JP2007237970A - Display apparatus for hybrid electric automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display apparatus for a hybrid electric automobile, which display apparatus can simultaneously indicate the information about the total power of the engine power from an engine and the electric power from an electric motor and the information about the ratio of the electric power to the total power. <P>SOLUTION: The display apparatus 10 for the hybrid electric automobile is used for the hybrid electric automobile 1 which runs using both of the electric motor 2 for generating a driving power caused by electric power and the engine 4 for generating the driving power caused by an internal combustion engine. The display 10 comprises a first display device 20 for indicating the total power of the engine power output from the engine 4 and the electric power output from the electric motor 2, and a second display device 30 for indicating at least one of the engine power and the electric power, wherein the display devices 20, 30 are configured to carry out the display based on common indexes 21a, 21c or common units 2b, and further the respective displays of the display devices 20, 30 are indicated in parallel with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device for a hybrid electric vehicle used in a hybrid electric vehicle.

  In recent years, a hybrid electric vehicle (hybrid vehicle) that travels using both an electric motor that generates driving force by electric power and an engine that generates driving force by an internal combustion engine has been put into practical use.

  In a hybrid vehicle, an electric motor is used at the time of starting, an engine and an electric motor are used in combination at the time of acceleration, and surplus power is charged by operating a generator while running on the engine at a constant running. And at the time of deceleration, it charges by regenerative power generation by an electric motor. In this way, the motor is skillfully used in the driving conditions that the engine is not good at, and when the engine is operating, it operates efficiently and surplus driving force is used for charging.

  As a result, the traveling of the hybrid vehicle is controlled in a complicated manner as compared with the traveling of the automobile that travels only by the engine. Therefore, it is necessary to make the driver effectively recognize this complicated traveling state.

  As a display device for a hybrid vehicle, a power meter that displays the total power of the engine power from the engine and the electric power from the electric motor has been put into practical use in the hybrid vehicle. The power meter is intended to recognize the traveling state of the hybrid vehicle as the total power.

  On the other hand, as a display device for a hybrid vehicle, the storage battery power and the engine power from the storage battery for operating the electric motor are displayed on the vertical axis, and the vehicle speed is displayed on the horizontal axis, thereby two-dimensionally displaying them. A display device for display is disclosed (see Patent Document 1).

  By displaying the storage battery power and the engine power in different colors on the vertical axis, the ratio of the storage battery power and the engine power is recognized by the driver. The engine operating state can be recognized by the engine power display, and the operating state of the electric motor can be indirectly recognized by the storage battery power display.

This display device is intended to recognize the traveling state of the hybrid vehicle by two-dimensional vision as the ratio between the storage battery power and the engine power and the vehicle speed.
JP 2005-35413 A

  The driver expects an ecological feeling (economy and ecology) for the hybrid vehicle. This eco feeling is composed of energy saving and low cost feeling due to reduction of fuel consumption, etc., and clean feeling due to low air pollution and low noise. This ecological feeling can be obtained by decreasing the engine power, that is, by increasing the electric power.

  However, when the total power is required at a high output, for example, when accelerating suddenly or climbing a steep slope, it is not possible to cope with it simply by increasing the electric power. In this case, the total power needs to be increased. If the ratio of the electric power is increased in the increased total power, an eco feeling can be obtained.

  On the other hand, when the total power is sufficient for the low output, it is necessary to reduce the total power. If the ratio of the electric power is increased in the reduced total power, an ecological feeling can be obtained.

  That is, if the driver can grasp both the total power and the ratio of the electric power to the total power, the driver can effectively recognize the complicated traveling state of the hybrid vehicle.

  However, both information on the total power and the ratio of the electric power to the total power constantly change. Therefore, in order to recognize the traveling state of the hybrid vehicle at each moment, it is necessary for the driver to simultaneously grasp both the total power and electric power ratio information.

  On the other hand, the power meter described above displays only the total power and cannot display the electric power, and therefore cannot simultaneously grasp both the total power and the ratio of the electric power to the total power. .

  On the other hand, the display device disclosed in Patent Document 1 can display engine power and can indirectly display electric power by displaying storage battery power. However, since the ratio between the storage battery power and the engine power and the vehicle speed are two-dimensionally displayed, it is difficult to simultaneously grasp both the total power and the ratio of the electric power to the total power.

  The present invention has been made in view of the above problems, and is capable of simultaneously grasping information on both the total power obtained by adding the engine power from the engine and the electric power from the electric motor and the ratio of the electric power to the total power. An object of the present invention is to provide a display device for a hybrid electric vehicle that can perform the above.

  In order to achieve the above object, the present invention employs the following technical means.

  The display device for a hybrid electric vehicle according to claim 1 is a display for a hybrid electric vehicle that is used in a hybrid electric vehicle that travels using both an electric motor that generates driving force by electric power and an engine that generates driving force by an internal combustion engine. A first display for displaying a total power obtained by adding the engine power output from the engine and the electric power output from the electric motor; and a second display for displaying at least one of the engine power and the electric power. The first display and the second display are configured to display based on a common index or a common unit, and the display of the first display and the display of the second display are arranged in parallel. It is comprised by these.

  In this configuration, the first display that displays the total power and the second display that displays at least one of the engine power and the motor power are configured to display based on a common index or a common unit. The display on the first display and the display on the second display are arranged in parallel.

  Thereby, when the second display displays the electric power, the electric power is grasped from the display of the second display, the total power is grasped from the display of the first display, the display of the first display and the second display The ratio of the electric power to the total power is grasped from the comparison with the display on the display.

  Further, the first display and the second display are configured to display based on a common index or a common unit, and the display of the first display and the display of the second display are arranged in parallel. Therefore, it is possible to simultaneously grasp both the total power and the ratio of the electric power to the total power.

  On the other hand, when the second display displays only engine power, the total power is determined from the display on the first display, and the electric power is determined from the difference between the display on the first display and the display on the second display. At the same time, the ratio of the electric power to the total power can be grasped from these comparisons.

  Also in this case, the first display and the second display are configured to display based on a common indicator or a common unit, and the display of the first display and the display of the second display are performed. Since it is comprised so that it may be paralleled, it can grasp | ascertain simultaneously the information of both the total power and the ratio of the electric power which occupies for total power.

  That is, it is possible to provide a display device for a hybrid electric vehicle that can simultaneously grasp both information of the total power obtained by adding the engine power from the engine and the electric power from the electric motor and the ratio of the electric power to the total power.

  The display device for a hybrid electric vehicle according to claim 2 is configured such that the first indicator includes a dial on which an index is formed and a pointer that rotates the front side of the dial on the viewing side. It is characterized by that.

  In this configuration, since the first display is configured as a pointer instrument, the total power can be intuitively grasped. In addition, since the second display also displays based on the same indicator as the first display, the ratio of the electric power to the total power can be intuitively grasped by comparing the first display and the second display. Can be made.

  For this reason, information on both the total power and the ratio of the electric power to the total power can be simultaneously grasped faster.

  The display device for a hybrid electric vehicle according to claim 3 is configured such that the first display performs display by expanding or contracting one bar graph in a linear or curved shape based on an index. Features.

  In this configuration, the first display is configured to perform display by expanding and contracting one bar graph in a linear or curved shape based on the index. Thereby, total power can be grasped intuitively. In addition, since the second display also displays based on the same indicator as the first display, the ratio of the electric power to the total power can be intuitively grasped by comparing the first display and the second display. Can be made.

  For this reason, information on both the total power and the ratio of the electric power to the total power can be simultaneously grasped faster.

  The display device for a hybrid electric vehicle according to claim 4 is characterized in that the second display is configured so that the engine power and the electric power are displayed in parallel.

  In this configuration, the second display is configured such that the engine power and the electric power are displayed in parallel. As a result, the total power display, the engine power display, and the electric power display are displayed in parallel with each other, so that information on both the total power and the ratio of the electric power to the total power can be related more quickly and simultaneously. Can be made.

  The display device for a hybrid electric vehicle according to claim 5 is configured such that the second display performs display by expanding and contracting one bar graph in a linear or curved shape based on an index, and an engine. The power and electric power are configured to be stacked and displayed in one bar graph.

  In this configuration, the second display displays one bar graph by expanding or contracting in a straight line or curved line based on an index common to the first display, and the engine power and electric power are displayed in one bar graph. Stack and display. Thereby, the bar graph in which the engine power and the electric power are stacked on the second display is displayed in parallel with the same length as the display on the first display.

  That is, since the display of the first display that displays the total power and the bar graph of the second display that displays the engine power and the electric power in a stacked manner are displayed in parallel with each other, the total power and Both pieces of information on the ratio of the electric power to the total power can be grasped faster at the same time.

  The display device for a hybrid electric vehicle according to claim 6 is characterized in that the second display is configured so that the engine power and the electric power are displayed in different colors.

  In this configuration, since the engine power and the electric power are displayed in different colors on the second display, they are grasped more distinctly. Thereby, it is possible to simultaneously grasp information on both the total power and the ratio of the electric power to the total power at the same time.

  The display device for a hybrid electric vehicle according to claim 7 is characterized in that the first display and the second display are configured as one display.

  In this configuration, the first display and the second display are configured as one display. Thereby, it is possible to simultaneously grasp information on both the total power and the ratio of the electric power to the total power at the same time.

  Hereinafter, a display device for a hybrid electric vehicle according to the present invention will be described with reference to the drawings.

(Constitution)
FIG. 1 is a block diagram showing a main system configuration of a hybrid vehicle 1 that is a hybrid electric vehicle on which a display device for a hybrid electric vehicle according to an embodiment of the present invention is mounted.

  FIG. 2 is a front view of a combination meter 10 which is a display device for a hybrid electric vehicle mounted on the hybrid vehicle 1 shown in FIG.

  3 is a cross-sectional view taken along line III-III in FIG.

  FIG. 4 is a front view of the combination meter 10 for explaining the display of the E / M power meter 30 which is the second display shown in FIG.

  FIG. 5 is a circuit configuration diagram for explaining an electric circuit configuration of the combination meter 10 shown in FIG.

  A hybrid vehicle 1 that is a hybrid electric vehicle on which a display device for a hybrid electric vehicle according to an embodiment of the present invention is mounted has the main system configuration shown in FIG. When the hybrid vehicle 1 starts, the electric motor 2 operates with electric power from the high-voltage battery 3 that is a storage battery, and outputs electric power. The electric power output from the electric motor 2 is transmitted to the drive wheels 8 via the transmission 81 to drive the drive wheels 8.

  The inverter 7 converts the DC power from the high voltage battery 3 into AC power, drives the electric motor 2, and outputs electric power from the electric motor 2.

  During acceleration, both the engine 4 and the electric motor 2 are operated to drive the drive wheels 8. That is, the engine power output from the engine 4 is transmitted to the drive wheels 8 through the power split mechanism 6 and the transmission 81 to drive the drive wheels 8.

  During constant travel, the engine 4 drives the drive wheels 8 via the transmission 81 and rotates surplus power to the generator 5 via the power split mechanism 6 to generate power. That is, the surplus portion of the engine power output from the engine 4 is transmitted to the generator 5 via the power split mechanism 6 to drive the generator 5.

  This surplus engine power is converted into alternating current power by the generator 5, and this is converted into direct current power by the inverter 7. The DC power is charged in the high voltage battery 3. The power split mechanism 6 splits the engine power output from the engine 4 into an engine power for driving the drive wheels 8 and an engine power for driving the generator 5.

  At the time of deceleration, the electric motor 2 is charged by regenerative power generation. The regenerative power generation is a power generation that converts the kinetic energy of the hybrid vehicle 1 into electric energy by the electric motor 2 at the time of braking, and charges the converted high-voltage battery 3 as electric power.

  As described above, in the hybrid vehicle 1, the motor 2 is skillfully used in the driving conditions that the engine 4 is not good at, and the engine 4 is operated efficiently when the engine 4 is operating, and a surplus portion of the engine power output from the engine 4 is charged. Turn to.

  These controls are performed by a hybrid control device 9 (FIG. 5) constituted by a microcomputer or the like.

  A combination meter 10 that is a display device for a hybrid electric vehicle is configured as shown in FIG. 2, is arranged in front of the driver seat of the hybrid vehicle 1, and displays various information related to the hybrid vehicle 1. The combination meter 10 includes a power meter 20 that is a first display and an E / M power meter (engine / motor power meter) 30 that is a second display.

  The power meter 20 displays the total power obtained by adding the engine power output from the engine 4 and the electric power output from the electric motor 2, and displays the dial 21 and its front side (upper surface in FIG. 3). A rotating pointer 22 is provided.

  The dial 21 is formed of a light-transmitting material, for example, a plate material such as a colorless and transparent polycarbonate resin. On the front side of the driver's viewing side, the character 21a as an index, a scale 21c as an index, a ring The frame line 21e and the E / M display unit 31 of the E / M power meter 30, which will be described later, are formed so as to be in a white translucent state. Further, the scale 21d is formed so as to be in a green light-transmitting state, and these background portions are formed so as to be in a black non-light-transmitting state (or a state where the black light-transmitting property is low). These are formed by printing or hot stamping.

  As shown in FIG. 3, the dial 21 is provided with a through hole 25 through which a shaft 23a of a movement 23 described later is inserted, and behind the dial 21 (the lower side indicated by the arrow in FIG. 3) The movement 23, the light emitting diodes 22b, 24, and 35, the case 42, and the printed circuit board 43 are arranged. The printed circuit board 43 constitutes an electric circuit part of the combination meter 10, and the movement 23 and the light emitting diodes 22 b, 24, and 35 are mounted on the printed circuit board 43.

  The movement 23 is composed of, for example, a cross coil actuator or a stepping motor, and rotates the shaft 23a by an angle corresponding to an electric signal from the outside. The shaft 23a extends through the through hole 25 of the dial 21 to the viewing side, that is, the upper side indicated by the arrow in FIG. 3, and the pointer 22 is fixed to the tip thereof.

  The case 42 forms an illumination chamber that guides white light from the light emitting diode 22 b to the pointer 22 and also forms an illumination chamber that guides white light from the light emitting diode 24 to the dial 21. The case 42 has a white inner peripheral surface, the light from the light emitting diode 22b is reflected by the inner peripheral surface of the case 42 and guided toward the pointer 22, and the light from the light emitting diode 24 is transmitted to the case 42. Is reflected by the inner peripheral surface of the dial 21 and guided to the dial 21.

  The pointer 22 is formed of a translucent material such as acrylic resin and has a red layer on the front surface of the pointer 3 so that the white light of the light emitting diode 22b incident on the pointer 22 is emitted and displayed in red. Composed. The light shielding cap 22a prevents the white light of the light emitting diode 22b from directly entering the eyes of the driver, and is made of a non-transparent black resin or the like.

  When the electric motor 2 outputs electric power using electric power from the high-voltage battery 3 and when the engine 4 outputs engine power, the pointer 22 indicates the electric power and engine power along the scale 21c in FIG. It rotates according to the total power added. On the other hand, when charging by regenerative power generation by the electric motor 2 at the time of deceleration, that is, when the electric motor 2 absorbs the kinetic energy of the hybrid vehicle 1 as electric power, the pointer 22 follows the scale 21d in the direction opposite to the scale 21c. The motor 2 rotates according to the electric power absorbed by the motor 2.

  On the other hand, the E / M power meter 30 displays both the engine power output from the engine 4 and the electric power output from the electric motor 2, and the E / M display unit 31 and the back thereof (FIG. 3). And a light emitting diode 35 disposed on the lower side. The light emitting diode 35 includes a light emitting diode that emits blue light and a light emitting diode that emits orange light.

  The case 42 forms an illumination chamber for guiding light from the light emitting diode 35 to the E / M display unit 31 in FIG. 3 for each bar graph unit 32 of the E / M display unit 31 in FIG. 4. One light emitting diode emitting blue light and one light emitting diode emitting orange light of the light emitting diode 35 are arranged for each of the illumination chambers.

  In the display area 33 for displaying electric power in FIG. 2, only the light emitting diodes emitting blue light of each bar graph unit 32 are turned on. In the display area 34 for displaying engine power in FIG. Turn on only light emitting diodes that emit orange light. Thereby, the display area 33 is lit and displayed in blue, and the display area 34 is lit and displayed in orange.

  The E / M power meter 30 is configured as described above, and is displayed by expanding and contracting one bar graph in a curved shape (ring shape) based on the characters 21a and the scales 21c which are common indices with the power meter 20. I do. As shown in FIG. 2, a display area 34 for displaying engine power and a display area 33 for displaying electric power in the E / M display section 31 are configured to be stacked and displayed in one bar graph.

  The power meter 20 and the E / M power meter 30 are configured to display based on the common characters 21a and scales 21c, and the display of the power meter 20 and the display of the E / M power meter 30 are displayed. Configured to be parallel. For this reason, the power meter 20 and the E / M power meter 30 display so that the tip of the pointer 22 and the display area 34 coincide.

  For example, when only the engine power increases, the display area 34 is controlled to increase clockwise, and the pointer 22 is controlled to rotate clockwise by this increase. Further, when only the electric power increases, the display area 33 increases clockwise, the display area 34 moves clockwise by the increase of the display area 33 without changing its area, and the pointer 22 Each is controlled to rotate clockwise by the increment.

  The on / off control of the light emitting diodes 22b, 24, and 35 and the drive control of the movement 23 are performed by a meter control device 44 (FIG. 5) configured by a microcomputer or the like.

  Next, the electric circuit configuration of the combination meter 10 according to the embodiment of the present invention described above will be described with reference to FIG.

  The hybrid control device 9 uses the electric power signal of the electric motor 2 when the electric power is output from the electric motor 2 (when driving the drive wheels 8) and when the electric power is absorbed by the electric motor 2 (in the case of regenerative power generation). And the meter control device 44 can be input to the meter control device 44, and the engine power signal from the engine 4 can be input to the meter control device 44.

  The meter control device 44 is configured to be able to perform on / off control of the light emitting diodes 22b, 24, 35 and drive control of the movement 23 based on these signals input from the hybrid control device 9. The

  The high voltage battery 3 is a battery dedicated to a hybrid vehicle that drives the electric motor 2 and is a battery having a higher voltage than a battery for a general vehicle (not shown).

(Operation)
The operation of the combination meter 10 of the present embodiment in the above configuration will be described.

  In FIG. 5, the meter control device 44 performs on / off control of the light emitting diodes 22 b, 24, and 35 and drive control of the movement 23 based on the signal from the hybrid control device 9.

  The operation of the combination meter 10 will be described separately for the traveling state of the hybrid vehicle 1.

(1) Before starting The meter controller 44 receives from the hybrid controller 9 a signal that the electric power is zero and a signal that the engine power is zero, turns on the light emitting diodes 22b and 24, and turns off the light emitting diode 35. The movement 23 is controlled so that the pointer 22 points to “0” of the character 21a in FIG.

  The white light emitted from the light emitting diode 22b is guided to the case 42 and introduced into the pointer 22 in FIG. 3, and the pointer 22 is lit and displayed in red.

  Further, the white light of the light-emitting diode 24 turned on is guided to the case 51 and illuminates the characters 21a, scales 21c and 21d, and the frame line 21e. Thereby, the character 21a, the scale 21c, and the frame line 21e are light-emitted and displayed in white, and the scale 21d is light-emitted and displayed in green.

  The E / M display unit 31 of the E / M power meter 30 does not emit light because the light emitting diode 35 is extinguished.

  For this reason, the information that the total power is zero can be grasped from the power meter 20, and the information that the ratio of the electric power to the total power is zero can be grasped from the E / M power meter 30.

(2) Starting time The meter control device 44 receives the electric power signal output from the electric motor 2 from the hybrid control device 9, drives the movement 23 based on this signal, and turns on / off the light emitting diode 35. To control.

  That is, based on the electric power signal, the shaft 23a is rotated along the scale 21c to a predetermined angle, that is, the pointer 22 is rotated to an angle corresponding to the electric power output from the electric motor 2. Further, only the light emitting diodes emitting blue light of each bar graph unit 32 corresponding to the electric power output from the electric motor 2 are turned on.

  Since the engine power is zero, the display area 34 disappears in FIG. 2, and the tip of the pointer 22 and the display area 33 are controlled to coincide with each other.

  For this reason, the information of the total power can be grasped from the power meter 20, and the information that the ratio of the electric power to the total power is 100% can be grasped from the E / M power meter 30.

  As a result, the driver knows from the power meter 20 and the E / M power meter 30 that the ratio of the electric power to the total power is 100% at the time of starting, and the ecological feeling is obtained. You can recognize that it is in a state.

(3) Acceleration The meter control device 44 receives the electric power signal output from the electric motor 2 and the engine power signal from the hybrid control device 9, and drives the movement 23 based on the received electric power signal. Controls the turning on and off of 35.

  That is, the total power is calculated based on the electric power signal and the engine power signal, and the shaft 23a is rotated along the scale 21c at a predetermined angle, that is, the pointer 22 is an angle corresponding to the total power. Further, the light emitting diodes emitting blue light of each bar graph unit 32 corresponding to the electric power output from the electric motor 2 are turned on, and the light emitting diodes emitting orange light of each bar graph unit 32 corresponding to the engine power are turned on. The other light emitting diodes 35 are extinguished. Thereby, as shown in FIG. 2, the tip of the pointer 22 and the display area 34 are controlled to coincide with each other.

  For this reason, the information of the total power can be grasped from the power meter 20, and the information of the ratio of the electric power to the total power can be grasped from the E / M power meter 30.

  Thus, the driver can recognize that the vehicle is accelerating with both engine power and electric power at the time of acceleration, and can recognize that the vehicle is in a traveling state in which large acceleration is obtained with both of these powers.

(4) During constant running The meter controller 44 receives a signal indicating that the electric power is zero and an engine power signal from the hybrid controller 9, and drives the movement 23 based on this signal to turn on and off the light emitting diode 35. Control consumption.

  That is, based on the engine power signal, the shaft 23a is rotated along the scale 21c at a predetermined angle, that is, the pointer 22 is at an angle corresponding to the engine power. Also, only the light emitting diodes emitting orange light of each bar graph unit 32 corresponding to the engine power are turned on. Since the electric power is zero, the display area 33 disappears in FIG. 2, and the tip of the pointer 22 and the display area 34 are controlled to coincide with each other.

  For this reason, the information of the total power can be grasped from the power meter 20, and the information that the ratio of the electric power to the total power is 0% can be grasped from the E / M power meter 30.

  As a result, the driver can recognize that the vehicle is traveling only with the engine power during the constant traveling, and can recognize that the traveling state is suitable for the engine 4. As a result, since the state of charge of the high voltage battery 3 does not decrease, a sense of security can be obtained.

(5) At the time of deceleration The meter controller 44 receives a signal of the electric power (regenerative power generation state) absorbed by the electric motor 2 from the hybrid controller 9, and drives the movement 23 based on this signal to drive the light emitting diode 35. Make it disappear.

  That is, based on the signal of the electric power absorbed by the electric motor 2, the shaft 23a is graduated at a predetermined angle, that is, the pointer 22 is in the direction corresponding to the electric power absorbed by the electric motor 2 in the direction opposite to the scale 21c. Rotate along 21d.

  The E / M display unit 31 of the E / M power meter 30 does not emit light because the light emitting diode 35 is extinguished.

  Since the pointer 22 rotates along the scale 21d, the total power from the power meter 20 can be grasped as electric power absorbed by the electric motor 2 (regenerative power generation state). For this reason, it can be grasped from the total power grasped from the power meter 20 that the ratio of the electric power to the total power is 100% as the electric power absorbed by the electric motor 2. That is, it is possible to grasp both the total power and the ratio of the electric power to the total power from the power meter 20.

  Thereby, the driver recognizes that the kinetic energy of the hybrid vehicle 1 is converted into electric energy and is charged in the high-voltage battery 3 at the time of deceleration, and is in a traveling state in which an ecological feeling is obtained. Can be recognized.

  It is also possible to provide the E / M display unit 31 so as to extend along the scale 21d. In this case, the E / M display unit 31 displays in correspondence with the rotation of the pointer 22 along the scale 21d. Thereby, the total power can be grasped from the power meter 20, and the information that the ratio of the electric power to the total power is 100% can be grasped from the E / M power meter 30.

  Note that the information on both the total power and the ratio of the electric power to the total power constantly changes. However, in the combination meter 10 of the present embodiment, as described above, the power meter 20 and the E / M power meter 30 are configured to display based on the common character 21a and the scale 21c, and the power meter The display of 20 and the display of the E / M power meter 30 are configured in parallel.

  As a result, it is possible to simultaneously grasp both the total power and the ratio of the electric power to the total power. For this reason, the driver can be made to recognize the traveling state of the hybrid vehicle 1 at each moment.

  Further, since the power meter 20 is configured as a pointer instrument, the total power can be intuitively grasped.

  In addition, the E / M power meter 30 is configured such that the engine power and the electric power are stacked and displayed in one bar graph. Thereby, the pointer display of the power meter 20 that displays the total power and the bar graph of the E / M power meter 30 that displays the engine power and the electric power in a stacked manner are displayed in parallel with each other in the same length.

  Further, since the display area 33 is lit and displayed in blue, and the display area 34 is lit and displayed in orange, which is a different color tone (brightness, hue, and saturation) from the display area 33, the electric power and the engine power can be distinguished from each other. Is done.

  As a result, information on both the total power and the ratio of the electric power to the total power can be grasped faster at the same time.

(Modification)
FIG. 6 is a front view showing a first modification of the combination meter 10 shown in FIG.

  In the first modification, as shown in FIG. 6, the E / M power meter 30 is configured so that the engine power and the electric power are displayed in parallel. That is, two E / M display units 31 are arranged in parallel, and a display area 33 for displaying electric power and a display area 34 for displaying engine power are arranged in parallel.

  As a result, the total power display (display of the pointer 22), the engine power display (display area 34), and the electric power display (display area 33) are displayed in parallel with each other. As a result, information on both the total power and the ratio of the electric power occupying the total power can be more correlated and simultaneously grasped faster.

  FIG. 7 is a front view showing a second modification of the combination meter 10 shown in FIG.

  In the second modified example, as shown in FIG. 7, the E / M power meter 30 is configured as a pointer instrument that displays only the electric power. That is, the E / M power meter 30 includes a pointer 36 that rotates about the same rotation center as the pointer 22 of the power meter 20, and the pointer 36 is controlled to rotate by a movement and a shaft (not shown).

  In the second modification, since both the power meter 20 and the E / M power meter 30 are configured as pointer meters, it is possible to more intuitively grasp both the total power and the ratio of the electric power to the total power. it can. As a result, information on both the total power and the ratio of the electric power occupying the total power can be associated more quickly and simultaneously grasped faster.

  The E / M power meter 30 can be configured as a pointer instrument that displays only the engine power. In this case, the ratio of the electric power to the total power can be grasped from the difference between the display of the power meter 20 and the display of the E / M power meter 30. Thereby, it is possible to simultaneously grasp both the total power and the ratio of the electric power to the total power.

  FIG. 8 is a front view showing another modification of the combination meter 10 shown in FIG.

  In the modification shown in FIG. 8A, both the power meter 20 and the E / M power meter 30 are configured as a display that displays a bar graph on the dial 21. The power meter 20 and the E / M power meter 30 are configured to perform display by expanding and contracting the bar graph linearly based on the characters 21a.

  Thereby, both the total power and the ratio of the electric power to the total power can be grasped more intuitively. As a result, information on both the total power and the ratio of the electric power occupying the total power can be more correlated and simultaneously grasped faster.

  In the modification shown in FIG. 8B, both the power meter 20 and the E / M power meter 30 are configured as a single liquid crystal panel 41. The liquid crystal panel 41 is disposed in the opening 26 formed in the dial 21. That is, the power meter 20 and the E / M power meter 30 are configured as one display.

  In the liquid crystal panel 41, the power meter 20 digitally displays the total power, and the E / M power meter 30 digitally displays only the electric power (display area 33). Further, the power meter 20 and the E / M power meter 30 are configured to perform display based on a common unit 2b (“kW”), and the display of the power meter 20 and the display of the E / M power meter 30 are displayed. Are configured in parallel. Thereby, it is possible to simultaneously grasp information on both the total power and the ratio of the electric power to the total power at the same time.

  In the modification shown in FIG. 8C, the E / M power meter 30 is configured to display both electric power (display area 33) and engine power (display area 34) in parallel with each other. . Thereby, it is possible to simultaneously grasp information on both the total power and the ratio of the electric power to the total power at the same time.

  As described above, the combination meter 10 that is a display device for a hybrid electric vehicle according to the present invention is a hybrid electric vehicle that travels using both the electric motor 2 that generates driving force by electric power and the engine 4 that generates driving force by an internal combustion engine. A power meter 20 that is a combination meter 10 used in the hybrid vehicle 1, which is a first display that displays the total power obtained by adding the engine power output from the engine 4 and the electric power output from the electric motor 2, and the engine power And an E / M power meter 30 that is a second display that displays at least one of the electric power, and the power meter 20 and the E / M power meter 30 have a character 21a and a scale 21c that are common indices or a common indicator. Configured to display based on unit 2b ("kW"), and Wherein the display of the display and E / M Power Meter 30 power meter 20 is configured in parallel.

  Accordingly, it is possible to provide a display device for a hybrid electric vehicle capable of simultaneously grasping both information of the total power obtained by adding the engine power from the engine and the electric power from the electric motor and the ratio of the electric power to the total power. .

  Note that the present invention is not limited to the above-described example, and combinations thereof and other various modifications are conceivable.

FIG. 1 is a block diagram showing a main system configuration of a hybrid vehicle 1 that is a hybrid electric vehicle on which a display device for a hybrid electric vehicle according to an embodiment of the present invention is mounted. FIG. 2 is a front view of a combination meter 10 which is a display device for a hybrid electric vehicle mounted on the hybrid vehicle 1 shown in FIG. 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is a front view of the combination meter 10 for explaining the display of the E / M power meter 30 which is the second display shown in FIG. FIG. 5 is a circuit configuration diagram for explaining an electric circuit configuration of the combination meter 10 shown in FIG. FIG. 5 is a front view showing a first modification of the combination meter 10 shown in FIG. FIG. 7 is a front view showing a second modification of the combination meter 10 shown in FIG. FIG. 8 is a front view showing another modification of the combination meter 10 shown in FIG.

Explanation of symbols

1 Hybrid vehicle (hybrid electric vehicle)
2 Electric motor, 3 High voltage battery (storage battery), 4 Engine, 5 Generator 6 Power split mechanism, 7 Inverter, 81 Transmission 8 Drive wheel, 9 Hybrid control device 10 Combination meter (Display device for hybrid electric vehicle)
20 Power meter (first display), 21 Dial, 21a, 21b Character (index, unit)
21c, 21d Scale (index), 21e Frame line, 22, 36 Pointer 22a Shading cap, 23 movement, 23a Shaft 22b, 24, 35 Light emitting diode, 25 Through hole, 26 Opening 30 E / M power meter (second display) ), 31 E / M display section 32 Bar graph unit, 33, 34 Display area 41 Liquid crystal panel, 42 Case, 43 Printed circuit board, 44 Meter control device

Claims (7)

A display device for a hybrid electric vehicle used in a hybrid electric vehicle that travels in combination with an electric motor that generates driving force by electric power and an engine that generates driving force by an internal combustion engine,
A first indicator for displaying a total power obtained by adding the engine power output from the engine and the electric power output from the electric motor;
A second indicator for displaying at least one of the engine power and the electric power;
The first display and the second display are configured to perform display based on a common index or a common unit, and the display on the first display and the display on the second display are parallel. A display device for a hybrid electric vehicle characterized by being configured to do so.   The said 1st indicator is comprised as a pointer meter provided with the dial in which the said index was formed, and the pointer which rotates the visual side front side of this dial. Display device for hybrid electric vehicles.   2. The hybrid electric vehicle according to claim 1, wherein the first display is configured to perform display by expanding and contracting one bar graph in a linear shape or a curved shape based on the index. Display device.   The hybrid electric vehicle according to any one of claims 1 to 3, wherein the second indicator is configured to display the engine power and the electric power in parallel. Display device.   The second indicator is configured to perform display by expanding or contracting one bar graph in a linear or curved shape based on the index, and the engine power and the electric power are one bar graph. 4. The display device for a hybrid electric vehicle according to claim 1, wherein the display device is configured to be stacked and displayed.   6. The display device for a hybrid electric vehicle according to claim 4, wherein the second display is configured to display the engine power and the electric power in different colors.   The display device for a hybrid electric vehicle according to any one of claims 1 to 6, wherein the first display and the second display are configured as a single display.

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