JP2007230446A - Display device for hybrid electric automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device for a hybrid electric automobile capable of making information of power consumption from an accumulator by an electric motor, information of charging to the accumulator by the electric motor, information of the accumulation state of the accumulator and information of the operation state of an engine relevant to each other and recognizing them. <P>SOLUTION: The display device 10 for the hybrid electric automobile is used for the hybrid electric automobile 1 traveling by also using the electric motor 2 for generating drive force by electric power and the engine 4 for generating drive force by an internal combustion engine. The display device 10 for the hybrid electric automobile is provided with a fist display unit for separating the operation state of the electric motor 2 to the power consumption state for generating drive force by the electric power from the accumulator 3 and the charging state for charging to the accumulator and displaying it; a second display unit 30 for displaying the accumulation state of the accumulator 3; and a third display unit 40 for displaying the operation state of the engine 4. <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 the electric motor while running on the engine at a constant running. And at the time of deceleration, it charges by regenerative power generation with an electric motor. In this way, the motor is skillfully used in driving conditions that the engine is not good at, and when the engine is operating, it is operated efficiently and surplus driving force is used for charging.

  As a result, the traveling of the hybrid vehicle is controlled in a complicated manner compared to the traveling of the automobile that runs only by the engine, and thus a display device that can effectively recognize the complicated traveling state to the driver is required. It has become.

  For example, as a display device for a hybrid vehicle, the vehicle speed is displayed on the horizontal axis, and the storage battery output from the storage battery for operating the electric motor and the engine output from the engine are displayed on the vertical axis. Has been disclosed (see Patent Document 1).

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

  This display device is intended to recognize the traveling state of the hybrid vehicle as a ratio of the storage battery output to the engine output and the vehicle speed by two-dimensional vision.

  In addition, a charge / discharge display unit that displays the electric motor separately in a charge state by regenerative power generation and a power consumption state (discharge state) that generates driving force, a storage battery display unit that displays a storage amount of the storage battery, and a remaining amount of fuel There has been disclosed a display device that includes a fuel display unit that displays a quantity as one instrument (see Patent Document 2).

This display device is intended to recognize the traveling state of the hybrid vehicle as the operating state of the electric motor and the storage amount of the storage battery which are displayed separately in the charged state and the discharged state.
JP 2005-35413 A JP 2001-27321 A

  The driver expects an ecological feeling (economy and ecology) for the hybrid vehicle. This ecological 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 is obtained by decreasing the engine output, that is, by increasing the output from the electric motor, that is, by increasing the power consumption from the storage battery, and as a result, a satisfactory feeling is obtained.

  However, if the power consumption from the storage battery is increased, the amount of electricity stored in the storage battery decreases, so the driver feels uneasy about the amount of electricity stored in the storage battery.

  When the driver feels uneasy about the amount of stored electricity, the driver desires to increase the engine output and reduce the power consumption from the storage battery even at the expense of ecological feeling. As a result, the amount of electricity stored in the storage battery can be prevented from decreasing, and a sense of satisfaction can be obtained with respect to sacrificing the feeling of ecology.

  Furthermore, if the storage battery can be charged by the electric motor, the driver can obtain a sense of security and a sense of convincing.

  That is, the driver desires to obtain a sense of security even at the expense of the ecological feeling in a situation where a sense of security is not obtained, and can obtain a sense of convincing if a sense of security is obtained in this situation. On the other hand, the driver desires to obtain an ecological feeling under a situation where a sense of security is obtained. If the ecological feeling is obtained under this situation, the driver can obtain a sense of satisfaction.

  In other words, in the hybrid vehicle, it is necessary to make the driver recognize whether or not the vehicle is in a traveling state in which a sense of satisfaction is obtained in a balance between an ecological feeling and a sense of security.

  It is possible to recognize whether or not the vehicle is in a traveling state where a sense of ecology is obtained from the information on the power consumption from the storage battery by the electric motor, the information on the storage state of the storage battery, the information on the operating state of the engine, and the charging It is possible to recognize whether or not the traveling state provides a sense of security based on the information, and it is possible to recognize whether or not the traveling state provides a satisfactory feeling based on all of the information. By recognizing these pieces of information in association with each other, the driver can recognize whether or not the vehicle is in a traveling state in which a sense of satisfaction is obtained in a balance between ecological feeling and security.

  For this reason, the display device for a hybrid vehicle needs to recognize these pieces of information in association with each other rather than allowing the driver to recognize them individually.

  However, in patent document 1, a driver | operator cannot be made to recognize the electrical storage state of a storage battery. For this reason, even if it can recognize that it is the driving | running | working state in which the ecological feeling is acquired, it is uneasy about an electrical storage state, and it cannot be made to recognize whether it is the driving | running state in which the sense of security is acquired.

  On the other hand, in Patent Document 2, it is not possible for the driver to recognize information on the operating state of the engine. For this reason, when it is recognized by the display of the storage battery display unit that the amount of stored electricity is small, it cannot be recognized whether the engine output is increased in order to increase the stored amount of electricity. As a result, when it is recognized that the amount of stored power is small, it is not possible to recognize whether or not the traveling state provides a sense of security.

  In addition, simply arranging both display devices disclosed in Patent Document 1 and Patent Document 2 is difficult to make these pieces of information associated with each other, so that a sense of security can be obtained. It is difficult to recognize whether the vehicle is in a running state.

  The present invention has been made in view of the above points, and includes information on power consumption from a storage battery by an electric motor, information on charging of the storage battery by an electric motor, information on a storage state of the storage battery, and information on an operating state of the engine. It is an object of the present invention to provide a display device for a hybrid electric vehicle that can be recognized in association with each other.

  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 distinguishing and displaying a power consumption state in which an operating state of an electric motor generates a driving force by power from a storage battery and a charge state in which the storage battery is charged; and a first indicator that displays a storage state of the storage battery 2 indicators, and a 3rd indicator which displays the operating state of an engine, It is characterized by the above-mentioned.

  Accordingly, a hybrid capable of recognizing the information on the power consumption from the storage battery by the motor, the information on the charging of the storage battery by the motor, the information on the storage state of the storage battery, and the information on the operating state of the engine in association with each other. A display device for an electric vehicle can be provided.

  According to a second aspect of the present invention, there is provided a display device for a hybrid electric vehicle, wherein the first display is configured to display the operating state of the electric motor as the rotational speed of the electric motor.

  In this configuration, since the operating state of the electric motor is displayed as the rotation speed of the electric motor, the operating state of the electric motor can be recognized more accurately.

  The display device for a hybrid electric vehicle according to claim 3 is configured such that the second indicator displays the storage state of the storage battery as the storage amount of the storage battery.

  In this configuration, since the second indicator displays the storage state of the storage battery as the storage amount of the storage battery, the storage state can be recognized more accurately.

  According to a fourth aspect of the present invention, there is provided a display device for a hybrid electric vehicle, wherein the third indicator is configured to display the operating state of the engine as the engine speed.

  In this configuration, since the third indicator displays the operating state of the engine as the engine speed, the operating state of the engine can be recognized more accurately.

  The display device for a hybrid electric vehicle according to claim 5 is characterized in that the first display, the second display, and the third display are configured as one display.

  In this configuration, the first display, the second display, and the third display are configured as a single display. Thereby, it is possible to associate and recognize information on power consumption from the storage battery by the motor, information on charging of the storage battery by the motor, information on the storage state of the storage battery, and information on the operating state of the engine. A display device for a hybrid electric vehicle can be provided.

  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 that 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 circuit configuration diagram illustrating an electrical circuit configuration of the combination meter 10 shown in FIG.

  A hybrid vehicle 1 which is a hybrid electric vehicle has the main system configuration shown in FIG. At the start of the hybrid vehicle 1, the electric motor 2 that is an electric motor is operated by the electric power from the high-voltage battery 3 that is a storage battery, and drives the drive wheels 8 via the transmission 7. The inverter 6 converts the DC power from the high voltage battery 3 into AC power and drives the electric motor 2.

  During acceleration, both the engine 4 and the electric motor 2 are operated to drive the drive wheels 8. The engine 4 drives the drive wheels 8 via the power split mechanism 5 and the transmission 7, and the electric motor 2 receives the electric power from the high voltage battery 3 via the inverter 6 and drives the drive wheels 8 via the transmission 7. To drive.

  During constant travel, the engine 4 drives the drive wheels 8 via the transmission 7 and drives the electric motor 2 via the power split mechanism 5 to generate electric power with the surplus power. The AC power generated by the electric motor 2 is converted into DC power by the inverter 6 and charged to the high voltage battery 3. The power split mechanism 5 divides the drive force generated by the engine 4 into a drive force for driving the drive wheels 8 and a drive force for driving the electric motor 2.

  At the time of deceleration, charging is performed by regenerative power generation by the electric motor 2. Regenerative power generation is power generation in which the kinetic energy of the hybrid vehicle 1 is converted into electric energy by the electric motor 2 during braking, whereby the high voltage battery 3 is charged.

  Thus, in the hybrid vehicle 1, the electric motor 2 is skillfully used under the driving conditions that the engine 4 is not good at, and when the engine 4 is operating, it is operated efficiently and surplus driving force is used for charging.

  These controls are performed by a hybrid control device 9 (FIG. 4) 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 motor tachometer 20 that is a first indicator, a battery meter 30 that is a second indicator, and an engine indicator 40 that is a third indicator.

  The motor tachometer 20 displays the operating state of the electric motor 2 by distinguishing between an electric power consumption state in which a driving force is generated by electric power from the high voltage battery 3 and a charging state in which the high voltage battery 3 is charged. A dial 21 and a pointer 22 for rotating the front side (upper surface in FIG. 3) of the viewing side are provided.

  The dial 21 is formed of a translucent material, for example, a plate material such as a colorless and transparent polycarbonate resin. The dial 21 has character portions 21a, 21b, 21c, and a scale portion 21d (character 21a) on the front side of the driver side. Is between “0” and “6”), a character part 31 and a battery display part 32 of a battery meter 30 to be described later, and a character part 41 and an engine display part 42 of an engine indicator 40 to be described later are white light-transmitting. It is formed to be in a state. Further, the scale portion 21d (character 21a is between “6” and “8”) is formed so as to be in a red light-transmitting state, and the scale portion 21e is formed so as to be in a blue light-transmitting state. .

  These background portions are formed so as to be in a black opaque state (or in a state where black transparency 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) Movement 23, light emitting diodes 22b, 24, 33, 43, case 51, and printed circuit board 52 are arranged. The printed circuit board 52 constitutes an electric circuit unit of the combination meter 10, and the movement 23 and the light emitting diodes 22 b, 24, 33, and 43 are mounted on the printed circuit board 52.

  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 51 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 light from the light emitting diodes 24, 33, and 43 to the dial 21. The case 51 has a white inner peripheral surface, the light of the light emitting diode 22b is reflected by the inner peripheral surface of the case 51 and guided in the direction of the pointer 22, and the light emitting diodes 24, 33, 43 Light is reflected from the inner peripheral surface of the case 51 and guided to the dial 21.

  The pointer 22 is formed of a translucent material such as acrylic resin and has a white layer on the front surface of the pointer 3 so that the white light emitted from the light emitting diode 22b incident on the pointer 22 is displayed in white. 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 is operating in a power consumption state in which the electric motor 2 generates a driving force by the electric power from the high-voltage battery 3, the pointer 22 rotates according to the number of rotations of the electric motor 2 along the scale portion 21d. . On the other hand, when the electric motor 2 operates in a charging state in which the high-voltage battery 3 is charged, the electric motor 2 runs along the scale portion 21d in the direction opposite to that when the electric motor 2 operates in the power consumption state. It rotates according to the number of rotations.

  The battery meter 30 displays the storage state of the high voltage battery 3. In FIG. 3, the light emitting diode 33 disposed behind the battery display unit 32 includes a light emitting diode that emits green light, a light emitting diode that emits yellow light, and a light emitting diode that emits red light.

  The storage state of the high-voltage battery 3 is divided into three stages. When the storage state is sufficient, a light emitting diode that emits green light is turned on. When the storage state is insufficient, a light emitting diode that emits red light is turned on. When the power storage state is in the intermediate stage, the light emitting diode emitting yellow light is turned on. As a result, the battery display unit 32 displays light emission in green when the power storage state is sufficient, displays light emission in red when the power storage state is insufficient, and displays light emission in yellow when the power storage state is intermediate.

  The engine indicator 40 displays the operating state of the engine 4. In FIG. 3, a light emitting diode 43 disposed behind the engine display unit 32 is a light emitting diode that emits orange light.

  The light emitting diode 43 is turned on when the engine 4 is operating, and is turned off when the engine 4 is stopped. As a result, the engine display unit 42 is lit in orange when the engine 4 is operating and is extinguished when the engine 4 is stopped.

  The on / off control of the light emitting diodes 22b, 24, 33, and 43 and the drive control of the movement 23 are performed by a meter control device 53 (FIG. 4) constituted 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 can input the information signal of the operation state of the electric motor 2 to the meter control device 53 by distinguishing between the power consumption state and the charge state, and the storage state of the high-voltage battery 3. The information signal and the information signal of the operating state of the engine 4 are configured to be input to the meter control device 53.

  The meter control device 53 is configured to perform turning on / off control of the light emitting diodes 22b, 24, 33, and 43 and drive control of the movement 23 based on these signals input from the hybrid control device 9.

  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. 4, the meter control device 53 performs on / off control of the light emitting diodes 22 b, 24, 33, and 43 and drive control of the movement 23 based on a 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 the start The meter control device 53 receives from the hybrid control device 9 the information signal indicating that the electric motor 2 and the engine 4 are stopped and the information signal indicating the storage state of the high-voltage battery 3, and the light-emitting diodes 22b, 24, and 33 Turn on the light-emitting diode 43, and control the movement 23 so that the pointer 22 points to “0” of the character 21a in FIG. However, on the basis of the information signal from the hybrid controller 9, the light emitting diodes that emit any one of green, yellow, and red light are turned on and the light emitting diodes that emit other colors are turned off. To do.

  The white light emitted from the light emitting diode 22b is guided to the case 51 and introduced into the pointer 22 in FIG. 3, and the pointer 22 is lit and displayed in white.

  Moreover, the white light of the light-emitting diode 24 turned on is guided to the case 51 and illuminates the character portions 21a, 21b, 21c, 31, 41 and the scale portions 21d, 21e. As a result, the character portions 21a, 21b, 21c, 31, 41 and the scale portion 21d (character 21a is between “0” and “6”) are lit in white, and the scale portion 21d (character 21a is “0”). “Between“ 6 ”) is displayed in red, and the scale portion 21e is displayed in blue.

  When the state of charge is sufficient, a light emitting diode that emits green light is turned on, and the battery display unit 32 emits light in green.

  As described above, before the hybrid vehicle 1 starts, the character portions 21a, 21b, 21c, 31, 41 and the scale portion 21d (character 21a is between “0” and “6” with the black background in FIG. ) In white, the scale portion 21d (character 21a is between “0” and “6”) is lit in red, and the scale portion 21e is lit in blue.

  Since the pointer that emits light in white indicates “0” of the character 21a, the driver can recognize that the electric motor 2 is stopped, and the battery display unit 32 of the battery meter 30 emits light in green. Therefore, it is possible to make the driver recognize that the storage state of the high voltage battery 3 is sufficient. Moreover, since the engine display part 42 of the engine indicator 40 does not perform light emission display, the driver can be made aware that the engine 4 is stopped.

(2) Starting time The meter control device 53 receives from the hybrid control device 9 a signal of information that the electric motor 2 is driven in the power consumption state, and drives the movement 23 based on this signal. That is, in FIG. 2, the pointer 22 is rotated along the scale portion 21d according to the number of rotations of the electric motor 2.

  At this time, the driver recognizes from the battery meter 30 that the state of charge of the high voltage battery 3 is sufficient, and is thus in a state of getting a sense of security. The driver recognizes this sense of security by the battery meter 30 and the motor tachometer 20 drives the electric motor 2 in the power consumption state, and the engine indicator 40 indicates that the engine 4 is stopped. Are recognized at the same time. For this reason, in a situation where a sense of security is obtained, an ecological feeling can be obtained and a satisfactory feeling can be obtained.

(3) Acceleration The meter control device 53 receives from the hybrid control device 9 an information signal that the electric motor 2 is driven in the power consumption state and an information signal that the engine 4 is operating, and based on this signal Then, the movement 23 is driven and the light emitting diode 43 emitting orange light is turned on. That is, in FIG. 2, the pointer 22 is rotated along the scale portion 21d according to the number of rotations of the electric motor 2, and the engine display portion 42 of the engine indicator 40 is lit and displayed in orange.

  At this time, the driver can simultaneously recognize that the electric motor 2 is driven in the power consumption state by the motor tachometer 20 and the engine 4 is in operation by the engine indicator 40. For this reason, the driver recognizes that the feeling of acceleration can be obtained by the operation of both the electric motor 2 and the engine 4, and can obtain a satisfactory feeling.

(4) During constant running The meter control device 53 receives from the hybrid control device 9 an information signal that the electric motor 2 is driven in a charged state and an information signal that the engine 4 is operating, and based on this signal Then, the movement 23 is driven and the light emitting diode 43 is turned on. That is, in FIG. 2, the pointer 22 is rotated in the direction opposite to that when operating in the power consumption state along the scale portion 21 e according to the rotational speed of the electric motor 2, and the engine indicator 40 displays the engine. The unit 42 is lit and displayed in orange.

  At this time, the driver recognizes that the electric motor 2 is driven in a charged state by the motor tachometer 20, and recognizes that the electric storage state of the high voltage battery 3 is being increased. In particular, when the state of charge is not sufficient, that is, when the battery display unit 32 is emitting light in yellow, the pointer 22 rotates the rotational speed of the electric motor 2 in a larger direction along the scale unit 21e. In this way, the driver can feel more secure. However, in this case, since the operation of the engine 4 is increased, the ecological feeling is sacrificed.

  On the other hand, when the battery display unit 32 emits light in green, if the pointer 22 rotates the rotational speed of the electric motor 2 in a smaller direction along the scale unit 21e, that is, the operation of the engine 4 is performed. If it decreases, the driver can obtain a more ecological feeling.

(5) At the time of deceleration The meter control device 53 receives from the hybrid control device 9 an information signal indicating that the electric motor 2 is driven in a charged state and an information signal indicating that the engine 4 is stopped. The movement 23 is driven and the light emitting diode 43 is extinguished. That is, in FIG. 2, the pointer 22 is rotated in the direction opposite to that when operating in the power consumption state along the scale portion 21 e according to the rotational speed of the electric motor 2, and the engine indicator 40 displays the engine. The part 42 is turned off.

  At this time, the driver recognizes that the electric motor 2 is driven in a charged state by the motor tachometer 20, and this charging causes the electric motor 2 to convert the kinetic energy of the hybrid vehicle 1 into electric energy. Recognize that regenerative power generation. As a result, the driver can obtain an ecological feeling as well as a sense of security, and can obtain a more satisfying feeling.

  As mentioned above, the driver wants to get a sense of security even at the expense of eco-friendliness in situations where a sense of security cannot be obtained. it can. On the other hand, the driver desires to obtain an ecological feeling under a situation where a sense of security is obtained. If the ecological feeling is obtained under this situation, the driver can obtain a sense of satisfaction.

  The combination meter 10 does not cause the driver to individually recognize information obtained from the motor tachometer 20, the battery meter 30, and the engine indicator 40 provided as a single instrument. Can be recognized at the same time. As a result, the combination meter 10 can make the driver recognize at each moment whether or not the driving state is satisfactory in the balance between ecological feeling and security.

(Modification)
FIG. 5 is a front view showing a first modification of the combination meter 10 shown in FIG.

  In the first modification, as shown in FIG. 5, in the battery meter 30, the storage state of the high-voltage battery 3 is displayed as a storage amount in a bar graph, and the operating state of the engine 4 is displayed instead of the engine indicator 40. An engine tachometer 40 is provided for displaying the number of revolutions.

  Thereby, a driver | operator can be made to recognize more correctly the electrical storage state of the high voltage battery 3, and the operating state of the engine 4. FIG. As a result, the combination meter 10 according to the first modified example can more accurately determine whether or not the driving state is satisfactory in terms of the balance between ecological feeling and security at each moment. Can be recognized.

  In addition, the motor tachometer 20 can be provided as an indicator that displays three states of a power consumption state, a charge state, and a stop state.

  FIG. 6 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. 6, unlike the above-described example, the motor tachometer 20, the battery meter 30, and the engine indicator 40 are provided as separate meters and arranged adjacent to each other.

  Thereby, the respective information obtained from the motor tachometer 20, the battery meter 30 and the engine indicator 40 can be associated with each other at the same time instead of being individually recognized by the driver. As a result, also in the second modified example, the combination meter 10 allows the driver to recognize whether or not the driving state is satisfactory in the balance between ecological feeling and security. Can do.

  In the above-described example, in FIG. 1, the engine 4 operates the electric motor 2 to generate electric power. However, a configuration may be adopted in which a generator is newly provided to generate electric power. In this case, the state of charge by the electric motor 2 is limited to the state of charge by regenerative power generation.

  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 that travels using both the electric motor 2 that is an electric motor that generates driving force by electric power and the engine 4 that generates driving force by an internal combustion engine. A combination meter 10 for use in a hybrid vehicle 1 that is an electric vehicle, in which the operating state of the electric motor 2 is charged to a power consumption state in which a driving force is generated by the power from the high voltage battery 3 that is a storage battery, and the high voltage battery 3 is charged The motor tachometer 20 that is a first display that displays the state of charge separately from the state of charge to be performed, the battery meter 30 that is a second display that displays the storage state of the high-voltage battery 3, and the operating state of the engine 4 are displayed. The engine indicator 40 which is a 3rd indicator is provided.

  Accordingly, a hybrid capable of recognizing the information on the power consumption from the storage battery by the motor, the information on the charging of the storage battery by the motor, the information on the storage state of the storage battery, and the information on the operating state of the engine in association with each other. A display device for an electric vehicle can be provided.

  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 circuit configuration diagram illustrating an electrical 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. 6 is a front view showing a second modification of the combination meter 10 shown in FIG.

Explanation of symbols

1 Hybrid vehicle (hybrid electric vehicle)
2 Electric motor (electric motor), 3 High voltage battery (storage battery), 4 Engine 5 Power split mechanism, 6 Inverter, 7 Transmission 8 Drive wheel, 9 Hybrid control device 10 Combination meter (Display device for hybrid electric vehicle)
20 Motor tachometer (first display), 21 Dial 21a, 21b, 21c, 31, 41 Character part, 21d, 21e Scale part 22, 34, 44 Pointer, 22a Shading cap 23 Movement, 23a Shaft,
22b, 24, 33, 43 Light emitting diode, 25 Through hole 30 Battery meter (second display), 32 Battery display unit 40 Engine indicator (engine tachometer, third display unit), 42 Engine display unit 51 Case, 52 Print Substrate, 53 meter control device

Claims (5)

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 that displays the operating state of the motor by distinguishing between a power consumption state in which a driving force is generated by power from the storage battery and a charging state in which the storage battery is charged;
A second indicator for displaying a storage state of the storage battery;
A display device for a hybrid electric vehicle, comprising: a third display for displaying an operating state of the engine.   The display device for a hybrid electric vehicle according to claim 1, wherein the first display is configured to display an operating state of the electric motor as a rotation speed of the electric motor.   3. The display device for a hybrid electric vehicle according to claim 1, wherein the second display is configured to display a storage state of the storage battery as a storage amount of the storage battery. 4.   The hybrid electric vehicle according to any one of claims 1 to 3, wherein the third indicator is configured to display an operating state of the engine as a rotational speed of the engine. Display device.   The said 1st indicator, the said 2nd indicator, and the said 3rd indicator are comprised as one indicator, The Claim 1 thru | or 4 characterized by the above-mentioned. Display device for hybrid electric vehicles.

Images