JP2013045250A - Driving support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving support device that enables performing of a driving support suitable for each driver.SOLUTION: A driving support device 1, which performs a driving support for a vehicle having a motor as a driving source, includes: collection means 20, 21 for collecting variation information on the amount of power for each traveling route from an arbitrary vehicle; and driving characteristic estimation means 23 for performing the classification into a plurality of driving characteristics on the basis of the variation information on the amount of power collected for an arbitrary traveling route on which a vehicle of a driving support object travels, and estimating a driving characteristic of the vehicle of a driving support object from among the classified plurality of driving characteristics. A driving support is performed for the vehicle of a driving support object on the basis of the estimated driving characteristic (e.g., provision of information on a reachable point on a traveling route, provision of information on energy saving traveling on a traveling route).

Description

  The present invention relates to a driving support apparatus that supports driving with respect to a vehicle having a motor as a drive source.

  An electric vehicle supplies electric power from a battery to a motor and travels with a driving force of the motor. Therefore, in the case of an electric vehicle, the vehicle cannot be driven unless it is charged before the amount of power of the battery becomes insufficient. Therefore, some driving support devices provide information for reducing power consumption, provide travelable distance information based on remaining power, and the like. In Patent Document 1, probe information including power regeneration amount data in each link is received, and a cost variable value related to the power regeneration amount of each link is obtained based on the probe information and stored in a map data storage unit. The route cost is calculated based on the cost variable value assigned to each link constituting the candidate route for each candidate route from the current position to the destination, and the route with the smallest route cost is selected from the plurality of candidate routes. It is disclosed to provide.

JP 2010-101745 A JP 2011-59921 A JP 2006-300780 A JP 2009-257966 A

  In the invention described in Patent Document 1, a route with good fuel efficiency is provided in consideration of a vehicle-side characteristic called an electric regeneration amount. However, the power consumption in an electric vehicle is greatly influenced by the individual driving characteristics such as the accelerator opening. Therefore, the provided route with good fuel efficiency may not be a route with good fuel efficiency depending on the driver.

  Then, this invention makes it a subject to provide the driving assistance apparatus which performs the driving assistance suitable for each driver | operator.

  A driving support apparatus according to the present invention is a driving support apparatus that supports driving with respect to a vehicle having a motor as a drive source, and includes a collection unit that collects change information of electric energy for each travel route from an arbitrary vehicle, An arbitrary travel route on which the driving support target vehicle travels is classified into a plurality of driving characteristics based on the change information of the electric energy collected by the collecting means, and the driving support target vehicle is classified from the classified driving characteristics. Driving characteristic estimation means for estimating driving characteristics, and driving assistance of a vehicle to be driven based on the driving characteristics estimated by the driving characteristic estimation means.

  In this driving support device, change information of electric energy for each travel route is collected from a large number of vehicles. The change information of the power amount may be change information of the power amount of the battery itself, or may be change information of the power consumption in the vehicle. When various vehicles (various drivers) travel along a certain driving route, they show various battery power changes (and thus power consumption changes) depending on the driving operation characteristics of the driver. Are similar in how power consumption changes. Therefore, in the driving support device, for any travel route on which the vehicle that is the driving support target travels, based on the collected power amount change information, a change in power consumption is similar to each other, and a plurality of driving characteristics are obtained. Classify into: Then, the driving support device estimates the driving characteristics of the driving support target vehicle from a plurality of driving characteristics classified for the arbitrary travel route. It can be predicted that the vehicle (driver) targeted for driving assistance travels with the same power consumption as the change in the power consumption of the estimated driving characteristics while traveling on the arbitrary travel route. In view of this, the driving support device supports driving of the vehicle to be driven based on the estimated driving characteristics while traveling along the arbitrary travel route. As described above, in the driving support device, the driving characteristics of the driving support target vehicle (driver) are selected from the driving characteristics classified based on the change information of the electric energy collected from various vehicles for an arbitrary driving route. By estimating, driving support can be performed in consideration of the driving characteristics of the vehicle (driver) targeted for driving support, and driving support suitable for each driver can be performed.

  In the driving support device of the present invention, a reachable point on an arbitrary travel route is predicted with the current amount of electric power in the driving support target vehicle based on the driving characteristic estimated by the driving characteristic estimation unit, and the reachable point Are provided on vehicles that are subject to driving assistance. In this way, the driving support device can predict a change in power consumption over the entire arbitrary travel route from the estimated driving characteristics, and therefore, based on the predicted value of the change in power consumption, the driving route can be determined based on the current power amount. It is possible to accurately determine how far the vehicle can travel and to provide the driver with information on reachable points on the travel route. Thereby, the driver can know the reachable point (how far the vehicle can travel) on the travel route.

  In the driving support apparatus according to the present invention, energy saving driving information on an arbitrary travel route is acquired based on the driving characteristics estimated by the driving characteristic estimating means, and the energy saving driving information is provided by the driving support target vehicle. . In this way, since the driving support device can predict a change in power consumption in an arbitrary travel route from the estimated driving characteristics, the energy consumption (electric power) is more than that based on the predicted value of the change in power consumption. It is possible to obtain information for driving to reduce (consumption), and to provide energy saving operation information to the driver. The driver can suppress the energy consumption of the vehicle by driving according to the energy saving driving information. As a result, it is possible to go farther, and the number of times of charging and the charging time can be reduced.

  A driving support apparatus according to the present invention is a driving support apparatus that supports driving with respect to a vehicle having a motor as a drive source, and includes a collection unit that collects change information of electric energy for each travel route from an arbitrary vehicle, Driving characteristic estimation means for estimating the driving characteristics of the driver based on the change information of the electric energy of the driving support target vehicle, and collecting and collecting the driving characteristics of the driver of the driving support target vehicle estimated by the driving characteristic estimation means It is characterized in that driving assistance is provided for a vehicle that is a driving assistance target based on the change information of the electric energy for any travel route collected by the means.

  In this driving support device, change information of electric energy for each travel route is collected from a large number of vehicles. When a vehicle (driver) travels along a certain travel route, a change in the amount of battery power specific to the driver (and thus a change in power consumption) is indicated by the driving operation characteristics of the driver. In view of this, the driving support device estimates the driving characteristics of the driver based on the change information of the electric energy of the vehicle to be driven. When the driving support target vehicle travels along an arbitrary travel route, the driving support device uses the estimated driving characteristics of the driver of the driving support target vehicle to change the amount of power collected for the arbitrary travel route. The driving characteristic is corrected using the driving characteristic, and the driving support target vehicle is driven based on the corrected driving characteristic. As described above, in the driving support device, the change information of the electric energy collected from various vehicles with respect to an arbitrary travel route is used for the driving characteristic of the driver estimated from the change information of the electric energy of the vehicle as the driving support target. By correcting the driving characteristics of the vehicle (driver) subject to driving assistance, the driving characteristics of various vehicles (drivers) are taken into account while considering the individual driving characteristics of the vehicle (driver) subject to driving assistance. Driving assistance can be performed, and driving assistance suitable for each driver can be performed.

  In the driving support device of the present invention, the driving support target is based on the driving characteristics of the driver of the driving target vehicle estimated by the driving characteristic estimation means and the change information of the electric energy for any travel route collected by the collecting means. A reachable point on an arbitrary travel route is predicted with the current amount of electric power in the vehicle of the vehicle, and the reachable point is provided by a vehicle that is a driving assistance target. As described above, in the driving support device, the driving characteristic of the driver estimated from the driving power change information of the target vehicle is added with the changing power information collected from various vehicles for any driving route. Based on the driving characteristics of the driving target vehicle (driver), it is possible to determine with high accuracy how far the vehicle can travel on any driving route based on the current amount of electric power, and the information on the points that the driver can reach on the driving route Can provide. Thereby, the driver can know the reachable point (how far the vehicle can travel) on the travel route.

  In the driving support apparatus according to the present invention, any driving based on the driving characteristics of the driver of the vehicle to be driven supporting estimated by the driving characteristics estimation means and the change information of the electric energy for any driving route collected by the collecting means. Energy-saving driving information on the route is acquired, and the energy-saving driving information is provided by the driving support target vehicle. As described above, in the driving support device, the driving characteristic of the driver estimated from the driving power change information of the target vehicle is added with the changing power information collected from various vehicles for any driving route. Based on the driving characteristics of the driving assistance target vehicle (driver), it is possible to obtain information for driving to reduce energy consumption (electric power consumption) on any travel route, and to save energy for the driver Can provide information. The driver can suppress the energy consumption of the vehicle by driving according to the energy saving driving information. As a result, it is possible to go farther, and the number of times of charging and the charging time can be reduced.

  According to the present invention, estimating driving characteristics of a vehicle (driver) targeted for driving support from driving characteristics classified based on change information of electric energy collected from various vehicles for an arbitrary travel route. Thus, driving support can be performed in consideration of the driving characteristics of each vehicle (driver) targeted for driving support, and driving support suitable for each driver can be performed.

It is a lineblock diagram of the driving support system concerning a 1st embodiment. It is a block diagram of the driving assistance system which concerns on 2nd Embodiment.

  Embodiments of a driving assistance apparatus according to the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected about the element which is the same or it corresponds in each figure, and the overlapping description is abbreviate | omitted.

  In the present embodiment, the driving support device according to the present invention is applied to a driving support system including a vehicle (particularly a navigation device) and a center. In the driving support system according to the present embodiment, the vehicle and the center can communicate wirelessly. The vehicle according to the present embodiment is an electric vehicle, and includes a battery that can be charged from the outside and a motor as a drive source, and supplies electric power from the battery to the motor and travels with the driving force of the motor. In addition, the vehicle according to the present embodiment functions as a probe car and provides probe information to the center. The center according to the present embodiment collects probe information from each vehicle and provides various service information to each vehicle based on the probe information. In particular, in the present embodiment, the first embodiment is a form that provides the travelable range information with the current remaining power amount, and the second embodiment is a form that provides driving advice information.

  With reference to FIG. 1, the driving assistance system 1 which concerns on 1st Embodiment is demonstrated. FIG. 1 is a configuration diagram of a driving support system according to the first embodiment.

  The driving support system 1 includes a navigation device 3 for each vehicle capable of wireless communication between the center 4 and the center 4, and transmits and receives information between the center 4 and each vehicle. In particular, the driving support system 1 collects and accumulates at least the probe information including the change information of the electric energy from each vehicle at the center 4, and uses the probe information at the center 4 to drive the driving tendency due to the change of the electric power consumption (driving characteristics). ) Is estimated, the driving tendency of the vehicle (driver) that is the target of driving assistance is estimated, and a driving range based on the change in power consumption due to the driving tendency is provided to the driver.

  The navigation device 3 transmits probe information to the center 4 in addition to normal functions such as a current position detection function, a map display function, a destination setting function, a route search function, and a route guidance function, and a service transmitted from the center 4 It has a function to provide information to the driver. In the first embodiment, the navigation apparatus 3 will be described in detail with respect to functions performed with the center 4.

  In the navigation apparatus 3, when a destination is input by the driver and a route (route) to the destination is generated, probe information is transmitted to the center 4 during route travel. In addition, when the navigation apparatus 3 receives the travelable range information from the center 4, the navigation apparatus 3 displays the travelable range information. Therefore, the navigation device 3 includes a communication terminal 10, a destination input unit 11, a current position detection unit 12, a route generation unit 13, a power amount detection unit 14, a power amount transmission unit 15, a travelable range reception unit 16, and a display unit. 17 is provided.

  The communication terminal 10 is a communication terminal for performing wireless communication with the center 4. Information transmitted by the communication terminal 10 includes probe information. The probe information includes a vehicle identification number, a destination input by the destination input unit 11, information on a route (route) generated by the route generation unit 13, and the like. Information received by the communication terminal 10 includes travelable range information.

  The destination input unit 11 accepts an input operation by the driver and sets a destination according to the input operation. The current position detection unit 12 detects the current position and traveling direction of the vehicle at regular time intervals. When the destination is set by the destination input unit 11, the route generation unit 13 calculates a route from the current position detected by the current position detection unit 12 to the destination. The functions of the destination input unit 11, the current position detection unit 12, and the route generation unit 13 are the same as the functions in the conventional navigation device.

  The power amount detection unit 14 is a sensor (in particular, an SOC sensor) that detects the current power amount (remaining charge amount) of the battery. In the present embodiment, SOC [State Of Charge] (ratio (%) of remaining power amount to maximum battery power amount) is used as the power amount. When the current power amount is detected at regular time intervals, the power amount detection unit 14 outputs the detected power amount to the power amount transmission unit 15.

  In the electric energy transmission unit 15, while traveling on the route generated by the route generation unit 13, based on the current position detected at regular intervals by the current position detection unit 12, from the start to the end of the traveling link. Determine the interval. And in the electric energy transmission part 15, using the electric energy detected for every fixed time by the electric energy detection part 14, the probe information containing the change information of the electric energy of a link unit is produced | generated, and the probe information is transmitted to a communication terminal. 10 to the center 4. This probe information includes link travel time information, accelerator opening information, speed information, ON / OFF information of various devices that consume power such as air conditioners and lights, routes, etc. It may include event information that affects driving such as traffic jams and accidents. Link direction information (travel direction information) is also added to the link information. Note that, instead of the information on the change in power amount in units of links, the information on the power consumption in units of links that can be derived from the change in power amount may be used as the probe information.

  The travelable range receiving unit 16 receives the travelable range information via the communication terminal 10 and outputs the travelable range information to the display unit 17.

  The display unit 17 is a display of the navigation device 3. When the travelable range information is input from the travelable range receiving unit 16, the display unit 17 displays the travelable range. For example, the route displayed on the map is color-coded by the range that can be traveled and the range that cannot be traveled, and the reachable point is highlighted on the map. Reachable interchanges, service areas, parking areas, etc. are highlighted.

  The center 4 is a center that provides various services to the vehicle. For example, the center 4 is operated by an automobile company. In particular, the center 4 analyzes a driving tendency (driving characteristics) based on a change in the power consumption of the vehicle (driver) and provides travelable range information according to the analyzed driving tendency. In the first embodiment, the function of analyzing the driving tendency and providing the travelable range information for the center 4 will be described in detail.

  The center 4 collects probe information from each vehicle and accumulates the probe information. Then, the center 4 uses the probe information accumulated for the route on which the driving target vehicle is traveling to classify into a plurality of driving tendency groups based on the change in power consumption on the route, and the classification is performed. A driving characteristic of a vehicle that is a driving assistance target is estimated from a plurality of driving characteristics, a driving range is calculated from the estimated power consumption of the group, and the driving range information is transmitted to the driving support target vehicle.

  For this purpose, the center 4 includes a communication terminal 20, a power probe receiving unit 21, a probe information storage unit 22, a driving tendency analysis unit 23, and a travelable range transmission unit 24. In the present embodiment, the communication terminal 20 and the power probe receiving unit 21 correspond to the collecting means described in the claims, and the driving tendency analyzing unit 23 corresponds to the driving characteristic estimating means described in the claims. To do.

  The communication terminal 20 is a communication terminal for performing wireless communication with each vehicle. Information transmitted by the communication terminal 20 includes travelable range information and the like. Information received by the communication terminal 20 includes probe information of each vehicle.

  The power probe receiving unit 21 receives probe information from the vehicle via the communication terminal 20 and stores the probe information in the probe information storage unit 22.

  The probe information storage unit 22 is a storage area secured in the storage device of the center 4. The information stored in the probe information storage unit 22 is probe information collected from each vehicle. For each route traveled by each vehicle, information on change in power amount at least for each link (even in the case of power consumption change information). Is accumulated).

  When the probe information is transmitted from the driving support target vehicle, the driving tendency analysis unit 23 refers to the probe information stored in the probe information storage unit 22 for the route on which the vehicle is traveling, and supports driving on the route. Analyze the driving tendency of the target vehicle.

  Specifically, in the driving tendency analysis unit 23, the same route (including all routes, part of the route) as the route traveled by the driving support target vehicle from the information stored in the probe information storage unit 22. And the traveling result (probe information) in the same link direction (the traveling direction is the same) is extracted. Then, the driving tendency analysis unit 23 divides the route into a plurality of sections, and uses change information of the power consumption in each section for all the extracted traveling results. The section to be divided is basically a section in link units, and may be a section in which a plurality of links such as slope change points are connected. When the probe information is link-unit power amount change information, the link-unit power consumption change is calculated from the link-unit power amount change. Then, the driving tendency analysis unit 23 compares the changes in the power consumption of each section on the route for all the extracted travel results (probe information), and the difference in the power consumption of each section in the entire route is small. The traveling results are classified as a group having similar driving tendency (driving characteristics). As a result, among the travel results when various vehicles (drivers) travel on the same route in the same direction, the travel results with similar changes in the amount of power change throughout the route become the same group, and multiple groups are categorized. This grouping method applies a conventional method, for example, a conventional clustering method.

  Further, the driving tendency analysis unit 23 classifies the group using the change information (change information of power consumption) of the link unit that has already traveled on the route on which the driving support target vehicle (driver) is traveling. For each group, the change in power consumption in each section on the route of the group is compared with the change in power consumption in each section that has already traveled on the route of the driving support target vehicle. Select the group with the closest change in consumption. Here, every time the current position on the route of the driving support target vehicle advances and the amount of change in the amount of power for each link that has already traveled increases, the closest group is selected. There may be a transition to a group.

  In addition, in the driving tendency analysis part 23, when event information, such as traffic congestion and an accident, is also accumulate | stored as probe information, when analyzing, event information may be provided as noise and it may analyze. In the case of a driving result that includes such event information, the power consumption by the motor decreases due to speed reduction due to traffic jams or accidents, but the power consumption by the air conditioner increases, so there is no event and how the power consumption changes Is different and is classified into another group or discarded as an isolated driving result. Further, in the case where information such as the accelerator opening degree and the vehicle speed is also accumulated as the probe information, the driving tendency analysis unit 23 may perform analysis in consideration of such information. Further, in the case where ON / OFF information of various devices that consume power such as an air conditioner is also accumulated as probe information, the driving tendency analysis unit 23 may perform analysis in consideration of these information. Further, in the case where link travel time information is also accumulated as probe information, the driving tendency analysis unit 23 may perform analysis in consideration of travel time information.

  The travelable range transmission unit 24 calculates the travelable range using the driving tendency group of the driving support target vehicle (driver) analyzed by the driving tendency analysis unit 23, and transmits information on the travelable range to the communication terminal 20. Via the corresponding vehicle.

  Specifically, the travelable range transmission unit 24 uses the change in power consumption of the group selected by the driving tendency analysis unit 23 to use the power ahead of the current position on the route on which the driving support target vehicle is traveling. A travel plan consisting of a change in consumption is made, and points (link units) that can be traveled (reachable) on the traveling route with the current battery power amount are calculated based on the travel plan. Here, a point where a predetermined amount (for example, 10%, 20%) remains in the battery power amount is calculated instead of a point where the battery power amount (SOC) becomes 0%. In particular, if a route is set on a road that cannot be removed in the middle of the route other than a specific point (interchange, service area, parking area) such as an expressway or a toll road, the specific point is reached Judgment is made based on whether or not it is possible. In the calculation and determination of the reachable point, road characteristics such as an expressway (toll road) / general road and a road gradient may be taken into consideration. Incidentally, the higher the speed of travel, the greater the power consumption due to wind resistance, and the shorter the travelable distance. In addition, the higher the slope, the greater the power consumption and the shorter the travelable distance.

  With reference to FIG. 1, the operation | movement in the driving assistance system 1 is demonstrated. The navigation device 3 of each vehicle detects the current position at regular time intervals. Moreover, in the navigation apparatus 3, if the destination is received according to the input operation by the driver, a route (route) from the current position to the destination is generated. Moreover, in the navigation apparatus 3, the electric energy of a battery is detected for every fixed time.

  When the route travel is started, the navigation device 3 of each vehicle generates probe information including power amount change information for each link periodically (for example, every fixed time, every fixed distance, and every link travel). The probe information is transmitted to the center 4. The center 4 accumulates probe information every time it receives probe information from each vehicle.

  Each time probe information is received from a driving support target vehicle traveling on a certain route (may be for each link driving), the center 4 uses the same route as the route on which the driving support target vehicle travels among the accumulated information. Refer to all the driving results for, group the driving results with similar changes in power consumption, and the power consumption from the divided group to the current position on the route of the driving support target vehicle Select the group closest to the change in. Further, the center 4 uses the change in the power consumption of the selected group to make a travel plan ahead from the current position on the route on which the driving support target vehicle is traveling, and based on the travel plan, the current battery The point where the vehicle can travel on the route is determined based on the remaining power amount. Then, the center 4 transmits information on the points where the vehicle can travel (travelable range information) to the driving support target vehicle.

  The navigation device 3 for the driving support target vehicle receives the information on the travelable point and displays the information on the travelable point. By viewing this information, the driver can know at a glance how far he can go with the current amount of power. Then, the driver finds a charging spot and performs charging before reaching this point.

  In the center 4 and the navigation device 3 for the driving support target vehicle, the above processing is repeated until the destination of the route is reached. By this repeated processing, a group analyzed as a driving tendency of a vehicle (driver) targeted for driving assistance may change to a different group on the way. As a result, the travelable point may also change.

  According to the driving support system 1, the driving support target vehicle (driver) is selected from the driving trends classified based on the change information of the electric energy collected from a large number of vehicles (drivers) for an arbitrary route. By estimating the driving tendency, driving support can be performed in consideration of the driving tendency (driving characteristics) of the vehicle (driver) to be driven, and driving support suitable for each driver can be performed. In particular, according to the driving support system 1, the driving distance can be dynamically determined by providing the driving range information (reachable point information) on the route with the current battery power as driving support. Know only one point on the route without making a decision (for example, judging the reachable point from the travelable distance provided by the device in consideration of road gradient, air conditioner ON / OFF, etc.) Can do. Further, according to the driving support system 1, by estimating the driving tendency using the traveling result of another vehicle, it is possible to determine the travelable range information on the route even when the route travels for the first time.

  In addition, according to the driving support system 1, by analyzing the driving tendency based on the change in the power consumption of each link on the route and making a travel plan of the power consumption from the driving tendency, the gradient information, wind, The travelable range on the route can be determined without performing detailed calculations such as weather, temperature, and vehicle characteristics. For example, even if each driver travels on the same route with different driving characteristics with different types of vehicles, if the vehicle characteristics are different, the power consumption changes differently and is classified as a group with different driving tendency Will be. Therefore, even if grouping is performed without considering the vehicle characteristics, the vehicle characteristics are divided into groups having different driving tendencies. In addition, according to the driving support system 1, it is difficult to calculate as a formula by indirectly characterizing the driving method of the driver according to how the power consumption changes and learning the driving tendency of the driver in groups. It is possible to estimate the driving tendency of the driver without accurately calculating the required power consumption, and to accurately determine how far the route can be reached.

  In addition, according to the driving support system 1, the driving tendency of the vehicle (driver) is periodically analyzed until the driving support target vehicle reaches the destination of the route. As the current position advances and the change information of the power consumption amount in units of links increases, a more accurate analysis can be performed, a driving tendency that is more suitable for the vehicle (driver) can be estimated, and a more accurate driving range can be determined. Furthermore, according to the driving support system 1, the driving tendency of the vehicle (driver) is periodically analyzed until the vehicle targeted for driving support reaches the destination of the route. Alternatively, even if the driver's physical condition changes or the driving tendency changes significantly, a driving tendency similar to the changed driving tendency can be estimated, and an accurate travelable range can be determined even after the change.

  Further, according to the driving support system 1, when a route is set on a road that cannot be removed in the middle of the route other than a specific point (interchange, service area, parking area) such as an expressway or a toll road, The driving tendency can be analyzed with higher accuracy than a general road where the route may fluctuate, and a more accurate driving range can be determined.

  With reference to FIG. 2, the driving assistance system 2 which concerns on 2nd Embodiment is demonstrated. FIG. 2 is a configuration diagram of the driving support system according to the second embodiment.

  Compared with the driving support system 1 according to the first embodiment, when the driving support system 2 estimates the driving tendency of the vehicle (driver) targeted for driving support at the center 4, the driving support information based on the driving tendency is obtained. The difference is that it is provided to the driver. In the second embodiment, this point will be described in detail.

  The navigation device 5 differs from the navigation device 3 according to the first embodiment only in displaying the driving advice information when receiving the driving advice information from the center 4. The navigation device 5 includes a communication terminal 10, a destination input unit 11, a current position detection unit 12, a route generation unit 13, a power amount detection unit 14, a power amount transmission unit 15, a driving advice reception unit 18, and a display unit 17. Yes. Note that the communication terminal 10, the destination input unit 11, the current position detection unit 12, the route generation unit 13, the power amount detection unit 14, and the power amount transmission unit 15 are provided in the navigation device 3 according to the first embodiment. The description is omitted because it is similar to the above.

  The driving advice receiving unit 18 receives driving advice information via the communication terminal 10 and outputs the driving advice information to the display unit 17. When the driving advice information is input from the driving advice receiving unit 18, the display unit 17 displays the driving advice information. For example, advice is shown in text, or a graph of changes in power consumption.

  Compared with the center 4 according to the first embodiment, when the driving characteristics of the driving support target vehicle are estimated, the center 6 is more advantageous than the estimated driving tendency (for example, less power consumption). Driving advice, driving advice to become a driving trend that can be reached in a shorter time) and driving advice to maintain the current status according to the estimated driving tendency, etc. Send to the vehicle.

  The center 6 includes a communication terminal 20, a power probe receiving unit 21, a probe information storage unit 22, a driving tendency analysis unit 23, and a driving advice transmission unit 25. Since the communication terminal 20, the power probe receiving unit 21, the probe information storage unit 22, and the driving tendency analysis unit 23 are the same as those provided in the center 4 according to the first embodiment, description thereof is omitted.

  The driving advice transmission unit 25 is a driving advice that is more advantageous than the driving tendency of the driving assistance target vehicle (driver) analyzed by the driving tendency analysis unit 23, and driving that maintains the current state along the driving tendency. Is generated, and information on driving advice is transmitted to the corresponding vehicle via the communication terminal 20.

  Specifically, in the driving advice transmission unit 25, the driving tendency group having the smallest difference among the driving tendency groups more advantageous than the current driving tendency group of the driving support target vehicle (driver) (one-stage advantageous driving). Select Trend Group. Then, the driving advice transmission unit 25 extracts a driving method causing a difference between the current driving tendency group and the selected driving tendency group, and generates driving advice and caution points. For example, accelerator opening to reduce the speed to reduce power consumption and advice of accelerator ON / OFF timing, accelerator opening to increase the speed to shorten travel time and accelerator ON / OFF timing Advice, there are cautions to drive at a constant speed to suppress fluctuations in power consumption.

  A more advantageous driving tendency is that points that can be recharged (service area, parking area, etc.) such as highways are fixed, and when it is difficult to get off the route, it is There is a driving tendency to increase the amount of battery power (to reduce power consumption) or a driving tendency to reach a reachable charging point in a shorter time. When there is a possibility that the distance fluctuates, the driving tendency is such that the user can go farther (the power consumption is reduced).

  In the case of a driving tendency that can be reached in a shorter period of time, for example, when it is determined that charging must be performed at a specific charging point on the route on an expressway, the vehicle travels at a fixed speed of 100 km / h rather than at a fixed speed of 80 km / h. , Shorten the travel time to the charging point. As a result, if the shortened traveling time is longer than the charging time that is extended by increasing the power consumption by increasing the vehicle speed, the trip time for the entire route is shortened, which is advantageous. In addition, the power consumption increases by increasing the vehicle speed, but since the determination of the reachable point is determined with a margin for the remaining power amount, even if the power consumption increases slightly, The determined chargeable point is sufficiently reachable. Incidentally, in the case of driving advice related to time, the travel time information of each link is provided from the vehicle to the center 4, and the driving tendency is analyzed and driving advice is generated in consideration of the travel time information of the link.

  In addition, the driving advice transmission unit 25 graphs the travel plan of the power consumption in the entire route of the current driving tendency group of the vehicle (driver) targeted for driving assistance (the graph is not a line but a certain amount of power consumption). And a graph showing changes in the amount of power consumption from the start of driving to the current driving route on the route, and generating a superposition of these two graphs. Then, the driving advice transmission unit 25 operates according to the driving plan when the line graph of the power consumption of the driving support target vehicle is included in the band graph of the power consumption of the current driving tendency group. Generate status quo advice that indicates what is done. For example, there is advice to maintain the current vehicle speed (accelerator opening). The driving advice transmission unit 25 may transmit the above graph to the vehicle in addition to the driving advice information. By viewing such a graph, the driver can accurately grasp the current power consumption. Note that if the power consumption line graph of the driving support target vehicle does not fall within the current driving trend group's power consumption band chart, it is out of the current driving tendency group, so the driving support target The driving tendency group of the vehicle (driver) is updated from the current driving tendency group to another driving tendency group.

  In addition, in order to analyze driving trends in more detail and make driving advice more accurate, information such as accelerator opening, vehicle speed, ON / OFF information of devices such as air conditioners and lights is provided to the center 4 from the vehicle. In addition, it is desirable to analyze driving tendency and generate driving advice in consideration of such information.

  Incidentally, the following advice may be given as driving advice. Extract champion data from each section on the route. The Champin data includes, for example, data with the least power consumption in the group and data that travels in the shortest time. Then, the champion data of each section is connected to obtain the most ideal data, the driving method is recognized from the data, and driving advice is generated based on the driving method.

  With reference to FIG. 2, the operation | movement in the driving assistance system 2 is demonstrated. In the operation in the driving support system 2, the operation until the driving tendency is analyzed in the center 6 is the same as the operation in the driving support system 1 according to the first embodiment, and the subsequent operation will be described.

  Each time probe information is received from a driving support target vehicle traveling on a certain route (may be for each link driving), the center 6 classifies the driving tendency group of the driving support target vehicle (driver) by analyzing the group. A driving tendency group that is more advantageous than the current driving tendency group is selected from all the driving tendency groups, and driving advice is generated based on the difference between the current driving tendency group and the more advantageous driving tendency group. Then, the center 6 transmits the driving advice information to the driving support target vehicle.

  The navigation device 5 of the vehicle to be driven assists receives the driving advice information and displays the driving advice information. The driver sees this information and performs a driving operation of advice, so that the power consumption can be reduced and the driver can go farther or can reach a reachable charging point in a shorter time. As a result, the number of times of charging and the charging time can be reduced, or the trip time in the entire route can be shortened. In addition, there is a case where it is not a more advantageous driving advice but a driving advice as to whether electric power is consumed as planned.

  In the center 6 and the navigation device 5 for the driving support target vehicle, the above processing is repeated until the destination of the route is reached. By this repeated processing, the group analyzed as the driving tendency of the driving assistance target vehicle (driver) may transit to a different group in the middle. As a result, driving advice may also change.

  According to this driving support system 2, as in the driving support system 1 according to the first embodiment, the driving tendency of the driving support target vehicle (driver) is analyzed and the driving tendency is taken into consideration. Therefore, it has the same effect as the driving support system 1. In particular, according to the driving support system 2, by providing driving advice information as driving support, it is possible to change to a more advantageous driving or to confirm whether power can be consumed as planned. Further, according to the driving support system 2, by generating advice based on the plan of power consumption of the entire route, it is not an advice of an instantaneous driving method but an overview in the form of current driving for the entire route. And can capture advice. Further, according to the driving support system 2, the power consumption plan on the route can be grasped without performing detailed calculations such as gradient information, wind, weather, temperature, vehicle characteristics, etc., and accurate driving advice can be obtained from the power consumption plan. Can be generated.

  As mentioned above, although embodiment which concerns on this invention was described, this invention is implemented in various forms, without being limited to the said embodiment.

  For example, in the present embodiment, the probe information is collected from the vehicle at the center, and applied to the driving support system including the center and the vehicle (navigation device) that analyzes the driving tendency at the center. The configuration may be such that information is collected by the in-vehicle device and the driving tendency is analyzed by the in-vehicle device. Moreover, although applied to the electric vehicle in this Embodiment, it is applicable also to the hybrid car which has an engine other than a motor as a drive source.

  Further, the travelable range information is provided in the first embodiment, and the driving advice information is provided in the second embodiment. The travelable range information is determined from the driving tendency of the driver of each vehicle at the center. In addition, driving advice information may be generated and both information may be provided by the vehicle. Further, other driving support information may be generated from the driving tendency of each vehicle, and the other driving support information may be provided.

  In the present embodiment, the driving assistance information is provided by displaying the information. However, the information may be provided by other means such as voice output, or driving assistance other than information provision may be performed. Also good.

  In the present embodiment, when a destination is input by a driver in the vehicle and a route to the destination is generated, probe information including change information of electric energy is transmitted to the center. During traveling, probe information including power amount change information may be transmitted to the center at all times.

  In this embodiment, the driver inputs the destination explicitly at the destination input unit. However, if it is possible to automatically set information equivalent to the destination on the device side, You may use your destination.

  In the present embodiment, the driving support target vehicle is periodically analyzed until the vehicle reaches the destination of the route, and the driving tendency of the vehicle (driver) is generated to generate driving support information. When the target vehicle has traveled to a predetermined section of the route (for example, about 1/2 or about 1/3), the analysis of driving tendency and generation of driving support information may be terminated, or from the driver Only when there is a request, analysis of driving tendency and generation of driving support information may be performed.

  In addition, the center collects probe information including information on the change in electric energy for each travel route from a number of vehicles at the center, and determines the driving characteristics of the driver of the vehicle based on the information on the change in the electric energy of the vehicle to be driven. When the estimated driving assistance vehicle travels along an arbitrary driving route, the estimated driving characteristics of the driver of the driving assistance target vehicle change in the amount of electric power collected from various vehicles for the arbitrary driving route. The driving characteristics of the driver of the vehicle subject to driving assistance are corrected using the information, and the driving assistance target vehicle is driven based on the corrected driving characteristics (for example, information on the point information that can be reached on the travel route, (Energy-saving travel information on the travel route may be provided).

  DESCRIPTION OF SYMBOLS 1, 2 ... Driving assistance system 3, 5 ... Navigation apparatus 4, 6 ... Center, 10 ... Communication terminal, 11 ... Destination input part, 12 ... Current position detection part, 13 ... Route generation part, 14 ... Electric energy Detection unit, 15 ... Electric energy transmission unit, 16 ... Travelable range reception unit, 17 ... Display unit, 18 ... Driving advice reception unit, 20 ... Communication terminal, 21 ... Power probe reception unit, 22 ... Probe information storage unit, 23 ... driving tendency analysis unit, 24 ... travelable range transmission unit, 25 ... driving advice transmission unit.

Claims (6)

A driving support device that supports driving with respect to a vehicle having a motor as a drive source,
A collecting means for collecting change information of electric energy for each travel route from an arbitrary vehicle;
An arbitrary travel route traveled by the vehicle subject to driving assistance is classified into a plurality of driving characteristics based on the change information of the electric energy collected by the collecting means, and the driving assistance target of the driving assistance target is selected from the classified driving characteristics. Driving characteristic estimating means for estimating the driving characteristic of the vehicle;
With
A driving support apparatus that supports driving of the vehicle to be driven based on the driving characteristics estimated by the driving characteristic estimation means.   Based on the driving characteristic estimated by the driving characteristic estimation means, the reachable point on the arbitrary travel route is predicted with the current power amount in the driving support target vehicle, and the reachable point is determined as the driving support target The driving support device according to claim 1, wherein the driving support device is provided by a vehicle.   The energy saving driving information on the arbitrary travel route is acquired based on the driving characteristic estimated by the driving characteristic estimating means, and the energy saving driving information is provided by the vehicle that is the driving support target. Item 2. The driving support device according to Item 1. A driving support device that supports driving with respect to a vehicle having a motor as a drive source,
A collecting means for collecting change information of electric energy for each travel route from an arbitrary vehicle;
Driving characteristic estimation means for estimating the driving characteristic of the driver based on the change information of the electric energy of the vehicle that is the driving support target;
With
Driving assistance for the driving assistance target vehicle based on the driving characteristic of the driver of the driving assistance target vehicle estimated by the driving characteristic estimation means and the change information of the electric energy for any travel route collected by the collection means. A driving support device characterized by that.   Based on the driving characteristics of the driver of the driving support target vehicle estimated by the driving characteristic estimation means and the change information of the electric energy for any travel route collected by the collecting means, the current power in the driving support target vehicle The driving support device according to claim 4, wherein a reachable point on the arbitrary traveling route is predicted by a quantity, and the reachable point is provided by the vehicle as the driving support target.   Energy saving on the arbitrary driving route based on the driving characteristic of the driver of the vehicle to be supported for driving estimated by the driving characteristic estimating unit and the change information of the electric energy for the arbitrary driving route collected by the collecting unit. The driving support device according to claim 4, wherein driving information is acquired, and the energy saving driving information is provided by the driving support target vehicle.

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