JP5929162B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a display device for a vehicle that displays an aspect of the vehicle using an instrument or the like provided in the vehicle when the vehicle is started.

  Generally, a start switch of a vehicle has a LOCK position where a steering wheel is locked, an ACC position where an audio or an accessory socket can be used, an ON position where the power source is operating, and a START position where the power source is activated. . When the start switch is switched to the START position by the driver, the power source is activated. Moreover, various instruments (meters) and indicator lamps provided on the instrument panel of the vehicle each perform a set display.

  A vehicle that uses a motor that operates by supplying power from a battery as a power source, a so-called electric vehicle, can travel when current flows from the battery to the motor. For this reason, even if it can run, it is silent and hardly experiences vibration. Therefore, the driver usually confirms that the vehicle can travel from the display state of the instrument and the indicator lamp.

  For example, there is a power meter as one of the instruments provided in an electric vehicle. While the vehicle is running, the power meter displays the amount of discharge when the battery is discharged, and the amount of charge when the battery is charged. When the vehicle is ready to run, the power meter pointer points to a predetermined reference position, so that the driver can recognize that the vehicle is ready to run because the power meter pointer points to the reference position ( For example, see Patent Document 1).

  In addition, in an electric vehicle, when the vehicle is ready to travel, a technique is also known in which a key for operating a start switch is vibrated to notify the driver of the travelable state (see, for example, Patent Document 2).

JP 2008-114791 A JP-A-2005-006437

  As described above, it is possible to notify the driver that the vehicle is ready to travel using an instrument, an indicator lamp, or the like included in the vehicle. Further, while the vehicle is running, the driver can visually confirm the state of the vehicle from the movement of the pointer of the instrument.

  However, when the vehicle starts up, the instrument has a predetermined mode, for example, whether the remaining capacity of the battery is sufficient, or whether the specifications of the installed program are compatible The technology for notifying the driver of whether or not is not yet known.

  The present invention has been made based on such circumstances. The purpose of the present invention is to drive a predetermined mode of the vehicle by using an instrument provided in the vehicle when the vehicle is started. It is an object of the present invention to provide a display device for a vehicle that can notify a person or the like and can eliminate the need for a dedicated tool for confirming the above aspect.

A first invention of the present application is a display device for a vehicle that uses a motor that operates by supplying power from a battery as a power source, and stores a display pattern of the display device that is set according to the mode of the vehicle; recognizing the aspect of the vehicle in response to the activation of the vehicle, the display pattern determined based on the recognized the embodiment, a control means for displaying the display pattern the determined on the display device, wherein Comprising a meter that indicates the mode of the vehicle by movement of the pointer,
After starting, the indicator of the instrument is moved from the reference position to the determined display pattern, and then displayed so as to return to the reference position .

In this invention, one aspect of the vehicle is a charge level of the battery.
Another form of the vehicle is a type of program for defining the operation of a computer mounted on the vehicle.
Before SL instrument, the amount of discharge during the discharge of the battery, during charging a power meter showing the motion of the pointer charge amount.

  ADVANTAGE OF THE INVENTION According to this invention, when a vehicle starts, a predetermined | prescribed aspect which a vehicle has can be notified to a driver | operator etc. using an instrument etc. Therefore, a dedicated tool for confirming the aspect can be eliminated, and the cost can be reduced.

The schematic diagram which shows schematic structure of the electric vehicle which is one Embodiment of this invention. The block diagram which shows the principal part structure of the control box mounted in the same electric vehicle. The schematic diagram which shows the main area | regions formed in the memory with which EV-ECU of the control box mounted in the same electric vehicle is equipped. The flowchart which shows the principal part of the process sequence which EV-ECU of the control box mounted in the same electric vehicle performs according to a starting program. The flowchart which shows the specific procedure of the vehicle mode division | segmentation determination process of step ST5 in FIG. The schematic diagram which shows an example of the power meter mounted in the same electric vehicle. The schematic diagram which shows the motion of the pointer of a power meter when "P-> S" is set as an initial display pattern. The schematic diagram which shows the motion of the pointer of a power meter when "E-> S" is set as an initial display pattern. The schematic diagram which shows the motion of the pointer of a power meter when "C-> S" is set as an initial display pattern. The schematic diagram which shows the main area | regions formed in the memory with which EV-ECU of a control box is provided in the 2nd Embodiment of this invention. The flowchart which shows the specific procedure of the vehicle mode division | segmentation determination process of step ST5 in the said 2nd Embodiment.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. This embodiment is a case where the present invention is applied to a vehicle using a motor that operates by supplying power from a battery as a power source, a so-called electric vehicle.

(First embodiment)
First, when a vehicle is started, as a mode of the vehicle, a charge level of a motor driving battery mounted on an electric vehicle is notified to a driver or the like using a power meter. Will be described with reference to FIGS.

  FIG. 1 is a schematic diagram showing a schematic configuration of an electric vehicle 1 that is a vehicle of the present embodiment. The electric vehicle 1 includes a traveling motor 11, a high voltage battery 12, an inverter 13, a charger 14, and a control box 15.

  The battery 12 is configured to obtain a high voltage of 100 volts or more by connecting a plurality of cells in series. The power output from the battery 12 is supplied to the motor 11 via the inverter 13. . The battery 12 is charged by the action of the charger 14. The charger 14 charges the battery 12 with electric power supplied from a commercial power supply via a charging cable (not shown).

  The inverter 13 converts the electric power supplied from the battery 12 into electric power for driving the motor 11 and supplies the electric power to the motor 11. The motor 11 to which the driving power is supplied rotates the front wheels 22 that are driving wheels via the power transmission mechanism 21. As the front wheel 22 rotates, the rear wheel 23 rotates and the vehicle 1 travels. Here, the electric vehicle 1 is a vehicle that uses a motor 11 that operates by power supply from a battery 12 as a power source.

  At least a start switch 24, an accelerator pedal 25, a brake pedal 26 and an instrument panel 27 are connected to the control box 15. FIG. 2 is a block diagram showing a main configuration of the control box 15. As shown, the control box 15 includes an EV-ECU (Electric Vehicle-Electric Control Unit) 31, a motor ECU (Electric Control Unit) 32, a battery ECU 33 and a meter ECU 34, a position sensor 35 of the start switch 24, and an accelerator pedal 25. Pedal force sensor 36 and brake pedal 26 pedal force sensor 37. Each of the ECUs 31, 32, 33, and 34 is an electronic control device configured by a microcomputer, and is provided as an LSI device in which a microprocessor, a memory, and the like are integrated.

  The position sensor 35 detects the position of the start switch 24 that can be rotated by an ignition key. And detection information is output to EV-ECU31. The position of the start switch 24 includes a LOCK position where the handle is locked, an ACC position where an audio or an accessory socket can be used, an ON position where the power source is operating, and a START position where the power source is activated. The start switch 24 may correspond to a keyless operation system in which the driver can rotate only by carrying the keyless operation key.

  The stepping force sensor 36 detects whether or not the accelerator pedal 25 is depressed and the depression force. And detection information is output to EV-ECU31. The stepping force sensor 37 detects whether or not the brake pedal 26 is depressed and the depression force. And detection information is output to EV-ECU31.

  The motor ECU 32 takes in information such as the rotation speed and temperature from the motor 11 and analyzes the information to monitor the state of the motor 11. The battery ECU 33 has a calculation function for detecting the charge level SOC of the battery 12 and a calculation function for detecting the deterioration state of the battery 12. The meter ECU 34 controls display of various instruments and indicator lights arranged on the instrument panel 27.

  A power meter 41 is one type of instrument whose display is controlled by the meter ECU 34. The power meter 41 indicates a discharge amount when the battery 12 is discharged, and indicates a charge amount when the battery 12 is charged.

  An example of the power meter 41 mounted on the electric vehicle 1 is shown in FIG. The power meter 41 indicates whether the power usage state of the vehicle is in the POWER zone 42, the ECO zone 43, or the CHG zone 44 by the movement of the pointer 45. In the present embodiment, a power meter having a pointer will be described. However, the present invention is not limited to this. For example, the segment is changed to indicate whether it is in the POWER zone 42, the ECO zone 43, or the CHG zone 44. May be.

  The pointer 45 has a reference position at a position shown in FIG. 6, that is, a position indicating the boundary between the ECO zone 43 and the CHG zone 44. In this state, when the accelerator pedal 25 is depressed, power consumption increases, and as the discharge amount of the battery 12 increases, the pointer 45 indicates the ECO zone 43 or the POWER zone 42. When the hands 45 indicate the ECO zone 43, the vehicle is traveling in the ECO mode with reduced power consumption. By maintaining this ECO mode, the electric vehicle 1 can travel a long distance. On the other hand, when the accelerator pedal 25 is released or the brake pedal 26 is depressed to decelerate and the battery 12 is charged with the charging power generated by the regenerative brake, the pointer 45 indicates the CHG zone.

  The EV-ECU 31 comprehensively manages the motor ECU 32, the battery ECU 33, and the meter ECU 34 according to the installed control program based on the detection signals input from the position sensor 35, the pedal force sensors 36, 37, etc. Control. Incidentally, the specifications of the control program differ depending on the destination of the electric vehicle 1.

  The EV-ECU 31 has a nonvolatile memory 50. In this memory 50, as shown in FIG. 3, the area as the initial display mode flag 51, the area as the status memory 52, the area as the initial display pattern table 53 for each status, and the status according to the vehicle mode classification An area as a table 54 is formed.

  The initial display mode flag 51 is set when a so-called initial display mode, which is a mode for notifying the driver of a predetermined mode of the vehicle using a meter when the vehicle is ready to travel, is set.

  The electric vehicle 1 of this embodiment has a mode switch for selecting whether to enable or disable the initial display mode. The mode switch may be a soft switch or a mechanical switch. The user determines whether to enable or disable the function of notifying the driver of the charge level of the battery 12 using the power meter 41 when the electric vehicle 1 is started. Then, the mode switch is set so as to select that the initial display mode is enabled when it is enabled, and to select that the initial display mode is disabled when it is disabled. The EV-ECU 31 sets an initial display mode flag 51 when the mode switch is selected to enable the initial display mode. Conversely, when it is selected that the initial display mode is invalidated, the initial display mode flag 51 is reset.

  The status memory 52 stores a status obtained by quantifying the aspect of the vehicle. In this embodiment, a binary 2-digit numerical value is used as the status. The initial display pattern table 53 stores the initial display pattern of the power meter 41 set for each status, for each status. The status table 54 stores the status set for each category of the vehicle mode for each category.

  As described above, in the present embodiment, when the initial display mode is valid, the charge level of the battery 12 is notified to the driver or the like using the power meter 41 as an aspect of the electric vehicle 1. Therefore, in the present embodiment, the charge level SOC of the battery 12 is divided into three stages by two types of threshold values Clo and Chi (Clo: low level threshold value <Chi: high level threshold value). The status when the charge level SOC is equal to or higher than the high level threshold Chi is set to “01”, and the status when the charge level SOC is lower than the high level threshold Chi and equal to or higher than the low level threshold Clo is set to “10”. Then, the status when it is less than the low level threshold value Clo is set to “11”.

  The initial display pattern when the status is “01” is the pattern “P → S” that returns from the POWER zone to the reference position, and the initial display pattern when the status is “10” is the pattern that returns from the ECO zone to the reference position. E → S ”, and the initial display pattern when the status is“ 11 ”is a pattern“ C → S ”that returns from the CHG zone to the reference position. The default value of the status is “00”, and the initial display pattern at this time is the pattern “S” indicating the reference position.

  Here, the initial display pattern table 53 and the status table 54 constitute storage means for storing data indicating the pointer operation pattern of the power meter 41 set for each charge level of the battery 12 which is an aspect of the electric vehicle 1.

  Thus, when the start switch 24 in the LOCK position is switched to the ON position, power is supplied to the control box 15 and the EV-ECU 31 and the like are started up. If it does so, EV-ECU31 will perform the process of the procedure shown in the flowchart of FIG. 4 by the starting program mounted previously.

  First, the EV-ECU 31 stores the default value “00” of the status in the status memory 52 as step ST1. Next, the EV-ECU 31 checks the initial display mode flag 51 as step ST2 to determine whether the initial display mode is valid or invalid.

  When the initial display mode flag 51 is reset and the initial display mode is invalid (NO in ST2), the EV-ECU 31 waits for a travelable state as step ST3. When start switch 24 is switched to the START position and electric power from battery 12 is supplied to motor 11 via inverter 13 and electric vehicle 1 is ready to travel (YES in ST3), EV-ECU 31 performs step ST6. The initial display pattern corresponding to the status is implemented.

  That is, in this case, since the status stored in the status memory 52 is “00”, the EV-ECU 31 reads the initial display pattern “S” from the initial display pattern table 53. This pattern indicates a reference position. That is, the EV-ECU 31 controls the meter ECU 34 so as to position the pointer 45 of the power meter 41 at the reference position as shown in FIG.

  On the other hand, when initial display mode flag 51 is set and initial display mode is valid (YES in ST2), EV-ECU 31 waits for the vehicle to enter a travelable state as step ST4. When start switch 24 is switched to the START position and electric power from battery 12 is supplied to motor 11 via inverter 13 and electric vehicle 1 is ready to travel (YES in ST4), EV-ECU 31 performs step ST5. As shown in the flowchart of FIG.

  That is, the EV-ECU 31 acquires the charge level SOC of the battery 12 calculated by the battery ECU 33 as step ST11. In step ST12, it is determined whether or not the charge level SOC is equal to or higher than the high level threshold Chi. When charge level SOC is equal to or higher than high level threshold value Chi (YES in ST12), EV-ECU 31 rewrites the status in status memory 52 to “01” as step ST14.

  In contrast, when charge level SOC is less than high level threshold value Chi (NO in ST12), EV-ECU 31 determines in step ST13 whether charge level SOC is higher than low level threshold value Chi or not. . When charge level SOC is higher than low level threshold value Chi (YES in ST13), EV-ECU 31 rewrites the status of status memory 52 to “10” as step ST15. On the other hand, when charge level SOC is equal to or lower than low level threshold value Chi (NO in ST13), EV-ECU 31 rewrites the status of status memory 52 to “11” as step ST16. Above, a vehicle mode division determination process is complete | finished.

  When the vehicle mode classification determination process ends, the EV-ECU 31 performs an initial display pattern corresponding to the status as step ST6. That is, when the charge level SOC of the battery 12 is equal to or higher than the high level threshold Chi, the status of the status memory 52 is “01”, so that the EV-ECU 31 reads the initial display pattern “P → S from the initial display pattern table 53. "Is read. This pattern returns from the POWER zone to the reference position. That is, as shown in FIG. 7, the EV-ECU 31 controls the meter ECU 34 so that the pointer 45 of the power meter 41 is once moved to the POWER zone 42 and then positioned at the reference position.

  On the other hand, when the charge level SOC of the battery 12 is less than the high level threshold value Chi but higher than the low level threshold value Clo, the status of the status memory 52 is “10”. The initial display pattern “E → S” is read from the initial display pattern table 53. This pattern returns from the ECO zone to the reference position. That is, as shown in FIG. 8, the EV-ECU 31 controls the meter ECU 34 so that the pointer 45 of the power meter 41 is once moved to the ECO zone 43 and then positioned at the reference position.

  When the charge level SOC of the battery 12 is equal to or lower than the low level threshold value Clo, the status of the status memory 52 is “11”, so that the EV-ECU 31 determines that the initial display pattern “C” → Read S ″. This pattern is a pattern that returns from the CHG zone to the reference position. That is, as shown in FIG. 9, the EV-ECU 31 controls the meter ECU 34 so that the pointer 45 of the power meter 41 is once moved to the CHG zone 44 and then positioned at the reference position.

  Here, the EV-ECU 31 constitutes a recognizing unit that recognizes the charge level of the battery 12 that is an aspect of the vehicle in accordance with the activation of the electric vehicle 1 by the processing of steps ST4 to ST5. Further, by the processing in step ST6, the pointer operation pattern of the power meter 41 is determined from the mode recognized by the recognition unit and the data stored in the storage unit (initial display pattern table 53, status table 54), and the pointer operation is performed. Control means for operating the pointer 45 of the power meter 41 according to the pattern is configured.

  Thus, in the electric vehicle 1 of the present embodiment, when the driver switches the start switch 24 to the START position, for example, when the electric power from the battery 12 is supplied to the motor 11 and the vehicle is ready to run, The indicator 45 of the power meter 41 operates according to the charge level of the battery 12 at. That is, when the charge level is equal to or higher than the high level threshold value Chi, as shown in FIG. 7, the pointer 45 swings to the POWER zone 42 and then returns to the reference position. When the charge level is lower than the high level threshold value Chi but higher than the low level threshold value Clo, the pointer 45 swings to the ECO zone 43 as shown in FIG. On the other hand, when the charge level is equal to or lower than the low level threshold value Clo, the pointer 45 swings to the CHG zone 44 as shown in FIG.

  Thus, for example, the driver can know the charge level of the battery 12 by the movement of the pointer 45 of the power meter 41 when the electric vehicle 1 is activated. That is, when the pointer 45 swings toward the POWER zone 42 or the ECO zone 43 indicating the discharging state of the battery 12 during traveling, the battery 12 does not need to be charged, but the CHG zone indicating the charging state of the battery 12 When it swings to the side of 44, it can be known that the battery 12 needs to be charged. Thus, even if there is no dedicated tool for confirming the charge level of the battery 12, for example, the driver can know the charge level of the battery 12, so the cost required to install the dedicated tool. Can be reduced.

  In this embodiment, the power meter is used to display the display pattern. However, the present invention is not limited to this. For example, the display lamp may be blinked according to the pattern.

(Second Embodiment)
The control program implemented in the electric vehicle 1 has different specifications for each destination in consideration of the climate, regional characteristics, and the like. Then, next, as a mode of the vehicle, a second embodiment in which the type of control program that is different for each destination is notified to the driver using a power meter will be described with reference to FIGS. 10 to 11. To do. 1, 2, 4, and 6 to 9 are common to the second embodiment, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 10 shows an initial display pattern table 61 for each status and a status table 62 for each vehicle mode, which are formed in the memory 50 of the EV-ECU 31. The memory 50 is further formed with an area as the initial display mode flag 51 and an area as the status memory 52 as in the first embodiment.

  In the second embodiment, the status is a binary 3-digit numerical value. For the statuses “000” and “100”, the initial display pattern is the pattern “S” indicating the reference position, and for the status “001”, the initial display pattern is the pattern “P” that returns from the POWER zone to the reference position. If the status is “010”, the initial display pattern is the pattern “E → S” that returns from the ECO zone to the reference position. If the status is “011,” the initial display pattern is changed from the CHG zone to the reference position. The return pattern is “C → S”.

  The status “001” is set for the program ID = 111 of the control program corresponding to the first destination, and the status “001” is set for the program ID = 222 of the control program corresponding to the second destination. 010 ”is set, and status“ 011 ”is set for program ID = 333 of the control program corresponding to the third destination. Further, a status “100” is set for program ID = nnn (nnn is any other than 111, 222, 333) of the control program corresponding to the other destination.

  FIG. 11 is a flowchart specifically showing the procedure of the vehicle mode classification determination process executed by the EV-ECU 31. Also in the second embodiment, when the EV-ECU 31 is started up, the EV-ECU 31 executes the process of the procedure shown in the flowchart of FIG. Then, the EV-ECU 31 waits until the vehicle is ready to travel as step ST4. When start switch 24 is switched to the START position and electric power from battery 12 is supplied to motor 11 via inverter 13 and electric vehicle 1 is ready to travel (YES in ST4), EV-ECU 31 performs step ST5. As shown in the flowchart of FIG. 11, a vehicle mode division determination process whose procedure is specifically shown is executed.

  That is, the EV-ECU 31 recognizes the program ID of the control program as step ST21. In step ST22, it is determined whether or not the program ID matches the program ID = 111 of the control program corresponding to the first destination. When the program ID is 111 (YES in ST22), EV-ECU 31 rewrites the status in status memory 52 to “001” as step ST25.

  On the other hand, when the program ID is not 111 (NO in ST22), EV-ECU 31 determines in step ST23 whether the program ID matches program ID = 222 of the control program corresponding to the second destination. Determine whether. When the program ID is 222 (YES in ST23), EV-ECU 31 rewrites the status in status memory 52 to “010” as step ST26.

  When the program ID is not 222 (NO in ST23), EV-ECU 31 determines in step ST24 whether or not the program ID matches program ID = 333 of the control program corresponding to the third destination. To do. When the program ID is 333 (YES in ST24), EV-ECU 31 rewrites the status in status memory 52 to “011” as step ST27.

  When the program ID is not 333 (NO in ST24), EV-ECU 31 rewrites the status in status memory 52 to “100” as step ST28. Above, a vehicle mode division determination process is complete | finished.

  When the vehicle mode classification determination process ends, the EV-ECU 31 performs an initial display pattern corresponding to the status as step ST6.

  That is, in the electric vehicle 1 in which the control program with the program ID 111 is installed, the status of the status memory 52 is “001”, and thus the EV-ECU 31 determines that the initial display pattern “C → S” "Is read. This pattern is a pattern that returns from the CHG zone to the reference position. That is, as shown in FIG. 9, the EV-ECU 31 controls the meter ECU 34 so that the pointer 45 of the power meter 41 is once moved to the CHG zone 44 and then positioned at the reference position.

  Similarly, in the electric vehicle 1 in which the control program with the program ID 222 is installed, the status of the status memory 52 is “010”, and thus the EV-ECU 31 reads the initial display pattern “E → from the initial display pattern table 53. Read S ″. This pattern returns from the ECO zone to the reference position. That is, as shown in FIG. 8, the EV-ECU 31 controls the meter ECU 34 so that the pointer 45 of the power meter 41 is once moved to the ECO zone 43 and then positioned at the reference position.

  Further, in the electric vehicle 1 in which the control program with the program ID 333 is installed, the status of the status memory 52 is “011”, so that the EV-ECU 31 reads the initial display pattern “P → S from the initial display pattern table 53. "Is read. This pattern returns from the POWER zone to the reference position. That is, as shown in FIG. 7, the EV-ECU 31 controls the meter ECU 34 so that the pointer 45 of the power meter 41 is once moved to the POWER zone 42 and then positioned at the reference position.

  In the electric vehicle 1 in which the other control program is installed, the status in the status memory 52 is “100”, so the EV-ECU 31 reads the initial display pattern “S” from the initial display pattern table 53. This pattern indicates a reference position. That is, the EV-ECU 31 controls the meter ECU 34 so as to position the pointer 45 of the power meter 41 at the reference position as shown in FIG.

  Even when the initial display mode is invalid, the status is “000”, and the initial display pattern corresponding to the status “000” is “S”. Therefore, the EV-ECU 31 has a power meter 41 as shown in FIG. The meter ECU 34 is controlled so that the pointer 45 is positioned at the reference position.

  As described above, according to the second embodiment, the type of the control program installed in the electric vehicle 1 can be identified by the movement of the pointer 45 of the power meter 41 when the electric vehicle 1 is activated.

  The control program is usually installed for each destination of the vehicle in the manufacturer of the electric vehicle 1. However, until now there was no way to confirm which destination the installed program corresponds to without a dedicated tool such as a tester.

  On the other hand, since the electric vehicle 1 equipped with the display device of the second embodiment can identify the type of the control program installed in the electric vehicle 1 without a dedicated tool, it is erroneous in the manufacturing process. Even if you install a new program, you can immediately find mistakes and correct them.

  It should be noted that the destination of the control program installed in the electric vehicle 1 corresponds to information that is necessary in the manufacturing process, but is not necessary for practical use by the user. Therefore, when the type of the control program is confirmed in the manufacturing process, the mode display is switched to invalidate the initial display mode. By doing so, when the electric vehicle 1 is started, the pointer 45 of the power meter 41 does not move greatly from the reference position, so that there is no possibility that the user will recognize that the power meter 41 is abnormal.

  The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage.

  For example, in the above-described embodiment, the start of the vehicle is defined as switching the start switch 24 to the START position and the vehicle is ready to run, but the definition of the start is not limited to this. Although the power is supplied to the control box 15 or the like by switching the start switch 24 from the LOCK position to the ON position, a state where the vehicle is not ready to travel may be defined as the start of the vehicle. In this case, the vehicle activation state determination process in steps ST3 and ST4 in FIG. 4 may be a process for determining whether or not the start switch 24 has been switched to the ON position.

  Moreover, in the said embodiment, although the charge level of the battery 12 and the kind of control program were illustrated as an aspect which a vehicle has, an aspect is not limited to this. In the case of the electric vehicle 1, it is possible to accumulate a driving history of the driver and present a driving mode (for example, ECO mode driving, POWER mode driving, etc.) suitable for the driver. Therefore, the present invention includes an embodiment in which when the vehicle is activated, the power meter 41 is used to inform the driver of a suitable driving mode.

  Moreover, although the power meter 41 was illustrated as an instrument for notifying a driver | operator etc. of the predetermined | prescribed aspect which a vehicle has in the said embodiment, the kind of instrument is not limited to the power meter 41. FIG. For example, the speed meter may be used to inform the battery 12 of the charge level and the like. Or it is also possible to notify the mode of a vehicle using the indicator lamp provided in the position which a driver | operator can visually recognize.

Further, the vehicle is not limited to the electric vehicle 1 shown in FIG. For example, the present invention can be similarly applied to a hybrid vehicle that uses a motor that operates by supplying power from the battery 12 and an engine that operates using fuel energy of fuel as a power source.
Hereinafter, the invention described in the scope of claims of the present application will be appended.
(1) A display device for a vehicle that uses a motor operated by power supply from a battery as a power source, the storage means storing a display pattern of the display device set for each mode of the vehicle, and activation of the vehicle And control means for recognizing the aspect of the vehicle according to the vehicle, determining the display pattern based on the recognized aspect, and displaying the determined display pattern on the display device. A vehicle display device characterized by the above.
(2) The vehicle display device according to (1), wherein an aspect of the vehicle is a charge level of the battery.
(3) The vehicle display device according to (1), wherein the mode of the vehicle is a type of program that defines an operation of a computer mounted on the vehicle.
(4) One of the above (1) to (3), characterized in that it comprises a meter that indicates the situation during travel of the vehicle by movement of a pointer, and the display pattern is displayed by operating the pointer of the meter. The vehicle display device according to 1.
(5) The vehicle display device according to (4), wherein the meter is a power meter that indicates a discharge amount when the battery is discharged and a charge amount when the battery is charged by movement of a pointer.

  DESCRIPTION OF SYMBOLS 1 ... Electric vehicle, 11 ... Motor, 12 ... Battery, 15 ... Control box, 24 ... Start switch, 27 ... Instrument panel, 31 ... EV-ECU, 41 ... Power meter, 53, 61 ... Initial display pattern table, 54, 62 ... Status table.

Claims (4)

A display device for a vehicle using a motor that operates by power supply from a battery as a power source,
Storage means for storing a display pattern of the display device set for each aspect of the vehicle;
Control means for recognizing the aspect of the vehicle in response to activation of the vehicle, determining the display pattern based on the recognized aspect, and causing the display device to display the determined display pattern;
An instrument that indicates the mode of the vehicle by movement of a pointer,
A display device for a vehicle , wherein the indicator of the instrument at the time of activation is displayed so as to return to the reference position after being moved from the reference position to the display pattern .   The vehicle display device according to claim 1, wherein an aspect of the vehicle is a charge level of the battery.   The vehicle display device according to claim 1, wherein the vehicle mode is a type of a program that defines an operation of a computer mounted on the vehicle. The instrument, the amount of discharge during the discharge of the battery, a display device for a vehicle according to claim 1, characterized in that during charging a power meter showing the motion of the pointer charge amount.

Images