JP2018060309A - Driving operation proposal method and driving operation proposal system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving operation proposal method and driving operation proposal system capable of proposing an appropriate driving operation during driving.SOLUTION: A driving operation proposal method includes: receiving driving operation information related to an acceleration/deceleration operation and vehicle environment information related to a vehicle environment when an acceleration/deceleration operation is performed from multiple vehicles 3; storing the information in a storage device; generating a driving operation model to reduce fuel consumption in a predetermined section on the basis of driving operation information and vehicle environment information stored in the storage device; and proposing a driving operation model to each driver when an own vehicle approaches a predetermined section.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a driving operation proposal method and a driving operation proposal system.

  2. Description of the Related Art Conventionally, a technique is known in which a driver provides a guide for a driver to perform eco-driving based on traveling histories collected from a plurality of vehicles (Patent Document 1). The invention described in Patent Document 1 calculates the travel performance of another vehicle from the travel history of the other vehicle, and compares the calculated travel performance of the other vehicle with the travel performance of the host vehicle.

International Publication No. 2010/122666

  Since the invention described in Patent Document 1 is configured to present the above-described comparison result, the driver can recognize the quality of the driving result after the driving is completed. However, the driver cannot recognize what kind of driving operation can be performed during driving to improve the driving result.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a driving operation proposal method and a driving operation proposal system that can propose an appropriate driving operation during driving.

  A driving operation proposal method according to an aspect of the present invention receives driving operation information related to acceleration / deceleration operation and vehicle environment information related to the vehicle environment when the acceleration / deceleration operation is performed from a plurality of vehicles, Based on the vehicle environment information, a driving operation model for reducing fuel consumption in a predetermined section is generated, and the driving operation model generated when approaching the predetermined section is proposed to the driver.

  According to the present invention, it is possible to propose an appropriate driving operation during driving.

FIG. 1 is an overall configuration diagram of a driving operation proposal system according to a first embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of the vehicle according to the first embodiment of the present invention. FIG. 3 is a block diagram showing the configuration of the data center according to the first embodiment of the present invention. FIG. 4 is a diagram illustrating the fuel consumption travel operation range according to the first embodiment of the present invention. FIG. 5A is a diagram illustrating clusters and fuel consumption according to the first embodiment of the present invention. FIG. 5B is a diagram illustrating clusters and fuel consumption according to the first embodiment of the present invention. FIG. 6 is a diagram for explaining a display example of the driving operation model according to the first embodiment of the present invention. FIG. 7 is a diagram illustrating another display example of the driving operation model according to the first embodiment of the present invention. FIG. 8 is a diagram illustrating still another display example of the driving operation model according to the first embodiment of the present invention. FIG. 9 is a flowchart for explaining an operation example of the vehicle according to the first embodiment of the present invention. FIG. 10 is a flowchart for explaining an operation example of the data center according to the first embodiment of the present invention. FIG. 11 is a flowchart for explaining an operation example of the vehicle according to the first embodiment of the present invention. FIG. 12 is a block diagram showing a configuration of a data center according to the second embodiment of the present invention. FIG. 13 is a diagram illustrating a display example of a driving operation model according to the second embodiment of the present invention. FIG. 14 is a diagram illustrating another display example of the driving operation model according to the second embodiment of the present invention. FIG. 15 is a diagram illustrating still another display example of the driving operation model according to the second embodiment of the present invention. FIG. 16 is a flowchart for explaining an operation example of the data center according to the second embodiment of the present invention. FIG. 17 is a flowchart for explaining an operation example of the vehicle according to the second embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same portions are denoted by the same reference numerals, and description thereof is omitted.

[First Embodiment]
With reference to FIG. 1, the whole block diagram of the driving operation proposal system 100 which concerns on 1st Embodiment of this invention is demonstrated. As shown in FIG. 1, the driving operation proposal system 100 includes a data center 1, a network 2, and a plurality of vehicles 3. The plurality of vehicles 3 perform bidirectional communication with the data center 1 via the network 2. The network 2 is a communication network that can transmit and receive various types of information. For example, the network 2 includes various communication lines such as a dedicated line, a public switched telephone network, a satellite communication line, and a mobile communication line installed by a telecommunications carrier. The plurality of vehicles 3 includes its own vehicle.

  Next, the configuration of the vehicle 3 will be described with reference to FIG. As shown in FIG. 2, the vehicle 3 includes a GPS receiver 10, a vehicle speed sensor 11, an accelerator opening sensor 12, a brake stroke sensor 13, a shift sensor 14, a fuel consumption acquisition unit 15, and a navigation device. 16, a storage device 20, a vehicle controller 30, a speaker 40, and a display 41.

  The GPS receiver 10 detects the current location and date / time of the vehicle 3 by receiving radio waves from an artificial satellite. The GPS receiver 10 outputs the detected location information and date / time of the current location to the storage device 20. The vehicle speed sensor 11 detects the vehicle speed of the vehicle 3 and outputs the detected vehicle speed to the storage device 20.

  The accelerator opening sensor 12 detects the accelerator opening corresponding to the depression of the accelerator pedal. The accelerator opening sensor 12 outputs the detected accelerator opening to the storage device 20. The brake stroke sensor 13 detects the amount of depression of the brake pedal. The brake stroke sensor 13 outputs the detected depression amount of the brake pedal to the storage device 20.

  The shift sensor 14 outputs an electrical signal to the storage device 20 according to the position of the shift lever. The shift sensor 14 detects an on / off state of an overdrive switch provided on the shift lever, and outputs the detected on / off state to the storage device 20. Hereinafter, the position of the shift lever is simply expressed as a shift position.

  The fuel consumption acquisition unit 15 is an engine required for realizing the acceleration required by the driver 3 for the vehicle 3 based on the vehicle speed detected by the vehicle speed sensor 11 and the accelerator opening detected by the accelerator opening sensor 12. The output of is calculated. The fuel consumption acquisition unit 15 acquires the fuel consumption based on the calculated engine output.

  The navigation device 16 sets a travel route to the destination set by the driver. The navigation device 16 outputs the set travel route to the storage device 20.

  The storage device 20 is a device that stores various data. Specifically, the storage device 20 stores the position of the vehicle 3, the vehicle speed, the travel route, the accelerator opening, the amount of depression of the brake pedal, the shift position, and the fuel consumption. The storage device 20 stores in advance vehicle identification information, which is identification information different for each vehicle 3. The accelerator opening, the amount of depression of the brake pedal, and the shift position are driving operation information related to acceleration / deceleration operations. The position, vehicle speed, travel route, and fuel consumption of the vehicle 3 are vehicle environment information related to the vehicle environment.

  The vehicle controller 30 is a circuit that processes various types of information stored in the storage device 20. Further, the vehicle controller 30 acquires driver identification information that is identification information different for each driver. The driver identification information is driver face information, for example. The vehicle controller 30 performs a predetermined process on the driver's face image captured by the camera installed in the passenger compartment to identify the driver. The driver identification information is not limited to face information, and information unique to the human body such as eye glow, voice, and fingerprint may be used as the driver identification information. The vehicle controller 30 can classify this into the transmission / reception means 31, the determination means 32, and the proposal means 33, when this is understood functionally.

  The transmission / reception means 31 communicates with the data center 1 via the network 2.

  The determination unit 32 determines whether or not the road to which the driving operation model that reduces the fuel consumption received from the data center 1 is applied is ahead of the host vehicle. The driving operation model will be described later.

  The proposing unit 33 proposes a driving operation model to the driver via the speaker 40 and the display 41 based on the determination result of the determining unit 32.

  The speaker 40 is a device that guides various data to the driver by voice. The display 41 is mounted on the navigation device 16 or the instrument panel and displays various data. The display 41 may be installed on the windshield as a so-called head-up display.

  Next, the configuration of the data center 1 will be described with reference to FIG. As shown in FIG. 3, the data center 1 includes a storage device 60 and a controller 70.

  The storage device 60 is a device that collects and stores the position, vehicle speed, travel route, accelerator opening, brake pedal depression amount, shift position, and fuel consumption amount of each vehicle 3 from the plurality of vehicles 3.

  The controller 70 is a circuit that processes various types of information stored in the storage device 60. The controller 70 uses the driver identification information stored in the storage device 60 to extract the vehicle speed, travel route, accelerator opening, brake pedal depression amount, shift position, and fuel consumption amount of each vehicle 3. Hereinafter, the vehicle speed, travel route, accelerator opening, brake pedal depression amount, shift position, and fuel consumption amount of each vehicle 3 may be simply expressed as a driving operation history. The controller 70 performs statistical analysis using the driving operation history of each vehicle 3 and generates a driving operation model. When the controller 70 grasps this functionally, the controller 70 can classify the data into data discrimination means 71, history statistics means 72, and feature quantity extraction means 73.

  The data discriminating means 71 discriminates data used for statistical analysis from time-series data of vehicle speed acquired from each vehicle 3. Specifically, the data discriminating means 71 excludes data with large fluctuations in the vehicle speed, such as a stop by a signal. The reason for excluding data with large vehicle speed fluctuations is to improve the calculation accuracy of fuel consumption. A range obtained by excluding data with large vehicle speed fluctuations from the vehicle speed time-series data is an analysis range for performing statistical analysis. That is, the time-series data of the vehicle speed included in the analysis range is data with little fluctuation in the vehicle speed. Further, the data discriminating means 71 extracts the fuel consumption travel operation range from the analysis range using the start and end timing (change timing) of the shift operation. The fuel consumption travel operation range is a section where the driver performs a shift operation in order to reduce fuel consumption. Details of the fuel consumption travel operation range will be described later. In the first embodiment, the shift operation includes on / off of overdrive in addition to up / down of the shift lever.

  The history statistical means 72 performs statistical analysis using the vehicle speed, shift position, and fuel consumption of each vehicle 3 in the fuel consumption travel operation range. In the first embodiment, cluster analysis is performed as statistical analysis. Cluster analysis is an analysis method for the purpose of classifying data into several clusters (groups).

  The feature amount extraction unit 73 extracts the cluster with the smallest fuel consumption from the analysis result by the history statistics unit 72, and generates the content and timing of the shift operation of the extracted cluster as a driving operation model.

  Next, an analysis range, a fuel consumption driving operation range, and a driving operation model for performing cluster analysis according to the first embodiment will be described with reference to FIGS. 4, 5A, and 5B. The graph shown in FIG. 4 shows the shift operation of the drivers A to D in a predetermined section on the downhill. The shift operation shown in FIG. 4 is upshift or downshift. The section shown in FIG. 4 is a section in which fluctuations in the vehicle speed of the drivers A to D are small, and is an analysis range in which cluster analysis is performed. On a downhill, fuel consumption may be less when using the engine brake to decelerate than depressing the brake pedal. The data discriminating means 71 extracts a fuel consumption travel operation range in which the drivers A to D perform a shift operation in order to reduce the fuel consumption from the analysis range shown in FIG.

  As shown in FIG. 4, the drivers A, C, and D shift up after shifting down within the analysis range, and the shift position returns to the position before the change. The driver B shifts up after shifting down within the analysis range, then shifts down, and the shift position returns to the position before the change. The shift operations of the drivers A to D coincide with each other in that the shift is changed and then returned to the original position, but the shift change timing is different. Therefore, as shown in FIG. 4, the data discriminating means 71 extracts the maximum range of the start and end timings of the shift operations of the drivers A to D as the fuel consumption travel operation range.

  Next, the history statistics unit 72 performs cluster analysis using not only the drivers A to D but also other driver data in the fuel consumption travel operation range shown in FIG. 4, and the timing of the shift operation is similar to that of the drivers A to D. Each (or the same) driver is classified and clustered.

  A cluster A shown in FIG. 5A represents a group of drivers having the same timing of the shift operation within a certain distance range as that of the driver A shown in FIG. Similarly, a cluster B illustrated in FIG. 5B represents an aggregate of drivers having the same timing of the shift operation within a certain distance range as that of the driver B illustrated in FIG. Although not shown, the history statistical unit 72 also generates a cluster C and a cluster D corresponding to the drivers C and D shown in FIG.

  Next, the history statistics unit 72 calculates the average fuel consumption of the clusters A to D, and extracts the cluster having the smallest average fuel consumption. Next, the feature amount extraction unit 73 generates the content and timing of the shift operation of the cluster with the smallest average fuel consumption as a driving operation model. That is, the driving operation model is information including the timing for performing the shift operation and the content thereof. The reason for calculating the average fuel consumption is to eliminate the influence of variations in fuel consumption.

  The controller 70 transmits the driving operation model generated by the feature amount extraction unit 73 to each vehicle 3. When the vehicle approaches the downhill shown in FIG. 4 (the road to which the driving operation model is applied), the proposing means 33 proposes the driving operation model to the driver via the display 41 before the downhill shown in FIG. . For example, as shown in FIG. 6, the proposing means 33 displays the timing (200 m ahead) for performing the shift operation of the driving operation model and the content of the shift operation (from the 4th speed to the 3rd speed) on the head-up display 41 to the driver. suggest. Accordingly, when the driver approaches the downhill shown in FIG. 4 during driving, the driver can grasp the timing and contents of the shift operation and can perform driving with less fuel consumption. Further, as shown in FIG. 7, the suggesting unit 33 may display the navigation device 16 to display the timing for performing the shift operation of the driving operation model (200 m ahead) and the content of the shift operation (overdrive off) for the proposal. . Further, as shown in FIG. 8, the proposing means 33 proposes the display 41 in the instrument panel by displaying the timing (200 m ahead) for performing the shift operation of the driving operation model and the content of the shift operation (overdrive off). May be.

  Further, the proposing means 33 provides the driver 40 with the speaker 40 for the content of the shift operation of the driving operation model when the host vehicle reaches the point where the driving operation model is shifted in the downhill section shown in FIG. Propose to. For example, the proposing means 33 can propose by voice that “Let's shift down and speed control so that it is not necessary to step on the brake”. As a result, the driver can grasp what shift operation is currently performed to reduce the fuel consumption.

  Note that, on the downhill shown in FIG. 4, the history statistical unit 72 may perform cluster analysis for each traveling speed range. Thus, when the driver approaches the downhill shown in FIG. 4 during driving, the driver can grasp the timing and contents of the shift operation according to the vehicle speed at that time.

  Next, an operation example of the vehicle 3 will be described with reference to a flowchart shown in FIG. This flowchart starts when the ignition switch is turned on.

  In step S101, the transmission / reception means 31 transmits the data stored in the storage device 20 last time, and the travel route, vehicle speed, accelerator opening, brake pedal stored in the storage device 20 until the current activation. Data relating to the amount of depression, shift position, and fuel consumption are transmitted to the data center 1.

  Next, an operation example of the data center 1 will be described with reference to the flowchart shown in FIG.

  In step S201, when the storage device 60 acquires data on the travel route, vehicle speed, accelerator opening, brake pedal depression amount, shift position, and fuel consumption from each vehicle 3 (Yes in step S201), the process is step. The process proceeds to S203. On the other hand, when the storage device 60 has not acquired data from each vehicle 3 (No in step S201), the process proceeds to step S223.

  In step S203, the data discriminating means 71 discriminates data used for statistical analysis from the time-series data of the vehicle speed acquired from each vehicle 3.

  In step S205, the data discriminating means 71 discriminates whether or not the data indicating the shift position change is within the analysis range. If the data indicating the shift position change is within the analysis range (Yes in step S205), the process proceeds to step S207. On the other hand, when the data indicating the shift position change is not in the analysis range (No in step S205), the process proceeds to step S213.

  In step S207, the data determination unit 71 determines whether or not the driver has performed a shift operation from an appropriate shift position with respect to the travel speed range. The data discriminating means 71 estimates a shift position suitable for traveling from the vehicle speed, and determines whether or not a shift operation has been performed from the estimated shift position. When the driver performs a shift operation from an appropriate shift position with respect to the traveling speed range (Yes in step S207), the process proceeds to step S209. On the other hand, when the driver has not performed a shift operation from an appropriate shift position with respect to the travel speed range (No in step S207), the process returns to step S205.

  In step S209, the data discriminating means 71 again discriminates whether or not the data indicating the shift position change is within the analysis range. If the data indicating the shift position change is within the analysis range (Yes in step S209), the process proceeds to step S211. On the other hand, when the data indicating the change of the shift position is not in the analysis range (No in step S207), the process proceeds to step S213.

  In step S211, the data discriminating means 71 determines whether or not the shift position changed in step S207 has returned to an appropriate shift position in the travel speed range. When the changed shift position returns to an appropriate shift position in the travel speed range (Yes in step S211), the process returns to step S205. On the other hand, when the changed shift position has not returned to the appropriate shift position in the travel speed range (No in step S211), the process returns to step S209.

  In step S213, the data discriminating means 71 discriminates whether or not there is a fuel consumption travel operation range. The data discriminating means 71 extracts the range where the driver intentionally changes the shift position from the appropriate shift position with respect to the travel speed range and then returns to the original shift position as the fuel consumption travel operation range. That is, the data discriminating means 71 extracts from the place where the shift is operated in step S207 to the place where the shift position is restored in step S211 as the fuel consumption travel operation range. If there is a fuel consumption travel operation range (Yes in step S213), the process proceeds to step S215. On the other hand, when there is no fuel consumption driving operation range (No in step S213), the process proceeds to step S223.

  In step S215, when the fuel consumption travel operation range ends and starts within a predetermined time, the data determination unit 71 integrates the continuous fuel consumption travel operation ranges and extracts them as one fuel consumption travel operation range.

  In step S217, the history statistics unit 72 performs cluster analysis in the maximum fuel consumption travel operation range including the fuel consumption travel operation ranges of other drivers for each travel speed range, and classifies drivers with similar shift operation timings. And cluster.

  In step S219, the history statistics unit 72 calculates the average fuel consumption of each cluster, and determines whether there is a difference in the average fuel consumption between the clusters. If there is a difference in the average fuel consumption between the clusters (Yes in step S219), the process proceeds to step S221. On the other hand, when there is no difference in the average fuel consumption between the clusters (No in step S219), the process proceeds to step S223.

  In step S221, the feature amount extraction unit 73 generates the content and timing of the shift operation of the cluster with the smallest average fuel consumption as a driving operation model.

  In step S223, the controller 70 transmits the driving operation model generated in step S221 to each vehicle 3.

  Next, an operation example of the vehicle 3 will be described with reference to the flowchart shown in FIG. This flowchart starts when the vehicle 3 receives a driving operation model from the data center 1.

  In step S <b> 301, the transmission / reception unit 31 receives a driving operation model from the data center 1.

  In step S303, the determination unit 32 determines whether the road to which the driving operation model received in step S301 is applied is ahead of the host vehicle. If the road to which the driving operation model is applied is ahead of the host vehicle (Yes in step S303), the process proceeds to step S305. On the other hand, when the road to which the driving operation model is applied is not in front of the host vehicle, the process waits.

  In step S <b> 305, when the host vehicle approaches the road to which the driving operation model is applied, the proposing unit 33 proposes to the driver the timing for performing the driving operation model shifting operation and the content of the shifting operation via the display 41.

  In step S <b> 307, the proposing means 33 proposes the content of the shift operation of the driving operation model to the driver via the speaker 40 when the host vehicle reaches the point where the driving operation model is shifted.

  As described above, according to the driving operation proposal system 100 according to the first embodiment, the following operational effects can be obtained.

  The controller 70 performs cluster analysis using the driver identification information stored in the storage device 60 and the vehicle speed, travel route, shift position, and fuel consumption amount of each vehicle 3. The controller 70 generates the content and timing of the shift operation that reduces the fuel consumption based on the analysis result as a driving operation model. Then, the controller 70 transmits the generated driving operation model to each vehicle 3 including the host vehicle. When the host vehicle approaches the road to which the driving operation model is applied, the proposing unit 33 proposes the driving operation model to the driver via the display 41. Thereby, the driving operation proposal system 100 can propose an appropriate driving operation to the driver during driving.

  Further, the controller 70 extracts the cluster with the smallest fuel consumption from the analysis result, and generates the content and timing of the extracted cluster shift operation as a driving operation model. As a result, the driving operation proposal system 100 can propose a driving operation that minimizes the fuel consumption to the driver.

  Further, the controller 70 extracts the maximum range (fuel consumption travel operation range) of the start and end timing of the shift operation of the drivers A to D as shown in FIG. 4 as the analysis range for performing the cluster analysis. By performing cluster analysis in this fuel consumption travel operation range, it is possible to propose a driving operation including from the start to the end of a shift operation that contributes to an improvement in fuel consumption.

  The driving operation model of the first embodiment includes a downshift. Shifting down increases the engine braking effect and reduces the amount of brake pedal depression. Therefore, the driver can reduce fuel consumption by shifting down according to the proposed driving operation model.

  The driving operation model of the first embodiment includes a shift up. By shifting up, the amount of depression of the accelerator pedal for maintaining the traveling speed is reduced. Therefore, the driver can reduce the amount of depression of the accelerator pedal by shifting up according to the proposed driving operation model.

  In addition, when the fuel efficiency travel operation range ends and starts within a predetermined time, the controller 70 integrates the continuous fuel efficiency travel operation ranges and extracts them as one fuel efficiency travel operation range. As a result, the controller 70 can perform cluster analysis on the change timing of a series of shift operations in a continuous fuel consumption travel operation range.

  When the vehicle approaches the road to which the driving operation model is applied, the proposing unit 33 proposes to the driver the timing for performing the shifting operation of the driving operation model and the contents of the shifting operation via the display 41. Further, the proposing means 33 proposes the content of the shift operation of the driving operation model to the driver via the speaker 40 when the host vehicle reaches the point where the driving operation model is shifted. Thus, the proposal means 33 guides the timing of the shift operation and the content of the shift operation on the display to the driver at the first time. Further, the suggesting means 33 guides the contents of the shift operation by voice at an appropriate operation timing by means different from the first time. In this way, by proposing with the second method separately, the proposing means 33 can propose an appropriate driving operation to the driver at an appropriate timing during driving.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 12, the second embodiment differs from the first embodiment in that the controller 70 further includes a comparison means 74. The description of the same components as those in the first embodiment will be omitted by citing the reference numerals, and the following description will focus on the differences.

  The comparison means 74 compares the past driving operation history of the driver of the own vehicle with the driving operation model generated by the feature amount extraction means 73, and the driving on the road to which the driver of the past own vehicle applies the driving operation model. It is determined whether or not the same shift operation as the operation model has been performed. It is assumed that the past driving operation history of the driver of the host vehicle is stored in the storage device 60.

  When the driver of the past own vehicle has performed the same shift operation as the driving operation model on the road to which the driving operation model is applied, the comparison unit 74 adds a determination value to the driving operation model transmitted to the own vehicle. The determination value is a value indicating that the driver of the host vehicle has performed the same shift operation as the driving operation model on the road to which the driving operation model is applied. The controller 70 transmits the driving operation model to which the determination value is added to the host vehicle.

  The proposing means 33 displays on the display 41 the timing for performing the shift operation of the driving operation model to which the determination value is added and the content of the shift operation when the host vehicle approaches the road proposing the driving operation model to which the determination value is added. Propose to the driver through. Next, the determination unit 32 determines whether or not a determination value is added to the driving operation model. When the determination value is added to the driving operation model, the driver has previously performed the same operation as the driving operation model on the road. In this case, when the vehicle approaches a point where the shift operation of the driving operation model to which the determination value is added is performed, the suggestion means 33 provides the content of the shift operation of the driving operation model to which the determination value is added via the speaker 40. If it is proposed to the driver, the driver may feel annoyed. Therefore, when the driver of the host vehicle performs the same shift operation as that of the driving operation model to which the determination value is added when the host vehicle reaches the point where the driving operation model to which the determination value is added is shifted, the suggestion means 33 does not make a proposal via the speaker 40. As a result, it is possible to refrain from making voice suggestions, and the driver does not have to feel bothered.

  On the other hand, when the host vehicle is approaching the point where the shift operation of the driving operation model to which the determination value is added is performed, if the driver of the own vehicle does not perform the same shift operation as the driving operation model to which the determination value is added, The proposing means 33 proposes to the driver the content of the shift operation of the driving operation model to which the determination value is added via the speaker 40. As a result, the driver can grasp what shift operation is currently performed to reduce the fuel consumption. When a driving operation model to which a determination value is added via the display 41 is proposed, the second embodiment has a smaller display range as shown in FIGS. 13 to 15 as compared to FIGS. And may make a suggestion. Since the driver has performed the same operation as the driving operation model to which the determination value has been added in the past, the troublesomeness felt by the driver can be reduced by displaying the display in such a small size.

  The determination unit 32 may determine whether or not a determination value is added to the driving operation model when the own vehicle approaches a road to which the driving operation model is applied. And when the judgment value is added to the driving operation model, the suggestion means 33 may refrain from the proposal via the display 41 and the speaker 40.

  Next, an operation example of the data center 1 will be described with reference to the flowchart shown in FIG. However, since the operations in steps S401 to S421 are the same as those in steps S201 to S221 in FIG. 10, detailed description will be omitted and only the differences will be described.

  In step S422, the comparison unit 74 compares the past driving operation history of the driver of the host vehicle with the driving operation model generated by the feature amount extraction unit 73. When the driver of the past own vehicle has performed the same shift operation as the driving operation model on the road to which the driving operation model is applied, the comparison unit 74 adds a determination value to the driving operation model transmitted to the own vehicle.

  In step S425, the controller 70 sends a driving operation model including the driving operation model to which the determination value is added to the host vehicle.

  Next, an operation example of the vehicle 3 will be described with reference to the flowchart shown in FIG. This flowchart starts when the vehicle 3 receives a driving operation model including a driving operation model to which a determination value is added from the data center 1. However, the operations in steps S501 to S505 and S509 are the same as the operations in steps S301 to S305 and S307 in FIG. 11, respectively, and thus detailed description will be omitted, and only the differences will be described.

  In step S506, the determination unit 32 determines whether a determination value is added to the driving operation model. That is, the determination unit 32 determines whether or not the driver of the host vehicle has performed the same shift operation as the driving operation model on the road to which the driving operation model is applied. When the determination value is added to the driving operation model (Yes in Step S506), the process proceeds to Step S508. On the other hand, when the determination value is not added to the driving operation model, the process proceeds to step S509.

  In step S <b> 508, the determination unit 32 performs the same shift operation as that of the driving operation model to which the determination value is added when the own vehicle reaches the point where the shifting operation of the driving operation model to which the determination value is added is performed. Determine if the driver has gone. When the driver of the host vehicle performs the same shift operation as the driving operation model to which the determination value is added (Yes in step S508), the process returns to step S503. On the other hand, if the driver of the host vehicle has not performed the same shift operation as the driving operation model to which the determination value is added (No in step S508), the process proceeds to step S509.

  As described above, according to the driving operation proposal system 100 according to the second embodiment, the following operational effects can be obtained.

  The comparison unit 74 compares the past driving operation history of the driver of the host vehicle with the driving operation model generated by the feature amount extraction unit 73. When the driver of the host vehicle has performed the same shift operation as the driving operation model on the road to which the driving operation model is applied, the comparison unit 74 adds a determination value to the driving operation model. When the driver of the host vehicle performs the same shift operation as that of the driving operation model to which the determination value is added when the host vehicle reaches a point where the shifting operation of the driving operation model to which the determination value is added is performed, the suggestion means 33 Does not make a proposal via the speaker 40. As a result, it is possible to refrain from making voice suggestions, and the driver does not have to feel bothered.

  Further, the proposing means 33 displays the timing for performing the shift operation of the driving operation model with the determination value and the content of the shift operation when the host vehicle approaches the road proposing the driving operation model with the determination value added. Propose to the driver via 41. When the driver of the host vehicle performs the same shift operation as that of the driving operation model to which the determination value is added when the host vehicle reaches the point where the shifting operation of the driving operation model to which the determination value is added is performed, the suggestion means 33 Does not make a proposal via the speaker 40. As a result, it is possible to refrain from making voice suggestions, and the driver does not have to feel bothered. On the other hand, when the host vehicle is approaching the point where the shift operation of the driving operation model to which the determination value is added is performed, if the driver of the own vehicle does not perform the same shift operation as the driving operation model to which the determination value is added, The proposing means 33 proposes to the driver the content of the shift operation of the driving operation model to which the determination value is added via the speaker 40. As a result, the driver can grasp what shift operation is currently performed to reduce the fuel consumption.

  Although the embodiments of the present invention have been described as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  Note that the storage device 20 and the storage device 60 are configured by, for example, a semiconductor memory or a hard disk. Moreover, the vehicle controller 30 and the controller 70 are microcomputers which consist of CPU, ROM, RAM, an input / output interface etc., for example.

  Note that each function of the above-described embodiment may be implemented by one or a plurality of processing circuits. The processing circuit includes a programmed processing device such as a processing device including an electrical circuit. The processing circuitry also includes devices such as application specific integrated circuits (ASICs) and conventional circuit components arranged to perform the functions described in the embodiments.

DESCRIPTION OF SYMBOLS 1 Data center 2 Network 3 Vehicle 10 GPS receiver 11 Vehicle speed sensor 12 Accelerator opening degree sensor 13 Brake stroke sensor 14 Shift sensor 15 Fuel consumption acquisition part 16 Navigation apparatus 20, 60 Storage device 30 Vehicle controller 31 Transmission / reception means 32 Determination means 33 Proposal means 40 Speaker 41 Display 70 Controller 71 Data discrimination means 72 History statistics means 73 Feature quantity extraction means 74 Comparison means 100 Driving operation proposal system

Claims (10)

Driving operation information related to acceleration / deceleration operation and vehicle environment information related to vehicle environment when the acceleration / deceleration operation is performed are received from a plurality of vehicles, and stored in a storage device.
Based on the driving operation information and the vehicle environment information, a driving operation model for reducing fuel consumption in a predetermined section is generated,
A driving operation proposing method that proposes the driving operation model to a driver when approaching the predetermined section.   2. The driving operation proposal method according to claim 1, wherein the fuel consumption amount in the predetermined section is calculated, and a driving operation model with the smallest calculated fuel consumption amount is proposed.   The driving operation proposal method according to claim 1, wherein the predetermined section is a section including a range from a start to an end of the acceleration / deceleration operation.   The driving operation model of the predetermined section is compared with the driving operation information of the host vehicle of the predetermined section, and the driving operation model is determined when the driving operation model and the driving operation information of the host vehicle are different. The driving operation proposal method according to claim 2, wherein the driving operation proposal method is proposed.   The driving operation proposal method according to any one of claims 2 to 4, wherein the driving operation information includes a downshift.   The driving operation suggestion method according to claim 2, wherein the driving operation information includes a shift up.   The driving operation suggestion method according to claim 5 or 6, wherein when the predetermined section ends and starts within a predetermined time, the driving operation model is generated in a range including all continuous sections.   The first proposal is performed before the predetermined section, and when the vehicle enters the predetermined section, the second proposal is performed by a method different from the first proposal. The driving operation proposal method according to any one of the above.   Using the driving operation model of the predetermined section and the driving operation information of the own vehicle, it is determined whether or not the own vehicle has performed the same operation as the driving operation model, and before the predetermined section Propose the first time, determine that the host vehicle has operated the same as the driving operation model, and the host vehicle is the same as the driving operation model when the host vehicle enters the predetermined section If no operation is performed, a second proposal is made using a method different from the first proposal, it is determined that the host vehicle has performed the same operation as the driving operation model, and the host vehicle is The driving operation proposal method according to any one of claims 2 to 8, wherein when the host vehicle performs the same operation as the driving operation model when entering a predetermined section, the second proposal is refrained. . A storage device that receives and stores driving operation information related to acceleration / deceleration operation and vehicle environment information related to vehicle environment when the acceleration / deceleration operation is performed from a plurality of vehicles;
Based on the driving operation information and the vehicle environment information stored in the storage device, a driving operation model for reducing fuel consumption in a predetermined section is generated, and the driving operation model is displayed when approaching the predetermined section. A driving operation proposing system comprising a controller proposing to a driver.

Images