JP4682389B2 - Output device and power output device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an output device and a power output device, and more particularly to an output device having a fuel cell as one of output sources and a power output device having an electric motor that outputs power using a fuel cell and a secondary battery as output sources. .
[0002]
[Prior art]
Conventionally, this type of output device is a device mounted on a vehicle, and the actual output is limited by the fuel cell output possible at that time based on the required output obtained from the position of the accelerator pedal. Has been proposed (for example, JP-A-7-75214). In this device, the operation condition of the fuel cell is changed based on the required output, and the required output is controlled to be output from the fuel cell. When the possible output amount of the fuel cell is less than the required output, the actual output is limited to the possible output amount, thereby preventing the fuel cell from being damaged.
[0003]
[Problems to be solved by the invention]
However, such an apparatus may give the operator a feeling of strangeness in operation. When the operator's required output is larger than the fuel cell output possible amount, the actual output is limited by the fuel cell output possible amount, and thus the operator feels that the actual output is different from the requested output. In this case, the operator checks whether the output device has an abnormality and does not output as requested, or whether the output device is not abnormal but the fuel cell does not reach a steady operation state and does not output as requested. Judgment must be made based on experience. If the operator uses the same output device regularly, these decisions can also be made appropriately, but if the operator uses the output device irregularly, it is difficult to make an appropriate decision. .
[0004]
The output device and the power output device of the present invention are intended to inform the operator of the output possible amount of the device. Another object of the output device and power output device of the present invention is to inform the operator of the output possible amount of the device in relation to the maximum output amount. Furthermore, it is an object of the output device and the power output device of the present invention to inform the operator of the output amount output from the device in association with the output possible amount and the maximum output amount. Another object of the power output apparatus of the present invention is to inform the operator of the output flow in the apparatus in association with the output possible amount.
[0005]
[Means for solving the problems and their functions and effects]
The output device and power output device of the present invention employ the following means in order to achieve at least a part of the above-described object.
[0006]
  The output device of the present invention is
  An output device having a fuel cell as one of output sources,
  Fuel cell state detection means for detecting the state of the fuel cell;
  A fuel cell output possible amount calculating means for calculating a fuel cell output possible amount that can be output from the fuel cell based on the detected state of the fuel cell;
  Display means for displaying the calculated fuel cell output possible amount;
  With,
  The display means is means for displaying the fuel cell output possible amount in relation to the maximum output amount of the fuel cell.This is the gist.
[0007]
  In the output device of the present invention, the fuel cell output possible amount calculating means calculates the fuel cell output possible amount that can be output from the fuel cell based on the state of the fuel cell detected by the fuel cell state detecting means, and the display means The calculated fuel cell output possible amount is displayed. The operator can appropriately determine the state of the fuel cell based on the fuel cell output possible amount displayed on the display means.Further, the operator can know the fuel cell output possible amount in relation to the maximum output amount of the fuel cell. Here, the “maximum output amount of the fuel cell” means the maximum output amount as the rated value of the fuel cell.
[0008]
In such an output device of the present invention, the fuel cell state detecting means may be means for detecting the operating temperature of the fuel cell as one of the states of the fuel cell.
[0010]
The output device of the present invention further comprises fuel cell output amount detection means for detecting the fuel cell output amount output from the fuel cell, wherein the display means is a fuel cell detected by the fuel cell output amount detection means. It may be a means for displaying the output amount. In this way, the operator can grasp the fuel cell output amount currently output from the fuel cell. In the output device of the present invention of this aspect, the display means may be means for displaying the detected fuel cell output amount in association with the calculated fuel cell output possible amount. By doing so, the operator can know the fuel cell output amount currently output from the fuel cell in relation to the fuel cell output possible amount.
[0011]
Alternatively, in the output device of the present invention, a secondary battery that can be charged / discharged, secondary battery state detection means for detecting the state of the secondary battery, and the secondary battery based on the detected state of the secondary battery Secondary battery output possible amount calculating means for calculating the secondary battery output possible amount that can be output from the battery, and the display means displays the secondary battery output possible amount calculated by the secondary battery output possible amount calculating means. It can also be a means to do. By doing so, the operator can know the fuel cell output possible amount and the secondary battery output possible amount.
[0012]
In the output device of the present invention having a secondary battery, the display means may be a means for displaying the secondary battery output possible amount in association with the maximum output amount of the secondary battery. . By doing so, the operator can know the secondary battery output possible amount in relation to the maximum output amount of the secondary battery.
[0013]
Further, in the output device of the present invention having a secondary battery, the display means is means for displaying the calculated fuel cell output possible amount and the secondary battery output possible amount in a continuous display. It can also be. By doing so, the operator can integrally know the fuel cell output possible amount and the secondary battery output possible amount as a continuous display. As a result, the output possible amount as a whole can be easily grasped. In this aspect of the output device of the present invention, the display means is calculated in relation to a device maximum output amount comprising a sum of the maximum output amount of the fuel cell and the maximum output amount of the secondary battery. It may be a means for displaying the fuel cell output possible amount and the secondary battery output possible amount. By doing so, the operator can know the sum of the fuel cell output possible amount and the secondary battery output possible amount as the overall output amount in relation to the device maximum output amount. As a result, the operator can appropriately determine the state of the apparatus.
[0014]
Further, in the output device of the present invention including a secondary battery, the output device further includes a secondary battery output amount detecting means for detecting a secondary battery output amount output from the secondary battery, and the display means includes the second battery. It can also be a means for displaying the secondary battery output amount detected by the secondary battery output amount detection means. In this way, the operator can know the amount of secondary battery output currently output from the secondary battery. In this aspect of the output device of the present invention, the display means may be means for displaying the detected secondary battery output amount in association with the calculated secondary battery output possible amount. . In this way, the operator can know the secondary battery output amount currently output from the secondary battery in relation to the secondary battery output possible amount.
[0015]
In the output device of the present invention comprising a fuel cell output amount detection means and a secondary battery output amount detection means, the display means is a sum of the maximum output amount of the fuel cell and the maximum output amount of the secondary battery. The calculated fuel cell output possible amount and the secondary battery output possible amount are displayed in a continuous display in relation to the device maximum output amount, and the detection is related to the displayed continuous display. The fuel cell output amount and the secondary battery output amount may be displayed in a continuous display. In this way, the operator can know the fuel cell output possible amount and the secondary battery output possible amount as an integral one in relation to the device maximum output amount, and the current output from the fuel cell or secondary battery. The fuel cell output amount and the secondary battery output amount can be known as an integrated relationship in relation to the fuel cell output possible amount and the secondary battery output possible amount displayed as a continuous display. That is, the operator can instantly grasp the overall maximum output amount, possible output amount, and current output amount.
[0016]
The power output apparatus of the present invention is
A power output device comprising a fuel cell, a secondary battery capable of charging the output from the fuel cell, and an electric motor that outputs power using the fuel cell and the secondary battery as output sources,
A fuel cell output possible amount detecting means for detecting a fuel cell output possible amount that can be output from the fuel cell;
Fuel cell output amount detecting means for detecting the fuel cell output amount output from the fuel cell;
A secondary battery output possible amount calculating means for detecting a secondary battery output possible amount that can be output from the secondary battery;
Charge / discharge amount detection means for detecting the charge / discharge amount of the secondary battery;
Output flow calculation means for calculating the flow of output from the detected fuel cell output amount and the detected charge / discharge amount of the secondary battery;
Display means for displaying the calculated output flow in relation to the detected fuel cell output possible amount and the detected secondary battery output possible amount;
It is a summary to provide.
[0017]
In the power output apparatus of the present invention, the output flow calculation means includes the fuel cell output amount output from the fuel cell detected by the fuel cell output amount detection means and the secondary battery detected by the charge / discharge amount detection means. The output flow is calculated from the charge / discharge amount, and the display means outputs the calculated output flow from the fuel cell detected by the fuel cell output possible quantity detection means and the secondary output of the fuel cell. Displayed in relation to the secondary battery output possible amount that can be output from the secondary battery detected by the output possible amount detection means. According to the power output apparatus of the present invention, the operator can know the output flow in relation to the output possible amount of the fuel cell or the secondary battery. As a result, the operator can grasp the state of the power output apparatus.
[0018]
In such a power output apparatus of the present invention, the output flow calculation means includes a first output amount as an output amount from the fuel cell to the electric motor, and a second output amount as an output amount from the secondary battery to the electric motor. The display means is a schematic diagram showing the fuel cell, the secondary battery, and the electric motor, an arrow indicating the flow of output between the schematic diagrams, the first output amount, and the fuel. A first output amount relationship schematic diagram schematically showing the relationship with the battery output possible amount in relation to the arrow, and a relationship between the second output amount and the secondary battery output possible amount in association with the arrow. It can also be a means for displaying a second output quantity relationship schematic diagram. In this way, the operator can grasp the state and output status of the power output device instantly.
[0019]
Further, in the aspect in which the power output device of the present invention is mounted on a vehicle, the required output detecting means for detecting the required output of the operator, and the detected required output is determined from the detected fuel cell output possible amount and the secondary output. The electric motor is controlled based on the required output when the total output possible amount is equal to or less than the total possible battery output amount, and when the required output is larger than the total output possible amount, the required output is set to the total output possible amount. It may be replaced with electric motor control means for controlling the electric motor. In this way, the operator can determine whether the required output is output from the electric motor according to the output possible amount of the fuel cell or the secondary battery. As a result, even if the actual output is smaller than the requested output when the requested output is larger than the total possible output amount, the operational discomfort given to the operator can be reduced.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described using examples. FIG. 1 is a configuration diagram showing an outline of a configuration of a power output apparatus 20 which is an embodiment of the present invention mounted on a vehicle. The power output apparatus 20 according to the embodiment includes a fuel cell 30 that generates electricity by an electrochemical reaction using supplied fuel, a chargeable / dischargeable battery 40, and power supply from the fuel cell 30 and the battery 40, as shown in the figure. And a motor 50 for receiving and driving, and an electronic control unit 60 for controlling the entire apparatus.
[0021]
The fuel cell 30 is configured, for example, as a solid polymer fuel cell that generates power using hydrogen and oxygen as fuel, and its operation is controlled by a fuel cell electronic control unit (not shown). The fuel cell 30 includes a temperature sensor 34 for detecting the temperature T, a pressure sensor 35 for detecting a supply gas pressure of a hydrogen-containing gas containing hydrogen as a fuel or an oxygen-containing gas (for example, air) containing oxygen. Is attached. An output control circuit 38 that controls the output voltage from the fuel cell 30 is connected to the output terminal of the fuel cell 30. The output terminal of the fuel cell 30 is also provided with a voltage sensor 32 for detecting the inter-terminal voltage Vf and a current sensor 33 for detecting the output current If.
[0022]
A charge / discharge control circuit 48 that controls charging / discharging of the battery 40 by adjusting a voltage between the output terminals is connected to the output terminal of the battery 40. The output terminal of the battery 40 is also provided with a voltage sensor 42 that detects the voltage Vb between the terminals and a current sensor 43 that detects the charge / discharge current Ib of the battery 40. The charge / discharge control circuit 48 is connected to the output control circuit 38 by a power line 39 so that the battery 40 can be charged by the power generated by the fuel cell 30.
[0023]
The motor 50 is configured as a motor generator that can also operate as a generator, and a rotating shaft (not shown) is mechanically connected to a drive shaft of the vehicle. Therefore, the output from the motor 50 is transmitted directly or indirectly to the drive shaft of the vehicle and used as a drive force. Further, when the vehicle is braked, the rotational energy transmitted through the drive shaft can be regenerated by the motor 50. The motor 50 is connected to the power line 39 via an inverter circuit 58 that controls the power running and regeneration of the motor 50, and is driven by the power generated by the fuel cell 30 or the power discharged from the battery 40, or the regeneration. The battery 40 can be charged with the generated power.
[0024]
The electronic control unit 60 is configured as a microprocessor having a CPU 62 as a center, and includes a ROM 63 that stores a processing program, a RAM 64 that temporarily stores data, and an input / output port (not shown). . The electronic control unit 60 includes a voltage Vf between the terminals of the fuel cell 30 from the voltage sensor 32, an output current If of the fuel cell 30 from the current sensor 33, a temperature T of the fuel cell 30 from the temperature sensor 34, and a pressure sensor 35. The supply gas pressure of the hydrogen-containing gas or oxygen-containing gas from the battery, the voltage Vb between the terminals of the battery 40 from the voltage sensor 42, the charge / discharge current Ib of the battery 40 from the current sensor 43, and the vehicle speed sensor 66 attached to the vehicle. A vehicle speed Vv, an accelerator pedal position AP as an amount of depression of an accelerator pedal from an accelerator pedal position sensor 68 provided on the accelerator pedal, and the like are input via an input port. Further, from the electronic control unit 60, a control signal to the output control circuit 38, the charge / discharge control circuit 48, the inverter circuit 58, a drive signal to the display 70 mounted in front of the driver's seat of the vehicle, and the like are output via the output port. Is output.
[0025]
FIG. 2 is an explanatory diagram illustrating an example of the output state image 72 displayed on the display 70. The output state image 72 can be currently output from the fuel cell 30 as determined from the state of the fuel cell 30 with the sum of the maximum output as the rated value of the fuel cell 30 and the maximum output as the rated value of the battery 40 being 100%. A region 73 indicating a fuel cell output possible amount Qf1 as an output amount, a region 74 indicating a battery output possible amount Qb1 as an output amount that can be output from the battery 40 based on the state of the battery 40, and a fuel cell actually 30 includes a region 75 indicating the sum of the fuel cell output amount Qf2 as the output amount output from 30 and the battery charge / discharge amount Qb2 as the amount of power discharged from the battery 40. The region 74 is displayed continuously with respect to the region 73. If the region 73 and the region 74 are viewed as an integral unit, the total output possible amount that can be output from the power output device 20 is as follows. Become. In addition, the region 75 is displayed so as to overlap a part of the region 73 and the region 74 as illustrated. The display control of the output state image 72 will be described later.
[0026]
FIG. 3 is an explanatory diagram illustrating an example of the output flow image 80 displayed on the display 70. The output flow image 80 includes an FC image 81 schematically showing the fuel cell 30, a battery image 82 schematically showing the battery 40, a motor image 83 schematically showing the motor 50, and an output direction between the images. Output arrow image 84, output meters 85 and 86, and a charging power image 87 for displaying charging power from the fuel cell 30 to the battery 40. The output meter 85 displays the current fuel cell output possible amount Qf1 and the fuel cell output amount Qf2 of the fuel cell 30 with two hands. Further, the output meter 86 is configured to display the current battery output possible amount Qb1 and the battery charge / discharge amount Qb2 of the battery 40 with two hands. The display control of the output meters 85 and 86 and the display control of the output arrow image 84 will be described later.
[0027]
Next, display on the display 70 in the power output apparatus 20 of the embodiment configured as described above will be described. FIG. 4 is a flowchart illustrating an example of a display processing routine executed by the electronic control unit 60 of the power output apparatus 20 according to the embodiment. This routine is repeatedly executed every predetermined time (for example, every 20 msec) after the ignition key of the vehicle is turned on.
[0028]
When the display processing routine is executed, the CPU 62 of the electronic control unit 60 firstly detects the temperature T of the fuel cell 30 detected by the temperature sensor 34 and the inter-terminal voltage Vf of the fuel cell 30 detected by the voltage sensor 32. Then, a process of reading the output current If of the fuel cell 30 detected by the current sensor 33 is executed (step S100). And the process which calculates the fuel cell output possible quantity Qf1 based on the temperature T of the read fuel cell 30 is performed (step S102). Since the operating state of the fuel cell 30 is reflected in the temperature T, the fuel cell output possible amount Qf1 can be obtained based on the temperature T. In the embodiment, the relationship between the temperature T of the fuel cell 30 and the fuel cell output possible amount Qf1 is obtained in advance by experiments or the like and stored as a map in the ROM 63. When the temperature T of the fuel cell 30 is given, the temperature is calculated from the map. The fuel cell output possible amount Qf1 corresponding to T is derived. FIG. 5 shows a map showing an example of the relationship between the temperature T of the fuel cell 30 and the fuel cell output possible amount Qf1.
[0029]
When the fuel cell output possible amount Qf1 is calculated, a process for calculating the fuel cell output amount Qf2 by multiplying the inter-terminal voltage Vf of the fuel cell 30 and the output current If is performed (step S104). Then, the fuel cell output possible amount Qf1 and the fuel cell output amount Qf2 obtained by the calculation are divided by the maximum output amount Fmax as the rated value of the fuel cell 30, and a process for calculating a ratio to the maximum output amount Fmax is performed ( Step S106).
[0030]
Next, a process of reading the stored amount (SOC) of the battery 40 and reading the inter-terminal voltage Vb of the battery 40 detected by the voltage sensor 42 and the charge / discharge current Ib of the fuel cell 30 detected by the current sensor 43 is executed. (Step S108). In the embodiment, the SOC is obtained by integrating the charge / discharge current Ib detected by the current sensor 43 by an SOC detection routine (not shown), and written in a predetermined address of the RAM 64. Therefore, reading the SOC of the battery 40 in step S106 is a process of accessing a predetermined address in the RAM 64. Then, the process which calculates battery output possible quantity Qb1 based on read SOC is performed (step S110). Since the state of the battery 40 is reflected in the SOC, the battery output possible amount Qb1 can be obtained based on the SOC. In the embodiment, the relationship between the SOC of the battery 40 and the battery output possible amount Qb1 is obtained in advance by experiments or the like and stored as a map in the ROM 63. When the SOC of the battery 40 is given, the battery output corresponding to the SOC from the map is given. The possible amount Qb1 was derived. FIG. 6 shows a map showing an example of the relationship between the SOC of the battery 40 and the battery output possible amount Qb1.
[0031]
When the battery output possible amount Qb1 is calculated, the battery charge / discharge amount Qb2 is calculated by multiplying the inter-terminal voltage Vb of the battery 40 and the charge / discharge current Ib (step S112). In the examples, the sign of the charge / discharge current Ib was positive discharge and negative charge. Therefore, when the value of the battery charge / discharge amount Qb2 is positive, the battery 40 is discharged, and when the value is negative, the battery 40 is charged. Then, the battery output possible amount Qb1 and the battery charge / discharge amount Qb2 obtained by the calculation are divided by the maximum output amount Bmax as the rated value of the battery 40, and the ratio to the maximum output amount Bmax is calculated (step S114). ).
[0032]
Thus, when the ratio of the fuel cell output possible amount Qf1 and the fuel cell output amount Qf2 to the maximum output amount Fmax and the ratio of the battery output possible amount Qb1 and the battery charge / discharge amount Qb2 to the maximum output amount Bmax are obtained, these are used in FIG. Processing to display on the display 70 as the state of the output state image 72 illustrated and the state of the output flow image 80 illustrated in FIG. 3 is performed (step S116). Specifically, the display output of the output state image 72 is obtained by converting the ratio of the fuel cell output possible amount Qf1 to the maximum output amount Fmax into a ratio to the sum of the maximum output amount Fmax and the maximum output amount Bmax, and setting it as the region 73. The ratio of the battery output possible amount Qb1 to the maximum output amount Bmax is converted into a ratio to the sum of the maximum output amount Fmax and the maximum output amount Bmax, and is displayed as a region 74 so as to be continuous with the region 73. The ratio of the output amount Qf2 to the maximum output amount Fmax and the ratio of the battery charge / discharge amount Qb2 to the maximum output amount Bmax are converted into the ratio of the sum of the maximum output amount Fmax and the maximum output amount Bmax, respectively, and are displayed as a region 75. It is. Further, the display output of the output flow image 80, specifically, the output meter 85 displays the fuel cell output possible amount Qf1 and the fuel cell output amount Qf2 as two needles, and the output meter 86 can output the battery. The amount Qb1 and the battery charge / discharge amount Qb2 are displayed as two hands. When the battery charge / discharge amount Qb2 is a negative value, that is, when the battery 40 is in a charged state, the ratio of the battery charge / discharge amount Qb2 to the fuel cell output amount Qf2 is calculated and displayed as a percentage on the charge power image 87, and the FC image An arrow from 81 to the battery image 82 and an arrow from the FC image 81 to the motor image 83 are displayed, and an output arrow image 84 is output so as to delete the arrow from the battery image 82 to the motor image 83. When the battery charge / discharge amount Qb2 is a positive value, that is, when the battery 40 is in a discharged state, an arrow from the battery image 82 to the motor image 83 and an arrow from the FC image 81 to the motor image 83 are displayed and the FC image 81 The output arrow image 84 is output so as to delete the arrow from the battery to the battery image 82.
[0033]
By such display on the display 70, the driver can instantly grasp the state of the fuel cell 30, the state of the battery 40, and the state of the power output device 20 as a whole, and also grasp the current output state instantaneously. be able to. As a result, the driver grasps the output amount possible from the power output device 20 and the operation as a vehicle when the fuel cell 30 is not in a steady operation state just after the power output device 20 is started. Therefore, even if the actual output is small, the uncomfortable feeling in operation given to the driver can be reduced.
[0034]
Next, control of the motor 50 by the power output apparatus 20 of the embodiment will be described. FIG. 7 is a flowchart illustrating an example of a motor control processing routine executed by the electronic control unit 60 of the power output apparatus 20 according to the embodiment. This routine is executed every predetermined time (for example, every 8 msec) immediately after the power output apparatus 20 of the embodiment is started.
[0035]
When the motor control process routine is executed, the CPU 62 of the electronic control unit 60 first executes a process of reading the accelerator pedal position AP detected by the accelerator pedal position sensor 68 and the vehicle speed Vv detected by the vehicle speed sensor 66. (Step S200). And the process which calculates request | requirement torque T * based on the read accelerator pedal position AP is performed (step S202). Since the accelerator pedal position AP, which is the amount of depression of the accelerator pedal, is directly related to the required torque T * requested by the driver, the required torque T * can be obtained from the accelerator pedal position AP. In the embodiment, the relationship between the accelerator pedal position AP and the required torque T * is stored in advance in the ROM 63 as a map, and when the accelerator pedal position AP is given, the required torque T corresponding to the accelerator pedal position AP given from the map. * Was derived.
[0036]
Subsequently, a process of calculating the required output Q * based on the required torque T * obtained by the calculation and the read vehicle speed Vv is executed (step S204). Specifically, the required output Q * is calculated by determining the rotational speed of the drive shaft of the vehicle from the vehicle speed Vv and multiplying the determined rotational speed by the required torque T *.
[0037]
Next, a process of reading the fuel cell output possible amount Qf1 and the battery output possible amount Qb1 obtained in the display processing routine illustrated in FIG. 4 is executed (step S206). Although not described in the display processing routine illustrated in FIG. 4, the fuel cell output possible amount Qf1, the fuel cell output amount Qf2, the battery output possible amount Qb1, and the battery charge / discharge amount Qb2 are set to predetermined addresses in the RAM 64 when calculated. In step S206, the fuel cell output possible amount Qf1 and the battery output possible amount Qb1 are read by accessing a predetermined address in the RAM 64.
[0038]
Then, the sum of the read fuel cell output possible amount Qf1 and the battery output possible amount Qb1 is compared with the required output Q * (step S208). When the required output Q * is less than or equal to the sum of the fuel cell output possible amount Qf1 and the battery output possible amount Qb1, the required output Q * is set to the output value Q (step S210), and the fuel cell output possible amount Qf1 and the battery output possible amount are set. When the sum request output Q * with Qb1 is larger than the sum required output Q *, the sum of the fuel cell output possible amount Qf1 and the battery output possible amount Qb1 is set to the output value Q (step S212). Then, the motor 50 is driven and controlled so that the output value Q is output from the motor 50 (step S214). Specifically, the switching of the switching element of the inverter circuit 58 is controlled so that the output from the motor 50 becomes the output value Q.
[0039]
In such motor control processing, when the required output Q * is larger than the sum of the fuel cell output possible amount Qf1 and the battery output possible amount Qb1, this sum is not exceeded so that the fuel cell 30 is damaged or the battery 40 is damaged. Can be prevented.
[0040]
According to the power output device 20 of the embodiment described above, the driver can instantly grasp the state of the fuel cell 30, the state of the battery 40, and the state of the power output device 20 as a whole, and the current output state. Can be grasped instantly. As a result, the driver grasps the output amount possible from the power output device 20 and the operation as a vehicle when the fuel cell 30 is not in a steady operation state just after the power output device 20 is started. Therefore, even if the actual output is small, the uncomfortable feeling in operation given to the driver can be reduced. Even when the driver's requested output Q * is larger than the sum of the fuel cell output possible amount Qf1 and the battery output possible amount Qb1, the output from the actual motor 50 is limited to this sum, Damage to the battery 40 can be prevented.
[0041]
In the power output apparatus 20 of the embodiment, the fuel cell output possible amount Qf1 and the battery output possible amount Qb1 are displayed using the output state image 72 illustrated in FIG. An image that displays the fuel cell output possible amount Qf1 with the maximum output amount Fmax as 100% and an image that displays the battery output possible amount Qb1 with the maximum output amount Bmax of the battery 40 as 100% may be displayed separately. In this case, each image may be displayed by superimposing the fuel cell output amount Qf2 and the battery charge / discharge amount Qb2.
[0042]
In the power output apparatus 20 according to the embodiment, the output state image 72 illustrated in FIG. 2 is displayed so that the fuel cell output possible amount Qf1 and the battery output possible amount Qb1 can be distinguished, but the fuel cell output possible amount Qf1 The battery charge / discharge amount Qb2 may be displayed as an integral unit that cannot be distinguished. Further, in the power output apparatus 20 of the embodiment, the fuel cell output amount Qf2 and the battery charge / discharge amount Qb2 are displayed as an integral one using the output state image 72 illustrated in FIG. You may display so that Qf2 and battery charge / discharge amount Qb2 can be distinguished.
[0043]
In the power output apparatus 20 of the embodiment, the fuel cell output possible amount Qf1 and the battery output possible amount Qb1 are displayed, but only the fuel cell output possible amount Qf1 may be displayed. In this case, not only the fuel cell output possible amount Qf1 is displayed as a percentage, but the indicator may be turned on when the fuel cell output possible amount Qf1 is less than a predetermined ratio with respect to the maximum output amount Fmax.
[0044]
In the power output apparatus 20 of the embodiment, the fuel cell output possible amount Qf1 is calculated based on the temperature T of the fuel cell 30, but the supply gas pressure of fuel to the fuel cell 30 and the temperature of cooling water are taken into consideration. Then, the fuel cell output possible amount Qf1 may be obtained.
[0045]
The embodiments of the present invention have been described using the embodiments. However, the present invention is not limited to these embodiments, and can be implemented in various forms without departing from the gist of the present invention. Of course you get.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an outline of a configuration of a power output apparatus 20 according to an embodiment of the present invention mounted on a vehicle.
FIG. 2 is an explanatory diagram showing an example of an output state image 72 displayed on the display 70. FIG.
3 is an explanatory diagram showing an example of an output flow image 80 displayed on the display 70. FIG.
FIG. 4 is a flowchart illustrating an example of a display processing routine executed by the electronic control unit 60 of the power output apparatus 20 according to the embodiment.
FIG. 5 is a map showing an example of the relationship between the temperature T of the fuel cell 30 and the fuel cell output possible amount Qf1.
FIG. 6 is a map showing an example of the relationship between the SOC of battery 40 and battery output possible amount Qb1.
FIG. 7 is a flowchart illustrating an example of a motor control processing routine executed by the electronic control unit 60 of the power output apparatus 20 according to the embodiment.
[Explanation of symbols]
20 Power Output Device, 30 Fuel Cell, 32 Voltage Sensor, 33 Current Sensor, 34 Temperature Sensor, 35 Pressure Sensor, 38 Output Control Circuit, 39 Power Line, 40 Battery, 42 Voltage Sensor, 43 Current Sensor, 48 Charge / Discharge Control Circuit , 50 motor, 58 inverter circuit, 60 electronic control unit, 62 CPU, 63 ROM, 64 RAM, 66 vehicle speed sensor, 68 accelerator pedal position sensor, 72 output state image, 73, 74, 75 area, 80 output flow image, 81 FC image, 82 battery image, 83 motor image, 84 output arrow image, 85,86 output meter, 87 charge power image.

Claims (14)

An output device having a fuel cell as one of output sources,
Fuel cell state detection means for detecting the state of the fuel cell;
A fuel cell output possible amount calculating means for calculating a fuel cell output possible amount that can be output from the fuel cell based on the detected state of the fuel cell;
Display means for displaying the calculated fuel cell output possible amount ,
The display means, the output device means Ru der for displaying the fuel cell output can amount associated with the maximum output of the fuel cell.   2. The output device according to claim 1, wherein the fuel cell state detecting means is means for detecting an operating temperature of the fuel cell as one of the states of the fuel cell. The output device according to claim 1 or 2 ,
A fuel cell output amount detecting means for detecting a fuel cell output amount output from the fuel cell;
The output means is a means for displaying a fuel cell output amount detected by the fuel cell output amount detection means. 4. The output device according to claim 3 , wherein the display means is means for displaying the detected fuel cell output amount in association with the calculated fuel cell output possible amount. The output device according to any one of claims 1 to 4 ,
A rechargeable secondary battery;
Secondary battery state detection means for detecting the state of the secondary battery;
A secondary battery output possible amount calculating means for calculating a secondary battery output possible amount that can be output from the secondary battery based on the detected state of the secondary battery, and
The output means is a means for displaying a secondary battery output possible amount calculated by the secondary battery output possible amount calculation means. The output device according to claim 5 , wherein the display means is a means for displaying the secondary battery output possible amount in association with the maximum output amount of the secondary battery. The output device according to claim 5 or 6 , wherein the display means is means for displaying the calculated fuel cell output possible amount and secondary battery output possible amount in a continuous display. The display means calculates the fuel cell output possible amount and the secondary battery output possible amount in relation to the device maximum output amount that is the sum of the maximum output amount of the fuel cell and the maximum output amount of the secondary battery. 8. The output device according to claim 7 , wherein the output device is means for displaying. The output device according to any one of claims 5 to 8 ,
A secondary battery output amount detecting means for detecting a secondary battery output amount output from the secondary battery;
The output unit is a unit that displays a secondary battery output amount detected by the secondary battery output amount detection unit. The output device according to claim 9 , wherein the display means is a means for displaying the detected secondary battery output amount in association with the calculated amount of secondary battery output. The display means calculates the fuel cell output possible amount and the secondary battery output possible amount in relation to the device maximum output amount that is the sum of the maximum output amount of the fuel cell and the maximum output amount of the secondary battery. And a means for displaying the detected fuel cell output amount and secondary battery output amount in a continuous display in relation to the displayed continuous display. The output device according to claim 9 according to claim 3 . A power output device comprising a fuel cell, a secondary battery capable of charging the output from the fuel cell, and an electric motor that outputs power using the fuel cell and the secondary battery as output sources,
A fuel cell output possible amount detecting means for detecting a fuel cell output possible amount that can be output from the fuel cell;
Fuel cell output amount detecting means for detecting the fuel cell output amount output from the fuel cell;
A secondary battery output possible amount calculating means for detecting a secondary battery output possible amount that can be output from the secondary battery;
Charge / discharge amount detection means for detecting the charge / discharge amount of the secondary battery;
Output flow calculation means for calculating the flow of output from the detected fuel cell output amount and the detected charge / discharge amount of the secondary battery;
A power output device comprising: display means for displaying the calculated output flow in association with the detected fuel cell output possible amount and the detected secondary battery output possible amount. A power output apparatus according to claim 1 wherein,
The output flow calculation means is means for calculating a first output amount as an output amount from the fuel cell to the electric motor and a second output amount as an output amount from the secondary battery to the electric motor,
The display means includes a schematic diagram showing the fuel cell, the secondary battery, and the electric motor, an arrow indicating the flow of the output between the schematic diagrams, the first output amount, and the fuel cell output possible amount. The first output amount relationship schematic diagram schematically showing the relationship with the arrow, and the relationship between the second output amount and the secondary battery output possible amount schematically showing the arrow. A power output device that is a means for displaying a second output quantity relationship schematic diagram. A power output apparatus according to claim 1 2 or 1 3, wherein mounted on the vehicle,
Request output detection means for detecting the operator's request output;
When the detected required output is equal to or less than a total output possible amount that is the sum of the detected fuel cell output possible amount and a secondary battery output possible amount, the motor is controlled based on the required output, and the required output A power output device comprising: motor control means for controlling the electric motor by replacing the required output with the total output possible amount when the output is larger than the total output possible amount.

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