WO2013061456A1 - Dispositif d'acquisition d'informations sur un corps mobile, procédé d'acquisition d'informations sur un corps mobile, programme d'acquisition d'informations sur un corps mobile et support d'enregistrement - Google Patents

Dispositif d'acquisition d'informations sur un corps mobile, procédé d'acquisition d'informations sur un corps mobile, programme d'acquisition d'informations sur un corps mobile et support d'enregistrement Download PDF

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Publication number
WO2013061456A1
WO2013061456A1 PCT/JP2011/074874 JP2011074874W WO2013061456A1 WO 2013061456 A1 WO2013061456 A1 WO 2013061456A1 JP 2011074874 W JP2011074874 W JP 2011074874W WO 2013061456 A1 WO2013061456 A1 WO 2013061456A1
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WO
WIPO (PCT)
Prior art keywords
amount
information
information acquisition
moving body
change
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PCT/JP2011/074874
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English (en)
Japanese (ja)
Inventor
福田　達也
進 大沢
安士　光男
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パイオニア株式会社
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Priority to JP2013540588A priority Critical patent/JP5663098B2/ja
Priority to PCT/JP2011/074874 priority patent/WO2013061456A1/fr
Publication of WO2013061456A1 publication Critical patent/WO2013061456A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0236—Circuits relating to the driving or the functioning of the vehicle for economical driving
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84—Data processing systems or methods, management, administration

Definitions

  • the present invention relates to a mobile body information acquisition apparatus, a mobile body information acquisition method, a mobile body information acquisition program, and a recording medium that acquire the state of a mobile body.
  • utilization of this invention is not restricted to a mobile body information acquisition apparatus, a mobile body information acquisition method, a mobile body information acquisition program, and a recording medium.
  • Patent Document 1 a vehicle information display device that displays information for prompting a user to drive while saving energy on a display unit is known (for example, see Patent Document 1 below).
  • the running resistance is calculated based on the vehicle speed and the running distance, and the running resistance is displayed on the display unit.
  • the mobile body information acquisition device is an energy amount consumed and recovered as the mobile body travels (hereinafter referred to as “actual energy amount”). ), A setting means for setting information on the moving body constituting the factor for each of a plurality of factors for increasing or decreasing the energy amount of the moving body, and a setting means Estimating means for estimating an energy amount consumed and recovered by the traveling (hereinafter referred to as “reference energy amount”) based on information on the mobile object at a reference time point, and an actual energy amount with respect to the reference energy amount Calculating means for calculating a change amount for each of the factors.
  • reference energy amount an energy amount consumed and recovered as the traveling
  • a mobile body information acquisition device is a current information acquisition means for acquiring an energy amount consumed and recovered as the mobile body travels (hereinafter referred to as “actual energy amount”); Based on the actual energy amount, for each of a plurality of factors that increase or decrease the energy amount of the mobile object, an estimation unit that estimates information about the mobile object that causes the factor, and the movement estimated by the estimation unit A recording means for recording information about the body, and a change amount of the information about the mobile body estimated by the estimation means with respect to the information about the mobile body recorded at a predetermined past time by the recording means. And calculating means for calculating for each.
  • a moving body information acquisition method is a moving body information acquisition method in a moving body information acquisition apparatus that acquires information on a moving body, and is consumed and collected as the moving body travels.
  • the actual energy amount is divided into a current information acquisition process for acquiring an energy amount (hereinafter referred to as “actual energy amount”) and a plurality of factors that increase or decrease the energy amount of the mobile object, and An estimation process for estimating the amount of energy, and acquisition of reference information for acquiring the amount of energy consumed and recovered (hereinafter referred to as “reference energy amount”) as the mobile body travels at the reference time for each of the factors.
  • reference energy amount for acquiring the amount of energy consumed and recovered
  • the mobile body information acquisition program according to the invention of claim 10 causes a computer to execute the mobile body information acquisition method according to claim 9.
  • a recording medium according to an invention of claim 11 is characterized in that the mobile body information acquisition program according to claim 10 is recorded in a computer-readable state.
  • FIG. 1 is a block diagram of a functional configuration of the mobile object information acquisition apparatus according to the embodiment.
  • FIG. 2 is a flowchart showing a procedure of mobile body information acquisition processing by the mobile body information acquisition apparatus.
  • FIG. 3 is a block diagram illustrating a hardware configuration of the navigation apparatus.
  • FIG. 4 is a flowchart showing a procedure of mobile object information acquisition processing by the navigation device.
  • FIG. 5 is a flowchart showing a procedure of mobile object information acquisition processing by the navigation device.
  • FIG. 6 is a flowchart showing another procedure of the mobile body information acquisition process by the navigation device.
  • FIG. 7 is an explanatory diagram illustrating an example of a display screen displayed on the display of the navigation device.
  • FIG. 1 is a block diagram of a functional configuration of the mobile object information acquisition apparatus according to the embodiment.
  • the mobile body information acquisition apparatus 100 calculates the amount of change for each of a plurality of factors that increase or decrease the amount of energy of the mobile body, and acquires the state of the mobile body based on the amount of change.
  • the mobile body information acquisition apparatus 100 includes a current information acquisition unit 101, a setting unit 102, an estimation unit 103, a calculation unit 104, a recording unit 105, and a notification unit 106.
  • the energy is, for example, an EV (Electric Vehicle) car, an HV (Hybrid Vehicle) car, a PHV (Plug-in Hybrid Vehicle) car (hereinafter simply referred to as “EV car”), for example, electricity, etc. It is based on energy.
  • EV Electric Vehicle
  • HV Hybrid Vehicle
  • PHV Plug-in Hybrid Vehicle
  • the current information acquisition unit 101 acquires the amount of energy consumed and recovered as the mobile object travels (hereinafter referred to as “actual energy amount”). Specifically, the current information acquisition unit 101 obtains the actual energy amount managed by an electronic control unit (ECU) via an in-vehicle communication network that operates according to a communication protocol such as CAN (Controller Area Network). Obtained for each of a plurality of factors that increase or decrease the amount of energy of the moving object.
  • ECU electronice control unit
  • CAN Controller Area Network
  • the plurality of factors that increase or decrease the amount of energy of the moving body are the following first information, second information, and third information.
  • the first information is information related to energy consumed by the equipment provided in the moving body.
  • the second information and the third information are information relating to energy consumed in a state where the motor that is the driving source of the moving body moves and travels.
  • the first information is the amount of energy consumed due to factors not related to the traveling of the moving object. More specifically, the first information is the amount of energy consumed by equipment such as an air conditioner, a car audio, a headlight, a winker, and a brake pump provided in the moving body.
  • equipment such as an air conditioner, a car audio, a headlight, a winker, and a brake pump provided in the moving body.
  • the second information is information related to energy consumed and recovered due to acceleration / deceleration of the moving body and road surface gradient.
  • the time of acceleration / deceleration of the moving body is a traveling state in which the speed of the moving body changes with time.
  • the time of acceleration / deceleration of the moving body is a traveling state in which the speed of the moving body changes within a predetermined time.
  • the second information is a ratio (hereinafter referred to as “recovery rate”) between the amount of energy consumed when the moving body is accelerated and the amount of energy collected when the moving body is decelerated. Good.
  • the recovered energy is energy that is recovered by converting energy generated during acceleration of the moving body into electrical energy during deceleration.
  • the third information is information related to energy consumed by the resistance generated when the mobile object is traveling.
  • the traveling time of the moving body is a traveling state in which the speed of the moving body is constant, accelerated or decelerated within a predetermined time.
  • the resistance generated when the mobile body travels is a factor that changes the travel state of the mobile body when the mobile body travels. Specifically, the resistance generated when the mobile body travels is resistance generated in the mobile body due to weather conditions, road conditions, vehicle conditions, and the like.
  • the resistance generated in the moving body due to weather conditions is air resistance due to weather changes such as rain and wind.
  • the resistance generated in the moving body depending on the road condition is road resistance due to road gradient, road unevenness, pavement state of the road surface, and the like.
  • the resistance generated in the moving body depending on the vehicle condition is a load resistance applied to the moving body due to tire air pressure, number of passengers, loaded weight, and the like.
  • the third information is the amount of energy consumed when the moving body is driven at a constant speed or acceleration / deceleration while receiving air resistance, road resistance, and load resistance. More specifically, the third information is consumed when the moving body travels at a constant speed or acceleration / deceleration, for example, air resistance generated in the moving body due to a head wind or road surface resistance received from a road that is not paved. It is the amount of energy.
  • the current information acquisition unit 101 acquires information on the speed at which the moving body travels along with the actual energy amount.
  • the information regarding speed is, for example, speed and acceleration.
  • the information regarding the speed may be an average speed and an average acceleration within a predetermined time.
  • the predetermined time is a time interval at regular intervals, for example, per unit time.
  • the current information acquisition unit 101 may acquire information on the inclination of the moving body together with the actual energy amount.
  • the information regarding the inclination is, for example, an inclination of a moving body traveling on a road having a road gradient with respect to a road having a road gradient close to zero.
  • the current information acquisition unit 101 may acquire information regarding speed and information regarding inclination managed by the ECU via the CAN.
  • the setting unit 102 sets information related to the moving body constituting this factor for each of a plurality of factors that increase or decrease the energy amount of the moving body.
  • the information regarding the moving body is, for example, vehicle information, information related to the vehicle information, and the like.
  • the vehicle information is, for example, the displacement, weight, vehicle width, vehicle height, efficiency, air resistance, rolling resistance, etc. of the moving body.
  • the information related to the vehicle information is information calculated based on, for example, any one or more information of the vehicle information described above.
  • the setting unit 102 may use, for example, information related to a moving body provided by a manufacturer as initial information.
  • the estimation unit 103 estimates the amount of energy consumed by the traveling of the moving body (hereinafter referred to as “reference energy amount”) based on the information regarding the moving body at the reference time point. Specifically, the estimation unit 103 estimates the reference energy amount based on information on the moving object set by the setting unit 102.
  • the reference time point is information on the past time that is a reference for acquiring the current state of the moving body.
  • the reference time point may be information related to the time related to the time point when the current information acquisition unit 101 acquires the actual energy amount.
  • the time-related information includes time, date, season, period when the climate has changed, period of the event, and the like.
  • the reference time point may be, for example, the time point when the current information acquisition unit 101 acquires the actual energy amount, or the time when the mobile object is currently running on the previous day or one year ago. It may be the same time, the day when the wind direction and the wind speed are the same, or when the current traveling time of the moving body is the same season such as summer, for example 7 years ago It may be the same period from January 1st to August 31st, or if the mobile vehicle is currently running at the time of traffic jam during the Bon holiday, the number of traffic during the Bon holiday during several years ago It may be a day.
  • the estimation unit 103 may calculate an average value of the reference energy amount based on information on the mobile object at the plurality of reference time points. Thereby, for example, it is possible to estimate an average reference energy amount at a plurality of reference points having similar seasons and climates.
  • the estimation unit 103 increases or decreases the energy amount of the moving object using the energy consumption estimation formula shown in the following formula (1) based on the speed and acceleration acquired by the current information acquisition unit 101.
  • a reference energy amount is estimated for each of a plurality of factors.
  • the first term on the right side corresponds to the first information
  • the second term on the right side corresponds to the second information
  • the third term on the right side corresponds to the third information.
  • the coefficient k 1 , coefficient k 2 , and coefficient k 3 (hereinafter referred to as “coefficient k n ”) for each term on the right side of the above-described equation (1) correspond to information related to vehicle information. That is, the estimation unit 103 uses the information regarding the moving object set by the setting unit 102 as the coefficient of the above-described equation (1).
  • time (h) and second (s) are mixedly used as a unit representing time, but this uses speed (km / h) as a unit of speed. This is because the second (s) is adopted as the unit time for estimating the reference energy amount. When it is desired to align these units, calculation may be appropriately performed on each numerical value.
  • the estimation unit 103 may estimate the reference energy amount based on information on the moving object recorded by the recording unit 105.
  • the estimation part 103 uses the information regarding the mobile body of the past predetermined time in the same time as the time at which the mobile body is currently traveling as the information regarding the mobile body at the reference time.
  • the estimation unit 103 uses information on the moving body at the time when the amount of change is calculated by the calculation unit 104 after the moving body is prepared as information on the moving body at the reference time. Specifically, the estimation unit 103 is based on, for example, information on the moving body after tire replacement or battery replacement, or information on the moving body after attachment or removal of attached equipment is performed. Used as information about the moving object at the time.
  • the estimation part 103 may estimate the information regarding the mobile body which comprises the said factor for every several factor which increases / decreases the energy amount of a mobile body based on real energy amount.
  • the estimation unit 103 uses a multiple regression analysis method using the energy consumption estimation formula shown in the above formula (1) based on the information on the actual energy amount and speed acquired by the current information acquisition unit 101. by and regression analysis to estimate the coefficient k n based on the actual amount of energy.
  • the calculation unit 104 calculates a change amount of the actual energy amount with respect to the reference energy amount (hereinafter referred to as “change amount of the actual energy amount”) for each of a plurality of factors that increase or decrease the energy amount of the moving object. Specifically, the calculation unit 104 uses the first information, the second information, and the third information (hereinafter referred to as “nth information”) as a plurality of factors that increase or decrease the energy amount of the moving object. The amount of change is calculated.
  • calculating unit 104 past the coefficient k n which is recorded in a predetermined time by the recording unit 105, the reference and as the coefficient k n of time comprising, calculating a change amount of the estimated coefficients k n by estimator 103.
  • the state change of the moving body is, for example, a change in tire state, a change in air resistance, a change in efficiency, a change in vehicle weight, a change in wind direction or wind speed, and the like.
  • the cause of the change in the tire state includes a state in which the road surface resistance is changed, such as a change in the tire type and tire size such as puncture, air pressure drop, and studless.
  • the cause of the change in the air resistance of the moving body includes, for example, a change in the outer shape of the moving body due to an accessory attached to the outside of the moving body, such as a carrier.
  • a cause of the change in efficiency for example, activation of an air conditioner or an audio can be mentioned.
  • the cause of the change in vehicle weight is, for example, an increase or decrease in luggage or the number of passengers.
  • the calculation unit 104 may calculate the amount of change in the weight of the moving object. At this time, the calculation unit 104 uses the vehicle weight recorded at a predetermined past time by the recording unit 105 as the vehicle weight at the reference time. As a result, for example, when the amount of energy consumed by the moving body greatly changes depending on the loading weight such as a truck, it is possible to clearly determine whether the cause of the change in the state of the moving body is the loading weight of the moving body. .
  • the recording unit 105 records information on the moving object that is updated based on the change amount. Specifically, the recording unit 105 records information on the moving body corrected based on the amount of change calculated by the calculation unit 104. Further, the recording unit 105 records information on the moving body at the time when the change amount is calculated by the calculating unit 104 after the moving body is prepared. That is, the recording unit 105 records information on the moving body reflecting the latest traveling state of the moving body and the traveling state after maintenance.
  • the recording unit 105 records information on the time at which the amount of change is calculated by the calculation unit 104 together with information on the moving object. Specifically, the recording unit 105 records information about the moving body in association with information about the time at which the amount of change is calculated by the calculation unit 104 after the moving body is prepared.
  • the recording unit 105 may correct and record information on the moving body based on information input by a user from an input unit (not shown), for example.
  • the information input by the user is, for example, the presence / absence of interior decorations supplied with electric power from the battery of the moving body, the presence / absence of attached equipment attached to the outside of the moving body.
  • the notification unit 106 notifies the current state of the moving body with respect to the state of the moving body at the reference time based on the amount of change calculated by the calculation unit 104. Specifically, the notification unit 106 notifies each change amount of the nth information (or coefficient k n ). Further, the notification unit 106 notifies the cause of a possible state change of the main moving body based on the amount of change in the nth information (or coefficient k n ).
  • the notification unit 106 when the amount of change in the first information (or coefficient k 1 ) increases, the notification unit 106 notifies the main causes of air conditioners, use of audio, power system electrical troubles, and the like. Further, for example, when the change amount of the second information (or coefficient k 2 ) increases, the notification unit 106 notifies the main cause of an increase in the vehicle weight due to an increase in the number of passengers, loaded luggage, and the like. For example, when the amount of change in the third information (or coefficient k 3 ) increases, the notification unit 106 notifies the main cause of a decrease in tire air pressure or the like.
  • the notification unit 106 may be notified of the cause of the state change of the main moving body can be envisaged.
  • the notification unit 106 mainly uses the air conditioner and audio.
  • the increase rate of the change amount of the first information (or coefficient k 1 ) is equal to or greater than a preset threshold value, a power system electrical trouble or the like is reported as a main cause.
  • FIG. 2 is a flowchart showing a procedure of mobile body information acquisition processing by the mobile body information acquisition apparatus.
  • the mobile object information acquisition apparatus 100 acquires the actual energy amount of the mobile object by the current information acquisition unit 101 (step S201).
  • the mobile body information acquisition apparatus 100 sets the information regarding a mobile body to each of the some factor which increases / decreases the energy amount of a mobile body by the setting part 102 (step S202).
  • the mobile body information acquisition apparatus 100 estimates the reference energy amount by the estimation unit 103 (step S203).
  • the mobile body information acquisition apparatus 100 uses the calculation unit 104 to change the amount of change in the actual energy amount relative to the reference energy amount (hereinafter referred to as “change amount of the actual energy amount”) to the first information and the second information. Then, it is calculated for each third information (nth information) (step S204). Then, the moving body information acquisition apparatus 100 records the amount of change calculated for each nth information by the recording unit 105 (step S205). Next, the mobile body information acquisition apparatus 100 notifies the change amount calculated for each nth information (step S206), and ends the processing according to this flowchart.
  • the mobile body information acquisition apparatus 100 may provide or acquire the amount of change in the actual energy amount as probe traffic information. Further, the moving body information acquisition device 100, in step S204, may be calculated change amount of the coefficient k n. Moreover, the mobile body information acquisition apparatus 100 may alert
  • the mobile body information acquisition apparatus 100 calculates the amount of change in the actual energy amount for each of a plurality of factors that increase or decrease the energy amount of the mobile body, and moves based on the amount of change. Get body condition.
  • the mobile body information acquisition apparatus 100 since the amount of change is calculated for each of a plurality of factors that increase or decrease the amount of energy of the mobile body, main factors that can be assumed for each of the factors that have changed the amount of change. It is possible to determine the cause of the change in the state of the moving body and the cause of the change in the running state. Specifically, for example, when the change amount of the first information changes, the mobile body information acquisition apparatus 100 can notify only an abnormality or failure that is likely to occur when the mobile body is stopped. Moreover, since the mobile body information acquisition apparatus 100 alert
  • the mobile body information acquisition apparatus 100 estimates a reference energy amount based on information about the mobile body at a reference time point, and calculates a change amount of the actual energy amount with respect to the reference energy amount. For this reason, according to the mobile body information acquisition apparatus 100, the state change of the mobile body from the time used as this reference
  • the mobile body information acquisition apparatus 100 notifies the amount of change in the weight of the mobile body. For this reason, according to the mobile object information acquisition apparatus 100, for example, when the amount of energy consumed by the mobile object greatly changes depending on the load weight such as a truck, is the cause of the change in the state of the mobile object the load weight of the mobile object? It can be clearly determined whether or not.
  • the moving body information acquisition apparatus 100 acquires the amount of change in the actual energy amount as the probe information, for example, the traveling resistance of a plurality of moving bodies at a point where the moving body travels changes in a constant direction as a whole. In this case, it can be determined that the moving body is affected by the wind.
  • FIG. 3 is a block diagram illustrating a hardware configuration of the navigation apparatus.
  • the navigation apparatus 300 includes a CPU 301, ROM 302, RAM 303, magnetic disk drive 304, magnetic disk 305, optical disk drive 306, optical disk 307, audio I / F (interface) 308, microphone 309, speaker 310, input device 311, A video I / F 312, a display 313, a camera 314, a communication I / F 315, a GPS unit 316, and various sensors 317 are provided.
  • Each component 301 to 317 is connected by a bus 320.
  • the CPU 301 governs overall control of the navigation device 300.
  • the ROM 302 records programs such as a boot program and a data update program.
  • the RAM 303 is used as a work area for the CPU 301. That is, the CPU 301 controls the entire navigation device 300 by executing various programs recorded in the ROM 302 while using the RAM 303 as a work area.
  • the magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301.
  • the magnetic disk 305 records data written under the control of the magnetic disk drive 304.
  • an HD hard disk
  • FD flexible disk
  • the optical disk drive 306 controls reading / writing of data with respect to the optical disk 307 according to the control of the CPU 301.
  • the optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306.
  • a writable recording medium can be used as the optical disc 307.
  • an MO, a memory card, or the like can be used as a removable recording medium.
  • Examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data, information on the vehicle, information on the speed of the vehicle, the amount of energy consumed and recovered as the vehicle travels (actual energy amount), and a standard. comprising the amount of energy consumed and recovered by traveling on the basis of information about the vehicle at the time (the reference energy content), such as the coefficient k n based on the actual amount of energy and the like.
  • the map data is used to notify the vehicle status acquired by the vehicle information acquisition process in the car navigation system, and links the background data representing the features (features) such as buildings, rivers, and the ground surface, and the road shape.
  • Road shape data represented by nodes and nodes.
  • the voice I / F 308 is connected to a microphone 309 for voice input and a speaker 310 for voice output.
  • the sound received by the microphone 309 is A / D converted in the sound I / F 308.
  • the microphone 309 is installed in a dashboard portion of a vehicle, and the number thereof may be one or more. From the speaker 310, a sound obtained by D / A converting a predetermined sound signal in the sound I / F 308 is output.
  • the input device 311 includes a remote controller, a keyboard, a touch panel, and the like provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like.
  • the input device 311 may be realized by any one form of a remote control, a keyboard, and a touch panel, but can also be realized by a plurality of forms.
  • the video I / F 312 is connected to the display 313. Specifically, the video I / F 312 is output from, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC for controlling the display 313 based on the image data to be processed.
  • a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller.
  • VRAM Video RAM
  • the display 313 displays icons, cursors, menus, windows, or various data such as characters and images.
  • a TFT liquid crystal display, an organic EL display, or the like can be used as the display 313, for example.
  • the camera 314 captures images inside or outside the vehicle.
  • the image may be either a still image or a moving image.
  • the outside of the vehicle is photographed by the camera 314, and the photographed image is analyzed by the CPU 301, or a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. Or output to
  • the communication I / F 315 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301.
  • the communication network functioning as a network includes a public line network, a mobile phone network, DSRC (Dedicated Short Range Communication), LAN, WAN, and the like.
  • the communication I / F 315 is, for example, a public line connection module, an ETC (non-stop automatic fee payment system) unit, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, or the like.
  • the GPS unit 316 receives radio waves from GPS satellites and outputs information indicating the current position of the vehicle.
  • the output information of the GPS unit 316 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 317 described later.
  • the information indicating the current position is information for specifying one point on the map data such as latitude / longitude and altitude.
  • the various sensors 317 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor.
  • the output values of the various sensors 317 are used by the CPU 301 to calculate the current position of the vehicle and the amount of change in speed and direction.
  • the current information acquisition unit 101, the setting unit 102, the estimation unit 103, the calculation unit 104, the recording unit 105, and the notification unit 106 of the mobile body information acquisition device 100 illustrated in FIG. 1 are the ROM 302, RAM 303, and magnetic field in the navigation device 300 described above.
  • the CPU 301 executes a predetermined program using programs and data recorded on the disk 305, the optical disk 307, etc., and controls each part in the navigation device 300, thereby realizing its function.
  • the navigation device 300 estimates the amount of energy per unit time during travel of a vehicle on which the vehicle's own device is mounted. Moreover, the navigation apparatus 300 estimates an energy saving amount based on the estimated energy amount. In addition, the navigation device 300 estimates vehicle information by a multiple regression analysis method or a regression analysis method based on, for example, the actual energy amount, speed, and acceleration acquired via the CAN.
  • the navigation apparatus 300 estimates the amount of energy consumed by the vehicle using the following equation (1).
  • the first term on the right side is the amount of energy consumed by the equipment provided in the vehicle (first information)
  • the second term on the right side is the amount of energy consumed and recovered during acceleration / deceleration (the first amount).
  • the second term on the right side is the amount of energy consumed during traveling at a constant speed (third information).
  • the coefficient k 1 , coefficient k 2 , and coefficient k 3 (coefficient k n ) relating to each term on the right side of the above-described equation (1) are vehicle information.
  • time (h) and second (s) are mixedly used as units representing time, but this employs speed (km / h) as a unit of speed, and vehicle This is because the second (s) is adopted as the unit time for estimating the amount of energy consumed by.
  • speed km / h
  • vehicle This is because the second (s) is adopted as the unit time for estimating the amount of energy consumed by.
  • the navigation device 300 calculates a change amount of the actual energy amount with respect to the reference energy amount for each of a plurality of factors that increase or decrease the energy amount of the vehicle, and becomes a reference time point based on the change of the change amount.
  • the state of the moving body from is acquired and notified. The details of the moving body information acquisition process will be described below.
  • FIG. 4 is a flowchart showing a procedure of mobile object information acquisition processing by the navigation device.
  • the navigation apparatus 300 acquires the speed and acceleration of the vehicle using, for example, various sensors 317 (step S402).
  • the navigation device 300, the storage device (magnetic disk 305, optical disk 307) vehicle information stored in (the coefficient k n: n 1 ⁇ 3 ) reading out (step S403).
  • the navigation device 300 determines whether or not the vehicle is in a stopped state (step S404).
  • the navigation apparatus 300 estimates a reference energy amount using the consumption energy estimation formula shown in the above-described formula (1) (step S405).
  • the reference energy amount estimated in step S405 is first information that is consumed when the vehicle is stopped.
  • the navigation device 300 calculates a change amount (a change amount of the actual energy amount) of the actual energy amount acquired in step S401 with respect to the reference energy amount estimated in step S405 (step S406).
  • a change amount (a change amount of the actual energy amount) of the actual energy amount acquired in step S401 with respect to the reference energy amount estimated in step S405 (step S406).
  • step S404 Since it is determined that the vehicle is stopped in Yes, in this case, the actual energy amount acquired in step S401 is the first information, and the change amount calculated in step S406 is the first information. The amount of change.
  • the navigation device 300 writes the change amount of the nth information calculated in step S406 in the storage device (step S407).
  • the navigation apparatus 300 determines whether or not the amount of change in the nth information has changed (step S408). For example, the navigation device 300 may determine that the amount of change has changed when the amount of change in the nth information is not zero, or change when the amount of change in the nth information is greater than or equal to a preset threshold. It may be determined that the amount has changed.
  • step S408: Yes When the change amount of the nth information changes (step S408: Yes), the navigation device 300 notifies the change of the change amount of the nth information from the speaker 310, for example, by the voice I / F 308 (step S409). Next, the navigation apparatus 300 displays the amount of change in the nth information, for example, on the display 313 (step S410), and ends the processing according to this flowchart. If the change amount of the nth information has not changed (step S408: No), the processing according to this flowchart is terminated as it is.
  • step S404 determines whether or not the vehicle is in a traveling state with acceleration / deceleration (step S411). If the vehicle is traveling in acceleration / deceleration (step S411: Yes), the navigation apparatus 300 estimates the reference energy amount (step S412) and proceeds to step S406 in the same manner as the process of step S405.
  • the reference energy amount estimated in step S412 is second information that is consumed and recovered during acceleration / deceleration. In this case, the actual energy amount acquired in step S401 is second information that is consumed and recovered during acceleration / deceleration. Then, the navigation device 300 performs the processing from step S406 to step S410 as described above, and ends the processing according to this flowchart.
  • step S411 when the vehicle is not in a traveling state at acceleration / deceleration (step S411: No), the navigation apparatus 300 determines whether the vehicle is in a traveling state at a constant speed (step S413).
  • step S413: Yes the navigation apparatus 300 estimates the reference energy amount (step S414), and proceeds to step S406, as in the process of step S405.
  • the reference energy amount estimated in step S414 is third information consumed when traveling at a constant speed. In this case, the actual energy amount acquired in step S401 is third information. Then, the navigation device 300 performs the processing from step S406 to step S410 as described above, and ends the processing according to this flowchart.
  • step S413 when the vehicle is not in a traveling state at a constant speed (step S413: No), the navigation apparatus 300 ends the processing according to this flowchart without performing the processing of steps S406 to S410.
  • the navigation apparatus 300 may display information on the vehicle state based on the change amount of the nth information together with the change amount of the nth information.
  • the information on the vehicle state based on the change amount of the n-th information is, for example, a warning or an instruction to the user such as “running resistance is increasing”, “please check tire pressure”.
  • the navigation device 300 may notify the warning or instruction from the speaker 310 by the audio I / F 308.
  • the navigation device 300 repeatedly performs the above-described moving body information acquisition process while the vehicle is powered on. That is, the navigation device 300 first calculates the amount of change in the first information until the vehicle starts after the vehicle is turned on. Here, when the amount of change in the first information changes, The change amount of the first information is notified. Then, the navigation device 300 continues to calculate the amount of change in the nth information at any point of time when the vehicle is stopped (such as waiting for a signal), at the time of acceleration / deceleration, or at a constant speed during traveling from the departure point to the destination point. Thus, when the change amount of the nth information changes, the change amount of the nth information is notified.
  • the ON state of the vehicle indicates a state in which a component (not shown) for moving a motor that is a driving source of the vehicle is operable.
  • the component for moving the motor that is the driving source of the vehicle is, for example, a circuit that supplies energy to the motor with an energy amount corresponding to the depression amount of the accelerator pedal by the driver.
  • the vehicle when the vehicle is powered on, the vehicle can be moved forward or backward by depressing the accelerator pedal by the driver, and the vehicle is stopped by the foot brake or parking brake. It is.
  • the forward movement of the vehicle means that the driver does not depress the accelerator pedal after the brake pedal is released or the parking brake is released. It may be to move forward.
  • the state where the shift position is neutral is also included in the state where the components for moving the motor that is the drive source of the vehicle can be operated.
  • the navigation device 300 uses the reference energy amount that is estimated from the previous reference energy amount (nth information) that has been estimated at the time of the previous travel and stored in the storage device as the reference energy amount.
  • the change amount of the nth information may be calculated as the reference energy amount at the time point.
  • the reference time point may be information regarding the time related to the time point when the actual energy amount is acquired in step S401.
  • the coefficient k n a coefficient based on the actual amount of energy.
  • FIG. 5 is a flowchart showing a procedure of mobile object information acquisition processing by the navigation device.
  • the navigation device 300 first acquires the actual energy amount managed by the ECU via the CAN (step S501).
  • the navigation apparatus 300 acquires the speed and acceleration of the vehicle using, for example, various sensors 317 (step S502).
  • the navigation apparatus 300 determines whether or not the vehicle is in a stopped state (step S503).
  • the navigation apparatus 300 uses the actual energy amount, speed, and acceleration acquired in steps S501 and S502 to calculate the consumed energy estimation formula shown in the above-described formula (1).
  • the coefficient k 1 is estimated by multiple regression analysis or regression analysis (step S504).
  • the coefficient k 1 estimated in step S504 is a coefficient based on the amount of energy consumed when stopping.
  • Step S503 Since the vehicle in Yes is determined to be stopped, in this case, the navigation device 300 reads the past coefficient k 1.
  • the navigation device 300 calculates the coefficient k n estimated in step S504, the amount of change for the coefficients k n read out in step S505 (change of coefficient k n) (step S506). In this case, the change amount of the coefficient k 1 is calculated.
  • the navigation device 300 writes the variation of the coefficient k n calculated in step S506 into the storage device (step S507). Here, the navigation device 300 may write the coefficients k n with the variation of the coefficient k n.
  • the navigation device 300 determines whether the change amount of the coefficient k n is changed (step S508).
  • step S508: Yes the navigation device 300, for example, from the speaker 310 by voice I / F308, notifying that the variation of the coefficient k n is changed (step S509).
  • the navigation apparatus 300 for example, a display 313, and displays the variation of the coefficient k n (step S510), and ends the process of the flowchart. If the change amount of the coefficient kn has not changed (step S508: No), the processing according to this flowchart is terminated as it is.
  • step S503 determines whether or not the vehicle is in a traveling state with acceleration / deceleration (step S511). If the vehicle is in the traveling state of the acceleration and deceleration (Step S511: Yes), the navigation device 300, as in step S504, and estimates the coefficient k 2 (step S512), the process proceeds to step S505.
  • the coefficient k 2 estimated in step S512 is a coefficient based on the amount of energy consumed and recovered during acceleration / deceleration. Then, the navigation device 300 performs the processing of steps S505 to S510 as described above, and ends the processing according to this flowchart.
  • step S511 when the vehicle is not in a traveling state with acceleration / deceleration (step S511: No), the navigation device 300 determines whether or not the vehicle is in a traveling state at a constant speed (step S513). If the vehicle is in the traveling state at a constant speed (step S513: Yes), the navigation device 300, as in step S504, and estimates the coefficient k 3 (step S514), the process proceeds to step S505.
  • the coefficient k 3 estimated in step S514 is a coefficient based on the amount of energy consumed when traveling at a constant speed. Then, the navigation device 300 performs the processing of steps S505 to S510 as described above, and ends the processing according to this flowchart.
  • step S513 when the vehicle is not in a traveling state at a constant speed (step S513: No), the navigation apparatus 300 ends the processing according to this flowchart without performing the processing of steps S505 to S510.
  • the navigation device 300 repeatedly performs the above-described mobile body information acquisition process while the vehicle is powered on, as in the mobile body information acquisition process shown in FIG. Furthermore, criteria for whether the amount of change is changed coefficient k n may be the same criterion and the moving body information obtaining process shown in FIG. 4 described above. Further, in step S510, for example, the information displayed on the display 313 may display the nth information and the change amount of the nth information as in the mobile body information acquisition process shown in FIG. 4 (see step S410). , instead of the n-th information, may be displayed variation coefficient k n and coefficient k n.
  • the navigation apparatus 300 uses the energy consumption estimation formula shown in the above equation (1) based on the actual energy amount, speed, and acceleration acquired in steps S501 and S502, and performs multiple regression analysis.
  • the coefficients k 1 to k 3 are estimated by the method or the regression analysis method (step S503 ′). Thereafter, the process proceeds to reading of past coefficients in step S505. Thereby, although calculation of the coefficients becomes complicated, all the coefficients k 1 to k 3 can be estimated regardless of the running state of the vehicle.
  • the navigation device 300 as a specific vehicle information indicating the coefficient k n, estimating the vehicle weight, the estimated vehicle weight, the change amount with respect to the vehicle weight of the past predetermined time (hereinafter, the change of the "vehicle weight The amount of change in the vehicle weight may be notified when the amount changes).
  • FIG. 6 is a flowchart showing another procedure of the moving body information acquisition process by the navigation device.
  • the navigation device 300 first acquires the actual energy amount managed by the ECU via the CAN (step S601).
  • the navigation apparatus 300 acquires the speed and acceleration of the vehicle using, for example, various sensors 317 (step S602).
  • the navigation apparatus 300 reads the vehicle information memorize
  • the navigation apparatus 300 estimates the current vehicle weight by the multiple regression analysis method or the regression analysis method using the energy consumption estimation formula shown in the above-described formula (1) (step S604). Specifically, it is possible to estimate the vehicle weight by estimating the coefficient k 2.
  • the navigation device 300 reads the past vehicle weight at the reference time from the past vehicle weights estimated by the previous travel and stored in the storage device, for example (step S605).
  • the navigation apparatus 300 calculates a change amount (a change amount of the vehicle weight) of the vehicle weight estimated in step S604 with respect to the vehicle weight read in step S605 (step S606).
  • the navigation device 300 writes the change amount of the vehicle weight calculated in step S606 in the storage device (step S607).
  • the navigation apparatus 300 determines whether or not the amount of change in vehicle weight has changed (step S608).
  • step S608: Yes the navigation device 300 notifies the change of the change amount of the vehicle weight from the speaker 310 by, for example, the audio I / F 308 (step S609).
  • the navigation apparatus 300 displays a warning or an instruction corresponding to the actual energy amount, the change amount of the vehicle weight, the change amount of the vehicle weight on the display 313 (step S610), and ends the processing according to this flowchart. Further, when the change amount of the vehicle weight has not changed (step S608: No), the processing according to this flowchart is ended as it is.
  • the navigation apparatus 300 repeatedly performs the above-described mobile body information acquisition process while the vehicle is powered on, as in the mobile body information acquisition process shown in FIG. Further, the determination criterion as to whether or not the amount of change in the vehicle weight has changed may be the same determination criterion as the above-described moving body information acquisition process shown in FIG.
  • the navigation device 300 gives a warning or instruction to the user based on the amount of change in the vehicle weight.
  • this processing it can be determined whether the actual energy amount of the vehicle has decreased due to the load weight or whether the actual energy amount of the vehicle has decreased due to the driving skill of the driver.
  • the navigation device 300 records the amount of change in the vehicle weight and the actual energy amount, the driver can save by comparing these information with the energy amount normally consumed by the vehicle. By converting the amount of energy into, for example, an amount of money, the amount of money saved can be grasped.
  • FIG. 7 is an explanatory diagram illustrating an example of a display screen displayed on the display of the navigation device.
  • the display 700 has a first meter 701 that displays the amount of energy (basic energy) consumed when the vehicle is stopped, and energy consumed and recovered by running the vehicle during acceleration and deceleration.
  • a second meter 702 that displays the amount (acceleration / deceleration energy), a third meter 703 that displays the amount of energy consumed by the vehicle traveling at a constant speed (constant traveling energy), and the amount of change in the first information (k a fourth meter 704 for displaying one change rate), the display and the 5 meter 705 for displaying the amount of change in the second information (k 2 change rate), the change amount of the third information (k 3 rate of change)
  • a 6 meter 706 and a message window 720 for displaying warnings and instructions to the user are displayed.
  • This is an example of a layout for displaying n-th information (n 1 to 3), the amount of change thereof, and the like on a display. That is, the process shown in step S410 of FIG. 4 has been performed.
  • the navigation device 300 displays, for example, the meters 701 to 706 and the message window 720 on the display 700.
  • the navigation device 300 may continue to display the meters 701 to 706 and the message window 720 together with the map data on the display 700, or displays a “close” button (not shown) on the display 700, The display of the meter or the like may be closed by the user.
  • the navigation apparatus 300 may display the meters 701 to 706 and the message window 720 on the display 700 only when the vehicle stops due to a signal waiting or the like.
  • the navigation device 300 records, for example, a flag indicating that it is not displayed on the display 700 in association with the change amount of the nth information, and the change amount flagged when the vehicle stops. May be displayed together on the display 700.
  • the amount of change in the actual energy amount is calculated for each of a plurality of factors that increase or decrease the amount of energy of the vehicle, and the state of the vehicle based on the amount of change is acquired.
  • the amount of change is calculated for each of a plurality of factors that increase or decrease the amount of energy of the vehicle. Therefore, the main vehicle state change that can be assumed for each factor that has changed the amount of change. It is possible to determine the cause of the vehicle and the cause of the running state change.
  • the navigation device 300 estimates the reference energy amount based on the information about the vehicle at the reference time point, and calculates the change amount of the actual energy amount with respect to the reference energy amount. For this reason, according to the navigation apparatus 300, the state change of the vehicle from the reference
  • the navigation device 300 notifies the amount of change in the weight of the vehicle. Therefore, according to the navigation device 300, for example, when the amount of energy consumed by the vehicle greatly varies depending on the loading weight such as a truck, it is clearly determined whether or not the cause of the change in the state of the vehicle is the loading weight of the vehicle. can do.
  • the navigation device 300 acquires the amount of change in the actual energy amount as the probe information, for example, when the traveling resistance of a plurality of vehicles at a point where the vehicle travels changes in a certain direction as a whole, It can be determined that the vehicle is affected by the wind.
  • the mobile body information acquisition method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation.
  • This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer.
  • the program may be a transmission medium that can be distributed via a network such as the Internet.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
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Abstract

La présente invention concerne un dispositif d'acquisition d'informations sur un corps mobile (100) qui acquiert l'état d'un corps mobile. Une unité d'acquisition d'informations actuelles (101) acquiert une quantité d'énergie (quantité d'énergie réelle) consommée lors du déplacement par le corps mobile. Une unité de réglage (102) définit les informations liées au corps mobile pour chaque facteur d'une pluralité de facteurs qui augmentent ou réduisent la quantité d'énergie du corps mobile et qui sont les causes de ces facteurs. Une unité d'estimation (103) estime une quantité d'énergie (quantité d'énergie de référence) consommée par le déplacement du corps mobile en fonction des informations liées au corps mobile à un point de référence dans le temps. Un calculateur (104) calcule la quantité de modification de la quantité d'énergie réelle par rapport à la quantité d'énergie de référence pour chaque facteur.
PCT/JP2011/074874 2011-10-27 2011-10-27 Dispositif d'acquisition d'informations sur un corps mobile, procédé d'acquisition d'informations sur un corps mobile, programme d'acquisition d'informations sur un corps mobile et support d'enregistrement WO2013061456A1 (fr)

Priority Applications (2)

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JP2013540588A JP5663098B2 (ja) 2011-10-27 2011-10-27 移動体情報取得装置、移動体情報取得方法、移動体情報取得プログラムおよび記録媒体
PCT/JP2011/074874 WO2013061456A1 (fr) 2011-10-27 2011-10-27 Dispositif d'acquisition d'informations sur un corps mobile, procédé d'acquisition d'informations sur un corps mobile, programme d'acquisition d'informations sur un corps mobile et support d'enregistrement

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PCT/JP2011/074874 WO2013061456A1 (fr) 2011-10-27 2011-10-27 Dispositif d'acquisition d'informations sur un corps mobile, procédé d'acquisition d'informations sur un corps mobile, programme d'acquisition d'informations sur un corps mobile et support d'enregistrement

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006046149A (ja) * 2004-08-03 2006-02-16 Yazaki Corp 運転支援装置
JP2010000884A (ja) * 2008-06-19 2010-01-07 Denso Corp ハイブリッド車両の制御装置
JP2010132241A (ja) * 2008-12-08 2010-06-17 Aisin Aw Co Ltd 走行支援装置、走行支援方法及びコンピュータプログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006046149A (ja) * 2004-08-03 2006-02-16 Yazaki Corp 運転支援装置
JP2010000884A (ja) * 2008-06-19 2010-01-07 Denso Corp ハイブリッド車両の制御装置
JP2010132241A (ja) * 2008-12-08 2010-06-17 Aisin Aw Co Ltd 走行支援装置、走行支援方法及びコンピュータプログラム

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