JP6623143B2 - Battery-assisted bicycle and battery state monitoring method for battery-assisted bicycle - Google Patents

Description

  The present invention relates to a battery-assisted bicycle and a battery state monitoring method for a battery-assisted bicycle.

  A battery-assisted bicycle (power-assisted bicycle) includes a rechargeable battery. When the battery runs out and the battery runs out, or the battery deteriorates, the comfortable use of the battery-assisted bicycle is impaired. For this reason, the user is highly interested in the state of the battery such as the time required to fully charge the battery and the distance that can be traveled with the current remaining battery level.

  As shown in Patent Literature 1, a portable wireless communication terminal is disclosed that suppresses the occurrence of battery exhaustion by notifying information about the remaining battery level.

JP 2007-147434 A

  In view of the above circumstances, it is an object of the present invention to provide a battery-assisted bicycle and a battery-assisted monitoring method for the battery-assisted bicycle that can improve user convenience.

The present invention provides a battery that supplies driving power to a motor of a battery-assisted bicycle, a battery state detection unit that detects a state of the battery, and an event for turning off the power-assisted bicycle, A notification unit for notifying information based on the state of the battery detected by the battery state detection unit; and a control unit for detecting whether a key is pulled out from the battery- assisted bicycle , wherein the notification unit includes the key After the battery is pulled out from the battery-assisted bicycle, the information based on the state of the battery is notified, and after the information based on the state of the battery is notified by the notification unit, when the notification unit is operated by the user, The battery-assisted bicycle is characterized in that a power source of the battery-assisted bicycle is turned off .

  By notifying information based on the state of the battery, the user can easily know the state of the battery. As a result, user convenience can be improved.

  In the battery-assisted bicycle according to the present invention, after the event for turning off the battery of the battery-assisted bicycle occurs, the notification unit further notifies information related to the management of the battery.

  By notifying information related to battery management, it is possible to improve user convenience regarding battery management.

  The battery-assisted bicycle according to the present invention further includes a component state detection unit that detects a state of a part of the battery-assisted bicycle excluding the battery, and after the event for turning off the power-assisted bicycle occurs, The notification unit further notifies information based on the state of the component detected by the component state detection unit.

  By notifying information based on the state of the component, the user can easily know the state of the component. As a result, user convenience can be improved.

  In the battery-assisted bicycle of the present invention, when the battery of the battery-assisted bicycle is off and the battery is removed from the battery-assisted bicycle, the notification unit detects the battery detected by the battery state detection unit. It is characterized by notifying information based on the state of.

  Accordingly, it is possible to improve the convenience of the user when it is assumed that the user uses the battery-assisted bicycle again after the state where the battery-assisted bicycle is not used for a long time.

  In the battery-assisted bicycle according to the present invention, when the state in which the power supply of the battery-assisted bicycle is off continues for a predetermined time or more, the notification unit notifies information based on the state of the battery detected by the battery state detection unit. It is characterized by doing.

  Accordingly, it is possible to improve the convenience of the user when it is assumed that the user uses the battery-assisted bicycle again after the state where the battery-assisted bicycle is not used for a long time.

The present invention provides a battery state detecting step for detecting a state of a battery that supplies driving power to a motor of the battery-assisted bicycle, and the battery state detecting step after an event for turning off the power of the battery-assisted bicycle occurs. A notification step for notifying information based on the state of the battery detected by the step, and a step for detecting whether or not a key is pulled out from the battery- assisted bicycle, wherein the key is pulled out from the battery- assisted bicycle Thereafter, information based on the state of the battery is notified, and after receiving the information based on the state of the battery, when the input from the user is received, the power-assisted bicycle is turned off. This is a battery state monitoring method for a battery-assisted bicycle.

  According to the present invention, user convenience can be improved.

It is a block diagram which shows the structure of the battery state monitoring system which concerns on the 1st Embodiment of this invention. 1 is a side view showing a configuration of a battery-assisted bicycle according to a first embodiment of the present invention. 1 is a block diagram showing an electrical configuration of a battery-assisted bicycle according to a first embodiment of the present invention. It is a flowchart which shows the procedure of the state monitoring of the battery which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the electric constitution of the battery-assisted bicycle which concerns on the 1st modification of the 1st Embodiment of this invention. It is a flowchart which shows the procedure of the state monitoring of the battery which concerns on the 1st modification of 1st Embodiment. It is a block diagram which shows the electric constitution of the battery-assisted bicycle which concerns on the 2nd modification of the 1st Embodiment of this invention. It is a block diagram which shows the electrical structure of the battery-assisted bicycle which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows the procedure of the battery state monitoring which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the electrical structure of the battery-assisted bicycle which concerns on the modification of the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 shows a configuration of a battery state monitoring system 100 according to the first embodiment of the present invention. As shown in FIG. 1, the battery state monitoring system 100 includes a battery-assisted bicycle 1, a terminal 2, and a terminal 3.

  The battery-assisted bicycle 1 has a wireless communication function. The battery-assisted bicycle 1 can be connected to the network NW via the wireless base station BS by wireless communication. The terminal 2 is a terminal used by the user of the battery-assisted bicycle 1. For example, the terminal 2 is a mobile terminal device such as a smartphone. The terminal 2 has a wireless communication function. The terminal 2 can be connected to the network NW via the radio base station BS by radio communication. The terminal 2 can also be connected to the network NW without going through the radio base station BS. The terminal 2 may be a personal computer installed in the user's home. The terminal 3 is a terminal used by a store of the battery-assisted bicycle 1. For example, the terminal 3 is a personal computer. The terminal 3 can be connected to the network NW. The terminal 3 may be a mobile terminal device used by a staff member (salesperson) of the store. The dealer may be a repair shop for the battery-assisted bicycle 1.

  The battery-assisted bicycle 1 communicates with the terminal 2 via the radio base station BS and the network NW. The battery-assisted bicycle 1 may directly communicate with the terminal 2 by wireless communication according to a standard such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). The battery-assisted bicycle 1 communicates with the terminal 3 via the radio base station BS and the network NW. Below, description regarding network devices, such as the radio base station BS and the network NW, in communication between the battery-assisted bicycle 1 and the terminal 2 or the terminal 3 is omitted.

  FIG. 2 is a side view showing the configuration of the battery-assisted bicycle 1. As shown in FIG. 2, the battery-assisted bicycle 1 includes a frame 10. The frame 10 includes a front fork 11, a head pipe 12, and a down tube 13. Further, the frame 10 includes a seat stay 15 and a chain stay 16. Hereinafter, the front side (right side in FIG. 2) of the battery-assisted bicycle 1 will be described as the front side, and the rear side (left side in FIG. 2) of the battery-assisted bicycle 1 will be described as the rear side in accordance with the normal traveling direction of the battery-assisted bicycle 1. .

  The front fork 11 is disposed at the front portion of the battery-assisted bicycle 1, and a head pipe 12 is connected to the upper end portion of the front fork 11. One end of the down tube 13 is connected to the rear side of the head pipe 12. Further, a front-rear direction member 14A is connected to a portion directly above the portion of the head pipe 12 to which the down tube 13 is connected.

  The front-rear direction member 14A is connected to the vertical direction member 14B. The front / rear direction member 14 </ b> A extends substantially in the front / rear direction and has a slope that descends toward the rear. Moreover, the up-down direction member 14B extends substantially in the up-down direction, and the upper portion is inclined rearward. The rear end portion of the front-rear direction member 14A is joined to the lower end position of the up-down direction member 14B. In addition, one end of the front / rear direction member 14A is connected to the head pipe 12, and the lower end of the up / down direction member 14B and the other end of the down tube 13 are connected.

  One end of the seat stay 15 is connected to the rear side of the upper end of the vertical member 14B. One end portion of the chain stay 16 is connected to the rear side of the lower end portion of the vertical member 14B. The other end of the seat stay 15 and the other end of the chain stay 16 are connected to each other.

  A front wheel 21 is rotatably attached to the front fork 11 in the frame 10. A rear wheel 22 is rotatably attached to a connecting portion between the seat stay 15 and the chain stay 16. A sprocket (hereinafter referred to as “rear sprocket”) (not shown) is attached to the rear wheel 22 coaxially with the rear wheel 22.

  A handle stem 23 is inserted into the head pipe 12. The handle stem 23 is rotatable with respect to the head pipe 12. A handle 24 is attached to the upper end of the handle stem 23. A seat post 25 is fitted into the vertical member 14B. A saddle 26 is attached to the upper end of the seat post 25.

  One end of a crank 27 is attached to a connecting portion between the vertical member 14B and the chain stay 16 via a sprocket (not shown) (hereinafter referred to as “front sprocket”). A pedal 28 is attached to the other end of the crank 27. The crank 27 and the pedal 28 are rotatable around a rotation axis along the left-right direction (a direction penetrating the paper surface of FIG. 2).

  A chain 29 is wound around the front sprocket and the rear sprocket. When the pedaling force of the driver or the like is applied to the pedal 28, the front sprocket rotates. The rotation of the front sprocket is transmitted to the rear sprocket via the chain 29. As a result, the rear sprocket rotates and the rear wheel 22 rotates due to the rotation of the rear sprocket.

  An electric motor 30 is attached to the axle of the front wheel 21. The electric motor 30 is a motor that generates a driving force for rotating the front wheels 21. The rotation of the electric motor 30 is decelerated by a reduction mechanism (not shown) and transmitted to the front wheels 21. As a result, the electric motor 30 applies auxiliary torque to the front wheels 21. Although an appropriate motor can be used as the electric motor 30, for example, a brushless DC motor can be preferably used.

  A battery 31 is detachably attached to the vertical member 14B at the rear part of the vertical member 14B. The battery 31 is electrically connected to the electric motor 30 and can supply power to the electric motor 30. The battery 31 is made of, for example, a lithium ion secondary battery, and can be repeatedly used by charging. Further, when the electric motor 30 can generate regenerative power, the battery 31 can also charge this regenerative power.

  FIG. 3 shows the electrical configuration of the battery-assisted bicycle 1. As shown in FIG. 3, the battery-assisted bicycle 1 includes an electric motor 30, a battery 31, a battery state detection unit 41, an input torque detection unit 42, a crank rotation number detection unit 43, an operation panel 44 (notification unit), and a motor drive circuit. 45, a motor torque detection unit 46, a motor rotation number detection unit 47, a wireless communication unit 48 (notification unit), and a control unit 50.

  The battery state detection unit 41, the input torque detection unit 42, the crank rotation number detection unit 43, the operation panel 44, the motor drive circuit 45, the motor torque detection unit 46, the motor rotation number detection unit 47, and the wireless communication unit 48 are a control unit. 50. The electric motor 30 is connected to the motor drive circuit 45. In the present embodiment, the battery 31 is connected to the battery state detection unit 41, the electric motor 30, and the control unit 50, but may be connected only to the control unit 50. The battery 31 is also connected to components such as the operation panel 44 and the wireless communication unit 48, but the connection between the battery 31 and each component is omitted in FIG.

  The battery 31 supplies driving power to the electric motor 30. The battery 31 supplies power for the operation of each component to components such as the battery state detection unit 41, the operation panel 44, the wireless communication unit 48, and the control unit 50.

  The battery state detection unit 41 is mounted on the battery 31. That is, the battery state detection unit 41 is housed in the case of the battery 31. Alternatively, the battery state detection unit 41 is provided on the surface of the case of the battery 31. The battery state detection unit 41 detects the state of the battery 31 and outputs a battery state signal indicating the detected state of the battery 31 to the control unit 50. For example, the battery state detection unit 41 includes a voltage detection circuit and detects the remaining amount of the battery 31 as the state of the battery 31 by detecting the output voltage of the battery 31. The battery state detection unit 41 may include a temperature sensor and detect the temperature of the battery 31 as the state of the battery 31. The battery state detection unit 41 may detect the predicted travelable distance as the state of the battery 31 by calculating the predicted travelable distance based on the detected remaining amount of the battery 31. For example, the battery state detection unit 41 stores a table indicating a correspondence relationship between the remaining amount of the battery 31 and the estimated travelable distance, and based on the table, the predicted traveling corresponding to the detected remaining amount of the battery 31 is stored. Calculate the possible distance.

  The input torque detection unit 42 includes a torque sensor. The torque sensor is provided at a position where the crank 27 and the front sprocket shown in FIG. 2 are provided. The input torque detection unit 42 detects an input torque due to a pedaling force applied to the pedal 28 when a driver or the like depresses the pedal 28, and controls an input torque signal indicating the magnitude of the detected input torque. Output to 50.

  As the torque sensor, a known sensor can be used as appropriate. For example, it is possible to use a torque sensor including an elastic body such as a spring and a potentiometer that obtains a displacement amount at a fixed portion to which the torque sensor is fixed from a displacement amount of the elastic body. The elastic body in this torque sensor is disposed between the crank 27 and the front sprocket. The elastic body is displaced according to the input torque generated by the depression of the pedal 28 of the driver or the like. The displacement amount of the elastic body at this time is converted into a displacement amount at the fixed portion by a mechanism such as a cam and a planetary gear, and the converted displacement amount is converted into an electric signal by a potentiometer. Alternatively, a non-contact type torque sensor composed of a magnetostrictive material having a magnetostrictive effect and a detection coil can be used.

  The crank rotation speed detection unit 43 includes a rotation sensor. The crank rotation number detection unit 43 detects the rotation number of the crank 27 and outputs a crank rotation number signal indicating the detected rotation number of the crank 27 to the control unit 50. The crank rotation number detector 43 reads the rotation number of the crank 27 with a non-contact rotation sensor.

  The operation panel 44 includes an operation input unit and a display unit. The operation input unit includes a power switch and an assist mode switch. The power switch is a switch for switching activation (on) and stop (off) of the battery-assisted bicycle 1. The assist mode changeover switch is a switch for changing the magnitude of the auxiliary torque by the electric motor 30. The operation panel 44 outputs an operation input signal indicating the content of the operation input to the operation input unit to the control unit 50.

  The display unit on the operation panel 44 displays various types of information. The operation panel 44 is attached to the handle 24. Since the operation panel 44 is attached to the handle 24, the driver can easily operate and visually recognize the operation panel 44. For example, the display unit in the operation panel 44 includes a liquid crystal panel.

  For example, the motor drive circuit 45 performs drive control of the electric motor 30 by a PWM (Pulse Width Modulation) method. The motor drive circuit 45 extracts drive power for driving the electric motor 30 from the battery 31 and supplies the drive power to the electric motor 30 based on the auxiliary torque signal output from the control unit 50. The electric motor 30 rotationally drives the front wheels 21 by generating an auxiliary torque corresponding to the drive power supplied from the motor drive circuit 45. An auxiliary driving force is generated by the rotational driving of the front wheel 21. Thus, in the present embodiment, a so-called front wheel drive system in which auxiliary torque is applied from the electric motor 30 to the front wheels 21 is adopted. The electric motor 30 may be attached to any wheel of the front wheel 21 and the rear wheel 22. For example, a rear wheel drive system in which auxiliary torque is applied to the rear wheel 22 can be employed.

  The motor torque detection unit 46 includes a torque sensor. The motor torque detection unit 46 detects the torque of the electric motor 30 and outputs a motor torque detection signal indicating the magnitude of the detected torque to the control unit 50. The torque generated by the electric motor 30 is proportional to the current supplied to the electric motor 30. Therefore, the motor torque detector 46 may detect the torque of the electric motor 30 based on the current supplied to the electric motor 30.

  The motor rotation speed detector 47 includes a rotation sensor. The motor rotation speed detection unit 47 detects the rotation speed of the electric motor 30 and outputs a rotation speed detection signal indicating the detected rotation speed to the control unit 50. For example, when the electric motor 30 is configured by a brushless DC motor, the motor rotation number detection unit 47 includes a magnetic sensor such as a Hall element in order to detect the rotation position of the magnet rotor. This magnetic sensor is provided along with the electric motor 30. In the present embodiment, the motor rotation speed detector 47 detects the rotation speed of the electric motor 30 based on the output signal of the magnetic sensor. The motor rotation number detector 47 may be configured to include an optical rotation detector. For example, an optical rotation detector configured to read light from a light source such as a light emitting diode with a light receiving element through a position detection pattern on a slit disk can be used.

  The wireless communication unit 48 is provided in a part different from the battery 31 in the battery-assisted bicycle 1. For example, the wireless communication unit 48 is provided under the saddle 26 or at a place such as the handle 24. The wireless communication unit 48 may be mounted on the battery 31. That is, the wireless communication unit 48 may be stored in the case of the battery 31. Alternatively, the wireless communication unit 48 may be provided on the surface of the case of the battery 31. The wireless communication unit 48 includes a wireless circuit such as an oscillator and an antenna. The wireless communication unit 48 performs wireless communication with the terminal 2 and the terminal 3. Information for performing wireless communication with the terminal 2 and the terminal 3 is stored in advance in the memory.

  For example, the control unit 50 includes an MCU (Micro Controller Unit). The MCU is an LSI (Large Scale Integration) in which a single semiconductor chip is integrated with a computer system including circuits such as a CPU, a memory, an input / output circuit, and a timer circuit. Based on various signals output from the input torque detection unit 42, the crank rotation number detection unit 43, the motor torque detection unit 46, and the motor rotation number detection unit 47, the control unit 50 applies the auxiliary driving force to the electric motor 30. Auxiliary torque is calculated when Furthermore, the control unit 50 calculates drive power corresponding to the auxiliary torque generated by the electric motor 30. The control unit 50 outputs an auxiliary torque signal indicating the calculated drive power to the motor drive circuit 45.

  The control unit 50 controls each part in addition to the drive control of the electric motor 30. For example, the control unit 50 controls the operation panel 44 and the wireless communication unit 48 to notify information based on the state of the battery 31 detected by the battery state detection unit 41.

  The control unit 50 may calculate the predicted travelable distance based on the remaining amount of the battery 31 detected by the battery state detection unit 41. For example, the control unit 50 stores a table indicating a correspondence relationship between the remaining amount of the battery 31 and the estimated travelable distance, and based on the table, the predicted travelable distance corresponding to the detected remaining amount of the battery 31 is stored. Is calculated. Therefore, the battery state detection unit in the battery-assisted bicycle according to the present invention may include the battery state detection unit 41 and the control unit 50 of the present embodiment.

  The predicted travelable distance may be calculated in consideration of a travel pattern. For example, the battery state detection unit 41 periodically detects the remaining amount of the battery 31 while the battery-assisted bicycle 1 is traveling. The control unit 50 analyzes the traveling pattern according to the time change of the remaining amount of the battery 31. For example, during traveling that requires a large load, such as traveling on an uphill, power consumption increases in order to generate a larger auxiliary torque. That is, the decrease rate of the remaining amount of the battery 31 changes according to the running pattern. For example, when the power supply of the battery-assisted bicycle 1 is turned off from on, the control unit 50 analyzes the running pattern during running. Based on the analyzed travel pattern, the controller 50 predicts a travel pattern in the next travel. For example, when the battery-assisted bicycle 1 is used for reciprocating travel such as commuting, the travel pattern of the return path can be predicted from the travel pattern of the forward path. The control unit 50 calculates a predicted travelable distance based on the predicted travel pattern.

  The control unit 50 may calculate a predicted charging time necessary for fully charging the battery 31 based on the remaining amount of the battery 31 detected by the battery state detection unit 41. For example, the control unit 50 stores a table indicating the correspondence between the remaining amount of the battery 31 and the predicted charging time, and calculates the predicted charging time corresponding to the detected remaining amount of the battery 31 based on the table. To do.

  After an event for turning off the power of the battery-assisted bicycle 1 occurs, the power of the battery-assisted bicycle 1 is apparently turned off. For example, the event for turning off the power of the battery-assisted bicycle 1 is an input of a power-off instruction when the user operates the operation panel 44. The event for turning off the battery of the battery-assisted bicycle 1 may be a state where the traveling of the battery-assisted bicycle 1 is stopped for a predetermined time or more. For example, the operation panel 44 has a power lamp. When the power of the battery-assisted bicycle 1 is on, the power lamp on the operation panel 44 is lit. When an event for turning off the power of the battery-assisted bicycle 1 occurs, the power lamp on the operation panel 44 is turned off. Thereby, the user is notified that the power of the battery-assisted bicycle 1 is turned off. Even if the power supply of the battery-assisted bicycle 1 is apparently off, the supply of driving power from the battery 31 continues.

  After the power supply of the battery-assisted bicycle 1 is apparently turned off due to the occurrence of an event for turning off the power supply of the battery-assisted bicycle 1, the battery state detection unit 41 detects the state of the battery 31. The display unit on the operation panel 44 displays the state of the battery 31 based on the battery state information indicating the state of the battery 31 detected by the battery state detection unit 41. Thereby, the display unit in the operation panel 44 notifies the user of the battery-assisted bicycle 1 of information based on the state of the battery 31. Further, the wireless communication unit 48 transmits the battery state information to the terminal 2 and the terminal 3. As a result, the wireless communication unit 48 notifies the user of the battery-assisted bicycle 1 and the store of the battery-assisted bicycle 1 of information based on the state of the battery 31.

  After detection of the state of the battery 31 by the battery state detection unit 41, notification by the display unit on the operation panel 44, and notification by the wireless communication unit 48, supply of drive power from the battery 31 to the electric motor 30 is stopped. The Thereby, the power supply of the battery-assisted bicycle 1 is turned off. After an event for turning off the power of the battery-assisted bicycle 1 occurs, the driving power is supplied from the battery 31 to the electric motor 30 unless the user inputs a power-on instruction by operating the operation panel 44. It is forcibly stopped. The power supply state of the battery-assisted bicycle 1 may be independent of the running state of the battery-assisted bicycle 1. For example, even when the battery-assisted bicycle 1 is running, the power-assisted bicycle 1 may be turned off when the user inputs a power-off instruction by operating the operation panel 44.

  FIG. 4 shows a procedure for monitoring the state of the battery 31. A method for monitoring the state of the battery 31 will be described with reference to FIG.

  When the power switch in the operation input unit of the operation panel 44 is operated, the power on is instructed. The control unit 50 detects a power-on instruction based on an operation input signal output from the operation input unit of the operation panel 44 and starts control for driving the electric motor 30. As a result, the power of the battery-assisted bicycle 1 is turned on, and the motor drive circuit 45 starts supplying drive power from the battery 31 to the electric motor 30 (step S100).

  After step S100, the control unit 50 determines whether or not an instruction to turn off the power is given based on the operation input signal output from the operation input unit of the operation panel 44 (step S105). In step S105, if it is not instructed to turn off the power, the determination in step S105 is performed again.

  In step S <b> 105, when an instruction to turn off the power is given, the control unit 50 instructs the battery state detection unit 41 to detect the state of the battery 31. The battery state detection unit 41 detects the state of the battery 31 and outputs a battery state signal indicating the detected state of the battery 31 to the control unit 50. The control unit 50 generates battery state information indicating the state of the battery 31 based on the battery state signal output from the battery state detection unit 41 (step S110).

  After step S110, the control unit 50 outputs the battery status information to the display unit on the operation panel 44 and the wireless communication unit 48. The display unit on the operation panel 44 displays the state of the battery 31 based on the battery state information, thereby notifying the user of the battery-assisted bicycle 1 of the information based on the state of the battery 31. The wireless communication unit 48 notifies the user of the battery-assisted bicycle 1 and the store of the battery-assisted bicycle 1 of information based on the state of the battery 31 by transmitting the battery state information to the terminal 2 and the terminal 3 (step S115). . In this example, when an operation to turn off the power of the battery-assisted bicycle 1 is performed, the display unit on the operation panel 44 and the wireless communication unit 48 are in the state of the battery 31 detected by the battery state detection unit 41. Notify information based.

  After step S115, the control unit 50 stops the control for driving the electric motor 30. Thereby, the power supply of the battery-assisted bicycle 1 is turned off, and the motor drive circuit 45 stops the supply of drive power from the battery 31 to the electric motor 30 (step S120).

  For example, when a predetermined time has elapsed after the processing in step S115, the processing in step S120 is performed. For example, the predetermined time is 10 seconds. After the state of the battery 31 is displayed on the display unit on the operation panel 44, the operation input unit on the operation panel 44 may accept an input from the user. For example, when the operation input unit in the operation input unit of the operation panel 44 is operated, the process in step S120 is performed. Thereby, the state of the battery 31 can be notified more reliably. When the notification by the display unit on the operation panel 44 is unnecessary, the process in step S120 may be performed immediately after the notification by the wireless communication unit 48 is performed in step S115.

  The process in step S110 may be performed before turning off the power is instructed. That is, after the process in step S100 is performed, the process in step S110 may be performed before the process in step S105 is performed. In this case, if it is not instructed to turn off the power in step S105, the process in step S110 is performed. When the state where the driving of the battery-assisted bicycle 1 is stopped continues for a predetermined time or longer, the processing from step S110 to step S120 may be performed.

  As described above, the display unit on the operation panel 44 displays the state of the battery 31 based on the battery state information. For example, the display unit on the operation panel 44 displays the remaining amount of the battery 31. Thereby, the user can easily know whether or not the battery 31 needs to be charged. The display unit on the operation panel 44 may display the temperature of the battery 31. As a result, the user can easily determine whether or not to store the battery 31 indoors, such as in winter. The display unit on the operation panel 44 may display the predicted travelable distance. Thereby, the user can easily know whether or not the battery 31 needs to be charged. The display unit on the operation panel 44 may display the estimated charging time. Thereby, the user can determine whether or not to charge in consideration of the necessity of charging and the time required for charging. As described above, the display unit on the operation panel 44 notifies the user of information based on the state of the battery 31, so that the user can easily know the state of the battery 31. As a result, user convenience can be improved.

  When the power-assisted bicycle 1 is powered on, the battery-assisted bicycle 1 may be running. When the user is notified of the state of the battery 31 while the battery-assisted bicycle 1 is traveling, the user may forget the state of the battery 31. For example, the user may forget the state of the battery 31 notified during the traveling of the battery-assisted bicycle 1 by performing work such as unloading the load when the traveling of the battery-assisted bicycle 1 is stopped. Alternatively, when the user is notified of the state of the battery 31 while the battery-assisted bicycle 1 is traveling, the user may not notice the notification because he / she concentrates on driving. For this reason, the state of the battery 31 can be more reliably notified by notifying the user of the state of the battery 31 when an event for turning off the power of the battery-assisted bicycle 1 occurs.

  Notification may be performed when the remaining amount of the battery 31 becomes a predetermined amount or less. For example, notification may be performed when the remaining amount of the battery 31 becomes 50% or less and when the remaining amount of the battery 31 becomes 30% or less. Notification may be performed when the temperature of the battery 31 becomes equal to or lower than a predetermined temperature. For example, notification may be performed when the temperature of the battery 31 becomes 5 ° C. or lower. Notification may be performed when the predicted travelable distance becomes equal to or less than a predetermined distance. For example, notification may be performed when the predicted travelable distance becomes 10 km or less and when the predicted travelable distance becomes 5 km or less. Notification may be performed when the predicted charging time is equal to or longer than a predetermined time. For example, notification may be performed when the estimated charging time is 1 hour or longer.

  The terminal 2 receives the battery state information transmitted by the wireless communication unit 48. The terminal 2 displays the state of the battery 31 based on the received battery state information. For example, the terminal 2 displays the remaining amount of the battery 31. The terminal 2 may display the temperature of the battery 31. Alternatively, the terminal 2 may display the predicted travelable distance. As described above, when the terminal 2 notifies the user of information based on the state of the battery 31, the convenience for the user can be improved.

  The terminal 3 receives the battery state information transmitted by the wireless communication unit 48. The terminal 3 displays the state of the battery 31 based on the received battery state information. For example, the terminal 3 displays the remaining amount of the battery 31. For example, when the remaining amount of the battery 31 is always low, the battery 31 may be deteriorated. For this reason, the store can prompt the user to visit the store for checking or replacing the battery 31. The terminal 3 may display the temperature of the battery 31. For example, when the temperature of the battery 31 is very low in winter, the battery 31 may be deteriorated by leaving the battery 31 outdoors. For this reason, the store can prompt the user to store the battery 31 indoors. The terminal 3 may display the predicted travelable distance. When the predicted travelable distance is always short, the battery 31 may be deteriorated. For this reason, the store can prompt the user to visit the store for checking or replacing the battery 31. The terminal 3 may display information indicating that the battery 31 may be deteriorated. In this case as well, the store can prompt the user to visit the store for checking or replacing the battery 31. The terminal 3 may display the predicted charging time. If the predicted charging time is always long, the battery 31 may be deteriorated. For this reason, the store can prompt the user to visit the store for checking or replacing the battery 31.

  The notification from the store to the user is performed by transmitting a mail or the like from the terminal 3 to the terminal 2. As described above, the service related to the battery 31 can be provided to the user from the dealer, thereby improving the convenience for the user.

  Notification of information based on the state of the battery 31 may be performed by a method other than the above method. For example, when the remaining amount of the battery 31 is equal to or less than a predetermined amount, the display unit on the operation panel 44 may display information indicating that the battery 31 needs to be charged. Thereby, the user can be prompted to charge the battery 31. When the temperature of the battery 31 is equal to or lower than a predetermined temperature, the display unit on the operation panel 44 may display information indicating that the battery 31 is stored indoors. This can prompt the user to keep the battery 31 in a good state.

  When the remaining amount of the battery 31 is equal to or less than the predetermined amount, the wireless communication unit 48 may transmit information indicating that the battery 31 needs to be charged to the terminal 2. The terminal 2 displays information indicating that the battery 31 needs to be charged. When the temperature of the battery 31 is equal to or lower than the predetermined temperature, the wireless communication unit 48 may transmit information indicating that the battery 31 is stored indoors to the terminal 2. The terminal 2 displays information indicating that the battery 31 is stored indoors.

  The control unit 50 may detect a key insertion state with respect to the battery-assisted bicycle 1. That is, the control unit 50 may detect whether or not the key is pulled out from the battery-assisted bicycle 1. After an event for turning off the battery of the battery-assisted bicycle 1 occurs and the key is pulled out from the battery-assisted bicycle 1, the display unit on the operation panel 44 displays the state of the battery 31 based on the battery state information. To do. In addition, after an event for turning off the power of the battery-assisted bicycle 1 occurs and the key is pulled out from the battery-assisted bicycle 1, the wireless communication unit 48 transmits the battery state information to the terminal 2 and the terminal 3. . In this case, after the key is pulled out from the battery-assisted bicycle 1, the power supply of the battery-assisted bicycle 1 is turned off.

  The control unit 50 may detect the state of a stand for parking the battery-assisted bicycle 1. That is, the control unit 50 may detect whether or not the stand is installed on the ground. When an event for turning off the power of the battery-assisted bicycle 1 occurs and the stand is installed on the ground, the display unit on the operation panel 44 displays the state of the battery 31 based on the battery state information. In addition, when an event for turning off the power-assisted bicycle 1 occurs and the stand is installed on the ground, the wireless communication unit 48 transmits battery state information to the terminal 2 and the terminal 3. In this case, after the stand is installed on the ground, the power-assisted bicycle 1 is turned off.

  The detection of the state of the battery 31 by the battery state detection unit 41, the notification by the display unit on the operation panel 44, and the notification by the wireless communication unit 48 may be performed at predetermined intervals. That is, after an event for turning off the power of the battery-assisted bicycle 1 occurs, the battery state detection unit 41 detects the state of the battery 31 at a predetermined interval. The display unit on the operation panel 44 displays the state of the battery 31 at predetermined intervals based on the battery state information. The wireless communication unit 48 transmits the battery state information to the terminal 2 and the terminal 3 at a predetermined interval. The battery-assisted bicycle 1 continues the state where the power supply is apparently off.

  The notification of information based on the state of the battery 31 may be performed to at least one of the user and the store. As notification to the user, at least one of notification by the display unit on the operation panel 44 and notification via the terminal 2 by the wireless communication unit 48 may be performed.

  After an event for turning off the power of the battery-assisted bicycle 1 occurs, the display unit on the operation panel 44 may notify information related to management of the battery 31 in addition to the state of the battery 31. For example, the display unit on the operation panel 44 may display precautions during long-term storage of the battery 31. For example, the precautions for long-term storage of the battery 31 are information indicating that the battery 31 is stored indoors. The precautions during long-term storage of the battery 31 may be information indicating that the temperature of the battery 31 is kept within a predetermined range. The precautions during long-term storage of the battery 31 may be information indicating that the remaining amount of the battery 31 is kept within a predetermined range. Thereby, it is possible to prompt the user to store the battery 31 well.

  As described above, the display unit of the operation panel 44 notifies the user of information related to the management of the battery 31, so that the convenience of the user related to the management of the battery 31 can be improved. After an event for turning off the power of the battery-assisted bicycle 1 occurs, the wireless communication unit 48 may transmit information related to management of the battery 31 to the terminal 2 and the terminal 3 in addition to the state of the battery 31. .

  The notification of the information regarding the management of the battery 31 may be performed to at least one of the user and the store. As notification to the user, at least one of notification by the display unit on the operation panel 44 and notification via the terminal 2 by the wireless communication unit 48 may be performed.

(First modification of the first embodiment)
FIG. 5 shows an electrical configuration of the battery-assisted bicycle 1a according to the first modification of the first embodiment. The configuration shown in FIG. 5 will be described while referring to differences from the configuration shown in FIG.

  As shown in FIG. 5, the battery 31 shown in FIG. 3 is changed to a battery 31a. The battery 31 a includes a battery state detection unit 41, a wireless communication unit 48, and a control unit 49. That is, the battery state detection unit 41, the wireless communication unit 48, and the control unit 49 are mounted on the battery 31a. The battery state detection unit 41 detects the connection state of the battery 31a to the battery-assisted bicycle 1a, and outputs a battery connection state signal indicating the connection state of the battery 31a to the control unit 49. When the battery 31a is detached from the battery-assisted bicycle 1a, the control unit 49 generates battery state information indicating the state of the battery 31a based on the battery state signal output from the battery state detection unit 41. The control unit 49 outputs battery state information to the wireless communication unit 48. The wireless communication unit 48 transmits battery state information to the terminal 2 and the terminal 3. The control unit 50 shown in FIG. 3 is changed to a control unit 50a.

  In the first modification of the first embodiment, when the power of the battery-assisted bicycle 1a is off, the supply of drive power from the battery 31a to the components other than the battery 31a is stopped. For this reason, the supply of drive power from the battery 31a to the electric motor 30 is stopped. When the power supply of the battery-assisted bicycle 1a is off, power can be supplied to the components mounted on the battery 31a. For example, even if the power of the battery-assisted bicycle 1a is off, the battery state detection unit 41, the operation panel 44, the wireless communication unit 48, and the control unit 49 can operate.

  Regarding the points other than the above, the configuration shown in FIG. 5 is the same as the configuration shown in FIG.

  FIG. 6 shows a procedure for monitoring the state of the battery 31a. The process shown in FIG. 6 will be described while referring to differences from the process shown in FIG.

  If an instruction to turn off the power is given in step S105, the process in step S120 is performed. After step S120, the control unit 49 determines whether or not the battery 31a has been removed from the battery-assisted bicycle 1a based on the battery connection state signal output from the battery state detection unit 41 (step S200). If the battery 31a is not removed from the battery-assisted bicycle 1a in step S200, the determination in step S200 is performed again.

  In step S200, when the battery 31a is removed from the battery-assisted bicycle 1a, the control unit 49 determines whether or not the power-off time is equal to or longer than a predetermined time (step S205). When the power of the battery-assisted bicycle 1a is turned off in step S120, the control unit 49 starts measuring time. In step S205, the control unit 49 determines whether the measured time is equal to or longer than a predetermined time. In step S205, when the power-off time is less than the predetermined time, the determination in step S205 is performed again.

  In step S205, when the power-off time is equal to or longer than the predetermined time, the control unit 49 instructs the battery state detection unit 41 to detect the state of the battery 31a. The battery state detection unit 41 detects the state of the battery 31a and outputs a battery state signal indicating the detected state of the battery 31a to the control unit 49. The control unit 49 generates battery state information indicating the state of the battery 31a based on the battery state signal output from the battery state detection unit 41 (step S210).

  After step S <b> 210, the control unit 49 outputs battery state information to the wireless communication unit 48. The wireless communication unit 48 notifies the user of the battery-assisted bicycle 1a and the store of the battery-assisted bicycle 1a by transmitting the battery state information to the terminal 2 and the terminal 3 (step S215). .

  Regarding the points other than the above, the process shown in FIG. 6 is the same as the process shown in FIG.

  The process in step S205 may be omitted. That is, when the battery 31a is removed from the battery-assisted bicycle 1a in step S200, the processing in step S210 and step S215 may be performed. When the state where the battery 31a is removed from the battery-assisted bicycle 1a continues, the processes in step S210 and step S215 may be repeated periodically.

  In the process shown in FIG. 6, when the power of the battery-assisted bicycle 1a is off and the battery 31a is removed from the battery-assisted bicycle 1a, the wireless communication unit 48 detects the battery 31a detected by the battery state detection unit 41. Information based on the status of the user is notified to the user and the store. Accordingly, it is possible to improve the convenience of the user when it is assumed that the user uses the battery-assisted bicycle 1a again after the state where the battery-assisted bicycle 1a is not used continues for a long time.

  In the process shown in FIG. 6, when the state where the power of the battery-assisted bicycle 1 a is turned off continues for a predetermined time or longer, the wireless communication unit 48 provides information based on the state of the battery 31 a detected by the battery state detection unit 41 to the user. And notify the dealer. For example, the predetermined time is 30 days. Accordingly, it is possible to improve the convenience of the user when it is assumed that the user uses the battery-assisted bicycle 1a again after the state where the battery-assisted bicycle 1a is not used continues for a long time. The user may be able to set a predetermined time.

  The notification may be performed when the battery 31a is removed from the battery-assisted bicycle 1a and the remaining amount of the battery 31a becomes equal to or less than a predetermined amount. When the battery 31a is not used for a long time, the remaining amount of the battery 31a is desirably equal to or greater than a predetermined amount in order to suppress the deterioration of the battery 31a. Therefore, the user can be prompted to charge the battery 31a by notifying the information regarding the remaining amount of the battery 31a when the remaining amount of the battery 31a becomes equal to or less than a predetermined amount.

  The notification may be performed when the battery 31a is removed from the battery-assisted bicycle 1a and the temperature of the battery 31a becomes equal to or lower than a predetermined temperature. When the battery 31a is not used for a long period of time, it is desirable that the temperature of the battery 31a is equal to or higher than a predetermined temperature in order to suppress deterioration of the battery 31a. Therefore, by notifying the information regarding the temperature of the battery 31a when the temperature of the battery 31a becomes a predetermined temperature or less, the user can be urged to store the battery 31a indoors.

  Similarly, notification may be performed when the battery 31a is removed from the battery-assisted bicycle 1a and the predicted travelable distance becomes equal to or less than a predetermined distance. Alternatively, notification may be made when the battery 31a is removed from the battery-assisted bicycle 1a and the estimated charging time is equal to or longer than a predetermined time.

  The battery state detection unit 41 may detect a deterioration state based on the aging of the battery 31a as the state of the battery 31a. For example, the battery state detection unit 41 detects the number of times the battery 31a is charged. For example, when the state of charging the battery 31a continues for a predetermined time or longer after the charging of the battery 31a is started, the battery state detection unit 41 increases the number of times of charging the battery 31a by one. The battery state detection part 41 memorize | stores the information which shows the frequency | count of charge of the battery 31a. When the number of times the battery 31a is charged is equal to or greater than the predetermined number, the wireless communication unit 48 transmits information indicating the possibility that the battery 31a has deteriorated to the terminal 2 and the terminal 3. The terminal 2 displays information indicating the possibility that the battery 31a has deteriorated. Thereby, the user can easily know that the inspection or replacement of the battery 31a is necessary. The terminal 3 displays information indicating the possibility that the battery 31a has deteriorated. Thereby, the store can prompt the user to visit the store for checking or replacing the battery 31a. Information indicating the possibility that the battery 31a has deteriorated may be information that prompts inspection or replacement of the battery 31a.

  The battery state detection unit 41 may detect the remaining amount of the battery 31a after charging as the deterioration state of the battery 31a. When the battery 31a is deteriorated due to the aging of the battery 31a, the remaining amount of the battery 31a after charging the battery 31a for a sufficient time becomes smaller than the maximum capacity of the battery 31a. When the remaining amount of the battery 31a after the battery 31a is charged for a predetermined time or more is equal to or less than the predetermined amount, the wireless communication unit 48 displays information indicating the possibility that the battery 31a is deteriorated in the terminal 2 and the terminal 3 Send to. For example, the predetermined time is 5 hours.

  The battery state detection unit 41 may detect the usage time of the battery 31a as the deterioration state of the battery 31a. For example, the battery state detection unit 41 measures the time elapsed since the battery 31a was first charged as the usage time. The usage time of the battery 31a is an indicator of the deterioration state of the battery 31a. When the usage time of the battery 31a is equal to or longer than the predetermined time, the wireless communication unit 48 transmits information indicating the possibility that the battery 31a has deteriorated to the terminal 2 and the terminal 3. For example, the predetermined time is two years.

  The battery 31a may have a display unit. For example, after an event of turning off the power of the battery-assisted bicycle 1a occurs, the display unit in the battery 31a is based on the battery state information indicating the state of the battery 31a detected by the battery state detection unit 41. Is displayed. Thereby, the display part in the battery 31a notifies the user of the battery-assisted bicycle 1a of information based on the state of the battery 31a.

(Second modification of the first embodiment)
FIG. 7 shows an electrical configuration of the battery-assisted bicycle 1b according to the second modification of the first embodiment. The difference between the configuration shown in FIG. 7 and the configuration shown in FIG. 3 will be described. In the battery-assisted bicycle 1b, GPS (Global Positioning System) is used.

  As shown in FIG. 7, the battery-assisted bicycle 1 b includes a GPS receiver 51 in addition to the configuration shown in FIG. 3. The GPS receiver 51 receives position information of the battery-assisted bicycle 1b from a GPS satellite. The GPS receiver 51 outputs the position information of the battery-assisted bicycle 1b to the control unit 50b. The GPS receiver 51 functions as a position detection unit that detects the position of the battery-assisted bicycle 1b.

  The control unit 50 shown in FIG. 3 is changed to a control unit 50b. The control unit 50b calculates the travel distance of the battery-assisted bicycle 1b based on the position information output from the GPS receiver 51. For example, the home position of the user of the battery-assisted bicycle 1b is registered in advance. That is, information indicating the position of the user's home is stored in advance in the memory. After the event for turning off the power of the battery-assisted bicycle 1b occurs, the control unit 50b acquires the current position information of the battery-assisted bicycle 1b from the GPS receiver 51. The controller 50b calculates the distance between the home position and the current position of the battery-assisted bicycle 1b. The control unit 50b determines whether or not the remaining amount of the battery 31 detected by the battery state detection unit 41 is sufficient for traveling the distance between the home position and the current position of the battery-assisted bicycle 1b. For example, the control unit 50b calculates a predicted travelable distance corresponding to the remaining amount of the battery 31 by the method described above. The controller 50b determines whether or not the predicted travelable distance is equal to or greater than the distance between the home position and the current position of the battery-assisted bicycle 1b.

  The control unit 50 b outputs determination result information indicating the determination result to the display unit on the operation panel 44 and the wireless communication unit 48. Based on the determination result information, the display unit on the operation panel 44 displays whether or not the remaining amount of the battery 31 is sufficient for traveling to the home, so that the travelable distance based on the state of the battery 31 is electrically assisted. The user of the bicycle 1 is notified. The wireless communication unit 48 notifies the user of the battery-assisted bicycle 1 and the store of the battery-assisted bicycle 1 of the travelable distance based on the state of the battery 31 by transmitting the determination result information to the terminal 2 and the terminal 3.

  Except for the above, the configuration shown in FIG. 7 is the same as the configuration shown in FIG.

  The detection of the position of the battery-assisted bicycle 1b may be performed by a method other than the method using GPS. The predicted travelable distance may be calculated in consideration of a travel pattern.

  By using the GPS, the position of the battery-assisted bicycle 1 can be detected. For this reason, notification according to the position of the battery-assisted bicycle 1 and the remaining amount of the battery 31 can be performed.

  The wireless communication unit 48 may transmit the determination result information to the terminal 3 of the store closest to the current position of the battery-assisted bicycle 1b. For example, position information of a plurality of stores is stored in advance in the memory. The control unit 50b selects a store closest to the current position of the battery-assisted bicycle 1b based on the position information output from the GPS receiver 51 and the position information of a plurality of stores stored in the memory. The control unit 50b controls the wireless communication unit 48 so that the determination result information is transmitted to the terminal 3 of the selected store. The wireless communication unit 48 may transmit the battery state information in the first embodiment to the terminal 3 of the store closest to the current position of the battery-assisted bicycle 1b. The display unit on the operation panel 44 may notify the user of the location of the store by displaying the location of the nearest store.

(Second Embodiment)
FIG. 8 shows an electrical configuration of the battery-assisted bicycle 1c according to the second embodiment. The difference between the configuration shown in FIG. 8 and the configuration shown in FIG. 3 will be described.

  The control unit 50 shown in FIG. 3 is changed to a control unit 50c. The control unit 50 c includes a component state detection unit 500 that detects the state of the components of the battery-assisted bicycle 1 c excluding the battery 31. After an event for turning off the power of the battery-assisted bicycle 1c occurs, the display unit on the operation panel 44 notifies the user of the battery-assisted bicycle 1c of information based on the state of the component detected by the component state detection unit 500. To do. After an event for turning off the power of the battery-assisted bicycle 1c occurs, the wireless communication unit 48 transmits information based on the component state detected by the component state detection unit 500 to the user of the battery-assisted bicycle 1c and the battery-assisted bicycle. Notify the store of 1c.

  Regarding the other points, the configuration shown in FIG. 8 is the same as the configuration shown in FIG.

  FIG. 9 shows a procedure for monitoring the state of the battery 31. The process shown in FIG. 9 will be described while referring to differences from the process shown in FIG.

  After step S100, the component state detection unit 500 detects the component state of the battery-assisted bicycle 1c, and generates component state information indicating the detected component state (step S300). After step S300, the process in step S105 is performed.

  After step S115, the control unit 50 outputs the component state information to the display unit on the operation panel 44 and the wireless communication unit 48. The display unit on the operation panel 44 displays the state of the part based on the part state information, thereby notifying the user of the battery-assisted bicycle 1c of the information based on the part state. The wireless communication unit 48 notifies the user of the battery-assisted bicycle 1c and the store of the battery-assisted bicycle 1c by transmitting the component state information to the terminal 2 and the terminal 3 (step S305). In this example, when an operation to turn off the power of the battery-assisted bicycle 1c is performed, the display unit on the operation panel 44 and the wireless communication unit 48 are based on the state of the component detected by the component state detection unit 500. Notify information. After step S305, the process in step S120 is performed.

  In the procedure shown in FIG. 9, the process in step S305 is performed after the process in step S115 is performed. However, the process in step S115 may be performed after the process in step S305 is performed. The process in step S115 and the process in step S305 may be performed simultaneously. After an event for turning off the power-assisted bicycle 1c occurs, the process in step S305 may be performed before the process in step S110 is performed. When the state where the driving of the battery-assisted bicycle 1c is stopped continues for a predetermined time or longer, the processing from step S110 to step S120 and step S305 may be performed.

  An example of component state detection will be described. For example, the component state detection unit 500 includes an input torque detection unit 42, a crank rotation number detection unit 43, an operation panel 44, a motor drive circuit 45, a motor torque detection unit 46, a motor rotation number detection unit 47, and a wireless communication unit 48. Detect state. When there is an abnormality in these parts, the part state detection unit 500 generates part state information indicating the abnormality of the part. The display unit on the operation panel 44 displays information indicating a component abnormality. Thereby, the user can easily know the necessity of replacement of parts.

  For example, the battery-assisted bicycle 1c is designed so that the assist function stops when the temperature of the electric motor 30 rises abnormally. When the assist function is stopped by the protection function of the battery-assisted bicycle 1c, the component state detection unit 500 generates component state information indicating that the assist function is stopped. The display unit on the operation panel 44 displays information indicating that the assist function has been stopped. As a result, the user can easily know that the assist function has stopped due to a temperature rise rather than a component abnormality. As described above, the display unit in the operation panel 44 notifies the user of information based on the state of the component, so that the user can easily know the state of the component. As a result, user convenience can be improved.

  When the power-assisted bicycle 1c is powered on, the battery-assisted bicycle 1c may be traveling. When the user is notified of the state of the part while the battery-assisted bicycle 1c is traveling, the user may forget the state of the part. For example, the user may forget the state of the parts notified during the traveling of the battery-assisted bicycle 1c by performing an operation such as unloading a load when the traveling of the battery-assisted bicycle 1c is stopped. Alternatively, when the user is notified of the state of the parts while the battery-assisted bicycle 1c is traveling, the user may not notice the notification because he / she concentrates on driving. For this reason, by notifying the user of the state of the part after an event for turning off the power of the battery-assisted bicycle 1c occurs, the state of the part can be more reliably notified.

  The terminal 2 receives the component state information transmitted by the wireless communication unit 48. The terminal 2 displays the component status based on the received component status information. For example, the terminal 2 displays information indicating a component abnormality. The terminal 2 may display information indicating that the assist function has been stopped. As described above, the terminal 2 notifies the user of information based on the state of the component, so that convenience for the user can be improved.

  The terminal 3 receives the component state information transmitted by the wireless communication unit 48. The terminal 3 displays the component state based on the received component state information. For example, the terminal 3 displays information indicating a component abnormality. For this reason, the store of the battery-assisted bicycle 1c can urge the user to visit the store for checking or repairing the battery-assisted bicycle 1c. In addition, the store can perform processing such as a substitute vehicle, store reservation, and estimation. The notification from the store to the user is performed by transmitting a mail or the like from the terminal 3 to the terminal 2. As described above, it becomes possible to provide services related to parts from the dealer to the user, so that convenience for the user can be improved.

  The component status information transmitted to the terminal 3 by the wireless communication unit 48 may include information indicating the type of component that is abnormal. As a result, the store can identify an abnormal part. As a result, the dealer can immediately order a part that needs to be replaced, and reduce the waiting time of the user until the part arrives. By specifying an abnormal part, it is possible to specify the failure location of the battery-assisted bicycle 1c without depending on the ability of the store staff to diagnose the failure.

  The notification by the display unit and the notification by the wireless communication unit 48 on the operation panel 44 may be performed at predetermined intervals. That is, after an event for turning off the power of the battery-assisted bicycle 1c occurs, the component state detection unit 500 detects the state of the components of the battery-assisted bicycle 1c at predetermined intervals. The display unit on the operation panel 44 displays the state of the component at predetermined intervals based on the component state information. The wireless communication unit 48 transmits the component state information to the terminal 2 and the terminal 3 at a predetermined interval. The battery-assisted bicycle 1c continues to be in a state where the power supply is apparently off.

  The battery 31 shown in FIG. 7 may be changed to the battery 31a shown in FIG. In this case, after the battery 31a is removed from the battery-assisted bicycle 1c, notification of information based on the state of the parts may be performed. The notification of information based on the state of the component may be performed to at least one of the user and the store. As notification to the user, at least one of notification by the display unit on the operation panel 44 and notification via the terminal 2 by the wireless communication unit 48 may be performed.

  The component state detection unit 500 may detect a deterioration state based on the aging of the component as the component state. For example, the component state detection unit 500 calculates the rotation number of the electric motor 30 based on the rotation number detection signal output from the motor rotation number detection unit 47. The component state detection unit 500 calculates the total number of rotations of the electric motor 30 from when the battery 31 is first charged, and stores the calculated number of rotations. When the total number of rotations of the electric motor 30 is equal to or greater than a predetermined value, the display unit on the operation panel 44 displays information indicating that the electric motor 30 may be deteriorated. Thereby, the user can easily know that the electric motor 30 needs to be checked or replaced. Information indicating the possibility that the electric motor 30 has deteriorated may be information that prompts inspection or replacement of the electric motor 30.

  The wireless communication unit 48 transmits information indicating the possibility that the electric motor 30 is deteriorated to the terminal 2 and the terminal 3. The terminal 2 displays information indicating the possibility that the electric motor 30 has deteriorated. Thereby, the user can easily know that the electric motor 30 needs to be checked or replaced. The terminal 3 displays information indicating the possibility that the electric motor 30 has deteriorated. Thereby, the store of the battery-assisted bicycle 1c can prompt the user to visit the store for checking or replacing the electric motor 30.

  The component state detection unit 500 may detect the rotation number of the crank 27 based on the crank rotation number signal output from the crank rotation number detection unit 43. The rotation speed of the crank 27 is related to the travel distance of the battery-assisted bicycle 1c. Therefore, the rotation speed of the crank 27 serves as an indicator of the deterioration state of the parts according to the travel distance of the battery-assisted bicycle 1c. The component state detection unit 500 calculates the total number of rotations of the crank 27 from when the battery 31 is first charged, and stores the calculated number of rotations. When the total number of rotations of the crank 27 is equal to or greater than a predetermined value, the display unit on the operation panel 44 displays information that prompts inspection of the battery-assisted bicycle 1c. Thereby, the user can easily know that the battery-assisted bicycle 1c needs to be checked.

  The wireless communication unit 48 transmits information urging inspection of the battery-assisted bicycle 1c to the terminal 2 and the terminal 3. The terminal 2 displays information that prompts inspection of the battery-assisted bicycle 1c. Thereby, the user can easily know that the battery-assisted bicycle 1c needs to be checked. The terminal 3 displays information that prompts inspection of the battery-assisted bicycle 1c. Thereby, the store can prompt the user to visit the store for checking the battery-assisted bicycle 1c.

(Modification of the second embodiment)
FIG. 10 shows an electrical configuration of a battery-assisted bicycle 1d according to a modification of the second embodiment. The configuration shown in FIG. 10 will be described while referring to differences from the configuration shown in FIG.

  As shown in FIG. 10, the battery-assisted bicycle 1 d includes a front wheel air pressure sensor 52 and a rear wheel air pressure sensor 53 in addition to the configuration shown in FIG. 3. The front wheel air pressure sensor 52 detects the air pressure of the front wheel 21 and outputs an air pressure signal indicating the detected air pressure to the control unit 50d. The rear wheel air pressure sensor 53 detects the air pressure of the rear wheel 22 and outputs an air pressure signal indicating the detected air pressure to the control unit 50d. The front wheel air pressure sensor 52 and the rear wheel air pressure sensor 53 function as a component state detection unit that detects the state of the front wheel 21 and the rear wheel 22.

  The control unit 50 shown in FIG. 3 is changed to a control unit 50d. The control unit 50d generates tire state information indicating the states of the front wheels 21 and the rear wheels 22 based on the air pressure signals output from the front wheel air pressure sensor 52 and the rear wheel air pressure sensor 53.

  The control unit 50d outputs the tire condition information to the display unit on the operation panel 44 and the wireless communication unit 48. The display unit on the operation panel 44 notifies the user of information based on the state of the front wheels 21 and the rear wheels 22 based on the tire state information. The wireless communication unit 48 transmits tire state information to the terminal 2 and the terminal 3, thereby notifying the user of the battery-assisted bicycle 1d and the store of the battery-assisted bicycle 1d of information based on the state of the front wheels 21 and the rear wheels 22. .

  Regarding the points other than the above, the configuration shown in FIG. 10 is the same as the configuration shown in FIG.

  For example, the display unit on the operation panel 44 displays the air pressure of the front wheels 21 based on the tire condition information. Thereby, the user can easily know whether or not it is necessary to put air into the front wheel 21. When the air pressure of the front wheel 21 is less than or equal to a predetermined value, the display unit on the operation panel 44 may display information that prompts the air to enter the front wheel 21. Alternatively, when the air pressure of the front wheel 21 is an extremely low value, the display unit on the operation panel 44 may display information indicating that the front wheel 21 is punctured. Thus, the user can easily know whether or not the front wheel 21 needs to be repaired. The front wheel 21 in the above description may be replaced with the rear wheel 22.

  The terminal 2 receives the tire condition information transmitted by the wireless communication unit 48. The terminal 2 displays the state of the front wheel 21 based on the received tire state information. For example, the terminal 2 displays the air pressure of the front wheel 21. When the air pressure of the front wheel 21 is equal to or less than a predetermined value, the terminal 2 may display information that prompts the air to enter the front wheel 21. Alternatively, when the air pressure of the front wheel 21 is an extremely low value, the terminal 2 may display information indicating that the front wheel 21 is punctured. The front wheel 21 in the above description may be replaced with the rear wheel 22.

  The terminal 3 receives the tire condition information transmitted by the wireless communication unit 48. The terminal 3 displays the state of the front wheels 21 based on the received tire state information. For example, the terminal 3 displays the air pressure of the front wheel 21. When the air pressure of the front wheel 21 is low, the store of the battery-assisted bicycle 1d can urge the user to visit the store to put air into the front wheel 21. When the air pressure of the front wheel 21 is equal to or less than a predetermined value, the terminal 3 may display information that prompts the air to enter the front wheel 21. Alternatively, when the air pressure of the front wheel 21 is an extremely low value, the terminal 3 may display information indicating that the front wheel 21 is punctured. For this reason, the store of the battery-assisted bicycle 1d can prompt the user to visit the store for repairing the front wheels 21. The front wheel 21 in the above description may be replaced with the rear wheel 22.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to the above-described embodiments, and includes design changes and the like within a scope not departing from the gist of the present invention. .

1, 1a, 1b, 1c, 1d Battery-assisted bicycle 2, 3 Terminal 10 Frame 11 Front fork 12 Head pipe 13 Down tube 14A Front / rear direction member 14B Vertical direction member 15 Seat stay 16 Chain stay 21 Front wheel 22 Rear wheel 23 Handle stem 24 Handle 25 Seatpost 26 Saddle 27 Crank 28 Pedal 29 Chain 30 Electric motor 31, 31a Battery 41 Battery state detection unit 42 Input torque detection unit 43 Crank rotation number detection unit 44 Operation panel 45 Motor drive circuit 46 Motor torque detection unit 47 Motor rotation Number detection unit 48 Wireless communication unit 49, 50, 50a, 50b, 50c, 50d Control unit 51 GPS receiver 52 Front wheel air pressure sensor 53 Rear wheel air pressure sensor 100 Battery state monitoring system 50 Parts state detection unit

Claims (6)

A battery for supplying driving power to the motor of the battery-assisted bicycle;
A battery state detector for detecting the state of the battery;
A notification unit for notifying information based on a state of the battery detected by the battery state detection unit after an event for turning off the power of the battery-assisted bicycle occurs;
A control unit for detecting whether a key is pulled out from the battery-assisted bicycle;
Equipped with a,
The notification unit notifies the information based on the state of the battery after the key is pulled out from the battery-assisted bicycle.
After the information based on the state of the battery is notified by the notification unit, when the notification unit is operated by a user, the power-assisted bicycle is turned off .   The battery-assisted bicycle according to claim 1, wherein after the event for turning off the power of the battery-assisted bicycle occurs, the notification unit further notifies information related to management of the battery. A component state detection unit for detecting the state of the parts of the battery-assisted bicycle excluding the battery;
The information unit may further notify information based on the state of the component detected by the component state detection unit after an event for turning off the power of the battery-assisted bicycle occurs. The battery-assisted bicycle according to claim 1 or claim 2.   When the power of the battery-assisted bicycle is off and the battery is removed from the battery-assisted bicycle, the notification unit notifies information based on the state of the battery detected by the battery state detection unit. The battery-assisted bicycle according to any one of claims 1 to 3, wherein the bicycle is a bicycle.   The said notification part notifies the information based on the state of the said battery detected by the said battery state detection part when the state in which the power supply of the said battery-assisted bicycle continues for more than predetermined time is characterized by the above-mentioned. The battery-assisted bicycle according to any one of claims 1 to 3. A battery state detecting step for detecting a state of a battery for supplying driving power to the motor of the battery-assisted bicycle;
A notification step of notifying information based on the state of the battery detected by the battery state detection step after an event for turning off the power of the battery-assisted bicycle occurs;
Detecting whether a key has been withdrawn from the battery-assisted bicycle;
Equipped with a,
After the key is pulled out from the battery-assisted bicycle, information based on the state of the battery is notified,
A battery state monitoring method for a battery-assisted bicycle , wherein the power-assisted bicycle is turned off when an input from a user is received after the information based on the battery state is notified .

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