JP2006014412A - Electric vehicle controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric vehicle controller which can suppress the extensive damage of a device due to the fault of a regenerative power storage means. <P>SOLUTION: The electric vehicle controller has a power converter which is mounted on an electric vehicle and controls a motor for driving the electric vehicle, and the regenerative power storage means which temporally stores the regenerative power generated from the above power converter when an electric vehicle made a regenerative brake work. The above regenerative power storage means is housed in a device box which is insulated from the car body of the electric vehicle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric vehicle control device.

In recent years, in order to effectively use energy, the regenerative power generated from the power converter during regenerative braking is stored in the power storage means, and the regenerative power stored in the power storage means during power running is converted by the power converter, Development of an electric vehicle control device used for driving a car is underway.

A conventional electric vehicle control device will be described in detail with reference to the drawings. FIG. 11 is a block diagram of a conventional electric vehicle control device. FIG. 12 is a block diagram of a conventional electric vehicle control device that is different from the conventional electric vehicle control device shown in FIG.

The conventional electric vehicle control apparatus shown in FIG. 11 is connected in parallel with an inverter 1 and an inverter 1 that are connected via a pantograph 4, a contactor 5 and a reactor 6 that collect overhead power via the overhead wire 3 and that convert the overhead power. It is composed of a connected filter capacitor 10, an inverter 1, and an electric twentieth capacitor group 2 composed of a plurality of capacitor cells 11 connected in parallel with the filter capacitor 10. An electric motor 7 is connected to the AC output side of the inverter 1.

In the electric vehicle control apparatus configured as described above, the overhead line power supplied from the substation (not shown) is collected by the pantograph 4 via the overhead line 3, and the inverter 1 via the contactor 5 and the filter reactor 6. And converted into three-phase AC power by the inverter 1. The inverter 1 supplies three-phase AC power to the electric motor 7. The DC power output from the DC side output terminal of the inverter 1 flows into the rail 9 through the wheel 8 and returns to the substation.

In the electric vehicle control apparatus configured as described above, the electric double layer capacitor group 2 is configured such that a plurality of capacitor cells 11 are connected in series to satisfy the required rated voltage and capacity. It has a much larger capacitance.

Each component constituting the electric vehicle control device including the electric double layer capacitor group 2 is housed in a metal device housing 12. The device housing 12 is generally installed under the vehicle body floor. The metal device housing 12 connects the device housing 12 and the vehicle body 12 with metal for the purpose of preventing malfunction of electronic components such as semiconductors and malfunction of printed circuit boards due to noise. The ground potential is taken. Therefore, the apparatus housing 12 is attached to the vehicle body at the same potential and is grounded to the rail 9, that is, the ground potential via the wheel 8.

  The conventional electric vehicle control device configured as described above stores the regenerative power generated from the power conversion device during the regenerative operation in the electric double layer capacitor group 2 which is a power storage means, and at the time of power running, the electric twentieth layer capacitor The regenerative power stored in No. 2 was converted by the inverter 1 together with the overhead power and used for the operation of electric cars.

  However, in the above-described conventional electric vehicle control device, when the voltage of the electric twentieth capacitor group 2 is lower than the overhead line voltage, the power conversion device 1 converts the electric power charged in the electric twentieth capacitor group. It could not be used with overhead power.

Therefore, an electric vehicle control device has been devised via a DC / DC converter 13 which is another power conversion device between the inverter 1 and the electric double layer capacitor group 2 as shown in FIG.

In the electric vehicle control apparatus configured as described above, even when the voltage of the electric double layer capacitor group 2 is lower than the overhead line voltage, the voltage of the electric double layer capacitor group 2 is boosted by the DC / DC converter 13 and the overhead power is increased. It could be used in the power conversion device 1 (see Patent Document 1).
JP 2002-305803 A

However, in the conventional electric vehicle control device, when the capacitor cell 11 constituting the electric double layer capacitor group 2 fails, the energy accumulated in the electric double layer capacitor group 2 through the grounded device housing 12 is reduced. Released and a ground fault occurs. When such a ground fault occurs, the energy stored in the electric double layer capacitor group 2 is much larger than that of the filter capacitor 10 as described above, so that the damage to the device is further expanded, causing burnout and smoke generation. May cause fire.

Furthermore, compared with the filter capacitor 10, the electric double layer capacitor group 2 is configured by connecting a large number of capacitor cells 11 in series or in parallel, so that the number of parts is large, and the failure rate of the electric twenty layer capacitor group 2 is assumed. Since it is higher than the filter capacitor 10, it is necessary to consider a higher level than the filter capacitor 10 for the above ground fault. Of course, it is necessary to improve the reliability of the capacitor cell 11 itself, but it must be avoided that a failure of the capacitor cell 11 causes the system to stop and the system recovery becomes difficult.

Then, an object of this invention is to provide the electric vehicle control apparatus which can suppress the expansion damage of the apparatus by the failure of a regenerative electric power storage means.

The above-described problem includes a power conversion device that controls an electric motor, and regenerative power storage means that temporarily stores regenerative power generated by the power conversion device when a vehicle operates a regenerative brake. This can be achieved by storing the power storage means in a device box insulated from the body of the electric vehicle.

The above-described problem includes a power conversion device that controls an electric motor, and regenerative power storage means that temporarily stores regenerative power generated by the power conversion device when a vehicle operates a regenerative brake. This can be achieved by storing the power storage means in a device box made of an insulating material.

The above-described problem includes a power conversion device that controls an electric motor, and regenerative power storage means that temporarily stores regenerative power generated by the power conversion device when a vehicle operates a regenerative brake. The power storage means can be achieved by being housed in a housing whose inner surface is covered with an insulating material.

The problem includes a power conversion device that controls an electric motor, and regenerative power storage means that temporarily stores regenerative power generated by the power conversion device when the power conversion device performs a regenerative operation, The regenerative power storage means is divided and arranged in a plurality of power storage banks, and each of the plurality of power storage banks of the regenerative power storage means is covered with an insulating material except for a terminal block part or a connector part that serves as an electrical connection part to the outside. This can be achieved by having a broken structure.

The problem includes a power conversion device that controls an electric motor, and regenerative power storage means that temporarily stores regenerative power generated by the power conversion device when the power conversion device performs a regenerative operation, The regenerative power storage means can be divided and arranged in a plurality of power storage banks, and the plurality of power storage banks of the regenerative power storage means can be achieved by being partitioned by partitions of insulating material.

The above-described problems include a power conversion device that controls an electric motor, regenerative power storage means that temporarily stores regenerative power generated by the power conversion device when the vehicle operates a regenerative brake, and the regenerative power storage means. This can be achieved by providing a current interrupting means for interrupting the current in the event of failure.

According to the present invention, it is possible to provide an electric vehicle control device capable of suppressing the expansion damage of the device due to the failure of the regenerative power storage means.

(First embodiment)
An electric vehicle control apparatus according to a first embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1A is a block diagram showing the configuration of the electric vehicle control apparatus according to the first embodiment of the present invention. FIG.1 (b) is a block diagram of the electric vehicle control apparatus of 1st Embodiment based on this invention. The electronic components that perform switching control of the semiconductor element, the filter capacitor 10 and the like are described as other electrical components 15a and 15b, and peripheral circuit components of the electric double layer capacitor group 2, such as resistors, fuses, and contactors. Components that are relatively less susceptible to noise, such as, are described as other electrical components 15c.

The electric vehicle control apparatus according to the first embodiment of the present invention includes an inverter 1 that is connected via a pantograph 4 that collects overhead line power via an overhead line 3, a contactor 5, and a reactor 6 and that converts overhead line power. It comprises a filter capacitor 10 connected in parallel with the inverter 1, and an electric twentieth capacitor group 2 constituted by a plurality of capacitor cells 11 connected in parallel with the inverter 1 and the filter capacitor 10. An electric motor 7 is connected to the AC output side of the inverter 1.

In the electric vehicle control apparatus configured as described above, the DC power collected by the pantograph 4 from the overhead line 3 is supplied to the inverter 1 via the contactor 5 and the filter reactor 6, and is converted into three-phase AC power by the inverter 1. It is converted and supplied to the drive motor 7.

The inverter 1 of the power conversion device configured as described above is housed in a device housing 12 a that is attached to the vehicle body at the same potential and grounded to the rail 9 via the wheels 8. On the other hand, the electric double layer capacitor group 2 composed of a plurality of capacitor cells 11 is a device separate from the device housing 12a connected to the vehicle body 14 via an insulator 16 which is one of the insulating means. Housed in the housing 12b.

In the electric vehicle control apparatus configured as described above, the electric double layer capacitor group 2 is configured such that a plurality of capacitor cells 11 are connected in series to satisfy the required rated voltage and capacity. It has a much larger capacitance.

In the electric vehicle control device configured as described above, in addition to the electric double layer capacitor group 2, a component 15c that is relatively less susceptible to noise, such as a resistor, a fuse, and a contactor, is housed in the device housing 12b. Has been.

The electric vehicle control device configured as described above opens the contactor 5 during regenerative braking, stores regenerative power in the electric double layer capacitor group 2, and the voltage of the electric double layer capacitor group 2 is equal to or higher than the voltage of the overhead line 3. When the power reaches the electric power, the electric power stored in the electric double layer capacitor group 2 can be supplied to the inverter 1 during powering.

In the electric vehicle control device configured as described above, when a ground fault occurs in the charged portion in the inverter 1, the contactor 5 is released, the overhead power from the overhead wire 3 is cut off, and the filter capacitor 10 stores the electric power. The energy that is present is released at the ground fault.

As described above, when a ground fault occurs in the electric double layer capacitor group 2 having a capacity much larger than that of the filter capacitor 10, the energy released there is enormous. Although the electric double layer capacitor group 2 cannot be separated from the power conversion device even if the device 5 is released, the electric vehicle control device of the present embodiment causes a failure in the capacitor cell 11 so that the charged portion touches the device housing. Even when a serious accident occurs, the device casing 12b in which the electric double layer capacitor group 2 is accommodated is attached to the vehicle body 14 via the insulator 16, so that the device casing 12b is connected to the ground (ground potential). There is no inflow.

The electric vehicle control device configured as described above can minimize damage to the device and the system due to a ground fault caused by one failure of a large number of capacitor cells 11 constituting the electric double layer capacitor group 2. .

The electric vehicle control device configured as described above is realized by insulating the device housing 12b in which the electric double layer capacitor group 2 is housed from the vehicle body, but the electronic components are grounded device housing 12a. Therefore, it is possible to prevent malfunction due to noise.

The electric vehicle control device configured as described above prevents the release of a huge amount of built-in energy and minimizes the expansion damage even if a failure corresponding to the ground fault mode of the regenerative power storage means composed of a large number of parts occurs. It becomes possible to suppress.

In the electric vehicle control device according to the first embodiment of the present invention, the contactor 5 and the filter reactor 6 are also housed in the device housing 12a. It may be installed or separately housed in a separate device housing.

(Second Embodiment)
An electric vehicle control apparatus according to a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 2 is a configuration diagram of an apparatus in which an electric double layer capacitor of an electric vehicle control apparatus according to a second embodiment of the present invention is housed. Note that the same structural elements as those shown in FIG.

In the electric vehicle control device of the second embodiment based on the present invention, the device housing 12c in which the electric double layer capacitor group 2 is housed is directly attached to the vehicle body 14 and does not go through the insulator 16 or the like. The device housing 12c is made of an insulating material such as FRP. The device housing 12a side in which the inverter 1 is housed is the same as that in the first embodiment and is not shown.

According to the electric vehicle control device of the present embodiment, the device housing 12c is insulated even when the capacitor cell 11 constituting the electric double layer capacitor group 2 is in contact with the device housing 12c due to a failure. Since it is made of a material, the energy stored in the electric double layer capacitor group 2 is not released and does not cause expansion damage.

Also in the electric vehicle control device of the present embodiment, since electronic components are housed in the grounded device casing 12a, malfunction due to noise is prevented.

(Third embodiment)
An electric vehicle control apparatus according to a third embodiment of the present invention will be described in detail with reference to the drawings. FIG. 3 is a configuration diagram of an apparatus housing in which an electric double layer capacitor of an electric vehicle control apparatus according to a third embodiment of the present invention is accommodated. Note that the same structural elements as those described in FIGS. 1 and 2 are denoted by the same reference numerals and description thereof is omitted.

In the electric vehicle control device according to the third embodiment of the present invention, the device housing 12d in which the electric double layer capacitor group 2 is housed is directly attached to the vehicle body 14 and does not go through an insulator or the like. An insulating frame 17 using, for example, FRP or the like is provided on the inner wall surface of the housing 12d. The device housing 12a side in which the inverter 1 is housed is the same as that of the first embodiment and is not shown.

According to the electric vehicle control apparatus of the present embodiment, since the insulating frame 17 is provided even when the capacitor cell 11 constituting the electric double layer capacitor group 2 is broken and the charged portion is scattered to the apparatus housing 12d side, The energy stored in the double layer capacitor group 2 is not released and does not cause expansion damage.

Also in the electric vehicle control device of the present embodiment, since electronic components are housed in the grounded device casing 12a, malfunction due to noise is prevented.

(Fourth embodiment)
An electric vehicle control apparatus according to a fourth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 4A is a configuration diagram of an apparatus housing in which an electric double layer capacitor of an electric vehicle control apparatus according to a fourth embodiment of the present invention is housed. FIG.4 (b) is a block diagram of the electric double layer capacitor group 2 of the electric vehicle control apparatus of 4th Embodiment based on this invention. The same structural elements as those shown in FIGS. 1 to 3 are denoted by the same reference numerals and description thereof is omitted.

In the electric vehicle control apparatus according to the fourth embodiment of the present invention, the device casing 12e in which the electric double layer capacitor group 2 is housed is directly attached to the vehicle body 14, but the surroundings of the electric double layer capacitor group 2 are Insulation cover 18 is provided. The external electrical connection terminal portion 2a protrudes from a portion where the insulating cover 18 is partially opened. The apparatus housing 12a side in which the inverter 1 is housed is the same as that of the first embodiment, and this is not shown.

The electric vehicle control apparatus according to the present embodiment is covered with the insulating cover 18 even when the capacitor cell 11 constituting the electric double layer capacitor group 2 is broken and the charged portion is scattered outside the electric double layer capacitor group 2. Therefore, there is no scattering to the device casing 12e, so that the energy accumulated in the electric double layer capacitor group 2 is not released and does not cause expansion damage.

Also in the electric vehicle control device of the present embodiment, since electronic components are housed in the grounded device casing 12a, malfunction due to noise is prevented.

In addition, in the electric vehicle control apparatus based on this invention, since the structure of the electrical connection terminal part 2a and the insulation cover 18 can also be considered, only the structure of the electrical connection terminal part 2a and the insulation cover 18 of this embodiment is used. It goes without saying that it is not limited.

(Fifth embodiment)
An electric vehicle control apparatus according to a fifth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is a configuration diagram of an apparatus housing in which an electric double layer capacitor of an electric vehicle control apparatus according to a fifth embodiment of the present invention is housed. Components identical in structure to those described in FIGS. 1 to 4 are designated by the same reference numerals and description thereof is omitted.

In the electric vehicle control apparatus according to the fifth embodiment of the present invention, the capacitor bank 19 (power storage bank) is composed of a plurality of capacitor cells 11, and the electric double layer capacitor group 2 is composed of a plurality of capacitor banks 19. Has been. The capacitor bank 19 is connected in series or in parallel to constitute the electric double layer capacitor group 2.

In the electric vehicle control device configured as described above, the inside of the device housing 12e directly attached to the vehicle body 14 is partitioned by the insulating partition frame 20, and the capacitor bank 19 is stored in each of them. Here, as a matter of course, the insulating partition frame 20 is partially opened at the electrical connection terminal portion to the outside of the capacitor bank 19. The device housing 12a side in which the inverter 1 is housed is the same as that in the first embodiment, and this is not shown.

The electric vehicle control apparatus according to the present embodiment is partitioned by the insulating partition frame 20 even if the charged portion is scattered outside the electric double layer capacitor group 2 due to a failure of the capacitor cell 11 constituting the electric double layer capacitor group 2. Further, damage can be suppressed within one capacitor bank 19, and expansion damage can be minimized.

Also in the electric vehicle control device of the present embodiment, since electronic components are housed in the grounded device casing 12a, malfunction due to noise is prevented.

(Sixth embodiment)
An electric vehicle control apparatus according to a sixth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 6 is a block diagram showing a configuration of an electric vehicle control apparatus according to a sixth embodiment based on the present invention. The same structural elements as those shown in FIGS. 1 to 5 are designated by the same reference numerals and the description thereof is omitted.

In the electric vehicle control apparatus according to the sixth embodiment of the present invention, the negative potential of the electric double layer capacitor group 2 and the negative potential of the inverter 1 serving as the power converter are connected to become a ground potential via the fuse 21. Connected to wheels 8. In the event of a ground fault in the electric double layer capacitor group 2, the ground fault current flowing on the negative potential side is interrupted at high speed by the fuse 21. This can prevent the expansion damage.

Also in the electric vehicle control device of the present embodiment, since electronic components are housed in the grounded device casing 12a, malfunction due to noise is prevented.

In the electric vehicle control device of the present embodiment, an example in which a fuse is applied as a current interrupting means has been described. However, a high-speed circuit breaker that mechanically opens a contact and interrupts the current may be used, or a semiconductor A circuit breaker or the like may be used.

(Seventh embodiment)
An electric vehicle control apparatus according to a seventh embodiment of the present invention will be described in detail with reference to the drawings. FIG. 7 is a configuration diagram of an electric vehicle control device according to a seventh embodiment of the present invention. Components that are structurally the same as those described in FIGS. 1 to 6 are given the same reference numerals and description thereof is omitted.

  In the electric vehicle control apparatus according to the seventh embodiment based on the present invention, the high-speed circuit breaker 22 is provided for each capacitor bank 19.

The electric vehicle control apparatus according to the present embodiment is compatible with the failed capacitor bank 19 even if the capacitor cell 11 constituting the electric double layer capacitor group 2 is broken and the charged portion is scattered outside the electric double layer capacitor group 2. By opening the high-speed circuit breaker 22, the damage can be suppressed in one capacitor bank 19, and the expansion damage can be minimized.

Also in the electric vehicle control device of the present embodiment, since electronic components are housed in the grounded device casing 12a, malfunction due to noise is prevented.

In the electric vehicle control device of the present embodiment, an example in which a fuse is applied as a current interrupting means has been described. However, a high-speed circuit breaker that mechanically opens a contact and interrupts the current may be used, or a semiconductor A circuit breaker or the like may be used.

(Eighth embodiment)
An electric vehicle control apparatus according to an eighth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 8 is a block diagram of an electric vehicle control apparatus according to a seventh embodiment of the present invention. The same structural elements as those described in FIGS. 1 to 7 are designated by the same reference numerals and description thereof is omitted.

In the electric vehicle control apparatus of the eighth embodiment based on the present invention, the high-speed circuit breakers 22 are respectively provided on the wheels 8 side of the electric double layer capacitor cells 11 connected in series. In the electric vehicle control apparatus of the present embodiment, two electric double layer capacitor cell 11 circuits connected in series are connected in parallel, so that one high-speed circuit breaker 22 is provided for each, and two in total. The electric vehicle control device includes a high-speed circuit breaker 22.

The electric vehicle control apparatus according to the present embodiment is compatible with a failed capacitor cell 11 even if a charged portion is scattered outside the electric double layer capacitor group 2 due to a failure of the capacitor cell 11 constituting the electric double layer capacitor group 2. Damage can be suppressed by opening the high-speed circuit breaker 22 on the closed side, and expansion damage can be minimized.

Also in the electric vehicle control device of the present embodiment, since electronic components are housed in the grounded device casing 12a, malfunction due to noise is prevented.

In the electric vehicle control device of the present embodiment, an example in which a fuse is applied as a current interrupting means has been described. However, a high-speed circuit breaker that mechanically opens a contact and interrupts the current may be used, or a semiconductor A circuit breaker or the like may be used.

Although the respective embodiments have been described, it is of course possible to apply them in combination, and it is possible to further prevent the expansion damage. Moreover, although the description has been given by describing the embodiment in which the device housing for storing the power conversion portion and the device housing for storing the electric double layer capacitor are configured as completely separate, each device housing is insulated via insulation. It is also possible to configure as a united and united device. As shown in FIG. 9, another device case is insulated by insulating a part of the device case (grounded to the vehicle body) that houses the power conversion part. It is also possible to configure a combination of the techniques described in the present invention to install the electric double layer capacitor in a heavy installation. Further, each embodiment of the present invention has been described based on the block diagram of FIG. 11 which is a conventional example. However, as shown in the block diagram of FIG. Of course, even when the electric double layer capacitor is connected via the device casing, the same configuration can be made on the device housing side in which the electric double layer capacitor is accommodated. (The DC / DC converter is preferably housed in a grounded device case for noise countermeasures (see FIG. 10).)

(A) It is a block diagram of the electric vehicle control apparatus of 1st Embodiment based on this invention.

(B) It is a block diagram of the electric vehicle control apparatus of 1st Embodiment based on this invention.
It is a block diagram of the electric vehicle control apparatus of 2nd Embodiment based on this invention. It is a block diagram of the electric vehicle control apparatus of 3rd Embodiment based on this invention. (A) It is a block diagram of the electric vehicle control apparatus of 4th Embodiment based on this invention.

(B) It is a block diagram of the electric double layer capacitor of the electric vehicle control apparatus of 4th Embodiment based on this invention.
It is a block diagram of the electric vehicle control apparatus of 5th Embodiment based on this invention. It is a block diagram of the electric vehicle control apparatus structure of 6th Embodiment based on this invention. It is a block diagram of the electric vehicle control apparatus structure of 7th Embodiment based on this invention. It is a block diagram of the electric vehicle control apparatus of 8th Embodiment based on this invention. It is a block diagram of the electric vehicle control apparatus of other embodiment based on this invention. It is a block diagram of the electric vehicle control apparatus of other embodiment based on this invention. It is a block diagram of the conventional electric vehicle control apparatus. It is a block diagram of the conventional electric vehicle control apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Inverter 2 ... Electric double layer capacitor 3 ... Overhead wire,
4 ... Pantograph 5 ... Contactor 6 ... Filter reactor,
7 ... Driving motor 8 ... Wheel 9 ... Rail 10 ... Filter capacitor 11 ... Capacitor cell 12, 12a, 12b, 12c, 12d, 12e ... Device housing 13 ... DC / DC converter 14 ... car bodies 15a, 15b, 15c ... other electrical components 16 ... insulator 17 ... insulation frame 18 ... insulation cover 19 ... capacitor bank 20 ...・ Insulation partition frame 21... Fuse 22.

Claims (6)

A power converter for controlling the electric motor;
Regenerative power storage means for temporarily storing the regenerative power generated by the power converter when the power converter performs a regenerative operation,
An electric vehicle control device characterized in that the regenerative power storage means is housed in a device box insulated from the body of the electric vehicle. A power converter for controlling the electric motor;
Regenerative power storage means for temporarily storing the regenerative power generated by the power converter when the power converter performs a regenerative operation,
An electric vehicle control device characterized in that the regenerative power storage means is housed in a device box made of an insulating material. A power converter for controlling the electric motor;
Regenerative power storage means for temporarily storing the regenerative power generated by the power converter when the power converter performs a regenerative operation,
The electric vehicle control device according to claim 1, wherein the regenerative power storage means is housed in a housing having at least an inner surface covered with an insulating material. A power converter for controlling the electric motor;
Regenerative power storage means for temporarily storing the regenerative power generated by the power converter when the power converter performs a regenerative operation,
The regenerative power storage means is divided and arranged in a plurality of power storage banks, and the plurality of power storage banks of the regenerative power storage means are made of an insulating material except for a terminal block part or a connector part that serves as an electrical connection part to the outside. An electric vehicle control device having a covered configuration. A power converter for controlling the electric motor;
Regenerative power storage means for temporarily storing the regenerative power generated by the power converter when the power converter performs a regenerative operation,
The regenerative power storage means is divided and arranged in a plurality of power storage banks, and the plurality of power storage banks of the regenerative power storage means is partitioned by partitions of insulating material. A power converter for controlling the electric motor;
When this power converter performs a regenerative operation, regenerative power storage means for temporarily storing the regenerative power generated by the power converter, and
An electric vehicle control device comprising: a current interruption means for interrupting a current when the regenerative power storage means fails.

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