Hybrid vehicle, method for controlling hybrid vehicle, power supply mode setting system, and power supply mode setting method

Abstract

The invention provides a hybrid vehicle, a control method of the hybrid vehicle, a power supply mode setting system, and a power supply mode setting method. The present disclosure provides a hybrid vehicle in which a user can more easily set a power supply mode in a case where the user desires external power supply. A hybrid vehicle is provided with: an engine that outputs power using fuel from a fuel tank; a generator that generates electricity using power from the engine; a power storage device connected to the power line together with the generator; and a control device. When a user desires external power supply from a vehicle to an external device, the control device presents a plurality of power supply modes having mutually different power supply characteristics to the user, and when the user selects any one of the plurality of power supply modes, the control device performs external power supply in the power supply mode selected by the user.

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 an electric device, when discharging from the vehicle to the electric device, a technique has been proposed to make the power discharged from the vehicle per unit time become a discharge power set value set by a user (for example, refer to Patent Document 1).

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2019-97334 Summary of the Invention

[0006] In the above system, in the case of external power supply where the user desires to supply power from the vehicle to the outside of the vehicle, there is a possibility that it is difficult for the user to know how to set the discharge power set value. Therefore, it is required that the user can more easily set the power supply mode when the user desires external power supply.

[0007] The main object of 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 is that the user can more easily set the power supply mode when the user desires external power supply.

[0008] 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 adopt the following means to achieve the above main object.

[0009] [1] The hybrid vehicle of the present disclosure includes:

[0011] 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 that is connected to a power line together with the generator; and a control device, wherein,

[0012] When the user desires external power supply from the vehicle to the outside of the vehicle, the control device presents a plurality of 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, the external power supply is performed in the power supply mode selected by the user.

[0013] In the hybrid vehicle of the present disclosure, in the case of external power supply where the user desires to supply 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, the user only needs to select any one of the plurality of power supply modes, so the user can more easily set the power supply mode. Here, "external power supply" can be an example of supplying power from the vehicle to an external machine or an example of supplying power from the vehicle to a house or the like. An "external machine" is a machine that is not a component of the vehicle, and examples thereof include household appliances and portable terminals.

[0014] [2] In the above hybrid vehicle (the hybrid vehicle described in [1]), among the plurality of power supply modes, as a predetermined power supply mode for operating the engine and generating power by the generator, it may include at least two of a first power supply mode that preferentially suppresses noise, a second power supply mode that preferentially has power supply performance, and a third power supply mode that preferentially has a fuel consumption rate.

[0015] [3] In the above hybrid vehicle (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 power at least when the state of charge ratio of the power storage device is less than a predetermined ratio during the external power supply.

[0016] [4] In the above hybrid vehicle (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 according to the current environment among the plurality of power supply modes. Thus, the hybrid vehicle can present to the user a recommended power supply mode based on the current environment.

[0017] [5] In the above hybrid vehicle (the hybrid vehicle described in [4]), the control device may present to the user in different ways in the recommended power supply mode and power supply modes other than the recommended power supply mode. Thus, the user can easily identify the recommended power supply mode and easily select the recommended power supply mode.

[0018] [6]In the above hybrid vehicle (the hybrid vehicle described in [4] or [5]), among the multiple power supply modes, as a predetermined power supply mode for operating the engine and generating electricity by the generator at least when the power storage ratio of the power storage device is less than a predetermined ratio during external power supply, it includes a first power supply mode that preferentially suppresses noise, a second power supply mode that prioritizes power supply performance, and a third power supply mode that prioritizes fuel consumption rate. When the current time is within a predetermined time period, the control device 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 quantity in the fuel tank is equal to or more than a predetermined quantity, the control device 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 quantity is less than the predetermined quantity, the control device sets the third power supply mode as the recommended power supply mode. Thus, the hybrid vehicle can set the recommended power supply mode according to whether the current time is within the predetermined time period and whether the fuel quantity in the fuel tank is equal to or more than the predetermined quantity.

[0019] [7]In the above hybrid vehicle (the hybrid vehicle described in [6]), when the current time is within the predetermined time period and the current location of the vehicle is within a residential area, the control device sets the first power supply mode as the recommended power supply mode. When the current location of the vehicle is outside the residential area, according to the fuel quantity, the control device sets the second power supply mode or the third power supply mode as the recommended power supply mode. Thus, the hybrid vehicle can set the recommended power supply mode according to whether the current location of the vehicle is within a residential area.

[0020] [8]In the above hybrid vehicle (any one of the hybrid vehicles described in [2], [6], and [7]), the first power supply mode is a mode in which the engine operates to output a first power, the second power supply mode is a mode in which the engine operates to output a second power greater than the first power, and the third power supply mode is a mode in which the engine operates at an operating point with better efficiency compared to the first and second power supply modes.

[0021] [9]The control method of the hybrid vehicle of the present disclosure is a control method of a hybrid vehicle, and the hybrid vehicle includes:

[0022] an engine that outputs power using fuel from a fuel tank; a generator that generates electricity using power from the engine; and a power storage device that is connected to a power line together with the generator, wherein

[0023] In the case of external power supply where the user expects to supply power from the vehicle to the outside of the vehicle, a plurality of power supply modes with different power supply characteristics are prompted 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.

[0024] In the control method of the hybrid vehicle according to the present disclosure, in the case of external power supply where the user expects to supply power from the vehicle to the outside of the vehicle, a plurality of power supply modes with different power supply characteristics are prompted 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. Therefore, the user only needs to select any one of the plurality of power supply modes, so the user can more easily set the power supply mode.

[0025]

[10] The power supply mode setting system of the present disclosure is a power supply mode setting system for a hybrid vehicle, and is used to set the power supply mode in the case of external power supply where the user expects to supply power from the vehicle to the outside of the vehicle. The hybrid vehicle 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 that is connected to a power line together with the generator; and a control device, wherein,

[0026] A plurality of the power supply modes with different power supply characteristics are prompted to the user, and when the user selects any one of the plurality of power supply modes, the vehicle performs the external power supply in the power supply mode selected by the user.

[0027] In the power supply mode setting system of the present disclosure, a plurality of power supply modes with different power supply characteristics are prompted to the user, and when the user selects any one of the plurality of power supply modes, the vehicle performs the external power supply in the power supply mode selected by the user. Therefore, the user only needs to select any one of the plurality of power supply modes, so the user can more easily set the power supply mode. Here, the "power supply mode setting system" can be either a control device mounted on a hybrid vehicle or a portable terminal capable of communicating with the hybrid vehicle, such as a smart phone, a tablet terminal, etc.

[0028]

[11] The power supply mode setting method of the present disclosure is a power supply mode setting method for a hybrid vehicle, and is used to set the power supply mode in the case of external power supply where the user expects to supply power from the vehicle to the outside of the vehicle. The hybrid vehicle 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 that is connected to a power line together with the generator; and a control device, wherein,

[0029] Prompt the user with multiple power supply modes having different power supply characteristics, and when the user selects any one of the multiple power supply modes, cause the vehicle to perform the external power supply in the power supply mode selected by the user.

[0030] In the power supply mode setting method of the present disclosure, multiple power supply modes having different power supply characteristics are prompted to the user, and when the user selects any one of the multiple power supply modes, the vehicle performs external power supply in the power supply mode selected by the user. Therefore, the user only needs to select any one of the multiple power supply modes, so the user can set the power supply mode more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a hybrid vehicle according to an embodiment of the present disclosure.

[0032] Figure 2 is a flowchart showing an example of a processing routine.

[0033] Figure 3 is an explanatory diagram showing an example of target operation points of the first, second, and third power supply modes.

[0034] Figure 4 is a flowchart showing an example of a processing routine of a modified example.

[0035] Figure 5 is a flowchart showing an example of a processing routine of a modified example.

[0036] Figure 6 is a flowchart showing an example of a sub-processing routine.

[0037] Figure 7 is a flowchart showing an example of a processing routine of a modified example.

[0038] Figure 8 is a schematic structural diagram of an external power supply system of a modified example.

[0039] Figure 9 is a schematic structural diagram of a hybrid vehicle of a modified example.

[0040] Figure 10 is a schematic structural diagram of a hybrid vehicle of a modified example. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] The embodiments for implementing the present disclosure will be described with reference to the drawings. Figure 1 is a schematic structural diagram of a hybrid vehicle 20 according to an embodiment of the present disclosure. As Figure 1As shown, the hybrid vehicle 20 of 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.

[0042] The engine 22 is configured as an internal combustion engine that outputs power using fuels such as gasoline and 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 operationally controlled by an engine electronic control unit (hereinafter referred to as "engine ECU") 24.

[0043] 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 port. 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 port. 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.

[0044] 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 a drive shaft 37 that is connected to drive wheels 39a and 39b via a differential gear 38. The carrier of the planetary gear 30 is connected to the crankshaft 23 of the engine 22.

[0045] The motors MG1 and MG2 are configured as synchronous generator motors, for example. 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 and 42 are configured as inverter circuits having a plurality of switching elements. The inverters 41 and 42 are connected to the battery 50 via a power line 54. The motors MG1 and MG2 are rotationally driven by a motor electronic control unit (hereinafter referred to as "motor ECU") 40 by switching the plurality of switching elements of the inverters 41 and 42.

[0046] The motor ECU 40, like the engine ECU 24, includes a microcomputer. The motor ECU 40 inputs signals from various sensors via input ports. For example, the motor ECU 40 inputs the rotational positions θm1 and θm2 from the rotational position sensors 43 and 44 that detect the rotational positions of the rotors of the motors MG1 and MG2. The motor ECU 40 outputs various control signals via output ports. For example, the motor ECU 40 outputs control signals to the inverters 41 and 42. The motor ECU 40 calculates the electrical angles θe1 and θe2 and the rotational speeds Nm1 and Nm2 of the motors MG1 and MG2 based on the rotational positions θm1 and θm2 of the rotors of the motors MG1 and MG2. The motor ECU 40 communicates with the HV ECU 70.

[0047] The battery 50 is configured as a lithium-ion secondary battery or a nickel-metal hydride secondary battery, for example. 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.

[0048] The battery ECU 52, like the engine ECU 24, includes a microcomputer. 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 installed between the terminals of the battery 50 and the current Ib from the current sensor 51i installed at the output terminal of the battery 50. The battery ECU 52 calculates the state of charge SOC of the battery 50 based on the cumulative value of the current Ib of the battery 50. The battery ECU 52 communicates with the HV ECU 70.

[0049] The connector 55 is configured to be able to connect to the connector 101 of the repeater 100. The repeater 100 includes the connector 101 and a socket 103 connected to the connector 101 via the power line 102. The socket 103 can connect to an external device that is not a component of the vehicle. As the external device, for example, household appliances, portable terminals, etc. can be cited.

[0050] 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 connected to the connector 55 via the power line 57. The external power supply device 58 converts the DC power of 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".

[0051] The navigation device 60 includes a main body 61 with a control unit built therein, 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, SSD, etc.), an input / output port, and a communication port. In the storage medium, map information and the like are stored. In the map information, service information (such as sightseeing information, parking lots, etc.), road information for each driving section (such as between traffic lights, between intersections, etc.) are included. In the road information, distance information, width information, number of lanes information, regional information (urban area, suburban area), category information (ordinary road, highway), slope information, legal speed, number of traffic lights, etc. are included. The GPS antenna 62 receives information related to the current location of the vehicle. The display 63 is configured as a touch panel type display, which displays various information such as map information, the current location of the vehicle, and the predetermined driving route from the current location of the vehicle to the destination, and the user can 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 predetermined driving route from the current location of the vehicle to the destination based on the map information, the current location of the vehicle, and the destination, and displays the set predetermined driving route on the display 63 for route guidance. The navigation device 60 communicates with the HVECU 70.

[0052] The HVECU 70, like the engine ECU 24, has a microcomputer. The HVECU 70 inputs signals from various sensors via an input port. For example, the HVECU 70 inputs the fuel quantity Qf from the fuel sensor 25a installed in the fuel tank 25. The HVECU 70 also inputs a signal from the power switch 80, the shift position SP from the shift position sensor 82 that detects the operation 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 photographed image inside the vehicle from the in-vehicle camera 88, the photographed image outside the vehicle (around the vehicle) from the out-vehicle camera 89, and a signal from the power supply mode setting unit 90 for the user to set the external power supply mode. The HVECU 70 outputs various control signals via an output port. 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 installed on 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.

[0053] In addition, 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 forward position (D position), and the like. Moreover, when the shift position SP is the P position, the drive wheels 39a and 39b are locked by the parking lock device.

[0054] The hybrid vehicle 20 of the embodiment configured in this way travels by switching between hybrid driving accompanied by the operation of the engine 22 and electric driving accompanied by the stoppage of the operation of the engine 22 through the coordinated control of the HVECU 70, the engine ECU 24, and the motor ECU 40.

[0055] Next, the operation of the hybrid vehicle 20 of the embodiment will be described. In particular, the operation of the vehicle in a situation where the user desires external power supply while the vehicle is stopped, such as in an emergency or during leisure, will be described. Figure 2 FIG. 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 stopped. In the embodiment, when the user presses the power switch 80 twice without depressing the brake pedal 85 while the vehicle is in the system stop state, the HVECU 70 determines that the user desires external power supply and executes Figure 2 the processing routine.

[0056] In Figure 2 the processing routine, the HVECU 70 initially displays the first, second, and third power supply modes on the display unit 92 (step S100). Here, the first, second, and third power supply modes are all predetermined power supply modes in which 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 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 only using 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 preferentially suppresses noise, 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 consumption rate priority mode that prioritizes fuel consumption rate. In the embodiment, in the process of step S100, the HVECU 70 is displayed on the display unit 92 in a manner that enables the user to identify the differences between the power supply modes, such as "noise suppression priority mode", "power supply performance priority mode", and "fuel consumption rate priority mode".

[0057] Next, the HVECU 70 waits for the user to select any one of the first, second, and third power supply modes (step S110). The first, second, and third power supply modes are displayed on the display unit 92, so the user can operate the power supply mode setting unit 90 to select any one of the first, second, and third power supply modes. Thus, the user can set the power supply mode more easily.

[0058] When the user selects any 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 according to the selected power supply mode (steps S120 to S140), and starts the external power supply control using the set target power Pe* and target rotational speed Ne* (step S150), and ends the processing routine.

[0059] Hereinafter, the setting processes (steps S120 to S140) of the target power Pe* and the target rotational speed Ne* of the engine 22 and the external power supply control (step S150) will be described in order. When the selected power supply mode 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 sets a predetermined rotational speed Ne1 for the target rotational speed Ne* (step S120). When the selected power supply mode 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 sets a predetermined rotational speed Ne2 for the target rotational speed Ne* (step S130). When the selected power supply mode by the user is the third power supply mode (fuel consumption rate priority mode), the HVECU 70 sets a predetermined power Pe3 for the target power Pe* and sets a predetermined rotational speed Ne3 for the target rotational speed Ne* (step S140).

[0060] Figure 3 It is an explanatory diagram showing an example of the target operating points A, B, and C of the first, second, and third power supply modes. The target operating points A, B, and C are defined by the target rotational speed Ne* and the target power Pe*, or are defined by the target torque Te* obtained by dividing the target rotational speed Ne* and the target power Pe* by the target rotational speed Ne*. In Figure 3 it also shows an example of the operating line Le (refer to the solid line), the boundary line Lm of the cavity resonance region (refer to the dotted line), the constant power line (refer to the dash-dotted line), and the constant efficiency line (refer to the double dash-dotted line). The operating line Le is a line used to operate the engine 22 efficiently during hybrid driving. The boundary line Lm of the cavity resonance region is a line of the boundary on the high rotational speed and low torque side of the cavity resonance region. The constant power line is a line where the power Pe of the engine 22 is constant. The constant efficiency line is a line where the efficiency of the engine 22 is constant.

[0061] As can be seen from Figure 3It can be seen that the predetermined power Pe1 is determined to be a relatively small power. In the embodiment, in order to suppress the cavity resonance as noise, the predetermined power Pe1 is determined to be a power smaller than any of the powers at the intersections of the operating line Le and the boundary line Lm of the cavity resonance region. The predetermined rotational speed Ne1 is determined to be the rotational speed at the intersection of the constant-power line (not shown) of the predetermined power Pe1 and the operating line Le.

[0062] The predetermined power Pe2 is determined to be a power greater than the predetermined powers Pe1 and Pe3. The predetermined rotational speed Ne2 is determined to be the rotational speed that avoids the cavity resonance region from the operating line Le. In the embodiment, the predetermined rotational speed Ne2 is determined to be the rotational speed at the intersection of the constant-power line (not shown) of the predetermined power Pe2 and the boundary line Lm of the cavity resonance region.

[0063] The predetermined power Pe3 is determined to be a power greater than the predetermined power Pe1 and smaller than the predetermined power Pe2. The predetermined rotational speed Ne3 is determined to be the rotational speed at which the engine 22 can operate efficiently compared to the first and second power supply modes. In the embodiment, the predetermined rotational speed Ne3 is determined to be the rotation at which the efficiency η is the highest among the constant-power lines (not shown) of the predetermined power Pe3.

[0064] Next, external power supply control will be described. When the HVECU 70 connects the connector 101 of the repeater 100 to the connector 55 of the hybrid vehicle 20 and connects an external device to the socket 103 of the repeater 100, it performs external power supply control. As described above, in 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 Sref, the engine 22 and the motor MG1 are stopped, and when the SOC of the battery 50 is less than the threshold Sref, the engine 22 is operated and the motor MG1 generates electricity according to a predetermined power supply mode. Therefore, in the external power supply control, the HVECU 70 controls the external power supply device 58 to supply power from the power line 54 side to the connector 55 side regardless of the SOC of the battery 50. In addition, in the external power supply control, through the coordinated control of the HVECU 70, the engine ECU 24, and the motor ECU 40, when the SOC of the battery 50 is equal to or higher than the threshold Sref, the engine 22 and the motor MG1 are stopped, and when the SOC of the battery 50 is less than the threshold Sref, the engine 22 is operated according to the target power Pe* and the target rotational speed Ne*, and the power from the engine 22 is used to generate electricity through the motor MG1 to control the engine 22 and the inverter 41. Through such control, during external power supply, when the SOC of the battery 50 is equal to or higher than the threshold Sref, the SOC of the battery 50 decreases, and when the SOC of the battery 50 is less than the threshold Sref, the SOC of the battery 50 increases or decreases according to the relationship between the generated power of the motor MG1 and the power consumption of the external device in the power supply mode selected by the user. In addition, the HVECU 70 ends the external power supply control when the connection between the socket 103 of the repeater 100 and the external device is disconnected, the connection between the connector 55 of the hybrid vehicle 20 and the connector 101 of the repeater 100 is disconnected, etc.

[0065] In the hybrid vehicle 20 of the embodiment described above, when the user desires external power supply, the first, second, and third power supply modes are displayed on the display unit 92, and 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, the user only needs to select any one of the first, second, and third power supply modes, so the user can more easily set the power supply mode.

[0066] In the above embodiment, the predetermined power supply mode is a power supply mode in which the engine 22 and the motor MG1 are stopped when the SOC of the battery 50 is equal to or higher than the threshold Sref, and the engine 22 is operated and the motor MG1 generates electricity when the SOC of the battery 50 is less than the threshold Sref, but it is not limited thereto. For example, the predetermined power supply mode may also be a power supply mode in which the engine 22 is operated and the motor MG1 generates electricity regardless of the SOC of the battery 50.

[0067] In the above-described embodiment, the plurality of power supply modes include the first, second, and third power supply modes as predetermined power supply modes, but are not limited thereto. 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 modes. Additionally, the plurality of power supply modes may include a second predetermined power supply mode in addition to the predetermined power supply modes. 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.

[0068] In the above-described embodiment, the HVECU 70 sets the target power Pe* and the target rotational speed Ne* of the engine 22 according to the power supply mode selected by the user from the first, second, and third power supply modes, but is not limited thereto. For example, the HVECU 70 may also set the target rotational speed Ne* and the target torque Te* of the engine 22 according to the power supply mode selected by the user. Additionally, the HVECU 70 may only set the target power Pe* of the engine 22 when the power supply mode selected by the user is the first power supply mode or the second power supply mode. In this case, the engine 22 can be operated at an arbitrary rotational speed Ne.

[0069] In the above-described embodiment, the HVECU 70 displays the first, second, and third power supply modes on the display unit 92, and the user operates the power supply mode setting unit 90 to select any one of the first, second, and third power supply modes, but is not limited thereto. 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.

[0070] In the above-described embodiment, the HVECU 70 displays the first, second, and third power supply modes on the display unit 92, but is not limited thereto. For example, the HVECU 70 may also report the first, second, and third power supply modes to the user by voice in addition to displaying the first, second, and third power supply modes on the display unit 92.

[0071] In the above-described embodiment, the HVECU 70 executes Figure 2 a processing routine, but is not limited thereto. For example, the HVECU 70 may also execute Figure 4 a processing routine. Figure 4 The processing routine is different from the Figure 2 processing routine in that the processing in steps S100 and S110 is replaced with the processing in steps S200 to S260. Therefore, for the processing in the Figure 4 processing routine that is the same as the Figure 2 processing routine, the same step numbers are added, and detailed descriptions are omitted.

[0072] InFigure 4 In the processing routine of, the HVECU 70 determines whether the current time is a predetermined time period (step S200). Here, the predetermined time period is determined to be a time period in which noise suppression is required, for example, the nighttime period. When the HVECU 70 determines that the current time is the predetermined time period, it sets the first power supply mode (noise suppression priority mode) as the recommended power supply mode (step S210).

[0073] When the HVECU 70 determines that the current time is not the predetermined time period, it determines whether the fuel quantity Qf in the fuel tank 25 is equal to or greater than the threshold value Qfref (step S220). Here, the threshold value Qfref is used to determine whether a certain amount of fuel remains 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 rate priority mode) as the recommended power supply mode (step S240). Through the processing of steps S200 to S240 in this way, it is possible to more appropriately set the recommended power supply mode according to whether the current time is 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.

[0074] 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 in different ways for the recommended power supply mode and the other power supply modes on the display unit 92 (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, the user can select any one of the first, second, and third power supply modes, so the user can more easily set the power supply mode. In the processing of step S250, for example, the HVECU 70 displays it on the display unit 92 in such a way that the recommended power supply mode is in larger or bolder text than the other power supply modes to be eye-catching. As a result, the user can easily identify the recommended power supply mode and easily select the recommended power supply mode. Moreover, when the user selects any one of the first, second, and third power supply modes, the HVECU 70 proceeds to any of steps S120 to S140 according to the power supply mode selected by the user.

[0075] The HVECU 70 may also replace Figure 4 's processing routine and execute Figure 5 's processing routine. Figure 5 's processing routine is different from Figure 4 's processing routine in that the processing of step S202 is added. Therefore, regarding Figure 5 's processing routine, the part related toFigure 4 The same processing as the processing routine is performed, with the same step number added, and detailed description is omitted.

[0076] In Figure 5 In the processing routine of, when HVECU70 determines in step S200 that the current time is a predetermined time period, it determines whether the current location of the vehicle is within a residential area (step S202). When HVECU70 determines that the current location of the vehicle is within a residential area, it sets the first power supply mode (noise suppression priority mode) as the recommended power supply mode (step S210). On the other hand, when HVECU70 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 consumption rate priority mode) as the recommended power supply mode according to the fuel quantity Qf of the fuel tank 25 (steps S220 to S240). Thus, HVECU70 can more appropriately set the recommended power supply mode according to whether the current location of the vehicle is within a residential area.

[0077] Here, the determination process of whether the current location of the vehicle is within a residential area is described. For example, HVECU70 determines whether the current location of the vehicle is within a residential area through Figure 6 the sub-processing routine of. In Figure 6 the sub-processing routine of, HVECU70 determines whether the current location of the vehicle is an urban section (step S300). For example, this process is performed as follows. HVECU70 sends a determination instruction to the navigation device 60. The navigation device 60 that receives the determination instruction uses the current location of the vehicle and the map information to determine whether the current location of the vehicle is an urban section, and sends the determination result to HVECU70. HVECU70 receives the determination result. When HVECU70 determines that the current location of the vehicle is an urban section, it determines that the current location of the vehicle is within a residential area (step S320), and ends the sub-processing routine.

[0078] When the HVECU70 determines that the current location of the vehicle is not an urban section, it determines whether the number of residences Nh around the vehicle is equal to or greater than the threshold Nhref (step S310). Here, the number of residences Nh around the vehicle is detected by image analysis of the captured image of the external camera 89. The threshold Nhref is used to determine whether the current location of the vehicle is considered to be within a residential area. When the HVECU70 determines that the number of residences Nh around the vehicle is equal to or greater than the threshold 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 HVECU70 determines that the number of residences Nh around the vehicle is less than the threshold 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 HVECU70 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 an urban section and whether the number of residences Nh around the vehicle is equal to or greater than the threshold Nhref.

[0079] In Figure 4 、 Figure 5 's processing routine, the HVECU70 displays the first, second, and third power supply modes in different ways on the display unit 92 for the recommended power supply mode and other power supply modes. However, the HVECU70 may also 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 HVECU70 may also enter any step among steps S120 to S140 according to the recommended power supply mode. In addition, when the user does not permit the recommended power supply mode, the HVECU70 may also enter any step among steps S120 to S140 according to the power supply mode at the time of the last external power supply or according to the initially set power supply mode. As the initially set power supply mode, for example, the third power supply mode (fuel consumption rate priority power supply mode) is used.

[0080] The HVECU70 may also replace Figure 2 、 Figure 4 、 Figure 5 's processing routine and execute Figure 7 's processing routine. Figure 7 's processing routine relative to Figure 4 's processing routine, before the processing of step S200, the processing of steps S100 and S110 of Figure 2 's processing routine and the processing of a new step S112 are added.

[0081] In Figure 7In the processing routine, in step S100, HVECU70 displays the first, second, and third power supply modes on the display unit 92. When it is determined in step S110 that the user selects any one of the first, second, and third power supply modes, it enters any one of steps S120 to S140 according to the power supply mode selected by the user.

[0082] When HVECU70 determines in step S110 that the user has not selected any of the first, second, and third power supply modes, it determines whether a predetermined time T1 has elapsed since the first, second, and third power supply modes started to be displayed on the display unit 92 (step S112). When HVECU70 determines that the predetermined time T1 has not elapsed since the first, second, and third power supply modes started to be displayed on the display unit 92, it returns to step S110. On the other hand, when HVECU70 determines that the predetermined time T1 has elapsed since the first, second, and third power supply modes started to be displayed on the display unit 92, it enters step S200. That is, HVECU70 can also set a recommended power supply mode when the user has not selected any of the first, second, and third power supply modes within the predetermined time T1 since the first, second, and third power supply modes started to be displayed on the display unit 92, and display the first, second, and third power supply modes in different ways for the recommended power supply mode and the other power supply modes on the display unit 92.

[0083] In addition, it is also possible to Figure 7 in the processing routine, add Figure 5 the processing of step S202 of the processing routine.

[0084] 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 and 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 (HVECU70) corresponds to the "power supply mode setting system" of the present disclosure. However, it is not limited thereto. Figure 8 It is a schematic structural diagram of the external power supply system 10 which is a modification example. As shown in the figure, the external power supply system 10 includes the Figure 1 same hybrid vehicle 20 and the portable terminal 120. The portable terminal 120 is configured as a smart phone 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. In the portable terminal 120, a power supply mode setting application 130, which is an application software for the user to set the power supply mode of the external power supply, is installed. The portable terminal 120 communicates with the hybrid vehicle 20 via a communication network such as the Internet or a telephone line through the processing of the power supply mode setting application 130.

[0085] In the external power supply system 10, when the user desires external power supply, the following processing can also be performed instead of the processing of steps S100 and S110 of the processing routine of Figure 2 The portable terminal 120, through the processing of the power supply mode setting application 130, displays the first, second, and third power supply modes on the display 121. Next, when the user operates the display 121 and selects any one of the first, second, and third power supply modes, the portable terminal 120 sends the power supply mode selected by the user to the HVECU 70, and the received HVECU 70 enters any one of steps S120 to S140 according to the power supply mode selected by the user. That is, in the portable terminal 120, the first, second, and third power supply modes can also be displayed on the display 121, and the user operates 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.

[0086] Replace Figure 2 The processing of steps S100 and S110 of the processing routine of Figure 4 , Figure 5 At least a part of the processing of steps S200 to S260 of Figure 7 At least a part of the processing of steps S100 to S260 of

[0087] In the above embodiment, regarding external power supply, it is assumed that power is supplied from the hybrid vehicle 20 to an external machine, but it is not limited thereto. For example, regarding external power supply, it can also be power supplied from the hybrid vehicle 20 to a house or the like.

[0088] In the above embodiment, the hybrid vehicle 20 uses the battery 50 as the power storage device, but it is not limited thereto. For example, the hybrid vehicle 20 can also use a capacitor as the power storage device.

[0089] In the above embodiment, the hybrid vehicle 20 includes the engine ECU 24, the motor ECU 40, the battery ECU 52, and the HVECU 70, but it is not limited thereto. For example, the hybrid vehicle 20 can also be configured such that at least two of the engine ECU 24, the motor ECU 40, the battery ECU 52, and the HVECU 70 are integrated.

[0090] In the above embodiment, in the hybrid vehicle 20, the connector 55 is connected to the external power supply device 58 via the power line 57, but it is not limited thereto. For example, it can also be as Figure 9As shown in the modified example of the hybrid vehicle 20B, the connector 55 and the socket 56 are connected to the external power supply device 58 via the power line 57. The hybrid vehicle 20B may not have the connector 55.

[0091] In the above-described embodiment, the hybrid vehicle 20 includes 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 is not limited thereto. For example, it may be as Figure 10 As shown in the modified example of the hybrid vehicle 20C, it includes 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.

[0092] In the above-described embodiment, the mode of the hybrid vehicle 20 and the mode of the external power supply system 10 including the hybrid vehicle 20 and the portable terminal 120 (the power supply mode setting application 130) are described, but are not limited to these. For example, it may also be in the form of a control method for the hybrid vehicle 20 or in the form of a power supply mode setting method.

[0093] Explain the correspondence between the main elements of the embodiment and the main elements of the invention described in the summary of the invention. 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 (the power supply mode setting application 130) correspond to the "power supply mode setting system".

[0094] Furthermore, the correspondence between the main elements of the embodiment and the main elements of the invention described in the summary of the invention is an example for specifically explaining the manner in which the embodiment is used to implement the invention described in the summary of the invention, so it is not limited to the elements of the invention described in the summary of the invention. That is, the interpretation of the invention described in the summary of the invention should be based on the description of this part, and the embodiment is only a specific example of the invention described in the summary of the invention.

[0095] As described above, the manner for implementing the present disclosure has been described using the embodiment, but the present disclosure is not limited to such an embodiment, and can of course be implemented in various ways without departing from the gist of the present disclosure.

[0096]

Industrial Applicability

[0097] The present disclosure can be used in the manufacturing industry of hybrid vehicles and the like.

Claims

1. A hybrid vehicle comprising: An engine that uses fuel from a fuel tank to output power; a generator that uses power from the engine to generate electricity; a power storage device that is connected to the power line together with the generator; and a control device, wherein The control device presents a plurality of power supply modes having different power supply characteristics to the user when the user desires external power supply from the vehicle to the outside of the vehicle, and when the user selects any one of the plurality of power supply modes, performs the external power supply in the power supply mode selected by the user.

2. The hybrid vehicle according to claim 1, wherein: Among the plurality of power supply modes, predetermined power supply modes for operating the engine and generating power by the generator 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 consumption rate.

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 is powered when at least the power storage ratio of the power storage device is less than a predetermined ratio during the external power supply.

4. The hybrid vehicle according to any one of claims 1 to 3, wherein: The control device includes a recommended power supply mode recommended according to the current environment among the plurality of power supply modes and prompts the user.

5. The hybrid vehicle according to claim 4, wherein: The control device presents the user with different presentation modes in the recommended power supply mode and in a power supply mode other than the recommended power supply mode.

6. The hybrid vehicle according to claim 4 or 5, wherein: Among the plurality of power supply modes, as predetermined power supply modes for operating the engine and generating power by the generator at least when the power storage ratio of the power storage device is less than a predetermined ratio during the external power supply, there are a first power supply mode giving priority to noise suppression, a second power supply mode giving priority to power supply performance, and a third power supply mode giving priority to fuel consumption rate, The control device: When the current time is a predetermined time period, the first power supply mode is set as the recommended power supply mode, When the current time is not the predetermined time period and the amount of fuel in the fuel tank is greater than a predetermined amount, setting the second power supply mode as the recommended power supply mode, When the current time is not the predetermined time period and the amount of fuel is less than the predetermined amount, the third power supply mode is set as the recommended power supply mode.

7. The hybrid vehicle according to claim 6, wherein: The control device: When the current time is the predetermined time period, When the current location of the vehicle is in a residential area, setting the first power supply mode 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 is set as the recommended power supply mode based on the fuel amount.

8. The hybrid vehicle according to any one of claims 2, 6 and 7, wherein: The first power supply mode is a mode in which the engine is operated by outputting a first power. The second power supply mode is a mode in which the engine is operated in a manner of outputting a second power greater than the first power. The third power supply mode is a mode for operating the engine at an operating point with higher efficiency than those in the first and second power supply modes.

9. A control method for a hybrid vehicle, the hybrid vehicle comprising: an engine that uses fuel from a fuel tank to output power; a generator that uses power from the engine to generate electricity; and a power storage device that is connected to the power line together with the generator, wherein: When a user desires external power feeding from the vehicle to outside the vehicle, 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, external power feeding is performed in the power feeding mode selected by the user.

10. A power supply mode setting system for setting a power supply mode in a hybrid vehicle when a user desires external power supply from the vehicle to the outside of the vehicle, the hybrid vehicle comprising: an engine that outputs power using fuel from a fuel tank; a generator that generates power using power from the engine; a power storage device that is connected to a power line together with the generator; and a control device, wherein A plurality of the power supply modes having different power supply characteristics are presented to a 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.

11. A method for setting a power supply mode, for setting a power supply mode in a hybrid vehicle when a user desires external power supply from the vehicle to the outside of the vehicle, the hybrid vehicle comprising: an engine that outputs power using fuel from a fuel tank; a generator that generates power using power from the engine; a power storage device that is connected to a power line together with the generator; and a control device, wherein: A plurality of the power supply modes having different power supply characteristics are presented to a 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.

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