Information providing apparatus, information providing method, and storage medium

Abstract

The invention provides an information provision device, an information provision method, and a storage medium, which can provide data capable of accurately ascertaining the amount of power required for charging a vehicle-mounted storage battery in each region. An information providing device acquires, by communication, power reception information and position information from a communication device mounted on a vehicle provided with a power reception device that receives power in a non-contact manner from a power supply device provided on a road, the power reception information relating to the power reception. The information providing device calculates area power consumption by summing up the power reception information for each area on the basis of the position information, visualizes the area power consumption, and provides the area power consumption to another device.

Description

Technical Field

[0001] The invention relates to an information providing device, an information providing method and a storage medium. Background Art

[0002] In order to realize a decarbonized society, the electrification of motor vehicles is being promoted, and in order to ensure a long cruising range of electric motor vehicles, a method of increasing the capacity of the on-vehicle battery is being adopted (Japanese Patent Application Laid-Open No. 2022-176733). Summary of the invention

[0003] Problems to be solved by the invention

[0004] In the above-mentioned conventional technology, the load of temporary power supply due to rapid charging of the vehicle-mounted battery increases. When the load of power supply due to rapid charging of the vehicle-mounted battery increases, it becomes difficult to secure power in the event of power shortage or the like.

[0005] Solutions to Solve Problems

[0006] The present invention has been made in consideration of such a matter, and one of its purposes is to provide an information providing device, an information providing method, and a storage medium that can provide data that can accurately grasp the amount of electric power required for charging a vehicle-mounted battery in each region.

[0007] The information providing device, information providing method, and storage medium according to the present invention employ the following structures.

[0008] (1): One aspect of the present invention relates to an information providing device, wherein the information providing device comprises: an acquisition unit that acquires power receiving information and position information related to power receiving through communication from a communication device mounted on a vehicle having a power receiving device that receives power from a power supply device installed on a road in a non-contact manner; a calculation unit that calculates regional power consumption by summing up the power receiving information for each area based on the position information; and a providing unit that visualizes the regional power consumption and provides it to other devices.

[0009] (2): Based on the solution of the above (1), a size of the area to be switched between the urban area and the area other than the urban area is provided.

[0010] (3) Based on the above-mentioned solution (2), the providing unit makes the size of the area of ​​the urban area larger than the size of the area of ​​the region other than the urban area.

[0011] (4) In the above-mentioned scheme (1), the acquisition unit acquires power consumption information of in-vehicle devices mounted on the vehicle in addition to power reception information, and the providing unit further visualizes the power consumption of the in-vehicle devices and provides it to other devices.

[0012] (5): One aspect of the present invention relates to an information providing method, wherein the information providing method causes an information providing device to perform the following processing: obtaining power receiving information and position information related to power receiving through communication from a communication device mounted on a vehicle having a power receiving device that receives power from a power supply device installed on a road in a non-contact manner; calculating regional power consumption by aggregating the power receiving information for each area based on the position information; and visualizing the regional power consumption and providing it to other devices.

[0013] (6): One aspect of the present invention relates to a storage medium storing a program, wherein the program is used to cause a processor of an information providing device to perform the following processing: obtaining power receiving information and position information related to power receiving through communication from a communication device mounted on a vehicle having a power receiving device that receives power from a power supply device installed on a road in a non-contact manner; calculating regional power consumption by aggregating the power receiving information for each area based on the position information; and visualizing the regional power consumption and providing it to other devices.

[0014] Effects of the Invention

[0015] According to the aspects (1) to (6), by acquiring the vehicle power consumption data and visualizing it as regional power consumption, it is possible to provide data that can accurately grasp the amount of power required for charging the vehicle-mounted battery in each region. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a diagram showing the configuration of a contactless power transmission system.

[0017] Figure 2 It is a diagram showing the configuration of a power transmission unit and a power reception unit of a contactless power transmission system.

[0018] Figure 3 This is a block diagram showing the functional configuration of a control device in a contactless power transmission system.

[0019] Figure 4 This is a block diagram showing a functional configuration related to power supply control of a control device in a contactless power transmission system.

[0020] Figure 5 This is a block diagram showing a functional configuration related to power storage device protection of a control device in a contactless power transmission system.

[0021] Figure 6 This is a block diagram showing the functional configuration of a power estimating unit and a discharge limiting protection unit of a control device in a contactless power transmission system.

[0022] Figure 7This is a block diagram showing the functional configuration of a power estimating unit and a charging limit protecting unit of a control device in a contactless power transmission system.

[0023] Figure 8 It is a diagram showing an example of the configuration of a vehicle and an information providing device.

[0024] Fig. 9 This is an example of a processing result of the grid processing performed by the calculation unit.

[0025] Fig.10 This is a flowchart showing an example of the operation of the first embodiment.

[0026] Fig.11 This is a diagram showing an example of average on-road stop time. DETAILED DESCRIPTION

[0027] <First embodiment>

[0028] Hereinafter, a first embodiment of an information providing device, an information providing method, and a storage medium of the present invention will be described with reference to the accompanying drawings. The information providing device is implemented by one or more processors. The information providing device is a device that collects information obtained through a non-contact power transmission system and provides information based on the collected information. The non-contact power transmission system is configured so that the vehicle receives power in a non-contact manner from a power supply device set on the road. The information providing device can be implemented by the operator of the service installing a program on a cloud server. In this case, the holder of the hardware of the information providing device and the operator of the vehicle rental service may be different.

[0029] First, the configuration of the contactless power transmission system 1 used in each embodiment will be described. Figure 1 1 is a diagram showing a configuration of a contactless power transmission system 1 . Figure 2 This is a diagram showing the configuration of a power transmission unit 8 and a power reception unit 31 of a contactless power transmission system 1. The power control device 10 is mounted on a vehicle such as an electric vehicle. The electric vehicle is an electric vehicle, a hybrid vehicle, a fuel cell vehicle, etc. The contactless power transmission system 1 having the power control device 10 supplies power to the vehicle from outside the vehicle by contactless power transmission. (The same applies hereinafter)

[0030] The contactless power transmission system 1 includes, for example, a power transmission device 2 provided on a running path of a vehicle M, and a drive control device 3 and a power control device 10 mounted on a vehicle M such as a hybrid vehicle M. The power transmission device 2 includes, for example, a power supply unit 5, a capacitor (condenser) 6, a power conversion unit 7, and a power transmission unit 8. It should be noted that the power transmission device 2 may also include, for example, at least a plurality of power transmission units 8 in a predetermined power transmission section in the running path of the vehicle M. The power supply unit 5 includes, for example, an AC power supply such as a commercial power supply, and an AC-DC converter that converts AC power into DC power. The power supply unit 5 converts the AC power supplied from the AC power supply into DC power through the AC-DC converter. The capacitor 6 is connected in parallel to the power supply unit 5. The capacitor 6 smoothes the DC power output from the power supply unit 5.

[0031] The power conversion unit 7, for example, includes an inverter that converts DC power into AC power. The inverter of the power conversion unit 7 includes a bridge circuit formed by a plurality of switching elements and a rectifying element connected in a two-phase bridge. Each switching element is, for example, a transistor such as a MOSFET (Metal Oxide Semi-conductor Field Effect Transistor) of SiC (Silicon Carbide). The plurality of switching elements are transistors 7a and 7b of a high-side arm and a low-side arm that form a pair in each phase. The collector of the transistor 7a of the high-side arm is connected to the positive electrode of the power supply unit 5. The emitter of the transistor 7b of the low-side arm is connected to the negative electrode of the power supply unit 5. The emitter of the transistor 7a of the high-side arm and the collector of the transistor 7b of the low-side arm are connected to the power transmission unit 8. The rectifying element is, for example, a freewheeling diode connected in parallel in a forward direction from the emitter to the collector between the collector-emitter of each transistor 7a and 7b.

[0032] The power transmission unit 8 transmits power by utilizing changes in high-frequency magnetic fields, for example, through magnetic field coupling such as magnetic field resonance or electromagnetic induction. Figure 2 As shown, the power transmission unit 8 includes, for example, a resonance circuit formed by a primary coil 8a, a primary resistor 8b, and a primary capacitor 8c connected in series. The power transmission unit 8 includes, for example, a sensor such as a current sensor that detects a current It flowing through the resonance circuit.

[0033] like Figure 1As shown, the drive control device 3 of the vehicle M includes, for example, a power storage device 11, a first power conversion device 12, and a rotating electric machine 13. The power control device 10 of the vehicle M includes, for example, a power receiving device 14, a second power conversion device 15, and a control device 16. The power storage device 11 is charged by the power transmitted in a non-contact manner from the power transmission device 2 outside the vehicle M. The power storage device 11 exchanges power with the rotating electric machine 13 via the first power conversion device 12. The power storage device 11 includes, for example, a battery such as a lithium ion battery, a current sensor for detecting the current of the battery, and a voltage sensor for detecting the voltage of the battery. The power storage device 11 is connected to the positive terminal 12a and the negative terminal 12c on the primary side of the first power conversion device 12 described later.

[0034] The first power conversion device 12 includes, for example, a voltage controller that converts input power and output power during charging and discharging of the power storage device 11 by bidirectional voltage conversion of step-up and step-down, and a power converter that converts DC power and AC power. The first power conversion device 12 includes, for example, a pair of reactors 21, a first element module 22, a resistor 23, a switch element 24, a second element module 25, a first capacitor 26, and a second capacitor 27. For example, the pair of reactors 21, the first element module 22, and the first capacitor 26 constitute a voltage controller, and the second element module 25 and the second capacitor 27 constitute a power converter.

[0035] A pair of reactors 21 forms a composite reactor by magnetically coupling with opposite polarities. A pair of reactors 21 is connected to the positive terminal 12a of the primary side and the first element module 22. The first element module 22, for example, has a bridge circuit formed by a plurality of switching elements and a rectifying element connected in a two-phase bridge. Each switching element is, for example, a transistor such as SiC MOSFET. The plurality of switching elements are transistors 22a and 22b of the high-side arm and the low-side arm of each phase. The collector of the transistor 22a of the high-side arm is connected to the positive terminal 12b of the secondary side. The emitter of the transistor 22b of the low-side arm is connected to the negative terminal 12c shared by the primary side and the secondary side. The emitter of the transistor 22a of the high-side arm and the collector of the transistor 22b of the low-side arm are connected to the reactor 21. The rectifying element is, for example, a freewheeling diode connected in parallel in a forward direction from the emitter to the collector between the collector-emitter of each transistor 22a, 22b.

[0036] The first element module 22 includes, for example, a voltage sensor that detects a voltage between the positive electrode terminal 12 a and the negative electrode terminal 12 c on the primary side, and a current sensor that detects a current flowing through the pair of reactors 21 .

[0037] The pair of reactors 21 and the first element module 22 perform voltage conversion by so-called two-phase interleaving. In the two-phase interleaving, one cycle of switching operation control of the first-phase transistors 22a and 22b and one cycle of switching operation control of the second-phase transistors 22a and 22b of the two-phase transistors 22a and 22b connected to the pair of reactors 21 are shifted by half a cycle.

[0038] The resistor 23 is connected in series with the switch element 24. The switch element 24 is, for example, a transistor such as a SiC MOSFET. The resistor 23 is connected to the positive terminal 12b on the secondary side and the collector of the switch element 24, and the emitter of the switch element 24 is connected to the negative terminal 12c. The second element module 25, for example, includes a bridge circuit formed by a plurality of switch elements and a rectifier element connected in a three-phase bridge. Each switch element is, for example, a transistor such as a SiC MOSFET. The plurality of switch elements are transistors 25a and 25b of the high-side arm and the low-side arm of each phase in pairs. The collector of the transistor 25a of the high-side arm is connected to the positive terminal 12b on the secondary side. The emitter of the transistor 25b of the low-side arm is connected to the negative terminal 12c. The emitter of the transistor 25a of the high-side arm and the collector of the transistor 25b of the low-side arm are connected to the stator winding of the rotating electric machine 13 via the AC terminal 12d. The rectifying element is, for example, a freewheeling diode connected in parallel in a forward direction from the emitter to the collector between the collectors and emitters of the transistors 25a and 25b. The second element module 25 includes, for example, a current sensor for detecting a current flowing through the stator winding of the rotary electric machine 13 from each AC terminal 12d.

[0039] The first capacitor 26 is connected to the positive terminal 12a and the negative terminal 12c on the primary side. The second capacitor 27 is connected to the positive terminal 12b and the negative terminal 12c on the secondary side between the first element module 22 and the second element module 25. Each capacitor 26 smoothes the voltage fluctuation caused by the switching operation of turning on (conducting) and turning off (cutting off) each switching element.

[0040] The second element module 25 controls the operation of the rotating electric machine 13 by transferring power. For example, when the rotating electric machine 13 is in power operation, the second element module 25 converts the DC power input from the positive terminal and the negative terminal into three-phase AC power, and supplies the three-phase AC power to the rotating electric machine 13. The second element module 25 generates a rotational driving force by sequentially reversing the energization of the three-phase stator winding of the rotating electric machine 13. For example, when the rotating electric machine 13 is regenerated, the second element module 25 converts the three-phase AC power input from the three-phase stator winding into DC power by driving the switching elements of each phase to be connected (conducted) and disconnected (cut off) in synchronization with the rotation of the rotating electric machine 13. The second element module 25 can supply the DC power converted from the three-phase AC power to the power storage device 11 via a pair of reactors 21 and the first element module 22.

[0041] The rotating electric machine 13 is, for example, a three-phase AC brushless DC motor. The rotating electric machine 13 includes a rotor and a stator, wherein the rotor has a permanent magnet for excitation, and the stator has a three-phase stator winding that generates a rotating magnetic field that rotates the rotor. The three-phase stator winding is connected to the three-phase AC terminal 12d of the first power conversion device 12. The rotating electric machine 13 generates a rotational driving force by performing a power operation using the power supplied from the first power conversion device 12. For example, when the rotating electric machine 13 can be connected to the wheels of the vehicle M, it generates a driving force by performing a power operation using the power supplied from the first power conversion device 12. The rotating electric machine 13 can also generate generated power by performing a regenerative operation using the rotational power input from the wheel side of the vehicle M. When the rotating electric machine 13 can be connected to the internal combustion engine of the vehicle M, it can also generate power by the power of the internal combustion engine.

[0042] The power receiving device 14 includes, for example, a power receiving unit 31, a power conversion unit 32, and a capacitor 33. Figure 2 As shown, the power receiving unit 31 obtains power by, for example, coupling the change of the high-frequency magnetic field transmitted from the power transmitting unit 8 by magnetic field such as magnetic field resonance or electromagnetic induction. The power receiving unit 31 includes, for example, a resonant circuit formed by a secondary coil 31a, a secondary resistor 31b, and a secondary capacitor 31c connected in series. The power receiving unit 31 includes, for example, a sensor such as a current sensor that detects the current Ir flowing through the resonant circuit.

[0043] like Figure 1 As shown, the power conversion unit 32 includes a so-called full-bridgeless (or bridgeless and totem pole) power factor correction (PFC) circuit for converting AC power into DC power. The so-called bridgeless PFC is a PFC that does not include a bridge rectifier based on a plurality of diodes connected by a bridge, and the so-called totem pole PFC is a PFC that includes a pair of switching elements of the same conductivity type connected in series in the same direction (totem pole connection).

[0044] The power conversion unit 32, for example, includes a bridge circuit formed by a plurality of switching elements and a rectifying element connected in a two-phase bridge. Each switching element is, for example, a transistor such as a SiC MOSFET. The plurality of switching elements are transistors 32a and 32b of a high-side arm and a low-side arm in pairs of each phase. The collector of the transistor 32a of the high-side arm is connected to the positive terminal 14a of the secondary side. The emitter of the transistor 32b of the low-side arm is connected to the negative terminal 14b of the secondary side. The emitter of the transistor 32a of the high-side arm and the collector of the transistor 32b of the low-side arm are connected to the power receiving unit 31. The rectifying element is, for example, a freewheeling diode connected in parallel in a forward direction from the emitter to the collector between the collector-emitter of each transistor 32a, 32b.

[0045] The capacitor 33 is connected to the positive terminal 14a and the negative terminal 14b on the secondary side. The capacitor 33 smoothes voltage fluctuations caused by switching operations of turning on (conducting) and turning off (cutting off) each switching element.

[0046] The second power conversion device 15 outputs arbitrary DC power by converting the DC power output from the power receiving device 14. The second power conversion device 15 includes, for example, a transformer that performs voltage conversion to step down the voltage. The second power conversion device 15 includes, for example, a pair of reactors 41, an element module 42, and a capacitor 43.

[0047] The pair of reactors 41 form a composite reactor by being magnetically coupled with each other in opposite polarities. The pair of reactors 41 are connected to the positive electrode terminal 15 a on the secondary side and the element module 42 .

[0048] The element module 42 has a bridge circuit formed by a plurality of switching elements and a rectifying element connected in a two-phase bridge. Each switching element is, for example, a transistor such as a SiC MOSFET. The plurality of switching elements are transistors 42a, 42b of the high-side arm and the low-side arm of each phase in pairs. The collector of the transistor 42a of the high-side arm is connected to the positive terminal 15b of the primary side. The emitter of the transistor 42b of the low-side arm is connected to the negative terminal 15c shared by the primary side and the secondary side. The emitter of the transistor 42a of the high-side arm and the collector of the transistor 42b of the low-side arm are connected to the reactor 41. The rectifying element is, for example, a freewheeling diode connected in parallel in a forward direction from the emitter to the collector between the collector-emitter of each transistor 42a, 42b.

[0049] The pair of reactors 41 and the element module 42 perform voltage conversion by so-called two-phase interleaving. In the two-phase interleaving, one cycle of the switching operation control of the first-phase transistors 42a and 42b and one cycle of the switching operation control of the second-phase transistors 42a and 42b of the two-phase transistors 42a and 42b connected to the pair of reactors 41 are shifted by half a cycle. The capacitor 43 is connected to the positive terminal 15a and the negative terminal 15c of the secondary side. The capacitor 43 smoothes the voltage fluctuation caused by the switching operation of each switching element being turned on (conducted) and turned off (cut off).

[0050] The positive terminal 15b on the primary side of the second power conversion device 15 is connected to the positive terminal 14a on the secondary side of the power receiving device 14. The positive terminal 15a on the secondary side of the second power conversion device 15 is connected to the positive terminal 12b on the secondary side of the first power conversion device 12. The negative terminal 15c of the second power conversion device 15 is connected to the negative terminal 14b on the secondary side of the power receiving device 14 and the negative terminal 12c of the first power conversion device 12.

[0051] The control device 16 controls the drive control device 3 and the power control device 10 of the vehicle M in an integrated manner, for example. The control device 16 is a software function unit that performs functions by executing a predetermined program through a processor such as a CPU (Central Processing Unit). The software function unit is an ECU having a processor such as a CPU, a ROM (Read Only Memory) for storing programs, a RAM (Random Access Memory) for temporarily storing data, and electronic circuits such as a timer. It should be noted that at least a part of the control device 16 may also be an integrated circuit such as an LSI (Large Scale Integration).

[0052] The control device 16, for example, generates a control signal indicating the timing of driving each switching element to be turned on (conducted) and turned off (cut off), and generates a gate signal for actually driving each switching element to be turned on (conducted) and turned off (cut off) based on the control signal. For example, the control device 16 rectifies the AC power obtained from the power transmission device 2 into DC power by controlling the switching action of each switching element of the power receiving device 14, and performs power factor correction of the input voltage and input current. For example, the control device 16 controls the output corresponding to the target output by performing a synchronous rectification action of synchronously driving multiple switching elements of the power receiving device 14 to be turned on (conducted) and turned off (cut off), and a short-circuiting action of short-circuiting the secondary side coil 31a.

[0053] For example, the control device 16 detects the current Ir flowing through the secondary coil 31a, which is the current generated in the power receiving unit 31 by the power transmitted from the power transmitting unit 8, and controls the synchronous rectification operation according to the magnitude and phase of the current Ir. The control device 16 controls each switching element by a soft switching operation called zero voltage switching (ZVS) in a high output region such as the maximum output of the power receiving device 14. In order to reduce the switching operation loss caused by the high-frequency switching operation, the control device 16 sets the dead time correction value according to the vehicle height condition related to the distance between the primary coil 8a and the secondary coil 31a and the electrical characteristics of the vehicle M, thereby performing the soft switching operation. In the zero voltage switching (ZVS), each switching element performs a process of turning on (switching from the off state to the on state) after the voltage across the two ends is set to zero by discharging the output capacity (parasitic capacity) in the off state during the dead time of each phase.

[0054] For example, in the short-circuit operation, the control device 16 continues the synchronous rectification operation in the zero voltage switch (ZVS) in the high-side arm of each phase, and at the same time turns on only the low-side arm of each phase, thereby short-circuiting the secondary coil 31a. When the low-side arm of each phase is turned on, the current stored in the secondary capacitor 31c connected in series with the secondary coil 31a flows to the capacitor 33 for smoothing through the freewheeling diode of the high-side arm. As a result, the voltage Vr between the two ends of the secondary coil 31a decreases and becomes zero, and the secondary coil 31a no longer functions as a coil because no potential difference is generated. Therefore, the current Ir obtained by generating a magnetic field between it and the power transmission unit 8 is extremely small. At this time, when the secondary power receiving device 14 is viewed from the primary power transmission device 2, the impedance of the secondary side becomes a very large value, and the impedance of the primary side also increases, so the current on the primary side (power transmission current: current It flowing through the primary coil 8a) decreases. That is, the current in the primary power transmission device 2 is controlled by the secondary power receiving device 14.

[0055] Figure 3 1 is a block diagram showing the functional structure of the control device 16 in the contactless power transmission system 1. Figure 3 As shown, the control device 16 includes, for example, a battery ECU 51, an integrated ECU 52, an engine ECU 53, a motor ECU 54, various sensors 55 connected to the battery ECU 51, and various sensors 56 connected to the motor ECU 54. The battery ECU (Electronic Control Unit) 51 includes, for example, an output limit calculation unit 51a and a battery end power calculation unit 51b. The output limit calculation unit 51a calculates the target power limit value for each of the charging and discharging of the power storage device 11. The battery end power calculation unit 51b calculates the actual power (battery end power) at the input and output ends of the power storage device 11 based on the signals of the detection values ​​output from the various sensors 55. The target power limit value calculated by the output limit calculation unit 51a and the battery end power calculated by the battery end power calculation unit 51b are input to, for example, the integrated ECU 52 and the motor ECU 54.

[0056] The integrated ECU 52 includes, for example, a device state grasping unit 52a and a first power limit compensation control unit 52b. The device state grasping unit 52a grasps the states of various devices of the vehicle M based on the target power limit value and the battery end power input from the battery ECU 51, and the output of the power transmission, the rotation speed of the rotary electric machine 13, and the torque of the rotary electric machine 13 input from the motor ECU 54 described later. The various devices of the vehicle M are, for example, the drive control device 3, the power control device 10, and various auxiliary machines. The various auxiliary machines are, for example, a power converter, an air conditioner, and various pumps. The first power limit compensation control unit 52b performs the first compensation control based on the states of the various devices grasped by the device state grasping unit 52a. The first power limit compensation control unit 52b generates a transmission power command related to the contactless power transmission and a drive torque command related to the driving force of the vehicle M in such a way that the power balance at the input and output ends of the power storage device 11 is zero. The first power limit compensation control unit 52b inputs the transmission power command and the motor torque command related to the driving force of the rotary electric machine 13 among the drive torque commands to the motor ECU 54. The first electric power limitation compensation control unit 52 b inputs an engine torque command related to the driving force of the internal combustion engine among the driving torque commands to the engine ECU 53 .

[0057] The engine ECU 53 controls the operation of the internal combustion engine, for example, based on the engine torque command input from the integrated ECU 52. The motor ECU 54 includes, for example, a power transmission processing unit 57 and a motor processing unit 58. The power transmission processing unit 57 includes, for example, a power transmission state grasping unit 57a, a second power limit compensation control unit 57b, a voltage control unit 57c, and a power transmission control unit 57d. The power transmission state grasping unit 57a obtains the output of the power transmission between the power transmission device 2 and the power receiving device 14 based on the signal of the detection value output from the various sensors 56. The second power limit compensation control unit 57b performs the second compensation control described later according to the state of power transmission grasped by the power transmission state grasping unit 57a. The voltage control unit 57c controls the voltage of the power storage device 11 through the voltage controller of the first power conversion device 12 according to the second compensation control performed by the second power limit compensation control unit 57b. The power transmission control unit 57d controls the current of power transmission through the power conversion unit 32 of the power receiving device 14 according to the first compensation control performed by the first power limitation compensation control unit 52b and the second compensation control performed by the second power limitation compensation control unit 57b.

[0058] The motor processing unit 58 includes, for example, a motor state grasping unit 58a, a second power limitation compensation control unit 58b, and a motor control unit 58c. The motor state grasping unit 58a obtains the rotation speed and torque of the rotating electric machine 13 based on the signals of the detection values ​​output from the various sensors 56. The second power limitation compensation control unit 58b performs the second compensation control described later according to the state of the rotating electric machine 13 grasped by the motor state grasping unit 58a. The motor control unit 58c controls the current of the rotating electric machine 13 through the power converter of the first power conversion device 12 according to the first compensation control performed by the first power limitation compensation control unit 52b and the second compensation control performed by the second power limitation compensation control unit 58b.

[0059] The second power limit compensation control unit 57b of the power transmission processing unit 57 and the second power limit compensation control unit 58b of the motor processing unit 58 perform the second compensation control while transmitting and receiving various information to each other. The two second power limit compensation control units 57b and 58b generate commands input to the voltage control unit 57c, the power transmission control unit 57d, and the motor control unit 58c respectively so that the power obtained by the power receiving device 14 from the power transmission device 2 is consistent with the power required for the driving force of the vehicle M. The second compensation control performed by each of the second power limit compensation control units 57b and 58b is performed in the motor ECU 54, and thus the response is relatively fast compared with the first compensation control performed by the first power limit compensation control unit 52b of the integrated ECU 52, which requires processing in other ECUs.

[0060] The various sensors 55 include, for example, current sensors, voltage sensors, and temperature sensors for grasping the state of the power storage device 11 and the power consumption of various auxiliary machines. The various sensors 56 include, for example, current sensors, voltage sensors, temperature sensors, rotation speed sensors, and torque sensors for grasping the output of power transmission and the state of the rotating electric machine 13.

[0061] Figure 4 1 is a block diagram showing a functional configuration related to power supply control of the control device 16 in the contactless power transmission system 1. Figure 4As shown, the control device 16 includes, for example, a driving force control unit 61, a driving required power calculation unit 62, an auxiliary machine power consumption calculation unit 63, a vehicle required power calculation unit 64, a battery target power calculation unit 65, and a target transmission power calculation unit 66. The driving force control unit 61 calculates the target driving force of the vehicle M based on the signals of the detection values ​​output from various sensors related to the driving state of the vehicle M. The various sensors are, for example, a speed sensor that detects the speed of the vehicle M and an accelerator position sensor that detects the accelerator operation amount. The driving required power calculation unit 62 calculates the required power (driving required power) according to the target driving force input from the driving force control unit 61. The auxiliary machine power consumption calculation unit 63 calculates the power consumption of various auxiliary machines (auxiliary machine power consumption) based on the signals of the detection values ​​output from the various sensors 55. The vehicle required power calculation unit 64 calculates the power required in the vehicle M (the vehicle required power) by adding the auxiliary machine power consumption input from the auxiliary machine power consumption calculation unit 63 to the required driving power input from the required driving power calculation unit 62. The battery target power calculation unit 65 calculates the target power required in the power storage device 11 based on the signals of the detection values ​​output from the various sensors 55, etc. The target transmission power calculation unit 66 calculates the target power (the target transmission power) that the power receiving device 14 receives from the power transmitting device 2 by subtracting the target power input from the battery target power calculation unit 65 from the vehicle required power input from the vehicle required power calculation unit 64.

[0062] Figure 5 1 is a block diagram showing a functional configuration of the control device 16 in the contactless power transmission system 1 related to the protection of the power storage device. Figure 5 As shown in FIG. 1 , the control device 16 includes, for example, a power estimation unit 71, a discharge limit protection unit 72, and a charge limit protection unit 73. The power estimation unit 71 calculates the power estimated at the input and output ends of the power storage device 11 (estimated battery end power) based on the signals input from the output limit calculation unit 51a, the battery end power calculation unit 51b, the battery temperature sensor 55a, the auxiliary machine power consumption calculation unit 63, the first current sensor 55b, and the first voltage sensor 55c. It should be noted that the battery temperature sensor 55a outputs the detection value of the temperature of the power storage device 11, the first current sensor 55b outputs the detection value of the current (first current I1) of the power storage device 11, and the first voltage sensor 55c outputs the detection value of the voltage (first voltage V1) of the power storage device 11. The discharge limit protection unit 72 generates a drive torque command input to the motor control unit 58c based on the estimated battery end power input from the power estimation unit 71, for example, by feedback processing related to power. The charge limit protection unit 73 generates a transmission power command to be input to the power transmission control unit 57 d based on the estimated storage battery end power input from the power estimation unit 71 by, for example, feedback processing and feedforward processing related to power.

[0063] Figure 6 1 is a block diagram showing the functional configuration of the power estimation unit 71 and the discharge limit protection unit 72 of the control device 16 in the contactless power transmission system 1. Figure 6 As shown in FIG. 1 , the power estimation unit 71 includes, for example, a power calculation unit 81 and a first addition unit 82. The power calculation unit 81 calculates power from the voltage (first voltage V1) and the current (first current I1) of the power storage device 11. The first addition unit 82 calculates the estimated battery end power by adding the auxiliary machine power consumption output from the auxiliary machine power consumption calculation unit 63 to the power output from the power calculation unit 81. The discharge limit protection unit 72 includes, for example, a first subtraction unit 83, a low-pass filter 84, a first limit processing unit 85, a second subtraction unit 86, a third subtraction unit 87, a fourth subtraction unit 88, a controller 89, a second addition unit 90, and a second limit processing unit 91. The first subtraction unit 83 calculates the difference power by subtracting the estimated battery end power from the battery end power output from the battery end power calculation unit 51 b. The differential power output from the first subtraction unit 83 is subjected to high-frequency component removal by the low-pass filter 84 and to prescribed restriction by the first restriction processing unit 85. The target power limit value output from the output restriction calculation unit 51a is input to the controller 89 after the differential power output from the first restriction processing unit 85 is subtracted by the second subtraction unit 86, a prescribed margin is subtracted by the third subtraction unit 87, and the estimated battery terminal power is subtracted by the fourth subtraction unit 88.

[0064] The controller 89 performs, for example, a predetermined feedback process, etc. The second adding unit 90 calculates a driving torque command by adding a driving torque command related to the driving force of the internal combustion engine to the control operation value output from the controller 89. The second limiting unit 91 imposes a predetermined limit on the driving torque command output from the second adding unit 90.

[0065] Figure 7 1 is a block diagram showing the functional configuration of the power estimation unit 71 and the charge limit protection unit 73 of the control device 16 in the contactless power transmission system 1. Figure 7As shown in FIG. 1 , the charge limit protection unit 73 includes, for example, a first subtraction unit 83, a low-pass filter 84, a first limit processing unit 85, a second subtraction unit 86, a third subtraction unit 87, a fourth subtraction unit 88, a controller 89, a third addition unit 92, a fifth subtraction unit 93, a transmission power limit calculation unit 94, and a third limit processing unit 95. The third addition unit 92 calculates the transmission power command by adding the control operation value output from the controller 89 to the transmission power command related to the driving force of the internal combustion engine. The fifth subtraction unit 93 subtracts the driving power, the power loss, and the auxiliary machine consumption power from the target power limit value output from the output limit calculation unit 51a. It should be noted that the driving power is the power related to the driving force of the vehicle M, and the power loss is the power loss related to the power conversion in the drive control device 3. The transmission power limit calculation unit 94 calculates the transmission power limit in the predetermined feedforward processing based on the operation value output from the fifth subtraction unit 93 and the transmission power. The third limit processing unit 95 outputs a transmission power command by, for example, selecting a smaller one based on the transmission power command output from the third adding unit 92 and the transmission power limit output from the transmission power limit calculation unit 94 .

[0066] By using the above-mentioned non-contact power transmission system 1, in addition to the remaining capacity (SOC: State Of Charge) of the power storage device 11 of the vehicle M, the power transmitted from the power transmission device 2 is a virtual SOC, thereby suppressing the occurrence of problems such as heat generation and shortening of the life of the power storage device 11, and charging can be performed while the vehicle M is moving, so that the capacity of the power storage device 11 does not need to be increased. In addition, the time required to charge the power storage device 11 does not increase.

[0067] Figure 8 1 is a diagram showing an example of the configuration of a vehicle M and an information providing device 200. The vehicle M communicates with the information providing device 200 via a network NW. In addition to the general configuration of a vehicle, the vehicle M is equipped with a drive control device 3, a power control device 10, a control device 16, a TCU (Telematics Control Unit) 100, and a positioning device 110. The vehicle M is, for example, an electric vehicle that runs exclusively on the power from the power storage device 11.

[0068] The control device 16 further includes an information upload unit 60. The information upload unit 60 transmits (uploads) data such as power consumption of the vehicle M to the information providing device 200 via the TCU 100. The TCU 100 is a wireless communication device. The control device 16 transmits the measurement results measured by the current sensor, voltage sensor, temperature sensor, etc. installed in the power storage device 11 to the information providing device 200 via the TCU 100. The control device 16 may also transmit the charge upper limit voltage recognized by the power storage device 11, the differential data of the discharge voltage measured for a certain period of time, etc. to the information providing device 200 via the TCU 100.

[0069] The positioning device 110 is, for example, a GNSS (Global Navigation Satellite System) receiver, and determines the position of the vehicle M based on signals received from GNSS satellites, and outputs the position as position information.

[0070] The information providing device 200 includes, for example, a communication unit 210, an acquisition unit 220, a calculation unit 230, a providing unit 240, and a storage unit 250. The components other than the communication unit 210 and the storage unit 250 are implemented by executing a program (software) by a hardware processor such as a CPU (Central Processing Unit). Some or all of these components can be implemented by hardware (including circuitry) such as LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), GPU (Graphics Processing Unit), etc., or can be implemented by the coordination of software and hardware. The program can be pre-stored in a storage device such as an HDD (Hard Disk Drive) or a flash memory (a storage device having a non-temporary storage medium), or can be stored in a removable storage medium such as a DVD or CD-ROM (a non-temporary storage medium), and installed by assembling the storage medium in a drive device.

[0071] The storage unit 250 may be realized by the above-mentioned various storage devices, or by EEPROM (Electrically Erasable Programmable Read Only Memory), ROM (Read Only Memory), RAM (Random Access Memory), etc. The storage unit 250 stores the acquired data 252 .

[0072] The communication unit 210 is a communication interface for connecting to the network NW. The communication unit 102 is, for example, a network card.

[0073] The acquisition unit 220 acquires a set of data and position information indicating a position where the data is measured from the control device 16 via the TCU 100, the network NW, and the communication unit 210. The acquisition unit 220 stores the acquired data and the like in the storage unit 250 as acquired data 252 described later. As described above, the acquired data includes data related to power consumption. The acquisition unit 220 may also acquire the power receiving information of the power storage device 11 together with the data related to power consumption.

[0074] The calculation unit 230 processes the acquired data 252. The calculation unit 230 performs filtering processing by averaging the acquired data 252 of the vehicle M for an observation period of about 3 seconds, for example. It is assumed that the acquired data 252 is exclusively power consumption. The calculation unit 230 calculates the total value of power consumption (regional power consumption) in each 1 [km] × 1 [km] division (area) based on the combination of power consumption and position information, for example, and performs grid processing in a manner that can display the power consumed at that moment.

[0075] The providing unit 240 visualizes the processing result obtained by the grid processing performed by the calculating unit 230, and transmits it to an external device via the network NW. The external device is, for example, a device (terminal device or server device) for viewing a display screen by a monitor of a power company. Visualization means, for example, processing the processing result of the grid processing in the form of a map or in the form of a table and providing the processing result to the external device.

[0076] Fig. 9 This is an example of a processing result obtained by the calculation unit 230 performing the grid processing. The density indicates the amount of power consumption. The darker the density, the more power is consumed, and the lighter the density, the less power is consumed.

[0077] It should be noted that the acquired data 252 may be data related to power consumption or data related to the SOC of the power storage device 11. The calculation unit 230 may process the power receiving information of the power storage device 11 acquired by the acquisition unit 220 and add information such as how much power the vehicle M has received and whether the power storage device 11 has been charged. The providing unit 240 may add further information to the acquired data 252 after processing using the power receiving information added by the calculation unit 230. The total of the power originally charged in the power storage device 11 of the vehicle M, the power consumption of the onboard equipment mounted on the vehicle M, and the power received by the vehicle M during driving may be calculated. The details of these information may also be referenced.

[0078] Fig.101 is a flowchart showing an example of the operation of the first embodiment. First, the acquisition unit 220 acquires information from the vehicle M (step S100). Here, the acquisition unit 220 acquires the power consumption of the vehicle M.

[0079] The calculation unit 230 performs filtering processing on the acquired data 252 (step S110 ).

[0080] The calculation unit 230 performs meshing processing on the acquired data 252 after the filtering processing in the process of step S110 based on the position information (step S120). Here, the processing is performed so as to become mesh data of 1 [km] × 1 [km].

[0081] The providing unit 240 maps the gridded acquired data 252 (step S130 ).

[0082] The providing unit 240 transmits the acquired data 252 after mapping to an external device (step S140 ).

[0083] According to the first embodiment described above, the information providing device 200 acquires the power consumption during traveling of the vehicle M, visualizes the power consumption, and transmits the data to an external device, thereby being able to clearly convey the power supply required for each area.

[0084] <Second embodiment>

[0085] The second embodiment will be described below. The second embodiment shares the same structure as the first embodiment, so duplicate descriptions are omitted. In the second embodiment, the size of the division of the mesh data can be changed for each region in the meshing process.

[0086] The power transmission device 2 is installed in the city, for example, before a traffic light or intersection, and is assumed to supply power when the vehicle M stops waiting for a traffic light, etc. On the other hand, the power transmission device 2 is installed at intervals of, for example, 50 [m] in places other than the city, and is assumed to receive power while the vehicle M is traveling.

[0087] When the contactless power transmission system 1 is used, for example, when the vehicle M stops for a predetermined time T1 (e.g., more than ten seconds), the power storage device 11 of the vehicle M is fully charged. Therefore, the size of the division processed by the grid in the urban area is suitable as long as the cumulative parking time during the period of passing through the division is about the predetermined time T1. Fig.11 This is a diagram showing an example of average on-road stop time in a certain area. Fig.11The grid data is 1[km]×1[km], and the longer the average parking time on the road, the darker the density, and the shorter the average parking time on the road, the lighter the density. In the urban area, there are many places with traffic lights and intersections, so the average parking time tends to be long, while in the suburbs, there are few places with traffic lights and intersections, so the average parking time tends to be short.

[0088] The calculation unit 230 can change the size of the division of the mesh data based on the position information when meshing the acquired data 252. For example, the calculation unit 230 makes the size of the urban area 10 [km] × 10 [km] and the size of the area outside the urban area 1 [km] × 1 [km].

[0089] By providing the area data to the calculation unit 230 in advance, the calculation unit 230 can determine which area corresponds to the urban area.

[0090] When the division of the grid data is reduced in the urban area, it is assumed that there is no power transmission device 2 in the division, or the power transmission device 2 is biased in the division, so it is not preferred. On the other hand, if the power transmission device 2 is laid at intervals of 50 [m], detailed data can be obtained by setting the division as small as possible under the premise of being larger than 50 [m]. For this reason, the calculation unit 230 makes the division of the urban area larger than the division of the area other than the urban area. As a result, the power demand can be accurately grasped, and data for judging the priority supply of power to the place in need can be provided.

[0091] According to the second embodiment described above, the required power supply for each area can be clearly communicated as in the first embodiment. In addition, by switching the size of the division of the mesh data between the urban area and the area other than the urban area, more appropriate information on the power supply can be provided.

[0092] The above-described embodiment can be expressed as follows.

[0093] A device comprising:

[0094] a storage medium storing computer-readable instructions; and

[0095] One or more processors connected to the storage medium,

[0096] The one or more processors execute the following processing by executing the instructions that can be read by the computer:

[0097] acquiring power receiving information and position information from a communication device mounted on a vehicle through communication, the vehicle having a power receiving device that receives power from a power supply device installed on a road in a non-contact manner, the power receiving information being related to the power receiving;

[0098] calculating regional power consumption by summing up the power receiving information for each area based on the position information; and

[0099] The power consumption in the area is visualized and provided to other devices.

[0100] Although specific embodiments of the present invention have been described above using the embodiments, the present invention is not limited to such embodiments at all, and various modifications and substitutions can be made without departing from the gist of the present invention.

Claims

1. An information providing device, wherein: The information providing device comprises: an acquisition unit that acquires power reception information and position information related to power reception through communication from a communication device mounted on a vehicle having a power receiving device that receives power in a contactless manner from a power supply device installed on a road; a calculation unit that calculates regional power consumption by totaling the power reception information for each region based on the position information; and A providing unit visualizes the power consumption of the area and provides it to other devices.

2. The information providing device according to claim 1, wherein: The calculation unit switches the size of the area between an urban area and an area other than the urban area.

3. The information providing device according to claim 2, wherein: The calculation section makes the size of the area of ​​the urban area larger than the size of the area of ​​a region other than the urban area.

4. The information providing device according to claim 1, wherein: The acquisition unit acquires information on power consumption of an onboard device mounted on the vehicle in addition to the power reception information related to the power reception. The providing unit further visualizes the power consumption of the in-vehicle device and provides the visualization to other devices.

5. A method for providing information, wherein: The information providing method enables the information providing device to perform the following processing: acquiring, by communication, power receiving information and position information related to the power reception from a communication device mounted on a vehicle having a power receiving device that receives power in a contactless manner from a power supply device installed on a road; calculating regional power consumption by aggregating the power reception information for each region based on the position information; and The power consumption in the area is visualized and provided to other devices.

6. A storage medium storing a program, wherein: The program is used to cause the processor of the information providing device to execute the following processing: acquiring, by communication, power receiving information and position information related to the power reception from a communication device mounted on a vehicle having a power receiving device that receives power in a contactless manner from a power supply device installed on a road; calculating regional power consumption by aggregating the power reception information for each region based on the position information; and The power consumption in the area is visualized and provided to other devices.

Images