JP2012212303A - Driving operation support device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect a travel environment that should be taken into consideration in improving driving operation and provide a driving message corresponding to the travel environment.SOLUTION: An operation history generating unit 12 acquires driving operation information showing a driving operation amount of a vehicle and travel environment information showing a travel environment in a travel route of the vehicle and stores the driving operation information and the travel environment information in association with each other. An object operation selection unit 40 calculates an evaluation value of the driving operation amount for each combination of the travel environment information and extracts object operation information showing the type of the driving operation amount to be an object of driving evaluation based on the evaluation value. An environment factor estimation unit 44 extracts environment factor information to be an object of the operation evaluation based on expression probability distribution of the driving operation amount from a combination of the travel environment information corresponding to the object operation information. A message extraction unit 46 extracts a driving message referring to a message DB 48 based on the object operation information and the environment factor information.

Description

  The present invention relates to an apparatus for supporting driving operation of a vehicle, and more particularly to an apparatus for providing a message related to driving of a vehicle to a driver.

  As a safe driving promotion device that provides various advices for promoting safe driving, for example, in the safe driving promotion device described in Patent Document 1, a driving diagnosis value is calculated for each diagnostic item such as an accelerator operation and a steering wheel operation, A weighting coefficient map that shows weighting factors for each driving environment such as driving location, time, and weather is provided, and the most appropriate advice is obtained by performing a correction operation on the driving diagnosis value using the weighting coefficient according to the driving environment. The information of the diagnostic items to be performed (for example, the increase of the brake pedal in the curve) and the driving environment (for example, the snowy mountain) where the weighting coefficient has the maximum value is extracted, and a driving message is output by combining these.

JP 2010-97480 A

  However, in the apparatus described in Patent Document 1, no consideration is given to providing a driving message from the viewpoint of improving the driving operation under a specific environment, and there is a case where the driving operation is not fundamentally improved. is there.

  For example, for a certain driver, even if there is a tendency to suddenly accelerate in a specific driving environment of uphill, if a small value is set as a weighting coefficient for uphill in the weighting coefficient map, this element is In many cases, another driving environment (for example, a highway) having a high weighting coefficient is extracted without being selected in providing a driving message. In other words, a message such as "Let's refrain from overtaking on the highway" is output to drivers who rarely overtake on the highway and accelerate rapidly on an uphill. There was a problem that messages necessary for improvement could not be output.

  The present invention has been made in view of the above circumstances, and provides a driving operation support device capable of detecting a driving environment to be considered in improving driving operation and providing a driving message corresponding to the driving environment. With the goal.

  The driving operation support apparatus according to the present invention acquires driving operation information indicating a driving operation amount of a vehicle and driving environment information indicating a driving environment on the driving route of the vehicle, and corresponds to the driving operation information and the driving environment information. A driving operation history generation unit that stores the information and the evaluation value of the driving operation amount is calculated based on the traveling environment information, and the type of the driving operation amount that is to be a target of driving evaluation based on the evaluation value. A target operation selection unit that extracts target operation information to be displayed; an environmental factor estimation unit that extracts environmental factor information to be a target of driving evaluation from the driving environment information corresponding to the target operation information; and the target operation It has a configuration including a message extraction unit that extracts a driving message based on the information and the environmental factor information.

  With this configuration, information on the type of driving operation amount to be evaluated and driving environment information to be considered are extracted, and a driving message is extracted based on the driving operation amount and driving environment information. Therefore, it is possible to provide a driving message in consideration of the driving environment.

  In the driving operation support device of the present invention, the driving operation history generation unit acquires the driving operation information, and classifies the traveling state of the vehicle based on the driving operation information, and the classified For each individual driving state, a representative value of the driving environment information is extracted to estimate the driving environment in the driving state, and the representative value of the driving environment information is associated with the driving operation information. And a storage unit for storing the information. With this configuration, traveling environment information can be acquired efficiently, and data to be processed can be reduced.

  In the driving operation support device according to the present invention, the operation information acquisition unit classifies the vehicle as another running state when the running state of the vehicle does not change for a certain period of time. As a result, the traveling environment information can be effectively acquired even when the traveling state of the vehicle does not vary greatly, such as when traveling at a constant speed.

  The driving operation support device of the present invention includes a traveling environment prediction unit that acquires the traveling environment information on the planned traveling route of the vehicle, and the target operation selecting unit applies the traveling environment information included in the planned traveling route. Thus, the evaluation value of the driving operation amount is calculated and the target operation information is extracted. With this configuration, it is possible to output a driving message in consideration of the driving environment with respect to a route that the driver plans to travel from now on, and further improve the driving operation.

  The driving operation support device of the present invention includes a travel route prediction unit that acquires travel route information indicating a plurality of planned travel routes, a travel environment prediction unit that acquires the travel environment information corresponding to each of the planned travel routes, It has a configuration including a route pattern candidate selection unit that calculates an evaluation value of the driving operation for each planned travel route and selects a planned travel route based on the evaluation value of the planned travel route. With this configuration, an appropriate travel route can be selected from a plurality of travel routes in consideration of the travel environment.

  The driving operation support device of the present invention includes a map information storage unit storing map information indicating the travel route, a map image including the travel route, and an output unit that outputs and displays the driving message in a superimposed manner. Have a configuration. With this configuration, a map image and a driving message can be output and displayed at the same time. For example, a driving message can be output and displayed effectively by displaying a specific road section on the driving route in association with the driving message. it can.

  The driving operation support method according to the present invention acquires driving operation information indicating a driving operation amount of a vehicle and driving environment information indicating a driving environment on the driving route of the vehicle, and corresponds to the driving operation information and the driving environment information. A driving operation history generation step to be added and stored, and an evaluation value of the driving operation amount is calculated based on the traveling environment information, and a type of the driving operation amount to be subjected to driving evaluation based on the evaluation value is determined. A target operation selecting step for extracting target operation information to be shown; an environment factor estimating step for extracting environmental factor information to be a target of driving evaluation from the driving environment information corresponding to the target operation information; and the target operation And a message extraction step for extracting a driving message based on the information and the environmental factor information. Also with this configuration, similarly to the above, information on the type of driving operation amount that should be the target of driving evaluation and information on the driving environment to be considered are extracted, and based on these driving operation amount and information on the driving environment Since the driving message can be extracted, it is possible to provide the driving message in consideration of the driving environment.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the driving message which considered driving environment by extracting a driving message based on the amount of driving operation which should be the object of driving evaluation, and the information of driving environment.

The block diagram which shows the structure of the driving operation assistance apparatus which concerns on 1st Embodiment of this invention. Explanatory drawing which shows an example of a driving state and corresponding operation amount information Explanatory drawing which shows the procedure which extracts the driving environment information in a certain driving section Explanatory drawing which shows an example of the information memorize | stored in driving operation log | history DB Explanatory drawing which shows a mode that the probability distribution of the amount of driving operation was generated for every driving environment (A) is explanatory drawing which shows probability distribution of the operation amount of the average acceleration in a certain driving environment, (b) is explanatory drawing which shows an example of the evaluation value information memorize | stored in diagnostic model DB Explanatory drawing which shows an example of probability distribution of the average acceleration calculated for each driving environment Explanatory drawing which shows the procedure which extracts a driving message based on driving environment factor and operation amount information A flowchart showing a procedure of processing for extracting a driving message The block diagram which shows the structure of the driving operation assistance apparatus which concerns on 2nd Embodiment of this invention. The figure which shows the example in which the map image and the driving message are displayed overlapping The block diagram which shows the structure of the driving operation assistance apparatus which concerns on 3rd Embodiment of this invention.

  A preferred embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing the configuration of the driving operation support apparatus according to the first embodiment of the present invention. The driving operation support device 10 is mounted on a vehicle, for example, and includes an operation history generation unit 12 and a message generation unit 14. The operation history generation unit 12 is connected to a communication unit 16 for inputting traffic information, a vehicle information detection unit 18 for inputting vehicle travel information, and a navigation device 20 for inputting route information. The message generation unit 14 is connected to an input unit 22 for inputting a message generation instruction and a message output unit 24 for outputting the generated message.

  The communication unit 16 is a wireless communication module that can handle, for example, radio wave beacons and optical beacons, receives traffic information such as traffic jam information from a VICS (Vehicle Information and Communication System) center, and outputs the traffic information to the operation history generation unit 12. . This traffic information includes, for example, three types of information of “congestion”, “congestion”, and “smooth” for a road in a certain section.

  The vehicle information detection unit 18 is, for example, a speed sensor, an acceleration sensor, an accelerator opening sensor, and an ignition sensor provided in the vehicle, and information on vehicle speed (vehicle speed), acceleration, accelerator opening, and ignition ON / OFF information. Is output to the operation history generation unit 12. The vehicle information detection unit 18 includes an inclination sensor that detects the inclination of the vehicle in the vertical direction and acquires road gradient information, and an inclination sensor that detects the inclination of the vehicle in the horizontal direction and detects the presence or absence of a curve. May be.

  The navigation device 20 includes a navigation ECU 20a that generates route information for realizing a navigation function, and a map database 20b that stores map information, and includes vehicle position information (longitude / latitude information) and a current position. Information such as a certain range of road information and travel direction information is output to the operation history generation unit 12.

  The operation history generation unit 12 includes an operation information acquisition unit 30, a travel environment acquisition unit 32, a travel environment estimation unit 34, and a driving operation history DB 36, and is input from the communication unit 16, the vehicle information detection unit 18, and the navigation device 20. Based on the various information, a driving operation history indicating a driving operation history for each traveling environment is generated.

  The operation information acquisition unit 30 receives various information from the vehicle information detection unit 18 and acquires information (driving operation information) related to driving operation such as vehicle speed, average speed, acceleration, accelerator opening, ignition on / off. The driving state of the vehicle is detected from the driving operation information, and information on the driving operation amount in the driving state is generated.

  An example of information acquired by the operation information acquisition unit 30 is shown in FIG. In FIG. 2, for simplicity of explanation, the vehicle is stopped during the time T1 to T2, accelerated during the time T2 to T3, traveled at a substantially constant speed from the time T3 to T5, A case where the vehicle decelerates from time T5 to T6 and the vehicle stops at time T6 will be described as an example.

For example, the operation information acquisition unit 30 determines the traveling state of the vehicle from “stop”, “acceleration”, “steady”, and “deceleration” based on the following conditions. The following conditions are merely examples, and the present invention is not limited to these four traveling states.
Stop: Vehicle speed 0km / h
Acceleration: acceleration 0.5 m / s ² or more Steady state: vehicle speed 30 km / h or more and acceleration less than 0.5 m / s ² Deceleration: accelerator opening 0% (excluding vehicle speed 0 km / h)

Explaining in accordance with the above-described traveling example, the operation information acquisition unit 30 determines the traveling state as “stopped” because the vehicle speed is 0 km / h (stopped) from time T1 to time T2. When it is detected at time T2 that the acceleration of the vehicle is 0.5 m / s ² or more, the traveling state of the vehicle is determined as “acceleration” until another traveling state is reached. At time T3, since it is detected that the acceleration of the vehicle is less than 0.5 m / s ² and the vehicle speed is 30 km / h or more, the operation information acquisition unit 30 sets the traveling state to “steady”. Determine. Then, at time T5, when it is detected that the accelerator opening is 0%, the operation information acquisition unit 30 determines the traveling state as “deceleration”. Thereby, the traveling state of the vehicle can be classified.

  Note that, for example, while traveling on a road without a signal (such as a highway), the time corresponding to the “steady” state takes a long time. Divide the running state with. That is, in the traveling example of FIG. 2, the traveling state is divided into “stop”, “acceleration”, “steady”, “steady”, and “deceleration” with respect to each time point of time T1, T2, T3, T4, T5, and T6. The

  And the operation information acquisition part 30 acquires the information (operation amount information) of the driving | operation amount in each divided driving state based on the various information input from the vehicle information detection part 18. FIG. For example, in the “stop” state, the time during which the ignition is on and the integrated value of the accelerator opening are calculated and output as operation amount information. Further, in the “acceleration” state, average acceleration is calculated and output as manipulated variable information. Further, in the “steady” state, deviations in average vehicle speed and acceleration are calculated and output as manipulated variable information. Further, in the “deceleration” state, the time during which the accelerator opening is 0 (that is, the time during which the accelerator is OFF) is measured, and this is output as operation amount information. Note that the type of operation amount information extracted in each traveling state is merely an example, and is not limited to the operation amount information described in the present embodiment.

  The operation information acquisition unit 30 outputs the travel state information and the operation amount information obtained by the above method to the travel environment estimation unit 34.

  The travel environment acquisition unit 32 generates travel environment information indicating the current road conditions based on various information input from the communication unit 16, the vehicle information detection unit 18, and the navigation device 20. This driving environment information includes, for example, road type (high speed, narrow street, etc.), road gradient (up, down, flat), presence of curves, presence of intersections, traffic congestion (congestion, congestion, steady), Information on a link ID for identifying a road is included. Note that the traveling environment information is merely an example, and the traveling environment information is not limited to the traveling environment information described in the present embodiment.

  Here, the road type, road gradient, and information on the presence / absence of a curve / intersection can be acquired based on road information from the navigation device 20. That is, by acquiring position information (longitude / latitude) that is currently running by position detecting means such as GPS provided in the navigation device 20, road information is obtained by referring to the map DB 20b. Information on the type, road gradient, and link ID can be acquired. In addition, the traveling environment acquisition unit 32 reads out a predetermined range of map data based on the current traveling position, so that whether the traveling road is a curve or not, an intersection is located near (for example, within 50 meters). It can be detected whether or not it exists.

  The travel environment acquisition unit 32 acquires the travel environment information described above at predetermined time intervals and outputs the obtained travel environment information to the travel environment estimation unit 34. The driving environment estimation unit 34 extracts, for each section of the driving state divided by the operation information acquisition unit 30, the one having the highest frequency from the plurality of driving environment information from the driving environment acquisition unit 32. The driving environment is determined.

  FIG. 3 is an explanatory diagram showing the process of extracting the mode information of the travel environment in the travel environment estimation unit 34, and here, the process during the time T3 to T4 (steady state) in FIG. 2 is shown. . The table on the upper side of FIG. 3 shows an example of the travel environment information sent from the travel environment acquisition unit 32 during the time T3 to T4. Each time, the most frequent data is extracted as a representative parameter.

  For example, in the driving environment “type”, it is detected that the number of data indicating “normal” is the largest, and in the driving environment “gradient”, it is detected that the number of data indicating “down” is the largest. By extracting representative parameters for other driving environments in this way, for example, as the driving environment information (representative parameter combinations) between times T3 and T4, “type: normal”, “gradient: downhill”, Various information of “curve: present”, “intersection: none”, “congestion: congestion”, and “link ID: L1” is extracted.

  Then, the driving environment estimation unit 34 associates the driving environment information extracted as described above with the operation amount information in each driving state input from the operation information acquisition unit 30 as driving operation history information. It memorize | stores in driving | operation history DB36.

  FIG. 4 shows an example of driving operation history information stored in the driving operation history DB 36. For example, during the time T3 to T4, the various traveling environment information described above and the operation amount information (acceleration deviation, average vehicle speed) corresponding to the traveling state (“steady state”) are stored in association with each other. Thereby, the traveling environment information and the operation amount information in each traveling state can be stored in association with each other.

  The message generation unit 14 includes a target operation selection unit 40, a diagnostic model DB 42, an environmental factor estimation unit 44, a message extraction unit 46, and a message DB 48, and the input unit 22 and the message output unit 24 are connected to each other.

  The input unit 22 is, for example, an operation button or a touch panel, and is provided for inputting a command for generating message information related to a driving operation. When a message generation instruction is given by the driver of the vehicle, the message generation unit 14 reads out the driving operation history information stored in the driving operation history DB 36, and displays the type of driving operation to which advice should be provided and information on the driving environment. Based on this information, a message related to the driving operation is generated.

  The target operation selection unit 40 selects a driving operation to be a target of the driving message based on the driving operation history information stored in the driving operation history DB 36. First, the target operation selecting unit 40 uses the driving operation history information stored in the driving operation history DB 36 to share data ("type", "gradient", "intersection", "congestion", and "curve" with the same driving environment). A certain data) is read out, and a histogram indicating the probability distribution of the driving operation amount is generated for the combination of the driving environments.

  FIG. 5 shows an example of a histogram of driving operation amounts generated by the target operation selecting unit 40. For example, the target operation selection unit 40 performs a combination of “type: high speed”, “gradient: uphill” (the driving environment information of “intersection”, “traffic jam”, and “curve” is omitted for simplification of description). All data of average acceleration (when the running state is “acceleration”) is extracted, and a probability distribution is generated. Similarly, for the same driving environment combination, integrated accelerator opening, IG on time (in “stop” state), acceleration deviation, average vehicle speed (in “steady” state), accelerator off time (“deceleration”) For the case), the probability distribution is generated. In FIG. 5, the probability distribution with respect to the driving operation amount other than “average acceleration” is omitted for simplification of the drawing.

  Then, the target operation selection unit 40 detects the value of the driving operation amount having the maximum probability value in each traveling environment information, and refers to the diagnosis model DB 42 for the evaluation value corresponding to the driving operation amount. Extract. Then, the target operation selection unit 40 extracts a specific traveling environment corresponding to the driving operation amount having the lowest evaluation value.

  FIG. 6 is an explanatory diagram showing a procedure for extracting an evaluation value using the average acceleration as an example in the target operation selection unit 40. FIG. 6A shows “type: high speed”, “gradient: uphill” (“intersection”). The driving environment information of “traffic jam” and “curve” is a probability distribution of the average acceleration in the driving environment of FIG. 6B. An example of an operation diagnosis model is shown.

  In the diagnosis model DB 42, evaluation value data for a certain driving operation amount (average acceleration in FIG. 6) is provided for each combination of traveling environment information. For example, for the combination of “type: high speed”, “gradient: flat” (the driving environment information of “intersection”, “congestion”, “curve” is omitted for simplification of explanation), the average as the driving operation amount For example, the acceleration is determined to be 100 points when “0.8”, 20 points when “1.5”, and 0 points when “2.0”.

In the example of FIG. 6, in the environmental information of “type: high speed” and “gradient: uphill”, the average acceleration with the maximum probability is 2.0 m / s ^2. “0” is extracted as the evaluation value corresponding to the average acceleration “2.0” with reference to the column of the operation amount evaluation values corresponding to the combinations of the two.

  Similarly, the target operation selection unit 40 extracts operation amount evaluation values in other driving environments and driving operation amounts by referring to the diagnosis model DB 42, and the driving environment evaluation value having the lowest operation amount evaluation value and A combination of driving conditions is extracted. In the example of FIG. 6, it is detected that the evaluation value takes the lowest value in the combination of “type: high speed”, “gradient: uphill” (other travel environment information is omitted) and “travel state: acceleration”. Information on the detected combination of driving environments and driving operation amount (average acceleration: 2.0) is output to the environmental factor estimating unit 44. The information on the driving operation amount is output to the environmental factor estimation unit 44 together with information indicating the magnitude (under / over) of the ideal value (value corresponding to the evaluation value 100) stored in the diagnosis model DB 42.

  The environment factor estimating unit 44 generates a probability distribution for the driving operation amount input from the target operation selecting unit 40 for each driving environment constituting the combination of the driving environments input from the target operation selecting unit 40, and The driving environment information with the highest probability indicating the driving operation amount is specified as the driving environment (driving environment factor) for which the driving message should be provided.

  FIG. 7 shows the probability distribution of the average acceleration corresponding to each driving environment, generated by the environmental factor estimating unit 44. For example, information on the driving environment of “uphill”, “high speed”, “with curve”, “no intersection”, and “crowded” and information on the driving operation amount of “average acceleration: 2.0” are input to the environmental factor estimating unit 44. Is done. Then, the environmental factor estimation unit 44 extracts from the driving operation history DB 36 the traveling history information including information on the traveling environment of “uphill”, “high speed”, “with curve”, “no intersection”, and “crowded” and average acceleration. Then, a probability distribution of average acceleration for each driving environment is generated.

  Based on the generated probability distribution, the environmental factor estimation unit 44 identifies the driving environment having the highest probability of occurrence of “average acceleration: 2.0” as the driving environment (driving environment factor) for which advice is to be provided. In the example of FIG. 7, “up” is extracted as the travel environment information with a high probability that “average acceleration: 2.0” will occur. That is, it is detected that the tendency of the driver to accelerate rapidly is the most remarkable in the traveling environment of uphill. The environmental factor estimation unit 44 outputs the detected driving environment factor and information on the amount of driving operation (including information on under and over) to the message extraction unit 46.

  The message extraction unit 46 receives information on the driving environment factor and the driving operation amount from the environment factor estimation unit 44, extracts corresponding message information from the message DB 48, and outputs the message information to the message output unit 48.

  As shown in FIG. 8, the message DB 48 stores the content of the message to be output for each driving operation amount and driving environment factor, and the message extraction unit 46 stores information on the driving environment factor and the driving operation amount. Desired message information is extracted as a key. For example, when “uphill” is input as the driving environment factor and “acceleration: excessive” is input as the driving operation amount, the message extraction unit 46 reads from the message DB 48 “Let's refrain from overtaking on the uphill”. Message information is extracted.

  The message output unit 24 is, for example, a liquid crystal display or an organic EL display installed near the driver's seat, and a navigation display can be applied. The message output unit 24 outputs and displays the driving operation message extracted by the message extraction unit 46. Further, a speaker installed in the vehicle can be applied as the message output unit 24. In this case, the driving operation message extracted by the message extraction unit 46 is output as a voice.

  Hereinafter, the operation of the driving operation support apparatus having the above configuration will be described. For example, the driving operation support device 10 starts to operate when a power supply (not shown) is turned on, and the operation history generation unit 12 continuously generates driving operation history information. In other words, in the operation information acquisition unit 30, operation amount information such as vehicle speed, acceleration, and accelerator opening is input from the vehicle information detection unit 18. At the same time, the travel environment acquisition unit 32 detects the travel environment information of the vehicle based on various information input from the communication unit 16, the vehicle information detection unit 18, and the navigation device 20 (S11).

  Next, the operation information acquisition unit 30 changes the vehicle running state (“stop”, “acceleration”, “steady”, “deceleration”) based on information such as vehicle speed and acceleration input from the vehicle information detection unit 18. Is detected (S12). Then, when the traveling state of the vehicle has not changed ("N" in step S12), the process returns to step S11 again to acquire traveling environment information and operation amount information.

  On the other hand, when the traveling state of the vehicle changes (“Y” in step S12), the operation information acquisition unit 30 obtains the operation amount information in the traveling state before the change (for example, information on average acceleration in the case of “acceleration”). Calculated and output to the traveling environment estimation unit 34 together with information indicating the traveling state. Then, the travel environment estimation unit 34 extracts the most frequently used parameters (gradient, type, etc.) constituting the travel environment information as representative parameters (S13). Furthermore, the driving environment estimation unit 34 associates the extracted representative parameter with the operation amount information and the driving state information input from the operation information acquisition unit 30, and stores them in the driving operation history DB 36 (S14). Thereby, the driving operation history in the vehicle is stored in the driving operation history DB 36.

  The target operation selecting unit 40 of the message generating unit 14 detects whether or not a command for instructing the driving message is input via the input unit 22 (S15). And when the command which instruct | indicates a driving message preparation is not input, it returns to step S11 again and acquires driving environment information and operation amount information.

  When it is detected that a command for instructing driving message input is input (“Y” in step S15), the target operation selecting unit 40 generates probability distribution information of driving operation amount for each combination of driving environment information. Then, referring to the diagnosis model DB 42, an evaluation value for the value of the driving operation amount having the highest occurrence probability is extracted (S16). Then, the target operation selection unit 40 extracts information on the combination of the driving environment with the lowest evaluation value and the corresponding driving operation amount (S17). Thereby, it is possible to specify the type of driving operation to be considered in the improvement of the driving operation and the combination of the driving environment.

  Next, the environmental factor estimating unit 44 calculates a probability distribution for the driving operation type specified in the target operation selecting unit 40 for each operating environment information constituting the combination of the driving environment information specified in the target operation selecting unit 40. Generate. And the environmental factor estimation part 44 extracts the driving | running environment with the highest probability that the driving | operation amount corresponding to the said driving | operation type expresses, and specifies this as driving | running | working environment factor (S18).

  Then, the message extraction unit 46 extracts the message to be output with reference to the message DB 48 based on the information on the driving environment factor input from the environment factor estimation unit 44 and the information on the driving operation type to be improved. This is output to the message output unit 24 (S19). The message output unit 24 displays or outputs the extracted operation message. Accordingly, it is possible to notify the driver of information on the driving environment to be improved and information on the driving environment in which the driving operation should be taken care of.

  In the above embodiment, the driving message is generated according to the command via the input unit 22, but the present invention is not limited to this. For example, at the timing when the ignition is turned on, the driving message is generated. May be performed. Thereby, the driver can be notified of a driving message based on the driving operation history during the previous driving.

  Moreover, in the said embodiment, although the driving | running | working message is produced | generated based on the operation amount information with the lowest evaluation value, this invention is not limited to this, Based on the operation amount information with the highest evaluation value, A driving message that praises the driving operation may be generated. Thereby, while being able to confirm the driving operation which is especially excellent, by outputting the driving message which praises the driving operation, further improvement of the driving operation can be promoted.

(Second Embodiment)
FIG. 10 is a block diagram showing a configuration of the driving operation support apparatus according to the second embodiment of the present invention. In the driving operation support device according to this embodiment, the route information on which the vehicle is scheduled to travel and the traveling environment corresponding to the route are extracted, and a driving message on the route scheduled to travel is output. In addition, about the same component as demonstrated in said 1st Embodiment, the same number is attached | subjected and detailed description is abbreviate | omitted.

  In FIG. 10, the driving operation support device 50 further includes a travel route prediction unit 51 and a travel environment prediction unit 52. The travel route prediction unit 51 is connected to the navigation device 20 and extracts a travel route to the destination based on the destination information and current location information selected by the driver. This travel route information can be configured, for example, as a combination of a link ID for identifying a road in a certain section and a travel direction. Further, the travel environment prediction unit 52 acquires a combination of travel environment information corresponding to the extracted travel route based on the travel route information from the travel route prediction unit 51 and the road information from the navigation device 20. Is output to the target operation selection unit 56 of the message generation unit 54.

  The target operation selection unit 56 reads out the information of the driving operation amount from the driving operation history DB 36 only for the combination of the driving environment information input from the driving environment prediction unit 52, and evaluates the evaluation value in the same manner as in the first embodiment. calculate. Then, the target operation selection unit 56 detects the combination of the travel environment information having the lowest evaluation value, the corresponding link ID, and the operation amount information. The various detected information is input to the environmental factor estimating unit 44, and in the same manner as in the first embodiment, specific driving environment information is selected from the combination of the driving environment information having the lowest evaluation value. Estimate as Then, the advice extraction unit 46 extracts a driving message based on information on the driving environment factor (for example, “up”) and the operation amount (for example, “average acceleration”). Then, in the advice output unit, for example, a driving message such as “Because the selected route has an uphill, be careful not to overtake” is output.

  Further, when the display of the navigation device 20 is used as the message output unit 24, the message output unit 24 maps a certain range of map data including a section corresponding to the link ID determined to have the lowest evaluation value. The data may be read from the DB 20b and displayed on the display.

  FIG. 11 shows an example of a display form of a map image and a driving message on the message output unit 24 as a display. In addition to the road map and facility information (not shown), the map image 70 is generated by the icon 72 indicating the current position of the vehicle, the travel route 74 selected by the navigation device 20, and the message generator 54. An operation message 76 is displayed. The driving message 76 is displayed in an area corresponding to a road (link) including the same driving environment as the driving environment factor (for example, “up”) in the driving route 74. As a result, the traveling section where the driving operation should be noted can be reliably transmitted to the driver.

  In the driving operation support device according to the second embodiment, when the ignition is turned on in addition to the external operation via the input unit 24 as a trigger for starting the operation of the message generation unit 54, a certain number of nodes A driving message may be generated each time the vehicle travels on a road corresponding to, or every time a certain distance (for example, 500 m) is traveled.

  In the driving operation support device according to the second embodiment, the driving message related to the route planned to travel is generated. However, the present invention is not limited to this. For example, the driving operation has been performed in the past (for example, most recently You may make it produce | generate the driving | operation message regarding the path | route which drive | worked.

(Third embodiment)
FIG. 12 is a block diagram showing the configuration of the driving operation support apparatus according to the third embodiment of the present invention. In this driving operation support device, a driving route including a lot of driving environments in which driving operation should be noted and a driving route having less driving environments to be noted are extracted from a plurality of driving routes. In addition, about the same component as demonstrated in said 1st Embodiment, the same number is attached | subjected and detailed description is abbreviate | omitted.

  In FIG. 12, the driving operation support device 60 further includes a travel route prediction unit 61 and a travel environment prediction unit 62. The travel route prediction unit 61 is connected to the navigation device 20 and extracts information on a plurality of travel routes to the destination (combination of link ID and direction information) based on the destination information and current location information selected by the driver. To do. Further, the travel environment prediction unit 62 acquires road information from the navigation device 20 for each travel route extracted by the travel route prediction unit 61 and extracts travel environment information. The travel route information and the travel environment information are output to a route pattern candidate selection unit 66 provided in the message generation unit 64.

  The route pattern candidate selection unit 66 generates a probability distribution for the travel route and travel environment information input from the travel environment prediction unit 62 with reference to the driving operation history DB 36, and calculates an evaluation value for each link. Then, the route pattern candidate selection unit 66 calculates an evaluation value (total evaluation value) for a certain travel route candidate by adding the evaluation values for all the links constituting the travel route. Further, the route pattern candidate selection unit 66 includes information on the link ID corresponding to the travel route having the highest overall evaluation value among the plurality of travel routes, and the travel environment and the operation amount for the link having the lowest evaluation value on the travel route. Extract information.

  Then, the environmental factor estimating unit 44 estimates the driving environment (driving environment factor) to be considered for driving improvement for the extracted driving route in the same manner as in the first embodiment. The information on the operation amount is sent to the message extraction unit 46. The message extraction unit 46 extracts driving message information based on the driving environment factor and the operation amount information, and outputs the driving message information to the message output unit 24. The message output unit 24 outputs and displays route information based on the link ID corresponding to the extracted travel route, and also outputs and displays the extracted driving message. Accordingly, it is possible to present a driving route with few environmental factors that the driver should consider.

  In the above embodiment, the driving route having the lowest comprehensive evaluation value is presented by extracting the driving route having the highest comprehensive evaluation value, but on the contrary, the driving route having the lowest comprehensive evaluation value is presented. It may be extracted. As a result, a travel route that includes many travel environment factors to be taken into consideration by the driver is presented, so that the driver can be encouraged to improve the driving operation.

  In each of the above embodiments, the driving operation support device is described as being mounted on a vehicle. However, the present invention is not limited to this, for example, the driving operation support device of the present invention is connected to an external server. And information such as a driving message may be transmitted / received to / from a vehicle connected via wireless communication means.

  As described above, according to the present invention, it is possible to present to the driver the driving environment and driving operation information that should be noted, for example, operation management for performing operation management of a vehicle-mounted navigation device, a truck, a taxi, etc. It is useful as a driving operation support device used together with the device.

10, 50, 60 Driving operation support device 12 Operation history generation unit 14, 54, 64 Message generation unit 16 Communication unit 18 Vehicle information detection unit 20 Navigation device 22 Input unit 24 Message output unit 30 Operation information acquisition unit 32 Traveling environment acquisition unit 34 Driving environment estimation unit 36 Driving operation history DB
40, 56 Target operation selection unit 42 Diagnostic model DB
44 Environmental Factor Estimator 46 Message Extractor 48 Message DB
66 Route Pattern Candidate Selection Unit

Claims (10)

A driving operation history generation unit that acquires driving operation information indicating a driving operation amount of a vehicle and driving environment information indicating a driving environment on the driving route of the vehicle, and stores the driving operation information and the driving environment information in association with each other. When,
A target operation selection unit that calculates an evaluation value of the driving operation amount based on the traveling environment information and extracts target operation information indicating a type of the driving operation amount that should be a target of driving evaluation based on the evaluation value. When,
An environmental factor estimation unit that extracts environmental factor information to be a target of driving evaluation from the driving environment information corresponding to the target operation information;
A driving operation support apparatus comprising: a message extracting unit that extracts a driving message based on the target operation information and the environmental factor information. The target operation selection unit extracts the traveling environment information to be a target of driving evaluation together with the target operation information based on the evaluation value,
The environmental factor estimation unit extracts the environmental factor information for each driving environment constituting the driving environment information based on a probability distribution in which a driving operation amount indicated by the target operation information occurs. The driving operation support apparatus according to claim 1.   The target operation selection unit generates a probability distribution in which the driving operation amount indicated by the driving operation information is generated for the driving environment based on the driving environment information, and calculates the evaluation value for the driving operation amount having the highest occurrence probability. The driving operation support device according to claim 1, wherein The driving operation history generation unit
An operation information acquisition unit that acquires the driving operation information and classifies the traveling state of the vehicle based on the driving operation information;
A driving environment estimation unit that estimates a driving environment in the driving state by extracting a representative value of the driving environment information for each classified driving state;
The driving operation support apparatus according to claim 1, further comprising a storage unit that stores the representative value of the driving environment information and the driving operation information in association with each other.   The driving operation support apparatus according to claim 4, wherein the operation information acquisition unit classifies the vehicle as another running state when the running state of the vehicle does not change for a certain period of time. A travel environment prediction unit that acquires the travel environment information in the planned travel route of the vehicle;
The target operation selection unit calculates an evaluation value of the driving operation amount and extracts the target operation information for the travel environment information included in the planned travel route. Driving support device. A travel route prediction unit that acquires travel route information indicating a plurality of planned travel routes;
A travel environment prediction unit that acquires the travel environment information corresponding to each of the planned travel routes;
A route pattern candidate selection unit that calculates an evaluation value of the driving operation for each of the planned travel routes and that selects a planned travel route based on the evaluation value of the planned travel route is provided. The driving operation support device according to Item 1. A map information storage unit storing map information indicating the travel route;
The driving operation support apparatus according to claim 6, further comprising an output unit that outputs and displays a map image including the travel route and the driving message. A driving operation history generation unit that acquires driving operation information indicating a driving operation amount of a vehicle and driving environment information indicating a driving environment on the driving route of the vehicle, and stores the driving operation information and the driving environment information in association with each other. When,
Target operation selection for calculating an evaluation value of the driving operation amount for each combination of the driving environment information and extracting target operation information indicating a type of the driving operation amount to be subjected to driving evaluation based on the evaluation value And
An environmental factor estimation unit that extracts environmental factor information to be a target of driving evaluation from the combination of the driving environment information corresponding to the target operation information;
A driving operation support apparatus comprising: a message extracting unit that extracts a driving message based on the target operation information and the environmental factor information. Driving operation history generation step for acquiring driving operation information indicating a driving operation amount of the vehicle and traveling environment information indicating a driving environment on the driving route of the vehicle, and storing the driving operation information and the driving environment information in association with each other When,
Target operation selection step of calculating an evaluation value of the driving operation amount based on the traveling environment information and extracting target operation information indicating a type of the driving operation amount to be subjected to driving evaluation based on the evaluation value When,
An environmental factor estimating step for extracting environmental factor information to be a target of driving evaluation from the driving environment information corresponding to the target operation information;
A driving operation support method comprising a message extraction step of extracting a driving message based on the target operation information and the environmental factor information.

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