Hybrid vehicle, hybrid vehicle control method, power supply mode setting system, power supply mode setting method
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2023-12-29
- Publication Date
- 2026-08-04
Smart Images
Figure 0007899816000001 
Figure 0007899816000002 
Figure 0007899816000003
Abstract
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 discharge power setting 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 discharge power setting value. Therefore, 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 described herein is A hybrid vehicle comprising an engine that outputs power using fuel from a fuel tank, a generator that generates electricity using power from the engine, an energy storage device connected to the power line together with the generator, and a control device, When the user desires external power supply from the vehicle to the outside, the control device presents the user with a plurality of power supply modes, each with different power supply characteristics, and when the user selects one of the plurality of power supply modes, it performs the external power supply using the power supply mode selected by the user. This is the gist of it.
[0008] In the hybrid vehicle of this disclosure, if the user desires external power supply from the vehicle to an external device, the vehicle presents the user with multiple power supply modes, each with different power supply characteristics. The user selects one of these modes, and the vehicle then performs external power supply using the selected mode. Therefore, the user only needs to select one of the multiple power supply modes, making it easier for the user to configure the power supply mode. Here, "external power supply" may refer to power supply from the vehicle to an external device, or power supply from the vehicle to a house or the like. "External device" refers to equipment that is not a component of the vehicle, such as electrical appliances or mobile devices.
[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 the following as predetermined power supply modes for operating the engine and generating power with the generator: 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.
[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 is powered when the charge storage ratio of the power storage device is less than a predetermined ratio when the power is supplied from an external source.
[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 from among the plurality of power supply modes, which is recommended based on the current environment. In this way, the hybrid vehicle can present to the user a recommended power supply mode based on the current environment.
[0012] [5] In the hybrid vehicle described above (the hybrid vehicle described in [4]), the control device may present the recommended power supply mode and other power supply modes to the user in different manners. This makes it 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 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 predetermined power supply modes in which the engine is operated and the generator is powered when the charge storage ratio of the power storage device is less than a predetermined ratio when the external power supply is performed. The control device may set the first power supply mode as the recommended power supply mode when the current time is within a predetermined time period, set the second power supply mode as the recommended power supply mode when the current time is not within the predetermined time period and the amount of fuel in the fuel tank is greater than or equal to a predetermined amount, and set the third power supply mode as the recommended power supply mode when the current time is not within the predetermined time period and the amount of fuel 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 within a predetermined time period and whether the amount of fuel in the fuel tank is greater than or equal to a predetermined amount.
[0014] [7] In the hybrid vehicle described above (the hybrid vehicle described in [6]), when the current time is within the predetermined time period, the recommended power supply mode may be set to the first power supply mode when the vehicle is located within a residential area, and the recommended power supply mode may be set to the second power supply mode or the third power supply mode based on the amount of fuel when the vehicle is located outside a residential area. In this way, the hybrid vehicle can set the recommended power supply mode based on whether or not the vehicle is located within a residential area.
[0015] [8] In the hybrid vehicle described above (the hybrid vehicle described in any one of [2], [6], or [7]), 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 is a mode in which the engine is operated at an operating point that is more efficient than the first and second power supply modes.
[0016] [9] The control method for the hybrid vehicle described herein is 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 power from the engine, and a power storage device connected to a power line together with the generator, When a user requests external power supply from the vehicle to an external device, the system presents the user with multiple power supply modes, each with different power supply characteristics. If the user selects one of these modes, the system performs the external power supply using the selected mode. This is the gist of it.
[0017] In the hybrid vehicle control method disclosed herein, when the user desires external power supply from the vehicle to the outside, the system presents the user with multiple power supply modes, each with different power supply characteristics. The user selects one of these modes, and the system then performs external power supply using the selected mode. Therefore, since the user only needs to select one of the multiple power supply modes, it is easier for the user to set 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 the user desires external power supply from the vehicle to the outside of the vehicle, in a hybrid vehicle comprising 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 a power line together with the generator, and a control device, The system presents the user with a plurality of power supply modes, each having different power supply characteristics, and when the user selects one of the plurality of power supply modes, the system causes the vehicle to perform the external power supply using the power supply mode selected by the user. This is the gist of it.
[0019] The power supply mode setting system of this disclosure presents the user with multiple power supply modes, each with different power supply characteristics. When the user selects one of the multiple power supply modes, the system causes the vehicle to supply external power using the power supply mode selected by the user. Therefore, since the user only needs to select one of the multiple power supply modes, it can be set more easily than a power supply mode. Here, the "power supply mode setting system" may be a control device installed in a hybrid vehicle, or it may be a mobile terminal capable of communicating with the hybrid vehicle, such as a smartphone or tablet.
[0020]
[11] The power supply mode setting method of this 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 outside 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 from the plurality of power feeding modes, causing the vehicle to perform the external power feeding in the power feeding mode selected by the user. This 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 from 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 from the plurality of power feeding modes, the user can set it more easily than the power feeding mode.
Brief Description of Drawings
[0022] [Figure 1] It is a schematic configuration diagram of a hybrid vehicle according to an embodiment of the present disclosure. [Figure 2] It is a flowchart showing an example of a processing routine. [Figure 3] It is an explanatory diagram showing an example of target operating points of the first, second, and third power feeding modes. [Figure 4] It is a flowchart showing an example of a processing routine of a modification. [Figure 5] It is a flowchart showing an example of a processing routine of a modification. [Figure 6] It is a flowchart showing an example of a sub-processing routine. [Figure 7] It is a flowchart showing an example of a processing routine of a modification. [Figure 8] It is a schematic configuration diagram of an external power feeding system of a modification. [Figure 9]This is a schematic diagram of a modified hybrid vehicle. [Figure 10] This is a schematic diagram of a modified hybrid vehicle. [Modes for carrying out the invention]
[0023] Embodiments for implementing this disclosure will be described with reference to the drawings. Figure 1 is a schematic diagram of a hybrid vehicle 20 according to an embodiment of this disclosure. As shown in Figure 1, the hybrid vehicle 20 of the embodiment includes an engine 22, planetary gears 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 diesel from the fuel tank 25. The crankshaft 23 of the engine 22 is connected to the carrier of the planetary gear 30. The engine 22 is operated and controlled by an electronic control unit for the engine (hereinafter referred to as "engine ECU") 24.
[0025] The engine ECU 24 is a microcomputer equipped with a CPU, ROM, RAM, flash memory, input / output ports, and communication ports. The engine ECU 24 receives signals from various sensors via its input ports. For example, the engine ECU 24 receives the crank angle θcr from the crank position sensor 23a, which detects the rotational position of the crankshaft 23. The engine ECU 24 outputs various control signals via its output ports. For example, the engine ECU 24 outputs control signals to the intake valves, fuel injectors, and spark plugs (none of which are 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 and 39b via a differential gear 38. The carrier of the planetary gear 30 is connected to the crankshaft 23 of the engine 22.
[0027] Motors MG1 and MG2 are configured, for example, as synchronous generator motors. The rotor of motor MG1 is connected to the sun gear of the planetary gear 30, as described above. The rotor of motor MG2 is connected to the drive shaft 37. Inverters 41 and 42 are configured as inverter circuits having multiple switching elements. Inverters 41 and 42 are connected to the battery 50 via power lines 54. Motors MG1 and MG2 are rotationally driven by the switching of multiple switching elements in inverters 41 and 42 by the motor electronic control unit (hereinafter referred to as "motor ECU") 40.
[0028] The motor ECU 40, like the engine ECU 24, is equipped with a microcomputer. The motor ECU 40 receives signals from various sensors via input ports. For example, the motor ECU 40 receives rotational positions θm1 and θm2 from rotational position sensors 43 and 44, which detect the rotational position of the rotors of 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 inverters 41 and 42. The motor ECU 40 calculates the electrical angles θe1 and θe2 and rotational speeds Nm1 and Nm2 of motors MG1 and MG2 based on the rotational positions θm1 and θm2 of the rotors of motors MG1 and 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. As described above, the battery 50 is connected to the inverters 41 and 42 via power lines 54. The battery 50 is managed by an electronic control unit for batteries (hereinafter referred to as "battery ECU") 52.
[0030] The battery ECU 52, like the engine ECU 24, is equipped with a microcomputer. The battery ECU 52 receives signals from various sensors via input ports. For example, the battery ECU 52 receives 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 HVECU 70.
[0031] Connector 55 is configured to be connectable to connector 101 of repeater 100. Repeater 100 includes connector 101 and outlet 103 connected to connector 101 via power line 102. Outlet 103 is capable of connecting external devices that are not components of the vehicle. Examples of external devices include electrical appliances and mobile devices.
[0032] The external power supply device 58 is connected to the inverters 41 and 42 and the battery 50 via power lines 54, and also to the connector 55 via power line 57. The external power supply device 58 converts the DC power from power line 54 into AC power of a predetermined voltage and supplies it to the connector 55. Specifically, the external power supply device 58 supplies AC power of a predetermined voltage to external equipment connected to the connector 55 via a repeater 100. Hereinafter, supplying power from the vehicle to the outside (external equipment) will be referred to as "external power supply".
[0033] The navigation device 60 comprises a main unit 61 with a built-in control unit, a GPS antenna 62, and a display 63. The control unit of the main unit 61 has a microcomputer, a storage medium (e.g., a hard disk or SSD), input / output ports, and communication ports. Map information is stored in the storage medium. The map information includes service information (e.g., tourist information and parking information), and road information for each driving section (e.g., between traffic lights or between intersections). The road information includes distance information, width information, number of lanes information, regional information (urban or suburban), type information (general road or highway), gradient information, legal speed limit, and number of traffic lights. The GPS antenna 62 receives information about the vehicle's current location. The display 63 is configured as a touch panel type display and displays various information such as map information, the vehicle's current location, and the planned driving route from the vehicle's current location to the destination, and also allows the user to input various instructions. When the user sets a destination by operating the display 63, the main unit 61 of the navigation device 60 sets a planned route from the vehicle's current location to the destination based on map information, the vehicle's current location, and the destination, and displays the set planned route on the display 63 to provide route guidance. The navigation device 60 communicates with the HVECU 70.
[0034] The HVECU70, like the engine ECU24, is equipped with a microcomputer. The HVECU70 receives signals from various sensors via input ports. For example, the HVECU70 receives the fuel quantity Qf from the fuel sensor 25a attached to the fuel tank 25. The HVECU70 also receives signals from the power switch 80, the shift position SP from the shift position sensor 82 which detects the operating position of the shift lever 81, the accelerator opening Acc from the accelerator pedal position sensor 84 which detects the amount the accelerator pedal 83 is pressed, the brake pedal position BP from the brake pedal position sensor 86 which detects the amount the brake pedal 85 is pressed, and the vehicle speed V from the vehicle speed sensor 87. The HVECU70 also receives images of the interior of the vehicle from the interior camera 88, images of the exterior (around the vehicle) from the exterior camera 89, and signals from the power supply mode setting unit 90 for the user to set the power supply mode for external power supply. The HVECU70 outputs various control signals via output ports. For example, the HVECU70 outputs control signals to the external power supply unit 58 and to the display unit 92 mounted on the instrument panel. As mentioned above, the HVECU70 communicates with the engine ECU24, motor ECU40, battery ECU52, and navigation device 60.
[0035] In the hybrid vehicle 20 of this embodiment, the shift position SP can be the parking position (P position), reverse position (R position), neutral position (N position), drive position (D position), etc. When the shift position SP is in the P position, the drive wheels 39a and 39b are locked by the parking lock device.
[0036] The hybrid vehicle 20 of this embodiment switches between hybrid driving, in which the vehicle is driven with the engine 22 running, and electric driving, in which the vehicle is driven with the engine 22 stopped, through coordinated control of the HVECU 70, engine ECU 24, and motor ECU 40.
[0037] Next, the operation of the hybrid vehicle 20 of the embodiment will be described. In particular, the operation of the vehicle when the user requests external power supply while the vehicle is parked, such as in an emergency or during leisure time, will be described. Figure 2 is a flowchart of an example of a processing routine executed by the HVECU 70. This routine is executed when the user requests external power supply while the vehicle is parked. In the embodiment, when the vehicle is in a system-stopped state and the user presses the power switch 80 twice without pressing the brake pedal 85, the HVECU 70 determines that the user has requested external power supply and executes the processing routine in Figure 2.
[0038] In the processing routine shown in Figure 2, the HVECU 70 first 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 charge level SOC of the battery 50 is greater than or equal to the threshold Sref, the engine 22 and motor MG1 are stopped, and when the charge level SOC of the battery 50 is less than the threshold Sref, the engine 22 is operated and the motor MG1 generates power. In these predetermined power supply modes, when the charge level SOC of the battery 50 is greater than or equal to the threshold Sref, external power is supplied using only the power from the battery 50, and when the charge level SOC of the battery 50 is less than the threshold Sref, external power is supplied using the power generated by the motor MG1 (and the power from the battery 50). The first power supply mode is a noise suppression priority mode that prioritizes noise reduction, 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 this embodiment, in the process of step S100, the HVECU 70 displays the differences between each power supply mode, such as "noise suppression priority mode," "power supply performance priority mode," and "fuel efficiency priority mode," on the display unit 92 so that the user can recognize them.
[0039] Next, the HVECU70 waits for the user to select one of the first, second, or third power supply modes (step S110). Since the first, second, and third power supply modes are displayed on the display unit 92, the user can simply operate the power supply mode setting unit 90 to select one of the first, second, or third power supply modes. This makes it easier for the user to set the power supply mode.
[0040] When the user selects one of the first, second, or third power supply modes, the HVECU 70 sets the target power Pe* and target rotational speed Ne* of the engine 22 based on the power supply mode selected by the user (steps S120 to S140), starts external power supply control using the set target power Pe* and target rotational speed Ne* (step S150), and then terminates the processing routine.
[0041] The following describes the process of setting the target power Pe* and target rotational speed Ne* of the engine 22 (steps S120 to S140), followed by external power supply control (step S150). 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] Figure 3 is an explanatory diagram showing examples of target operating points A, B, and C for the first, second, and third power supply modes. Target operating points A, B, and C are defined by the target rotational speed Ne* and target power Pe*, or by the target rotational speed Ne* and the target torque Te* obtained by dividing the target power Pe* by the target rotational speed Ne*. Figure 3 also shows examples of the operating line Le (see solid line), the noise region boundary line Lm (see dashed line), the equal power line (see dashed line), and the equal efficiency line (see dashed line). The operating line Le is the line for efficiently operating the engine 22 when driving in hybrid mode, etc. The noise region boundary line Lm is the boundary line on the high rotational speed, low torque side of the noise region. The equal power line is the line where the power Pe of the engine 22 is constant. The equal efficiency line is the line where the efficiency of the engine 22 is constant.
[0043] As can be seen from Figure 3, the predetermined power Pe1 is set to a relatively small power. In this embodiment, the predetermined power Pe1 is set to be smaller than any of the powers at multiple intersections of the operating line Le and the boundary line Lm of the noise region in order to suppress the booming noise as noise. The predetermined rotational speed Ne1 is set to the rotational speed at the intersection of the equipower line (not shown) of the predetermined power Pe1 and the operating line Le.
[0044] The predetermined power Pe2 is defined as a power greater than the predetermined powers Pe1 and Pe3. The predetermined rotational speed Ne2 is defined as a rotational speed that avoids the muffled sound region from the operating line Le. In this embodiment, the predetermined rotational speed Ne2 is defined as the rotational speed at the intersection of the equipower line (not shown) of the predetermined power Pe2 and the boundary line Lm of the muffled sound region.
[0045] The predetermined power Pe3 is defined as a power greater than the predetermined power Pe1 and less than the predetermined power Pe2. The predetermined rotational speed Ne3 is defined as a rotational speed at which the engine 22 can be operated more efficiently compared to the first and second power supply modes. In this embodiment, the predetermined rotational speed Ne3 is defined as the rotational speed at which the efficiency η is highest among the equipower lines (not shown) of the predetermined power Pe3.
[0046] Next, external power supply control will be explained. 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, the first, second, and third power supply modes are all predetermined power supply modes in which the engine 22 and motor MG1 are stopped when the battery 50's charge level SOC is above the threshold Sref, and the engine 22 is operated and the motor MG1 generates power when the battery 50's charge level SOC is below the threshold Sref. 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 to the connector 55 regardless of the battery 50's charge level SOC. Furthermore, in external power supply control, the HVECU70, engine ECU24, and motor ECU40 coordinate control ensures that when the battery 50's charge level (SOC) is above the threshold Sref, the engine 22 and motor MG1 are stopped. When the battery 50's charge level (SOC) is below the threshold Sref, the engine 22 and inverter 41 are controlled so that the engine 22 operates based on the target power Pe* and target rotational speed Ne*, and power is generated by the motor MG1 using the power from the engine 22. Through this control, when external power is supplied, if the battery 50's charge level (SOC) is above the threshold Sref, the charge level (SOC) of the battery 50 decreases. When the battery 50's charge level (SOC) is below the threshold Sref, the charge level (SOC) of the battery 50 increases or decreases depending on the relationship between the power generated by the motor MG1 in the power supply mode selected by the user and the power consumption of the external device. Furthermore, the HVECU70 terminates 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.
[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, and when the user selects one of the first, second, or third power supply modes, external power is supplied in the power supply mode selected by the user. Therefore, since the user only needs to select one of the first, second, or third power supply modes, the user can set the power supply mode more easily.
[0048] In the embodiment described above, the predetermined power supply mode is a power supply mode in which the engine 22 and motor MG1 are stopped when the charge level SOC of the battery 50 is equal to or greater than the threshold Sref, and the engine 22 is operated and the motor MG1 is powered when the charge level SOC of the battery 50 is less than the threshold Sref, but 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 is powered regardless of the charge level SOC of the battery 50.
[0049] In the embodiments described above, the multiple power supply modes include a first, second, and third power supply mode as predetermined power supply modes, but are not limited thereto. For example, the multiple power supply modes do not have to include any one of the first, second, and third power supply modes as predetermined power supply modes. Furthermore, the multiple power supply modes may further 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 that stops the engine 22 and motor MG1 regardless of the state of charge (SOC) of the battery 50.
[0050] In the embodiment described above, the HVECU 70 sets the target power Pe* and target rotational speed Ne* of the engine 22 based on the power supply mode selected by the user from the first, second, and third power supply modes, but is not limited to this. For example, the HVECU 70 may set the target rotational speed Ne* and target torque Te* of the engine 22 based on the power supply mode selected by the user. Alternatively, 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 any rotational speed Ne.
[0051] In the embodiment described above, the HVECU 70 displays the first, second, and third power supply modes on the display unit 92, and the user selects one of the first, second, and third power supply modes by operating the power supply mode setting unit 90, but it is not limited to this. For example, the main unit 61 of the navigation device 60 may display the first, second, and third power supply modes on the display 63, and the user may select one of the first, second, and third power supply modes by operating the display 63.
[0052] In the embodiment described above, the HVECU 70 displays the first, second, and third power supply modes on the display unit 92, but 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 also inform the user of the first, second, and third power supply modes by voice.
[0053] In the embodiment described above, HVECU70 is assumed to execute the processing routine shown in Figure 2, but it is not limited to this. For example, HVECU70 may execute the processing routine shown in Figure 4. The processing routine in Figure 4 differs from the processing routine in Figure 2 in that the processing in steps S100 and S110 is replaced by the processing in steps S200 to S260. Therefore, the same step numbers are used for the processing in the processing routine in Figure 4 that are the same as those in the processing routine in Figure 2, and detailed explanations are omitted.
[0054] In the processing routine shown in Figure 4, the HVECU70 determines whether the current time falls 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, nighttime hours. When the HVECU70 determines that the current time falls within the predetermined time period, it sets the recommended power supply mode to the first power supply mode (noise suppression priority mode) (step S210).
[0055] When the HVECU 70 determines that the current time is not within a predetermined time period, it determines whether the fuel amount Qf in the fuel tank 25 is equal to or greater than the threshold Qfref (step S220). Here, the threshold 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 amount Qf in the fuel tank 25 is equal to or greater than the threshold Qfref, it sets the recommended power supply mode to the second power supply mode (power supply performance priority mode) (step S230). On the other hand, when the HVECU 70 determines that the fuel amount Qf in the fuel tank 25 is less than the threshold Qfref, it sets the recommended power supply mode to the third power supply mode (fuel efficiency priority mode) (step S240). Through these steps S200 to S240, the recommended power supply mode can be set more appropriately based on whether the current time is within a predetermined time period and whether the fuel amount Qf in the fuel tank 25 is equal to or greater than the threshold Qfref.
[0056] When the recommended power supply mode is set in steps S210 to S240, the HVECU70 displays the first, second, and third power supply modes on the display unit 92 in different ways from the recommended power supply mode and the other power supply modes (step S250), and waits for the user to select one of the first, second, or third power supply modes, as in step S110 (step S260). Even in this case, the user only needs to select one of the first, second, or third power supply modes, making it easier for the user to set the power supply mode. In the process of step S250, for example, the HVECU70 displays the recommended power supply mode on the display unit 92 in bold or larger font than the other power supply modes to attract the user's attention. This makes it easier for the user to recognize the recommended power supply mode and to select it. Then, when the user selects one of the first, second, or third power supply modes, the HVECU70 proceeds to one of steps S120 to S140 based on the power supply mode selected by the user.
[0057] HVECU70 may execute the processing routine shown in Figure 5 instead of the processing routine shown in Figure 4. The processing routine in Figure 5 differs from the processing routine in Figure 4 in that the processing in step S202 is added. Therefore, the same step numbers are used for the processing in the processing routine in Figure 5 that are the same as those in the processing routine in Figure 4, and detailed explanations are omitted.
[0058] In the processing routine shown in Figure 5, when the HVECU 70 determines in step S200 that the current time is within a predetermined time period, it determines whether the vehicle's current location is within a residential area (step S202). If the HVECU 70 determines that the vehicle's current location is within a residential area, it sets the recommended power supply mode to the first power supply mode (noise suppression priority mode) (step S210). On the other hand, if the HVECU 70 determines that the vehicle's current location is outside a residential area, it sets the recommended power supply mode to either the second power supply mode (power supply performance priority mode) or the third power supply mode (fuel efficiency priority mode) based on the fuel amount Qf in the fuel tank 25 (steps S220-S240). This allows the HVECU 70 to set the recommended power supply mode more appropriately based on whether the vehicle's current location is within a residential area.
[0059] Here, we will explain the process for determining whether the vehicle's current location is within a residential area. HVECU70 determines whether the vehicle's current location is within a residential area using, for example, the sub-processing routine shown in Figure 6. In the sub-processing routine shown in Figure 6, HVECU70 determines whether the vehicle's current location is within an urban area (step S300). This process is performed, for example, as follows: HVECU70 sends a determination instruction to the navigation device 60. The navigation device 60, having received the determination instruction, uses the vehicle's current location and map information to determine whether the vehicle's current location is within an urban area and sends the determination result to HVECU70. HVECU70 receives the determination result. If HVECU70 determines that the vehicle's current location is within an urban area, it determines that the vehicle's current location is within a residential area (step S320) and terminates the sub-processing routine.
[0060] When HVECU70 determines that the vehicle's current location is not in an urban area, it determines whether the number of houses Nh around the vehicle is greater than or equal to the threshold Nhref (step S310). Here, the number of houses Nh around the vehicle is the number of houses detected by image analysis of the images captured by the external camera 89. The threshold Nhref is used to determine whether the vehicle's current location can be considered to be within a residential area. When HVECU70 determines that the number of houses Nh around the vehicle is greater than or equal to the threshold Nhref, it determines that the vehicle's current location is within a residential area (step S320) and terminates the sub-processing routine. On the other hand, when HVECU70 determines that the number of houses Nh around the vehicle is less than the threshold Nhref, it determines that the vehicle's current location is outside a residential area (step S330) and terminates the sub-processing routine. These sub-processing routines allow the HVECU70 to more appropriately determine whether the vehicle's current location is within a residential area, based on whether the vehicle's current location is in an urban area and whether the number of houses Nh around the vehicle is greater than or equal to the threshold Nhref.
[0061] In the processing routines shown in Figures 4 and 5, the HVECU 70 displays the first, second, and third power supply modes on the display unit 92 in different ways for the recommended power supply mode and the other power supply modes. However, the HVECU 70 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, if the user permits the recommended power supply mode, the HVECU 70 may proceed to any of steps S120 to S140 based on the recommended power supply mode. Also, if the user does not permit the recommended power supply mode, the HVECU 70 may proceed to any of steps S120 to S140 based on the power supply mode used during the last external power supply, or based on the initial power supply mode. For example, the third power supply mode (fuel efficiency priority power supply mode) may be used as the initial power supply mode.
[0062] HVECU70 may execute the processing routine in Figure 7 instead of the processing routines in Figures 2, 4, and 5. The processing routine in Figure 7 adds the processing steps S100 and S110 of the processing routine in Figure 2, and a new step S112, before the processing step S200 of the processing routine in Figure 4.
[0063] In the processing routine shown in Figure 7, the HVECU 70 displays the first, second, and third power supply modes on the display unit 92 in step S100, and when it determines in step S110 that the user has selected one of the first, second, or third power supply modes, it proceeds to one of steps S120 to S140 based on the power supply mode selected by the user.
[0064] If the HVECU70 determines in step S110 that the user has not selected any of the first, second, or third power supply modes, it determines whether a predetermined time T1 has elapsed since the display of the first, second, or third power supply mode on the display unit 92 began (step S112). If the HVECU70 determines that the predetermined time T1 has not elapsed since the display of the first, second, or third power supply mode on the display unit 92 began, it returns to step S110. On the other hand, if the HVECU70 determines that the predetermined time T1 has elapsed since the display of the first, second, or third power supply mode on the display unit 92 began, it proceeds to step S200. In other words, if the user does not select any of the first, second, or third power supply modes within a predetermined time T1 after the HVECU 70 starts displaying the first, second, and third power supply modes on the display unit 92, the HVECU 70 may set a recommended power supply mode and display the first, second, and third power supply modes on the display unit 92 in different ways for the recommended power supply mode and the other power supply modes.
[0065] Furthermore, the processing step S202 of the processing routine in Figure 5 may be added to the processing routine in Figure 7.
[0066] In the embodiment described above, the hybrid vehicle 20 displays the first, second, and third power supply modes on the display unit 92 and the display 63, and the user selects one of the first, second, or third power supply modes by operating the power supply mode setting unit 90 and the display 93. In this case, the hybrid vehicle 20 (HVECU 70) can be considered to correspond to the "power supply mode setting system" of this disclosure. However, it is not limited to this. Figure 8 is a schematic configuration diagram of a modified external power supply system 10. As shown in the figure, the external power supply system 10 comprises the same hybrid vehicle 20 as in Figure 1 and a mobile terminal 120. The mobile terminal 120 is configured as a smartphone or tablet terminal and comprises a computer, a display 121, and a communication device. The display 121 is configured as a touch panel type display. The mobile terminal 120 has a power supply mode setting app 130 installed, which is application software for the user to set the power supply mode of the external power supply. The mobile terminal 120 communicates with the hybrid vehicle 20 via a communication network such as the internet or a telephone line, through processing by the power supply mode setting application 130.
[0067] In the external power supply system 10, if the user desires external power supply, the following processing may be performed instead of the processing in steps S100 and S110 of the processing routine in Figure 2. The mobile terminal 120 displays the first, second, and third power supply modes on the display 121 through the processing of the power supply mode setting application 130. Subsequently, when the user operates the display 121 to select one of the first, second, or third power supply modes, the mobile terminal 120 transmits the power supply mode selected by the user to the HVECU 70, and the HVECU 70, upon receiving this, proceeds to one of steps S120 to S140 based on the power supply mode selected by the user. In other words, the mobile terminal 120 may display the first, second, and third power supply modes on the display 121, and the user may operate the display 121 to select one of the first, second, or third power supply modes. In this case, the mobile terminal 120 (power supply mode setting application 130) can be considered to correspond to the "power supply mode setting system" in this disclosure.
[0068] In Figure 2, steps S100 and S110 of the processing routine were replaced from the processing of the hybrid vehicle 20 to the processing of the mobile terminal 120. Similarly, at least a portion of the processing in steps S200 to S260 in Figures 4 and 5, and at least a portion of the processing in steps S100 to S260 in Figure 7, may also be replaced from the processing of the hybrid vehicle 20 to the processing of the mobile terminal 120.
[0069] In the embodiment described above, the external power supply is provided from the hybrid vehicle 20 to external equipment, but it is not limited to this. For example, the external power supply may be provided from the hybrid vehicle 20 to a house or the like.
[0070] In the embodiment described above, the hybrid vehicle 20 is assumed to use a battery 50 as an energy storage device, but it is not limited to this. For example, the hybrid vehicle 20 may use a capacitor as an energy storage device.
[0071] In the embodiment described above, the hybrid vehicle 20 is provided with an engine ECU 24, a motor ECU 40, a battery ECU 52, and an HVECU 70, but it is not limited to this. For example, at least two of the engine ECU 24, motor ECU 40, battery ECU 52, and HVECU 70 may be integrated into a single unit in the hybrid vehicle 20.
[0072] In the embodiments described above, the hybrid vehicle 20 is assumed to have a connector 55 connected to an external power supply device 58 via a power line 57, but it is not limited to this. For example, as shown in the modified hybrid vehicle 20B of Figure 9, the connector 55 and outlet 56 may be connected to the external power supply device 58 via a power line 57. The hybrid vehicle 20B does not need to have a connector 55.
[0073] In the embodiment described above, the hybrid vehicle 20 is provided with an engine 22, planetary gears 30, motors MG1 and MG2, inverters 41 and 42, a battery 50, and an external power supply device 58, but is not limited to this. For example, as shown in the modified hybrid vehicle 20C of Figure 10, it may be provided with an engine 22, a clutch CL, a motor MG, an inverter IV, a battery 50, a stepped transmission TM, and an external power supply device 58. In the hybrid vehicle 20C, the engine 22 is connected to the drive wheels 39a and 39b via a clutch K0, a motor MG, a stepped transmission TM, and a 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 a power line 54.
[0074] In the embodiments described above, the form of the hybrid vehicle 20 and the form of the external power supply system 10 comprising the hybrid vehicle 20 and a mobile terminal 120 (power supply mode setting application 130) have been described, but the invention is not limited to these. For example, it may be a form of control method for the hybrid vehicle 20, or a form of 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 section on means for solving the problem will be explained. In the embodiment, the hybrid vehicle 20 corresponds to "hybrid vehicle," the engine 22 corresponds to "engine," the motor MG1 corresponds to "generator," the battery 50 corresponds to "energy storage device," and the HVECU 70, engine ECU 24, and motor ECU 40 correspond to "control device." The hybrid vehicle 20 (HVECU 70) and the mobile terminal 120 (power supply mode setting application 130) correspond to the "power supply mode setting system."
[0076] Furthermore, the correspondence between the main elements of the embodiment and the main elements of the invention described in the section on means for solving the problem is merely an example to specifically explain the form in which the embodiment implements the invention described in the section on means for solving the problem, and does not limit the elements of the invention described in the section on means for solving the problem. In other words, the interpretation of the invention described in the section on means for solving the problem should be based on the description in that section, and the embodiment is merely one specific example of the invention described in the section on means for solving the problem.
[0077] The above describes the forms for implementing this disclosure using embodiments, but this disclosure is not limited in any way to these embodiments, and can of course be implemented in various forms without departing from the gist of this disclosure. [Industrial applicability]
[0078] This disclosure can be used in industries such as the hybrid vehicle manufacturing industry. [Explanation of symbols]
[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 Drive shaft, 38 Differential gear, 39a, 39b Drive wheels, 40 Motor ECU, 41, 42, IV Inverter, 43, 44 Rotation position sensor, 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 Main unit, 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-car camera, 89 Exterior 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 Motor, TM Stepped transmission.
Claims
1. A hybrid vehicle comprising an engine that outputs power using fuel from a fuel tank, a generator that generates electricity using power from the engine, an energy storage device connected to the power line together with the generator, and a control device, When the user desires external power supply from the vehicle to the outside, the control device presents the user with a plurality of power supply modes, each with different power supply characteristics, and when the user selects one of the plurality of power supply modes, it performs the external power supply using the power supply mode selected by the user. The aforementioned multiple power supply modes include, as predetermined power supply modes in which the engine is operated and the generator generates power when at least the charge storage ratio of the energy storage device is less than a predetermined ratio during the external power supply, 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 is When the current time is within a predetermined time period, set the recommended power supply mode to the first power supply mode. When the current time is not within the predetermined time period and the amount of fuel in the fuel tank is equal to or greater than a predetermined amount, the recommended power supply mode is set to the second power supply mode. When the current time is not within the predetermined time period and the amount of fuel is less than the predetermined amount, the recommended power supply mode is set to the third power supply mode. The recommended power supply mode is included among the multiple power supply modes and presented to the user. Hybrid vehicle.
2. A hybrid vehicle according to claim 1, The aforementioned multiple power supply modes include, as predetermined power supply modes for operating the engine and generating power with the generator, at least two of the following: a first power supply mode that prioritizes noise reduction, a second power supply mode that prioritizes power supply performance, and a third power supply mode that prioritizes fuel efficiency. Hybrid vehicle.
3. A hybrid vehicle according to claim 2, The predetermined power supply mode is a mode in which, when the power supply from the external source is performed, the engine is operated and the generator generates power when the power storage device's charge level is less than a predetermined percentage. Hybrid vehicle.
4. A hybrid vehicle according to claim 1, The control device presents the recommended power supply mode and other power supply modes to the user in different ways. Hybrid vehicle.
5. A hybrid vehicle according to claim 1, The control device is When the current time is within the predetermined time period, When the vehicle is currently located in a residential area, the recommended power supply mode is set to the first power supply mode. Set the code, When the vehicle's current location is outside the residential area, the recommended power supply mode is set to either the second power supply mode or the third power supply mode based on the amount of fuel. Hybrid vehicle.
6. A hybrid vehicle according to claim 2 or 5, 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 a more efficient operating point compared to the first and second power supply modes. Hybrid vehicle.
7. 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 power from the engine, and a power storage device connected to a power line together with the generator, When a user requests external power supply from the vehicle to an external device, the system presents the user with multiple power supply modes, each with different power supply characteristics. When the user selects one of these modes, the system performs the external power supply using the selected mode. The aforementioned multiple power supply modes include, as predetermined power supply modes in which the engine is operated and the generator generates power when at least the charge storage ratio of the energy storage device is less than a predetermined ratio during the external power supply, 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 method described above is When the current time is within a predetermined time period, set the recommended power supply mode to the first power supply mode. When the current time is not within the predetermined time period and the amount of fuel in the fuel tank is equal to or greater than a predetermined amount, the recommended power supply mode is set to the second power supply mode. When the current time is not within the predetermined time period and the amount of fuel is less than the predetermined amount, the recommended power supply mode is set to the third power supply mode. The recommended power supply mode is included among the multiple power supply modes and presented to the user. Control methods for hybrid vehicles.
8. A power supply mode setting system used for setting a power supply mode when the user desires external power supply from the vehicle to the outside of the vehicle, in a hybrid vehicle comprising 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 a power line together with the generator, and a control device, The system presents the user with a plurality of power supply modes, each having different power supply characteristics, and when the user selects one of the plurality of power supply modes, the system causes the vehicle to perform the external power supply using the power supply mode selected by the user. The aforementioned multiple power supply modes include, as predetermined power supply modes in which the engine is operated and the generator generates power when at least the charge storage ratio of the energy storage device is less than a predetermined ratio during the external power supply, 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 power supply mode setting system is When the current time is within a predetermined time period, set the recommended power supply mode to the first power supply mode. When the current time is not within the predetermined time period and the amount of fuel in the fuel tank is equal to or greater than a predetermined amount, the recommended power supply mode is set to the second power supply mode. When the current time is not within the predetermined time period and the amount of fuel is less than the predetermined amount, the recommended power supply mode is set to the third power supply mode. The recommended power supply mode is included among the multiple power supply modes and presented to the user. Power supply mode setting system.
9. A power supply mode setting method used for setting a power supply mode when the user desires external power supply from the vehicle to the outside of the vehicle, in a hybrid vehicle comprising 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 a power line together with the generator, and a control device, The system presents the user with a plurality of power supply modes, each having different power supply characteristics, and when the user selects one of the plurality of power supply modes, the system causes the vehicle to perform the external power supply using the power supply mode selected by the user. The aforementioned multiple power supply modes include, as predetermined power supply modes in which the engine is operated and the generator generates power when at least the charge storage ratio of the energy storage device is less than a predetermined ratio during the external power supply, 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 power supply mode setting method is as follows: When the current time is within a predetermined time period, set the recommended power supply mode to the first power supply mode. When the current time is not within the predetermined time period and the amount of fuel in the fuel tank is equal to or greater than a predetermined amount, the recommended power supply mode is set to the second power supply mode. When the current time is not within the predetermined time period and the amount of fuel is less than the predetermined amount, the recommended power supply mode is set to the third power supply mode. The recommended power supply mode is included among the multiple power supply modes and presented to the user. How to set the power supply mode.