JP5673213B2 - Vehicle display device and vehicle display method - Google Patents

Description

The present invention relates to a vehicle display device and a car both Table How to Display.

  In recent years, various types of vehicles including automobiles and motorcycles have increased awareness regarding improvement of fuel consumption. In view of such a background, attention has been paid to a vehicle display device that allows a vehicle occupant (typically a driver) to visually recognize the relationship between an accelerator operation amount and fuel consumption.

  For example, Patent Literature 1 discloses an accelerator opening degree display device that guides an operation region suitable for fuel efficiency so as not to deviate. This accelerator opening display device includes an accelerator opening detecting means for detecting an accelerator opening, a target opening extracting means for extracting a target accelerator opening of the accelerator opening, and a target opening display corresponding to the target accelerator opening. Display means for displaying a value and an accelerator opening display value that is a display value of the detected accelerator opening. The display means is characterized in that the target opening display value is always displayed as a predetermined value regardless of the target accelerator opening that is extracted by the target opening extraction means.

JP 2008-105559 A

  By the way, according to the method disclosed in Patent Document 1, when the vehicle is traveling at a high speed, the displayed value increases in response to the increase in the accelerator pedal opening. Since the display value is displayed within a certain region range, the display position is shifted toward the end of the region as the display value increases, and as a result, the display value display region is narrowed. For this reason, there is a disadvantage that the display resolution is lowered and it is difficult to match the accelerator operation amount to the target value through the display.

  This invention is made | formed in view of this situation, The objective is to suppress the situation where display resolution falls according to a vehicle speed.

In order to solve such a problem, according to the present invention, the control means determines the accelerator display value corresponding to the detected accelerator operation amount, and the fuel consumption is worse than the first region and the first region indicating that the fuel consumption is good. The fuel consumption state display area including the second area indicating that is displayed on the display means, and the determined accelerator display value is displayed on the display means in association with the fuel consumption state display area.
In this case, the control means enlarges the ratio of the first area in the fuel consumption state display area as the vehicle speed increases, and sets the display reference position, which is an index for determining the scale or range when displaying the accelerator display value , to the first The region boundary between the region and the second region is corrected so that the target accelerator display value, which is the target value of the accelerator operation amount, matches .

  According to the present invention, the display reference position is corrected in accordance with the increase in the proportion of the first region. Therefore, in a traveling scene where the vehicle speed is high, the displayable range of the accelerator display value is expanded. The resolution related to the display of the accelerator display value can be improved.

Explanatory drawing which shows typically the principal part of the vehicle to which the vehicle display system was applied The block diagram which shows the structure of the vehicle display system which makes the control apparatus 20 the main body Explanatory drawing which shows the display content of the display apparatus 10 typically Flow chart showing operation of vehicle display system Explanatory drawing which shows the correspondence of ECO value Ecr and accelerator opening Explanatory drawing of the state change of the fuel consumption state display area 11 according to the vehicle speed Explanatory drawing which shows the correspondence of ECO value Ecr and accelerator opening Illustration of display sensitivity according to vehicle speed Explanatory drawing which shows the other form of the fuel condition display area | region 11 and the ECO value display area | region 12. FIG.

  FIG. 1 is an explanatory diagram schematically showing a main part of a vehicle to which the vehicle display system according to the present embodiment is applied. This vehicle display system is mainly configured by a display device 10 and a control device 20, and is a system that displays predetermined information to an occupant who rides on the vehicle, typically a driver.

  The display device 10 is arranged on a part of an instrument panel, for example, an instrument panel (upper meter) IP including meters such as a speedometer, and is configured by a liquid crystal display, an organic EL (Electro-Luminescence) display, or the like. Has been. The display device 10 is controlled by the control device 20 to display predetermined information. The display device 1 may be arranged in the center cluster unit as well as the above-described configuration, or may be a head-up display that displays an image on a windshield or the like.

  FIG. 2 is a block diagram illustrating a configuration of a vehicle display system mainly including the control device 20. The control device 20 controls the display device 10 to display on the display device a fuel consumption state corresponding to the accelerator operation amount (specifically, the accelerator opening that is the depression amount of the accelerator pedal). As the control device 20, a microcomputer mainly composed of a CPU, a ROM, a RAM, and an I / O interface can be used.

  In order to perform such control, the control device 20 can acquire predetermined information from sensors that detect various types of information. For example, the display control device 20 can acquire detection information of a vehicle speed sensor (vehicle speed detection means) 30 that detects the speed (vehicle speed) of the vehicle via a CAN communication line. Further, the display control device 20 is connected to an accelerator opening sensor (operation amount detecting means) 31 for detecting the accelerator opening, and can acquire detection information of the accelerator opening sensor 31.

In relation to the present embodiment, the control device 20 has the following functions. As a first function, the control device 20 determines a target accelerator opening that is a target value of the accelerator opening that is set corresponding to the vehicle speed, based on the current vehicle speed. Further, based on the target accelerator opening and the current accelerator opening, the control device 20 determines a display value (hereinafter referred to as “ECO value”) for displaying the value in a predetermined length area in the display device 10. (Decision means). That is, the control device 20 determines a target ECO value corresponding to the target accelerator opening and a current ECO value corresponding to the current accelerator opening. In the present embodiment, the ECO value, for example, "0" is composed of an index of 31 levels from "30", "0" corresponds to the maximum accelerator opening (100%), "30 "corresponds to the minimum accelerator opening (0%).

  FIG. 3 is an explanatory diagram schematically showing display contents of the display device 10. As a second function, the control device 20 displays the fuel consumption state display area 11 on the display device 10, controls the display state, and displays the ECO value display region 12 on the display device 10. To control.

  The fuel consumption state display area 11 is set, for example, in a bar shape (horizontal bar shape) having a predetermined length in the horizontal direction and a predetermined width in the vertical direction. The fuel efficiency state display area 11 includes a good fuel efficiency area (first area) R1 indicating that the fuel efficiency is good, and a non-good fuel efficiency area (second area) R2 indicating that the fuel efficiency is worse than the good fuel efficiency area. Each is displayed. The boundary (hereinafter referred to as “region boundary”) Th between the good fuel efficiency region R1 and the non-good fuel efficiency region R2 is set so as to correspond to a target ECO value in an ECO value display region 12 described later. Is set to a predetermined initial position defined in advance with a predetermined length in the horizontal direction as a reference.

  On the other hand, the ECO value display area 12 is set in a bar shape (horizontal bar) having the same predetermined length in the horizontal direction as the fuel efficiency state display area 11 and a predetermined width in the vertical direction. Displayed below. In the ECO value display area 12, a scale corresponding to the ECO value is set in the horizontal direction, and the current ECO value Ecr is displayed. The ECO value display area 12 compares the display position of the current ECO value Ecr with the fuel consumption state display area 11 displayed immediately above, to determine whether the current ECO value Ecr corresponds to the fuel efficiency area R1 or It can be visually recognized whether the fuel efficiency falls within the non-good fuel efficiency region R2.

As described above, region boundary Th displayed on the mileage status display area 11 (position in the horizontal direction) is basically that is displayed in the initial position of the fuel efficiency state display area 11 (initial display state). The control device 20 according to the present embodiment performs the following control in accordance with correction of an ECO value Ecr described later, based on such display control. Specifically, the control device 20 displays so as to shift the region boundary Th of the fuel consumption state display region 11 toward the non-good fuel consumption region R2 side as the vehicle speed increases, that is, to increase the ratio of the good fuel consumption region R1. The apparatus 10 is controlled. Further, the control device 20 changes the display reference position for displaying the ECO value Ecr in the ECO value display area 12. That is, the control device 20 executes control to relatively move the display position of the ECO value Ecr in accordance with the increase in the ratio of the fuel-efficient region R1.

  FIG. 4 is a flowchart showing the operation of the vehicle display system according to the present embodiment. The processing shown in this flowchart is called by the control device 20 and executed at a predetermined cycle.

  First, in step 1 (S1), the control device 20 detects the vehicle speed. In step 2 (S2), the control device 20 detects the accelerator opening.

In step 3 (S3), the control device 20 determines an ECO value Ecr. The control device 20 holds in advance a map and an arithmetic expression that define the correspondence between the ECO value Ecr and the accelerator opening for each of various vehicle speeds, and determines the ECO value Ecr based on the vehicle speed and the accelerator opening. . For example, as shown in FIG. 5A, the correspondence relationship between the ECO value Ecr and the accelerator opening indicates that each target accelerator opening has a predetermined target ECO even if the target accelerator opening is different for each vehicle speed. It is set to correspond to the value Et. For example, in the case of the vehicle speed V1, the ECO value Ecr decreases linearly from “ 30 ” as the accelerator opening increases from “0” to “target accelerator opening Tac1,” and “target accelerator opening Tac1”. The target ECO value Et becomes a "target ECO value Et". As the accelerator opening increases from "target accelerator opening Tac1" to "100", the target ECO value Et decreases linearly . Further, when the vehicle speed is “V2” larger than “V1”, the ECO value Ecr increases linearly from “ 30 ” as the accelerator opening increases from “0” to “target accelerator opening Tac2”. Decreases to “target ECO value Et0” at “target accelerator opening Tac2”, and decreases linearly from “target ECO value Et” as the accelerator opening increases from target accelerator opening Tac2 to “100”. .

Here, the value of the target accelerator opening degree Tac is preset according to the vehicle speed. For example, as shown in FIG. 5B, the target accelerator opening degree Tac is set so that the value thereof increases as the vehicle speed increases. When the vehicle speed V1 is on the low speed side, the target accelerator opening is “Tac1”, and when the vehicle speed V2 is high (V1 <V2), the target accelerator opening is “Tac2” that is larger than “Tac1”. is there. In addition, when the vehicle is traveling at a certain vehicle speed and the actual accelerator opening is larger than the target accelerator opening Tac, the accelerator opening is regarded as a non-good fuel consumption region, and the actual accelerator opening is not the target accelerator opening. When the degree is smaller than the degree Tac, the accelerator opening can be regarded as a fuel efficiency range (see FIG. 5B).

  In step 4 (S4), the control device 20 performs a correction process. Specifically, the control device 20 corrects the display range of the fuel-efficient region R1, that is, the display position of the region boundary Th, according to the current vehicle speed. Thereby, the control apparatus 20 implement | achieves the display mode which enlarges the ratio of the fuel-efficient area | region R1 in the fuel-consumption state display area 11, so that the vehicle speed is large. For example, as shown in FIG. 6, the control device 20 divides the vehicle speed into four stages of low speed, low medium speed, medium high speed, and high speed, and according to the individual vehicle speed, the fuel efficiency range in the fuel efficiency state display area 11. Increase the ratio of R1.

  When the vehicle speed is low, the control device 20 determines that the fuel efficiency region R1 and the fuel efficiency region R1 are such that the region boundary Th1 between the fuel efficiency region R1 and the non-good fuel efficiency region R2 is the initial position set in advance in the fuel efficiency state display region 11. The non-good fuel efficiency region R2 is displayed (initial display state). On the other hand, when the vehicle speed is a low / medium speed larger than the low speed, the control device 20 shifts by a predetermined amount (for example, “1 display index”) toward the non-good fuel efficiency region R2 side as compared with the region boundary Th1 at the time of low speed. A region boundary Th2 is set at the position. Similarly, when the vehicle speed is medium to high, which is larger than the low to medium speed, the control device 20 has an area at a position shifted by a predetermined amount toward the non-good fuel efficiency area R2 compared to the area boundary Th2 at the time of low to medium speed. When the boundary Th3 is set and the vehicle speed is higher than the medium-high speed, the control device 20 shifts the region to a position shifted by a predetermined amount toward the non-good fuel efficiency region R2 compared to the region boundary Th3 at the medium-high speed. A boundary Th4 is set. Thereby, the ratio of the good fuel consumption area | region R1 in the fuel consumption state display area | region 11 is expanded, so that a vehicle speed is large.

  In response to this, the control device 20 corrects the display reference position for displaying the ECO value Ecr in the ECO value display area 12. Here, the display reference position is a reference index for defining an aspect of the ECO value Ecr displayed in the ECO value display area 12 (an aspect in which the scale or range is displayed). When the region boundary Th is set at the initial position of the fuel consumption state display region 11, the control device 20 displays the initial position so that the display position of the target ECO value in the ECO value display region 12 matches. The reference position is set. However, as described above, when the position of the region boundary Th is corrected according to the vehicle speed, the display position of the corrected region boundary Th matches the display position of the target ECO value in the ECO value display region 12. In this way, the display reference position is corrected. For example, when the vehicle speed is low and medium, the region boundary Th is shifted toward the non-good fuel efficiency region R2 by one display index, and the display position of the target ECO value in the ECO value display region 12 is also displayed as one. It seems that the display reference position is corrected so that only the index is shifted toward the non-good fuel efficiency region R2. As a result, the substantial display range is expanded from the display position of the target ECO value to the direction in which the ECO value increases. Further, the control device 20 substantially changes the display position of the ECO value Ecr by correcting the display reference position.

  In step 5 (S5), the control device 20 displays the fuel consumption state display region 11 on the display device 10 and the ECO value display region 12 on the display device 10 according to the above-described setting. Further, when the ratio of the fuel-efficient region R1 is enlarged, the control device 20 maintains the initial display state (region boundary Th1) before the enlargement as shown in FIG. As shown in the boundaries Th2, Th3, Th4, the fuel efficiency range R1 is expanded stepwise.

  Here, when the ratio of the fuel efficiency region R1 is expanded, the control device 20 performs normal control for changing the display state accompanying the expansion at a normal speed, and rapid control for changing the display state more rapidly than the normal speed. And. The control device 20 can switch from the normal control to the rapid control when it is determined that the operation state of the driver is rough while giving priority to the normal control. In this embodiment, the method for determining whether or not the driver's operation state is rough can be performed through a change in the accelerator opening, but in addition to this, the driver's operation such as the brake operation amount or the steering wheel operation amount can be performed. The determination may be made with reference to the detection result of the sensor (operation state detecting means) for detecting the state.

  Further, the control device 20 can switch from the above-described rapid control to the resolution improvement control when determining the traveling environment (low-speed traveling environment) in which the vehicle travels at a low vehicle speed. Here, the resolution improvement control is control in which the resolution between the current ECO value Ecr and the target ECO value is improved when the vehicle speed is low and the accelerator opening is small. In this embodiment, a method for determining whether or not the vehicle is in a low-speed driving environment can be performed through the vehicle speed. However, in addition to this, means for detecting the driving environment such as traffic information by a navigation system (traveling environment) The determination may be made with reference to the detection result of the detection means.

  Thus, according to this embodiment, the vehicle display system is controlled by the control device 20 that determines information to be displayed based on the detection results of the vehicle speed sensor 30 and the accelerator opening sensor 31, and the control device 20. And a display device 10 for displaying the determined information. Here, the control device 20 determines (1) an ECO value Ecr that is an accelerator display value corresponding to the detected accelerator operation amount (determining means), and (2) a good fuel efficiency region R1 and a non-good fuel efficiency region R2. Is displayed on the display device 10, and the determined ECO value Ecr is displayed on the display device 10 in association with the fuel consumption state display region 11 (display control means). In this case, the control device 20 increases the ratio of the good fuel economy region R1 in the fuel consumption state display region as the vehicle speed increases, and corrects the display reference position for displaying the ECO value Ecr.

  According to such a configuration, the display reference position is corrected in accordance with the increase in the ratio of the fuel-efficient region R1, and thus the displayable range of the ECO value Ecr is expanded in a traveling scene where the vehicle speed is high. The resolution related to the display of the ECO value Ecr can be improved. Accordingly, it becomes easy for the driver to adjust the accelerator opening (ECO value Ecr) to the target accelerator opening (target ECO value) through the display, and it becomes easy to perform driving with good fuel consumption.

  In the present embodiment, when the ratio of the fuel efficiency region R1 is expanded, the control device 20 maintains the initial display state before the expansion as shown in FIG. The region R1 is enlarged step by step. According to this configuration, the resolution related to the display of the ECO value Ecr can be further improved.

  Further, in the present embodiment, when the ratio of the fuel-efficient region R1 is expanded, the control device 20 performs normal control in which the display state change accompanying the expansion is performed at a reference speed, and the display state changes from the normal speed. And rapid control for rapidly performing. According to such a configuration, in the rapid control as compared with the normal control, the display state changes abruptly according to the accelerator opening, so that it is possible to realize a display more sensitive to the driver's operation.

  In this case, the control device 20 switches from the normal control to the rapid control when it is determined that the operation state of the driver is rough while giving priority to the normal control. According to such a configuration, when rapid control is applied to a driver with a rough accelerator operation, the display state changes rapidly, so that the driver can be encouraged to drive more ecologically.

  Further, in the present embodiment, when the vehicle speed is low and the accelerator opening is small, the control device 20 improves the resolution between the current accelerator display value and the display value corresponding to the target accelerator operation amount. I do. According to such a configuration, even when the accelerator opening is small, improvement in resolution can be emphasized.

  In this case, the control device 20 switches from the above-described rapid control to resolution improvement control when determining the traveling environment in which the vehicle travels at a low vehicle speed. According to such a configuration, the resolution can be improved in a low-speed environment such as when traveling in a traffic jam, so that the accelerator operation following the target value can be easily performed.

  In the present embodiment, as shown in FIG. 5 (FIG. 7 (c)), as the vehicle speed increases, the degree of bending is eased and the linear tendency is reduced as the correspondence relationship between the ECO value Ecr and the accelerator opening. It is set to approach. However, the present embodiment is not limited to this, and as shown in FIG. 7A, it may be set linearly regardless of the vehicle speed, or as the vehicle speed increases in FIG. The relationship may be set so that the inclination becomes gentle.

  Further, the display sensitivity of the ECO value Ecr in the ECO value display area 12 may be changed according to the vehicle speed according to the vehicle speed. For example, as shown in FIG. 8, the display sensitivity is increased when the vehicle speed is low, and the display sensitivity is decreased when the vehicle speed is high. That is, when the vehicle is traveling at a low speed, the display changes sharply according to the change in the ECO value Ecr. On the other hand, when the vehicle is traveling at a high speed, the display is changed according to the change in the ECO value Ecr. The display will change dull. Thereby, when accelerating slowly from a constant speed, the display change of the ECO value Ecr becomes gradual, so that an effect that the accelerator operation becomes easier can be achieved.

  In the present embodiment, the fuel consumption state display area 11 and the ECO value display area 12 are configured in a horizontal bar shape, but may be realized in various forms as long as they are displayed in association with each other. . For example, the fuel consumption state display area 11 and the ECO value display area 12 may be set in a vertical bar shape, or may be formed in a bar shape inclined obliquely as shown in FIG. Furthermore, as shown in FIG. 9B, it may be set in a circular shape, or as shown in FIG. 9C, it may be set in a ring shape.

  As mentioned above, although the vehicle display apparatus and the vehicle display method concerning embodiment of this invention were demonstrated, this invention is not limited to embodiment mentioned above, A various deformation | transformation is possible within the scope of the invention. Needless to say.

DESCRIPTION OF SYMBOLS 10 Display apparatus 11 Fuel consumption state display area 12 ECO value display area R1 Good fuel consumption area R2 Non-good fuel consumption area Th area | region boundary Ecr ECO value 20 Control apparatus 30 Vehicle speed sensor 31 Accelerator opening sensor

Claims (8)

An operation amount detecting means for detecting an accelerator operation amount;
Vehicle speed detection means for detecting the vehicle speed;
Control means for determining information to be displayed based on detection results of the operation amount detection means and the vehicle speed detection means;
Display means controlled by the control means and displaying the determined information;
The control means includes
Determining means for determining an accelerator display value corresponding to the detected accelerator operation amount;
A fuel consumption state display area including a first area indicating that the fuel consumption is good and a second area indicating that the fuel consumption is worse than that of the first area is displayed on the display means, and is associated with the fuel consumption state display area. Display control means for displaying the determined accelerator display value on the display means,
The display control means increases a ratio of the first area in the fuel consumption state display area as the vehicle speed increases, and sets a display reference position that is an index for determining a scale or a range when displaying the accelerator display value. A vehicle display device that corrects an area boundary between the first area and the second area so that a target accelerator display value that is a target value of the accelerator operation amount matches .   When the ratio of the first area is enlarged, the display control means expands the first area in stages as the vehicle speed increases while maintaining the initial display state before enlargement. The vehicle display device according to claim 1.   When the ratio of the first region is enlarged, the display control means performs normal control for changing the display state accompanying the enlargement at a reference speed, and rapidly for changing the display state more rapidly than the reference speed. The vehicle display device according to claim 2, further comprising a control.   When the vehicle speed is low and the accelerator opening is small, the display control means performs resolution improvement control that improves the resolution between the current accelerator display value and the display value corresponding to the target accelerator operation amount. The vehicle display device according to claim 3.   The said display control means switches from the said normal control to the said rapid control, when it judges that the operation state of a driver is rough, giving priority to the said normal control. Vehicle display device. 5. The vehicle display device according to claim 4, wherein the display control unit switches from the rapid control to the resolution improvement control when determining a traveling environment in which the vehicle travels at a low vehicle speed.   The display control means sharpens the display sensitivity of the accelerator display value corresponding to the change in the accelerator operation amount as the vehicle speed decreases, and decreases the display sensitivity as the vehicle speed increases. The vehicle display device described in any of the above. An operation amount detecting means for detecting an accelerator operation amount;
Vehicle speed detection means for detecting the vehicle speed;
Control means for determining information to be displayed based on detection results of the operation amount detection means and the vehicle speed detection means;
A vehicle display method in a vehicle display device, comprising: a display unit that is controlled by the control unit and displays the determined information;
A first step in which the control means inputs detection values from the operation amount detection means and the vehicle speed detection means;
A second step in which the control means determines an accelerator display value corresponding to a current accelerator operation amount;
Said control means, and displays on the display means the fuel efficiency state display region and a second region showing that the fuel consumption than the first region and the first region is poor indicating that fuel efficiency, the fuel consumption status A third step of displaying the accelerator display value on the display means in association with a region;
In the third step, as the vehicle speed increases, the ratio of the first region in the fuel consumption state display region is enlarged , and a display reference position that is an index for determining a scale or a range for displaying the accelerator display value The vehicle display method characterized by including the step which correct | amends so that the area | region boundary of the said 1st area | region and the said 2nd area | region and the target accelerator display value which is the target value of the said accelerator operation amount may correspond .

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