Hybrid vehicle, control method of hybrid vehicle, power feeding mode setting system, and power feeding mode setting method

Abstract

To enable setting to be performed easily by a user from a power feeding mode when the user desires external power feeding.SOLUTION: A hybrid vehicle includes: an engine that outputs power by using fuel from a fuel tank; a power generator that generates power by using the power from the engine; a power storage device connected to a power line together with the power generator; and a control device. When a user desires external power feeding of feeding power from a vehicle to an external device, the control device presents a plurality of power feeding modes having different power feeding characteristics to the user, and when the user selects any one of the plurality of power feeding modes, external power feeding is performed in the power feeding mode selected by the user.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a hybrid vehicle, a control method for a hybrid vehicle, a power supply mode setting system, and a power supply mode setting method.

Background Art

[0002] Conventionally, in a power control system that controls power exchanged between a vehicle and power facilities, when power is discharged from the vehicle to the power facilities, it has been proposed that the power discharged from the vehicle per unit time be set to a power discharge set value set by the user (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above system, when the user desires external power supply from the vehicle to the outside of the vehicle, the user may feel it difficult to understand how to set the power discharge set value. For this reason, when the user desires external power supply, it is required that the user can more easily set the power supply mode.

[0005] The hybrid vehicle, the control method for the hybrid vehicle, the power supply mode setting system, and the power supply mode setting method of the present disclosure mainly aim to enable the user to more easily set the power supply mode when the user desires external power supply.

Means for Solving the Problems

[0006] The hybrid vehicle, the control method for the hybrid vehicle, the power supply mode setting system, and the power supply mode setting method of the present disclosure have taken the following means to achieve the above main object.

[0007] [1] The hybrid vehicle of the present disclosure includes an engine that outputs power using fuel from a fuel tank, a generator that generates electricity using the power from the engine, a power storage device connected to a power line together with the generator, and a control device, and is a hybrid vehicle characterized in that when the user desires external power supply from the vehicle to the outside of the vehicle, the control device presents the user with a plurality of power supply modes having different power supply characteristics, and when the user selects any one of the plurality of power supply modes, the control device performs the external power supply in the power supply mode selected by the user. This is the gist.

[0008] In the hybrid vehicle of the present disclosure, when the user desires external power supply from the vehicle to the outside of the vehicle, the control device presents the user with a plurality of power supply modes having different power supply characteristics, and when the user selects any one of the plurality of power supply modes, the control device performs the external power supply in the power supply mode selected by the user. Therefore, since the user only needs to select any one of the plurality of power supply modes, the user can set it more easily than the power supply mode. Here, "external power supply" may be power supply from the vehicle to an external device, or may be power supply from the vehicle to a house or the like. "External device" is a device that is not a component of the vehicle, and examples thereof include electrical appliances and portable terminals.

[0009] [2] In the hybrid vehicle described above (the hybrid vehicle described in [1]), the plurality of power supply modes may include at least two of a first power supply mode that prioritizes noise suppression, a second power supply mode that prioritizes power supply performance, and a third power supply mode that prioritizes fuel efficiency, as a predetermined power supply mode for operating the engine and generating electricity by the generator.

[0010] [3] In the hybrid vehicle described above (the hybrid vehicle described in [2]), the predetermined power supply mode may be a mode in which the engine is operated and the generator generates electricity at least when the power storage ratio of the power storage device is less than a predetermined ratio during the external power supply.

[0011] [4]In the hybrid vehicle described above (the hybrid vehicle described in any one of [1] to [3]), the control device may present to the user a recommended power supply mode recommended based on the current environment among the plurality of power supply modes. In this way, the hybrid vehicle can present the recommended power supply mode based on the current environment to the user.

[0012] [5]In the hybrid vehicle described above (the hybrid vehicle described in [4]), the control device may present to the user in different manners for the recommended power supply mode and other power supply modes. In this way, it becomes easier for the user to recognize the recommended power supply mode and to select the recommended power supply mode.

[0013] [6]In the hybrid vehicle described above (the hybrid vehicle described in [4] or [5]), the plurality of power supply modes include a predetermined power supply mode in which when the power storage ratio of at least the power storage device is less than a predetermined ratio during the external power supply, the engine is operated and the generator generates power, a first power supply mode that prioritizes noise suppression, a second power supply mode that prioritizes power supply performance, and a third power supply mode that prioritizes fuel efficiency. The control device may set the first power supply mode as the recommended power supply mode when the current time is a predetermined time period, set the second power supply mode as the recommended power supply mode when the current time is not the predetermined time period and the fuel amount in the fuel tank is equal to or more than a predetermined amount, and set the third power supply mode as the recommended power supply mode when the current time is not the predetermined time period and the fuel amount is less than the predetermined amount. In this way, the hybrid vehicle can set the recommended power supply mode based on whether the current time is a predetermined time period and whether the fuel amount in the fuel tank is equal to or more than a predetermined amount.

[0014] [7] In the hybrid vehicle (the hybrid vehicle described in [6]) described above, when the current time is within the predetermined time period and the current location of the vehicle is within a residential area, the first power supply mode is set as the recommended power supply mode. When the current location of the vehicle is outside the residential area, the second power supply mode or the third power supply mode may be set as the recommended power supply mode based on the fuel quantity. In this way, the hybrid vehicle can set the recommended power supply mode based on whether the current location of the vehicle is within a residential area or not.

[0015] [8] In the hybrid vehicle (the hybrid vehicle described in any one of [2], [6], and [7]) described above, the first power supply mode is a mode in which the engine is operated to output a first power, the second power supply mode is a mode in which the engine is operated to output a second power greater than the first power, and the third power supply mode may be a mode in which the engine is operated at an operating point with higher efficiency compared to the first and second power supply modes.

[0016] [9] The control method of the hybrid vehicle of the present disclosure is a control method of a hybrid vehicle including an engine that outputs power using fuel from a fuel tank, a generator that generates electricity using the power from the engine, and a power storage device connected to a power line together with the generator, when a user desires external power supply for supplying power from the vehicle to the outside of the vehicle, a plurality of power supply modes with different power supply characteristics are presented to the user, and when the user selects any one of the plurality of power supply modes, the external power supply is performed in the power supply mode selected by the user. This is the gist.

[0017] In the control method of the hybrid vehicle of the present disclosure, when the user desires external power supply for supplying power from the vehicle to the outside of the vehicle, a plurality of power supply modes with different power supply characteristics are presented to the user. When the user selects any one of the plurality of power supply modes, external power supply is performed in the power supply mode selected by the user. Therefore, since the user only needs to select any one of the plurality of power supply modes, it can be set more easily by the user than the power supply mode.

[0018]

[10] The power supply mode setting system of the present disclosure is A power supply mode setting system used for setting a power supply mode when a user desires external power supply for supplying power from a vehicle to the outside of the vehicle for a hybrid vehicle including an engine that outputs power using fuel from a fuel tank, a generator that generates power using the power from the engine, a power storage device connected to a power line together with the generator, and a control device, presents a plurality of the power supply modes with different power supply characteristics to the user, and when the user selects any one of the plurality of power supply modes, causes the vehicle to perform the external power supply in the power supply mode selected by the user. The gist is this.

[0019] In the power supply mode setting system of the present disclosure, a plurality of power supply modes with different power supply characteristics are presented to the user. When the user selects any one of the plurality of power supply modes, the vehicle is caused to perform external power supply in the power supply mode selected by the user. Therefore, since the user only needs to select any one of the plurality of power supply modes, it can be set more easily by the user than the power supply mode. Here, the "power supply mode setting system" may be a control device mounted on a hybrid vehicle, or may be a portable terminal capable of communicating with the hybrid vehicle, for example, a smartphone or a tablet terminal.

[0020]

[11] The power supply mode setting method of the present disclosure is A power feeding mode setting method used for setting a power feeding mode when a user desires external power feeding from a vehicle to the outside of the vehicle, for a hybrid vehicle including an engine that outputs power using fuel from a fuel tank, a generator that generates electricity using the power from the engine, a power storage device connected to a power line together with the generator, and a control device, present a plurality of the power feeding modes having different power feeding characteristics to the user, and when the user selects any one of the plurality of power feeding modes, cause the vehicle to perform the external power feeding in the power feeding mode selected by the user, which is the gist.

[0021] In the power feeding mode setting method of the present disclosure, a plurality of power feeding modes having different power feeding characteristics are presented to the user, and when the user selects any one of the plurality of power feeding modes, the vehicle is caused to perform external power feeding in the power feeding mode selected by the user. Therefore, since the user only needs to select any one of the plurality of power feeding modes, the user can set it more easily than the power feeding mode.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0023] Embodiments for carrying out the present disclosure will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a hybrid vehicle 20 according to an embodiment of the present disclosure. As shown in FIG. 1, the hybrid vehicle 20 according to the embodiment includes an engine 22, a planetary gear 30, motors MG1 and MG2, inverters 41 and 42, a battery 50, a connector 55, an external power supply device 58, a navigation device 60, and a hybrid electronic control unit (hereinafter referred to as "HVECU") 70.

[0024] The engine 22 is configured as an internal combustion engine that outputs power using fuel such as gasoline or light oil from a fuel tank 25. The crankshaft 23 of the engine 22 is connected to the carrier of the planetary gear 30. The engine 22 is controlled for operation by an engine electronic control unit (hereinafter referred to as "engine ECU") 24.

[0025] The engine ECU 24 includes a microcomputer having a CPU, ROM, RAM, flash memory, input / output ports, and communication ports. The engine ECU 24 inputs signals from various sensors via the input ports. For example, the engine ECU 24 inputs the crank angle θcr from a crank position sensor 23a that detects the rotational position of the crankshaft 23. The engine ECU 24 outputs various control signals via the output ports. For example, the engine ECU 24 outputs control signals to an intake valve, a fuel injection valve, and a spark plug (all not shown). The engine ECU 24 calculates the rotational speed Ne of the engine 22 based on the crank angle θcr of the crankshaft 23. The engine ECU 24 communicates with the HVECU 70.

[0026] The planetary gear 30 is configured as a single pinion type planetary gear mechanism. The sun gear of the planetary gear 30 is connected to the rotor of the motor MG1. The ring gear of the planetary gear 30 is connected to the drive shaft 37 which is connected to the drive wheels 39a, 39b via the differential gear 38. The carrier of the planetary gear 30 is connected to the crankshaft 23 of the engine 22.

[0027] The motors MG1, MG2 are configured as, for example, synchronous motor - generators. The rotor of the motor MG1 is connected to the sun gear of the planetary gear 30 as described above. The rotor of the motor MG2 is connected to the drive shaft 37. The inverters 41, 42 are configured as inverter circuits having a plurality of switching elements. The inverters 41, 42 are connected to the battery 50 via the power line 54. The motor electronic control unit (hereinafter referred to as "motor ECU") 40 rotates the motors MG1, MG2 by switching the plurality of switching elements of the inverters 41, 42.

[0028] The motor ECU 40 includes a microcomputer similar to the engine ECU 24. The motor ECU 40 inputs signals from various sensors via the input ports. For example, the motor ECU 40 inputs the rotational positions θm1, θm2 from the rotational position sensors 43, 44 that detect the rotational positions of the rotors of the motors MG1, MG2. The motor ECU 40 outputs various control signals via the output ports. For example, the motor ECU 40 outputs control signals to the inverters 41, 42. The motor ECU 40 calculates the electrical angles θe1, θe2 and the rotational speeds Nm1, Nm2 of the motors MG1, MG2 based on the rotational positions θm1, θm2 of the rotors of the motors MG1, MG2. The motor ECU 40 communicates with the HVECU 70.

[0029] The battery 50 is configured as, for example, a lithium-ion secondary battery or a nickel-metal hydride secondary battery. The battery 50 is connected to the inverters 41 and 42 via the power line 54 as described above. The battery 50 is managed by a battery electronic control unit (hereinafter referred to as "battery ECU") 52.

[0030] The battery ECU 52 includes a microcomputer in the same manner as the engine ECU 24. The battery ECU 52 inputs signals from various sensors via input ports. For example, the battery ECU 52 inputs the voltage Vb from the voltage sensor 51v attached between the terminals of the battery 50 and the current Ib from the current sensor 51i attached to the output terminal of the battery 50. The battery ECU 52 calculates the state of charge SOC of the battery 50 based on the integrated value of the current Ib of the battery 50. The battery ECU 52 communicates with the HV ECU 70.

[0031] The connector 55 is configured to be connectable to the connector 101 of the repeater 100. The repeater 100 includes the connector 101 and an outlet 103 connected to the connector 101 via the power line 102. The outlet 103 enables connection of external devices that are not components of the vehicle. Examples of the external devices include, for example, electrical appliances and portable terminals.

[0032] The external power supply device 58 is connected to the inverters 41 and 42 and the battery 50 via the power line 54 and is also connected to the connector 55 via the power line 57. The external power supply device 58 converts the DC power on the power line 54 into AC power of a predetermined voltage and supplies it to the connector 55 side. Specifically, the external power supply device 58 supplies AC power of a predetermined voltage to an external device connected to the connector 55 via the repeater 100. Hereinafter, supplying power from the vehicle to the outside of the vehicle (external device) is referred to as "external power supply".

[0033] The navigation device 60 includes a main body 61 with a built-in control unit, a GPS antenna 62, and a display 63. The control unit of the main body 61 has a microcomputer, a storage medium (such as a hard disk or SSD), an input / output port, and a communication port. Map information and the like are stored in the storage medium. The map information includes service information (such as sightseeing information and parking lots), road information for each driving section (such as between traffic lights and intersections), and the like. The road information includes distance information, width information, number of lanes information, regional information (urban areas and suburbs), type information (general roads and highways), gradient information, legal speed, number of traffic lights, and the like. The GPS antenna 62 receives information regarding the current location of the own vehicle. The display 63 is configured as a touch panel type display, and displays various information such as map information, the current location of the own vehicle, and the planned driving route from the current location of the own vehicle to the destination, and enables the user to input various instructions. When the user operates the display 63 to set a destination, the main body 61 of the navigation device 60 sets a planned driving route from the current location of the own vehicle to the destination based on the map information, the current location of the own vehicle, and the destination, and displays the set planned driving route on the display 63 to provide route guidance. The navigation device 60 communicates with the HVECU 70.

[0034] The HVECU 70 includes a microcomputer, similar to the engine ECU 24. The HVECU 70 inputs signals from various sensors via the input ports. For example, the HVECU 70 inputs the fuel quantity Qf from the fuel sensor 25a attached to the fuel tank 25. The HVECU 70 also inputs the signal from the power switch 80, the shift position SP from the shift position sensor 82 that detects the operating position of the shift lever 81, the accelerator opening Acc from the accelerator pedal position sensor 84 that detects the depression amount of the accelerator pedal 83, the brake pedal position BP from the brake pedal position sensor 86 that detects the depression amount of the brake pedal 85, and the vehicle speed V from the vehicle speed sensor 87. The HVECU 70 also inputs the captured image inside the vehicle from the in-vehicle camera 88, the captured image outside the vehicle (around the vehicle) from the out-vehicle camera 89, and the signal from the power supply mode setting unit 90 for the user to set the power supply mode of external power supply. The HVECU 70 outputs various control signals via the output ports. For example, the HVECU 70 outputs a control signal to the external power supply device 58 and a control signal to the display unit 92 attached to the instrument panel. As described above, the HVECU 70 communicates with the engine ECU 24, the motor ECU 40, the battery ECU 52, and the navigation device 60.

[0035] In the hybrid vehicle 20 of the embodiment, as the shift position SP, there are a parking position (P position), a reverse position (R position), a neutral position (N position), a drive position (D position), etc. When the shift position SP is the P position, the drive wheels 39a, 39b are locked by the parking lock device.

[0036] The hybrid vehicle 20 of the embodiment configured in this way switches between hybrid driving that travels with the operation of the engine 22 and electric driving that travels with the operation stop of the engine 22 by the cooperative control of the HVECU 70, the engine ECU 24, and the motor ECU 40.

[0037] Next, the operation of the hybrid vehicle 20 according to the embodiment will be described. In particular, the operation of the vehicle when the user desires external power supply while the vehicle is parked, such as in an emergency or during leisure, will be described. FIG. 2 is a flowchart showing an example of a processing routine executed by the HVECU 70. This routine is executed when the user desires external power supply while the vehicle is parked. In the embodiment, when the vehicle is in the system stop state and the user presses the power switch 80 twice without stepping on the brake pedal 85, the HVECU 70 determines that the user desires external power supply and executes the processing routine of FIG. 2.

[0038] In the processing routine of FIG. 2, the HVECU 70 first displays the first, second, and third power supply modes on the display unit 92 (step S100). Here, in any of the first, second, and third power supply modes, when the state of charge SOC of the battery 50 is equal to or higher than the threshold value Sref, the engine 22 and the motor MG1 are stopped, and when the state of charge SOC of the battery 50 is less than the threshold value Sref, the engine 22 is operated and the motor MG1 is used for power generation in a predetermined power supply mode. In this predetermined power supply mode, when the state of charge SOC of the battery 50 is equal to or higher than the threshold value Sref, external power supply is performed using only the power from the battery 50, and when the state of charge SOC of the battery 50 is less than the threshold value Sref, external power supply is performed using the generated power of the motor MG1 (and the power from the battery 50). The first power supply mode is a noise suppression priority mode that prioritizes noise suppression, the second power supply mode is a power supply performance priority mode that prioritizes power supply performance, and the third power supply mode is a fuel efficiency priority mode that prioritizes fuel efficiency. In the embodiment, in the process of step S100, the HVECU 70 displays on the display unit 92 the differences between the power supply modes so that the user can recognize them, such as "noise suppression priority mode", "power supply performance priority mode", and "fuel efficiency priority mode".

[0039] Subsequently, the HVECU 70 waits for the user to select one of the first, second, and third power supply modes (step S110). Since the first, second, and third power supply modes are displayed on the display unit 92, the user may operate the power supply mode setting unit 90 to select one of the first, second, and third power supply modes. As a result, the user can more easily set the power supply mode.

[0040] When the user selects one of the first, second, and third power supply modes, the HVECU 70 sets the target power Pe* and the target rotational speed Ne* of the engine 22 based on the power supply mode selected by the user (steps S120 to S140), starts the external power supply control using the set target power Pe* and target rotational speed Ne* (step S150), and ends the processing routine.

[0041] Hereinafter, the setting processes of the target power Pe* and the target rotational speed Ne* of the engine 22 (steps S120 to S140) and the external power supply control (step S150) will be described in order. When the power supply mode selected by the user is the first power supply mode (noise suppression priority mode), the HVECU 70 sets a predetermined power Pe1 for the target power Pe* and a predetermined rotational speed Ne1 for the target rotational speed Ne* (step S120). When the power supply mode selected by the user is the second power supply mode (power supply performance priority mode), the HVECU 70 sets a predetermined power Pe2 for the target power Pe* and a predetermined rotational speed Ne2 for the target rotational speed Ne* (step S130). When the power supply mode selected by the user is the third power supply mode (fuel efficiency priority mode), the HVECU 70 sets a predetermined power Pe3 for the target power Pe* and a predetermined rotational speed Ne3 for the target rotational speed Ne* (step S140).

[0042] FIG. 3 is an explanatory diagram showing an example of target operating points A, B, and C in the first, second, and third power supply modes. The target operating points A, B, and C are defined by a target rotational speed Ne* and a target power Pe*, or by a target torque Te* obtained by dividing the target rotational speed Ne* and the target power Pe* by the target rotational speed Ne*. FIG. 3 also shows an example of an operation line Le (see solid line), a boundary line Lm of the stuffy noise region (see dashed line), an equal power line (see one-dot chain line), and an equivalent efficiency line (see two-dot chain line). The operation line Le is a line for efficiently operating the engine 22 during hybrid driving or the like. The boundary line Lm of the stuffy noise region is a boundary line on the high rotational speed and low torque side of the stuffy noise region. The equal power line is a line where the power Pe of the engine 22 is constant. The equivalent efficiency line is a line where the efficiency of the engine 22 is constant.

[0043] As can be seen from FIG. 3, the predetermined power Pe1 is defined as a relatively small power. In the embodiment, the predetermined power Pe1 is defined as a power smaller than any of the powers at each of the plurality of intersections of the operation line Le and the boundary line Lm of the stuffy noise region in order to suppress the stuffy noise as noise. The predetermined rotational speed Ne1 is defined as the rotational speed at the intersection of the equal power line (not shown) of the predetermined power Pe1 and the operation line Le.

[0044] The predetermined power Pe2 is defined as a power larger than the predetermined powers Pe1 and Pe3. The predetermined rotational speed Ne2 is defined as the rotational speed that avoids the stuffy noise region from the operation line Le. In the embodiment, the predetermined rotational speed Ne2 is defined as the rotational speed at the intersection of the equal power line (not shown) of the predetermined power Pe2 and the boundary line Lm of the stuffy noise region.

[0045] The specified power Pe3 is defined as a power that is greater than the specified power Pe1 and less than the specified power Pe2. The specified rotation speed Ne3 is defined as a rotation speed at which the engine 22 can be operated more efficiently than in the first and second power supply modes. In the embodiment, the specified rotation speed Ne3 is defined as the rotation at which the efficiency η is the highest among the constant power lines (not shown) of the specified power Pe3.

[0046] Next, external power supply control will be described. The HVECU 70 performs external power supply control when the connector 101 of the repeater 100 is connected to the connector 55 of the hybrid vehicle 20 and an external device is connected to the outlet 103 of the repeater 100. As described above, in all of the first, second, and third power supply modes, when the state of charge SOC of the battery 50 is equal to or higher than the threshold value Sref, the engine 22 and the motor MG1 are stopped, and when the state of charge SOC of the battery 50 is less than the threshold value Sref, the engine 22 is operated and the motor MG1 generates electricity in a predetermined power supply mode. Therefore, in external power supply control, the HVECU 70 controls the external power supply device 58 so that power is supplied from the power line 54 side to the connector 55 side regardless of the state of charge SOC of the battery 50. Also, in external power supply control, through the coordinated control of the HVECU 70, the engine ECU 24, and the motor ECU 40, when the state of charge SOC of the battery 50 is equal to or higher than the threshold value Sref, the engine 22 and the motor MG1 are stopped, and when the state of charge SOC of the battery 50 is less than the threshold value Sref, the engine 22 is operated based on the target power Pe* and the target rotational speed Ne*, and the engine 22 and the inverter 41 are controlled so that the motor MG1 generates electricity using the power from the engine 22. Through such control, during external power supply, when the state of charge SOC of the battery 50 is equal to or higher than the threshold value Sref, the state of charge SOC of the battery 50 decreases, and when the state of charge SOC of the battery 50 is less than the threshold value Sref, the state of charge SOC of the battery 50 increases or decreases according to the relationship between the generated power of the motor MG1 in the power supply mode selected by the user and the power consumption of the external device. Note that the HVECU 70 terminates the external power supply control when the connection between the outlet 103 of the repeater 100 and the external device is disconnected, or when the connection between the connector 55 of the hybrid vehicle 20 and the connector 101 of the repeater 100 is disconnected, etc.

[0047] In the hybrid vehicle 20 of the embodiment described above, when the user desires external power supply, the display unit 92 displays the first, second, and third power supply modes. When the user selects any one of the first, second, and third power supply modes, external power supply is performed in the power supply mode selected by the user. Therefore, since the user only needs to select any one of the first, second, and third power supply modes, the user can more easily set the power supply mode.

[0048] In the above-described embodiment, the predetermined power supply mode is such that when the state of charge SOC of the battery 50 is equal to or higher than the threshold value Sref, the engine 22 and the motor MG1 are stopped, and when the state of charge SOC of the battery 50 is less than the threshold value Sref, the engine 22 is operated and the motor MG1 generates electricity. However, the present invention is not limited to this. For example, the predetermined power supply mode may be a power supply mode in which the engine 22 is operated and the motor MG1 generates electricity regardless of the state of charge SOC of the battery 50.

[0049] In the above-described embodiment, the plurality of power supply modes include the first, second, and third power supply modes as the predetermined power supply mode. However, the present invention is not limited to this. For example, the plurality of power supply modes may not include any one of the first, second, and third power supply modes as the predetermined power supply mode. Further, the plurality of power supply modes may further include a second predetermined power supply mode in addition to the predetermined power supply mode. The second predetermined power supply mode is a power supply mode in which the engine 22 and the motor MG1 are stopped regardless of the state of charge SOC of the battery 50.

[0050] In the above-described embodiments, the HVECU 70 is configured to set the target power Pe* and the target rotational speed Ne* of the engine 22 based on the power supply mode selected by the user among the first, second, and third power supply modes. However, the present invention is not limited to this. For example, the HVECU 70 may set the target rotational speed Ne* and the target torque Te* of the engine 22 based on the power supply mode selected by the user. Further, when the power supply mode selected by the user is the first power supply mode or the second power supply mode, the HVECU 70 may set only the target power Pe* of the engine 22. In this case, the engine 22 can be operated at an arbitrary rotational speed Ne.

[0051] In the above-described embodiments, the HVECU 70 is configured to display the first, second, and third power supply modes on the display unit 92, and the user is configured to operate the power supply mode setting unit 90 to select any one of the first, second, and third power supply modes. However, the present invention is not limited to this. For example, the main body 61 of the navigation device 60 may display the first, second, and third power supply modes on the display 63, and the user may operate the display 63 to select any one of the first, second, and third power supply modes.

[0052] In the above-described embodiments, the HVECU 70 is configured to display the first, second, and third power supply modes on the display unit 92. However, the present invention is not limited to this. For example, in addition to displaying the first, second, and third power supply modes on the display unit 92, the HVECU 70 may notify the user of the first, second, and third power supply modes by voice.

[0053] In the above-described embodiments, the HVECU 70 is configured to execute the processing routine of FIG. 2. However, the present invention is not limited to this. For example, the HVECU 70 may execute the processing routine of FIG. 4. The processing routine of FIG. 4 is different from the processing routine of FIG. 2 in that the processing of steps S100 and S110 is replaced with the processing of steps S200 to S260. Therefore, for the same processing as the processing routine of FIG. 2 in the processing routine of FIG. 4, the same step numbers are assigned, and detailed description thereof is omitted.

[0054] In the processing routine of FIG. 4, the HVECU 70 determines whether the current time is within a predetermined time period (step S200). Here, the predetermined time period is defined as a time period during which noise suppression is required, for example, the nighttime time period. When the HVECU 70 determines that the current time is within the predetermined time period, it sets the first power supply mode (noise suppression priority mode) as the recommended power supply mode (step S210).

[0055] When the HVECU 70 determines that the current time is not within the predetermined time period, it determines whether the fuel quantity Qf in the fuel tank 25 is equal to or greater than a threshold value Qfref (step S220). Here, the threshold value Qfref is used to determine whether there is a certain amount of fuel remaining in the fuel tank 25. When the HVECU 70 determines that the fuel quantity Qf in the fuel tank 25 is equal to or greater than the threshold value Qfref, it sets the second power supply mode (power supply performance priority mode) as the recommended power supply mode (step S230). On the other hand, when the HVECU 70 determines that the fuel quantity Qf in the fuel tank 25 is less than the threshold value Qfref, it sets the third power supply mode (fuel consumption priority mode) as the recommended power supply mode (step S240). Through the processing of steps S200 to S240, the recommended power supply mode can be set more appropriately based on whether the current time is within the predetermined time period and whether the fuel quantity Qf in the fuel tank 25 is equal to or greater than the threshold value Qfref.

[0056] When the HVECU 70 sets the recommended power supply mode in steps S210 to S240, it displays the first, second, and third power supply modes on the display unit 92 in different manners for the recommended power supply mode and other power supply modes (step S250). Similar to step S110, it waits for the user to select any one of the first, second, and third power supply modes (step S260). Even in this case, since the user only needs to select any one of the first, second, and third power supply modes, the user can set the power supply mode more easily. In the process of step S250, for example, the HVECU 70 displays the recommended power supply mode on the display unit 92 in a way that attracts the user's attention, such as making it bold or larger than other power supply modes. As a result, the user can more easily recognize the recommended power supply mode and select it. Then, when the user selects any one of the first, second, and third power supply modes, the HVECU 70 proceeds to one of steps S120 to S140 based on the power supply mode selected by the user.

[0057] Instead of the processing routine in FIG. 4, the HVECU 70 may execute the processing routine in FIG. 5. The processing routine in FIG. 5 is different from the processing routine in FIG. 4 in that the processing of step S202 is added. Therefore, for the same processing in the processing routine in FIG. 5 as that in the processing routine in FIG. 4, the same step numbers are assigned, and detailed descriptions are omitted.

[0058] In the processing routine of FIG. 5, when the HVECU 70 determines in step S200 that the current time is within a predetermined time zone, it determines whether the current location of the vehicle is within a residential area (step S202). When the HVECU 70 determines that the current location of the vehicle is within a residential area, it sets the first power supply mode (noise suppression priority mode) in the recommended power supply mode (step S210). On the other hand, when the HVECU 70 determines that the current location of the vehicle is outside the residential area, it sets the second power supply mode (power supply performance priority mode) or the third power supply mode (fuel efficiency priority mode) in the recommended power supply mode based on the fuel quantity Qf of the fuel tank 25 (steps S220 to S240). Thereby, the HVECU 70 can more appropriately set the recommended power supply mode based on whether the current location of the vehicle is within a residential area.

[0059] Here, the determination process of whether the current location of the vehicle is within a residential area will be described. The HVECU 70 determines whether the current location of the vehicle is within a residential area, for example, by the sub-processing routine of FIG. 6. In the sub-processing routine of FIG. 6, the HVECU 70 determines whether the current location of the vehicle is within an urban area (step S300). This process is performed, for example, as follows. The HVECU 70 transmits a determination instruction to the navigation device 60. The navigation device 60 that has received the determination instruction determines whether the current location of the vehicle is within an urban area using the current location of the vehicle and the map information, and transmits the determination result to the HVECU 70. The HVECU 70 receives the determination result. When the HVECU 70 determines that the current location of the vehicle is within an urban area, it determines that the current location of the vehicle is within a residential area (step S320) and ends the sub-processing routine.

[0060] When the HVECU 70 determines that the current location of the vehicle is not in an urban area, it determines whether the number of houses Nh around the vehicle is equal to or greater than a threshold value Nhref (step S310). Here, the number of houses Nh around the vehicle is the number of houses detected by image analysis of the captured image of the outside vehicle camera 89. The threshold value Nhref is used to determine whether the current location of the vehicle can be regarded as being within a residential area. When the HVECU 70 determines that the number of houses Nh around the vehicle is equal to or greater than the threshold value Nhref, it determines that the current location of the vehicle is within a residential area (step S320) and ends the sub-processing routine. On the other hand, when the HVECU 70 determines that the number of houses Nh around the vehicle is less than the threshold value Nhref, it determines that the current location of the vehicle is outside the residential area (step S330) and ends the sub-processing routine. Through such a sub-processing routine, the HVECU 70 can more appropriately determine whether the current location of the vehicle is within a residential area based on whether the current location of the vehicle is in an urban area and whether the number of houses Nh around the vehicle is equal to or greater than the threshold value Nhref.

[0061] In the processing routines of FIGS. 4 and 5, the HVECU 70 is assumed to display the first, second, and third power supply modes on the display unit 92 in different manners between the recommended power supply mode and the other power supply modes. However, the HVECU 70 may display only the recommended power supply mode among the first, second, and third power supply modes on the display unit 92. In this case, when the user permits the recommended power supply mode, the HVECU 70 may proceed to any one of steps S120 to S140 based on the recommended power supply mode. Further, when the user does not permit the recommended power supply mode, the HVECU 70 may proceed to any one of steps S120 to S140 based on the power supply mode at the time of the previous external power supply or based on the initial setting power supply mode. As the initial setting power supply mode, for example, the third power supply mode (fuel consumption priority power supply mode) is used.

[0062] Instead of the processing routines in FIGS. 2, 4, and 5, the HVECU 70 may execute the processing routine in FIG. 7. In the processing routine of FIG. 7, compared with the processing routine of FIG. 4, before the processing of step S200, the processing of steps S100 and S110 of the processing routine of FIG. 2 and the processing of a new step S112 are added.

[0063] In the processing routine of FIG. 7, the HVECU 70 displays the first, second, and third power supply modes on the display unit 92 in step S100. When it is determined in step S110 that the user has selected any one of the first, second, and third power supply modes, the HVECU 70 proceeds to any one of steps S120 to S140 based on the power supply mode selected by the user.

[0064] When it is determined in step S110 that the user has not selected any of the first, second, and third power supply modes, the HVECU 70 determines whether a predetermined time T1 has elapsed since the display of the first, second, and third power supply modes on the display unit 92 was started (step S112). When it is determined that the predetermined time T1 has not elapsed since the display of the first, second, and third power supply modes on the display unit 92 was started, the HVECU 70 returns to step S110. On the other hand, when it is determined that the predetermined time T1 has elapsed since the display of the first, second, and third power supply modes on the display unit 92 was started, the HVECU 70 proceeds to step S200. That is, when the user does not select any of the first, second, and third power supply modes within the predetermined time T1 since the display of the first, second, and third power supply modes on the display unit 92 was started, the HVECU 70 may set the recommended power supply mode and display the first, second, and third power supply modes on the display unit 92 in different manners between the recommended power supply mode and the other power supply modes.

[0065] Note that the processing of step S202 of the processing routine of FIG. 5 may be added to the processing routine of FIG. 7.

[0066] In the above-described embodiment, in the hybrid vehicle 20, the first, second, and third power supply modes are displayed on the display unit 92 and the display 63, and the user operates the power supply mode setting unit 90 or the display 93 to select any one of the first, second, and third power supply modes. In this case, it can be considered that the hybrid vehicle 20 (HVECU 70) corresponds to the "power supply mode setting system" of the present disclosure. However, it is not limited to this. FIG. 8 is a schematic configuration diagram of an external power supply system 10 according to a modification. As shown in the figure, the external power supply system 10 includes the same hybrid vehicle 20 as in FIG. 1 and a portable terminal 120. The portable terminal 120 is configured as a smartphone or a tablet terminal, and includes a computer, a display 121, and a communication device. The display 121 is configured as a touch panel type display. An application software, a power supply mode setting application 130, for the user to set the power supply mode of the external power supply is installed in the portable terminal 120. The portable terminal 120 communicates with the hybrid vehicle 20 via a communication network such as the Internet or a telephone line by the processing of the power supply mode setting application 130.

[0067] In the external power supply system 10, when the user desires external power supply, instead of the processes of steps S100 and S110 in the processing routine of FIG. 2, the following processes may be performed. The portable terminal 120 displays the first, second, and third power supply modes on the display 121 by the processing of the power supply mode setting application 130. Subsequently, when the user operates the display 121 to select any one of the first, second, and third power supply modes, the portable terminal 120 transmits the power supply mode selected by the user to the HVECU 70, and the HVECU 70 that has received this proceeds to any one of steps S120 to S140 based on the power supply mode selected by the user. That is, in the portable terminal 120, the first, second, and third power supply modes may be displayed on the display 121, and the user may operate the display 121 to select any one of the first, second, and third power supply modes. In this case, it can be considered that the portable terminal 120 (power supply mode setting application 130) corresponds to the "power supply mode setting system" of the present disclosure.

[0068] Although the processing of steps S100 and S110 in the processing routine of FIG. 2 has been replaced from the processing of the hybrid vehicle 20 to the processing of the mobile terminal 120, at least a part of the processing of steps S200 to S260 in FIGS. 4 and 5, at least a part of the processing of steps S100 to S260 in FIG. 7, etc. may similarly be replaced from the processing of the hybrid vehicle 20 to the processing of the mobile terminal 120.

[0069] In the above-described embodiment, the external power supply is assumed to supply power from the hybrid vehicle 20 to an external device, but it is not limited thereto. For example, the external power supply may supply power from the hybrid vehicle 20 to a house or the like.

[0070] In the above-described embodiment, the battery 50 is used as the power storage device in the hybrid vehicle 20, but it is not limited thereto. For example, a capacitor may be used as the power storage device in the hybrid vehicle 20.

[0071] In the above-described embodiment, the hybrid vehicle 20 is assumed to include the engine ECU 24, the motor ECU 40, the battery ECU 52, and the HV ECU 70, but it is not limited thereto. For example, at least two of the engine ECU 24, the motor ECU 40, the battery ECU 52, and the HV ECU 70 in the hybrid vehicle 20 may be integrally configured.

[0072] In the above-described embodiment, the hybrid vehicle 20 is assumed to have the connector 55 connected to the external power supply device 58 via the power line 57, but it is not limited thereto. For example, as shown in the hybrid vehicle 20B of the modified example in FIG. 9, the connector 55 and the outlet 56 may be connected to the external power supply device 58 via the power line 57. The hybrid vehicle 20B may not include the connector 55.

[0073] In the above-described embodiment, the hybrid vehicle 20 is provided with the engine 22, the planetary gear 30, the motors MG1 and MG2, the inverters 41 and 42, the battery 50, and the external power supply device 58, but the present invention is not limited thereto. For example, as shown in the hybrid vehicle 20C of the modified example in FIG. 10, it may be provided with the engine 22, the clutch CL, the motor MG, the inverter IV, the battery 50, the stepped transmission TM, and the external power supply device 58. In the hybrid vehicle 20C, the engine 22 is connected to the drive wheels 39a and 39b via the clutch K0, the motor MG, the stepped transmission TM, and the drive shaft 37, and the inverter INV that drives the motor MG, the battery 50, and the external power supply device 58 are connected to the power line 54.

[0074] In the above-described embodiment, the form of the hybrid vehicle 20 and the form of the external power supply system 10 including the hybrid vehicle 20 and the portable terminal 120 (power supply mode setting application 130) have been described, but the present invention is not limited thereto. For example, it may be in the form of a control method for the hybrid vehicle 20 or in the form of a power supply mode setting method.

[0075] The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the hybrid vehicle 20 corresponds to the "hybrid vehicle", the engine 22 corresponds to the "engine", the motor MG1 corresponds to the "generator", the battery 50 corresponds to the "power storage device", and the HVECU 70, the engine ECU 24, and the motor ECU 40 correspond to the "control device". The hybrid vehicle 20 (HVECU 70) and the portable terminal 120 (power supply mode setting application 130) correspond to the "power supply mode setting system".

[0076] Note that the correspondence between the main elements of the embodiments and the main elements of the invention described in the column of means for solving the problems is an example for specifically explaining the mode for carrying out the invention described in the column of means for solving the problems in the embodiments. Therefore, it does not limit the elements of the invention described in the column of means for solving the problems. That is, the interpretation of the invention described in the column of means for solving the problems should be made based on the description in that column, and the embodiments are merely specific examples of the invention described in the column of means for solving the problems.

[0077] As described above, the embodiments for carrying out the present disclosure have been described using the embodiments. However, the present disclosure is not limited to such embodiments, and it goes without saying that the present disclosure can be implemented in various forms without departing from the gist of the present disclosure.

Industrial Applicability

[0078] The present disclosure can be used in the manufacturing industry of hybrid vehicles and the like.

Explanation of Reference Numerals

[0079] 10 External power supply system, 20, 20B, 20C Hybrid vehicle, 22 Engine, 23 Crankshaft, 23a Crank position sensor, 24 Engine ECU, 25 Fuel tank, 25a Fuel sensor, 30 Planetary gear, 37 Driveshaft, 38 Differential gear, 39a, 39b Drive wheels, 40 Motor ECU, 41, 42, IV Inverter, 43, 44 Rotation position sensors, 50 Battery, 51i Current sensor, 51v Voltage sensor, 52 Battery ECU, 54 Power line, 55 Connector, 56 Outlet, 57 Power line, 58 External power supply device, 60 Navigation device, 61 Body, 62 GPS antenna, 63 Display, 70 HVECU, 80 Power switch, 81 Shift lever, 82 Shift position sensor, 83 Accelerator pedal, 84 Accelerator pedal position sensor, 85 Brake pedal, 86 Brake pedal position sensor, 87 Vehicle speed sensor, 88 In-vehicle camera, 89 Out-of-vehicle camera, 90 Power supply mode setting unit, 92 Display unit, 100 Repeater, 101 Connector, 102 Power line, 103 Outlet, 120 Mobile terminal, 121 Display, 130 Power supply mode setting app, CL Clutch, MG, MG1, MG2 Motors, TM Step transmission.

Claims

1. A hybrid vehicle comprising: an engine that outputs power using fuel from a fuel tank; a generator that generates electricity using the power from the engine; a power storage device connected to a power line together with the generator; and a control device, wherein when the user desires external power supply for supplying power from the vehicle to the outside of the vehicle, the control device presents the user with a plurality of power supply modes having different power supply characteristics, and when the user selects any one of the plurality of power supply modes, the control device performs the external power supply in the power supply mode selected by the user. Hybrid vehicle.

2. The hybrid vehicle according to Claim 1, wherein the plurality of power supply modes include at least two of a first power supply mode that prioritizes noise suppression, a second power supply mode that prioritizes power supply performance, and a third power supply mode that prioritizes fuel efficiency, as a predetermined power supply mode for operating the engine and generating electricity by the generator. Hybrid vehicle.

3. The hybrid vehicle according to Claim 2, wherein the predetermined power supply mode is a mode in which the engine is operated and the generator generates electricity when at least the power storage ratio of the power storage device is less than a predetermined ratio during the external power supply. Hybrid vehicle.

4. The hybrid vehicle according to Claim 1, wherein the control device presents the user with a recommended power supply mode recommended based on the current environment among the plurality of power supply modes. Hybrid vehicle.

5. The hybrid vehicle according to Claim 4, wherein the control device presents the user in different manners for the recommended power supply mode and other power supply modes. Hybrid vehicle.

6. The hybrid vehicle according to Claim 4, wherein the plurality of power supply modes include a first power supply mode that prioritizes noise suppression, a second power supply mode that prioritizes power supply performance, and a third power supply mode that prioritizes fuel efficiency, as a predetermined power supply mode for operating the engine and generating electricity by the generator when at least the power storage ratio of the power storage device is less than a predetermined ratio during the external power supply, and the control device, when the current time is within a predetermined time period, sets the first power supply mode as the recommended power supply mode, when the current time is not within the predetermined time period and the fuel amount in the fuel tank is equal to or more than a predetermined amount, sets the second power supply mode as the recommended power supply mode. When the current time is not within the predetermined time period and the fuel amount is less than the predetermined amount, set the third power supply mode to the recommended power supply mode. Hybrid vehicle.

7. The hybrid vehicle according to claim 6, wherein the control device when the current time is within the predetermined time period when the current location of the vehicle is within a residential area, set the first power supply mode to the recommended power supply mode; when the current location of the vehicle is outside the residential area, set the second power supply mode or the third power supply mode to the recommended power supply mode based on the fuel amount. Hybrid vehicle.

8. The hybrid vehicle according to claim 2 or 7, wherein the first power supply mode is a mode in which the engine is operated to output a first power; the second power supply mode is a mode in which the engine is operated to output a second power greater than the first power; the third power supply mode is a mode in which the engine is operated at an operating point more efficient than the first and second power supply modes. Hybrid vehicle.

9. A control method for a hybrid vehicle, comprising an engine that outputs power using fuel from a fuel tank, a generator that generates electricity using the power from the engine, and a power storage device connected to a power line together with the generator, wherein when a user desires external power supply from the vehicle to the outside of the vehicle, a plurality of power supply modes with different power supply characteristics are presented to the user, and when the user selects any one of the plurality of power supply modes, the external power supply is performed in the power supply mode selected by the user. Control method for a hybrid vehicle.

10. A power supply mode setting system for use in setting a power supply mode when a user desires external power supply from a vehicle to the outside of the vehicle for a hybrid vehicle including an engine that outputs power using fuel from a fuel tank, a generator that generates electricity using the power from the engine, a power storage device connected to a power line together with the generator, and a control device, wherein a plurality of the power supply modes with different power supply characteristics are presented to the user, and when the user selects any one of the plurality of power supply modes, the vehicle is caused to perform the external power supply in the power supply mode selected by the user. Power supply mode setting system.

11. A power feeding mode setting method used for setting a power feeding mode when a user desires external power feeding for feeding power from a vehicle to the outside of the vehicle, for a hybrid vehicle including an engine that outputs power using fuel from a fuel tank, a generator that generates power using the power from the engine, a power storage device connected to a power line together with the generator, and a control device, presenting a plurality of the power feeding modes having different power feeding characteristics to the user, and when the user selects any one of the plurality of power feeding modes, causing the vehicle to perform the external power feeding in the power feeding mode selected by the user, Power feeding mode setting method.

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