JP2001128301A - Electric vehicle and integrated diagnostic device for the electric vehicle - Google Patents

Abstract

(57) [Problem] To provide an electric vehicle and a comprehensive diagnostic device for the electric vehicle which can easily grasp abnormal parts at a user and a store and can cope with a problem based on a use environment of the user. A rechargeable battery 100a and a battery case 100 including a battery device including a battery management device 100b for managing the battery state of the battery are mounted on a vehicle body. In the diagnostic device for an electric vehicle provided with a vehicle control device 101 for controlling, the battery management device 1
00b has a battery-side abnormality diagnosis mode for diagnosing an abnormality of the battery device, and displays a diagnosis result on a battery-side display section 119 provided in the battery case, and also indicates a use situation of a user. The external service unit 102 is configured to be detachable from the battery management device 100b, and the battery management device 100b is operated by operating the external service unit 102.
The use environment data stored in “b” can be displayed on the external display unit 102c on the external service unit 102.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle and a general diagnostic apparatus for diagnosing abnormalities of the electric vehicle and the like, and more particularly to a problem which can be solved by a user due to the use of the electric vehicle. Related to comprehensive diagnostic technology.

[0002]

2. Description of the Related Art Conventionally, service tools for diagnosing abnormalities or failures of individual parts of an electric bicycle have been proposed. In particular, there is a vehicle in which diagnosis unique to a vehicle can be displayed by a vehicle control device. On the other hand, with respect to diagnosis of abnormality of a battery mounted on an electric vehicle, there is a type that can display a discharge time of a battery by flowing a constant discharge current to a discharger. Most of these parts can be diagnosed by these service tools.

[0003]

In the case of the above-mentioned conventional service tools, when phenomena that can be said to be abnormal or faulty occur, these phenomena can be diagnosed. However, the use environment of the user, that is, the problem that the user feels dissatisfied due to usage, for example, the problem of “short cruising distance”, is due to the memory effect of the battery, the frequency of refresh discharge, the way of running, or the charging caused by the charging environment. There are many points such as shortage, and it is not possible to analyze the cause and give advice to the user by simple diagnosis of abnormality or failure.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems. By displaying a simple diagnosis result on a display unit of a battery case, for example, on a vehicle side, a user or a dealer can easily grasp abnormal parts. Further, by storing and storing usage environment data indicating the usage status of the user, it is possible to respond to a problem based on the usage environment of the user, for example, a problem that cannot be solved by a simple failure diagnosis such as "short cruising distance". It is an object to provide a vehicle and a comprehensive diagnostic device for the electric vehicle.

[0005]

According to a first aspect of the present invention, there is provided a battery case including a rechargeable battery and a battery device including a battery management device for managing a battery state of the battery. In an electric powered vehicle provided with a vehicle control device for controlling a running state of a vehicle on a vehicle body side, the battery management device has a battery side abnormality diagnosis mode for diagnosing abnormality of the battery device, and the diagnosis result is stored in the battery. It is characterized in that it is displayed on a battery-side display unit provided in a case, and that usage environment data for indicating the usage status of the user is also stored.

According to a second aspect of the present invention, in the first aspect, the battery side display section can display a battery state such as a remaining capacity (relative capacity, absolute capacity) of the battery and the number of times of charging. Features.

According to a third aspect of the present invention, in the first or second aspect, the vehicle control device has a vehicle-side abnormality diagnosis mode for diagnosing an abnormality of the vehicle traveling device, and the battery state is determined by the battery-side abnormality diagnosis mode. When the diagnosis is started, the fact is notified to the vehicle control device, the vehicle control device automatically executes the vehicle side abnormality diagnosis mode, and displays the diagnosis result on the vehicle side display unit. And

According to a fourth aspect of the present invention, in any one of the first to third aspects, the battery case has a display switch for executing a display by the battery-side display section.

According to a fifth aspect of the present invention, 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 a vehicle body. In a diagnostic device for an electric vehicle including a vehicle control device that controls the traveling state of the battery, the battery management device has a battery-side abnormality diagnosis mode for diagnosing an abnormality of the battery device,
The diagnosis result is displayed on a battery-side display unit provided in the battery case, and usage environment data for indicating the usage status of the user is stored and stored in the battery management device. The external service unit is made detachable to the device, and by the operation of the external service unit,
The use environment data stored in the battery management device can be displayed on an external display unit on the external service unit.

According to a sixth aspect of the present invention, in the fifth aspect, the operation of the external service unit causes the diagnosis result of the battery, the diagnosis result of the vehicle, and the remaining battery capacity (relative capacity, It is also characterized by the ability to display battery status such as absolute capacity) and the number of times of charging.

According to a seventh aspect of the present invention, in the fifth or sixth aspect, the battery case is provided with a display switch for executing a display by the battery-side display unit, and the external display unit is provided with the battery by operating the display switch. It is characterized in that the use environment data stored in the management device can be displayed.

According to an eighth aspect of the present invention, in accordance with the seventh aspect, the operation of the display switch causes the external display to display the battery diagnosis result, the vehicle diagnosis result, and the remaining battery capacity (relative capacity, absolute capacity). ), The battery status such as the number of times of charging can be displayed.

According to a ninth aspect of the present invention, when the external service unit is connected, the vehicle control device is notified of the fact when the external service unit is connected, and the vehicle control device outputs an assist prohibition command. It is characterized by:

Here, in the present invention, the occurrence of a failure is estimated based on use environment data indicating a user's use situation, and specific examples thereof are as follows, for example. (1) The charging environment is estimated and displayed based on the charging termination condition. (2) Estimate and display the used depth of discharge and the number of times of use from the number of times of charge and the charge start capacity. (3) Estimate and display usage time based on total charging time. (4) The frequency of occurrence of the memory effect is estimated from the number of refresh notifications and displayed. (5) The traveling environment is estimated and displayed from the number of start-ups during traveling. (6) Estimate and display the current remaining capacity from the battery learning capacity. (7) Estimate and display the number of times of running and refresh release from the learning frequency. (8) Estimate and display the learning interval based on the number of charges from the learning capacity. (9) Estimate and display the low-temperature battery usage environment from the battery ambient temperature. (10) Estimate the occurrence of the memory effect based on the number of occurrences of the capacity jump, and reset the optimal number of refresh discharges.

In the operation of the display switch according to the fourth aspect of the present invention, a plurality of operation patterns are set, and a relative capacity display, an absolute capacity display, and a charging capacity are displayed on the battery side display section in accordance with the operation pattern of the display switch. The number of times, the abnormal (or normal) display and the like may be displayed. In addition, during charging or refresh discharge, the battery capacity may be constantly displayed.

[0016]

According to the first aspect of the invention, the abnormality is diagnosed by the battery management device and the diagnosis result is displayed on the battery-side display section provided in the battery case. , The battery status can be easily checked at the store, and the abnormality can be checked, and the serviceability can be improved.

Further, since the use environment data for indicating the use condition of the user is stored and stored in the battery management device, an external service unit (computer) is connected to the battery management device. It is detachable, and by operating the external service unit, the use environment data stored in the battery management device can be displayed on an external display unit on the external service unit, whereby the service of a store or the like can be performed. The man can analyze the cause of a problem that is not abnormal but occurs due to the user usage environment and advise the user.

According to the second aspect of the invention, 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 section. The battery status can be easily checked without any trouble, and the serviceability can be improved.

According to the third aspect of the present invention, when the battery state diagnosis is started, the fact is notified to the vehicle control device, and the vehicle control device automatically executes the vehicle side abnormality diagnosis mode, Since the diagnosis result is displayed on the vehicle-side display unit, the state of the battery and the vehicle can be confirmed with a simple operation, the consistency and accuracy of the diagnosis content can be improved, and the serviceability can be further improved. .

According to the fourth aspect of the present invention, since the display switch for executing the display by the battery-side display section is provided in the battery case, the display operation of the diagnosis result is easy, and the serviceability is also improved in this respect. Can be improved.

According to the invention of claim 6, the operation of the external service unit causes the external display unit to display the battery diagnosis result, the vehicle side diagnosis result, and the remaining battery capacity (relative capacity, absolute capacity). , The state of the battery such as the number of times of charging can also be displayed, and the serviceability can be further improved.

According to the seventh aspect of the present invention, operating environment data can be displayed on the external display unit of the external service unit by operating the display switch of the battery case. The diagnosis result, the diagnosis result on the vehicle side, and the battery state such as the remaining battery capacity (relative capacity, absolute capacity) and the number of times of charging can also be displayed, and the display operation of the use environment data and the diagnosis result can be performed easily. Serviceability can be further improved.

According to the ninth aspect of the present invention, since the assist prohibition command is output when the external service unit is connected, it is possible to prevent the assist current from adversely affecting the diagnostic accuracy.

[0024]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 7 are views for explaining a comprehensive diagnosis device for an electric assisted bicycle according to one embodiment of the present invention. FIG. 1 is a block diagram showing the overall configuration of the comprehensive diagnosis device, and FIG. 3 to 6 are views for explaining the function of the above-described comprehensive diagnosis device, and FIG. 7 is a schematic diagram showing a battery-side display device.

In FIG. 2, reference numeral 1 denotes an electric assisted bicycle as an electric vehicle in which the charger 112 is not mounted on the vehicle and a detachable battery box (battery case) 100 is mounted on the vehicle. The body frame 2 of the electric assist bicycle 1 has a head pipe 3
A down tube 4 extending obliquely downward from the head pipe 3 toward the rear of the vehicle body; a seat tube 5 extending substantially upright from a rear end of the down tube 4; , A pair of left and right chain stays 6, a pair of left and right seat stays 7 connecting the rear ends of the chain stays 6 and the upper end of the seat tube 5, the head pipe 3 and the seat tube 5 and a top tube 11 for connecting to the top tube 5.

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 at the upper end. A saddle 12 is attached to 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.

Here, an instrument panel (not shown) provided with a speed meter and the like is provided at the center of the steering handle 10, and a vehicle-side display for displaying a vehicle-side diagnosis result described later is provided on this panel portion. A portion 101a (see FIG. 1) is provided.

At the lower end of the body frame, a crank arm 1 attached to both ends of the crank shaft 16 is provided.
A power unit 15 that outputs a combined force of a pedal depression force (manpower) input to the pedal 16b via the 6a and auxiliary power proportional to the magnitude of the manpower from the built-in electric motor is mounted. The output from the power unit 15 is transmitted to the rear wheel 13 via the chain 30.

A charging port 100a is formed in the battery box 100, and a charging plug 121 of a charger 112 can be connected to the charging port 100a. Then, a comprehensive diagnostic device 102 described later is connected between the charging plug 121 and the charging port 100a. Reference numeral 123 denotes a power plug connected to a 100 V power supply.

The battery box 100 is connected to a vehicle controller (vehicle control device) 101 when mounted on a vehicle. The vehicle controller 101 controls the amount of 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.

The vehicle controller 101 has a vehicle-side abnormality diagnosis mode for performing abnormality diagnosis of the torque sensor, the vehicle speed sensor, the motor, the communication, and the like. The result of the abnormality diagnosis can be displayed on the vehicle-side display section 101a. Has become.
Further, the vehicle controller 101 is provided with a nonvolatile memory (EE) for storing and storing vehicle use environment data by the user.
(PROM) 101b.

The bicycle 1 of this embodiment also has a self-propelled lever 14 for inputting a motor drive command from the outside. By operating the self-propelled lever 14, the bicycle 1 can be electrically driven without inputting to the pedal 16b. It is also possible to run only with the power from the motor.

The battery box 100 is detachably mounted on the vehicle body along the back surface of the seat tube 5 and sandwiched between the left and right seat stays 7,7. The battery box 100 includes a rechargeable battery (Ni-Cd) formed by connecting a number of cells in series.
Battery) 100a, a battery management device 100b for managing the battery state of the battery 100a, and a non-volatile memory (EEPROM) 1 for storing and storing use environment data and the like to be described later.
A battery device made of 00c or the like is built in a casing.

The battery management device 100b has a battery-side abnormality diagnosis mode for diagnosing various abnormalities of the battery device described later, displays the diagnosis result on the battery-side display section 119, and also displays the user's usage status. Is stored in the non-volatile memory 100c. Here, when the battery state diagnosis in the battery side abnormality diagnosis mode is started, the fact is notified to the vehicle controller 101, and the vehicle controller 101 automatically executes the vehicle side abnormality diagnosis mode, and Is displayed on the vehicle-side display section 101a.

In the present embodiment, the charger 112
Diagnostic device (external service unit) between the charging plug 121 and the charging port 100a of the battery box 100
102 is detachable. This comprehensive diagnostic device 10
Reference numeral 2 denotes a service tool (interface) 102a interposed between the charging plug 121 and the charging port 100a and having a control IC and a communication IC;
It is composed of a commercially available personal computer 102b connected to the device 02a via a communication line 102d.

The comprehensive diagnostic apparatus 102 displays the operating environment data stored in the nonvolatile memory 100c of the battery management apparatus 100b on its screen (external display unit) 102 by operating the keyboard of the personal computer 102b.
c can be displayed. By operating the keyboard, the screen 102c can also display the battery diagnosis result, the vehicle-side diagnosis result, and information indicating the battery state such as the remaining battery capacity (relative capacity, absolute capacity) and the number of times of charging. I have.

Here, by operating the display switch 138 of the battery side display section 119 of the battery box 100,
The use environment data stored in the battery management device 100b can be displayed, and the diagnosis result of the battery, the diagnosis result of the vehicle, and the remaining battery capacity (relative capacity, absolute capacity) can be displayed by further operating the display switch 138. ), The state of the battery such as the number of times of charging may also be displayed.

Further, when the comprehensive diagnostic apparatus 102 is connected, the vehicle controller 101 is notified of the connection, and the vehicle controller 101 outputs an assist prohibition command.

The battery-side display section 119 is formed on the outer surface of the battery box 100. As shown in FIG. 7, the battery-side display section 119 includes seven LEDs 1
40a to 140g, a main display unit 119a for displaying a battery state such as an abnormality diagnosis result, remaining battery capacity (relative capacity, absolute capacity), and the number of times of charging, and one LED 140h. A notification display unit for notifying that discharge is being performed. The LED numbers 1 to 8 in FIGS. 3 to 6 mean the LEDs 140a to 140h in FIG.

A display switch 138 is provided at an end of the main display section 119a. Based on the pressing pattern of the display switch 138, the display contents of the LEDs are displayed as normal display (relative capacity display FIG. 3), absolute capacity display (FIG. 4), charge count display (FIG. 5), and abnormal display (FIG. 6). Can be switched to

Here, in the battery-side display device 119 provided in the battery box 100, a display LED is provided.
1 to 7 (140a to 140g) can display ON, OFF, and blinking 、, and the notification LED 8 (14
0h) can be turned on, turned off, blinking yellow or blinking red.

In the nonvolatile memory 100c of the battery management device 100b, service data (use environment data) indicating a user use situation is stored and stored. First, the following items are detected and stored as the service data. (1) Battery type: For example, NI-CD, NI-MH (2) Number of batteries connected in series and parallel (3) Number of times to enter stop mode: When battery voltage falls below a predetermined low voltage, stop mode is entered in which assist is stopped. (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: 0% learning + refresh Number of learning (9) Number of charge counts after 0% learning or refresh learning (10) Number of times battery temperature during discharge: -5 ° C or less (11) Number of capacity jumps: Two or more jumps to blinking LED display Count the number of times

The following items are detected and stored as the service data. (1) Number of charging stops: Cause of charging stop (peak, ΔV, dT
/ Dt, ΔT, Tco, timer, Vco). (2) Number of charging: For example, the remaining capacity divided into three stages (0 to 0)
(29, 30-79, 80-95%), the number of times charging is started is counted. The service tool 10
When the switch 2a is kept pressed for 20 seconds, the number of charging times for 5 seconds or less is displayed. (3) Total charging time: The counter is incremented by one every 30 charging times.

The comprehensive diagnostic apparatus 102 of the present embodiment has a configuration shown in FIG.
As shown in (2), when the battery box 100 is charged, it is connected between the battery box 100 and the standard charger 112. Note that the various functions of the comprehensive diagnostic apparatus 102 are realized by installing dedicated software 104a on a commercially available personal computer 102b. In addition to the standard type, the charger may be a quick charger 112 ', and the battery of the battery box 100 may be, for example, an NI-MH battery in addition to the NI-CD battery. .

The general diagnostic apparatus 102 of this embodiment can realize the following functions. (1) Service tool initial setting function: Installation function of designated software (2) Service tool activation function: Software activation function and copy protection function with password of designated service person (3) Abnormality diagnosis function: Replacement of battery management device 100b As a function only at the time, that is, when communication with the vehicle controller 101 is not possible, there is a function of setting a learning capacity at the start of refresh discharge, manually inputting the number of times of charging, or collectively inputting battery data. In this case, reading and writing of ID data (only designated data) is performed in correspondence with a password. Also, when a password is displayed as a function at the time of battery replacement, it has a function of writing new battery data to the battery management device 100b and initializing the same.

(4) Function for grasping and displaying user's usage environment: The general diagnostic apparatus 102 is a personal computer 102b.
When a predetermined key operation is performed in, the service data (use environment data) stored in the nonvolatile memory 100c of the battery management device 100b is displayed on the screen 102c of the personal computer 102b.

Specifically, based on the above service data, (1) battery type, (2) number of battery series / parallel, (3) number of times to enter stop mode, (4) number of refresh notifications,
(5) Number of times the discharge stop signal is output to the vehicle controller, (6)
Learning capacity, (7) Minimum value of learning capacity, (8) Number of learning, (9)
Based on the above service data, (1) the number of charge stops, (2) the number of charges, (3) The total charging time is displayed on the screen 102c of the personal computer 102b.

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, "high / low use environment temperature", "battery" It is possible to estimate how the bicycle is used by a user, such as "charging / sufficiently charging after fully using the capacity".

Further, according to the pressing pattern of the display switch 138 of the battery-side display section 119 of the battery box 100, the display sections 119a and 119b show (1) a display during discharging (leaving), (2) a charging display, and (3) Refreshing display,
Can be performed. Note that the battery-side display section 11
9 has seven LEDs 1 to 7 and one LE as described above.
D8 are arranged in a line, and the display switch 138 is turned on or the on state is set to 10, 2
By continuing for 0 and 30 seconds, the display for transmitting various information to the user is performed by turning on, turning off, and blinking ◎ of the LEDs 1 to 7 and the color, turning on, turning off, and blinking ＬＥＤ of the LED 8. Will be The screen 102b of the personal computer 102b is operated by the keyboard operation of the personal computer 102b.
In the same manner as described above, (1) display during discharging (leaving), (2) display during charging, and (3) display during refresh may be performed. .

First, in the above-mentioned (1) display during discharge (during leaving), the normal display (relative capacity display) shown in FIG. 3 is performed.
In this normal display, all the LEDs 1 to 8 are turned off at the time of switch-off as shown in the top row of the figure, and when the user or the diagnostician turns on the display switch 138 for a short time, the two points in FIG. As shown in a portion below the chain line, the display of the relative capacity (current remaining capacity) of the battery and the display of the refresh notification regarding the refresh discharge are performed.

Specifically, lighting of the LEDs 1 to 7 indicates that the larger the number, the greater the remaining capacity. When the LED 8 blinks in yellow ◎, it indicates that a refresh discharge is required. When it is lit in yellow, it indicates that refresh discharge is in progress. Has deteriorated.

When the user or the person performing the abnormality diagnosis performs the switch-on for 10 seconds, for example, the display of the absolute capacity of the battery (potential capacity of the battery) and the refresh notice display are performed as shown in FIG. In this case LED
1 to 7 lighting ● The larger the number, the greater the absolute capacity. When the LED 8 blinks in yellow ◎, it indicates that a refresh discharge is required. When it is lit in yellow, it indicates that refresh discharge is in progress. Has deteriorated.

When the user or the person performing the abnormality diagnosis continues the switch-on for, for example, 10 seconds (20 seconds from the start of the ON), the number of times of charging is displayed as shown in FIG. Specifically, lighting of LEDs 2 to 7 excluding LEDs 1 and 8 indicates that the greater the number, the greater the number of times of charging.

When the user or the person performing the diagnosis described above continues the switch-on for further 10 seconds (30 seconds from the start of turning on), an abnormal display or an abnormal display is displayed as shown in FIG. In this case, the content of the abnormality differs depending on which LED is lit. For example, the lighting of LED2 indicates that there is a charging current at the end of charging, the lighting of LED3 indicates a hardware abnormality of the battery management device 100b, the lighting of LED4 indicates an abnormality of the nonvolatile memory 100c, the lighting of LED5 indicates a voltage difference abnormality, and the lighting of LED6. Indicates battery voltage abnormality, LED
Lighting 7 indicates a thermistor abnormality. LED
In the case where all of 2 to 7 are blinking slowly ◎, there is no abnormality.

The above-mentioned display during charging (2) is performed regardless of whether the switch of the service tool unit 102 is turned on or off when the charger 112 is connected to the service tool 102a. In this case, as shown in the upper part of the two-dot chain line in FIG. 3, the number of lightings of the LEDs 1 to 7 increases as the charge amount increases. In the display during charging, when a request for refresh discharge is made, the LED 8 blinks yellow in yellow. LE is being refreshed
D8 turns yellow.

In the above-mentioned (3) refreshing display, when the refresh discharge is started, the capacity display in which the number of lit LEDs 1 to 7 decreases with the refresh discharge amount is always performed. The refresh discharge amount may be displayed by operating the switch.

Further, the following display is made on the charger 112 during charging. That is, when the green lamp of the charger 112 is turned on, charging is being performed, blinking indicates pre-charging during overdischarge and waiting for a normal battery temperature range, and turning off indicates that no battery is connected or charging is completed, and auxiliary charging is being performed.

The yellow lamp indicates the refreshing state by lighting, and the blinking indicates the refresh circuit abnormality. Further, when the red lamp is lit, a battery abnormality (abnormal voltage, abnormal temperature, etc.) is indicated, a fast blink indicates a communication abnormality with the battery device, and a slow blink indicates a charger abnormality.

When the battery management apparatus 100b starts a battery side abnormality diagnosis mode such as a battery state, the comprehensive diagnosis apparatus 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.

As described above, the battery management device 100b diagnoses an abnormality of the battery device, and the diagnosis result is displayed on the battery-side display section 119 provided in the battery box 100.
, The battery status can be easily confirmed by the user and the shop, and the abnormality can be confirmed, so that the serviceability can be improved.

The usage environment data indicating the usage status of the user is stored in the nonvolatile memory 10 of the battery management device 100b.
0c, the battery management device 1
By connecting the external integrated diagnostic device 102 to the external diagnostic device 102b, the stored usage environment data can be displayed on the screen 102b of the personal computer 102b, which is not abnormal but occurs due to the user usage environment. Can handle problems. Specifically, when the user brings in a complaint such as “short cruising distance”, the usage environment of the user or the usage environment of the bicycle such as the charging environment and the memory effect is estimated based on the usage environment data. It will be possible to give advice on how to use it more appropriately.

Further, since the battery status such as the remaining capacity (relative capacity, absolute capacity) and the number of times of charging of the battery can be displayed on the battery side display section 119, not only the battery abnormality but also the battery status can be easily confirmed. And serviceability can be improved.

When the battery management device 100b starts diagnosing the battery state by pressing the display switch 138 of the battery box 100, the vehicle controller 101 is notified of the start of the diagnosis. Since the abnormality diagnosis mode is automatically executed and the diagnosis result is displayed on the vehicle-side display unit 101a, 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. In addition, the serviceability can be further improved.

The operation of the comprehensive diagnostic apparatus 102 allows the screen 102 of the personal computer 102b to be displayed.
Also in b, the battery diagnosis result, the vehicle-side diagnosis result, and the battery status such as the remaining battery capacity (relative capacity, absolute capacity) and the number of times of charging can be displayed, and the serviceability can be further improved.

Since the assist prohibition command is output when the comprehensive diagnostic device 102 is connected, it is possible to prevent the assist current from adversely affecting the diagnostic accuracy.

In the above embodiment, the integrated diagnostic device 1
02 has been described as being composed of a service tool 102a, a commercially available personal computer 102b, and the like. However, the service tool 102a itself has a dedicated design provided with a display unit, a control unit, a switch operation unit, and the like. Thus, the display of the use environment data and the display of other information such as the battery state may be performed.

In the above embodiment, the battery status and the failure diagnosis result are displayed on the battery side display section 119 of the battery box. However, when charging is performed by a charger having a display section, the display section of this charger is displayed. It is also possible to display the battery status and the result of the failure diagnosis.

Further, in the above-described embodiment, the use environment data is displayed on the computer screen. However, the use of the vehicle by the user is estimated and calculated by software processing of the computer based on the use environment data. The result can be displayed on a computer screen, and the service person can advise the user based on the displayed content.

[Brief description of the drawings]

FIG. 1 is a block configuration diagram of a comprehensive diagnostic device according to an embodiment of the present invention.

FIG. 2 is a left side view of the battery-assisted bicycle to which the comprehensive diagnostic device 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 showing 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]

 DESCRIPTION OF REFERENCE NUMERALS 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 unit 102 comprehensive diagnostic device (external service unit) 102c screen (external display) Section) 119 Battery side display section 138 Display switch

Claims (9)

[Claims] A battery case including a rechargeable battery and a battery device including a battery management device for managing a battery state of the battery is mounted on a vehicle body, and a running state of the vehicle is controlled on the vehicle body side. In the electric vehicle including the vehicle control device, the battery management device has a battery-side abnormality diagnosis mode for diagnosing abnormality of the battery device, and displays a diagnosis result on a battery-side display unit provided in the battery case. And an electric vehicle characterized by storing and storing usage environment data for indicating the usage status of the user. 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, absolute capacity) of the battery and the number of times of charging. . 3. The vehicle control device according to claim 1, wherein the vehicle control device has a vehicle side abnormality diagnosis mode for diagnosing an abnormality of the vehicle traveling device, and diagnosis of a battery state in the battery side abnormality diagnosis mode is started. The vehicle control device automatically notifies the vehicle control device of a vehicle-side abnormality diagnosis mode and displays the diagnosis result on the vehicle-side display section. 4. The electric vehicle according to claim 1, further comprising: a display switch on the battery case for executing a display by the battery-side display unit. 5. A battery case containing a rechargeable battery and a battery device such as a battery management device for managing the battery state of the battery is mounted on a vehicle body, and the running state of the vehicle is controlled on the vehicle body side. The battery management device has a battery-side abnormality diagnosis mode for diagnosing abnormality of the battery device, and the diagnostic result is provided in the battery case in the battery case. Displayed on the side display,
In addition, the battery management device is configured to store and store usage environment data for indicating the usage status of the user. An external service unit is detachably attached to the battery management device, and the external service unit is operated by operating the external service unit. An integrated diagnostic device for an electric vehicle, wherein usage environment data stored in a battery management device can be displayed on an external display unit on the external service unit. 6. The operation result of the external service unit according to claim 5, wherein the result of diagnosis of the battery, the result of diagnosis of the vehicle, the remaining battery capacity (relative capacity, absolute capacity), and the number of times of charging are displayed on the external display unit. And a battery status of the electric vehicle. 7. The battery management device according to claim 5, wherein a display switch for executing display by the battery-side display unit is provided on the battery case, and the external display unit is stored in the battery management device by operating the display switch. An integrated diagnosis device for an electric vehicle, wherein the use environment data obtained can be displayed. 8. The operation of the display switch according to claim 7, wherein the result of diagnosis of the battery, the result of diagnosis of the vehicle, the remaining battery capacity (relative capacity, absolute capacity), the number of times of charging, and the like are displayed on the external display unit. A comprehensive diagnostic device for an electric vehicle, wherein the battery state of the electric vehicle can be displayed. 9. The vehicle control device according to claim 5, wherein when the external service unit is connected, the vehicle control device is notified of the connection, and the vehicle control device outputs an assist prohibition command. Comprehensive diagnostic device for electric vehicles.