following, the notification sound S in the hybrid vehicle 100 configured as described above will be described. N The output and silencing effects will be explained.

[0069] Figure 6 shows the notification sound S N6, when the external power feeding operation detection unit 41 detects a normal operation or a long press operation of the external power feeding switch 36 in step S30, the control proceeds to step S31, where the controller 15 checks 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, the controller 15 operates the external power feeding inverter 26 (AC-INV) in step S32, and puts the external power feeding system 13 in a state where it can feed external power, and the control proceeds to step S33. At this point, the hybrid vehicle 100 is in the notification state α, and the muffling flag F mute is in the clear state.

[0070] In steps S33 to S35, the vehicle entry / exit detection unit 46 detects whether the driver has exited the vehicle. Specifically, in step S33, the shift position detection unit 42 checks whether the shift position is in the P range. In step S34, the seat belt fastening / unfastening determination unit 43 checks whether the seat belt is released. Then, in step S35, the door opening / closing determination unit 44 checks whether the door is open. As a result, when it is detected that the driver has exited the vehicle, the condition C1 is satisfied, and the notification state of the hybrid vehicle 100 transitions from the initial notification state α to the notification state β. That is, the control proceeds to step S36, and the notification sound output control unit 47 controls the vehicle exterior notification system 14 to output the notification sound S N Output the following.

[0071] Thereafter, in step S37, when the external power supply operation detection unit 41 detects a long press operation of the external power supply switch 36, the condition C2 is satisfied, and the notification state of the hybrid vehicle 100 transitions from the notification state β to the notification state γ. That is, the control proceeds to step S38, and the muffling control unit 48 sets the muffling flag F mute By setting the alarm sound S N is muted.

[0072] 7 is a flowchart relating to the transition from the notification state γ to the notification state β. As shown in FIG. 7, in step S40, the external power feeding operation detection unit 41 detects the operation (normal operation) of the external power feeding switch 36, thereby stopping the external power feeding inverter 26 and turning off the external power feeding. In this case, the condition C3 is satisfied, so the notification state of the hybrid vehicle 100 transitions from the notification state γ to the notification state β. That is, the control proceeds to step S41, and the notification sound S N This cancels the muting of the alarm sound S N is ready to be output as needed.

[0073] If it is determined in step S40 that the external power feeding can be continued, the control proceeds to step S42, where it is determined whether the driver has got into hybrid vehicle 100 or not.

[0074] 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 it is confirmed in step S42 that the P range is maintained, the process proceeds to step S44.

[0075] In step S43, the open / closed state of the door is confirmed. 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 determined in step S43 that the door is open, the control proceeds to step S45, and the alarm sound S is muted. N The muffling is maintained.

[0076] In step S44, the fastening and unfastening state of the seat belt is confirmed. If it is confirmed in step S44 that the seat belt is fastened, the process proceeds to step S43. Then, as described above, depending on the opening and closing state of the door, the control proceeds to step S41 or step S45, and the alarm sound S NOn the other hand, if it is determined in step S44 that the seat belt is not fastened, the control proceeds to step S45, and the sound muffling of the warning sound S N The muffling is maintained.

[0077] 8 is a flowchart relating 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. As shown in FIG. 8, in step S50, the operation state S of the hybrid vehicle 100 is V When the engine 24 is in the READY-OFF state, the power supply to the first power system is stopped, and the engine 24 cannot operate. N Therefore, when the notification state of the hybrid vehicle 100 is the notification state β, the condition C4 is satisfied. Also, when the notification state of the hybrid vehicle 100 is the notification state γ, the condition C5 is satisfied. Therefore, whether the notification state of the hybrid vehicle 100 is the notification state β or the notification state γ, the operation state S of the hybrid vehicle 100 is not required. V When the alarm sound S is in the READY-OFF state, the alarm state α is entered. That is, the control proceeds to step 51, and the alarm sound S is muted regardless of whether it has been muted or not. N The output of is stopped.

[0078] In step S50, the operating state S of the hybrid vehicle 100 is VWhen the hybrid vehicle 100 is in the READY-ON state, the control proceeds to step S52, where the driver's entry / exit detection unit 46 detects whether or not the driver has entered the vehicle. Specifically, in step S52, the shift position detection unit 42 detects that the P range has been released. In step S53, the door open / close determination unit 44 determines whether or not the door is closed. In addition, in step S54, the seat belt fastening / unfastening determination unit 43 determines whether or not the seat belt is fastened. Then, when the P range has been released and the door is closed, or when the seat belt is fastened and the door is closed, it is determined (detected) that the driver has entered the vehicle. As a result, when the notification state of the hybrid vehicle 100 is in the notification state β, the condition C4 is satisfied. In addition, when the notification state of the hybrid vehicle 100 is in the notification state γ, the condition C5 is satisfied. Therefore, the control proceeds to step S51, and the notification sound S is output regardless of whether it has been muted or not. N The output of is stopped.

[0079] On the other hand, if it is determined (detected) in steps S52 to S54 that the driver is not in the vehicle, the control proceeds to step S55. N Specifically, when the notification state β is in, the notification sound S N When the output of the alarm is maintained and the alarm state is γ, the alarm sound S N The muffling is maintained.

[0080] Figure 9 shows the notification sound S N 9A is a time chart showing the output state of the hybrid vehicle 100. V 9B shows the transition of the external power supply switch 36 (SW V2L ) is shown. The arrow in FIG. 9(B) indicates the timing (down edge) at which the operation of the external power supply switch 36 becomes effective for control purposes. FIG. 9(C) shows the operating state of the external power supply inverter 26 (AC-INV). FIG. 9(D) shows the mute flag F mute 9(F) shows the setting state of the notification sound S NThe horizontal axis (time) in each chart in FIG. 9 is in units of seconds, for example.

[0081] 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 in operation (IGN-OFF state). V is the time when the state transitions from IGN-OFF to IGN-ON. Time t3 is the time when the external power supply switch 36 is operated (normal operation) in the IGN-ON state that transitioned at time t2. Time t4 is the time when the state transitions from IGN-ON to READY-ON. Time t5 is the time when normal operation of the external power supply switch 36 is first detected in the READY-ON state that transitioned at time t4. Time t6 is the time when the door is opened. In FIG. 9, time t7 is a missing number. Time t8 is the time when a long press operation of the external power supply switch 36 begins in the READY-ON state that transitioned at time t4. Time t9 is the time when a long press operation of the external power supply switch 36 is detected in the READY-ON state that transitioned at time t4. Time t 10 is the time when the READY-ON state, which started at time t4, transitions to the READY-OFF state (IGN-ON or IGN-OFF). 11 is the time t 10 This is the time when the system transitions from the READY-OFF state, which started at time t, to the READY-ON state again. 12 is the time t 11 This is the time when the long press operation of the external power supply switch 36 is started in the READY-ON state starting from time t 13 is the time t 11 This is the time when a long press of the external power supply switch 36 is detected in the READY-ON state starting from time t 14 is the time when the door is closed. 15 is the time when the door is opened again. 16 is the time t 11 This is the time when normal operation of the external power supply switch 36 is detected in the READY-ON state starting from .

[0082] As shown in Fig. 9(A), the IGN-OFF state is maintained until time t2, and therefore neither the first nor the second power system is energized. Therefore, even if the external power supply switch 36 is operated at time t1 as shown in Fig. 9(B), the external power supply inverter 26 is not operated as shown in Fig. 9(C). In other words, the external power supply function cannot be used.

[0083] Furthermore, as shown in Fig. 9(A), the IGN-ON state is maintained from time t2 to time t4, so that the second power system is energized but the first power system including the power generation system 12 and the external power supply system 13 is not energized. For this reason, even if the external power supply switch 36 is operated at time t3 as shown in Fig. 9(B), the external power supply inverter 26 is not operated as shown in Fig. 9(C). That is, the external power supply function cannot be used.

[0084] On the other hand, when the hybrid vehicle 100 enters the READY-ON state at time t4 as shown in FIG. 9(A), the first power system including the power generation system 12 and the external power supply system 13 is energized. Therefore, when the external power supply switch 36 is operated at time t5 as shown in FIG. 9(B), the external power supply inverter 26 is operated as shown in FIG. 9(C). This makes it possible to use the external power supply function. Also, as shown in FIG. 9(E), the operating state S V When the READY-ON state is reached, the silence flag F mute Therefore, as long as the READY-ON state is maintained, the alarm sound S N is output as needed.

[0085] Here, as shown in Fig. 9(D), the door is opened at time t6, and the driver's exit from the vehicle is detected while the vehicle is still in the READY-ON state. Therefore, as shown in Fig. 9(F), the notification sound S Nis output, and the driver who has dismounted is notified that the engine 24 is in a state in which it can be operated. After that, at time t9, when a long press of the external power supply switch 36 is detected, the mute flag F mute Therefore, the door is opened and the driver remains out of the vehicle, but the alarm sound S is turned on at time t9 as shown in FIG. N is muted.

[0086] As shown in FIG. 9(A), the operating state S V At time t 10 When the state shifts to READY-OFF at time t 10 At this time, the mute flag F mute However, since the READY-OFF state has been entered, power supply to the first power system including the power generation system 12 and the external power supply system 13 has been stopped, and the engine 24 cannot be operated. N 9(F), the mute flag F mute Regardless of the state of N is not output.

[0087] Then, at time t 11 When the READY-ON state is restored, the mute flag F mute will be cleared again, and the alarm sound S will be activated if necessary. N In this case, the door remains open as shown in FIG. 9(B), and it is still determined that the driver has exited the vehicle. Therefore, as shown in FIG. 9(F), at time t 11 Immediately after the alarm sound S N is output, and the driver who is getting off the vehicle is notified that the engine 24 is in a state where it can be operated.

[0088] And at time t 13When a long press of the external power supply switch 36 is detected, the mute flag F is set as shown in FIG. 9(E). mute Therefore, as shown in FIG. 9(F), at time t 13 Alarm sound S N is muted.

[0089] As mentioned above, the conditions for detecting whether a driver has gotten off the vehicle and the conditions for detecting whether a driver has gotten on are different, and the driver is not determined to have gotten on just because the door is closed. N If the door is closed during the mute mode, the mute flag F mute is not cleared, and the silence of the alarm sound SN continues. 14 The door is kept closed intelligently at time t 14 From now on, the notification sound S N The silencing will continue.

[0090] However, when the external power supply switch 36 is operated to turn off the external power supply, the mute flag F mute is cleared and the alarm sound S N The mute of the alarm sound S is released and the alarm sound S is activated as needed. N As shown in FIG. 9(B) and FIG. 9(C), the external power supply is turned on at time t 16 As a result, the mute flag F mute As a result, as shown in FIG. 9(F), the notification sound S N is time t 16 is output again from

[0091] Figure 10 shows the notification sound S N 10(A) to 10(F) are the same as those shown in FIGS. 9(A) to 9(F). However, in FIG. 10, in the READY-ON state that begins at time t4, operation of the external power supply switch 36 is detected at time t7.

[0092] As shown in Fig. 10(B), when operation of the external power supply switch 36 is detected at time t7, the external power supply inverter 26 is stopped accordingly as shown in Fig. 10(C). Therefore, the external power supply becomes unavailable at time t7. In addition, the mute flag F mute is cleared when the external power supply switch 36 is operated to turn off the external power supply. mute Since the notification sound S is in the clear state, the clear state continues. Therefore, as shown in FIG. 10(F), the notification sound S N That is, as long as the driver remains out of the vehicle and the engine 24 is in a state where it can be operated, the notification sound S is output regardless of whether the external power supply function is being used or not. N The output continues.

[0093] Note that from time t4 to time t 10 In this scene, for example, the driver or the like uses the external power feeding function while the hybrid vehicle 100 is running, and then the driver gets off the vehicle. 10 In this scene, for example, the driver turns on the external power supply function and gets off the vehicle to use the external power supply function for outdoor activities, and then the warning sound S N This is the scene where he hears the sound and goes back to muffle it.

[0094] [Variations] In the above embodiment, by performing a predetermined operation (long press of the external power supply switch 36), the sound that should be output by the hybrid vehicle 100 is muted at the driver's will while the hybrid vehicle 100 remains in a state in which it can start moving. N When the hybrid vehicle 100 is in a state where the alarm sound S N In addition, when power is being supplied to an external device outside the vehicle, the door of the hybrid vehicle 100 is often open, so the warning sound S NWith the notification sound S muted, the hybrid vehicle 100 is vulnerable to theft. For this reason, it is preferable to include a step of verifying the identity of the driver in the ride detection process in the above embodiment, as described below. N Even if the sound is muted, theft of the hybrid vehicle 100 can be more easily prevented.

[0095] 11 is a flowchart according to a modified example. As shown in FIG. 11, in step S60, an informative sound S N When the sound of the vehicle is muted, if some of the entry detection conditions are satisfied, it is confirmed whether the person who satisfied the part of the entry detection conditions is the driver. Specifically, if the shift position detection unit 42 detects that the P range is released in step S61, or if the seat belt fastening / unfastening determination unit 43 determines that the seat belt is fastened in step S62, the control proceeds to step S63, where the controller 15 determines whether the person who released the P range or fastened the seat belt is the driver (owner) of the hybrid vehicle 100.

[0096] In this case, controller 15 functions as a driver (personal identity) authentication unit. Controller 15 can determine whether or not the person who has released the P range or fastened the seat belt is the driver (owner) of hybrid vehicle 100 by, for example, fingerprint authentication, face authentication, authentication using a smart key, authentication using a device (smartphone, etc.) linked to hybrid vehicle 100, or any other arbitrary authentication method.

[0097] If it is determined in step S63 that the person who has released the P range or fastened the seat belt is the driver of the hybrid vehicle 100, the control proceeds to step S64. If it is determined in step S64 by the door open / close determination unit 44 that the door is closed, the entry detection condition is met. Therefore, the control proceeds to step S65, and the notification sound S N output is stopped.

[0098] On the other hand, if it is determined in step S63 that the person who released the P range or fastened the seat belt is not the driver of the hybrid vehicle 100, the control proceeds to step S66. In step S66, the controller 15 determines the operating state S of the hybrid vehicle 100. V In step S67, the controller 15 causes the mute control unit 48 to forcibly set the mute flag F mute By clearing the alarm sound, the mute function is cancelled. This enables the vehicle exterior alarm system 14 to output sound or voice. After that, in step S68, the controller 15 causes the vehicle exterior alarm system 14 to output an alarm sound for theft prevention. The alarm sound for theft prevention is a vehicle approaching alarm sound or an alarm sound S N and at least the source or volume is different.

[0099] In the above embodiment and modified example, the notification sound S N In the above example, the operation (predetermined operation) that triggers silencing the notification sound S is a long press of the external power supply switch 36, but this is just one example. N The sound may be muted by any predetermined operation other than a long press of the external power supply switch 36.

[0100] In the above embodiment and modified example, the operating state S of the hybrid vehicle 100 V When the state changes from READY-ON to READY-OFF, the mute flag F mute The operating state S of the hybrid vehicle 100 is maintained, but is not limited to this. V When the state becomes READY-OFF, the mute flag F mute In addition, the silence flag F may be changed without departing from the spirit of the above embodiment and modified examples. mute Other settings can be changed as desired.

[0101] As described above, in the control method for the hybrid vehicle 100 according to the above-described embodiment and modification, when it is detected that the driver has dismounted from the hybrid vehicle 100 while the engine 24 is in a state in which the engine 24 can be operated, the notification sound S N When external power supply is performed to supply power from the battery 10 to an external device while the engine 24 is in a state where it is possible to operate, if it is detected that the driver has gotten off the vehicle and a predetermined specific operation input (long press operation of the external power supply switch 36) is detected, an alarm sound S N is muted.

[0102] In this way, in principle, when the driver gets off the hybrid vehicle 100 while the engine 24 is still in a state where it can be operated, the notification sound S N This is an important warning for the driver, so the hybrid vehicle 100 issues the warning sound S regardless of the driver's will (desire). 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 still in a state where it can operate. In this case, the warning sound S N Therefore, the alarm sound S is output intermittently or continuously. N Therefore, as described above, the hybrid vehicle 100 outputs the notification sound S in response to the driver's intention by inputting a predetermined specific operation, such as pressing and holding the external power supply switch 36. N That is, the hybrid vehicle 100 is designed to muffle the notification sound S N Within the scope that does not impair the meaning of the above, the notification sound S N As a result, the hybrid vehicle 100 can muffle the notification sound S N Although important warnings are given by outputting the warning sound S, excessive warning sounds S can be output at the driver's discretion in situations that may cause discomfort to the driver. N can be stopped.

[0103] In the control method for a hybrid vehicle according to the above embodiment and modified example, the specific operation input is a long press of an operation switch (external power supply switch 36) that starts or stops external power supply. N A typical situation where the output of the alarm sound S is unavoidably continued is when the external power supply function is used. N The driver can turn off the alarm sound S depending on the situation. N Easy to muffle.

[0104] In the hybrid vehicle control method of the above embodiment and modified example, when the shift 32 is set to the parking range (P range), the seat belt is released, and the door is opened, it is detected that the driver has exited the vehicle. In this way, when the driver's exit is determined based on the shift position, fastening / unfastening of the seat belt, and opening / closing of the door, it is possible to easily and reliably detect that the driver has exited the vehicle. As a result, the hybrid vehicle 100 emits the warning sound S N can be output at the correct timing.

[0105] In the control method for a hybrid vehicle according to the above embodiment and modified example, when external power supply is performed in a state in which the engine 24 can be operated, the warning sound S N After outputting, the alarm sound S N That is, the hybrid vehicle 100 does not directly transition from the notification state α to the notification state γ, but silences the notification sound S N After passing through the notification state β, the notification sound S N In this way, even when the external power feeding function is used, the hybrid vehicle 100 is allowed to transition to the notification state γ in which the notification sound S is muted. N When the warning sound S is output at least once, the driver can be sure that the engine 24 is in a state where it can be operated, and then, based on the driver's judgment of the situation, the warning sound S N Therefore, the important warning that the engine 24 is ready to run is reliably given, and the warning sound SN The significance of outputting the above is particularly unlikely to be lost.

[0106] In the control method for a hybrid vehicle according to the above embodiment and modified example, when external power supply is stopped or when it is detected that the driver is in the vehicle, an alarm sound S N The alarm sound S is muted (see Figure 5). N is output to alert the user to an important event, so the alarm sound S N The silencing of the alarm sound S is an exceptional measure. N When the special situation that requires the alarm to be muted is resolved, the alarm sound S N If the external power supply is stopped or if the driver is detected to be on board, the warning sound S N Since the situation where the notification sound S should be silenced has passed, the hybrid vehicle 100 can silence the notification sound S as described above. N Cancel the mute of the alarm sound S if necessary. N As a result, the hybrid vehicle 100 outputs the notification sound S N Without continuing the muffling of the alarm sound S unnecessarily, the alarm sound S is accurately emitted as needed. N That is, hybrid vehicle 100 can accurately notify the driver that engine 24 is in a state where it can be operated.

[0107] In the hybrid vehicle control method of the above embodiment and modified example, when it is detected that at least one of the shift 32 has shifted from the parking range (P range) to another range or that the seat belt has been fastened, and when it is detected that the door is closed, it is determined that the driver has entered the vehicle. In this way, by determining (detecting) that the driver has entered the vehicle based on the shift position or fastening / unfastening of the seat belt and the opening and closing of the door, the hybrid vehicle 100 can particularly accurately detect that the driver has entered the vehicle. As a result, the hybrid vehicle 100 generates the warning sound S N This allows the mute to be cancelled at a particularly precise time.

[0108] In the control method for a hybrid vehicle according to the above embodiment and the modified example, the notification sound S N is a sound common to the vehicle approach notification sound that notifies people outside the vehicle of the approach of the hybrid vehicle 100. The vehicle approach notification sound is usually a sound that can notify people outside the vehicle of the approach of the hybrid vehicle 100 without causing discomfort to people outside the vehicle. For this reason, as described above, the notification sound S N In addition, by using the vehicle approach notification sound, the hybrid vehicle 100 can notify the driver and others outside the vehicle that the engine 24 is in a state where it can be operated without causing discomfort. N Therefore, the hybrid vehicle 100 can reduce the opportunity to muffle the notification sound S N This will make it easier to continue issuing warnings.

[0109] In the control method for a hybrid vehicle according to the above embodiment and the modified example, the notification sound S N When the shift 32 is shifted from the parking range (P range) to another range or the seat belt is fastened while the sound is muted, it is determined whether the shift 32 is operated or the seat belt is fastened by the driver. When it is determined that the shift 32 is operated or the seat belt is fastened by a person other than the driver, the warning sound S N Regardless of the mute setting, the notification sound S N This outputs a warning sound different from the alarm sound S N Even in a situation where the sound is muted, theft of hybrid vehicle 100 is likely to be prevented.

[0110] In the control method for a hybrid vehicle according to the above embodiment and the modified example, the warning sound is output regardless of whether the door is open or closed. That is, when the hybrid vehicle 100 is in danger of being stolen, the hybrid vehicle 100 quickly outputs a warning sound even if the door is open. As a result, the warning sound S N Even in a situation where the sound is muted, theft of hybrid vehicle 100 is particularly likely to be prevented.

[0111] The control device (controller 15) of the hybrid vehicle according to the above embodiment and modified example (a) emits an alarm sound S 106 to the outside of the hybrid vehicle 100 to notify the driver that the engine 24 is in a state where it can be operated, when the control device detects that the driver has dismounted from the hybrid vehicle 100 while the engine 24 is in a state where it can be operated. N and (b) when the driver gets off the vehicle and a predetermined specific operation input is detected in a case where external power supply is performed to supply power from the battery 10 to an external device while the engine 24 is in a state where the engine 24 can operate, the notification sound output control unit 47 outputs the notification sound S. N In this way, since the controller 15 includes the notification sound output control unit 47 and the noise reduction control unit 48, the hybrid vehicle 100 can basically reduce the amount of the notification sound S N Although important warnings are given by outputting the warning sound S, excessive warning sounds S can be output at the driver's discretion in situations that may cause discomfort to the driver. N can be stopped.

[0112] The control program for the hybrid vehicle according to the above embodiment and the modified example includes: (a) causing the control device (controller 15) of the hybrid vehicle 100 to emit an alarm sound S to the outside of the hybrid vehicle 100 when the control device detects that the driver has dismounted while the engine 24 is in a state where the engine 24 can be operated; N and (b) when the driver gets off the vehicle and a predetermined specific operation input is detected in a case where external power supply is performed to supply power from the battery 10 to an external device while the engine 24 is in a state where the engine 24 can operate, the notification sound output control unit 47 outputs the notification sound S. N In this way, the control program for the hybrid vehicle causes the controller 15 to function as the notification sound output control unit 47 and the sound silencing control unit 48, so that the hybrid vehicle 100 can, in principle, silence the notification sound S N Although important warnings are given by outputting the warning sound S, excessive warning sounds S can be output at the driver's discretion in situations that may cause discomfort to the driver. N can be stopped.

[0113] The storage medium storing the control program for the hybrid vehicle according to the above embodiment and modified example includes: (a) a control device (controller 15) of the hybrid vehicle 100 that outputs an alarm sound S to the outside of the hybrid vehicle 100 when it is detected that the driver has dismounted while the engine 24 is in a state where the engine 24 can be operated; N and (b) when the driver gets off the vehicle and a predetermined specific operation input is detected in a case where external power supply is performed to supply power from the battery 10 to an external device while the engine 24 is in a state where the engine 24 can operate, the notification sound output control unit 47 outputs the notification sound S. N The control program stores a control program that causes the device to function as a sound silencing control unit 48 that silences the sound.

[0114] The above describes embodiments and modifications of the present invention, but the configurations described in the above embodiments and modifications merely illustrate some of the application examples 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, comprising: When detecting that the driver has dismounted from the hybrid vehicle while the engine is in an operable state, an alarm sound is output to the outside of the hybrid vehicle to notify that the engine is in an operable state; When external power supply is performed to supply battery power to an external device while the engine is in a state where it is possible to operate, the notification sound is muted when it is detected that the driver has gotten off the vehicle and a predetermined specific operation input is detected. A method for controlling a hybrid vehicle.

2. 2. A method for controlling a hybrid vehicle according to claim 1, the specific operation input is a long press operation of an operation switch that starts or stops the external power supply, A method for controlling a hybrid vehicle.

3. 2. A method for controlling a hybrid vehicle according to claim 1, Detecting that the driver has exited the vehicle when the shift is set to park, the seat belt is unfastened, and the door is opened. A method for controlling a hybrid vehicle.

4. 2. A method for controlling a hybrid vehicle according to claim 1, When the external power feeding is performed in a state in which the engine can operate, the notification sound is output in response to detection of the driver getting off the vehicle, and then the notification sound can be muted. A method for controlling a hybrid vehicle.

5. 2. A method for controlling a hybrid vehicle according to claim 1, When the external power supply is stopped or when it is detected that the driver has entered the vehicle, muting of the notification sound is canceled. A method for controlling a hybrid vehicle.

6. 6. A method for controlling a hybrid vehicle according to claim 5, When it is detected that at least one of the shift has been shifted from the parking range to another range or that the seat belt has been fastened, and when it is detected that the door is closed, it is determined that the driver has got into the vehicle. A method for controlling a hybrid vehicle.

7. 2. A method for controlling a hybrid vehicle according to claim 1, The notification sound is a sound common to a vehicle approach notification sound that notifies the outside of the vehicle of the approach of the hybrid vehicle. A method for controlling a hybrid vehicle.

8. 2. A method for controlling a hybrid vehicle according to claim 1, When the notification sound is muted, if it is detected that the shift has been shifted from the parking range to another range or that the seat belt has been fastened, it is determined whether the shift operation or the fastening of the seat belt has been performed by the driver, When it is determined that a person other than the driver has operated the shift or fastened the seat belt, a warning sound different from the notification sound is output to the outside of the hybrid vehicle regardless of a mute setting of the notification sound. A method for controlling a hybrid vehicle.

9. 9. A method for controlling a hybrid vehicle according to claim 8, The warning sound is output regardless of whether the door is open or closed. A method for controlling a hybrid vehicle.

10. A control device for a hybrid vehicle, an alert sound output control unit that, when detecting that a driver has dismounted from the hybrid vehicle while the engine is in an operational state, outputs an alert sound to the outside of the hybrid vehicle to notify that the engine is in an operational state; a muffling control unit that mute the notification sound when detecting that the driver has dismounted from the vehicle and when detecting a predetermined specific operation input, in a case where external power feeding is performed to supply electric power from the battery to an external device while the engine is in a state where it can operate; A control device for a hybrid vehicle comprising:

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