JP5535789B2 - Display device for hybrid vehicle - Google Patents

Description

  The present invention relates to a display device for a hybrid vehicle mounted on a hybrid vehicle including a plurality of power machines such as a motor and an engine.

  A hybrid vehicle includes a plurality of power machines such as a motor and an engine that are operated by an energy source such as a battery and fossil fuel (gasoline, light oil, and the like), and is a vehicle that travels by driving power generated by the plurality of power machines. is there. In such a hybrid vehicle, depending on the remaining amount of battery for driving (remaining amount of electricity stored), remaining amount of gasoline (remaining amount of fuel), driving mode, etc., only the motor, only the engine, or both the motor and engine Since the traveling power is obtained, a display device is installed to allow the occupant to recognize how much traveling power is currently being output from which power machine.

  For example, as shown in FIG. 7, the display device 710 presented in Patent Document 1 includes a power meter 720 and an E / M power meter 730. The power meter 720 includes an output amount of traveling power currently output by the motor (current output amount of electric power), an output amount of traveling power currently output by the engine (current output amount of engine power), and It is a pointer meter that displays a total value obtained by adding,. The E / M power meter 730 is a graph meter that displays an arc-shaped bar graph 732 along the outer edges of the arc-shaped indexes 721a and 721c (characters and scales) provided on the power meter 720. Reference numeral 732 denotes an arcuate display portion 733 whose length is determined according to the current output amount of the electric power, which is color-coded, and an arc shape whose length is determined according to the current output amount of the engine power. The display portion 734 is connected to each other.

  The power meter 720 and the E / M power meter 730 are both configured to display based on the common indexes 721a and 721c, and the display of the power meter 720 and the display of the E / M power meter 730 are different. Configured to be parallel. For this reason, the power meter 720 and the E / M power meter 730 display so that the tip of the pointer 722 matches the tip of the bar graph 732.

  According to such a display device 710, the power meter 720 displays the total value of the current output amount of the driving power in the motor and the engine, and at the same time, the E / M power meter 730 occupies the total value of the current output amount. Since the current output amount of travel power in the motor and engine is displayed, it is possible for the driver to recognize how much power is being output in the motor and engine, thereby recognizing the travel state of the hybrid vehicle. I was able to.

JP 2007-237970 A

  In the hybrid vehicle as described above, the maximum value of the driving power is output when the driving power is obtained from both the motor and the engine. For example, the remaining power amount is low or zero. The maximum value of the driving power cannot be output when the driving power cannot be sufficiently obtained from the motor, or when the driving power cannot be obtained from the engine because the remaining fuel amount becomes zero. There is a time. And only the output amount (current output amount) of the traveling power currently output from each power machine displayed on the display device of Patent Document 1 or the total value thereof, how much traveling power is further increased at that time. Since it is not possible to know whether it can be additionally output, for example, when the driving power cannot be obtained sufficiently from the motor, the driver tries to output the maximum value of the driving power without noticing that fact. If you depress the accelerator, you will not be able to get the expected acceleration because the driver's driving power will not be output, resulting in a sense of incongruity in driving and the need for acceleration such as overtaking or joining a highway There was a problem that could cause danger. There was a similar problem when the remaining fuel level became zero.

  The present invention aims to solve the above problems. That is, an object of the present invention is to provide a display device for a hybrid vehicle that can grasp the power for traveling that can be additionally output.

  In order to achieve the above object, the invention described in claim 1 is a display device for a hybrid vehicle mounted on a hybrid vehicle driven by traveling power generated by a plurality of power machines, in the plurality of power machines. A first indicator that displays a total value of the current output amount of the traveling power; and a second indicator that displays a total value of the output possible amount of the traveling power in the plurality of power machines. This is a display device for a hybrid vehicle.

  The invention described in claim 2 is the invention described in claim 1, further comprising an indicator unit provided with an indicator that indicates the current output amount and the output possible amount in common, and the first indicator is A first instructing unit for instructing the index according to the total value of the current output amount; and the second display unit has a second instructing unit for instructing the index according to the total value of the output possible amount. It is characterized by that.

  The invention described in claim 3 is the invention described in claim 2, wherein the indicator portion is a dial plate in which the indicator is provided in an arc shape, and the first indicator portion is a pointer portion; A pointer drive unit that rotates the pointer unit about an arc center of the index so that the pointer unit indicates the index corresponding to the total value of the current output amount, and the second indicating unit includes A graphic display unit arranged in parallel with the index to display an arc-shaped figure whose length is determined so as to indicate the index according to the total value of the output possible amount at the tip. It is characterized by that.

  According to a fourth aspect of the present invention, in the invention according to the third aspect, the arc-shaped figure is color-coded with respect to each other, and the length is determined according to the output possible amount in each of the plurality of power machines. A plurality of arc-shaped graphic parts are connected to each other.

  According to the first aspect of the present invention, the first indicator that displays the total value of the output amount of the traveling power currently output from the plurality of power machines (that is, the current output amount), and the plurality of power machines And a second display that displays the total value of the output power of the traveling power that can be output (that is, the output possible amount), so that the current output amount of the traveling power displayed on the first display From the difference value between the total value and the total outputable amount of traveling power displayed on the second display, the traveling power that can be additionally output can be grasped.

  According to a second aspect of the present invention, the indicator unit is provided with an indicator that commonly indicates the current output amount and the output possible amount, and the first indicator is configured to correspond to the total value of the current output amount. Since the second indicator includes a second indicator for instructing the indicator according to the total value of the output possible amount, the first indicator included in the first indicator is provided. And the second indicator included in the second display display the total value of the current output amount and the total value of the output possible amount by instructing a common index. Therefore, the first indicator and the second indicator The distance (interval) between the two indicators indicated by each unit represents the difference value between the total value of the current output amount and the total value of the output possible amount. It can be easily grasped.

  According to the invention described in claim 3, the indicator portion is a dial plate in which the indicator is provided in an arc shape, the first indicating portion is a pointer portion, and the pointer portion is a total value of the current output amount. A pointer driving section that rotates the pointer section about the circular arc center of the index so as to indicate the corresponding index, and a second indicating section is arranged in parallel along the index Since it has a graphic display section that displays an arc-shaped figure whose length is determined so that the index corresponding to the total value is indicated at the tip, the current output amount of driving power is indicated by the pointer section. Indicates the total value, the total value of the output possible amount of driving power is indicated by the arc-shaped figure, so that the index range in which the arc-shaped figure is displayed in parallel can be recognized as the rotatable range of the pointer part, Therefore, it is possible to more easily grasp the driving power that can be output additionally. Rukoto can.

  According to the invention described in claim 4, the arc-shaped figures are color-coded to each other, and the length is determined according to the output possible amount in each of the plurality of power machines. Therefore, it is possible to easily grasp the ratio of the output amount of traveling power in each power machine to the total value of the output amount of traveling power indicated by the arc-shaped figure.

It is a front view of meter ECU which is one embodiment of a display device for hybrid cars of the present invention. It is sectional drawing which follows the KK line | wire of FIG. It is a figure which shows schematic structure of meter ECU of FIG. It is a flowchart which shows an example of the process which concerns on this invention in CPU with which meter ECU of FIG. 1 is provided. (A)-(f) is a figure explaining the example of a display in meter ECU of FIG. It is a figure which shows the modification of meter ECU of FIG. 1, Comprising: (a) is a front view of a structure provided with the 1st indicator and 2nd indicator which perform a bar graph display, (b) is a numerical display. It is a front view of the structure provided with the 1st indicator and 2nd indicator which perform. It is a front view which shows the conventional display apparatus for hybrid vehicles.

  Hereinafter, an embodiment of a display device for a hybrid vehicle according to the present invention will be described.

  First, an example of a hybrid vehicle on which the display device for a hybrid vehicle according to the present invention is mounted will be described.

  As is well known, a hybrid vehicle includes two power sources, a motor and an engine, and a power integration mechanism that integrates (adds) driving power output from these power sources. By this power integration mechanism, each traveling power output from each power source is integrated to obtain an appropriate traveling power.

  For example, the maximum value of the output power of the traveling power that can be output by the engine alone (the outputable amount of the engine) is 70 kW, and the maximum value of the output power of the traveling power that can be output by the motor alone (the possible output amount of the motor) is When it is 70 kW, if it is possible to output the driving power that simply integrates these, the output amount becomes too large compared to the case where each power source is used alone, which may hinder driving. There is. Therefore, even when traveling power is obtained from both the motor and engine by the power integration mechanism, the total value of the output amounts of traveling power output from these power sources is determined in advance so as not to hinder driving. The output amount of the driving power is adjusted so as not to exceed the maximum output possible amount (for example, 100 kW). In addition, the driving power output from the motor is preferentially output in order to improve fuel consumption.

  The engine provided in the hybrid vehicle outputs driving power using fuel (gasoline) supplied from a fuel tank, and the motor outputs driving power using electric power supplied from the driving battery. As for the engine, if the remaining amount of fuel is available, the maximum possible output amount (70 kW) of the unit can be output. However, for the motor, if the remaining amount of power stored in the traveling battery decreases, the voltage decreases and the internal The power that can be taken out decreases due to an increase in resistance or the like, and the maximum output possible amount (70 kW) cannot be output. For this reason, if the remaining power storage amount is low or becomes zero, and the driving power cannot be sufficiently obtained from the motor, the total output possible amount of the driving power is reduced to the maximum output possible amount (100 kW). Disappear. Even if the remaining amount of fuel runs out, the maximum output possible amount is similarly not reached.

  Next, a meter ECU which is an embodiment of a display device for a hybrid vehicle according to the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the meter ECU (indicated by reference numeral 1 in the figure) is a sum total of output amounts of traveling power currently output from the dial plate 2, dial 4, motor and engine. A first indicator 20 for displaying a value (current output amount total value PS), and a second indicator 30 for displaying a total value of output amounts of traveling power that can be output by the motor and the engine (total possible output amount value QS). And type indicator lamps 32 and 33 for displaying the type of the power machine capable of outputting the driving power, and a power down warning lamp 34 indicating the degree of decrease in the total output power possible amount QS of the driving power, They are arranged in front of the driver's seat of the vehicle in a state where they are covered with a front glass (not shown).

  The facing plate 2 is made of a black synthetic resin having a light shielding property and the front shape is formed in a substantially rectangular shape. The facing plate 2 is provided with a circular opening 2a in which the dial 4 is disposed, and an arcuate opening 2b in which the second display 30 is disposed is arranged along the outer edge of the circular opening 2a. Is provided. Further, the facing plate 2 is provided with rectangular rectangular openings 2c and 2d in which the type indicator lamps 32 and 33 are disposed in the vicinity of both ends in the circumferential direction of the arc-shaped opening 2b.

  The dial 4 is a member formed in a substantially disc shape made of, for example, a transparent or translucent synthetic resin. The dial 4 is fitted and arranged inside a circular opening 2 a provided in the facing plate 2. The dial 4 has a light shielding area 41 printed with light shielding ink and a numerical value as a translucent design formed by removing the light shielding ink along the shape of the characters and scales (without printing the light shielding ink). An index 42, a scale index 43, and a unit index 44 are provided.

  The scale indicators 43 are arranged along the outer edge of the dial 4 in an arc shape at equal intervals. Then, the numerical indexes 42 are arranged at equal intervals in an arc shape so that the numerical values sequentially increase from “0” to “12” in the clockwise direction every other index indicator 43. The unit index 44 indicates a unit (kW) of the output amount of the travel amount power, and is arranged in the vicinity of “0” of the numerical index 42. Further, a rectangular opening 4 a having a rectangular shape in which a power down warning lamp 34 is disposed is provided near the center of the dial 4.

  The facing plate 2 and the dial plate 4 are arranged so as to overlap the front side (upper side in FIG. 2) of the case 5 formed in a box shape whose front shape is substantially the same as the outer shape of the facing plate 2. In addition, the wiring board 6 is placed on the back side of the case 5 (the lower side in FIG. 2). The case 5 accommodates a light guide plate 9 that guides light from an illumination light source 61 formed of a light emitting diode disposed on the front surface 6 a of the wiring board 6 and illuminates the dial 4 from the back surface side. The indicators 42, 43 and 44 provided on the dial 4 emit light by the light guided to the light guide plate 9.

  The first indicator 20 includes a rotary inner unit 7 and a pointer member 8.

  As shown in FIG. 2, the rotary inner unit 7 includes a main body 71 and a rotary shaft 72 as a pointer shaft pivotally supported by the main body 71 so as to be input as a drive signal. This is a well-known stepping motor that rotates the rotation shaft 72 in accordance with a pulse signal (number of pulses, etc.). In the rotating inner unit 7, the main body 71 is attached to the back surface 6 b of the wiring board 6 in a state where the rotating shaft 72 penetrates the wiring board 6. Further, the rotation shaft 72 passes through the case 5 and the dial 4 and protrudes from the front side of the dial 4 at its tip. Further, the rotation shaft 72 is arranged at the arc center of the numerical index 42 and the scale index 43.

  The pointer member 8 includes a base portion 81 formed in a flat columnar shape and a rod-shaped needle portion 82 connected so as to extend in the normal direction of the outer peripheral surface of the base portion 81. The center of the base portion 81 of the pointer member 8 is fixed to the tip of the rotating shaft 72 of the rotating inner unit 7, and the needle portion is centered on the rotating shaft as the rotating shaft 72 rotates. 82 is rotated. The needle portion 82 is rotated to indicate a numerical index 42 and a scale index 43 provided on the dial 4, and in cooperation with the numerical index 42 and the scale index 43, the current output amount total value PS is displayed. The pointer member 8 corresponds to the pointer portion in the claims, the rotary inner unit 7 corresponds to the pointer drive portion in the claims, and these constitute the first instruction portion in the claims. .

  The second indicator 30 includes a plurality of light emitting diodes 62, a plurality of accommodating spaces 53, and an arcuate cover 31.

  The plurality of light emitting diodes 62 are, for example, well-known two-color light emitting diodes including both an element that emits blue light and an element that emits green light. The plurality of light-emitting diodes 62 are arranged on the front surface 6a of the wiring board 6 in a circular arc shape at equal intervals corresponding to each scale index 43 from one end to the other end along the outer edge of the arc of the scale index 43. Yes. Alternatively, a blue light-emitting diode having an element that emits blue light and a green light-emitting diode having an element that emits green light are set as one set, that is, two monochromatic light-emitting diodes having different emission colors are set as one set. Instead of two two-color light emitting diodes, they may be used.

  Each of the plurality of storage spaces 53 is a small space having a substantially rectangular tube shape provided in the case 5 and is formed to have the same width as the interval between the scale indexes 43 and connected to each other in the width direction. From the one end to the other end along the outer edge of the arc of the indicator 43, the indicators 43 are arranged in an arc at equal intervals corresponding to the scale indicators 43. Each of the plurality of storage spaces 53 is formed such that when the facing plate 2 is overlapped with the case 5, the opening near the facing plate 2 in each of the plurality of receiving spaces 53 overlaps the arcuate opening 2 b. Yes. That is, the plan view shape in which the plurality of accommodation spaces 53 are continuous and the arcuate opening 2b are provided in the same shape. In addition, when the case 5 is overlaid on the wiring board 6, the plurality of housing spaces 53 and the plurality of light emitting diodes 62 are accommodated so that each of the plurality of light emitting diodes 62 is housed in each of the plurality of housing spaces 53. Is arranged. The accommodation space 53 guides light emitted from the light emitting diode 62 toward the opening near the facing plate 2.

  The arc-shaped cover 31 is formed in the same arc shape as the arc-shaped opening 2b of the facing plate 2 using, for example, a white semi-transparent synthetic resin. The arc-shaped cover 31 is disposed so as to overlap the arc-shaped opening 2 b of the facing plate 2 and the plurality of accommodation spaces 53. The entire back surface of the arc-shaped cover 31 facing the case 5 is subjected to surface treatment for diffusing light, such as embossing. Further, on the surface of the arc-shaped cover 31, dividing lines are drawn at equal intervals according to the scale index 43 and divided into a plurality of sections.

  Since the plurality of light emitting diodes 62 are housed in a plurality of housing spaces 53, for example, the light emitting diodes 62 housed in one housing space are lit in blue and the back surface of the arc-shaped cover 31 is illuminated. Then, the light of the light emitting diode 62 diffuses, and the portion (one section) of the arc-shaped cover 31 superimposed on the accommodation space 53 is displayed uniformly in blue. Similarly, when the light emitting diode 62 is lit in green, it is displayed in green.

  That is, when the light emitting diode 62 accommodated in an arbitrary accommodation space 53 is turned on, a section of the arc-shaped cover 31 corresponding to the light emitting diode 62 is lit (displayed) in blue or green, and when turned off, the section is turned off (erased). Is done. Then, by turning on one or a plurality of sections of the arc-shaped cover 31 in the same color continuously, the amount of travel power that can be output by the motor to the arc-shaped cover 31, that is, the second display 30 (motor output). A first arc-shaped graphic portion G1 having a length corresponding to the possible amount QM), a second arc-shaped graphic portion G2 having a length corresponding to the output amount of driving power that can be output by the engine (engine output possible amount QE), or Both of these are displayed, and the arc-shaped figure portions G1, G2 or both are erased by turning off the section of the arc-shaped cover 31. That is, the plurality of light emitting diodes 62, the plurality of housing spaces 53, and the arc-shaped cover 31 constitute a second indicating unit and a graphic display unit in the claims.

  The first arc-shaped graphic portion G1 is displayed in blue by lighting the light emitting diode 62 in blue, and the second arc-shaped graphic portion G2 is displayed in green by lighting the light emitting diode 62 in green. Further, the arc-shaped graphic G is constituted by the first arc-shaped graphic portion G 1, the second arc-shaped graphic portion G 2, or both, and is displayed on the second display 30.

  The type indicator lamp 32 is a lamp that is lit (displayed) when the driving power can be output by the motor. The classification indicator lamp 32 is fitted and arranged in the rectangular opening 2c formed in the same rectangular plate shape as the rectangular opening 2c of the facing plate 2 using, for example, white semi-transparent synthetic resin. , A type indicator cover 32a and a blue light emitting diode (not shown) that illuminates the type indicator cover 32a from the back side. On the type indicator cover 32a, a letter “MOTOR” indicating a motor is printed with black ink. The type indicator lamp 32 is turned on (displayed) in blue when the blue light emitting diode is turned on, and turned off (erased) when the blue light emitting diode is turned off.

  The type indicator lamp 33 is a lamp that is lit (displayed) when the driving power can be output by the engine. Similar to the above-described classification indicator lamp 32, the classification indicator lamp 33 is formed, for example, into a rectangular plate shape having the same shape as the rectangular opening 2d of the flip-back plate using a white semi-transparent synthetic resin or the like. A type indicator cover 33a, which is fitted in 2d, and a green light emitting diode (not shown) that illuminates the type indicator cover 33a from the back side. The character “ENGINE” indicating the engine is printed in black ink on the type indicator cover 33a. The type indicator lamp 33 is turned on (displayed) in green when the green light emitting diode is turned on, and turned off (erased) when the green light emitting diode is turned off.

  The power-down warning lamp 34 is a lamp that indicates the degree of decrease in the total outputable value QS depending on the display color. The power-down warning lamp 34 is fitted into the rectangular opening 4a formed in the same rectangular plate shape as the rectangular opening 4a of the dial plate 4 using, for example, white semi-transparent synthetic resin. And a three-color light emitting diode (not shown) that illuminates the warning light cover 34a from the back side. This three-color light emitting diode includes elements that emit red, green, and blue light, and emits light in blue, yellow, purple, and red colors by lighting them alone or in combination. Alternatively, a red light-emitting diode having an element that emits red light, a green light-emitting diode having an element that emits green light, and a blue light-emitting diode that has an element that emits blue light, that is, a light emitting color Three different single-color light emitting diodes may be used as one set, instead of one three-color light emitting diode.

  When the three-color light emitting diode is lit, the power down warning lamp 34 is lit (displayed) in a color corresponding to the luminescent color. The power-down warning lamp 34 indicates the degree of decrease in the total output possible value QS according to the displayed color, blue is level 0 (no decrease, 85 <QS ≦ 100 kW), and yellow is level 1 (decrease amount) Small, 75 <QS ≦ 85 kW), purple indicates level 2 (medium decrease, 65 <QS ≦ 75 kW), and red indicates level 3 (large decrease, QS ≦ 65 kW).

  As shown in FIG. 3, the meter ECU 1 includes a central processing unit (CPU) 11, a read-only memory (ROM) 12, a random readable / writable memory (RAM) 13, and electrical erasing, which are well-known. / A rewritable read-only memory (EEPROM) 14 and a communication unit 15 are included.

  The CPU 11 controls the entire meter ECU 1 and performs control according to a program stored in the ROM 12. The CPU 11 operates with electric power supplied from the vehicle power supply via the power supply circuit 11j. The CPU 11 is activated in response to a change of the vehicle ignition switch (IGN +) from the OFF state to the ON state (that is, power-on) via the interface (I / F) 11i, and the IGN + is switched from the ON state to the OFF state. The operation is terminated according to the change.

  The ROM 12 stores a control program for causing the CPU 11 to function as various means such as a current output amount total value display control means, output possible amount total value display control, type display control means, and power down warning display control means. Yes. The CPU 11 functions as the above-described various means by executing the control program stored in the ROM 12. The RAM 13 stores various data and has an area necessary for processing operations of the CPU 11.

  The EEPROM 14 is an electrically erasable / rewritable read-only memory, and is electrically connected to the CPU 11. The EEPROM 14 is (1) a conversion table T1 for converting the output amount of the driving power currently output by the motor (current motor output amount PM) from the motor rotation speed, motor current value, etc., and (2) the engine currently outputs. Conversion table T2 for converting the output amount of traveling power (engine current output amount PE) from the engine speed, fuel consumption, etc. (3) Output amount of travel power that can be output by the motor (motor output possible amount QM ) Is converted from the remaining amount of electricity stored in the traveling battery, and (4) the amount of traveling power that the engine can currently output when there is remaining fuel (amount of engine output QEs (fixed value: 70 kW)) (5) Meter E such as maximum output possible amount QSmax (fixed value: 100 kW), which is the maximum value that can be output when traveling power is obtained from both the motor and engine Various information required for controlling the U1 is stored.

  The communication unit 15 is communicably connected to an in-vehicle network (not shown) such as a CAN built in the vehicle via the I / F 11i, and communicates with other electronic devices connected to the in-vehicle network using a communication protocol such as CAN. Do.

  The CPU 11 outputs a pulse signal proportional to the engine rotational speed (engine rotational speed signal) and a pulse signal proportional to the motor rotational speed (motor rotational speed signal) respectively output from a sensor (not shown) via the I / F 11i. , Is input. When the engine speed signal is input, the CPU 11 acquires the engine speed indicated by the signal as engine speed information. Further, when the motor rotation speed signal is input, the CPU 11 acquires the motor rotation speed indicated by the signal as motor rotation speed information.

  Further, the CPU 11 outputs a signal (motor current value signal) indicating a motor current value flowing through the motor, which is output from a sensor (not shown) via the I / F 11i, and a fuel consumption amount per unit time consumed by the engine. A signal (fuel consumption signal) is input. When the motor current value signal is input, the CPU 11 acquires the motor current value indicated by the signal as motor current value information. Further, when the fuel consumption amount signal is input, the CPU 11 acquires the fuel consumption amount indicated by the signal as fuel consumption amount information. In the present embodiment, the CPU 11 acquires the motor rotational speed information, the engine rotational speed information, the motor current value information, and the fuel consumption amount information by each signal input via the I / F 11i. However, the present invention is not limited to this. For example, these various types of information may be acquired via the communication unit 15 from a drive system electronic control device (that is, another electronic device) that controls the motor and the engine. Good.

  A motor driver 16 is electrically connected to the CPU 11, a rotating inner unit 7 of the first display 20 is electrically connected to the motor driver 16, and the rotating inner unit 7 is Driven by the control of the CPU 11. The CPU 11 uses each conversion table or the like stored in the EEPROM 14, and based on the motor speed information, the engine speed information, the motor current value information, and the fuel consumption information, the motor current output amount PM and the engine current output amount PE. And a total value thereof (current output amount total value PS) is calculated. And CPU11 sends the drive signal according to the said present output amount total value PS to the 1st indicator 20 (namely, rotation internal unit 7) via the motor driver 16, and the rotation internal unit 7 is. Then, the pointer member 8 is rotated to the designated position corresponding to the drive signal, and the current output amount total value PS is displayed in cooperation with the numerical index 42 and the scale index 43 of the dial 4.

  Further, the CPU 11 detects a signal (a remaining charge signal) from a not-shown remaining charge detection sensor for detecting the remaining charge in the traveling battery and the remaining fuel in the fuel tank via the I / F 11i. A signal (fuel remaining amount signal) from a fuel remaining amount detection sensor (not shown) is input.

  The remaining power storage detection sensor detects, for example, a remaining power storage based on a value obtained by integrating the amount of electricity charged to the traveling battery and the amount of discharged electricity, or the battery voltage being discharged during normal operation. For example, a value that is detected and compared with a predetermined voltage value to detect the remaining amount of electricity is used. Then, the remaining charge detection sensor outputs a remaining charge signal corresponding to the detected remaining charge to the CPU 11.

  The remaining fuel detection sensor has, for example, a contact that slides on the resistor according to the position of the float that floats on the fuel level, and outputs a voltage obtained by dividing the voltage applied to both ends of the resistor to the contact For example, a device that detects the liquid level (that is, the liquid level) of the fuel in the fuel tank as the remaining amount of fuel is used. The fuel remaining amount detection sensor outputs a fuel remaining amount signal corresponding to the detected fuel remaining amount to the CPU 11.

  A light emitting diode (LED) driver 18 is electrically connected to the CPU 11, and the LED driver 18 includes a second indicator 30, type indicator lamps 32 and 33, a power down warning lamp 34, Are electrically connected. The CPU 11 calculates and obtains the motor output possible amount QM and the engine output possible amount QE using each conversion table or the like stored in the EEPROM 14, and based on the motor output possible amount QM and the engine output possible amount QE, the LED Via the driver 18, the second indicator 30 (that is, the plurality of light emitting diodes 62), the type indicator lamps 32 and 33 (that is, blue and green light emitting diodes), and the power down warning lamp 34 (that is, three-color light emission). The diode is driven and controlled.

  Specifically, the second display 30 displays the first arc-shaped graphic portion G1 from the position “0” of the numerical index 42 in a length corresponding to the motor output possible amount QM based on the drive control by the CPU 11. Then, the second arc-shaped graphic part G2 is displayed in a length corresponding to the engine output possible amount QE following (connected to) the first arc-shaped graphic part G1. In other words, the second indicator 30 sequentially accumulates the first arc-shaped figure portion G1 indicating the motor output possible amount QM and the second arc-shaped figure portion G2 indicating the engine output possible amount QE, thereby obtaining the arc-shaped figure. In addition to displaying G and indicating the numerical index 42 and the scale index 43 at the tip of the arc-shaped figure G, in cooperation with the numerical index 42 and the scale index 43, the motor output possible amount QM and the engine output possible amount The outputable amount total value QS which is the total value of QE is displayed.

  The type indicator lamp 32 is displayed together with the display of the first arc-shaped graphic part G1 based on the drive control by the CPU 11, and is erased together with the deletion of the first arc-shaped graphic part G1. Similarly, the type indicator lamp 33 is displayed together with the display of the second arc-shaped graphic part G2 based on the drive control by the CPU 11, and is erased together with the deletion of the second arc-shaped graphic part G2.

  The power-down warning lamp 34 is displayed in a color corresponding to the value of the total outputable value QS based on drive control by the CPU 11.

  An example of the operation (travel power display control process) according to the present invention in the CPU 11 provided in the meter ECU 1 will be described below with reference to the flowchart of FIG.

  When the ignition switch of the hybrid vehicle is turned on and the supply of electric power from the vehicle power supply is started, the meter ECU 1 executes a predetermined initialization process, and then proceeds to step S110.

  In step S110, motor output possible amount QM, engine output possible amount QE, and output possible amount total value QS are calculated. Specifically, the remaining amount of electricity stored in the remaining amount of electricity signal input to the CPU 11 is applied to the conversion table T3 stored in the EEPROM 14 to obtain the motor output possible amount QM. Further, it is determined whether or not the fuel remaining amount indicated by the fuel remaining amount signal input to the CPU 11 is zero. If the fuel remaining amount is zero, the engine output possible amount QE is set to zero and the fuel remaining amount is zero. Otherwise, the engine output possible amount QE is set as the engine output possible amount QEs stored in the EEPROM 14. Then, the motor output possible amount QM and the engine output possible amount QE are added so as to give priority to the motor output possible amount QM and not exceed the maximum output possible amount QSmax, thereby calculating the total output possible amount QS. Then, the process proceeds to step S120.

  In step S120, the motor current output amount PM, the engine current output amount PE, and the current output amount total value PS are calculated. Specifically, the motor rotation speed information indicated in the motor rotation speed signal input to the CPU 11 and the motor current value information indicated in the motor current value signal are applied to the conversion table T1 stored in the EEPROM 14 to obtain the current motor output. Get competence PM. Similarly, the engine speed information indicated in the engine speed signal input to the CPU 11 and the fuel consumption information indicated in the fuel consumption signal are applied to the conversion table T2 stored in the EEPROM 14, and the current engine speed is obtained. Get the output amount PE. Then, the current output amount total value PS is calculated by adding the current motor output amount PM and the current engine output amount PE. Then, the process proceeds to step S130.

  In step S130, the arcuate graphic G indicating the total outputable value QS is displayed on the second display 30. Specifically, the first arc-shaped graphic portion G1 is displayed from the position “0” of the numerical index 42 with a length corresponding to the motor output possible amount QM acquired in step S110. Here, when the motor output possible amount QM is zero, the first arc-shaped figure portion G1 is not displayed (that is, deleted). Then, the second arc-shaped graphic portion G2 is connected to the tip of the first arc-shaped graphic portion G1, or when the first arc-shaped graphic portion G1 is not displayed, the position of the numerical index 42 is “0” in step S110. A length corresponding to the acquired engine output possible amount QE is displayed. Here, when the engine output possible amount QE is zero, the second arc-shaped graphic portion G2 is not displayed (that is, deleted). And the arc-shaped figure G is displayed by displaying the 1st arc-shaped figure part G1, the 2nd arc-shaped figure part G2, or these both. At this time, the tip of the arc-shaped figure G indicates a numerical index 42 and a scale index 43 indicating the total outputable value QS. Then, the process proceeds to step S140.

  In step S140, the type indicator lamps 32 and 33 are displayed / erased. Specifically, in accordance with the display and deletion of the first arc-shaped graphic portion G1 in step S130, the type indicator lamp 32 is displayed and deleted, and the display of the second arc-shaped graphic portion G2 in step S130 and In accordance with the erasure, the type indicator lamp 33 is displayed and erased. Then, the process proceeds to step S150.

  In step S150, the first output unit 20 displays the current output amount total value PS. Specifically, a drive signal corresponding to the current output amount total value PS calculated in step S120 is sent to the rotating internal unit 7 included in the first display device 20 via the motor driver 16. The rotating inner unit 7 rotates the pointer member 8 to an instruction position corresponding to the drive signal, and the pointer member 8 indicates a numerical index 42 and a scale index 43 indicating the current output amount total value PS. Then, the process proceeds to step S160.

  In step S160, the power down warning lamp is turned on. Specifically, the output possible amount total value QS calculated in step S110 is determined. (1) Lights blue when 85 <QS ≦ 100 kW, and (2) Yellow when 75 <QS ≦ 85 kW. Lights up. (3) Lights purple when 65 <QS ≦ 75 kW. (4) Lights red when QS <65 kW. Then, the process returns to step S110. Thereafter, the processes from step S110 to S160 are repeated.

  An example of the operation of the meter ECU 1 according to the present invention will be described.

  When the hybrid vehicle starts traveling, the motor output possible amount QM, the engine output possible amount QE, and the output possible amount total value QS are calculated based on the remaining power storage amount and the remaining fuel amount (S110), and the motor rotation speed and engine rotation speed are calculated. Based on the motor current value and the fuel consumption, the motor current output amount PM, the engine current output amount PE, and the current output amount total value PS are calculated (S120). Then, in accordance with the calculated value, the second display 30 displays a first arc-shaped graphic portion G1 indicating the motor output possible amount QM, a second arc-shaped graphic portion G2 indicating the engine output possible amount QE, and output possible. The arc-shaped graphic G indicating the total amount value QS is displayed (S130), and the current output amount total value PS is displayed on the first display 20 (S150). Further, the type indicator lamp 32 (MOTOR) and the type indicator lamp 33 (ENGINE) are displayed and deleted in accordance with the display and deletion of the first arc-shaped figure portion G1 and the second arc-shaped figure portion G2 (S140). Further, the power-down warning lamp 34 is displayed in a color corresponding to the value of the total output possible value QS (S160).

  For example, when the motor output possible amount QM is 70 kW and the engine output possible amount QE is 70 kW, the motor output possible amount QM is prioritized and added so as not to exceed the maximum output possible amount QSmax. It is assumed that the total value QS is 100 kW, and the current output amount total value PS is 60 kW by adding the current motor output amount PM and the current engine output amount PE. At this time, as shown in FIG. 5A, the first arc-shaped graphic portion G1 is displayed on the second display 30 up to the positions of “0” to “7” of the numerical index 42, and the second arc-shaped shape is displayed. The graphic portion G2 is displayed up to the positions of “7” to “10” of the numerical index 42, whereby the tip of the arc-shaped graphic G indicates “10” of the numerical index 42. Further, the pointer member 8 of the first indicator 20 indicates “6” of the numerical index 42. The type indicator lamp 32 is displayed along with the display of the first arc-shaped graphic portion G1, and the type indicator lamp 33 is displayed along with the display of the second arc-shaped graphic portion G2. Then, the power down warning lamp 34 is displayed in blue according to the value of the total output possible value QS. At this time, from the difference value between 60 kW that the first display 20 displays as the current output amount total value PS and 100 kW that the second display 30 displays as the output possible amount total value QS, the driving power is 40 kW. It can be seen that the output can be added.

  Also, for example, when the motor output possible amount QM is 30 kW and the engine output possible amount QE is 70 kW, these are added to obtain a total output possible amount value QS of 100 kW, and the motor current output amount PM and the engine current output It is assumed that the current output amount total value PS is 100 kW by adding the power PE. At this time, as shown in FIG. 5B, the first arc-shaped graphic portion G1 is displayed on the second display 30 up to the positions of “0” to “3” of the numerical index 42, and the second arc-shaped shape is displayed. The graphic portion G2 is displayed up to the positions of “3” to “10” of the numerical index 42, whereby the tip of the arc-shaped graphic G indicates “10” of the numerical index 42. Further, the pointer member 8 of the first indicator 20 indicates “10” of the numerical index 42. The type indicator lamp 32 is displayed along with the display of the first arc-shaped graphic portion G1, and the type indicator lamp 33 is displayed along with the display of the second arc-shaped graphic portion G2. Then, the power down warning lamp 34 is displayed in blue according to the value of the total output possible value QS. At this time, from the difference value between 100 kW displayed on the first display 20 as the current output amount total value PS and 100 kW displayed on the second display 30 as the output possible amount total value QS, the driving power is further increased. It turns out that it cannot add and output.

  Also, for example, when the motor output possible amount QM is 10 kW and the engine output possible amount QE is 70 kW, these are added to obtain a total output possible amount value QS of 80 kW, and the motor current output amount PM and the engine current output It is assumed that the current output amount total value PS is 50 kW by adding the force amount PE. At this time, as shown in FIG. 5 (c), the first arc-shaped figure portion G1 is displayed on the second display 30 up to the position of "0" to "1" of the numerical index 42, and the second arc shape is displayed. The graphic portion G2 is displayed up to the positions of “1” to “8” of the numerical index 42, whereby the tip of the arc-shaped graphic G indicates “8” of the numerical index 42. Further, the pointer member 8 of the first indicator 20 indicates “5” of the numerical index 42. The type indicator lamp 32 is displayed along with the display of the first arc-shaped graphic portion G1, and the type indicator lamp 33 is displayed along with the display of the second arc-shaped graphic portion G2. Then, the power-down warning lamp 34 is displayed in yellow according to the value of the total output possible value QS. At this time, from the difference value between 50 kW that the first display 20 displays as the current output amount total value PS and 80 kW that the second display 30 displays as the output possible amount total value QS, the driving power is 30 kW. It can be seen that the output can be added.

  Also, for example, when the motor output possible amount QM is 0 kW and the engine output possible amount QE is 70 kW, these are added to obtain a total output possible amount value QS of 70 kW, and the motor current output amount PM and the engine current output It is assumed that the current output amount total value PS is 50 kW by adding the force amount PE. At this time, as shown in FIG. 5 (d), the first arc-shaped graphic portion G1 is not displayed (erased) on the second display 30, and the second arc-shaped graphic portion G2 is set to "0" of the numerical index 42. ”To“ 7 ”, so that the tip of the arc-shaped figure G indicates“ 7 ”of the numerical index 42. Further, the pointer member 8 of the first indicator 20 indicates “5” of the numerical index 42. Then, the type indicator lamp 32 is deleted (indicated by a dotted line in the figure) along with the deletion of the first arc-shaped graphic portion G1, and the type indicator lamp 33 is displayed along with the display of the second arc-shaped graphic portion G2. Then, the power down warning lamp 34 is displayed in purple according to the value of the total output possible value QS. At this time, 20 kW of driving power is added from the difference value between 50 kW that the first display 20 displays as the current output amount total value PS and 70 kW that the second display 30 displays as the output possible amount total value QS. It can be seen that output is possible.

  Also, for example, when the motor output possible amount QM is 70 kW and the engine output possible amount QE is 0 kW, these are added to obtain a total output possible amount value QS of 70 kW, and the motor current output amount PM and the engine current output It is assumed that the current output amount total value PS is 50 kW by adding the force amount PE. At this time, as shown in FIG. 5 (e), the first arc-shaped graphic portion G1 is displayed on the second display 30 up to the positions of “0” to “7” of the numerical index 42, and the second arc-shaped shape is displayed. The graphic portion G2 is not displayed (erased), whereby the tip of the arc-shaped graphic G indicates “7” of the numerical index 42. Further, the pointer member 8 of the first indicator 20 indicates “5” of the numerical index 42. Then, the type indicator lamp 32 is displayed along with the display of the first arc-shaped figure portion G1, and the type indicator lamp 33 is deleted (indicated by a dotted line in the figure) as the second arc-shaped figure portion G2 is deleted. Then, the power down warning lamp 34 is displayed in purple according to the value of the total output possible value QS. At this time, from the difference value between 50 kW displayed on the first display 20 as the current output amount total value PS and 70 kW displayed on the second display 30 as the output possible amount total value QS, the driving power is 20 kW. It can be seen that the output can be added.

  Further, for example, when the motor output possible amount QM is 60 kW and the engine output possible amount QE is 0 kW, these are added to obtain a total output possible amount value QS of 60 kW, and the motor current output amount PM and the engine current output It is assumed that the current output amount total value PS is 50 kW by adding the force amount PE. At this time, as shown in FIG. 5 (f), the second arcuate graphic portion G 1 is displayed on the second display 30 up to the positions of “0” to “6” of the numerical index 42, and the second arc shape is displayed. The graphic portion G2 is not displayed (erased), whereby the tip of the arc-shaped graphic G indicates “6” of the numerical index 42. Further, the pointer member 8 of the first indicator 20 indicates “5” of the numerical index 42. Then, the type indicator lamp 32 is displayed along with the display of the first arc-shaped figure portion G1, and the type indicator lamp 33 is deleted (indicated by a dotted line in the figure) as the second arc-shaped figure portion G2 is deleted. Then, the power down warning lamp 34 is displayed in red according to the value of the total output possible value QS. At this time, from the difference value between 50 kW that the first display 20 displays as the current output amount total value PS and 60 kW that the second display 30 displays as the output possible amount total value QS, the driving power is 10 kW. It can be seen that the output can be added.

  In each of the states shown in FIGS. 5A to 5F described above, the first display 20 is indicated by an arc-shaped graphic G displayed on the second display 30 in accordance with the current output amount total value PS. The numerical index 42 and the scale index 43 within the range of the total outputable value QS are indicated, and these indices are not indicated beyond this range. That is, the range indicated by the arc-shaped graphic G represents the rotatable range of the pointer member 8 of the first indicator 20.

  In each state shown in FIGS. 5A to 5F described above, from the display state of the type indicator lamps 32 and 33 (that is, the display state of the first arc-shaped graphic portion G1 and the second arc-shaped graphic portion). A hybrid vehicle travels with both a motor and an engine (FIGS. 5A to 5C), only an engine (FIG. 5D), or only a motor (FIGS. 5E and 5F). You can see that

  As described above, according to the present invention, the first indicator 20 that displays the current output amount total value PS of the traveling power in the motor and the engine, and the output possible amount total value QS of the traveling power in the motor and the engine are displayed. And the second indicator 30, so that the current output amount total value PS of the traveling power displayed on the first indicator 20 and the total outputable amount of traveling power displayed on the second indicator 30 are included. From the difference value with the value QS, it is possible to grasp the power for traveling that can be additionally output.

  Further, the dial 4 is provided as an indicator portion provided with a numerical indicator 42 and a scale indicator 43 that commonly indicate the current output amount and the output possible amount of driving power, and the first display 20 has a total current output amount value. Since the numerical indicator 42 and the scale indicator 43 are indicated according to PS, and the second indicator 30 indicates the numerical indicator 42 and the scale indicator 43 according to the total output possible value QS, the first indicator 20 and the second indicator 43 are indicated. The display 30 displays the current output amount total value PS and the output possible amount total value QS by indicating the common numerical index 42 and scale index 43, and therefore the first display 20 and the second display The distance (interval) between the two indices indicated by 30 represents the difference value between the current output amount total value PS and the outputable amount total value QS. It can be easily grasped.

  In addition, the dial 4 is provided with the numerical index 42 and the scale index 43 provided in an arc shape, the first indicator 20 (that is, the first indication unit) includes the pointer member 8 and the pointer member 8 includes the current output amount. A rotating inner unit 7 for rotating the pointer member 8 about the center of the arc of the index so as to indicate the numerical index 42 and the scale index 43 according to the value PS, and the second indicator 30 (that is, The length is determined so that the second indicating unit) indicates the numerical index 42 and the scale index 43 according to the total outputable value QS arranged along the numerical index 42 and the scale index 43 at the tip. Since the arc-shaped figure G is displayed, the pointer member 8 indicates the current output amount total value PS of the driving power, and the arc-shaped figure G indicates the total output possible amount QS of the driving power. Numerical index 42 and scale with G displayed in parallel The range of target 43, can be recognized as the rotation range of the pointer member 8, thus, it is possible to visually more easily grasp the printable running power add.

  Further, the arc-shaped figure G is color-coded with each other, and the length is determined according to the output possible amount in each of the motor and the engine, and the first arc-shaped figure part G1 and the second arc-shaped figure part G2 are connected to each other. Therefore, it is possible to easily grasp the ratios of the output power amounts QM and QE of the driving power in the motor or engine that occupy the total output power amount QS of the driving power indicated by the arc-shaped graphic G.

  Further, when the hybrid vehicle is set to a travel mode that preferentially outputs the driving power output from the motor, the hybrid vehicle displays the current output amount total value PS displayed by the first display 20. Is within the range of the first arc-shaped graphic portion G1 (that is, the outputable amount of the motor) displayed by the second indicator 30, the vehicle travels only with the motor and is within the range of the second arc-shaped graphic portion G2. When traveling with both the motor and the engine, the relationship between the output power of the travel power and the power machine (motor and engine) used for travel, that is, the output power of the travel power at which the engine operates or stops Therefore, according to the driving conditions, etc., it is necessary to select driving with only the motor or driving with both the motor and engine. It can be.

  For example, FIG. 5A shows a state in which the first indicator 20 indicates a numerical index 42 and a scale index 43 (60 kW) within the range of the first arc-shaped graphic portion G1. From this display, the hybrid vehicle is currently running only with a motor, and the numerical indicator 42 in which the first indicator 20 is in the range of the second arc-shaped graphic portion G2 by adding the driving power exceeding 10 kW. And the scale index 43 (70 kW to 100 kW) is indicated, that is, it is understood that the vehicle travels with both the motor and the engine.

  That is, if it is desired to improve the fuel efficiency, the hybrid vehicle may be operated so that the value indicated by the first indicator 20 stays within the range of the first arc-shaped graphic portion G1, and the vehicle is driven strongly. If it is desired to do so, the operation may be performed so that the value indicated by the first indicator 20 falls within the range of the second arc-shaped graphic portion G2.

  In the present embodiment, the arc-shaped graphic G displayed on the second display 30 (that is, the graphic display unit) connects the color-coded first arc-shaped graphic part G1 and second arc-shaped graphic part G2 to each other. However, the present invention is not limited to this, and the one-color arc-shaped graphic G having a length corresponding to the total outputable value QS that is not color-coded in these arc-shaped graphic portions is displayed. Anyway.

  Further, in the present embodiment, the type indicator lamps 32 and 33 and the power down warning lamp 34 are provided, but a configuration not including these may be used.

  In the present embodiment, the first display 20 displays the current output amount total value PS by indicating the numerical index 42 and the scale index 43 of the dial 4 with the pointer member 8, and the second display 30. However, the output possible amount total value QS is displayed by instructing the numerical index 42 and the scale index 43 of the dial 4 with the tip of the arc-shaped figure G, but is not limited to this.

  For example, like a meter ECU 1A shown in FIG. 6A, an indicator portion 4A having a numerical indicator and a scale indicator arranged in a straight line on the facing plate 2, and the indicator portion 4A are sandwiched between them to A first display 20A for displaying a rectangular figure H1 having a length corresponding to the force total value PS, and a second display 30A for displaying a rectangular figure H2 having a length corresponding to the output possible quantity total value QS. Or a first indicator 20B that displays the current output amount total value PS and the output possible amount total value QS as numerical values, respectively, as in the meter ECU 1B shown in FIG. 6B. The structure provided with the 2nd indicator 30B may be sufficient.

  Even in such a configuration, the current output amount total value PS of the traveling power displayed on the first indicator 20A (20B) and the possible output amount of traveling power displayed on the second indicator 30A (30B). From the difference value with respect to the total value QS, it is possible to grasp the driving power that can be additionally output. In particular, in the meter ECU 1A shown in FIG. 6A, the first indicator 20A and the second indicator 30A indicate the common indicator portion 4A, so that the current output amount total value PS and the output possible amount The total value QS is displayed. Therefore, the distance (interval) between the two indicators indicated by the first display 20A and the second display 30A is the current output amount total value PS and the output possible amount total value QS. It represents the difference value, and therefore it is possible to easily grasp visually the driving power that can be additionally output.

  Further, the current motor output amount PM, the current engine output amount PE, the motor output possible amount QM, and the engine output possible amount QE are not limited to the calculation method shown in the present embodiment, and As long as it is not contrary to the above, it is optional depending on the configuration of the hybrid vehicle.

  Moreover, although this embodiment describes the structure which displays only the present output amount and output possible amount of motive power for driving | running | working, this well-known combination meter which displays a vehicle speed, an engine speed, etc., for example is described. Inventions may be included.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

1, 1A, 1B Meter ECU (Hybrid vehicle display device)
2 Turn-back plate 20, 20A, 20B First display 30, 30A, 30B Second display 31 Arc-shaped cover 32, 33 Type indicator 34 Power-down warning light 4 Dial (index part)
42 Numerical index (index)
43 Scale index (index)
5 Case 53 Housing space 6 Wiring board 62 Two-color light emitting diode 7 Rotating inner unit (pointer drive unit)
8 Pointer member (pointer part)
G Arc-shaped figure G1 First arc-shaped figure part (arc-shaped figure part)
G2 Second arc-shaped graphic part (arc-shaped graphic part)
PM Current motor output PE Current engine output PS Current output total value (Total current power output value)
QM Motor output possible amount QE Engine output possible amount QS Output possible amount total value (total value of traveling power output possible amount)

Claims (4)

A display device for a hybrid vehicle mounted on a hybrid vehicle driven by driving power generated by a plurality of power machines,
A first indicator for displaying a total value of the current output amount of the traveling power in the plurality of power machines;
A display device for a hybrid vehicle, comprising: a second display that displays a total value of output possible amounts of the traveling power in the plurality of power machines. An indicator unit provided with an indicator that commonly indicates the current output amount and the outputable amount;
The first indicator includes a first instruction unit that instructs the index according to the total value of the current output amount,
2. The display device for a hybrid vehicle according to claim 1, wherein the second display device includes a second instruction unit that instructs the index according to a total value of the output possible amount. The indicator portion is a dial plate in which the indicator is provided in an arc shape,
The first indicating unit is a pointer unit, and a pointer driving unit is configured to rotate the pointer unit about an arc center of the index so that the pointer unit indicates the index corresponding to the total value of the current output amount. And comprising
A graphic for displaying an arc-shaped graphic whose length is determined so that the second instruction unit is arranged in parallel along the index and indicates the index according to the total value of the output possible amount at the tip. The display device for a hybrid vehicle according to claim 2, further comprising a display unit.   The arcuate figure is formed by connecting a plurality of arcuate figure parts, each of which is color-coded and whose length is determined according to the outputable amount of each of the plurality of power machines. Item 4. A display device for a hybrid vehicle according to Item 3.

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