WO2010137307A1 - 車両運転支援システム及び車両運転支援方法 - Google Patents
車両運転支援システム及び車両運転支援方法 Download PDFInfo
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- WO2010137307A1 WO2010137307A1 PCT/JP2010/003519 JP2010003519W WO2010137307A1 WO 2010137307 A1 WO2010137307 A1 WO 2010137307A1 JP 2010003519 W JP2010003519 W JP 2010003519W WO 2010137307 A1 WO2010137307 A1 WO 2010137307A1
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- charging
- charging spot
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- route search
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Definitions
- the present invention relates to an electric vehicle (moving body) that travels by charging a battery such as an electric vehicle or an electric motorcycle, and more particularly to a driving support system and a driving support method.
- Patent Literature 1 and Patent Literature 2 disclose a technology that gives the driver a sense of security by displaying “”.
- the vehicle driving support system and method of the present invention have the following configuration.
- a storage device for storing charging spot information for managing attribute information including position information of a charging spot, a route search request including a departure point, a destination, and a remaining battery level from a mobile unit, and the route search request
- the remaining battery level between the departure point and the destination is determined using the charging spot position information included in the charging spot information.
- a route search processing unit that searches for a route that passes through the charging spot, the amount of which is maintained greater than 0, and uses the searched route as a response to the route search request.
- Another aspect of the present invention further includes a charging spot information processing unit that calculates the cost between charging spots from the position information of the charging spot and stores it as cost information between the charging spots in a storage device. Using the cost information between charging spots stored in the storage device, the minimum cost path is searched for as a path passing through the charging spot.
- the charging spot information includes real-time information such as business hours of the charging spots and full availability as attribute information, and the charging spot information processing section Calculate the cost.
- the cost is at least one of the travel distance, travel time, and power consumption of the moving object.
- the power consumption of the road section corresponding to the position information of the moving object is further estimated from the position information of the moving object transmitted by the moving object and the probe information including the remaining battery level.
- a power consumption information processing unit that stores the power consumption amount as a power consumption map in the storage device, and the route search processing unit calculates the power consumption amount of the mobile object using the power consumption map stored in the storage device. Then, it is evaluated whether or not the remaining battery level can be maintained larger than 0 based on the calculated power consumption.
- the present invention it is possible to extract a charging spot that can be driven without running out of the battery (while maintaining the amount of electric power as the remaining battery charge> 0), and to output a route via the extracted charging spot to the mobile body. , Can support the driving of the moving body.
- FIG. 1 is a configuration diagram of a driving support system for a moving body.
- the driving support system for a mobile unit includes a mobile unit 10, a remote guidance server 20 that provides route information to the mobile unit 10, and information for the mobile unit 10 to detect its position.
- 10 includes a location information transmitter 30 that transmits from the outside, a wireless communication base station 40 that is a connection destination of a wireless communication line by the mobile body 10, and a network 50 that connects the remote guidance server 20 and the wireless communication base station 40.
- the mobile body 10 and the remote guidance server 20 communicate with each other via the wireless communication base station 40 and the network 50.
- a plurality of wireless communication base stations 40 are connected to one remote guidance server 20 via a network 50.
- the radio communication base station 40 can communicate with a plurality of mobile units 10 simultaneously.
- the mobile unit 10 will be described as a vehicle equipped with a wireless communication device and connected to the remote guidance server 20 by wireless communication.
- the moving body 10 includes a position detection device 120 that detects the position of the moving body 10 using a device corresponding to the position information transmitter 30 such as GPS or an optical beacon, an autonomous navigation device such as a vehicle speed pulse or a gyro, a mobile phone or a PHS, A wireless communication device 130 such as a wireless LAN, an output device 140 such as a liquid crystal display or a speaker, a battery management device 150 that manages the state of the battery such as measuring the remaining battery level, and a central processing unit (CPU) 110 are mounted. .
- a position detection device 120 that detects the position of the moving body 10 using a device corresponding to the position information transmitter 30 such as GPS or an optical beacon, an autonomous navigation device such as a vehicle speed pulse or a gyro, a mobile phone or a PHS, A wireless communication device 130 such as a wireless LAN, an output device 140 such as a liquid crystal display or a speaker, a battery management device 150 that manages the state of the battery such as measuring the remaining
- the central processing unit (CPU) 110 is connected to the position detection device 120, the wireless communication device 130, the output device 140, the battery management device 150, and the like, and transmits a vehicle state to the remote guidance server 20 and receives a search route. Realize the function to do.
- the central processing unit 110 by executing the program, transmits the position information of the departure point and the destination and the remaining battery amount to the remote guidance server 20, and acquires the route search result information 151 from the remote guidance server 20.
- the vehicle state processing unit 112 that periodically transmits the position information of the moving body 10 acquired from the processing unit 111 and the position detection device 120 and the battery remaining amount of the moving body 10 acquired from the battery management device 150 to the remote guidance server 20.
- the remote guidance server 20 is connected to the communication device 230 for connecting to the network 50, the storage device 250 such as a hard disk for storing the charging spot information 251 and the numerical map 255, the communication device 230 and the storage device 250, and the route A central processing unit (CPU) 210 that realizes searching and the like is included.
- the storage device 250 such as a hard disk for storing the charging spot information 251 and the numerical map 255
- the communication device 230 and the storage device 250 and the route A central processing unit (CPU) 210 that realizes searching and the like is included.
- FIG. 2 is a diagram illustrating an example of charging spot information 251 for managing charging spot attribute information.
- the items of the charging spot information 251 include a charging spot ID 2510 for identifying a charging spot, a charging spot name 2511, a latitude 2512, a longitude 2513, an address 2514 representing the position of the charging spot, a charging spot business time 2515, and a charging spot.
- the charging method 2516 is full space information 2517 indicating the current state of the charging spot (full state or empty state), and the information is stored in the storage device 250 for each charging spot.
- the travel distance 2524, travel time 2525, and power consumption 2526 are the results of the search.
- the driving distance 2524 among all combinations of the charging spots stored in the charging spot information 251 is a cruising distance at the time of full charging of a general electric vehicle (possible with one full charging) Travel distance 2524, travel time 2525, and power consumption 2526 are stored for each of the following combinations.
- the items of the power consumption map 254 are the level 2540 representing the level of detail of the map, the mesh ID 2541 that identifies the square when the map at the level 2540 is simply divided into squares, and another intersection starting from one intersection in the mesh ID 2541
- the link ID 2542 for identifying the link to be the end point, and the power consumption 2543 representing the amount of power consumed by the mobile body in the link ID 2542, and these pieces of information are stored in the storage device 250 for each intersection.
- the mesh ID 2541 is information for the remote guidance server 20 to recognize the intersection (point) that is the starting point of the link on the map.
- the other intersection as the end point may be in the same mesh as the starting intersection or in a different mesh.
- the reason for holding the power consumption 2543 corresponding to the one-way link from the start point to the end point is that the power consumption may be different from the reverse direction, such as when the path corresponding to the link is a slope. .
- FIG. 6 is a flowchart in which the processing (charging spot information processing unit 212) of the central processing unit (CPU) 210 mounted on the remote guidance server 20 generates the cost 252 between charging spots.
- the charging spot information processing unit 212 is activated by an operator of the remote guidance server 20 at a rate of once every four months, for example, and executes processing.
- R the cruising distance at the time of full charge of a general electric vehicle
- R may be used for each vehicle type and year.
- the charging spot information processing unit 212 of the remote guidance server 20 calculates a variable t from 1 to the number M of time zone types in order to calculate the cost for each day of the week such as Saturdays, Sundays, holidays, and weekly hours. Add one by one (S1214).
- the charging spot information processing unit 212 of the remote guidance server 20 checks the number of charging spots stored in the charging spot information 251 from 1 to check all combinations of charging spots stored in the charging spot information 251. Add up to N one by one (S1216).
- the charging spot information processing unit 212 of the remote guidance server 20 checks the number of charging spots stored in the charging spot information 251 from 1 to check all combinations of charging spots stored in the charging spot information 251. Add up to N one by one (S1218).
- the charging spot information processing unit 212 of the remote guidance server 20 compares the value of i with the value of j (S1220). If i and j are different from each other, the process proceeds to S1220. If i and j are equal to each other, the process proceeds to S1282 because the charging spot is the same.
- the charging spot information processing unit 212 of the remote guidance server 20 determines the sth search condition and the tth search time zone (S1230).
- the charging spot information processing unit 212 of the remote guidance server 20 acquires the latitude 2512 and longitude 2513 of the i-th and j-th charging spot information from the charging spot information 251 (S1240).
- the charging spot information processing unit 212 of the remote guidance server 20 calculates the power consumption between the charging spots using the power consumption map 255 for the route searched in S1250 (from the i-th charging spot to the j-th charging spot).
- the power consumption amount 2543 for each link ID 2542 is added), and the calculation result is compared with the power amount when a general electric vehicle is fully charged (S1260).
- the power consumption between charging spots may be calculated simply by multiplying the ratio of the cruising distance R of a general electric vehicle during full charging and the distance traveled between charging spots by the amount of power during full charging. . If the calculated power consumption between the charging spots is smaller than the power consumption during full charging, the process proceeds to S1270.
- the charging spot information processing unit 212 of the remote guidance server 20 returns to S1218 if j is N or less (S1282). If j is equal to N, the process proceeds to S1284.
- the charging spot information processing unit 212 of the remote guidance server 20 returns to S1216 if i is N or less (S1284). If i is equal to N, the process proceeds to S1286.
- the charging spot information processing unit 212 of the remote guidance server 20 returns to S1214 if t is M or less (S1286). If t is equal to M, the process proceeds to S1288.
- the charging spot information processing unit 212 of the remote guidance server 20 returns to S1212 if s is L or less (S1288). If s is equal to L, the process of generating the charge spot cost 252 is terminated.
- the route search processing unit 211 of the remote guidance server 20 issues a route search request without considering these items for items not included (not specified) in the route search request.
- the route search processing unit 211 of the remote guidance server 20 processes items that are not included (not specified) in the route search request among the remaining battery level, the search conditions, and the departure time zone, by using preset initial values. For example, the initial value of the remaining battery level is “20 kwh”, the initial value of the search condition is “priority toll road priority”, and the initial value of the departure time zone is “Sun 12:00”.
- the route search processing unit 211 of the remote guidance server 20 compares the power consumption from the start point to the end point of the section obtained in S1120 with the remaining battery power (available power amount) at the section start point (S1130). .
- S1130 evaluates whether the battery remaining amount at the section start point can reach the end point from the start point of the section without charging. If the power consumption from the start point to the end point of the section exceeds the remaining battery level, that is, if the remaining battery level does not reach the end point from the start point to the end point without charging, the power consumption from the start point to the end point of the section If it is smaller than the amount, that is, if the remaining battery level can reach the end point from the start point to the end point without charging, the process proceeds to S1186.
- the route search processing unit 211 of the remote guidance server 20 returns to S1102. If it is the last section (that is, the end point of the section is the destination), the process proceeds to S1190.
- the route search processing unit 211 of the remote guidance server 20 combines and outputs the route of the section generated in S1110 or S1180, and ends the route search processing (S1190).
- the information output by the route search processing unit 211 may be only information on charging spots to be relayed instead of routes.
- the route search processing unit 211 of the remote guidance server 20 acquires in S1140, S1152, and S1153 in FIG. 7 and, depending on the case, all the charging spots and the start points, end points, and the vicinity of the start points of the sections, the vicinity of the end points.
- a work area is provided with node information indicating the immediately preceding charging spot 2552 that passed before reaching the charging spot and the cost 2553 at the time of reaching the charging spot, and all the provided confirmation information 2551 is unconfirmed.
- the start point and end point of the section are also treated as charging spots.
- the charging spot ID 2550 in FIG. 10 for example, the section start point is ⁇ 1 and the section end point is ⁇ 2.
- the cost is travel time including charging time.
- the cost 252 between charging spots 252 in FIG. 3 and the charging spot information processing unit 212 in FIG. 6 take the travel distance 2524, travel time 2525, and power consumption 2526 as costs. Travel time including time.
- the travel distance and power consumption may be used as the cost, or a combination of these may be used as the cost.
- the route search processing unit 211 of the remote guidance server 20 searches for a charging spot in which the confirmation information 2551 in FIG. 10 set in the work area is unconfirmed until the section end confirmation information 2551 in FIG. 10 is confirmed. The process is repeated (S4070).
- (d, t) OB in FIG. 11 is the travel distance and travel time from node A to the end of the section
- (d, t) OA is the travel distance from the charging spot near the end closest to the end of the section to the end of the section.
- the node B is not selected even when the estimated arrival time at the node B is out of business hours or is full.
- S4120 selects a node B that can start and arrive at the remaining battery level at node A.
- the charging spot within reachable distance from the start point of the section may be the first waypoint, but it will not be the second place. This is because these charging spots are more efficient when they come first than via some charging spot. Therefore, when the loop 1 is not the first time (that is, the node A is not the start point of the section), the route search processing unit 211 of the remote guidance server 20 selects the first time from the plurality of nodes B extracted in S4120. The extracted node B is excluded (S4122). For example, in FIG. 9, when the charging spot A and the charging spot B are within the reachable range from the departure place and the charging spot C is outside the reachable range, the start point (departure place) of the section is set as the node A in the first S4080.
- the route search processing unit 211 of the remote guidance server 20 selects only the corresponding node B and excludes the other node B (S4138).
- the route search processing unit 211 of the remote guidance server 20 returns to S4070 if the section end point confirmation information 2551 is unconfirmed (S4180). If the final information 2551 at the end of the section is final, the process proceeds to S4190.
- 10 mobile body
- 20 remote guidance server
- 30 location information transmitter
- 40 wireless communication base station
- 50 network
- 110 central processing unit
- 111 route search request processing unit
- 112 vehicle state processing unit
- 120 position detection device
- wireless communication device 140 output device
- 230 communication device
- 251 charging spot information
- 252 cost between charging spots
- 253 probe information
- 254 power consumption map
- 255 numerical map.
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Abstract
Description
また、あらかじめ充電スポット間のコストを計算し保持しておくことで、高速に経路を求めることができる。
Claims (10)
- 充電スポットの位置情報を含む属性情報を管理するための充電スポット情報を格納する記憶装置、
移動体からの出発地、目的地、およびバッテリー残量を含む経路探索要求を受信し、前記経路探索要求への応答を送信する通信装置、および、
前記通信装置が受信した前記経路探索要求に応答して、前記充電スポット情報に含まれる前記充電スポットの位置情報を用いて、前記出発地から前記目的地までの間で前記バッテリ残量が0より大を維持する、前記充電スポットを経由する経路を探索し、探索した経路を前記経路探索要求への前記応答とする経路探索処理部を有することを特徴とする車両運転支援システム。 - さらに、前記充電スポットの前記位置情報から充電スポット間のコストを算出し、前記記憶装置に充電スポット間コスト情報として格納する充電スポット情報処理部を有し、前記経路探索処理部は、前記記憶装置に格納された前記充電スポット間コスト情報を用いて、前記充電スポットを経由する経路として最小コスト経路を探索することを特徴とする請求項1記載の車両運転支援システム。
- 前記充電スポット情報は、前記充電スポットの営業時間や満空状況などのリアルタイムな情報を前記属性情報として含み、前記充電スポット情報処理部は、前記属性情報に応じた前記充電スポット間のコストを算出することを特徴とする請求項2記載の車両運転支援システム。
- 前記コストは、前記移動体の走行距離、旅行時間、および電力消費量の少なくとも一つであることを特徴とする請求項2記載の車両運転支援システム。
- さらに、前記移動体が送信する前記移動体の位置情報及びバッテリ残量を含むプローブ情報から、前記移動体の位置情報に対応する道路区間の電力消費量を推定し、推定した電力消費量を前記記憶装置に電力消費地図として格納する電力消費情報処理部を有し、前記経路探索処理部は、前記記憶装置に格納された前記電力消費地図を用いて前記移動体の電力消費量を算出し、算出した電力消費量に基づいて前記バッテリ残量の0より大を維持できるか否かを評価することを特徴とする請求項1記載の車両運転支援システム。
- 充電スポットの位置情報を含む属性情報を管理するための充電スポット情報を格納する記憶装置、および、移動体からの出発地、目的地、およびバッテリー残量を含む経路探索要求を受信し、前記経路探索要求への応答を送信する通信装置を有する車両運転支援システムにおける車両運転支援方法であって、前記車両運転支援システムは、
前記通信装置が受信した前記経路探索要求に応答して、前記充電スポット情報に含まれる前記充電スポットの位置情報を用いて、前記出発地から前記目的地までの間で前記バッテリ残量が0より大を維持する、前記充電スポットを経由する経路を探索し、探索した経路を前記経路探索要求への前記応答とすることを特徴とする車両運転支援方法。 - 前記車両運転支援システムは、さらに、前記充電スポットの前記位置情報から充電スポット間のコストを算出し、前記記憶装置に充電スポット間コスト情報として格納し、
前記記憶装置に格納された前記充電スポット間コスト情報を用いて、前記充電スポットを経由する経路として最小コスト経路を探索することを特徴とする請求項6記載の車両運転支援方法。 - 前記充電スポット情報は、前記充電スポットの営業時間や満空状況などのリアルタイムな情報を前記属性情報として含み、前記車両運転支援システムは、前記属性情報に応じた前記充電スポット間のコストを算出することを特徴とする請求項7記載の車両運転支援方法。
- 前記コストは、前記移動体の走行距離、旅行時間、および電力消費量の少なくとも一つであることを特徴とする請求項7記載の車両運転支援方法。
- 前記車両運転支援システムは、さらに、前記移動体が送信する前記移動体の位置情報及びバッテリ残量を含むプローブ情報から、前記移動体の位置情報に対応する道路区間の電力消費量を推定し、推定した電力消費量を前記記憶装置に電力消費地図として格納し、前記記憶装置に格納された前記電力消費地図を用いて前記移動体の電力消費量を算出し、算出した電力消費量に基づいて前記バッテリ残量の0より大を維持できるか否かを評価することを特徴とする請求項6記載の車両運転支援方法。
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JP2014197020A (ja) | 2014-10-16 |
EP2437031A1 (en) | 2012-04-04 |
EP2437031A4 (en) | 2016-02-24 |
US20120136574A1 (en) | 2012-05-31 |
CN102460073A (zh) | 2012-05-16 |
US8768624B2 (en) | 2014-07-01 |
JPWO2010137307A1 (ja) | 2012-11-12 |
JP5903129B2 (ja) | 2016-04-13 |
JP5575760B2 (ja) | 2014-08-20 |
CN102460073B (zh) | 2015-04-01 |
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