WO2014046071A1 - Dispositif embarqué - Google Patents

Dispositif embarqué Download PDF

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Publication number
WO2014046071A1
WO2014046071A1 PCT/JP2013/074982 JP2013074982W WO2014046071A1 WO 2014046071 A1 WO2014046071 A1 WO 2014046071A1 JP 2013074982 W JP2013074982 W JP 2013074982W WO 2014046071 A1 WO2014046071 A1 WO 2014046071A1
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WO
WIPO (PCT)
Prior art keywords
auxiliary battery
battery
distance
vehicle device
auxiliary
Prior art date
Application number
PCT/JP2013/074982
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English (en)
Japanese (ja)
Inventor
宮澤　篤史
長山　森
佳子 塚田
Original Assignee
日産自動車株式会社
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Application filed by 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to JP2014536849A priority Critical patent/JP5896035B2/ja
Publication of WO2014046071A1 publication Critical patent/WO2014046071A1/fr

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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
    • 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
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B60L2210/12—Buck converters
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B60L2210/14—Boost converters
    • 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
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • 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
    • 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
    • B60L2250/16—Driver interactions by display
    • 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
    • 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
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/54—Energy consumption estimation
    • 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
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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

  • the present invention relates to an in-vehicle device mounted on a vehicle including a main battery that supplies electric power to a motor and an auxiliary battery that supplies electric power to the main battery.
  • Patent Document 1 Although the technique of the above-mentioned Patent Document 1 is configured to be switched between a main battery and an attachment type battery, it is necessary for the occupant himself to determine the switching timing from the main battery to the attachment type battery. There was a problem that electric shortage occurred inside. Furthermore, in the technique of Patent Document 1 described above, when a battery that takes a certain amount of time to start up is used as the attachment type battery, after the electric shortage occurs, before the travel is started again by the attachment type battery, There is also a problem that it takes a certain amount of time.
  • the problem to be solved by the present invention is to effectively prevent an electric shortage in a vehicle including a main battery that supplies electric power to a motor and an auxiliary battery that supplies electric power to the main battery. .
  • the present invention relates to a vehicle including a main battery that supplies electric power to a motor and an auxiliary battery that supplies electric power to the main battery, a travelable distance by the main battery, and a distance to a charging facility existing near the position of the host vehicle. If the possible travel distance is less than the distance to the charging facility in the vicinity of the host vehicle position, the above-mentioned problem is presented by prompting the occupant to start the auxiliary battery. To solve.
  • the presentation for prompting the passenger to start the auxiliary battery is performed.
  • the auxiliary battery can be appropriately used in a scene where the auxiliary battery needs to be activated, and thus it is possible to effectively prevent the lack of electric power.
  • FIG. 1 is a configuration diagram illustrating an electric vehicle control system according to the present embodiment.
  • FIG. 2 is a diagram schematically illustrating a relationship among the travelable distance D bat , the charging facility distance D sta, and the presentation timing for prompting the activation determination of the auxiliary battery 50 in the first embodiment.
  • FIG. 3 is a flowchart showing processing executed in the first embodiment.
  • FIG. 4 schematically shows the relationship among the travelable distance D bat , the charging facility distance D sta , the correction insufficient distance D cor, and the presentation timing for prompting the activation determination of the auxiliary battery 50 in the second embodiment.
  • FIG. FIG. 5 is a configuration diagram illustrating a control system for an electric vehicle according to another embodiment.
  • FIG. 1 is a configuration diagram illustrating an electric vehicle control system according to the present embodiment.
  • the control system for an electric vehicle includes a main battery 10, an inverter 20, a vehicle drive motor 30, a DC / DC converter 40, an auxiliary battery 50, and a navigation device 60. And an in-vehicle device 100.
  • the main battery 10 is composed of a plurality of secondary battery cells connected in series, and is electrically connected to the vehicle drive motor 30 via the inverter 20.
  • the DC power output from the main battery 10 is converted into an AC current by the inverter 20 and supplied to the vehicle drive motor 30.
  • the travel energy of the host vehicle is reversely converted into electrical energy via the vehicle drive motor 30 and the inverter 21, the main battery 10 is charged, and the vehicle is subjected to regenerative braking. It is like that.
  • the secondary battery cell constituting the main battery 10 is not particularly limited, and various secondary batteries such as a lithium ion secondary battery, a nickel hydride secondary battery, and a nickel cadmium battery can be cited.
  • the auxiliary battery 50 is a spare battery for charging the main battery 10, and is electrically connected to the main battery 10 via the DC / DC converter 40.
  • the auxiliary battery 50 is not particularly limited, and various primary batteries, secondary batteries, and the like can be used. However, in the present embodiment, a battery having at least one of output and capacity smaller than that of the main battery 10 is used.
  • a battery that operates by supplying a liquid such as an electrolytic solution or an oxidized fuel into the battery system.
  • a battery that operates by injecting an alkaline aqueous solution (electrolyte) such as sodium hydroxide or potassium hydroxide into the battery system during use, or methanol (oxidized fuel) during use.
  • Is injected into the battery system and direct methanol fuel cells can be used.
  • a battery that operates by supplying a liquid such as an electrolyte or oxidizing fuel into the battery system is usually a unit. Since the energy density per volume is high, and the charge capacity to the main battery 10 is also large, it can be suitably used.
  • the air battery uses a metal anode such as Li, Mg, Al, Fe, and Zn, and an air cathode, and the electrolyte is introduced between the metal anode and the air cathode. It operates by.
  • the navigation device 60 is a device for guiding a travel route to a passenger of the host vehicle, and includes a transmission / reception device.
  • the navigation device 60 communicates with a server (not shown) using the transmission / reception device, so that information on the traveling speed of each road is obtained. And get traffic information.
  • the navigation device 60 includes a map database, and road information including traffic signal position information and terrain information is stored in the map database.
  • the in-vehicle device 100 includes a ROM (Read Only Memory) 102 in which various programs are stored, a CPU (Central Processing Unit) 101 as an operation circuit that executes the programs stored in the ROM 102, And a RAM (Random Access Memory) 103 that functions as an accessible storage device.
  • ROM Read Only Memory
  • CPU Central Processing Unit
  • RAM Random Access Memory
  • the in-vehicle device 100 has a main battery remaining capacity detection function, a main battery, in order to execute a process of prompting the occupant to start up the auxiliary battery 50 when charging from the auxiliary battery 50 to the main battery 10 is necessary.
  • a power consumption prediction function, a travelable distance calculation function, a charging facility distance calculation function, a determination function, and a presentation function are realized.
  • the in-vehicle device 100 can execute each function by the cooperation of software for realizing the above functions and the hardware described above.
  • the main battery remaining capacity detection function of the in-vehicle device 100 is a function for detecting the remaining capacity of the main battery 10. Specifically, the in-vehicle device 100 acquires the terminal voltage of the main battery 10 from a voltage sensor (not shown) provided in the main battery 10, and the terminal voltage and SOC (State of Charge) stored in the ROM 102 in advance. Is used to calculate the SOC of the main battery 10. Then, the in-vehicle device 100 calculates the remaining capacity of the main battery 10 from the calculated SOC of the main battery 10 and the capacity when the main battery 10 is fully charged.
  • a voltage sensor not shown
  • SOC State of Charge
  • the main battery power consumption prediction function of the in-vehicle device 100 is a function of calculating a predicted power consumption that is a power consumption (Wh / km) per unit travel distance of the main battery 10 to be consumed. Specifically, the in-vehicle device 100 reads out data of power consumption per unit distance up to the present time of the main battery 10 from the RAM 103, and calculates the predicted power consumption based on the read data. At this time, the in-vehicle device 100 communicates with the navigation device 60 to acquire information on the traveling speed of the surrounding road, traffic jam information, information on the position of the traffic light, and information on the terrain, and consider these information. Thus, the predicted power consumption may be calculated.
  • the travelable distance calculation function of the in-vehicle device 100 is a function for calculating the travelable distance D bat when the main battery 10 is used as a drive energy source. Specifically, the in-vehicle device 100 is based on the remaining capacity of the main battery 10 calculated by the above-described main battery remaining capacity detection function and the predicted power consumption calculated by the above-described main battery power consumption prediction function. A travelable distance D bat is calculated when the main battery 10 is used as a drive energy source.
  • the charging facility distance calculation function of the in-vehicle device 100 is a function of calculating a specific charging facility as a target charging facility among charging facilities existing in the vicinity of the own vehicle position, and calculating a distance to the target charging facility as a charging facility distance D sta. is there.
  • the in-vehicle device 100 acquires information on a map database provided in the navigation device 60 by communicating with the navigation device 60, and selects a target charging facility among charging facilities existing in the vicinity of the vehicle position. Identify. Then, the distance between the vehicle position and the specified target charging facility is calculated, and this is set as the charging facility distance D sta .
  • the target charging facility can be, for example, the charging facility closest to the position of the host vehicle.
  • the charging facility closest to the host vehicle position among the charging facilities existing on the route being guided may be set as the target charging facility. it can.
  • the determination function of the in-vehicle device 100 compares the travelable distance D bat calculated by the above-described travelable distance calculation function with the charge facility distance D sta calculated by the above-described charge facility distance calculation function, and the travelable distance D bat Is less than the charging facility distance D sta , that is, whether or not the relationship D bat ⁇ D sta is established. That is, the in-vehicle device 100 determines whether or not the target charging facility can be reached with the remaining capacity of the main battery 10.
  • the presentation function of the in-vehicle device 100 is such that when the travelable distance D bat is less than the charging facility distance D sta , that is, when the relationship D bat ⁇ D sta is established, This is a function for making a presentation for prompting the activation determination of the auxiliary battery 50. Specifically, when the relationship D bat ⁇ D sta is established, the in-vehicle device 100 determines a presentation timing for prompting the activation determination of the auxiliary battery 50, and the display 120 according to the determined presentation timing. Above, a display for prompting the determination of the activation of the auxiliary battery 50 is performed.
  • the travelable distance D bat the charging facility distance D sta, and the presentation for prompting the on-vehicle device 100 to start the auxiliary battery 50 when the relationship D bat ⁇ D sta is established.
  • the relationship with timing is shown typically.
  • the host vehicle travels up to the travelable distance D bat and is in a predetermined first time than the timing at which the host vehicle runs out of power (a state in which the power required to drive the host vehicle is insufficient).
  • the timing in the front only suggested distances D 1 and the first presentation timing, and the second presentation timing the timing in front by a predetermined second presentation distance D 2, the timing in front by a predetermined third presentation distance D 3 the 3 presentation timing. That is, the example shown in FIG. 2 shows an example in which a total of three presentation timings of the first to third presentation timings are set as presentation timings for prompting the passenger to start the auxiliary battery 50. Yes.
  • the in-vehicle device 100 is described first when the travelable distance D bat is less than the charging facility distance D sta , that is, when the relationship of D bat ⁇ D sta is established.
  • the first presentation distance D 1 , the second presentation distance D 2 , and the third presentation distance D 3 for determining the first to third presentation timings are calculated.
  • a time (time) at which a position corresponding to these distances is traveled is calculated,
  • the calculated time is set as the first presentation timing, the second presentation timing, and the third presentation timing.
  • the in-vehicle device 100 performs a display on the display 120 for prompting the start determination of the auxiliary battery 50 when the time corresponding to the first presentation timing, the second presentation timing, and the third presentation timing is reached. .
  • the display displayed on the display 120 for prompting the determination of the activation of the auxiliary battery 50 is different in each of the first presentation timing, the second presentation timing, and the third presentation timing.
  • a display first alert
  • a display second alert
  • a warning electricity shortage warning
  • the display 120 is displayed on the display 120 to the effect that electric power will be used up if the auxiliary battery is not used. Can do.
  • a voice presentation is also performed using a speaker (not shown) provided in the host vehicle.
  • the voice presentation may be performed only once, or at a predetermined time interval until the next presentation timing arrives. It is good also as an aspect which repeats by and presents with an audio
  • the occupant of the host vehicle suppresses the power consumption of the main battery 10 such as stopping the operation of the car air conditioner or the like.
  • the predicted power consumption and the travelable distance D bat are calculated again in a state where the operation for suppressing the power consumption is performed.
  • the relationship D bat ⁇ D sta does not hold as a result of calculating the travelable distance D bat again, the first alerting is stopped.
  • an occupant of the host vehicle uses the operation unit 110 to perform an operation for interrupting or stopping the display for prompting the start determination of the auxiliary battery 50 displayed on the display 120.
  • an operation for interrupting or stopping is performed, the display operation for prompting the determination of starting the auxiliary battery 50 is interrupted or stopped.
  • the voice presentation is also executed, the voice presentation is also interrupted or stopped.
  • the passenger does not need to present a prompt to determine whether to start the auxiliary battery 50, for example, a charging facility that is not registered in the navigation device 60 within the range of the travelable distance Dbat (for example, the home of the passenger) Or a newly installed charging facility), or when the charging facility existing on a route different from the route guided by the navigation device 60 is used as a transit point, etc.
  • the presentation for prompting judgment can be interrupted or canceled.
  • the presentation for prompting the activation determination of the auxiliary battery 50 is unnecessary, the occupant can be released from the troublesomeness caused by the presentation for prompting the activation determination of the auxiliary battery 50.
  • the first presentation distance D 1 , the second presentation distance D 2 , and the third presentation distance D 3 for determining the first to third presentation timings are determined as follows.
  • the That is, first, the third presentation distance D 3 for determining the final presentation timing is determined by starting the travelable distance D bat , the auxiliary battery 50, and the activation of the system for driving the auxiliary battery 50. And the time from startup to completion of startup. For example, when an air battery is used as the auxiliary battery 50, the time for injecting the electrolyte into the battery system, the holding time for stabilizing the battery, and the battery performance (for example, battery voltage) are checked. Time is required.
  • the time for starting the system for driving the auxiliary battery 50 (for example, checking the circuit and gas system, starting and stabilizing related auxiliary machines) Time) is also required. Therefore, in the present embodiment, when setting the third presentation distance D 3 is the final presentation, considering the time it takes to boot the system for driving these auxiliary battery 50 and auxiliary battery 50, And set. And this, according to the present embodiment, appropriate to prevent a third presentation timing is the final presentation timing is set based on the third suggested distances D 3, the electrostatic deficient state The timing can be set, so that a warning can be given to the passenger at an appropriate timing.
  • the method of determining the third suggested distances D 3 first presentation distance D 1 of the non, and a second presentation distance D 2 is not particularly limited, may be appropriately determined, for example, the auxiliary battery 50 and auxiliary battery, It can be determined based on the time required to start the system for driving 50, the power consumption speed of the main battery 10, and the like.
  • FIG. 3 is a flowchart showing processing executed in this embodiment.
  • a total of three presentation timings of the first to third presentation timings are set as presentation timings for prompting the passenger to start the auxiliary battery 50.
  • the processing in the case of doing will be described.
  • the process demonstrated below is performed by the vehicle-mounted apparatus 100 at a predetermined process interval.
  • step S101 the in-vehicle device 100 executes a process for calculating the travelable distance Dbat . Specifically, the in-vehicle device 100 calculates the remaining capacity and predicted power consumption of the main battery 10 by the above-described main battery remaining capacity detection function and main battery power consumption prediction function. The in-vehicle device 100 calculates the travelable distance D bat based on the calculated remaining capacity of the main battery 10 and the predicted power consumption by the travelable distance calculation function described above.
  • step S102 the in-vehicle device 100 executes a process for calculating the charging facility distance D sta .
  • the in-vehicle device 100 specifies the target charging facility among the charging facilities existing in the vicinity of the own vehicle position by the charging facility distance calculation function described above, and from the own vehicle position to the specified target charging facility position. Is calculated as a charging facility distance D sta .
  • step S103 the in-vehicle device 100 determines whether the travelable distance D bat calculated in step S101 is less than the charging facility distance D sta calculated in step S102, that is, D bat ⁇ D sta .
  • a determination is made whether the relationship is established. As a result of the determination, if the relationship D bat ⁇ D sta is established, it is determined that a process for prompting the passenger to start the auxiliary battery 50 is necessary, and the process proceeds to step S104.
  • the relationship D bat ⁇ D sta is not established, that is, the current remaining capacity of the main battery 10 can reach the target charging facility specified in step S102, and therefore, the auxiliary battery 50 does not need to be activated. It returns to step S101.
  • step S104 the in-vehicle device 100 prompts the display 120 to start the auxiliary battery 50. Processing for calculating the first to third presentation timings for display is performed.
  • step S105 the in-vehicle device 100 determines whether or not the time corresponding to the first presentation timing has been reached. If the time corresponding to the first presentation timing has been reached, the process proceeds to step S106, and the display On 120, a warning display indicating that there is a shortage of electricity if the auxiliary battery is not used, that is, a first warning is displayed. On the other hand, if the time corresponding to the first presentation timing has not been reached, the system waits until the time corresponding to the first presentation timing is reached.
  • step S107 the in-vehicle device 100 determines whether or not an operation for starting the auxiliary battery 50 has been executed by the occupant. If an operation for starting up the auxiliary battery 50 is executed, the process proceeds to step S114, and after the start command is transmitted to the auxiliary battery 50, if the auxiliary battery on the display 120 is not used, an electric shortage occurs. The display of the alert to the effect (first alert) is terminated, and this processing is terminated. On the other hand, when the operation for starting the auxiliary battery 50 is not executed, the process proceeds to step S108. In addition, operation for starting the auxiliary
  • step S108 the in-vehicle device 100 determines whether or not the time corresponding to the second presentation timing has been reached. If the time corresponding to the second presentation timing has been reached, the process proceeds to step S109, and the display On 120, a display with a further enhanced degree of alerting, that is, a second alert is executed. On the other hand, if the time corresponding to the second presentation timing has not been reached, the process returns to step S107, and a warning display (first display) is displayed indicating that the battery will run out unless the auxiliary battery is used on the display 120. The determination of whether or not the auxiliary battery 50 has been started up (step S107) and whether or not the time corresponding to the second presentation timing has been reached (step S108). Repeat and execute.
  • step S108 If it is determined in step S108 that the time corresponding to the second presentation timing has been reached, the second alert is executed in step S109, and then the process proceeds to step S110, which is the same as step S107 described above.
  • the vehicle-mounted device 100 determines whether or not an operation for starting the auxiliary battery 50 has been executed by the occupant. When an operation for starting the auxiliary battery 50 is executed, the process proceeds to step S114, and after the start command is transmitted to the auxiliary battery 50, a display (second display) that further increases the degree of alerting on the display 120. ) Is terminated, and this process is terminated. On the other hand, when the operation for starting the auxiliary battery 50 is not executed, the process proceeds to step S111.
  • step S111 the in-vehicle device 100 determines whether or not the time corresponding to the third presentation timing has been reached. If the time corresponding to the third presentation timing has been reached, the process proceeds to step S112, and the display On 120, a warning message indicating that the battery will run out if the auxiliary battery is not used, that is, a battery shortage warning is displayed. On the other hand, if the time corresponding to the third presentation timing has not been reached, the process returns to step S110, and the display (second alert) with a further enhanced degree of alert on the display 120 is continued. Thus, the determination whether the auxiliary battery 50 has been activated (step S110) and the determination whether the time corresponding to the third presentation timing has been reached (step S111) are repeated.
  • step S111 If it is determined in step S111 that the time corresponding to the third presentation timing has been reached, an electric shortage warning is executed in step S112, and then the process proceeds to step S113, which is similar to steps S107 and S110 described above.
  • the vehicle-mounted device 100 determines whether or not an operation for starting the auxiliary battery 50 has been executed by the occupant. If an operation for starting up the auxiliary battery 50 is executed, the process proceeds to step S114, and after the start command is transmitted to the auxiliary battery 50, if the auxiliary battery on the display 120 is not used, an electric shortage occurs. The warning display (power failure warning) is terminated, and this processing is terminated.
  • step S113 the process waits until an operation for starting the auxiliary battery 50 is executed.
  • the process for prompting the passenger to perform an operation for starting the auxiliary battery 50 is executed.
  • the travelable distance D bat that is the distance that can be traveled by the main battery 10 is compared with the charging facility distance D sta that is the distance to the target charging facility, and the travelable distance D bat is If it is less than the distance D sta, that is, if the remaining capacity of the main battery 10 cannot reach the target charging facility, and therefore, an electric shortage occurs, the occupant is determined to start the auxiliary battery 50. Make a presentation to encourage. For this reason, according to the present embodiment, it is possible to appropriately prevent the lack of running state due to the lack of electricity and the lack of electricity. That is, according to the present embodiment, when the remaining capacity of the main battery 10 is insufficient, the auxiliary battery 50 can be charged from the auxiliary battery 50 at an appropriate timing, thereby realizing smooth running.
  • the occupant notices that the capacity of the main battery 10 is insufficient, it is already in a state immediately before the lack of electricity, and it is unavoidable that the lack of electricity occurs. It is possible to effectively prevent problems such as falling.
  • the minimum auxiliary battery 50 can be effectively utilized to be in an electric shortage state. It can be effectively prevented.
  • the mounting type battery inevitably has a large output, and therefore the battery weight increases.
  • the travel distance by the main battery may be reduced, and there is a problem that it is not suitable for securing the travel distance in the first place.
  • such a problem can be effectively solved by using an auxiliary battery having an output / capacity smaller than that of the main battery 10 as the auxiliary battery 50.
  • the start timing of the auxiliary battery 50 can be made appropriate by providing the passenger with a prompt to determine whether to start the auxiliary battery 50, whereby the auxiliary battery 50 can be activated. It is possible to prevent the battery 50 from being unnecessarily activated.
  • the presentation for prompting the start determination of the auxiliary battery 50 is performed in a stepwise manner over a plurality of times, so the passenger is prompted to make a start determination on the auxiliary battery 50 reliably and accurately. be able to.
  • the first presentation timing of the example shown in FIG. 2 it is possible to assist the occupant at a relatively early stage by alerting the user that he / she will run out of electricity if the auxiliary battery 50 is not used.
  • it is also possible to provide room for selecting another method such as using a charging facility on a route different from the route guided by the navigation device 60 as a waypoint. Become.
  • the control system for an electric vehicle according to the second embodiment has a configuration as shown in FIG. 1 like the first embodiment described above, except that it differs from the first embodiment described above in the points described below.
  • the operation is the same as in the first embodiment described above, and the same effect is achieved.
  • the vehicle-mounted device 100 executes a process for prompting the occupant to start up the auxiliary battery 50.
  • a necessary power amount calculation function described below is further realized.
  • the required power amount calculation function of the control device 100 is such that the remaining amount of the main battery 10 remains when the travelable distance D bat is less than the charging facility distance D sta , that is, when the relationship D bat ⁇ D sta is satisfied.
  • This is a function for calculating the necessary power amount P dem necessary for reaching the target charging facility in addition to the power amount. That is, when the relationship of D bat ⁇ D sta is established, the control device 100 determines the target charging facility based on the travelable distance D bat and the charging facility distance D sta as shown in the following formula (1). Is calculated by multiplying the shortage distance (D sta -D bat ) by the correction coefficient ⁇ .
  • D cor ⁇ ⁇
  • control unit 100 from the calculated corrected insufficient distance D cor, calculates the amount of power needed to run the insufficient correction distance D cor, the calculated amount of power, and required power amount P dem.
  • the correction coefficient ⁇ is a coefficient for correcting the short distance (D sta ⁇ D bat ) to the target charging facility, and thereby more accurately calculating the electric power required to reach the target charging facility.
  • the correction coefficient ⁇ is determined by the control device 100 based on information on the auxiliary battery 50, information on the main battery 10, and information on the route to the target charging facility acquired from the navigation device 60. Is set. That is, according to the present embodiment, the correction coefficient ⁇ is set on the basis of these pieces of information, and the correction undercorrection distance D cor and the necessary power amount P dem are calculated using the set correction coefficient ⁇ .
  • the actual characteristics of the battery 50, the current state of the main battery 10, the actual driving situation on the route to the target charging facility, and the like can be taken into account. Therefore, it is necessary to reach the target charging facility. Can be calculated more accurately.
  • information relating to the auxiliary battery 50 used for calculating the correction coefficient ⁇ includes time required for starting the auxiliary battery 50, information on the output and capacity of the auxiliary battery 50, and further mounted on the host vehicle. Information on the number of auxiliary batteries 50 that are connected is included. Moreover, as the information regarding the main battery 10, the information of the remaining capacity of the main battery 10 and the information of average power consumption are mentioned. Furthermore, as the information about the route to the target charging facility acquired from the navigation device 60, the information on the position of traffic lights and the information on the terrain existing on the route to the target charging facility, and the charging target for running from the current own vehicle position Information on the traveling speed of the route to the facility, traffic jam information, and the like.
  • the correction coefficient ⁇ is normally set to ⁇ ⁇ 1.
  • factors that can suppress the power consumption of the main battery 10 relatively such as a point where a relatively large regenerative energy can be obtained on the route from the current vehicle position to the target charging facility. Is present, ⁇ ⁇ 1.
  • the information related to the auxiliary battery 50 is obtained when the in-vehicle device 100 recognizes specifications such as start-up time, capacity, and output stored in an IC chip incorporated in the auxiliary battery 50, for example.
  • the acquisition method is mentioned.
  • the specification is such that the terminal position varies depending on the type of the auxiliary battery 50, and the type of the auxiliary battery 50 is detected by recognizing the terminal position when the auxiliary battery 50 is incorporated in the host vehicle. You may use the method acquired by collating the detected classification with the information of the specification for every classification previously stored in RAM103 of the vehicle-mounted apparatus 100.
  • the weight of the auxiliary battery 50 is detected, and the detected weight is stored in the RAM 103 of the in-vehicle device 100 as information on the type for each weight and the type. You may use the method acquired by collating with the information of each specification.
  • the correction coefficient ⁇ can be appropriately set according to the specification of the auxiliary battery 50 by detecting the specification of the auxiliary battery 50 and acquiring information on the auxiliary battery 50 thereby. .
  • the timing for making a presentation for prompting the occupant to start the auxiliary battery 50 using the corrected undercorrect distance D cor and the required power amount P dem calculated in this way To decide.
  • FIG. 4 when the relation D bat ⁇ D sta is established, the travelable distance D bat , the charging facility distance D sta , the correction insufficient distance D cor, and the start determination of the auxiliary battery 50 by the in-vehicle device 100 are performed.
  • the relationship with the presentation timing for prompting is shown typically.
  • FIG. 4 illustrates a case where the correction coefficient ⁇ is ⁇ > 1.
  • the time when the host vehicle travels to the travelable distance D bat and becomes in a power shortage state (a state in which the power required to drive the host vehicle is insufficient).
  • the first presentation is performed at a timing that is a predetermined first presentation distance D 1 before the timing when the electric shortage occurs. and timing, also the second presentation timing the timing in front by a predetermined second presentation distance D 2, the timing in front by a predetermined third presentation distance D 3 third presentation timing.
  • the correction coefficient ⁇ is set based on the information about the auxiliary battery 50, the information about the main battery 10, and the information about the route to the target charging facility acquired from the navigation device 60. ⁇ is used to calculate the correction insufficient distance D cor and the required power amount P dem , and based on these, the presentation timing for prompting the determination of the activation of the auxiliary battery 50 is set.
  • the actual characteristics of the auxiliary battery 50 and the current state of the main battery 10 are calculated by calculating the undercorrected distance D cor and the required power amount P dem using the correction coefficient ⁇ .
  • more accurate timing can be obtained by setting the presentation timing for prompting the start determination of the auxiliary battery 50 based on such an undercorrected distance D cor and the required power amount P dem.
  • a presentation for prompting the passenger to start the auxiliary battery 50 can be performed.
  • auxiliary battery unit 500 including a plurality of auxiliary batteries 50 is provided.
  • the number of auxiliary batteries 50 provided in the auxiliary battery unit 500 is detected by the control device 100.
  • the control device 100 can travel at a distance that can be traveled by the main battery 10 when the process for starting the auxiliary battery 50 is performed by the user via the operation unit 110. Based on the distance D bat and the charging facility distance D sta which is the distance to the target charging facility, the number of activations and the activation timing of the plurality of auxiliary batteries 50 provided in the auxiliary battery unit 500 are determined, and based on this, A command for starting the auxiliary battery 50 is transmitted. Specifically, the control device 100 calculates an insufficient distance (D sta ⁇ D bat ) that is a difference between the travelable distance D bat and the charging facility distance D sta, and based on this, the plurality of auxiliary batteries 50 The number of activations and the activation timing can be determined.
  • the number of activations of the auxiliary battery 50 can be set to 1.
  • the number of startups of the auxiliary batteries 50 is set to 2. can do.
  • the first auxiliary battery 50 is activated, the remaining capacity of the main battery 10 and the distance to the target charging facility are repeatedly detected, and the second auxiliary battery 50 is installed. It can be configured that the second auxiliary battery 50 is activated when it is determined whether or not the auxiliary battery 50 needs to be activated.
  • the plurality of auxiliary batteries 50 provided in the auxiliary battery unit 500 based on the travelable distance D bat and the charging facility distance D sta.
  • the number of auxiliary batteries 50 to be used can be suppressed to the minimum necessary number.
  • the in-vehicle device 100 when two or more auxiliary batteries 50 are activated, the in-vehicle device 100 causes the two or more auxiliary batteries 50 to be activated in series connection / It is good also as a structure which can switch a parallel connection. Specifically, the main battery 10 needs to be charged with high output, and the case where high output is not required and high capacity is required, by switching between serial connection / parallel connection, The discharge according to the purpose of the battery 50 can be made possible.
  • the main battery remaining capacity detection function of the in-vehicle device 100 is provided in the remaining capacity detection means of the present invention
  • the main battery power consumption prediction function of the in-vehicle device 100 is provided in the power consumption prediction means of the present invention.
  • the function for calculating the travelable distance of the in-vehicle device 100 is the travelable distance calculation means of the present invention
  • the charge facility distance calculation function of the in-vehicle device 100 is the charge facility distance calculating means of the present invention
  • the determination function of the vehicle-mounted device 100 is the determination function of the present invention.
  • the presenting function of the in-vehicle device 100 corresponds to the presenting means of the present invention.

Abstract

　Dispositif embarqué dans un véhicule équipé d'une batterie principale qui fournit de l'énergie électrique à un moteur et d'une batterie auxiliaire qui fournit de l'énergie électrique à la batterie principale, ledit dispositif embarqué comparant la distance qui peut être parcourue sur la batterie principale avec la distance jusqu'à l'installation de chargement située à proximité de la position actuelle du véhicule, et si la distance pouvant être parcourue est inférieure à la distance jusqu'à l'installation de chargement située à proximité de la position actuelle du véhicule, des instructions sont fournies pour inviter le passager à prendre une décision pour démarrer la batterie auxiliaire.
PCT/JP2013/074982 2012-09-18 2013-09-17 Dispositif embarqué WO2014046071A1 (fr)

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