JP2011075344A - Display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device for a vehicle which facilitates grasp of a difference between a displayed value and a target value and thus can contribute to improvement in the condition of operation. <P>SOLUTION: The display device for the vehicle includes a display means 1, a vehicle condition detecting means 2, and a control means 3 which determines the displayed value of an accelerator opening degree (detection object), based on the result of detection by the vehicle condition detecting means 2, and makes the display means 1 display this value. The display means 1 displays the displayed value by a first indicator part 111 and a pointer 13, and the control means 3 obtains the target value of the accelerator opening degree and makes the display means 1 display this value as a second indicator part 121 extending along the first indicator part 111. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle display device that displays vehicle information.

  2. Description of the Related Art A vehicle display device that displays various vehicle-related information (hereinafter referred to as vehicle information) such as vehicle speed, engine speed, water temperature, and hydraulic pressure, for example, displays vehicle fuel consumption information as a type of vehicle information. Yes.

  Further, as a method for displaying fuel consumption, there is known a method for displaying instantaneous fuel consumption and average fuel consumption as numbers, bar graphs, line graphs, or the like as described in Patent Document 1, for example. There is also a display method that allows the driver to judge whether the fuel consumption is good or bad by comparing the instantaneous fuel economy and the average fuel economy, and comparing the instantaneous fuel economy, which is the current fuel economy, with the average fuel economy, which is the past fuel economy. .

JP 2009-58275 A

  However, these conventional examples only display the past or immediately preceding fuel consumption obtained based on the detection data such as the fuel injection amount and the travel distance in various forms as the values spent on actual travel. Or it is difficult to grasp how much the ideal fuel consumption is, and how much it differs from the actual fuel consumption, and there was a limit to contributing to improvement of driving conditions (fuel saving if fuel consumption).

  Therefore, the present invention comprises display means, vehicle state detection means, and control means for obtaining a display value of a detection target based on the detection result of the vehicle state detection means and causing the display means to display the display value. A display device for a vehicle that displays the display value with a first indicator portion arranged in an arc and a pointer indicating the first indicator portion, wherein the control means obtains a target value of the detection target The display means displays the second indicator portion extending along the first indicator portion.

According to the present invention, the color of the second indicator portion is changed according to the difference between the display value and the target value.

According to the present invention, the display unit includes an electronic display panel that displays at least the second indicator portion in response to an input signal, and the electronic display panel displays predetermined information different from the detection target. It is characterized by.

  The present invention relates to a vehicular display device that displays a driving state, and can provide a vehicular display device that can easily grasp the difference between a display value and a target value and contribute to the improvement of the driving state.

The block diagram which shows the electrical structure in the 1st Example of this invention. The figure which shows the display part of the display apparatus for vehicles same as the above.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment to which the invention is applied will be described with reference to the accompanying drawings. The vehicle display device is mainly composed of display means 1, vehicle state detection means 2, and control means 3.

  The display means 1 includes, for example, a dial 11 on which screen printing has been performed, an electronic display panel 12 capable of displaying arbitrary information in accordance with an input signal, a pointer 13, and a stepping motor (not shown) that drives the pointer 13 And.

  The dial plate 11 has an arc-shaped indicator portion 111 that is composed of a scale and a number and indicates a display value (described later) related to the accelerator opening. In this case, the central portion of the dial plate 11 is cut out as an arc shape corresponding to the electronic display panel 12.

  The electronic display panel 12 is a flat panel display such as an LCD panel, an EL panel, or a plasma display, and is disposed so as to face the notch of the dial plate 11, and concentrically inside the first indicator portion 111. Displayed along. On the electronic display panel 12, a second indicator 121 and predetermined information 122 are displayed.

The second indicator portion 121 extends in a strip shape along the first indicator portion 111 so as to form a concentric arc with the first indicator portion 111, and a target value (described later) relating to the accelerator opening is a bar graph. The range is displayed using the shape segment.

The predetermined information 122 includes, for example, average fuel consumption information and travel distance information.

The pointer 13 is made of, for example, synthetic resin, and is connected to the stepping motor through a hole or notch in the electronic display panel 12, and the first and second are determined according to the detection result of the accelerator position sensor that constitutes the vehicle state detection means 2. The predetermined value locations of the indicator portions 111 and 121 are indicated.

The first indicator 111 can be displayed not on the dial 11 but on the electronic display panel 12. The pointer 13 and the stepping motor may be eliminated by displaying an image of the pointer corresponding to the first and second indicator portions 111 and 121 on the electronic display panel 12. Further, the second indicator portion 121 can be displayed not on the electronic display panel 12 but on the dial plate 11. In this case, for example, the dial 11 is provided with light transmitting portions that are individually divided into blocks and arranged in an arc shape, a light source is disposed behind each light transmitting portion, and the second indicator portion 12 is turned on by turning on the light source. May be displayed.

  The vehicle state detection means 2 includes various sensors including, for example, a speed sensor, a rotation sensor, a fuel injection amount sensor, a fuel sensor, and an accelerator opening sensor (detecting an accelerator pedal depression angle). A detection signal is output to the control means 3 through an ECU (engine control unit).

  The control means 3 is composed of a microcomputer equipped with a CPU, ROM, RAM, an input / output interface and the like. The control means 3 inputs various detection signals from the vehicle state detection means 2, and based on these detection signals, for example, the vehicle speed, the travel distance, the engine speed, the fuel injection amount, the remaining fuel amount, the average fuel consumption (even instantaneous fuel consumption). The accelerator opening (detection target) is obtained, and the vehicle speed, the engine speed, and the remaining fuel amount are displayed through a speedometer, engine tachometer, and fuel meter (not shown). Displays the mileage.

  In this case, the accelerator opening obtained by the control means 3 is divided into a display value and a target value of the accelerator opening to be detected.

  The display value is a value (opening degree) proportional to the accelerator depression amount by the driver at that time, and is calculated based on the detection result of the accelerator position sensor which is the vehicle state detection means 2. The display value obtained in this way is the rotation angle corresponding to the display value, and the control means 3 drives the pointer 13 through the stepping motor, so that the pointer 13 indicates a predetermined position of the first indicator 111. Is displayed. The first indicator 111 represents the range from 0% to 100% (full opening) of the accelerator opening in 10% increments. In the example of FIG. 2, the displayed value of the accelerator opening at that time is around 55%. (Fully open = 100%).

  The target value is a value (opening) that is ideal or appropriate from the viewpoint of improving the driving state such as economy, ecology, and fuel-saving driving. For example, the target value is a speed, engine rotation, Calculation processing is performed using a predetermined algorithm based on state data such as the fuel injection amount and transmission efficiency of drive control.

The target value calculated in this way is displayed in a range using the bar graph segment of the second indicator portion 121 extending along the first indicator portion 111 and showing the same common value as the first indicator portion 111. Is done. At this time, the length of the rotation direction of the second index unit 121 is expanded or contracted due to a change in the target value that accompanies the change in the state data or the power data. In the example of FIG. 2, the (upper limit) target value of the accelerator opening at that time is 40% or less, and the displayed value exceeds the upper limit of the target value.

As described above, the first index unit 111 is fixed as a reference scale, and the display value and the target value can be displayed in an analog format by using the pointer 13 and the second index unit 121 that expands and contracts with respect to the reference scale. Therefore, it is possible to know which stepping position in the entire stepping range each value is related to both the display value and the target value through the reference scale, and the driving state of the driver can be displayed more easily.

  Further, when the value of the first indicator portion 111 indicated by the pointer 13 and the upper limit value of the second indicator portion 121 are separated from each other by a predetermined value or more (whichever is positive or negative), the color of the bar graph is changed. For example, the display can be switched from green to amber.

  As described above, according to the present embodiment, the display means 1, the vehicle state detection means 2, and the display value of the accelerator opening (detection target) based on the detection result of the vehicle state detection means 2 is obtained and displayed. 1 for displaying a display value with a first indicator 111 arranged in an arc shape and a pointer 13 indicating the first indicator 111. The control unit 3 obtains a target value of the accelerator opening as a variation value that changes based on the state data based on at least the state data of the vehicle state detection unit 2 and follows the first indicator unit 111. By displaying on the display means 1 as the extended second indicator portion 121, it is possible to easily grasp the difference between the display value and the target value and contribute to the improvement of the driving state. Further, since the second indicator portion 12 is provided concentrically with the first indicator portion 11, the driver's line-of-sight movement can be reduced.

In addition, according to the present embodiment, the difference between the display value and the target value can be displayed more easily by changing the color of the second indicator unit 121 according to the difference between the display value and the target value. .

  In addition, according to the present embodiment, the display unit 1 includes the electronic display panel 12, and the electronic display panel 12 displays the predetermined information 122 different from the accelerator opening, so that a large number of display panels can be used. Information can be displayed.

In the present embodiment, the accelerator opening is described as an example of the detection target. However, for example, regarding the fuel consumption rate (fuel consumption), the carbon dioxide emission amount, and the power consumption amount, the display value and the target value that are current values are set. Anything that can be displayed is acceptable.

DESCRIPTION OF SYMBOLS 1 Display means 2 Vehicle information detection means 3 Control means 12 Electronic display panel 13 Pointer 111 1st indicator part 121 2nd indicator part 122 Predetermined information

Claims (3)

Display means, vehicle state detection means, and control means for obtaining a display value to be detected based on the detection result of the vehicle state detection means and displaying the display value on the display means, the display means being arranged in an arc shape A display device for a vehicle that displays the display value using a first index unit and a pointer that points to the first index unit, wherein the control means obtains a target value of the detection target and the first index unit. A display device for a vehicle, wherein the display means displays the second indicator portion extending along the line. The vehicle display device according to claim 1, wherein the color of the second indicator portion is changed according to a difference between the display value and the target value. The display means includes an electronic display panel that displays at least the second indicator portion in response to an input signal, and the electronic display panel displays predetermined information different from the detection target. Item 3. The vehicle display device according to Item 1 or 2.

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