Vehicle display device

Abstract

To provide an on-vehicle display device that allows a user to improve fuel consumption depending on efforts made in driving.SOLUTION: An on-vehicle display device includes: an environment data acquisition part for acquiring travel environment data of a route on which a vehicle is scheduled to travel; past travel data acquisition means for acquiring, as past average fuel consumption data, average fuel consumption for the route, on the basis of a travel history of the vehicle and the travel environment data; predicted travel data acquisition means for acquiring, as predicted average fuel consumption data, average fuel consumption for the route, on the basis of a travel status of the vehicle and the travel environment data; average fuel consumption comparison means for comparing the past average fuel consumption data with the predicted average fuel consumption data to determine good / poor of the fuel consumption; and display-presentation means for presenting a display of travel status with respect to the route, a display of good / poor of the fuel consumption of the predicted average fuel consumption data with respect to the past average fuel consumption data, and, when the fuel consumption of the predicted average fuel consumption data is poor with respect to the past average fuel consumption data, a display of operation that may improve the fuel consumption of the predicted average fuel consumption data with respect to the route.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vehicle display device. [Background technology]

[0002] Some car navigation devices installed in vehicles store a route to a destination as a driving track. The car navigation device shown in Patent Document 1 is connected to various devices in the vehicle so as to be able to communicate with each other, and a technology is known in which, for example, the driving track is divided into predetermined driving sections, fuel efficiency for each driving section is detected, and the driving track is displayed on a map in a color-coded manner according to the fuel efficiency value. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-180185 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the car navigation device disclosed in Patent Document 1 above does not allow the user to know whether the fuel economy is good or bad while driving, and even if the user could know whether the fuel economy is good or bad while driving, it is unclear what specific actions the user should take to improve the fuel economy.

[0005] The present invention has been made in consideration of the above circumstances, and its purpose is to provide an in-vehicle display device that can improve the vehicle's fuel efficiency through the user's driving efforts by displaying operation instructions related to improving fuel efficiency to the user while driving. [Means for solving the problem]

[0006] Provided is an in-vehicle display device that displays data related to a vehicle's fuel efficiency, the in-vehicle display device comprising: an environmental data acquisition unit that acquires driving environment data for a route along which the vehicle is scheduled to travel; past driving data acquisition means that acquires average fuel efficiency for the route as past average fuel efficiency data based on the vehicle's driving history and the driving environment data; predicted driving data acquisition means that acquires average fuel efficiency for the route as predicted average fuel efficiency data based on the vehicle's driving conditions and the driving environment data; average fuel efficiency comparison means that compares the past average fuel efficiency data with the predicted average fuel efficiency data to determine whether the fuel efficiency is good or bad; and display means that displays the driving conditions for the route, displays whether the fuel efficiency of the predicted average fuel efficiency data is good or bad compared to the past average fuel efficiency data, and, if the fuel efficiency of the predicted average fuel efficiency data is poor compared to the past average fuel efficiency data, performs operation displays to improve the fuel efficiency of the predicted average fuel efficiency data for the route. [Effects of the Invention]

[0007] According to the present invention, an in-vehicle display device is provided that can improve the fuel efficiency of a vehicle by providing operation displays related to improving fuel efficiency to a user while driving, thereby enabling the user to improve the fuel efficiency of the vehicle through the user's driving efforts. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an example of a vehicle equipped with an in-vehicle display device according to an embodiment. [Figure 2] 5A and 5B are diagrams illustrating an example of the operation of the in-vehicle display device according to the embodiment. [Figure 3] FIG. 10 is a diagram showing an example of an image in which a driving situation and an operation pop-up are simultaneously displayed on a map. [Figure 4] FIG. 10 is a diagram showing an example of an image in which pass / fail is displayed on an in-vehicle meter. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present embodiment will be described below with reference to the accompanying drawings. To facilitate understanding of the description, the same components in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

[0010] Fig. 1 is a diagram showing an example of a vehicle equipped with an in-vehicle display device according to an embodiment. As shown in Fig. 1, the vehicle 1 includes a detection device 2, a receiving device 3, and an in-vehicle display device 4, which are used to display information related to improving fuel efficiency to a user of the vehicle 1. The devices in the vehicle 1 may be configured to be able to communicate using a communication method such as CAN (Controller Area Network). The display related to improving fuel efficiency refers to, for example, displaying information to the user to reduce exhaust gas emissions and energy consumption.

[0011] The detector 2 detects information from inside the vehicle 1. The detector 2 is configured to be able to communicate with the in-vehicle display device 4. The detector 2 includes, for example, a fuel sensor, and detects fuel efficiency, which is the amount of fuel consumed per unit time by the vehicle 1. The detector 2 may also include, for example, a gyro sensor, a geomagnetic sensor, a distance sensor, a speed sensor, etc., and may detect various information such as the rotational behavior, direction, distance, speed, etc. of the vehicle 1.

[0012] The receiving device 3 receives information from outside the vehicle 1. The receiving device 3 is configured to be able to communicate with a server outside the vehicle 1 and an in-vehicle display device 4. The receiving device 3 receives information about the current location of the vehicle 1, for example, from latitude and longitude using positioning data from multiple GPS (Global Positioning System) satellites. The receiving device 3 may also receive traffic congestion information, weather information, and the like distributed from a VICS (registered trademark) (Vehicle Information Communication System) center or the like outside the vehicle 1. Note that a tablet device such as a smartphone carried by the user may be used as an alternative device to the receiving device 3.

[0013] The in-vehicle display device 4 displays data related to fuel efficiency to the user. The in-vehicle notification device 4 includes an environmental data acquisition unit 41, a fuel efficiency calculation unit 42, a memory 43, a fuel efficiency prediction unit 44, a fuel efficiency comparison unit 45, a display unit 46, and a speaker 47. The in-vehicle display device 4 displays the data related to fuel efficiency to the user based on various data acquired from the detection device 2 and the reception device 3.

[0014] The environmental data acquisition unit 41 acquires driving environment data for the route along which the vehicle 1 is scheduled to travel. For example, the environmental data acquisition unit 41 refers to a route to a destination input in advance by the user and acquires driving environment data such as traffic congestion information and weather information that may affect vehicle driving from the receiving device 3.

[0015] The past fuel efficiency calculation unit 42 calculates the average fuel efficiency for the route based on the driving history and driving environment data. For example, the past fuel efficiency calculation unit 42 acquires driving environment data from the environmental data acquisition unit 41 and acquires driving history corresponding to the route to the destination of the vehicle 1 from the memory 43, and calculates the average fuel efficiency for the route to the destination as past average fuel efficiency data based on these.

[0016] The memory 43 stores data related to the fuel efficiency display of the vehicle 1 in advance. The memory 43 stores, for example, map data including information on roads, stores, facilities, etc. for searching routes to a destination; driving history data such as average fuel efficiency data for each road type, such as national roads, prefectural roads, and expressways; operation notification pop-up data to be displayed on the display to improve the predicted average fuel efficiency data; and color data associated with the fuel efficiency rating displayed on the meter. The driving history stored in the memory 43 may be average fuel efficiency data calculated by linking road information for each road type, such as national roads, prefectural roads, and expressways, with traffic congestion, road gradients, and the number of occupants. The memory 43 may be a hard disk, a non-volatile memory, or the like.

[0017] The fuel efficiency prediction unit 44 calculates the average fuel efficiency for the route based on the driving conditions and driving environment data. For example, the fuel efficiency prediction unit 44 acquires road congestion information, weather information, etc. from the environmental data acquisition unit 41, and acquires information such as the fuel efficiency and speed of the vehicle 1 from the detection device 2, and calculates the average fuel efficiency for the route to the destination as predicted average fuel efficiency data based on these.

[0018] The fuel efficiency comparison unit 45 compares the past average fuel efficiency data with the predicted average fuel efficiency data to determine whether the fuel efficiency is good or bad. For example, the fuel efficiency comparison unit 45 compares the past average fuel efficiency data acquired from the past fuel efficiency calculation unit 42 with the predicted average fuel efficiency data acquired from the fuel efficiency prediction unit 44 to determine which is larger, and determines that the fuel efficiency is low (good fuel efficiency) if the fuel efficiency, which is the amount of fuel consumed per unit time, of the predicted average fuel efficiency data is lower than the past average fuel efficiency data, and determines that the fuel efficiency is high (poor fuel efficiency) if the fuel efficiency is higher.

[0019] The display unit 46 displays data related to fuel efficiency to the user. The display unit 46 includes a display 46a and a meter 46b. The display unit 46 uses the display 46a to display the driving status of the vehicle 1 and data related to fuel efficiency improvement, and uses the meter 46b to display a fuel efficiency evaluation based on the driving history. For example, the display 46a displays the driving status of the vehicle 1 on a map in real time while the user is driving, and if the comparison result between the past average fuel efficiency data and the predicted average fuel efficiency data performed by the fuel efficiency comparison unit 45 shows that the predicted average fuel efficiency data is poor compared to the past average fuel efficiency data, it displays an operation notification pop-up to improve the predicted average fuel efficiency data for the route. Furthermore, the meter 46b displays a color that allows the user to intuitively understand the quality of the comparison result between the past average fuel efficiency data and the predicted average fuel efficiency data performed by the fuel efficiency comparison unit 45 while the user is driving. Note that a tablet device such as a smartphone carried by the user may be used as an alternative device to the display unit 46.

[0020] The speaker 47 notifies the user by voice regarding the improvement of fuel efficiency. For example, if the comparison result between the past average fuel efficiency data and the predicted average fuel efficiency data performed by the fuel efficiency comparison unit 45 shows that the fuel efficiency is poor, the speaker 47 may display an operation notification pop-up to improve the predicted average fuel efficiency data for the route and simultaneously notify the user by voice. Furthermore, for example, if the comparison result between the past average fuel efficiency data and the predicted average fuel efficiency data performed by the fuel efficiency comparison unit 45 shows that the fuel efficiency is good, the speaker 47 may notify the user by voice that the predicted average fuel efficiency data for the route is good.

[0021] Fig. 2 is a diagram showing an example of the operation of the in-vehicle display device according to the embodiment. In Fig. 2, data display related to fuel economy to the user of the vehicle 1 proceeds according to steps S10 to S17a or steps S10 to S16b. Note that Figs. 3 and 4 are displayed as examples of data related to fuel economy displayed on the display unit 46 of the in-vehicle display device 4 while proceeding according to the steps of Fig. 2. Fig. 3 is a diagram showing an example of an image in which a driving situation and an operation pop-up are simultaneously displayed on a map. Fig. 4 is a diagram showing an example of an image in which a pass / fail result is displayed on an in-vehicle meter.

[0022] 2, a case will be described in which data related to fuel efficiency is displayed on the display 46a and the meter 46b while the user is driving. Hereinafter, details of the operation display for improving fuel efficiency performed for the user of the vehicle 1 will be described with reference to FIGS. 1, 2, 3, and 4.

[0023] In step S10, the environmental data acquisition unit 41 acquires driving environment data. The environmental data acquisition unit 41 refers to the route to the destination input in advance by the user and acquires driving environment data, such as traffic congestion information and weather information, from the receiving device 3, that may affect vehicle driving.

[0024] In step S11, the past fuel efficiency calculation unit 42 calculates past average fuel efficiency data. The past fuel efficiency calculation unit 42 acquires the driving environment data and the driving history from the environmental data acquisition unit 41 and the memory 43, respectively, and calculates the past average fuel efficiency data, which is the average fuel efficiency for the route, based on these.

[0025] In step S12, the fuel efficiency prediction unit 44 calculates predicted average fuel efficiency data. The fuel efficiency prediction unit 44 acquires the driving situation data and driving environment data from the detection device 2 and the environmental data acquisition unit 41, respectively, and calculates predicted average fuel efficiency data, which is the average fuel efficiency for the route, based on these.

[0026] In step S13, the fuel efficiency comparison unit 45 compares the past average fuel efficiency data with the predicted average fuel efficiency data. The fuel efficiency comparison unit 45 obtains the past average fuel efficiency data and the predicted average fuel efficiency data from the past fuel efficiency calculation unit 42 and the fuel efficiency prediction unit 44, respectively, and compares the magnitudes of the data.

[0027] In step S14, a determination is made as to whether the predicted average fuel consumption data is high compared to the past average fuel consumption data. If the fuel consumption per unit time of the predicted average fuel consumption data is high compared to the past average fuel consumption data, the fuel consumption is determined to be high (poor) and the process proceeds to step S15a. If the fuel consumption per unit time of the predicted average fuel consumption data is low compared to the past average fuel consumption data, the fuel consumption is determined to be low (good) and the process proceeds to step S15b.

[0028] In step S15a, the driving status is displayed on the display 46a. The display 46a is part of a car navigation device mounted on the vehicle 1 and may be a touch panel display that allows the user to input a route to a destination, and while the vehicle 1 is traveling, the display 46a displays the route to the destination and the current location of the vehicle 1 on a map. For example, as shown in FIG. 3, the driving status of the vehicle 1 may be displayed in real time on the map on the display 46a, with both the route R to the destination and a vehicle icon VI indicating the current location of the vehicle 1.

[0029] In step S16a, a red signal is displayed on meter 46b. Meter 46b displays the fuel economy along with the speed of vehicle 1 detected by detector 2, the number of engine revolutions per unit time, the amount of remaining fuel, and the like. For example, as shown in FIG. 4, meter 46b may be a HUD (Head Up Display), in which the degree of fuel economy is displayed as a gauge that expands or contracts below the speed display, and the color changes as the gauge expands or contracts. If vehicle 1 has high fuel economy (poor fuel economy), the gauge may be displayed in red, indicating a red signal. By displaying colors in this way, the user can intuitively grasp the fuel economy while driving without having to visually measure the length of the gauge.

[0030] In step S17a, an operation display for improving fuel efficiency is displayed on the display 46a. For example, as shown in Fig. 3, the operation display for improving fuel efficiency for the user of the vehicle 1 displays specific actions to be taken by the user while driving, such as operation notification pop-ups P1 to P3 ("Slow down the vehicle speed to XX km / h," "Speed ​​limit," and "Apply the brakes").

[0031] In step S15b, the driving status is displayed on the display 46a. For example, as shown in Fig. 3, the driving status of the vehicle 1 may be displayed in real time on a map on the display 46a, including both a route R to the destination and a vehicle icon VI indicating the current location of the vehicle 1.

[0032] In step S16b, a green / yellow signal is displayed on meter 46b. For example, as shown in FIG. 4, the degree of fuel economy may be displayed as an expandable gauge, and the color may change as the gauge expands or contracts. If the fuel economy of vehicle 1 is low (good), the color gauge CG may be displayed in blue as a green signal. Also, if the fuel economy of vehicle 1 is neither high (poor) nor low (good), the color gauge CG may be displayed in yellow as a yellow signal. By displaying colors in this manner, the user can intuitively grasp the quality of fuel economy while driving without having to visually estimate the length of the color gauge CG.

[0033] As described above, by using the in-vehicle display device 4 according to the present invention described in Figures 1 to 4, an in-vehicle display device is provided that can improve the vehicle's fuel efficiency through the user's driving efforts by displaying operation instructions related to improving fuel efficiency to the user while driving.

[0034] The present embodiment has been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. Design modifications to these specific examples made by a person skilled in the art as appropriate are also included within the scope of the present disclosure as long as they comprise the features of the present disclosure. The elements of the above-described specific examples, as well as their arrangement, conditions, shape, etc., are not limited to those exemplified and can be modified as appropriate. The elements of the above-described specific examples can be combined in various ways as appropriate, as long as no technical contradictions arise. [Explanation of symbols]

[0035] 1: Vehicle 2:Detection equipment 3: Receiving device 4: In-vehicle display device 41: Environmental data acquisition unit 42: Past fuel consumption calculation section 43: Memory 44: Fuel consumption prediction section 45: Fuel efficiency comparison section 46: Display section 46a: Display 46b:Meter 47: Speaker R: Route VI: Vehicle Icon P1~P3: Operation notification popup CG: Color Gauge

Claims

[Claim 1] An in-vehicle display device that displays data related to fuel efficiency of a vehicle, an environmental data acquisition unit that acquires driving environment data of a route along which the vehicle is scheduled to travel; a past travel data acquisition means for acquiring an average fuel consumption rate for the route as past average fuel consumption rate data based on the travel history of the vehicle and the travel environment data; a predicted travel data acquisition means for acquiring an average fuel consumption rate for the route as predicted average fuel consumption rate data based on the travel status of the vehicle and the travel environment data; an average fuel consumption comparison means for comparing the past average fuel consumption data with the predicted average fuel consumption data to determine whether the fuel consumption is good or bad; a display means for displaying the driving conditions for the route, displaying whether the fuel efficiency of the predicted average fuel efficiency data is good or bad compared to the past average fuel efficiency data, and, when the fuel efficiency of the predicted average fuel efficiency data is bad compared to the past average fuel efficiency data, for performing an operation display so as to improve the fuel efficiency of the predicted average fuel efficiency data for the route; An in-vehicle display device comprising:

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