WO2014020887A1 - ナビゲーション装置 - Google Patents
ナビゲーション装置 Download PDFInfo
- Publication number
- WO2014020887A1 WO2014020887A1 PCT/JP2013/004580 JP2013004580W WO2014020887A1 WO 2014020887 A1 WO2014020887 A1 WO 2014020887A1 JP 2013004580 W JP2013004580 W JP 2013004580W WO 2014020887 A1 WO2014020887 A1 WO 2014020887A1
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- WIPO (PCT)
- Prior art keywords
- cruising
- electric vehicle
- cruising range
- range
- current location
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3697—Output of additional, non-guidance related information, e.g. low fuel level
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B60L7/10—Dynamic electric regenerative braking
- B60L7/12—Dynamic electric regenerative braking for vehicles propelled by dc motors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3469—Fuel consumption; Energy use; Emission aspects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/003—Maps
- G09B29/006—Representation of non-cartographic information on maps, e.g. population distribution, wind direction, radiation levels, air and sea routes
- G09B29/007—Representation of non-cartographic information on maps, e.g. population distribution, wind direction, radiation levels, air and sea routes using computer methods
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/10—Map spot or coordinate position indicators; Map reading aids
- G09B29/106—Map spot or coordinate position indicators; Map reading aids using electronic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/10—Air crafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/34—Cabin temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/62—Vehicle position
- B60L2240/622—Vehicle position by satellite navigation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/80—Time limits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60L2250/00—Driver interactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/50—Control modes by future state prediction
- B60L2260/52—Control modes by future state prediction drive range estimation, e.g. of estimation of available travel distance
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/50—Control modes by future state prediction
- B60L2260/54—Energy consumption estimation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- This disclosure relates to a navigation device used in an electric vehicle.
- navigation devices that display an indication of the distance that an electric vehicle can travel on an electronic map are known.
- Patent Document 1 discloses a technique for indicating a cruising distance of an electric vehicle by displaying a travelable range of the electric vehicle on an electronic map in a circular shape centered on the own vehicle.
- a frame for specifying the position of a non-display boundary is displayed when the entire boundary of the travelable range of the electric vehicle does not fit in the display area (that is, the screen) of the display screen.
- the non-display boundary corresponding to the frame or the like is changed to the maximum scale electronic map that can be displayed.
- Patent Document 2 discloses a technique for indicating a travelable range by displaying a point where the host vehicle can reach on a guidance route to a searched destination.
- Patent Document 1 has a problem that it lacks convenience for the user. Details are as follows. There is a trouble that the user has to perform an operation to fit the boundary of the travelable range on the screen. Furthermore, since the electronic map is automatically changed to the maximum scale that can display the non-display boundary corresponding to the frame selected by the user, the scale is low when the travelable range is wide and high scale when the travelable range is narrow. Thus, the electronic map cannot be displayed at the scale of the user's preference.
- the present disclosure has been made in view of the above points, and the purpose of the present disclosure is convenience for the user while reducing the psychological burden of the user of the electric vehicle that drives while paying attention to the cruising distance and time. It is another object of the present invention to provide a navigation device that makes it possible to prevent damage.
- a navigation device used in an electric vehicle having an electric motor as a travel drive source according to an aspect of the present disclosure and a travel battery that supplies electric power to the electric motor includes a position acquisition unit, a display control unit, a cruising range calculation unit, and a prediction A cruising range calculation unit and a progress calculation unit are provided.
- the position acquisition unit sequentially acquires the current location of the electric vehicle.
- the display control unit displays an electronic map on a screen of a display device.
- the cruising range calculation unit calculates a cruising range of the electric vehicle at the current location.
- the cruising range is at least one of a cruising distance and a cruising time in which the electric vehicle can travel with the remaining charge amount of the traveling battery.
- the predicted cruising range calculation unit calculates a predicted cruising range of the electric vehicle at the current location.
- the predicted cruising range is calculated based on a cruising range at a departure place where the electric vehicle starts to travel.
- the progress calculation unit calculates a degree of expansion / contraction of the cruising range at the current location with respect to the predicted cruising range.
- the display control unit spreads the fan-shaped light trail shape seen when the irradiation light from the point light source is projected onto the road surface ahead toward the traveling direction of the electric vehicle from the current location of the electric vehicle. Superimposed on the electronic map.
- the display control unit is a range that always fits on the screen of the display device regardless of the scale of the electronic map, and the light trace according to the degree of expansion / contraction of the cruising range calculated by the progress calculation unit. The length of the shape along the traveling direction is changed and displayed.
- the above navigation device it is possible to reduce the psychological burden on the user of the electric vehicle that drives while paying attention to the cruising distance and time, and it is possible to reduce the convenience for the user.
- FIG. 1 is a block diagram illustrating a schematic configuration of a navigation device according to an embodiment of the present disclosure.
- FIG. 2 is a diagram illustrating an example of functional blocks related to the navigation function in the control unit
- FIG. 3 is a flowchart showing an example of a flow of route guidance processing for an electric vehicle in the control unit
- FIG. 4 is a sub-flowchart showing an example of the flow of the first display process.
- FIG. 5 is a diagram illustrating an example of a display in a case where the estimated depletion time of the remaining charge amount of the traveling battery is superimposed on the light trace area display, FIG.
- FIG. 6 is a sub-flowchart showing an example of the flow of the second display process.
- FIG. 7 is a diagram showing an example of display in a case where the progress information, the branch arrival distance and the branch arrival time, and the branch direction are displayed superimposed on the light trace shape area display.
- FIG. 8 is a schematic diagram for showing an example of a light trace shape area display.
- FIG. 9 is a flowchart showing an example of a flow of processing related to guidance of the charging station in the control unit
- FIG. 10 is a diagram illustrating an example of the area display of the charging light trace shape.
- a navigation device 1 shown in FIG. 1 is mounted on an electric vehicle and has navigation functions such as route search and route guidance.
- An electric vehicle is an electric vehicle (EV) that uses only an electric motor (motor) as a travel drive source, and has a configuration capable of charging a travel battery that receives power from the outside of the vehicle and supplies power to the motor.
- EV electric vehicle
- motor electric motor
- PWD plug-in hybrid vehicle
- the navigation device 1 includes a position detector (POSI DETC) 11, a map data input device (M-DATA IN) 16, a storage medium (STORAGE) 17, an external memory (EXT MEMORY) 18, and a display device. (DISPLAY) 19, audio output device (AUDIO output) 20, operation switch group (SW) 21, remote control terminal (REMOTE CONT TM) 22, remote control terminal sensor (REMOTE CONT SENS) 23, external input unit (EXT INPUT) 24, a communication device (COMM) 25, and a control unit (CONTROL) 26.
- POSI DETC position detector
- M-DATA IN map data input device
- STORAGE storage medium
- EXT MEMORY external memory
- DISPLAY 19
- audio output device AUDIO output
- SW operation switch group
- SW remote control terminal
- REMOTE CONT SENS remote control terminal sensor
- EXT INPUT external input unit
- communication device COMM
- CONTROL control unit
- the position detector 11 includes a known geomagnetic sensor (GEOMAG SENS) 12, a gyroscope (GYRO) 13, a vehicle speed sensor (SPEED SENS) 14 for calculating a travel distance, and a radio wave from a satellite. It has a GPS receiver (GPS REC) 15 for a Global Positioning System (GPS) that detects the position, and sequentially detects the current location and traveling direction of the host vehicle.
- GPS REC Global Positioning System
- the position detector 11 may include a distance sensor instead of the vehicle speed sensor 14.
- the current location of the host vehicle is coordinates expressed by latitude and longitude, and the traveling direction of the host vehicle is an azimuth angle with respect to the north.
- the current location of the vehicle is referred to as the vehicle location.
- the geomagnetic sensor 12, the gyroscope 13, the vehicle speed sensor 14, and the GPS receiver 15 included in the position detector 11 have errors of different properties, they are configured to be used while being complemented by a plurality of sensors. Has been. Depending on the accuracy of each sensor, the position detector 11 may be configured as a part of the above.
- the map data input device 16 controls map data necessary for drawing an electronic map, which includes road data including node data and link data, background data indicating terrain, character data for displaying place names, and the like. This is a device for inputting to the unit 26.
- a storage medium 17 for storing map data is attached to the map data input device 16.
- the storage medium 17 for example, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disk Read Only Memory (DVD-ROM), memory card, HardHDisk Drive (HDD) or the like is used.
- a link connects between nodes when each road on the electronic map is divided by a plurality of nodes such as intersections, branches, and / or junction points.
- the link data includes a link ID, which is a unique number for identifying the link, a link length indicating the link length, a link direction, a link direction, link start and end node coordinates (latitude and longitude), road name, one-way attribute, etc. Each data of is included.
- the node data includes each data such as a node ID, a node coordinate, a node name, and a link ID of a link connected to the node.
- the above-mentioned background data is data that associates each facility or terrain on the map with the corresponding coordinates (latitude and longitude) on the map.
- data such as the types and names of various facilities are also included.
- the following description will be given on the assumption that the facility data includes the coordinates and name data of the charging station that can charge the battery for traveling of the electric vehicle.
- the charging station is also called a charging facility.
- the external memory 18 is a mass storage device such as a writable HDD.
- the external memory 18 stores a large amount of data and data that should not be erased even when the power is turned off, and frequently used data is copied from the map data input device 16 and used.
- the external memory 18 may be a removable memory having a relatively small storage capacity.
- the display device 19 is a display screen that displays a map for guiding driving of the vehicle, a destination selection screen, and the like, and is capable of full color display, for example, a liquid crystal display screen, an organic EL display screen, a plasma It can be configured using a display screen or the like.
- the voice output device 20 is composed of a speaker or the like, and outputs a guidance voice at the time of route guidance based on an instruction from the control unit 26.
- the operation switch group 21 for example, a touch switch or a mechanical switch integrated with the display device 19 is used, and an operation instruction for various functions is given to the control unit 26 by the switch operation.
- the operation switch group 21 includes switches for setting a departure place and a destination. By operating the switch, the user can set a departure point and a destination from points, facility names, telephone numbers, addresses, etc. registered in advance.
- the remote control terminal 22 is provided with a plurality of operation switches (not shown). By inputting various command signals to the control unit 26 via the remote control terminal sensor 23 by the switch operation, the same functions as the operation switch group 21 are provided. Can be executed by the control unit 26.
- the external input unit 24 is for the control unit 26 to acquire vehicle state data such as the vehicle speed of the host vehicle and the state of charge (SOC) of the running battery from an Electronic Control Unit (ECU) or sensor mounted on the host vehicle. Interface.
- vehicle status data is input to the external input unit 24 from an ECU or a sensor mounted on the host vehicle via an in-vehicle local area network (LAN) or the like that complies with a communication protocol such as a controller area network (CAN). Shall come.
- LAN local area network
- CAN controller area network
- the communication device 25 receives information such as road traffic information distributed from a Vehicle Information and Communication System (VICS) (registered trademark) center via a beacon laid on a network or a road or a frequency modulation (FM) broadcasting station in each place.
- VICS Vehicle Information and Communication System
- FM frequency modulation
- the map data of ADAS Horizon makes it possible to pre-read road attributes of areas that cannot be detected by in-vehicle sensors such as radars and cameras. For example, the curve curvature, road width, road width, It is assumed that road attribute data such as gradient, number of lanes, regulation speed, road type, etc. are included.
- the communication device 25 may be configured to include an individual device according to the type of target that is a direct communication partner.
- the control unit 26 is configured as a normal computer, and includes a well-known central processing unit (CPU), read only memory (ROM), random access memory (RAM), and input / output (I / O). ) And bus lines (both not shown) for connecting these components.
- the control unit 26 has a navigation function based on various information input from the position detector 11, the map data input device 16, the external memory 18, the operation switch group 21, the remote control terminal sensor 23, the external input unit 24, and the communication device 25. Various processes such as the above are executed.
- the control unit 26 includes, as functional blocks related to the navigation function, a vehicle position acquisition unit (POSI OBTN) 31, a remaining amount detection unit (STATE DETC) 32, a traffic information acquisition unit (TRAF INFO OBTN). ) 33, map data acquisition unit (M-DATA OBTN) 34, cruising range calculation unit (RG CALC) 35, destination setting unit (DEST SET) 36, route calculation unit (ROUTE CALC) 37, guidance generation unit (NOTIFY) 38, a light trace shape generation unit (LG TR GENE) 39, and a map display control unit (MAP DISP CONT) 40.
- POSI OBTN vehicle position acquisition unit
- STATE DETC remaining amount detection unit
- TAF INFO OBTN traffic information acquisition unit
- M-DATA OBTN map data acquisition unit
- RG CALC cruising range calculation unit
- DEST SET destination setting unit
- ROUTE CALC guidance generation unit
- NOTIFY guidance generation unit
- LG TR GENE light trace shape generation unit
- the own vehicle position acquisition unit 31 acquires the current position of the own vehicle from the position detector 11, converts the coordinate to the world geodetic system, and outputs it.
- the remaining amount detection unit 32 acquires the SOC of the traveling battery of the host vehicle, and detects and outputs the remaining charge amount of the traveling battery from the SOC. Therefore, the own vehicle position acquisition unit 31 functions as a position acquisition unit.
- the traffic information acquisition unit 33 acquires the road traffic information from the communication device 25 that has received the road traffic information distributed from the VICS center, for example.
- the map data acquisition unit 34 acquires the map data input from the map data input device 16 or acquires the map data from the communication device 25 that has received the high-accuracy map data distributed from the ADASAHorizon distribution server. Or
- the map data acquisition unit 34 functions as a road attribute acquisition unit and a charging facility information acquisition unit.
- the map data acquisition unit 34 acquires the estimated transit time of the link determined from the past traveling history of the own vehicle or other vehicles.
- the past travel history may be acquired from the own vehicle for the own vehicle, or may be acquired from the other vehicle by inter-vehicle communication for the other vehicle, or by road-to-vehicle communication. It is good also as a structure acquired from a center.
- the cruising range calculation unit 35 is a distance that the host vehicle can travel with the remaining charge detected by the remaining amount detection unit 32 (hereinafter referred to as cruising distance) and a predicted depletion time of the remaining charge amount of the traveling battery (hereinafter referred to as cruising time). Is estimated.
- the cruising range includes at least one of cruising distance and cruising time.
- the cruising range calculation unit 35 may be configured to estimate the cruising distance from the average power consumption per unit distance of the traveling battery and the remaining charge amount detected by the remaining amount detection unit 32.
- the cruising range calculation unit 35 may be configured to estimate the cruising time from the average power consumption per unit time of the traveling battery and the remaining charge amount detected by the remaining amount detection unit 32.
- the average power consumption per unit distance is obtained from, for example, the travel distance calculated from the vehicle position sequentially acquired from the position detector 11 and the amount of change in the remaining charge amount detected sequentially by the remaining amount detection unit 32. do it. Note that.
- the travel distance may be calculated from the detection result of the vehicle speed sensor 14.
- the average power consumption per unit time may be determined from, for example, the elapsed time measured by a timer (not shown) and the amount of change in the remaining charge amount sequentially detected by the remaining amount detection unit 32.
- the cruising range calculation unit 35 may be configured to estimate the cruising distance and cruising time in consideration of weather, temperature, use of an air conditioner, and other specific conditions. When there is a recommended route to be described later, the cruising distance calculation unit 35 determines the cruising distance and cruising time in consideration of link data of the recommended route, road traffic information about the recommended route, the road type of the recommended route, and the like. It is good also as a structure to calculate.
- the cruising range calculation unit 35 based on the traffic road information acquired by the traffic information acquisition unit 33 and the map data of ADAS Horizon acquired by the map data acquisition unit 34, the road attribute and the road of the road attribute (that is, The power consumption corresponding to the road attribute is obtained by referring to the correspondence (hereinafter referred to as reference information) with the power consumption when the host vehicle travels the link).
- the road attributes mentioned here include the above-mentioned curve curvature, road width, gradient, number of lanes, regulated speed, road type, etc. as road attributes (hereinafter referred to as ADAS road attributes) included in the map data of ADAS Horizon.
- road attributes hereinafter referred to as ADAS road attributes
- the reference information may be configured to associate a power consumption smaller than a default value such as an average power consumption, for example, with respect to a road attribute in which energy regeneration may be frequently performed.
- a default value such as an average power consumption
- a default value may be associated.
- the power consumption may be associated with a smaller curve curvature.
- a power consumption smaller than the default value may be associated with a road frozen road.
- the power consumption is higher on the uphill than on the flat ground, while the power consumption is considered to be smaller on the downhill than on the flat ground.
- the cruising range calculation unit 35 obtains a link travel time (hereinafter referred to as a link travel time) from the required time included in the sequentially acquired road traffic information and the past travel history.
- a link travel time (hereinafter referred to as a link travel time) from the required time included in the sequentially acquired road traffic information and the past travel history.
- the power consumption and the link travel time according to the road attributes described above may be obtained sequentially each time new road traffic information and new ADAS-Horizon map data are acquired.
- the cruising range calculation unit 35 for example, after leaving the departure place such as the point where the ignition power is turned on, according to road traffic information acquired sequentially, ADAS Horizon map data, and the driving state of the vehicle, The cruising time may be calculated sequentially.
- the destination setting unit 36 sets a point selected by the user through the operation switch group 21 or the remote control terminal 22 as a destination.
- the destination setting unit 36 considers the cruising distance and the cruising time, such as limiting the destination to a point within the range where the destination can be returned or a point where the power can be reached within a predetermined power consumption range. It is good also as a structure which performs a setting.
- the route calculation unit 37 searches for a recommended route from the departure point (for example, the position of the vehicle) to the destination using a known search method. Therefore, the route calculation unit 37 functions as a route search unit.
- power consumption suppression priority can be selected as a search condition in addition to normal search conditions such as distance priority and time priority.
- the route calculation unit 37 searches for a recommended route in which the power consumption is limited to a predetermined range up to the destination, or reaches the destination with the remaining charge amount. Or search for a recommended route to return to your starting point later.
- the route calculation unit 37 can accurately predict the power consumption and the travel time when traveling on the route. Therefore, the route calculation unit 37 can accurately determine a recommended route in which power consumption is limited to a predetermined range to the destination, or a recommended route that can be returned to the departure point after reaching the destination with the remaining charge amount. Therefore, it is possible to reduce the psychological burden before the departure to the destination of the user of the electric vehicle that drives while considering the cruising distance.
- the cruising range calculation unit 35 sequentially calculates the cruising distance and cruising time at the current location after departure from the departure location.
- the route calculation unit 37 sequentially calculates the predicted cruising distance and predicted cruising time at the current location after departure from the departure location.
- the route calculation unit 37 estimates the predicted cruising distance and predicted cruising time based on the cruising distance and cruising time at the departure place. Therefore, the route calculation unit 37 functions as a predicted cruising range calculation unit.
- the route calculation unit 37 further calculates progress such as a cruising distance and a cruising time at the current location, such as advance and delay with respect to the predicted cruising distance and the predicted cruising time at the current location. Therefore, the route calculation unit 37 functions as a progress calculation unit.
- the predicted cruising distance and predicted cruising time may be calculated by subtracting the travel distance and travel time from the departure location to the current location from the cruising distance and duration calculated by the cruising range calculation unit 35 at the departure location. .
- the information on the progress of the cruising distance with respect to the predicted cruising distance corresponds to the distance that the cruising distance has been extended with respect to the predicted cruising distance or the distance that the cruising distance has been shortened with respect to the predicted cruising distance.
- the progress information of the cruising time with respect to time corresponds to the time when the cruising time is extended with respect to the predicted cruising time or the time when the cruising time is shortened with respect to the predicted cruising time.
- the route calculation unit 37 prefetches the cruising range and cruising time at the end of the link when the host vehicle reaches the end of the link of the forward road located in front of the traveling direction. To calculate. Specifically, the route calculation unit 37 travels to the link end of the front road based on the ADAS road attribute and road traffic information of the front road acquired by the map data acquisition unit 34 functioning as a road attribute acquisition unit. Power consumption necessary for the calculation is calculated, and a distance and time corresponding to the power consumption are calculated.
- the route calculation unit 37 determines that the vehicle is at the link end of the forward road based on the distance and time corresponding to the cruising distance and range of the current location and the power consumption necessary to travel to the link end of the front road. When it reaches, the cruising distance and cruising time at the end of the link on the road ahead are calculated in advance at the current location. The route calculation unit 37 further calculates the predicted cruising distance and predicted cruising time at the link end of the front road when the host vehicle reaches the link end of the front road by simple calculation based on the cruising distance and range of the current location. Is calculated in advance at the current location.
- the cruising distance and cruising time at the link end of the above road is calculated by subtracting the distance and time corresponding to the power consumption required to travel to the link end of the preceding road from the cruising distance and cruising time at the current location. What is necessary is just to set it as the structure to calculate.
- the predicted cruising distance and predicted cruising time at the link end of the above road were calculated without considering the distance from the cruising distance and cruising time at the current location to the link end of the preceding road, ADAS road attributes, and road traffic information. What is necessary is just to set it as the structure calculated by deducting the time required to drive
- the route calculation unit 37 calculates in advance the progress distance and cruising time at the link end point of the front road, such as the predicted cruising distance and the predicted cruising time at the link end point of the front road, at the current location. To do.
- the route calculation unit 37 sequentially searches for an alternative route, until the branch point to the alternative route (hereinafter referred to as a branch reach distance) and the branch point are reached. (Hereinafter, branch arrival time) is also calculated.
- the alternative route here refers to a route that can reach a destination other than the recommended route.
- the route that can reach the destination may be a route that can reach the destination without reaching a dead end or returning backward from the current location, or a route that can reach the destination with the remaining charge amount. May be.
- the route that can reach the destination with the remaining charge amount may be searched using the link travel time and cruising time of each link connected to the road link ahead of the vehicle position, or ahead of the vehicle position. You may search using the link length and cruising distance of each link connected to the road link.
- the route calculation unit 37 searches for a charging station that can be reached from the vehicle position, and calculates a route to the nearest charging station.
- the charging station that can be reached from the own vehicle position here refers to a charging station that can be reached from the own vehicle position with the remaining charge amount.
- the guidance generating unit 38 mediates between the cruising distance and cruising time, the branching distance and branching time to the alternative route, the progress information, the route guidance voice and the route guidance display, and alerts the driver at the optimum timing.
- Arbitration here refers to cruising distance, cruising time, branching distance to alternate route and branching time being less than predetermined values, and guidance to the user in preference to route guidance voice and route guidance display. If this is not the case, it is indicated that the route guidance voice or route guidance display is interrupted to guide the cruising distance, cruising time, branch distance to the alternative route, and branch time.
- guidance on the charging station is also provided.
- the light trace shape generation unit 39 generates a light trace shape that spreads in the traveling direction of the host vehicle based on the own vehicle position based on the progress information obtained from the route calculation unit 37. What is necessary is just to set it as the structure acquired from the position detector 11 about the advancing direction of the own vehicle.
- the light trace shape referred to here is a fan-like shape that is seen when projecting light from a point light source onto the front road surface, and projecting light from the vehicle headlamp onto the front road surface. It is the same shape as the outline shape of the boundary of the light seen when doing. Further, the light trace shape is a fan shape, and is not limited to a fan shape. That is, the shape is not limited to a shape obtained by dividing a circle by two radii, but also includes a shape having an arc having a curvature different from that of an arc obtained by dividing a circle by two radii.
- the light trace shape generation unit 39 changes the vertical length of the light trace shape from the default range according to the progress information so that the range always fits on the screen of the display device 19 regardless of the scale of the electronic map. Change.
- the vertical direction here refers to the direction along the traveling direction of the host vehicle.
- the light trace shape generation unit 39 generates the light trace shape so that the vertical length of the light trace shape is longer than the default when the progress information is the distance or time that the cruising distance or cruising time is extended. Is a distance or time with a reduced cruising distance or cruising time, the vertical length of the light trace shape is generated to be shorter than the default.
- the degree to which the light trace shape generation unit 39 changes the length of the light trace shape in the vertical direction may be changed in multiple stages according to the cruising distance and the cruising distance and time.
- the vertical length of the light trace shape is generated by a certain value regardless of the extended distance or time, while the cruising distance or cruising time is shortened.
- the length of the light trace shape in the vertical direction may be shortened by a certain value regardless of the shortened distance or time.
- the light trace shape generation unit 39 when the above-described alternative route exists within a predetermined range, the alternative route so that the range always fits on the screen of the display device 19 regardless of the scale of the electronic map.
- the length (that is, the opening degree) along the horizontal direction perpendicular to the vertical direction of the light trace shape is changed from the default range in accordance with the branching direction.
- the length along the horizontal direction of the light trace shape is also referred to as the lateral opening width of the light trace shape.
- the lateral opening width of the light trace shape has an upper limit of 180 degrees.
- the lateral direction indicates the left-right direction with respect to the traveling direction of the host vehicle.
- the light trace shape generation unit 39 does not search for a recommended route, and even when there is no alternative route, the branch direction from a branch point (for example, the nearest intersection) within a predetermined range ahead of the traveling direction Accordingly, the lateral opening width of the light trace shape may be changed from the default range.
- a branch point for example, the nearest intersection
- the light trace shape generation unit 39 has a large number of branches from a branch point (for example, the nearest intersection) existing within a predetermined range from the own vehicle position and a number of branches to an alternative route existing within the predetermined range from the own vehicle position. Indeed, the lateral opening width of the light trace shape may be increased from the default range.
- the map display control unit 40 superimposes the area display of the light trace shape generated by the light trace shape generation unit 39 and a known navigation screen display such as an electronic map for navigation and an own vehicle position icon to display the display device. 19 is displayed. Therefore, the map display control unit 40 functions as a display control unit.
- the area display of the light trace shape is drawn on the electronic map, but since it needs to be controlled independently of the navigation function, it is drawn on a layer independent of the drawing of the vehicle position icon and the electronic map.
- the process shown in FIG. 3 is started by the control unit 26 when, for example, the ignition power supply of the host vehicle is turned on.
- the control unit 26 sequentially acquires the vehicle position by the vehicle position acquisition unit 31 and sequentially detects the remaining charge amount of the traveling battery by the remaining amount detection unit 32.
- the control unit 26 starts a cruising range calculation process and proceeds to S2.
- the cruising range calculation unit 35 calculates the cruising distance and cruising time at the departure point at the departure point where the ignition power is turned on as described above. It is assumed that the cruising range calculation process is sequentially performed after the start of traveling from the departure place, and the current cruising distance and cruising time are sequentially updated.
- control unit 26 performs the first display process, returns to S1, and repeats the flow.
- an outline of the first display process performed by the control unit 26 will be described using the flowchart of FIG.
- the control unit 26 performs progress calculation processing, and proceeds to S32.
- the progress calculation process as described above, the progress of the cruising distance and cruising time at the current location with respect to the predicted cruising distance and cruising time estimated from the cruising distance and cruising time at the departure place is calculated by the route calculation unit 37. Is calculated.
- the progress calculation process as described above, when traveling on the front road in the traveling direction of the host vehicle, the predicted cruising distance and predicted cruising time at the link end of the front road are compared with those at the link end of the front road. The cruising distance and the progress of the cruising time may be pre-read and calculated.
- the control unit 26 performs light trace shape generation processing, and proceeds to S33.
- the light trace shape generation unit 39 generates the light trace shape as described above based on the progress information calculated in the progress calculation process of S31.
- the light trace shape generation process when it is necessary to change the length of the light trace shape in the vertical direction according to the progress, the light trace shape is generated by changing the length of the vertical direction.
- the control unit 26 performs a superimposed display process and proceeds to S4.
- the map display control unit 40 causes the display device 19 to display the area display of the light trace shape generated by the light trace shape generation unit 39 on the electronic map around the vehicle position.
- the display device is configured to change the length in the vertical direction of the area display of the light trace shape. 19 is displayed.
- the map display control unit 40 also includes text indicating the vehicle position icon, the remaining charge amount of the traveling battery, the current cruising distance and cruising time, and the progress information calculated in the progress calculation process of S31.
- the display device 19 may be configured to display the electronic map around the vehicle.
- the map display control unit 40 superimposes the remaining charge amount of the traveling battery, the current cruising distance and cruising time, and the text indicating the progress information calculated in the progress calculation process of S31 on the light trace shape area display.
- the display device 19 may be displayed.
- the current cruising time calculated by the cruising range calculation processing (that is, the estimated depletion time of the remaining charge amount of the traveling battery) is displayed superimposed on the light trace area display.
- An example of display is shown.
- FIG. 5A shows the vehicle position icon, and B shows a light trace shape area display.
- the text display of “72 min” in FIG. 5 indicates the estimated depletion time of the remaining charge amount of the traveling battery.
- the remaining charge amount of the traveling battery, the current cruising distance and cruising time, and the progress information calculated by the progress calculation process of S31 are presented to the user by causing the voice output device 20 to output the voice. It is good also as a structure.
- control unit 26 performs a route search process and proceeds to S5.
- route search process as described above, the route calculation unit 37 searches for a recommended route from the departure point (the vehicle position after departure) to the destination.
- control unit 26 performs route display processing and proceeds to S6.
- the map display control unit 40 displays the destination set by the destination setting unit 36 and the recommended route searched by the route calculation unit 37 on the electronic map around the vehicle position.
- the route calculation unit 37 searches for an alternative route. If a branch point (that is, an intersection) to the alternative route exists within a predetermined range from the vehicle position (S6: YES), the process proceeds to S7. On the other hand, if there is no branch point (that is, an intersection) to the alternative route within the predetermined range from the vehicle position (S6: NO), the process proceeds to S9.
- within the predetermined range from the own vehicle position may be within a circle whose radius centered on the own vehicle position is a predetermined distance, or the own vehicle on the road ahead in the traveling direction of the own vehicle. It may be within a predetermined distance from the position.
- control unit 26 performs the second display process and proceeds to S8.
- an outline of the second display process performed by the control unit 26 will be described using the flowchart of FIG.
- the route calculation unit 37 calculates the branch arrival distance and the branch arrival time, and proceeds to S72.
- the control unit 26 performs the progress calculation process and proceeds to S73.
- the progress calculation process as described above, the progress of the cruising distance and cruising time at the current location is calculated with respect to the predicted cruising distance and predicted cruising time at the current location estimated from the cruising distance and cruising time calculated at the departure point.
- the calculation unit 37 calculates.
- the progress calculation process as described above, when the host vehicle travels on the front road in the traveling direction, the cruising distance or cruising at the link end of the front road is compared with the predicted cruising distance or predicted cruising time at the link end of the front road. It is good also as a structure which prefetches and calculates in the progress present position of time.
- control unit 26 performs a light trace shape generation process, and proceeds to S74.
- the light trace shape generation unit 39 generates the light trace shape as described above based on the progress information calculated in the progress calculation process of S72 and the branch direction to the alternative route.
- the light trace shape generation process of S73 when it is necessary to change the vertical length of the light trace shape according to the above-mentioned progress, the light trace shape is generated by changing the vertical length, When it is necessary to change the lateral width opening of the light trace shape according to the branching direction, the light trace shape is generated by changing the lateral width opening.
- the control unit 26 performs a superimposed display process and proceeds to S8.
- the map display control unit 40 causes the display device 19 to display the area display of the light trace shape generated by the light trace shape generation unit 39 on the electronic map around the vehicle position.
- the vertical length or horizontal direction of the area display of the light trace shape is generated. It is displayed on the display device 19 so as to change the opening of the direction width.
- the map display control unit 40 for example, the vehicle position icon, the remaining charge amount of the battery for travel, the current cruising distance and cruising time, the progress information calculated in the progress calculation process of S72, the branch reach distance
- text indicating rough branching directions such as branch arrival time and left and right may be displayed on the display device 19 together with the electronic map around the vehicle.
- the map display control unit 40 uses the remaining charge amount of the traveling battery, the current cruising distance and cruising time, the progress information calculated by the progress calculation process of S72, the branch reach distance and the branch reach time, and the text indicating the branch direction. May be configured to be displayed on the display device 19 so as to be superimposed on a light trace-shaped area display.
- FIG. 7 is used to show an example of the display when the progress information, the branch arrival distance, the branch arrival time, and the branch direction are superimposed on the light trace shape area display.
- FIG. 7A shows the vehicle position icon
- B shows a light trace shape area display.
- the text display “+15 km / 8 min” in FIG. 7 indicates the progress information
- the text display “1 km / 2 min left” indicates the branch reach distance, the branch reach time, and the branch direction.
- the guidance generator 38 outputs a voice output device for the remaining charge amount of the battery for traveling, the current cruising distance and cruising time, the progress information calculated in the progress calculation process of S72, the branch reach distance and the branch reach time, and the branch direction. It is good also as a structure shown to a user by making it audio
- FIG. 1
- control unit 26 determines whether or not the host vehicle has entered the alternative route.
- the control unit 26 may be configured to make a determination based on the vehicle position and map data sequentially acquired by the vehicle position acquisition unit 31 when determining whether or not the vehicle has entered an alternative route.
- control unit 26 determines that the host vehicle has entered the alternative route (S8: YES)
- the control unit 26 returns to the route search process of S4 and passes through the alternative route to reach the destination. Is newly searched again and the flow is repeated.
- the control unit 26 proceeds to S10.
- the control unit 26 determines whether or not the host vehicle has reached the destination. Whether or not the host vehicle has reached the destination may be determined based on the host vehicle position acquired sequentially by the host vehicle position acquisition unit 31 and the coordinates of the destination. And the control part 26 complete
- the degree of expansion or contraction of the electric vehicle's cruising distance or cruising time with respect to the predicted cruising distance or predicted cruising time is widened toward the traveling direction of the own vehicle based on the position of the own vehicle.
- it is expressed as a change in the vertical length of the light trace shape superimposed on the electronic map.
- the progression of the vehicle based on the vehicle position based on the degree of expansion or contraction of the cruising distance or cruising time of the electric vehicle with respect to the predicted cruising distance or predicted cruising time This is expressed as a change in the vertical length of the light trace shape superimposed on the electronic map so as to spread in the direction.
- the degree of expansion or contraction of the cruising distance or cruising time is expressed as a change in the vertical length of the light trace shape, the user can intuitively determine how much the cruising distance or cruising time will increase or decrease with traveling. Can be recognized. Therefore, it becomes possible to reduce the psychological burden on the user of the electric vehicle that drives while considering the cruising distance and time.
- the light trace shape described above is the same shape as the light trace shape of a vehicle headlamp that is familiar to users of electric vehicles as a shape that allows the user to feel the depth and width of the field of view. Therefore, by superimposing and displaying the light trace shape on the electronic map, it becomes possible for the user to obtain a visual sense of security in the direction in which the host vehicle is traveling. Therefore, also from this point, it is possible to reduce the psychological burden on the user of the electric vehicle that operates while paying attention to the cruising distance and time.
- the scale of the display device 19 can be whatever the scale desired by the user. There is no need for the user to perform an operation for storing all the light trace shapes on the screen. Therefore, it is difficult to impair convenience for the user.
- the lateral width of the light trace shape is narrow.
- an area display having a shape like a pencil beam is performed.
- the lateral width of the light trace shape becomes wide, and the bulge looks like a fan is opened.
- An area display having a shape is performed. Therefore, the user can intuitively recognize how many route options are available.
- A1 and A2 are own vehicle position icons, C is a tunnel, and D is a traffic light.
- C is a tunnel
- D is a traffic light.
- the cruising range calculation unit 35 performs a cruising range calculation process in the same manner as in S1 described above, and proceeds to S102.
- the cruising range calculation processing may be configured to calculate the cruising distance and cruising time in consideration of traffic jam information and traffic regulation information of road traffic information.
- the charging station search process is performed, and the process proceeds to S103.
- the route calculation unit 37 searches for a charging station that can be reached from the vehicle position.
- a route calculation process is performed, and the process proceeds to S104.
- the route calculation unit 37 calculates the route to the charging station closest to the vehicle position among the searched charging stations.
- a presentation information calculation process is performed, and the process proceeds to S105.
- the route calculation unit 37 has an orientation of the charging station with respect to the own vehicle position (hereinafter, charging direction), an arrival time from the own vehicle position to the charging station (hereinafter, charging arrival time, own vehicle). A distance from the position to the charging station (hereinafter referred to as charging arrival distance) is calculated.
- the light trace shape generation process for charging is performed, and the process proceeds to S106.
- the light trace shape generation process for charging the light trace of the charging station is shifted from the position of the area display of the original light trace shape displayed in the traveling direction of the host vehicle to the branching direction side toward the nearest charging station.
- the light trace shape generation unit 39 generates a shape (hereinafter, a charge light trace shape).
- the light trace shape for charging is also the same shape as the original light trace shape. Further, the charging light trace shape may be generated so as to face the above-described charging direction.
- the charging superimposed display process is performed, and the flow ends.
- the map display control unit 40 superimposes and displays the area display of the light trace shape for charging in addition to the area display of the original light trace shape.
- the map display control unit 40 is configured to display, for example, the text indicating the charging station name, the charging arrival time, and the charging reaching distance superimposed on the charging light trace area display. That's fine.
- the charging station name may be obtained from the map data.
- the charging station name, the charging arrival time, and the charging arrival distance may be configured to be presented to the user by the guidance generating unit 38 outputting the voice from the voice output device 20.
- the voice guidance including the above-described ones may be configured such that the user can set the presence / absence of an utterance and which item to guide through the operation switch group 21 and the remote control terminal 22.
- FIG. 10 is used to show an example of the display of the light trace shape for charging, and a display in the case where the text of the charging arrival time and the charging arrival distance is displayed superimposed on the area display.
- 10A the vehicle position icon, B the original light trace area display, E the charging light trace area display, and F the charging station icon.
- the text display of “2 min” in FIG. 10 indicates the charge arrival time
- the text display of “1 km” indicates the charge reach distance.
- the direction in which the most recent charging station exists is indicated by the light trace shape, so that the user can intuitively recognize the position of the charging station and can travel It is possible to further reduce the psychological burden on the user of the electric vehicle that drives the vehicle with time and attention.
- the charging arrival time and the charging arrival distance text are displayed, the user can know the arrival time and the arrival distance to the most recent charging station. It is possible to further reduce the psychological burden on the user of the electric vehicle to be performed.
Abstract
Description
(第1変形例)
次に、本実施形態の第1変形例を説明する。経路算出部37は、現在地においての航続距離や航続時間に基づいて、自車両が進行方向の前方に位置する前方道路のリンク終端まで達したときのリンク終端においての航続範囲や航続時間を先読みして算出する。詳しくは、経路算出部37は、道路属性取得部として機能する地図データ取得部34により取得された前方道路のADAS道路属性や道路交通情報に基づいて、自車両が前方道路のリンク終端まで走行するのに必要な電力消費量を算出し、その電力消費量に対応する距離や時間を算出する。その後、経路算出部37は、現在地の航続距離や航続範囲と前方道路のリンク終端まで走行するのに必要な電力消費量に対応する距離や時間に基づいて、自車両が前方道路のリンク終端に達したとき、前方道路のリンク終端においての航続距離や航続時間を現在地で予め算出する。経路算出部37は、さらに、現在地の航続距離や航続範囲に基づいて、単純計算により、自車両が前方道路のリンク終端に達したとき、前方道路のリンク終端においての予測航続距離や予測航続時間を現在地で予め算出する。上記前方道路のリンク終端においての航続距離や航続時間は、現在地においての航続距離や航続時間から、前方道路のリンク終端まで走行するのに必要な電力消費量に対応する距離や時間を差し引くことで算出する構成とすればよい。上記前方道路のリンク終端においての予測航続距離や予測航続時間は、現在地においての航続距離や航続時間から、前方道路のリンク終端までの距離やADAS道路属性や道路交通情報を考慮せずに計算したその距離を走行するのに必要な時間を差し引くことで算出する構成とすればよい。その後、経路算出部37は、前方道路のリンク終点においての航続距離や航続時間が、前方道路のリンク終点においての予測航続距離や予測航続時間に対しての進みや遅れといった進度を現在地で予め算出する。
(第2変形例)
次に、本実施形態の第2変形例を説明する。光跡形状生成部39は、自車位置から所定範囲内に存在する分岐点(例えば直近の交差点)からの分岐数や、自車位置から所定範囲内に存在する代替経路への分岐数が多くなるほど、デフォルトの範囲から光跡形状の横方向の開き幅を大きくさせる構成としてもよい。
(第3変形例)
次に、本実施形態の第3変形例について説明する。制御部26は、前述したように、自車位置周辺に充電ステーションがある場合は、充電ステーションの案内も行う。ここでは、図9のフローチャートを用いて、制御部26が行う充電ステーションの案内に関する処理の一例についての説明を行う。本フローは、例えば光跡形状のエリア表示が更新されたときに開始されるものとする。
Claims (12)
- 走行駆動源としての電動機と、その電動機へ電力を供給する走行用バッテリとを有する電動車両で用いられるとともに、
前記電動車両の現在地を逐次取得する位置取得部(31)と、
電子地図を表示装置の画面に表示させる表示制御部(40)と、
前記現在地においての前記電動車両の航続範囲を算出する航続範囲算出部(35)と、前記航続範囲は、前記走行用バッテリの残充電量で前記電動車両が走行できる航続距離及び航続時間の少なくともいずれか一方であり、
前記現在地においての前記電動車両の予測航続範囲を算出する予測航続範囲算出部(37)と、前記予測航続範囲は、前記電動車両が走行開始した出発地においての航続範囲に基づいて算出され、
前記現在地においての前記航続範囲が前記予測航続範囲に対しての伸び縮みの度合いを算出する進度算出部(37)とを備え、
前記表示制御部(40)は、
点光源からの照射光を前方の路面に投影する際に見られる扇状の光跡形状を、前記電動車両の現在地を基点として前記電動車両の進行方向に向けて広がるように前記電子地図上に重畳表示させ、
前記電子地図の縮尺に関わらず、前記表示装置の画面に常に収まる範囲で、前記進度算出部(37)で算出した前記航続範囲の伸び縮みの度合いに応じて、前記光跡形状の前記進行方向に沿った長さを変化させて表示させるナビゲーション装置。 - 前記航続範囲が前記航続距離である場合、前記現在地においての予測航続範囲は、前記出発地においての航続範囲から前記電動車両が前記現在地までの走行距離を差し引いた値であり、
前記航続範囲が前記航続時間である場合、前記現在地においての予測航続範囲は、前記出発地においての航続範囲から前記電動車両が前記現在地までの走行時間を差し引いた値である請求項1に記載のナビゲーション装置。 - 前記電動車両の前記進行方向において前方道路の道路属性を逐次取得する道路属性取得部(34)と、
前記電動車両が前記前方道路を走行する場合、前記前方道路の道路属性と前記電動車両が消費する電力消費量との対応関係を格納する対応関係格納部(26)とをさらに備え、
前記予測航続範囲算出部(37)は、
前記現在地の航続範囲、前記前方道路の道路属性と前記対応関係に基づいて、前記前方道路のリンク終端においての航続範囲を算出し、
前記前方道路の道路属性と前記対応関係に関わらず、前記現在地の航続範囲のみに基づいて、前記前方道路のリンク終端においての予測航続範囲を算出し、
前記進度算出部(37)は、前記前方道路のリンク終端においての前記航続範囲が前記予測航続範囲に対しての伸び縮みの度合いを現在地において先読みして算出する請求項1に記載のナビゲーション装置。 - 前記航続範囲が前記航続距離である場合、前記前方道路のリンク終端においての前記予測航続範囲は、前記現在地においての航続範囲から前記前方道路のリンク終端までの距離を差し引いた値であり、
前記航続範囲が前記航続時間である場合、前記前方道路のリンク終端においての前記予測航続範囲は、前記現在地においての航続範囲から前記電動車両が前記前方道路の属性と前記電力消費量との対応関係を考慮せずに前記前方道路のリンク終端まで走行するのに必要な時間を差し引いた値である請求項3に記載のナビゲーション装置。 - 前記表示制御部(40)は、
前記予測航続範囲に対して前記航続範囲が伸びる場合には、前記光跡形状の前記進行方向に沿った長さを長くし、
前記予測航続範囲に対して前記航続範囲が縮む場合には、前記光跡形状の前記進行方向に沿った長さを短くする請求項1~4のいずれか1項に記載のナビゲーション装置。 - 前記表示制御部(40)は、前記電子地図の縮尺に関わらず、前記表示装置の画面に常に収まる範囲で、前記電動車両の現在地から所定範囲内に存在する、前記前方道路から分岐可能な経路への分岐方位に応じて、前記光跡形状の前記進行方向に垂直する方向に沿う長さを変化させる請求項1~5のいずれか1項に記載のナビゲーション装置。
- 前記表示制御部(40)は、前記電子地図の縮尺に関わらず、前記表示装置の画面に常に収まる範囲で、前記電動車両の現在地から所定範囲内に存在する、前記前方道路から分岐可能な経路の分岐数が多くなるほど、前記光跡形状の前記進行方向に垂直する方向に沿う長さを大きくする請求項1~5のいずれか1項に記載のナビゲーション装置。
- 前記走行用バッテリの充電が可能な充電施設の位置の情報を取得する充電施設情報取得部(34)をさらに備え、
前記表示制御部(40)は、前記電動車両の現在地を基点として前記電動車両の進行方向に向けて表示させる前記光跡形状に加えて、当該充電施設に向かう経路についての充電用光跡形状をさらに前記電子地図上に表示させ、
前記充電用光跡形状は、当該光跡形状から前記電動車両の現在地に最も近い前記充電施設に向かう分岐方向側にずらして配置される請求項1~7のいずれか1項に記載のナビゲーション装置。 - 前記表示制御部(40)は、前記電動車両の現在地に最も近い前記充電施設までの距離、当該充電施設に到達するまでの時間、及び当該充電施設の名称の少なくともいずれかを示すテキストを、前記充電用光跡形状とともに表示させる請求項8に記載のナビゲーション装置。
- 目的地までの推奨経路を探索する経路探索部(37)をさらに備え、
前記表示制御部(40)は、前記経路探索部(37)で推奨経路を探索していた場合には、前記電動車両の現在地から前記推奨経路と前記推奨経路以外の前記目的地に到達可能な経路との分岐点までの距離、及び前記分岐点に到達するまでの時間の少なくともいずれかを示すテキストを、前記光跡形状とともに表示させる請求項1~9のいずれか1項に記載のナビゲーション装置。 - 前記表示制御部(40)は、前記進度算出部(37)で算出した前記予測航続範囲に対する前記航続範囲の伸び縮みの度合いを示すテキストを、前記光跡形状とともに表示させる請求項1~10のいずれか1項に記載のナビゲーション装置。
- 前記表示制御部(40)は、前記走行用バッテリの残充電量で前記電動車両が走行できる前記航続時間のテキストを、前記光跡形状とともに表示させる請求項1~11のいずれか1項に記載のナビゲーション装置。
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JP2014032085A (ja) | 2014-02-20 |
DE112013003791T5 (de) | 2015-04-23 |
US20150142305A1 (en) | 2015-05-21 |
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