JP5316037B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device that inputs a state signal from a measurement target, obtains measurement data corresponding to each vehicle information, and drives display means based on each measurement data.

  2. Description of the Related Art Conventionally, a display device for a vehicle includes an analog meter, a liquid crystal display panel, an organic EL panel, or the like that includes a dial having an index portion and a pointer that indicates the index portion according to the vehicle state. A digital meter that displays information is known (for example, see Patent Document 1). Such a vehicle display device can provide a vehicle with a variety of vehicle information including a running speed (vehicle speed), an engine speed, a coolant temperature, a fuel capacity, and the like, and can provide vehicle information in various display forms. Is desired.

  In recent years, with the growing awareness of environmental protection and energy saving, methods for supporting eco-driving with good fuel efficiency considering the environment have been studied. As a specific method, for example, Patent Document 2 discloses a method of displaying an idling stop time of an engine on a display device for a vehicle, and a method of displaying idling information such as an idling accumulated time and fuel consumption during idling. .

JP-A-11-078611 JP 2008-174096 G

  However, simply displaying the idling accumulated time only displays the result of continuing the idling state, so it is difficult for the user to feel that fuel is consumed in real time due to the idling state. It was not enough to raise awareness and there was room for further improvement as a function for displaying information to support eco-driving.

  The present invention has been made paying attention to the above-mentioned problems, and has an object to provide a vehicle display device that enhances the user's awareness of energy saving and enables support for eco-friendly eco-driving. To do.

In order to solve the above-described problem, the present invention determines whether the vehicle information is in an idling state, display means capable of displaying vehicle information including at least the idling accumulated time, and the idling accumulated time based on the determination result. Control means for measuring and displaying on the display means , wherein the display means has a remaining fuel amount display unit for displaying the remaining fuel amount as the vehicle information, The control means changes a display form of the remaining fuel amount display section as an idling notification display for notifying the display means of an idling state while it is determined that the vehicle is in an idling state .

In order to solve the above-described problem, the present invention determines whether the vehicle information is in an idling state, display means capable of displaying vehicle information including at least the idling accumulated time, and the idling accumulated time based on the determination result. Control means for measuring and displaying on the display means , wherein the display means has a vehicle speed display section for displaying a vehicle speed as the vehicle information, and the control means While the vehicle is determined to be in an idling state, the display form of the vehicle speed display unit is changed as an idling notification display for notifying the display means of the idling state .

  The display means can switch and display a plurality of the vehicle information, and the control means automatically displays the accumulated idling time on the display means when it is determined that the vehicle is in an idling state. It is characterized by being displayed.

  The present invention relates to a display device for a vehicle, and enhances the user's awareness of energy saving and enables support for eco-driving considering the environment.

The figure which shows the electrical constitution of the display apparatus for vehicles of embodiment of this invention. The figure which shows the example of a display of a display means same as the above. The figure which shows the processing method of a control means same as the above. The figure which shows the example of a display of the idling notification display in a display means same as the above. The figure which shows the example of a display of the idling alerting | reporting display in a display means same as the above. The figure which shows the example of a display of the idling alerting | reporting display in a display means same as the above. The figure which shows the example of a display of the idling alerting | reporting display in a display means same as the above.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Embodiments in which the invention is applied to a vehicle display device that displays vehicle speed, engine speed, and the like will be described below with reference to the accompanying drawings.

  FIG. 1 shows a vehicular display device, which mainly includes a control means 1, a display means 2, and a storage medium 3.

  The control means 1 is composed of a microcomputer, a ROM for storing a program for obtaining a vehicle speed, a CPU for executing the program, a RAM for temporarily storing calculation results and data (pulse period), and running of the vehicle It has an interface circuit for inputting a state signal proportional to speed (vehicle speed), engine speed, or remaining fuel.

  The control means 1 inputs an SP pulse signal (vehicle speed pulse signal) as a status signal from a vehicle speed sensor (not shown) mounted on the vehicle, shapes the SP pulse signal, and generates the waveform-shaped pulse signal. A cycle or frequency is obtained, a vehicle speed as vehicle information is obtained according to the cycle or frequency, and this speed is output to the display means 2 as a control signal. Further, the control means 1 inputs a TA pulse signal (engine speed pulse signal) as a status signal from an engine rotation sensor (not shown) mounted on the vehicle, shapes the TA pulse signal, and forms the waveform. The period or frequency of the pulse signal thus obtained is obtained, the engine speed, which is vehicle information, is obtained according to the period or frequency, and this engine speed is output to the display means 2 as a control signal. Further, the control means 1 receives an output voltage for outputting the remaining fuel as a change in resistance value as a state signal from a fuel sensor (not shown) disposed in the fuel tank of the vehicle, and the fuel detection circuit according to the vehicle type The amount of remaining fuel as vehicle information is obtained by adjusting the magnitude of the output voltage, and this remaining amount of fuel is output to the display means 2 as a control signal. Note that the control means 1 may input a vehicle speed information signal and an engine speed information signal from a separate control unit such as an ECU as a state signal indicating the vehicle speed and the engine speed. Further, the control means 1 determines whether or not the vehicle is in an idling state based on a state signal indicating the vehicle speed and the engine speed, and measures and calculates an idling integrated time that is vehicle information based on the determination result. The accumulated idling time is output to the display means 2 as a control signal.

  The display means 2 consists of flat displays, such as a liquid crystal display device arrange | positioned, for example on the dashboard of a vehicle, and an organic electroluminescent display. The display unit 2 includes a drive circuit (not shown), and displays various vehicle information based on a control signal from the control unit 1. FIG. 2 shows a display example of the display means 2. 21 is a vehicle speed display part which shows a vehicle speed numerically. Reference numeral 22 denotes an engine speed display unit indicated by a bar including an instruction unit that displays the engine speed in a plurality of rows. Reference numeral 23 denotes a remaining fuel amount display unit indicated by a bar including an instruction unit that displays the remaining fuel amount in a plurality of rows. Reference numeral 24 denotes an idling integrated time display unit that numerically represents the idling integrated time.

  The storage medium 3 is formed of a memory card having a flash memory capable of writing and reading data, for example, in the case body, and is detachably disposed on the vehicle display device and is electrically connected to the control means 1.

  The vehicle display device is constituted by the above means.

  Next, a control method for measuring and displaying the idling integration time will be described with reference to FIG.

  When the power is turned on, the control means 1 resets the idling integration time (step S1).

  The control means 1 starts the engine depending on whether the engine speed is equal to or higher than a predetermined value (for example, 500 rpm) among the vehicle speed and the engine speed calculated based on the input SP pulse signal and TA pulse signal. (Step S2), and when it is determined that the engine has started, the process proceeds to step S3.

  The control means 1 determines in step S3 whether or not the vehicle is in an idling state based on whether or not an SP pulse signal is input. If it is determined that the vehicle is in an idling state, the control unit 1 proceeds to step S4.

  In step S4, the control unit 1 causes the display unit 2 to perform an idling notification display, which will be described later, for notifying that the vehicle is idling.

  Further, the control means 1 starts measuring the idling integrated time in step S5.

  The control means 1 outputs a control signal to the display means 2 based on the idling accumulated time obtained in step S5, and updates the display of the idling accumulated time on the display means 2 (step S6).

  The control means 1 determines whether or not the power is turned off in step S7. If it is determined that the power is not turned off, the control means 1 proceeds to step S3 and continues to determine whether or not the vehicle is idling. If it is determined that the power has been turned off, the process proceeds to step S8.

  The control means 1 stores the idling integration time measured in step S8 as history data in the storage medium 3, and ends the control process.

  Further, when it is determined in step S3 that the vehicle is not in the idling state, the control means 1 stops the measurement in step S9 and proceeds to step S7 if the accumulated idling time has been measured so far.

  Next, the idling notification display in step S4 will be described. This idling notification display may be provided with a dedicated display section, but if the display form of the display section that displays information related to the idling state of the vehicle is changed to a display form different from the normal state, fuel is consumed depending on the idling state. Therefore, it is possible to call attention strongly, which is preferable. 4 to 7 show display examples of the idling notification display. FIG. 4 shows the idling notification display by blinking the entire remaining fuel amount display section 23. FIG. 5 shows the idling notification display by sequentially blinking a part of the bar (the indicating unit) of the remaining fuel amount display unit 23 from the maximum value (F) to the minimum value (E). is there. Since the remaining fuel amount display unit 23 is a display unit that indicates the remaining fuel amount consumed by the idling state, the user instantly idles by changing the display form of the remaining fuel amount display unit 23 as the idling notification display. Attention can be paid to unnecessary fuel consumption depending on the situation, and awareness of energy saving can be raised. FIG. 6 shows the idling notification display by blinking the numerical value of the vehicle speed display unit 21. The vehicle speed display unit 21 displays “0” in the idling state, but by changing the display form of the vehicle speed display unit 21 as the idling notification display, even if the user instantaneously displays “0”, the engine It is possible to pay attention to the fact that the vehicle is driven and that fuel is consumed unnecessarily, and can raise awareness of energy conservation. FIG. 7 shows the idling notification display by blinking the numerical value of the idling integrated time display unit 24. The idling integrated time display unit 24 increases the value in the idling state, and further, by changing the display form, the user instantaneously continues the idling state, and unnecessary fuel consumption is performed. Can focus attention on energy savings and raise energy conservation awareness. Note that the display form of each of the display units 21, 23, and 24 may be changed from the normal display such as switching from lighting to blinking or changing the display color.

  By executing the processing from step S1 to step S9 described above, the control means 1 can cause the display means 2 to display the idling accumulated time and the idling notification display.

  Such a vehicle display device can increase the user's awareness of energy saving by performing the idling notification display together with the measurement of the idling integrated time while it is determined that the vehicle is idling. It is possible to enhance support for eco-driving.

  In the present invention, the vehicular display device may be one that displays the accumulated idling time in addition to other vehicle information. In such a vehicle display device, when it is determined that the vehicle is in the idling state, the display is automatically switched to the display of the accumulated idling time, so that malfunction can be prevented and user convenience can be improved.

  Further, in the present invention, the determination of whether or not the vehicle is in an idling state is not limited to the method shown in the present embodiment. For example, it depends on whether or not the engine speed is a predetermined value (for example, 1000 rpm) or less. The determination may be based on determination, determination based on vehicle position information by GPS, or other vehicle information such as accelerator opening, hydraulic pressure, intake pressure, and the like.

  The present invention is suitable for a vehicle display device that displays vehicle information.

DESCRIPTION OF SYMBOLS 1 Control means 2 Display means 3 Storage medium 21 Vehicle speed display part 22 Engine speed display part 23 Remaining fuel amount display part 24 Idling integration time display part

Claims (3)

Display means capable of displaying vehicle information including at least the idling accumulated time;
A vehicle display device comprising: control means for determining whether or not the vehicle is in an idling state, measuring the idling integrated time based on the determination result, and causing the display means to display the measured time.
The display unit includes a remaining fuel amount display unit that displays a remaining fuel amount as the vehicle information, and the control unit notifies the display unit of an idling state while it is determined that the vehicle is in an idling state. A display apparatus for a vehicle, wherein the display form of the remaining fuel amount display section is changed as an idle notification display. Display means capable of displaying vehicle information including at least the idling accumulated time;
A vehicle display device comprising: control means for determining whether or not the vehicle is in an idling state, measuring the idling integrated time based on the determination result, and causing the display means to display the measured time.
The display unit includes a vehicle speed display unit that displays a vehicle speed as the vehicle information, and the control unit displays an idling notification display that informs the display unit of an idling state while it is determined that the vehicle is in an idling state. As a display device for a vehicle, the display form of the vehicle speed display unit is changed. The display means can switch and display a plurality of the vehicle information, and the control means automatically displays the idling integrated time on the display means when it is determined that the vehicle is in an idling state. vehicle display device according to claim 1 or claim 2, characterized in that.

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