JP2010175524A - Display apparatus for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display apparatus for a vehicle facilitating the recognition of the vehicle state. <P>SOLUTION: The display apparatus for the vehicle to be mounted in the vehicle includes a display section for displaying visually identifiable first display image and second display image at relatively variable display positions; a display image position calculating section for calculating the display positions of the first display image and the second display image; and a display image creating section for creating display image data to be displayed on the display section, based on the calculated display positions of the first display image and the second display image. The display image position calculating section compares the actually measured value obtained by detecting the vehicle state with the comparison value compared with the actually measured value, and determines relative displacing direction and relative displacing amount to the first display image and the second display image, based on the deviation of the actually measured value from the comparison value. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle display device mounted on a vehicle.

  Patent Document 1 discloses a conventional vehicle display device. This vehicle display device is provided with a pointer-type fuel consumption meter that displays a deviation of instantaneous fuel consumption with respect to average fuel consumption with a downward pointing pointer. The fuel consumption meter is disposed below the pointer-type speedometer. The fuel consumption meter pointer swings in the left-right direction with the support shaft as a fulcrum, with the neutral position of the scale set at the lowest point as a reference. The neutral position represents the trip average fuel consumption.When the instantaneous fuel consumption is higher than the trip average fuel consumption, the pointer swings to the right according to the deviation, and when the instantaneous fuel consumption is lower than the trip average fuel consumption, according to the deviation. The pointer swings to the left.

Japanese Patent No. 3990716

  The vehicle display device has a configuration in which a pointer type fuel consumption meter is further added to a normal vehicle display device including a plurality of pointer type meters. For this reason, in said vehicle display device, since a pointer and a scale increase, it will become complicated visually and the problem that a driver | operator will become difficult to recognize a vehicle state arises.

  An object of the present invention is to provide a display device for a vehicle in which the vehicle state can be easily recognized.

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

  The invention according to claim 1 is a display device for a vehicle mounted on a vehicle, and displays a first display image and a second display image that can be visually distinguished from each other at a relatively variable display position. A display image position calculation unit for calculating the display positions of the first display image and the second display image, and a display image to be displayed on the display unit based on the calculated display positions of the first display image and the second display image. A display image generation unit that generates data, and the display image position calculation unit compares an actual value obtained by detecting the vehicle state with a comparison value compared with the actual measurement value, and based on a deviation of the actual measurement value from the comparison value. Thus, the vehicle display device is characterized in that a relative shift direction and shift amount of the first display image with respect to the second display image are determined.

  Thereby, the deviation with respect to the comparison value of the measured value of the vehicle state can be expressed by the relative displacement direction and displacement amount of the first display image with respect to the second display image. That is, the display unit can visually display how the actually measured value of the vehicle state is deviated from the comparison value. Therefore, the vehicle state can be easily and intuitively recognized by the user.

  The invention described in claim 2 is characterized in that the first display image and the second display image have the same display shape and display size.

  Thereby, it is possible to make the user more easily recognize the relative shift direction and shift amount of the first display image with respect to the second display image.

  The invention according to claim 3 is characterized in that the shift direction is the vertical direction on the display screen of the display unit.

  As a result, the shift direction of the first display image with respect to the second display image is the vertical direction on the display screen, so that the user can intuitively recognize the magnitude relationship between the actual measurement value and the comparison value.

  The invention described in claim 4 is characterized in that the first display image and the second display image are vehicle-shaped images displayed so that the upper direction on the display screen of the display unit is forward.

  As a result, the displacement direction of the first display image with respect to the second display image and the direction in the actual vehicle are easily connected to the user's senses, so that the relationship between the measured value of the vehicle state and the comparison value is shown to the user. It can be expressed more intuitively.

  The invention according to claim 5 is characterized in that the second display image is an image obtained by translucent the first display image.

  Thereby, a difference can be made in the visibility between the first display image and the second display image, and the visibility of the first display image can be made higher than the visibility of the second display image. Therefore, the user can intuitively recognize that the first display image represents the actual measurement value of the vehicle state and the second display image represents the comparison value.

  The invention described in claim 6 is characterized in that the second display image is an image constituted by the contour line of the first display image.

  Thereby, a difference can be made in the visibility between the first display image and the second display image, and the visibility of the first display image can be made higher than the visibility of the second display image. Therefore, the user can intuitively recognize that the first display image represents the actual measurement value of the vehicle state and the second display image represents the comparison value.

  The invention described in claim 7 is characterized in that the display position of the first display image is fixed.

  Thereby, since the shift direction and the shift amount between the first display image and the second display image are specified by the display position of the second display image, the relationship between the actual measurement value and the comparison value is intuitive to the user. Can be recognized.

  The invention according to claim 8 is characterized in that the vehicle state is fuel consumption and the actually measured value is instantaneous fuel consumption of the vehicle.

  Thereby, the relative instantaneous fuel consumption with respect to a comparison value can be made to recognize intuitively with respect to a user.

  The invention according to claim 9 is characterized in that the comparison value is an average fuel consumption of the vehicle.

  Thereby, a user can be made to recognize intuitively the relationship between the average fuel consumption of a vehicle, and an instantaneous fuel consumption.

  The invention according to claim 10 is characterized in that the vehicle state is a traveling speed and the actually measured value is an actual traveling speed of the vehicle.

  As a result, the user can intuitively recognize the actual traveling speed relative to the comparison value.

  The invention according to claim 11 is characterized in that the comparison value is a speed limit of a road on which the vehicle is traveling.

  As a result, the user can intuitively recognize the relationship between the speed limit and the actual travel speed.

  The invention according to claim 12 is characterized in that the vehicle state is acceleration, the actual measurement value is the actual acceleration of the vehicle, and the comparison value is zero acceleration.

  Thereby, the actual acceleration of the vehicle can be intuitively recognized by the user.

  In the invention according to claim 13, the vehicle state is a travel distance at a predetermined elapsed time, the actually measured value is a travel distance of the vehicle at the elapsed time, and the comparison value is a travel distance to be compared at the elapsed time. It is characterized by that.

  Thereby, in a racing vehicle or the like, the user can intuitively recognize whether the own vehicle is faster or slower than the comparison target.

  The invention according to claim 14 is a vehicular display device used in an in-vehicle navigation device that searches for a recommended route to a set destination and provides guidance, and is a first display image that can be visually distinguished from each other. And a display unit that displays the second display image at a relatively variable display position, and a control unit that controls display of the display unit, and the control unit determines a recommended route at the intersection based on information on the recommended route. When displaying on a display part, the 1st display image and the 2nd display image which moves relatively in the direction showing a recommended course with respect to the 1st display image are displayed. is there.

  Thereby, the relationship between the current vehicle traveling direction and the recommended course can be visually shown by the movement of the second display image relative to the first display image. Therefore, the user can easily and intuitively recognize the relationship between the current vehicle state and the recommended course to be followed.

It is a front view which shows typically the structure of the combination meter in 1st Embodiment. It is a functional block diagram which shows the structure of the display apparatus for vehicles in 1st Embodiment. It is a figure which shows the example of the display image displayed on a display screen. It is a figure which shows the example of the display image displayed on a display screen. It is a block diagram which shows the structure of the vehicle-mounted navigation apparatus in 2nd Embodiment. It is a figure which shows the example of the display image displayed on a display part. It is a figure which shows the example of the display image displayed on a display part. It is a figure which shows the example of the display image displayed on a display part. It is a figure which shows the example of the display image displayed on a display part.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. The vehicle display device of the present embodiment is mounted on a vehicle and constitutes a combination meter that is arranged in an instrument panel in front of the driver's seat. FIG. 1 is a front view schematically showing the configuration of the combination meter 10. As shown in FIG. 1, the combination meter 10 includes a speedometer 11 that displays the traveling speed of the vehicle and a tachometer 12 that displays the engine speed. The speedometer 11 and the tachometer 12 are pointer instruments each having a pointer that rotates on a dial plate on which a scale is arranged and a pulse motor that rotates the pointer. Between the speedometer 11 and the tachometer 12, a display screen 21 of the display unit 20 to be described later is disposed. The display screen 21 has a rectangular screen shape that is long in the vertical direction.

  FIG. 2 is a functional block diagram showing the configuration of the vehicle display device 1 of the present embodiment. As shown in FIG. 1, the vehicle display device 1 includes a display unit 20 that includes a display screen 21 and a control device 30 that controls display on the display unit 20.

  The display unit 20 includes, for example, a plurality of pixels arranged in a matrix and includes a transmissive liquid crystal display panel that forms the display screen 21 and a backlight device that illuminates the liquid crystal display panel from behind. . The display unit 20 drives the liquid crystal display panel based on the image signal from the control device 30 and controls the transmittance of the illumination light from the backlight device for each pixel, whereby a desired display image is displayed on the display screen 21. Is displayed.

  The control device 30 includes a microcomputer 31 having a CPU, a ROM, a RAM, an I / O port, and the like, and a nonvolatile memory 32 such as an EEPROM that stores predetermined data in a rewritable manner. The control device 30 also includes a display image position calculation unit 33 and a display image generation unit 34 as functional blocks realized by the CPU executing a control program written in the ROM of the microcomputer 31. The control device 30 includes actual state value data (for example, instantaneous fuel consumption) of the vehicle state that is input as needed from sensors and other control devices for detecting the vehicle state, and the vehicle state stored in the nonvolatile memory 32. Comparison value data (for example, average fuel efficiency) is compared, and display image data to be displayed on the display screen 21 is generated.

  3 and 4 show examples of display images displayed on the display screen 21. FIG. On the display screen 21 shown in FIG. 3, a first display image 41 is displayed near the center in the height direction of the vertically long display screen 21. The first display image 41 has a virtual vehicle shape that schematically shows the upper surface shape of the vehicle. The first display image 41 can easily specify the front-rear direction of the vehicle by deformation representation such as a headlight. The first display image 41 is displayed such that the upper direction on the display screen 21 is the front. Although only the first display image 41 is apparently displayed on the display screen 21 shown in FIG. 3, the display screen 21 displays the display position of the first display image 41 and the display position of the second display image 42 described later. And are the same.

  On the display screen 21 shown in FIG. 4, a first display image 41 is displayed at the same position as the display position on the display screen 21 of FIG. The display screen 21 displays a second display image 42 that can be visually distinguished from the first display image 41. The second display image 42 has the same display shape and display size as the first display image 41, and is displayed, for example, semi-transparently (in FIG. 4, the fact that it is semi-transparent is indicated by a broken line). On the display screen 21, the visibility of the first display image 41 is higher than the visibility of the second display image 42. The second display image 42 is displayed shifted from the first display image 41 in the downward direction of the screen (rearward direction of the virtual vehicle) by a predetermined shift amount. In other words, the first display image 41 is displayed shifted from the second display image 42 in the upward direction on the screen (forward direction of the virtual vehicle) by a predetermined shift amount.

  The driver (user) who has seen the display screen 21 shown in FIG. 4 has a non-transparent virtual vehicle (first display image 41) with high visibility and a semi-transparent virtual vehicle (second display image) with low visibility. 42), it can be recognized that it is shifted forward.

  In this embodiment, the relative deviation direction and deviation amount of the first display image 41 with respect to the second display image 42 represent the deviation of the measured value of the vehicle state from the comparison value. That is, on the display screen 21, how the actually measured value of the vehicle state deviates from the comparison value is visually displayed by the first display image 41 and the second display image.

  Hereinafter, the operation of the vehicle display device 1 of the present embodiment will be described by taking the fuel consumption of the vehicle as an example of the vehicle state. In this example, the vehicle display device 1 functions as an ecometer, the actually measured value of the vehicle state is the instantaneous fuel consumption of the vehicle, and the comparison value is, for example, the average fuel consumption of the vehicle over a predetermined period. The instantaneous fuel consumption data of the vehicle is input to the control device 30 at a predetermined time interval from another control device or the like. The average fuel consumption data is input from another control device together with the instantaneous fuel consumption data, or is calculated by the control device 30 using the instantaneous fuel consumption data and is written in the nonvolatile memory 32.

  The display image position calculation unit 33 compares the instantaneous fuel consumption data input from another control device with the average fuel consumption data read from the nonvolatile memory 32. The display image position calculation unit 33 calculates the deviation of the instantaneous fuel consumption from the average fuel consumption, and based on the calculated deviation, calculates the relative positional relationship (shift direction and shift amount) between the first display image 41 and the second display image 42. calculate. For example, when the instantaneous fuel consumption is worse than the average fuel consumption, the relative shift direction of the first display image 41 with respect to the second display image 42 is the screen upward direction, and the larger the deviation of the instantaneous fuel consumption from the average fuel consumption, the larger the relative shift amount. Is greatly calculated. Further, when the instantaneous fuel consumption is better than the average fuel consumption, the relative shift direction of the first display image 41 with respect to the second display image 42 is the lower direction of the screen. Is greatly calculated. When the instantaneous fuel efficiency is equal to the average fuel efficiency, the display position of the first display image 41 and the display position of the second display image 42 are the same.

  The display image position calculation unit 33 displays the display screen 21 of the first display image 41 and the second display image 42 based on the relative positional relationship between the first display image 41 and the second display image 42 calculated as described above. The absolute display position above is calculated respectively. For example, in this example, the display position of the first display image 41 is fixed, and only the display position of the second display image 42 is changed.

  The display image generation unit 34 generates display image data to be displayed on the display screen 21 based on the absolute position data of the first display image 41 and the second display image 42 calculated by the display image position calculation unit 33. The generated display image data is output from the control device 30 to the display unit 20.

  The display unit 20 drives the liquid crystal display panel based on the display image data input from the control device 30 to display a predetermined display image on the display screen 21. Thereby, the relative instantaneous fuel consumption relative to the average fuel consumption can be intuitively recognized by the driver based on the deviation direction and deviation amount between the first display image 41 and the second display image 42 on the display screen 21. For example, when the instantaneous fuel consumption is equal to the average fuel consumption, a display image as shown in FIG. 3 is displayed on the display screen 21. Further, when the instantaneous fuel efficiency is worse than the average fuel efficiency, a display image as shown in FIG. 4 is displayed on the display screen 21.

  When the display image shown in FIG. 3 is displayed on the display screen 21, the driver can recognize that the display position of the first display image 41 and the display position of the second display image 42 are the same. Thereby, the driver can easily and intuitively understand that the instantaneous fuel consumption is equal to the average fuel consumption.

  On the other hand, when the display image shown in FIG. 4 is displayed on the display screen 21, the driver moves the non-transparent first display image 41 forward (upward on the screen) with respect to the semi-transparent second display image 42. You can recognize that it is shifted. Thus, the driver can easily and intuitively understand that the instantaneous fuel consumption is worse than the average fuel consumption. When the driver who recognizes that the instantaneous fuel consumption is poor relaxes the accelerator, the instantaneous fuel consumption improves and approaches the average fuel consumption. Thereby, on the display screen 21, the deviation | shift amount with respect to the 2nd display image 42 of the 1st display image 41 reduces. When the driver performs an accelerator operation so that the shift amount of the first display image 41 with respect to the second display image 42 is small, the instantaneous fuel consumption can be made close to the ideal fuel consumption (average fuel consumption).

  In the above example, the average fuel consumption of the vehicle is used as the comparison value. However, the 10/15 mode fuel consumption, the ideal fuel consumption by scene set for each type of road (highway / general road), etc. are compared. It may be used as

  Further, as the vehicle state for comparing the actual measurement value and the comparison value, the accelerator opening degree, the depression amount of the accelerator pedal, or the like can be used instead of the fuel consumption as described above.

  Next, a first modification of the present embodiment will be described with reference to FIGS. In the present modification, the traveling speed is used as the vehicle state displayed on the display screen 21. The actually measured value of the vehicle state is the actual traveling speed of the vehicle, and the comparison value is, for example, the speed limit of the road on which the vehicle is traveling. The control device 30 is configured to acquire actual traveling speed data of the vehicle by calculation using a vehicle speed pulse signal input from a vehicle speed sensor or the like or by communication with another control device. Further, the speed limit data of the road on which the vehicle is traveling is input to the control device 30 from another control device or the like.

  The display image position calculation unit 33 calculates the relative positional relationship between the first display image 41 and the second display image 42 based on the actual travel speed data and the limit speed data. For example, when the actual traveling speed of the vehicle is higher than the speed limit on the road, the shift direction of the first display image 41 with respect to the second display image 42 is an upward direction on the screen. The amount of shift is calculated to be large.

  Thereafter, the absolute display positions of the first display image 41 and the second display image 42 are calculated by the display image position calculation unit 33, and a display image to be displayed on the display screen 21 is generated by the display image generation unit 34.

  In the present modification, when the display image shown in FIG. 3 is displayed on the display screen 21, the driver can easily and intuitively recognize that the actual traveling speed is equal to the speed limit. On the other hand, when the display image shown in FIG. 4 is displayed on the display screen 21, the driver can easily and intuitively recognize that the actual traveling speed is higher than the speed limit. When the driver performs an accelerator operation so that the amount of deviation of the first display image 41 from the second display image 42 is small, the actual traveling speed can be brought close to the speed limit.

  In this modified example, the speed limit of the road is used as the comparison value, but other speeds can be used as the comparison value.

  Next, a second modification of the present embodiment will be described. In this modification, acceleration is used as the vehicle state displayed on the display screen 21. The actually measured value of the vehicle state is the actual acceleration of the vehicle, and the comparison value is zero acceleration. The control device 30 acquires the actual acceleration data of the vehicle by calculation using a vehicle speed pulse signal or an acceleration signal input from sensors, or by communication with another control device.

  The display image position calculation unit 33 calculates the relative positional relationship between the first display unit 41 and the second display unit 42 based on the actual acceleration data. For example, when the actual acceleration of the vehicle is greater than 0 (when accelerating), the displacement direction of the first display image 41 with respect to the second display image 42 is the screen upward direction, and the relative displacement amount increases as the actual acceleration increases. Is greatly calculated. When the actual acceleration of the vehicle is smaller than 0 (when the vehicle is decelerating), the displacement direction of the first display image 41 with respect to the second display image 42 is the downward direction of the screen, and the relative displacement increases as the absolute value of the actual acceleration increases. A large amount is calculated.

  Thereafter, the absolute display positions of the first display image 41 and the second display image 42 are calculated by the display image position calculation unit 33, and a display image to be displayed on the display screen 21 is generated by the display image generation unit 34.

  In the present modification, when the display image shown in FIG. 3 is displayed on the display screen 21, the driver can easily and intuitively recognize that the actual acceleration is zero. On the other hand, when the display image shown in FIG. 4 is displayed on the display screen 21, the driver can easily and intuitively recognize that the actual acceleration is greater than zero.

  Next, a third modification of the present embodiment will be described. This modification is applied to a racing vehicle or the like traveling on a predetermined circuit course, and the travel distance in the elapsed time from the reference time is used as the vehicle state displayed on the display screen 21. The actually measured value of the vehicle state is the travel distance of the host vehicle in the elapsed time from the reference time, and the comparison value is the travel distance of the comparison target in the same elapsed time. The control device 30 acquires the travel distance of the vehicle at a predetermined time interval from the reference time based on a pulse signal from the vehicle speed sensor, travel distance information from another control device, and the like. The non-volatile memory 32 of the control device 30 stores data representing the relationship between the elapsed time from the reference time and the comparison target travel distance at the elapsed time (for example, data when the best lap in the same course is measured). ing.

  The display image position calculation unit 33 is based on the travel distance data of the host vehicle at the elapsed time from the reference time and the comparison travel distance data at the same elapsed time, and the first display unit 41 and the second display unit 42. The relative positional relationship of is calculated. For example, when the travel distance of the host vehicle is longer than the travel distance to be compared in the same elapsed time, the shift direction of the first display image 41 with respect to the second display image 42 is the screen upward direction, and the comparison of the travel distance of the host vehicle The larger the deviation from the object, the greater the deviation amount.

  Thereafter, the absolute display positions of the first display image 41 and the second display image 42 are calculated by the display image position calculation unit 33, and a display image to be displayed on the display screen 21 is generated by the display image generation unit 34.

  In the present modification, when the display image shown in FIG. 3 is displayed on the display screen 21, the driver can easily and intuitively recognize that the host vehicle is at the same speed as the comparison target. On the other hand, when the display image shown in FIG. 4 is displayed on the display screen 21, the driver can easily and intuitively recognize that the host vehicle is faster than the comparison target.

  Here, a changeover switch for switching the display on the display screen 21 may be provided so that the displayed vehicle state can be switched by the operation of the driver. In this case, it is desirable to display characters, symbols, and the like that indicate what the vehicle state is displayed on the display screen 21.

  As described above, according to the present embodiment, the comparison value (for example, the instantaneous fuel consumption) of the vehicle state is calculated based on the relative shift direction and shift amount of the first display image 41 with respect to the second display image 42. For example, the deviation with respect to the average fuel consumption can be expressed. That is, the display unit 20 functions as a meter that relatively displays the vehicle state, and can visually display how the measured value of the vehicle state is deviated from the comparison value. Therefore, the vehicle state can be easily and intuitively recognized by the driver.

  Moreover, in this embodiment, since the display screen 21 is provided independently of other pointer instruments, it can be prevented from being confused with other pointer instruments. Furthermore, since the display of the pointers and scales can be omitted, the complexity of appearance can be reduced.

  In the present embodiment, since the display shape and the display size of the first display image 41 and the second display image 42 are the same, it is easy to recognize both relatively small. Therefore, according to the present embodiment, the relative displacement direction and displacement amount of the first display image 41 with respect to the second display image 42 can be more easily recognized by the driver.

  Furthermore, in the present embodiment, the shift direction of the first display image 41 with respect to the second display image 42 is the vertical direction (vertical direction) on the display screen 21. By shifting the first display image 41 and the second display image 42 in the vertical direction, the magnitude relationship and the positive / negative relationship between the measured value of the vehicle state and the comparison value can be expressed more intuitively.

  In the present embodiment, the first display image 41 and the second display image 42 are vehicle-shaped images that can easily specify the front-rear direction, and are displayed so that the upper direction on the display screen 21 is the front. . For this reason, the displacement direction of the first display image 41 with respect to the second display image 42 and the actual vehicle front-rear direction (traveling direction and reversing direction) are easily connected to the driver's senses, and the measured value of the vehicle state The relationship with the comparison value can be expressed more intuitively.

  Further, in the present embodiment, the first display image 41 is a non-transparent image, and the second display image 42 is an image obtained by making the first display image 41 translucent. Thereby, the visibility of the first display image 41 can be made higher than the visibility of the second display image 42. Therefore, the driver can intuitively recognize that the first display image 41 represents the actual measurement value of the vehicle state and the second display image 42 represents the comparison value to be compared with the actual measurement value. .

  In the present embodiment, since the display position of the first display image 41 is fixed on the display screen 21, the shift direction and shift amount between the first display image 41 and the second display image are the second display image 42. It is specified only by the display position. Therefore, the driver can intuitively recognize the relationship between the actual measurement value and the comparison value.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. The vehicle display device according to the present embodiment is a display device used in an in-vehicle navigation device. FIG. 5 is a block diagram illustrating a configuration of the in-vehicle navigation device. As shown in FIG. 5, the in-vehicle navigation device 100 includes a position detector 101, a map data storage device 106, an operation switch group 107, a memory 109, a display unit 110, a DSRC communication device 111, a voice controller 112, a speaker 113, and voice recognition. A device 114, a microphone 115, a remote control sensor 116, a remote control terminal (hereinafter referred to as "remote control") 117, and a control device (control unit) 108 to which these devices are connected are provided.

  The control device 108 includes a CPU, a ROM, a RAM, an I / O port, and the like. In the ROM, a program to be executed by the control device 108 is written, and a CPU or the like executes predetermined arithmetic processing according to this program.

  The position detector 101 is based on a geomagnetic sensor 102 for detecting the absolute azimuth of the vehicle, a gyroscope 103 for detecting the relative azimuth of the vehicle, a distance sensor 104 for detecting the travel distance of the vehicle, and radio waves from the satellite. And a GPS receiver 105 for a global positioning system (GPS) for measuring the position of the vehicle. These sensors 102, 103, 104, and 105 are all well known. Since these sensors 102, 103, 104, and 105 have errors of different properties, the plurality of sensors 102, 103, 104, and 105 are configured to be used while complementing each other. Depending on the accuracy, the position detector 101 may be configured by a part of the above-described components, and a steering rotation sensor (not shown), a vehicle speed sensor for each rolling wheel, or the like may be used.

  The map data storage device 106 has a storage medium (not shown) such as a hard disk or a memory card. Digital map data is stored in the storage medium, and the map data storage device 106 outputs various data included in the digital map data stored in the storage medium to the control device 108.

  The operation switch group 107 includes a touch switch integrated with the display unit 110 or a mechanical switch provided around the display unit 110. The remote controller 117 is provided with a plurality of operation switches (not shown), and an input operation similar to that of the operation switch group 107 can be performed by operating the operation switches. A signal representing an input operation input to the remote control 117 is supplied to the control device 108 via the remote control sensor 116.

  The memory 109 is a non-volatile memory such as an EEPROM, and stores screen data, text data, audio data, location data set by a user, and the like in a rewritable manner.

  Various screens are displayed on the display unit 110 based on the user's operation and according to the vehicle running state. For example, during route guidance, a road map around the vehicle is displayed in a predetermined map display area. In the destination setting mode, a destination setting screen including an input field for inputting a destination is displayed.

  The communication device 111 is a device that performs wireless communication with a communication device outside the vehicle. For example, the communication device 111 communicates with an external communication device of a road traffic information communication system.

  The speaker 113 outputs various messages to the outside based on the audio output signal input from the audio controller 112. As messages output from the speaker 113, there are a message for route guidance, a message for explanation of screen operation, a message representing a voice recognition result, and the like.

  The microphone 115 inputs the voice generated by the user to the voice recognition device 114 as an electrical signal. The voice recognition device 114 collates a user's input voice inputted from the microphone 115 with vocabulary data in a recognition dictionary (not shown) stored therein, and uses the voice controller having the highest matching degree as a recognition result. 112.

  The voice controller 112 controls the voice recognition device 114 and performs talkback output control through the speaker 113 for the user who has input voice. Moreover, the process which inputs the recognition result of the speech recognition apparatus 114 to the control apparatus 108 is also performed.

  The control device 108 executes various processes based on the input signal. As a process executed by the control device 108, for example, there is a position determination process that sequentially determines the current position of the vehicle based on a signal from the position detector 101. The signal input to the control device 108 includes a signal based on the user's input operation. Examples of processing executed by the control device 108 based on the user's input operation include menu display processing and map scale. There are change processing, destination setting processing, route search processing, route guidance processing, current position correction processing, and the like. In addition, the control device 108 executes a screen display process for displaying various screens on the display unit 110 in accordance with the various processes. As the screen display processing, for example, intersection guidance that provides route guidance at intersections that should be changed (right turn, left turn, etc.) based on the recommended route information obtained by the route search processing and the current position information of the host vehicle. There is display processing. Further, a vehicle speed pulse signal is sequentially supplied to the control device 108, and based on the vehicle speed pulse signal, stop of the vehicle and start of traveling are detected.

  6 to 9 show examples of intersection guidance displayed on the display unit 110 when a right turn at an intersection is recommended. When the host vehicle approaches the intersection to be turned right, the control device 108 performs display control of the display unit 110, and displays a display image 130 as shown in FIG. 6 along with distance information (not shown) to the intersection on the display screen. Let The display image 130 includes a first display image 121 having a virtual vehicle shape facing upward on the screen. On the left side of the front (upper screen) of the first display image 121, a straight arrow 123 that extends toward the front and points directly to the front is arranged. Further, on the right side of the front of the first display image 121, a right-turn arrow 124 that extends toward the front and bends to the right in the middle and points to the right is arranged. The straight arrow 123 and the right turn arrow 124 are different in color and brightness, and the right turn arrow 124 is highlighted so that the visibility is higher than that of the straight arrow 123. The display image 130 suggests that a right turn at an intersection is recommended and that a straight turn and a right turn are possible at the intersection.

  After the display image 130 of FIG. 6 is displayed for a predetermined time, a display image 131 as shown in FIG. 7 is displayed on the display unit 110 based on the control of the control device 108. The display image 131 includes a first display image 121 and, for example, a second display image 122 obtained by making the first display image 121 translucent. The display position of the first display image 121 is the same as the display position of the first display image 121 of the display image 130. The second display image 122 is displaced on the right front of the first display image 121 and is disposed on the right turn arrow 124. The direction of the second display image 122 is the same as the direction of the first display image 121.

  After the display image 131 of FIG. 7 is displayed for a predetermined time, a display image 132 as shown in FIG. 8 is displayed on the display unit 110 based on the control of the control device 108. Similar to the display image 131, the display image 132 includes a first display image 121 and a second display image 122. The display position of the first display image 121 is the same as the display position of the first display image 121 of the display images 130 and 131. The display position of the second display image 122 is slightly ahead of the display position of the second display image 122 of the display image 131 and overlaps the right turn arrow 124. The distance between the first display image 121 and the second display image 122 is longer than the distance between the first display image 121 and the second display image 122 in the display image 131. The direction of the second display image 122 is right front. That is, the second display image 122 of the display image 132 represents a state where the second display image 122 of the display image 131 is turning right.

  After the display image 132 of FIG. 8 is displayed for a predetermined time, a display image 133 as shown in FIG. 9 is displayed on the display unit 110 based on the control of the control device 108. The display image 133 includes a first display image 121 and a second display image 122 as with the display images 131 and 132. The display position of the first display image 121 is the same as the display position of the first display image 121 of the display images 130, 131, and 132. The display position of the second display image 122 is more to the front right than the display position of the second display image 122 of the display image 132, and overlaps the vicinity of the tip of the right turn arrow 124 bent to the right. The distance between the first display image 121 and the second display image 122 is longer than the distance between the first display image 121 and the second display image 122 in the display image 131. The direction of the second display image 122 is substantially rightward. That is, the second display image 122 of the display image 133 represents a state immediately before the second display image 122 of the display image 132 has finished turning right.

  Thereafter, display images 131, 132, and 133 shown in FIGS. 7 to 9 are repeatedly displayed in this order on the display unit 110 based on the control of the control device 108. This repeated display ends after the host vehicle turns to the right according to the recommended route and passes the intersection.

  In the present embodiment, on the display screen of the display unit 110, the non-transparent first display image 121 is displayed at a fixed position, and the semi-transparent second display image 122 is moved and displayed. The first display image 121 suggests the current vehicle traveling direction. The second display image 122 is moved relative to the first display image 121 in the direction representing the recommended course at the intersection starting from the first display image 121. Thereby, not only an arrow indicating the recommended course is displayed on the display screen, but also the relationship between the current vehicle traveling direction and the recommended course direction is visually determined by the movement of the second display image 122 with respect to the first display image 121. Indicated. The driver who has seen the movement of the second display image 122 relative to the first display image 121 can easily and intuitively understand the recommended course at the intersection. As described above, according to this embodiment, the driver can easily and intuitively recognize the relationship between the current vehicle state and the recommended course to be followed.

(Other embodiments)
In the above embodiment, an example in which the second display image is a semi-transparent image of the first display image has been described. However, the second display image is another image such as an image formed by the outline of the first display image. It may be an image.

  Moreover, in the said embodiment, although the display part provided with the liquid crystal display panel was mentioned as an example, the display part may be provided with other display apparatuses, such as an organic electroluminescence display panel.

  Furthermore, in the above-described embodiment, an example has been given in which the display position of the first display image is fixed and the display position of the second display image is variable. However, the display position of the second display image is fixed and the display position of the first display image is fixed. The display position may be variable, or the center position of the display position of the first display image and the display position of the second display image may be fixed.

DESCRIPTION OF SYMBOLS 1 Display apparatus 10 for vehicles Combination meter 20,110 Display part 21 Display screen 30,108 Control apparatus 33 Display image position calculation part 34 Display image generation part 41,121 1st display image 42,122 2nd display image 100 Car-mounted navigation apparatus 130, 131, 132, 133 Display image

Claims (14)

A vehicle display device mounted on a vehicle,
A display unit that displays a first display image and a second display image that are visually distinguishable from each other at a relatively variable display position;
A display image position calculation unit for calculating display positions of the first display image and the second display image;
A display image generation unit that generates display image data to be displayed on the display unit based on the calculated display positions of the first display image and the second display image;
The display image position calculation unit compares an actual measurement value for detecting a vehicle state with a comparison value compared to the actual measurement value, and based on a deviation of the actual measurement value from the comparison value, the first display image A vehicle display device that determines a relative shift direction and shift amount with respect to a second display image.   The vehicle display device according to claim 1, wherein the first display image and the second display image have the same display shape and display size.   The vehicle display device according to claim 1, wherein the shift direction is a vertical direction on a display screen of the display unit.   The said 1st display image and the said 2nd display image are vehicle-shaped images displayed so that the upper direction in the display screen of the said display part may become the front, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The vehicle display device according to item 1.   5. The vehicular display device according to claim 1, wherein the second display image is an image obtained by making the first display image translucent.   5. The vehicular display device according to claim 1, wherein the second display image is an image configured by an outline of the first display image. 6.   The vehicle display device according to any one of claims 1 to 6, wherein a display position of the first display image is fixed. The vehicle state is fuel consumption,
The vehicle display device according to claim 1, wherein the actual measurement value is an instantaneous fuel consumption of the vehicle.   The vehicle display device according to claim 8, wherein the comparison value is an average fuel consumption of the vehicle. The vehicle state is a running speed,
The vehicle display device according to claim 1, wherein the actual measurement value is an actual traveling speed of the vehicle.   The vehicle display device according to claim 10, wherein the comparison value is a speed limit of a road on which the vehicle is traveling. The vehicle state is acceleration,
The measured value is the actual acceleration of the vehicle,
The vehicle display device according to any one of claims 1 to 7, wherein the comparison value is an acceleration of zero. The vehicle state is a mileage at a predetermined elapsed time,
The actual measurement value is a travel distance of the vehicle at the elapsed time,
The vehicle display device according to claim 1, wherein the comparison value is a travel distance to be compared in the elapsed time. A vehicle display device used in an in-vehicle navigation device that searches and provides guidance for a recommended route to a set destination,
A display unit that displays a first display image and a second display image that are visually distinguishable from each other at a relatively variable display position;
A control unit for controlling the display of the display unit,
When the controller displays the recommended route at the intersection on the display unit based on the recommended route information, the control unit is relative to the first display image and a direction representing the recommended route with respect to the first display image. A vehicle display device that displays the second display image that moves in a moving manner.

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