JP4229545B2 - Electric vehicle and comprehensive diagnosis apparatus for the electric vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an electric vehicle and a comprehensive diagnosis device that performs abnormality diagnosis of the electric vehicle, and more particularly to an integrated diagnosis technique that can cope with a problem that occurs due to a use situation of an electric vehicle by a user.
[0002]
[Prior art]
  Conventionally, service tools for diagnosing abnormalities and failures of individual parts of an electric bicycle have been proposed. In particular, there is a vehicle control device that can display a diagnosis unique to the vehicle. On the other hand, regarding the diagnosis of abnormality of a battery mounted on an electric vehicle, there is one that can display the discharge time of the battery by flowing a constant discharge current through the discharger. Most of these parts can be diagnosed with these service tools.
[0003]
[Problems to be solved by the invention]
  In the case of the above-described conventional service tool, when phenomena that can be said to be abnormal or failure have occurred, these phenomena can be diagnosed. However, the user's usage environment, that is, the problem that the user feels dissatisfied due to usage, for example, the problem that “the cruising distance is short”, is the battery memory effect, the frequency of refresh discharge, how to run, or the charging caused by the charging environment It is caused by many points such as lack, and simple diagnosis of abnormality and failure cannot analyze the cause and give advice to the user.
[0004]
  The present invention has been made in view of the above-described conventional problems. By displaying a simple diagnosis result on a display unit of, for example, a battery case on the vehicle side, a user or a dealer can easily grasp an abnormal part, and the user can By storing and accumulating usage environment data indicating the usage status of the vehicle, it is possible to deal with problems based on the user's usage environment, for example, problems that cannot be solved by simple failure diagnosis such as “short cruising distance”, and the electric vehicle It is an object to provide a comprehensive diagnosis device for an electric vehicle.
[0005]
[Means for Solving the Problems]
  The invention of claim 1 is a rechargeable battery and a battery management device for managing the battery state of the battery.includingA battery case in which a battery case incorporating a battery device is mounted on a vehicle body and a vehicle control device for controlling a running state of the vehicle is provided on the vehicle body side. The battery management device is a battery for diagnosing abnormality of the battery device. It has a side abnormality diagnosis mode, displays the diagnosis result on the battery side display section provided in the battery case, and also stores and stores usage environment data to indicate the user's usage statusThe vehicle control device has a vehicle-side abnormality diagnosis mode for diagnosing abnormality of the vehicle traveling device, and when the diagnosis of the battery state in the battery-side abnormality diagnosis mode is started, that fact is indicated to the vehicle control device. The vehicle control apparatus automatically executes a vehicle-side abnormality diagnosis mode and displays the diagnosis result on the vehicle-side display unit.is doing.
[0006]
  The invention according to claim 2 is the invention according to claim 1.The electric vehicle described inIn the battery-side display unit, the battery state such as the remaining capacity (relative capacity and absolute capacity) of the battery and the number of times of charging can be displayed.
[0007]
  The invention of claim 3The electric vehicle according to claim 1, wherein the battery case includes a display switch that causes the battery-side display unit to perform display.is doing.
[0008]
  The invention according to claim 4 is a rechargeable battery and a battery management device for managing the battery state of the battery.includingA battery case including a battery device is mounted on a vehicle body and a vehicle control device for controlling a running state of the vehicle on the vehicle body side. The battery management device includes: It has a battery-side abnormality diagnosis mode for diagnosing abnormalities, displays the diagnosis result on the battery-side display unit provided in the battery case, and also uses the usage environment data to indicate the usage status of the user in the battery management device The external service unit is detachably attached to the battery management device, and the usage environment data stored in the battery management device is stored on the external service unit by operating the external service unit. Display on the external displayWhen the external service unit is connected, the vehicle control device is notified to that effect, and the vehicle control device outputs an assist prohibit command.is doing.
[0009]
  The invention of claim 55. The comprehensive diagnosis apparatus for an electric vehicle according to claim 4, wherein the vehicle control is performed. The device has a vehicle-side abnormality diagnosis mode for diagnosing an abnormality in the vehicle travel device,By operating the external service unit, the external display unit can display the battery diagnosis result, the vehicle-side diagnosis result, the battery remaining capacity (relative capacity, absolute capacity), the number of times of charging, and the like. It is characterized by.
[0010]
  The invention of claim 6In the comprehensive diagnosis apparatus of the electric vehicle according to claim 4 or 5The battery case is provided with a display switch for executing display by the battery side display unit, and the use environment data stored in the battery management device can be displayed on the external display unit by operating the display switch. It is characterized by.
[0011]
  The invention of claim 7 is claimed in claimThe comprehensive diagnosis device for an electric vehicle according to claim 6LeaveThe vehicle control device has a vehicle-side abnormality diagnosis mode for diagnosing abnormality of the vehicle traveling device,By operating the display switch, it is possible to display the battery diagnosis result, the battery diagnosis result, the battery remaining capacity (relative capacity, absolute capacity), the number of times of charging, etc. on the external display unit. It is a feature.
[0012]
  Here, in the present invention, the occurrence of a problem is estimated based on the usage environment data indicating the user usage status. Specific examples thereof are as follows, for example.
(1) Estimate and display the charging environment based on the charging termination condition.
(2) Estimate and display the used discharge depth and number of times from the number of times of charge and the charge start capacity.
(3) Estimate and display the usage time based on the total charging time.
(4) Estimate and display the frequency of memory effects from the number of refresh notifications.
(5) Estimate and display the driving environment from the number of times of running out.
(6) Estimate and display the current remaining capacity from the battery learning capacity.
(7) Estimate and display the total number of running and refresh cancellations based on the number of learnings.
(8) The learning interval is estimated and displayed by the number of times of charging from the learning capacity.
(9) Estimate and display the battery low temperature usage environment from the battery ambient temperature.
(10) Estimate the occurrence of the memory effect from the number of capacity jumps and reset the optimum number of refresh discharges.
[0013]
  Claims3Regarding the operation of the display switch in the invention, a plurality of operation patterns are set, and the battery side display unit displays relative capacity display, absolute capacity display, charge count display, abnormal (or normal) according to the operation pattern of the display switch. Display or the like may be performed. In addition, when the battery is being charged or refrigerated, the battery capacity may be displayed constantly.
[0014]
[Effects of the invention]
  According to the first aspect of the present invention, the battery management device diagnoses an abnormality and displays the diagnosis result on the battery side display unit provided in the battery case. The battery status can be confirmed, abnormality can be confirmed, and serviceability can be improved.
[0015]
  In addition, the usage environment data for indicating the usage status of the user is stored and stored in the battery management device.4As described above, the external service unit (computer) can be freely attached to and detached from the battery management device, and the usage environment data stored in the battery management device is stored on the external service unit by operating the external service unit. It can be displayed on the display unit, so that a service person such as a store can analyze the cause and give advice to the user for a problem caused by the user use environment although it is not abnormal. .
[0016]
  Further, when the diagnosis of the battery state is started, the vehicle control device is notified to that effect, the vehicle control device automatically executes the vehicle-side abnormality diagnosis mode, and the diagnosis result is displayed on the vehicle-side display unit. Since it is displayed, it is possible to check the battery and vehicle status with a simple operation and to make a diagnosis. Consistency and accuracy can be improved, and serviceability can be further improved.
[0017]
  According to the invention of claim 2, since the battery state such as the remaining capacity (relative capacity, absolute capacity) and the number of times of charging can be displayed on the battery side display unit, not only battery abnormality but also battery state Can be easily confirmed and serviceability can be improved.
[0018]
  Claim3According to the invention, since the display switch for executing the display by the battery side display unit is provided in the battery case, the display operation of the diagnosis result is easy, and the serviceability can be improved also in this respect.
[0019]
  According to the invention of claim 4, since the assist prohibition command is outputted when the external service unit is connected, it is possible to prevent the diagnosis accuracy from being adversely affected by the assist current.
[0020]
  According to the invention of claim 5, by the operation of the external service unit, the battery diagnosis result, the vehicle side diagnosis result, the remaining battery capacity (relative capacity, absolute capacity), the number of times of charging are displayed on the external display unit. The battery status such as can be displayed, and the serviceability can be further improved.
[0021]
  According to the invention of claim 6, the operating environment data can be displayed on the external display part of the external service unit by operating the display switch of the battery case. Further, according to the invention of claim 7, the battery diagnosis result, It is possible to display the diagnosis results on the vehicle side and the battery status such as the remaining battery capacity (relative capacity and absolute capacity) and the number of times of charging. Can be improved.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 7 are diagrams for explaining a comprehensive diagnosis apparatus for a battery-assisted bicycle according to an embodiment of the present invention. FIG. 1 is a block diagram showing the overall configuration of the comprehensive diagnosis apparatus. FIG. FIG. 3 to FIG. 6 are diagrams for explaining the functions of the comprehensive diagnostic apparatus, and FIG. 7 is a schematic diagram showing a battery-side display device.
[0023]
  In FIG. 2, reference numeral 1 denotes a battery-assisted bicycle as an electric vehicle in which the charger 112 is not mounted on the vehicle and the detachable battery box (battery case) 100 is mounted on the vehicle. The body frame 2 of the battery-assisted bicycle 1 includes a head pipe 3, a down tube 4 that extends obliquely rearward and downward from the head pipe 3, and a seat tube 5 that extends substantially upward from the rear end of the down tube 4. , A pair of left and right chain stays 6 extending substantially horizontally rearward from the rear end of the down tube 4, and a pair of left and right connecting the rear end portions of the chain stays 6 and the upper end portion of the seat tube 5. The seat stay 7 and a top tube 11 for connecting the head pipe 3 and the seat tube 5 are provided.
[0024]
  A front fork 8 is pivotally supported on the head pipe 3 so as to be rotatable left and right. A front wheel 9 is pivotally supported at the lower end of the front fork 8, and a steering handle 10 is fixed to the upper end. A saddle 12 is mounted on the upper end of the seat tube 5. Further, a rear wheel 13 is pivotally supported at the rear end of the chain stay 6.
[0025]
  Here, an instrument panel (not shown) provided with a speed meter or the like is provided at the center of the steering handle 10, and a vehicle-side display unit 101a (displaying a vehicle-side diagnosis result described later) is provided on this panel portion. 1) is provided.
[0026]
  At the lower end of the vehicle body frame, the pedal depression force (human power) input to the pedal 16b via the crank arm 16a attached to the both end protrusions of the crankshaft 16 and the magnitude of human power from the built-in electric motor are shown. A power unit 15 that outputs a resultant force with proportional auxiliary power is mounted. The output from the power unit 15 is transmitted to the rear wheel 13 through the chain 30.
[0027]
  The battery box 100 has a charging port 100.dIs formed, and a charging plug 121 of the charger 112 is freely connectable thereto. The charging plug 121 and the charging port 100dBetween these, a comprehensive diagnosis apparatus 102 described later is connected. Reference numeral 123 denotes a power plug connected to a 100V power source.
[0028]
  The battery box 100 is connected to a vehicle controller (vehicle control device) 101 when mounted on the vehicle. The vehicle controller 101 controls the amount of electric power supplied to the electric motor to a value corresponding to the pedal depression force and the vehicle speed based on the detection values of the pedal depression force detection torque sensor and the vehicle speed detection vehicle speed sensor.
[0029]
  The vehicle controller 101 includes a torque sensor, a vehicle speed sensor, a motor, communication, etc.Vehicle travel equipmentA vehicle-side abnormality diagnosis mode for performing abnormality diagnosis is provided, and the abnormality diagnosis result can be displayed on the vehicle-side display unit 101a. Furthermore, the vehicle controller 101 has a built-in nonvolatile memory (EEPROM) 101b for storing and accumulating vehicle usage environment data by the user.
[0030]
  The bicycle 1 of the present embodiment also includes a self-propelled lever 14 for inputting a motor drive command from the outside. By operating the self-propelled lever 14, an electric motor can be used without inputting to the pedal 16 b. It is also possible to run with power alone.
[0031]
  The battery box 100 is detachably disposed on the vehicle body along the back surface of the seat tube 5 and sandwiched between the left and right seat stays 7 and 7. The battery box 100 includes a rechargeable battery (Ni-Cd battery) 100a formed by connecting a large number of single cells in series, a battery management device 100b that manages the battery state of the battery 100a, and usage environment data that will be described later. A battery device including a nonvolatile memory (EEPROM) 100c and the like for storage and storage is built in a casing.
[0032]
  The battery management device 100b has a battery-side abnormality diagnosis mode for diagnosing various abnormalities to be described later of the battery device, displays the diagnosis result on the battery-side display unit 119, and also indicates the usage status of the user. The usage environment data is stored and accumulated in the nonvolatile memory 100c. Here, when the diagnosis of the battery state in the battery-side abnormality diagnosis mode is started, the vehicle controller 101 is notified to that effect, and the vehicle controller 101 automatically executes the vehicle-side abnormality diagnosis mode, and the diagnosis result Is displayed on the vehicle side display unit 101a.
[0033]
  In this embodiment, the charging plug 121 of the charger 112 and the charging port 100 of the battery box 100 are used.dA comprehensive diagnostic device (external service unit) 102 is detachable between the two. The comprehensive diagnosis apparatus 102 includes the charging plug 121 and the charging port 100.dAnd a service tool (interface) 102a having a control IC and a communication IC, and a commercially available personal computer 102b connected to the service tool 102a via a communication line 102d.
[0034]
  The comprehensive diagnosis apparatus 102 can display usage environment data stored in the nonvolatile memory 100c of the battery management apparatus 100b on the screen (external display section) 102c by a keyboard operation of the personal computer 102b. In addition, the above-described battery diagnosis result, the vehicle-side diagnosis result, and information indicating the battery state such as the remaining battery capacity (relative capacity and absolute capacity) and the number of times of charging can be displayed on the screen 102c by the keyboard operation. Yes.
[0035]
  Here, by operating the display switch 138 of the battery side display unit 119 of the battery box 100, the usage environment data stored on the battery management device 100b side is changed.On the screen 102c of the personal computer 102bIt is also possible to display the battery status, such as the battery diagnostic result, the vehicle-side diagnostic result, the remaining battery capacity (relative capacity, absolute capacity), and the number of times of charging, by further operation of the display switch 138. .
[0036]
  Furthermore, when the comprehensive diagnosis apparatus 102 is connected, the vehicle controller 101 is notified to that effect, and the vehicle controller 101 outputs an assist prohibit command.
[0037]
  Further, the battery side display portion 119 is formed on the outer surface of the battery box 100. As shown in FIG. 7, the battery-side display unit 119 includes seven LEDs 140a to 140g, and displays a battery status such as an abnormality diagnosis result, remaining battery capacity (relative capacity, absolute capacity), and the number of times of charging. 119a and one LED 140h, and a notification display section for notifying of a refresh discharge request, refresh refresh, etc.119bAnd. In addition, LED numbers 1-8 in FIGS. 3-6 mean the said LED140a-140h in FIG.
[0038]
  A display switch 138 is disposed at the end of the main display portion 119a. Based on the pressing pattern of the display switch 138, the display contents of the LED are the normal display (relative capacity display FIG. 3), the absolute capacity display (FIG. 4), the charge count display (FIG. 5), and the abnormal display (FIG. 6). Can be switched to.
[0039]
Here, in the battery side display device 119 provided in the battery box 100, the display LEDs 1 to 7 (140a to 140g) can be turned on, off, and blinking ◎, and the notification LED 8 ( 140h) is turned on, turned off ○, blinking ◎ yellow or blinking ◎ red can be displayed.
[0040]
  The nonvolatile memory 100c of the battery management device 100b stores and accumulates service data (usage environment data) (a) and (b) indicating the user usage status. First, the following items are detected and stored as the service data (a).
(1) Battery type: for example NI-CD, NI-MH, (2) Number of batteries in series, (3) Number of times that the stop mode is entered: Stop mode that stops assist when the battery voltage falls below a predetermined low voltage However, the number of integrations, (4) Number of refresh notifications, (5) Number of times the discharge stop signal is output to the vehicle controller, (6) Learning capacity, (7) Minimum learning capacity, (8) Number of learning: Number of discharge 0% learning + refresh learning, (9) Number of charge counts after 0% learning or refresh learning, (10) Battery temperature during discharge: −5 ° C or less, (11) Number of capacity jumps : Count the number of times two or more jumps to the blinking LED display.
[0041]
  The following items are detected and stored as the service data (b).
(1) Charge stop count: Counts the number of charge stops for each charge stop cause (peak, ΔV, dT / dt, ΔT, Tco, timer, Vco).
(2) Number of times of charging: For example, the number of times of charging is counted for each of the remaining capacity (0 to 29, 30 to 79, 80 to 95%) divided into three stages. If the switch of the service tool 102a is continuously pressed for 20 seconds, the number of times of charging is displayed for 5 seconds or less.
(3) Total charge time: The counter is incremented by 1 every charge time 30.
[0042]
  As shown in FIG. 1, the comprehensive diagnosis apparatus 102 of the present embodiment is connected between the battery box 100 and the standard charger 112 when the battery box 100 is charged. The various functions of the comprehensive diagnosis apparatus 102 are realized by installing dedicated software 104a in a commercially available personal computer 102b. In addition to the standard type, the charger can of course also be a quick charger 112 ′, and the battery of the battery box 100 can be, for example, an NI-MH battery in addition to an NI-CD battery. .
[0043]
  The comprehensive diagnosis apparatus 102 according to the present embodiment can realize the following functions.
(1) Service tool initial setting function: specified software installation function, (2) service tool start function: software start function and copy protection function with password of specified serviceman, (3) abnormality diagnosis function: battery management device 100b As a function only at the time of replacement, that is, when communication with the vehicle controller 101 is not possible, the learning capacity is set at the start of refresh discharge, the number of times of charging is manually input, or the battery data is collectively input. In this case, reading and writing of ID data (only specified data) is performed in correspondence with a password. In addition, when a password is displayed as a function at the time of battery replacement, it has a function of writing and initializing new battery data to the battery management device 100b.
[0044]
  (4) Function for grasping and displaying the user usage environment: The general diagnostic apparatus 102, when a predetermined key operation is performed on the personal computer 102b, the service data (usage environment) stored in the nonvolatile memory 100c of the battery management apparatus 100b. Data) (a) and (b) are displayed on the screen 102c of the personal computer 102b.
[0045]
  Specifically, based on the above service data (a), (1) Battery type, (2) Number of batteries in series, (3) Number of times of entering stop mode, (4) Number of refresh notifications, (5) Discharge Number of times stop signal is output to vehicle controller, (6) Learning capacity, (7) Minimum learning capacity, (8) Number of learning, (9) Number of charging counts after 0% learning or refresh learning, (10 ) Based on the service data (b), the battery temperature at the time of discharge, (11) the number of capacity jumps, and (1) the number of charge stops, (2) the number of charges, and (3) the total charge time of the personal computer 102b It is displayed on the screen 102c.
[0046]
  By displaying the service data (use environment data), the service person knows the state of the battery in the battery box 100 of the bicycle, and based on this, for example, “use environment temperature is high / low” and “battery capacity is sufficient. It is possible to estimate how the bicycle is used by a user such as “I charge the battery after it has been fully used / I charge it frequently”.
[0047]
  Further, according to the pressing pattern of the display switch 138 of the battery side display unit 119 of the battery box 100, the display units 119a and 119b are displayed on the display units 119a and 119b: (1) Discharging (leaving), (2) Charging display, (3) Refreshing display , Can be performed. The battery-side display unit 119 has seven LEDs 1 to 7 and one LED 8 arranged in a line as described above, and turns on the display switch 138 or sets the on state to 10. , 20, 30 seconds, the LEDs 1 to 7 are turned on, turned off, blinked ◎, and the color of the LED 8 is turned on, turned off, turned off, blinked ◎ to display various information to the user. Done. The screen 102 is displayed by operating the keyboard of the personal computer 102b.cIn the same manner as described above, (1) Display during discharging (while standing), (2) Display during charging, and (3) Display during refresh may be performed. .
[0048]
  First, the normal display (relative capacity display) shown in FIG. 3 is performed in the display of (1) during discharging (while standing). In this normal display, as shown in the uppermost row of the figure, all the LEDs 1 to 8 are turned off when the switch is turned off, and when the user or the diagnostic practitioner turns on the display switch 138 for a short time, two points in FIG. As shown in the lower part of the chain line, the display of the relative capacity (current remaining capacity) of the battery and the refresh notification display regarding the refresh discharge are performed.
[0049]
  Specifically, the LEDs 1 to 7 are turned on. The larger the number, the greater the remaining capacity. If LED 8 is blinking yellow, it indicates that refresh discharge is required. If it is lit yellow, it indicates that refresh discharge is in progress. If it is lit in red, it is battery. Indicates that it has deteriorated.
[0050]
  When the user or the abnormality diagnosing person continues the switch-on for 10 seconds, for example, as shown in FIG. 4, the battery absolute capacity (battery potential capacity) display and refresh notification display are performed. In this case, the LEDs 1 to 7 are turned on. ● The larger the number, the greater the absolute capacity. If LED 8 is blinking yellow, it indicates that refresh discharge is required. If it is lit yellow, it indicates that refresh discharge is in progress. If it is lit in red, it is battery. Indicates that it has deteriorated.
[0051]
  When the user or the abnormality diagnosing person continues the switch-on for another 10 seconds (20 seconds from the start of the on-time), the number of times of charging is displayed as shown in FIG. Specifically, the LEDs 2 to 7 except for the LEDs 1 and 8 are turned on.
[0052]
  When the user or the diagnostic practitioner continues the switch-on for 10 seconds (for example, 30 seconds from the start of ON), an abnormality display or an abnormality display is performed as shown in FIG. In this case, the content of the abnormality differs depending on which LED is lit. For example, lighting of LED2 indicates that there is a charging current at the end of charging, lighting of LED3 indicates a hardware abnormality of the battery management device 100b, lighting of LED4 indicates an abnormality of the nonvolatile memory 100c, lighting of LED5 indicates an abnormality in voltage difference, and lighting of LED6 Indicates a battery voltage abnormality, and lighting of the LED 7 indicates a thermistor abnormality. Further, when all the LEDs 2 to 7 are blinking slowly, there is no abnormality.
[0053]
  The charging indicator (2) is displayed regardless of whether the switch of the service tool unit 102 is on or off when the service tool 102a is connected to the charger 112. In this case, as shown in the upper part of the two-dot chain line in FIG. 3, the number of lights ● of the LEDs 1 to 7 increases as the charge amount increases. Further, in this display during charging, when a refresh discharge is requested, the LED 8 blinks yellow. When refreshing, the LED 8 is lit yellow.
[0054]
  In the display during (3) refreshing, when refresh discharge is started, capacity display in which the number of lighting LEDs 1 to 7 decreases with the amount of refresh discharge is always performed. The refresh discharge amount may be displayed by operating the switch.
[0055]
  Furthermore, the following indication is given to the charger 112 during charging. That is, when the green lamp of the charger 112 is turned on, charging is indicated, blinking indicates preliminary charging at the time of overdischarge, waiting for a normal battery temperature range, and turning off indicates no battery connection or completion of charging, or supplementary charging.
[0056]
  The yellow lamp lights up to indicate that refresh is in progress, and blinks to indicate a refresh circuit error. Further, when the red lamp is turned on, battery abnormality (abnormal voltage, abnormal temperature, etc.) is indicated, communication with the battery device is abnormally indicated by quick flashing, and charger abnormality is indicated by slow flashing.
[0057]
  Then, when the battery-side abnormality diagnosis mode such as the battery state by the battery management device 100b is started, the comprehensive diagnosis device 102 notifies the vehicle controller 101 that the diagnosis has been started. Then, the vehicle controller 101 executes the above-described vehicle-side abnormality diagnosis mode.
[0058]
  As described above, the battery management device 100b diagnoses the abnormality of the battery device and displays the diagnosis result on the battery side display unit 119 provided in the battery box 100. In addition to being able to check the battery status, it is possible to check the abnormality and improve serviceability.
[0059]
  Further, since the usage environment data for indicating the usage status of the user is stored and accumulated in the nonvolatile memory 100c of the battery management device 100b, the external comprehensive diagnosis device 102 is connected to the battery management device 100b, thereby The stored use environment data is displayed on the screen 102 of the personal computer 102b.cThis makes it possible to deal with problems that are not abnormal but occur due to the user usage environment. Specifically, when a user brings in a complaint such as “the cruising range is short”, the usage environment of the user, or how the bicycle is used such as the charging environment and the memory effect is estimated based on the above usage environment data. It is possible to advise how to use it more appropriately.
[0060]
  Further, since the battery status such as the remaining capacity (relative capacity, absolute capacity) and the number of times of charging can be displayed on the battery side display unit 119, not only the battery abnormality but also the battery status can be easily confirmed. Can be improved.
[0061]
  When the battery management apparatus 100b starts diagnosis of the battery state by pressing the display switch 138 of the battery box 100, the vehicle controller 101 is notified of the fact and the vehicle controller 101 is in the vehicle-side abnormality diagnosis mode. Is automatically executed, and the diagnosis result is displayed on the vehicle-side display unit 101a, so that the state of the battery and the vehicle can be confirmed with a simple operation, and the consistency and accuracy of the diagnosis contents can be improved. Can be further improved.
[0062]
  Further, the operation of the comprehensive diagnosis apparatus 102 causes the screen 102 of the personal computer 102b to be displayed.cAlso, the battery diagnosis result, the vehicle-side diagnosis result, the remaining battery capacity (relative capacity, absolute capacity), the battery status such as the number of times of charging, etc. can be displayed, and the serviceability can be further improved.
[0063]
  Further, since the assist prohibition command is output when the general diagnostic device 102 is connected, it is possible to prevent the assist current from adversely affecting the diagnostic accuracy.
[0064]
  In the above-described embodiment, the case where the comprehensive diagnosis apparatus 102 includes the service tool 102a and a commercially available personal computer 102b has been described. However, the service tool 102a itself includes a display unit, a control unit, a switch operation unit, and the like. The service tool may be used to display the usage environment data and other information such as the battery status.
[0065]
  Moreover, in the said embodiment, although the battery state and the failure diagnosis result were displayed on the battery side display part 119 of a battery box, when charging with the charger provided with the display part, the said battery is displayed on the display part of this charger. It is also possible to display the status and the fault diagnosis result.
[0066]
  Furthermore, in the above-described embodiment, the usage environment data is displayed on the computer screen. However, the computer uses a software process to estimate and calculate how the vehicle is used by the user based on the usage environment data. It is also possible to display on a computer screen and to allow the serviceman to advise the user based on the display content.
[Brief description of the drawings]
FIG. 1 is a block diagram of a comprehensive diagnosis apparatus according to an embodiment of the present invention.
FIG. 2 is a left side view of a battery-assisted bicycle to which the comprehensive diagnosis apparatus is connected.
FIG. 3 is a diagram showing display contents of a battery side display unit.
FIG. 4 is a diagram showing display contents of the battery side display unit.
FIG. 5 is a diagram illustrating display contents of the battery side display unit.
FIG. 6 is a diagram showing display contents of the battery side display unit.
FIG. 7 is a schematic diagram of the battery-side display unit.
[Explanation of symbols]
1 Electric assist bicycle (electric vehicle)
100 Battery box (battery case)
100a rechargeable battery
100b Battery management device
101 Vehicle controller (vehicle control device)
101a Vehicle side display part
102 Comprehensive diagnosis device (external service unit)
102c screen (external display)
119 Battery side display
138 Display switch

Claims (7)

A battery case containing a battery device including a rechargeable battery and a battery management device for managing the battery state of the battery is mounted on the vehicle body, and the vehicle control device for controlling the running state of the vehicle is provided on the vehicle body side. In the electric vehicle, the battery management device has a battery-side abnormality diagnosis mode for diagnosing the abnormality of the battery device, displays the diagnosis result on a battery-side display unit provided in the battery case, and also displays the user's abnormality. Usage environment data for indicating the usage status is stored and accumulated, and the vehicle control device has a vehicle-side abnormality diagnosis mode for diagnosing abnormality of the vehicle travel device, and battery state diagnosis by the battery-side abnormality diagnosis mode is started. Then, the vehicle control device is notified of this, the vehicle control device automatically executes the vehicle-side abnormality diagnosis mode, and displays the diagnosis result on the vehicle-side display unit. vehicle 2. The electric vehicle according to claim 1, wherein the battery-side display unit can also display a battery state such as a remaining capacity (relative capacity and absolute capacity) of the battery and the number of times of charging. . The electric vehicle according to claim 1, further comprising: a display switch that causes the battery case to perform display by the battery-side display unit. A battery case containing a rechargeable battery and a battery device including a battery management device for managing the battery state of the battery is mounted on the vehicle body, and a vehicle control device for controlling the running state of the vehicle is provided on the vehicle body side. The battery management device has a battery-side abnormality diagnosis mode for diagnosing abnormality of the battery device, and displays the diagnosis result on a battery-side display unit provided in the battery case. In addition, it is configured to store and accumulate usage environment data for indicating the usage status of the user in the battery management device. The external service unit can be attached to and detached from the battery management device, and by operating the external service unit, the use environment data stored in the battery management unit and can be displayed on the external display unit of the external service unit, upon connection of the external service unit, above that effect Is notified to the vehicle control apparatus, said vehicle control apparatus overall diagnosis apparatus for an electric vehicle and outputs an assist prohibition command. 5. The comprehensive diagnosis apparatus for an electric vehicle according to claim 4, wherein the vehicle control device has a vehicle-side abnormality diagnosis mode for diagnosing an abnormality of the vehicle travel device, and is operated on the external display unit by an operation of the external service unit. A comprehensive diagnosis apparatus for an electric vehicle characterized in that the battery diagnosis result, battery diagnosis result, remaining battery capacity (relative capacity, absolute capacity), and battery status such as the number of times of charging can be displayed. 6. The comprehensive diagnosis apparatus for an electric vehicle according to claim 4 , wherein a display switch for executing display by the battery side display unit is provided in the battery case, and the battery management is performed on the external display unit by operating the display switch. A comprehensive diagnosis apparatus for an electric vehicle characterized in that use environment data stored in the apparatus can be displayed. Oite the overall diagnosis apparatus for an electric vehicle according to claim 6, the vehicle control device includes a vehicle-side abnormality diagnosis mode for diagnosing the abnormality of the vehicle driving system, the operation of the display switch, the external display unit And a battery status such as a battery diagnosis result, a vehicle-side diagnosis result, a remaining battery capacity (relative capacity, absolute capacity), and the number of times of charging.

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