JP2023083188A - Mobile power source vehicle - Google Patents

Abstract

To provide a mobile power source vehicle which can supply power in response to various different needs in a disaster site.SOLUTION: A mobile power source vehicle 1 includes: two internal combustion engines, a diesel engine 11 and an LPG engine 12; an AC generator 16 and a DC generator 17A driven by the LPG engine 12; a DC generator 17B driven by the diesel engine 11; and a large-capacity battery 13 for storing the DC power generated by the DC generators 17A and 17B. Power that the AC generator 16 is generating can be supplied to a power reception device and DC power stored in the large-capacity battery 13 can be supplied to the power reception device.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a mobile power source vehicle capable of traveling.

A mobile power supply vehicle has, for example, a power supply device such as a power generation device and a power storage device. (see, for example, Patent Literature 1 below).

JP 2013-27194 A

Mobile power supply vehicles are also expected to serve as an emergency power supply source at disaster sites. At disaster sites (stricken areas) where power supply networks have been damaged, there are a variety of power supply needs for various electrical equipment. It is rare.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mobile power supply vehicle capable of supplying power in response to various needs at disaster sites.

In order to solve the above problems, the present invention provides a movable running body, an internal combustion engine (for example, the diesel engine 11 and the LPG engine 12 in the embodiment) and a power generator (for example, in the embodiment) provided on the running body. AC generator 16, DC generators 17A, 17B), a mobile power supply vehicle that drives the power generator by the internal combustion engine to generate power, and a power storage device that stores the power generated by the power generator ( For example, it is possible to have the large-capacity battery 13) in the embodiment, and supply the power being generated by the power generation device to the power receiving side device, or supply the power stored in the power storage device to the power receiving side device. Configured.

In the mobile power source vehicle according to the present invention, it is preferable that the power supply by the electric power generation device and the electric power stored by the power storage device can be selectively switched based on a predetermined condition.

According to the mobile power source vehicle of the present invention, the power storage device is provided to store the power generated by the power generation device, and the power stored in the power storage device can be supplied to the power receiving side device while the power generation device is generating power. Since the power can be supplied to the power receiving side device, the power being generated or the power stored in the power storage device can be supplied to the power receiving side device according to the power demand of the power receiving side device. It is possible to supply power (power supply support) to meet the various needs of

In the mobile power source vehicle according to the present invention, the power supply using the power being generated by the power generation device and the power supply using the power stored by the power storage device can be selectively switched on the basis of a predetermined condition. It is possible to appropriately supply power according to the power demand corresponding to the

1 is a side view of a mobile power supply vehicle according to an embodiment of the present invention; FIG. FIG. 2 is a conceptual diagram showing main functions of the mobile power supply car; FIG. 4 is a diagram schematically showing the configuration and action of the mobile power supply vehicle for power supply; FIG. 3 is a block diagram showing in more detail the configuration and action of the mobile power supply vehicle for power supply; FIG. 4 is a plan view schematically showing a cylinder placement portion of the mobile power supply vehicle; FIG. 4 is a block diagram for explaining a communication function between a controller of the mobile power supply vehicle and a portable battery; FIG. 3 is a block diagram for explaining a case in which power is supplied from the portable battery to an in-vehicle battery of an aerial work vehicle; FIG. 2 is a block diagram showing the configuration and operation of the power transfer device of the mobile power supply vehicle;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a mobile power supply vehicle 1 as one embodiment of the present invention. This mobile power supply vehicle 1 has a driving cab 3 in the front part of a vehicle body 2, and is a truck vehicle (a traveling body) capable of traveling by means of a pair of left and right front wheels 5F and rear wheels 5R arranged in front and rear of the vehicle body 2. equivalent). A rectangular box-shaped luggage compartment 7 is provided behind the driving cab 3 and in the rear part of the vehicle body 2, and various power supply devices are accommodated inside the luggage compartment 7. As shown in FIG.

As shown in FIG. 2, the mobile power supply vehicle 1 functionally has three systems SM1 to SM3 for power generation, power storage, and power supply, and these three systems SM1 to SM3 work in conjunction with each other. there is As a result, the mobile power supply vehicle 1 exhibits excellent effectiveness as an emergency power supply source in various situations such as disaster sites where the power supply network is damaged. The configuration and action of the mobile power supply vehicle 1 for power supply will be schematically described below with additional reference to FIG. 3 .

As shown in FIG. 3, the mobile power supply vehicle 1 has, as a plurality of internal combustion engines, a diesel engine 11 that operates using light oil as fuel, and an LPG engine 12 that operates using LPG (liquefied petroleum gas) as fuel. there is The diesel engine 11 is configured as a chassis engine that is used both for running and for power generation, and the LPG engine 12 is configured as a dedicated power generation engine that is used only for power generation.

The mobile power supply vehicle 1 is configured to be able to generate DC power according to the operation of the diesel engine 11 and to generate two types of power, AC and DC, according to the operation of the LPG engine 12 . Specifically, for example, the mobile power supply vehicle 1 is provided with a DC generator that operates by receiving power from a diesel engine 11, and an AC generator and a DC generator that operate by receiving power from an LPG engine 12. (generator not shown). The AC power generated according to the operation of the LPG engine 12 is output as AC 100V or AC 200V, for example, and can be supplied to evacuation centers, temporary offices, etc. in disaster areas. The mobile power supply vehicle 1 is equipped with a plurality of engines (the diesel engine 11 and the LPG engine 12) using different fuels as internal combustion engines used for power generation. be improved. Therefore, it is possible to reduce the possibility of power generation being disabled due to running out of fuel, and to stably generate power for a long period of time.

The mobile power supply car 1 has a large-capacity battery 13 and a plurality of portable batteries (mobile batteries) 14 as power storage devices. The large-capacity battery 13 is configured with, for example, a lithium-ion storage battery, and the diesel engine 11 and/or the LPG engine 12
is configured to store a large amount of DC power (electrical energy) generated according to the operation of the Since the mobile power source vehicle 1 is provided with the large-capacity battery 13, the generated electric power can be stored without wasting it. The power stored in the large-capacity battery 13 is, for example, converted to AC power (for example, AC100V or AC200V) via a DC/AC inverter (not shown), and is used for electrical equipment (for example, lighting equipment) at disaster sites. can be supplied to

The portable battery 14 can store part of the electric power stored in the large-capacity battery 13 . Charging of the portable battery 14 from the large-capacity battery 13 is performed via, for example, a DC/DC converter (not shown). The portable battery 14 can be taken out of the mobile power supply vehicle 1, and can be used as an emergency power supply in various places such as shelters and damaged houses.

The mobile power supply vehicle 1 is provided with a quick charger 15. - 特許庁The quick charger 15 can convert, for example, AC power generated according to the operation of the LPG engine 12 into DC power and output the DC power. Moreover, the quick charger 15 is configured to be compatible with a plurality of quick charging standards, and can quickly charge the battery of a work vehicle such as an electric vehicle 21 or an aerial work vehicle 22 .

Next, the configuration and action of the power supply of the mobile power supply vehicle 1 will be described in more detail with additional reference to FIGS. 4 to 7. FIG. Note that the white arrows shown in FIG. 4 and the like indicate the flow of electric power (electrical energy). As described above, the mobile power supply vehicle 1 has three systems SM1 to SM3 for power generation, power storage, and power supply, as shown in FIG. The mobile power supply vehicle 1 also includes a controller 50 that controls these systems SM1 to SM3, and a plurality of portable batteries 14 that serve as power supply sources (portable power sources) that can be taken out.

The power generation system SM1 includes two internal combustion engines, a diesel engine 11 and an LPG engine 12, an AC generator 16 and a DC generator 17A driven by the LPG engine 12, and a DC generator 17B driven by the diesel engine 11. Constructed as a subject. The diesel engine 11 is an internal combustion engine that uses light oil as fuel, and is configured as a chassis engine that is used both for traveling (for driving the traveling mechanism) and for generating electricity (for driving the DC generator 17B). On the other hand, the LPG engine 12 is an internal combustion engine that operates using LPG as fuel, and is used only for power generation (for driving the AC generator 16 and the DC generator 17A). By using the diesel engine 11 for driving also for power generation, the installation space for the internal combustion engine for power generation can be reduced compared to the case where an internal combustion engine dedicated to power generation is separately provided in addition to the LPG engine 12.

Diesel oil, which is fuel for the diesel engine 11 , is stored in a fuel tank 33 provided in the vehicle body 2 and supplied to the diesel engine 11 . The fuel tank 33 is provided with a remaining amount gauge (not shown) for detecting the remaining amount of light oil stored, and a remaining amount detection signal (a signal indicating the remaining amount) from this remaining amount gauge is sent to the controller 50. It is designed to be entered. The DC generator 17B is configured to operate by the output (power) of the diesel engine 11 to generate DC power. The power of the diesel engine 11 is transmitted to the DC generator 17B via the power transmission mechanism 19. As shown in FIG. The power transmission mechanism 19 is configured by, for example, a PTO (power take-off) mechanism, and can switch between a state in which the power of the diesel engine 11 is transmitted to the DC generator 17B and a state in which the power is not transmitted to the DC generator 17B. It is configured.

The power of the diesel engine 11 is, for example, the rotation speed of the flywheel provided on the output shaft of the diesel engine 11 is 1500 [rpm], and the torque acting on the flywheel is 200 [Nm], the following formula (1) (π is the circular constant).
200×1500×2π/60/1000≈31.4 [kW] (1)
In this case, the DC power generated by the DC generator 17B is about 30 [kW].

LPG, which is fuel for the LPG engine 12, is stored in a plurality of (two in this example) LPG cylinders 31A and 31B mounted on a cylinder mounting portion 8 (see FIG. 5). As shown in FIG. 5, the cylinder mounting portion 8 is formed between the cab 3 and the luggage compartment 7 by recessing the side walls 7a and 7b at the right front corner of the luggage compartment 7 inward. It is provided open to the outside air in the configured space. By placing the LPG cylinders 31A and 31B on the cylinder mounting portion 8 which is open to the outside air in this way, the LPG cylinders 31A and 31B are not affected by the temperature rise of the parts in the luggage compartment 7 . Thereby, it is possible to prevent the temperature of the LPG cylinders 31A and 31B from rising beyond the specified temperature (for example, 40° C.).

The two LPG cylinders 31A and 31B mounted on the cylinder mounting portion 8 are connected to the LPG engine 12 via a gas supply path (not shown) composed of a rubber hose or the like and a switching valve 32 (see FIG. 4). It is connected. The switching valve 32 is configured to switch between a state in which the LPG of the LPG cylinder 31A can be supplied to the LPG engine 12 and a state in which the LPG of the LPG cylinder 31B can be supplied to the LPG engine 12. In addition, the LPG cylinders 31A and 31B are placed on weighing scales (not shown) installed in the cylinder placing section 8, respectively. The weight scale is configured to measure the weight of the LPG cylinders 31A and 31B and to output to the controller 50 a weight measurement signal indicating the measured weight value. The controller 50 can estimate the remaining amount of LPG in the LPG cylinders 31A and 31B based on this weight measurement signal. If the relationship between the amount of work of the LPG engine 12 and the amount of LPG consumption is known, the amount of LPG consumption may be obtained based on that relationship, and the remaining amount of LPG may be estimated from this. For example, since the amount of work of the LPG engine 12 and the amount of power generation (power consumption) of the AC generator 16 or the DC generator 17A driven by the LPG engine 12 can be considered to be approximately equal, the amount of power generation is measured and the measured value is LPG consumption may be obtained from

The AC generator 16 is configured to operate by the power of the LPG engine 12 to generate AC power, and the DC generator 17A is operated by the power of the LPG engine 12 to generate DC power. is configured to The power of the LPG engine 12 is transmitted to the AC generator 16 and the DC generator 17A through the power transmission mechanism 18. As shown in FIG. The power transmission mechanism 18 includes, for example, a mechanism such as a clutch, gears, and belts, and transmits the power of the LPG engine 12 to both the AC generator 16 and the DC generator 17A. It is configured to switch between a state in which the power is transmitted only to the motor 16 and a state in which the power is transmitted only to the DC generator 17A.

The power of the LPG engine 12 is, for example, assuming that the rotation speed of the flywheel provided on the output shaft of the LPG engine 12 is 1500 [rpm] and the torque acting on the flywheel is 200 [Nm], the above equation (1) required by In this case, the DC power generated by the AC generator 16 and the DC power generated by the DC generator 17A are both about 30 [kW]. Note that the LPG engine 12 can rotate at a stable frequency compared to the diesel engine 11 . Therefore, by operating the AC generator 16 with the LPG engine 12 to generate AC power, it is possible to generate AC power with a stable frequency.

As shown in FIG. 4, the LPG engine 12, AC generator 16 and DC generator 17A are housed within a soundproof housing 34. As shown in FIG. Therefore, even if the LPG engine 12 operates the AC generator 16 and/or the DC generator 17A to generate power, the operation noise of the LPG engine 12, the AC generator 16 and the DC generator 17A is less likely to leak to the outside. there is Therefore, the power generation by the LPG engine 12, the AC generator 16 and the DC generator 17A is performed in a place (for example, a residential area) or at a time (for example, late at night) where quietness is required compared to the power generation by the diesel engine 11 and the DC generator 17B. It is suitable for generating power in the early morning hours).

The controller 50 estimates the remaining amount of LPG in the LPG cylinders 31A and 31B based on the weight measurement signal from the weighing scale, and controls the operation of the switching valve 32 based on the remaining amount. For example, when the switching valve 32 is set so that the LPG in the LPG cylinder 31A can be supplied to the LPG engine 12 and power is being generated, if the remaining amount of LPG in the LPG cylinder 31A decreases to a specified amount, , the switching valve 32 is switched so that the LPG in the LPG cylinder 31B can be supplied to the LPG engine 12. As a result, power generation using the LPG engine 12 can be continued for a long time.

The controller 50 controls power generation using the diesel engine 11 and power generation using the LPG engine 12 selectively according to predetermined conditions such as power demand. For example, when generating power in a place or time zone where quietness is required, power generation using the LPG engine 12 is selected, and in a situation where sustainability of power generation (continuous power generation for a long time) is required, the diesel engine 11 and Power generation using one of the LPG engines 12 with a larger remaining amount of fuel is selected. In addition, when the power demand (total value of load current supplied to each power supply target) becomes higher than a predetermined value, power generation using the diesel engine 11 and power generation using the LPG engine 12 are performed simultaneously. control what happens. In addition, the controller 50 selects and controls according to the instruction|indication, when an operator's selection instruction|indication (instruction input) is received. In this way, in the mobile power supply vehicle 1, power generation using the diesel engine 11 and power generation using the LPG engine 12 can be selected. ) can be generated appropriately.

The controller 50 controls the operation of the power transmission mechanism 18 according to power demand and the like, and can select whether to generate power by the AC generator 16 or the DC generator 17A. For example, in a situation where there is a demand for AC power but no demand for DC power, the power transmission mechanism 18 is operated so that the power of the LPG engine 12 is transmitted only to the AC generator 16, and the AC power is generated by the AC generator 16. control so that only Conversely, when there is no demand for AC power and there is demand for DC power, the power transmission mechanism 18 is operated so that the power of the LPG engine 12 is transmitted only to the DC generator 17A, and the DC power is generated by the DC generator 17A. Control so that only power generation is performed. In a situation where there is a demand for AC power and a demand for DC power, the power transmission mechanism 18 is operated so that the power of the LPG engine 12 is transmitted to both the AC generator 16 and the DC generator 17A. 16 and DC power generation by the DC generator 17A are controlled to be performed concurrently. As described above, in the mobile power supply vehicle 1, the power of one LPG engine 12 can be used to generate AC power by the AC generator 16 and DC power by the DC generator 17A. AC power and DC power can be generated. Moreover, in the mobile power supply vehicle 1, the power of the LPG engine 12 can be used to select between AC power generation by the AC generator 16 and DC power generation by the DC generator 17A. Corresponding wasteless power generation can be performed.

The controller 50 can regulate the operation of the diesel engine 11 for power generation according to the remaining amount of light oil, which is the fuel for the diesel engine 11 . For example, the controller 50 monitors the remaining amount of light oil in the fuel tank 33 based on the remaining amount detection signal from the above-described remaining amount gauge. Further, in the car navigation system mounted on the mobile power supply vehicle 1, when the next planned travel location is input and the travel distance to the planned travel location is calculated, the controller 50 determines the travel based on the calculated value. Obtain the expected fuel consumption required. Then, when there is a possibility that the remaining amount of light oil in the fuel tank 33 is less than the expected fuel consumption amount, the controller 50 stops the operation of the diesel engine 11 even if it is operating for power generation. Control. As described above, in the mobile power source vehicle 1, operation of the diesel engine 11 for power generation is restricted according to the remaining amount of fuel in the diesel engine 11, which is also used for traveling. It is possible to avoid the situation where the vehicle becomes unable to travel due to lack of fuel and cannot move to the planned destination.

As shown in FIG. 4 , the power storage system SM2 is mainly composed of a large-capacity battery 13 . The large-capacity battery 13 is configured with a lithium-ion storage battery, but may be configured with another type of storage battery (for example, a lead-acid battery). The large-capacity battery 13 stores DC power generated by the DC generator 17A driven by the LPG engine 12 and DC power generated by the DC generator 17B driven by the diesel engine 11 . Assuming that the DC power input (accumulated) to the large-capacity battery 13 is 30 [kW], the large-capacity battery 13 in the depleted state can be charged to 60 in about one hour when the capacity of the large-capacity battery 13 is 30 [kWh]. [kWh] can be fully charged in about two hours.

As shown in FIG. 4, the power supply system SM3 is mainly composed of an AC power supply 41, a quick charger 15, a DC/AC inverter 43, an AC power supply 44 and a universal charger 45. The AC power supply 41 functions as an alternative power supply for the commercial power supply, and is capable of supplying 30 [kW] of AC power with, for example, a three-phase AC 200 V power supply specification using the AC power generated by the AC generator 16. It is configured. The AC power output from the AC power supply 41 is supplied to an AC power supply target SJ1 such as a temporary office 61 installed at a disaster site such as a disaster area.

The quick charger 15 has an AC/DC converter 15a that converts the AC power generated by the AC generator 16 into DC power of a predetermined voltage (for example, 50 V). It is configured to supply the vehicle SJ2 to be charged, such as the car 22, so that these on-vehicle batteries can be rapidly charged. In addition, the quick charger 15 can charge the vehicle SJ2 to be charged according to different quick charging standards. For example, when rapidly charging the on-board battery of the electric vehicle 21, a charging method conforming to the quick charging standard (for example, CHAdeMO (registered trademark)) of the electric vehicle 21 is used, and the on-board battery of the aerial work vehicle 22 is rapidly charged. In the case of charging, a charging method conforming to the rapid charging standard for the high lift work vehicle 22 is used. In addition, the quick charger 15 has a charging plug for charging an electric vehicle and a charging plug for charging a vehicle for high altitude work, and these charging plugs can be used appropriately. As described above, the mobile power source vehicle 1 is provided with the quick charger 15, so that the onboard battery of the charging target vehicle SJ2 can be properly charged in accordance with the difference in quick charging standards. In addition, the installation space for the quick chargers can be reduced as compared with the case where a quick charger for charging an electric vehicle and a quick charger for charging a vehicle for high altitude work are provided separately.

The DC/AC inverter 43 converts DC power (for example, 9 [kW] power) stored in the large-capacity battery 13 and supplied from the large-capacity battery 13 into AC power and supplies the AC power to the AC power supply 44. It's becoming The AC power supply 44 functions as an alternative power supply to the commercial power supply, and is configured to be able to supply, for example, AC 100V AC power from the AC power supplied from the DC/AC inverter 43 . The AC power output from the AC power supply 44 is supplied, for example, to an AC power supply target SJ3 such as a lighting device 62 installed at a disaster site such as a disaster area. The DC/AC inverter 43 and the AC power supply 44 can supply appropriate AC power corresponding to the power supply level required by the AC power supply target SJ3 (for example, the allowable variation range of voltage and frequency, etc.).

Note that the AC 100 V AC power similar to that of the AC power supply 44 can also be supplied to the AC power supply target SJ3 by the AC power supply 41 described above. In that case, the power supply from the AC power supply 41 and the power supply from the AC power supply 44 are controlled by the controller 50 according to the power supply request level of the AC power supply target SJ3 and predetermined conditions (for example, the power load at the time of power supply, the large capacity battery, etc.). 13, the time slot for supplying power, the location for supplying power, etc.). For example, when the power demand level of the AC power supply target SJ3 is high (when the allowable range of frequency fluctuation is narrow), the frequency of the AC power from the AC power supply 41 fluctuates under the influence of fluctuations in the rotation speed of the LPG engine 12. Instead of power supply, power supply from an AC power supply 44 capable of supplying AC power with a stable frequency is selected. When power is supplied in a place (residential area, etc.) or at a time zone (early morning or late at night) where quietness is required, power supply from the AC power supply 44, which is excellent in quietness, is selected (power supply from the AC power supply 41 is , the engine (LPG engine 12) needs to be operated, so quietness is low compared to power supply from the AC power supply 44, which does not require such operation). In addition, when the power load is as low as a predetermined value or less, or when the amount of electricity stored in the large-capacity battery 13 is a predetermined value or more and there is a margin, power is supplied from the AC power supply 44, which is excellent in quietness, regardless of the location or time period. may be selected. As described above, in the mobile power supply car 1, the power supply from the AC power supply 41 and the power supply from the AC power supply 44 can be selectively switched according to the power supply request level of the AC power supply target SJ3 and predetermined conditions. Therefore, it is possible to supply power appropriately according to the required power level and predetermined conditions.

The general-purpose charger 45 converts DC power (eg, 24 [kW] power) stored in the large-capacity battery 13 and supplied from the large-capacity battery 13 into DC power of a predetermined voltage (eg, 100 V). A /DC converter 45a is provided, and the converted DC power is supplied to various power receiving side batteries 63 and portable batteries 14 to be charged SJ4 for charging. In addition, the general-purpose charger 45 is configured so that charging can be performed by changing charging conditions (charging control method) according to the model of the power receiving side battery 63 . The model specifies the type of the power receiving side battery 63 (lithium ion storage battery, lead storage battery, nickel metal hydride storage battery, etc.) and product specifications. time) are different. The model may be identified by the operator, and the charging control method corresponding to the model may be set in the general-purpose charger 45 . If the power receiving battery 63 has a control chip or the like (referred to as a "power receiving battery controller") that stores the model, the power receiving battery controller communicates with the universal charger 45 to identify the model. , the charging control method corresponding to the model may be automatically set. For example, in the case of models that support the CCCV (constant current constant voltage) charging method (charging profile), the current value during constant current charging, the voltage value when switching to constant voltage charging, and the terminal voltage that serves as an index to end charging It identifies the value, etc., and performs charging corresponding to the charging profile. As a result, the power receiving side battery 63 can be properly charged according to the model.

Although only one charger 45 is shown in FIG. 4, a plurality of general-purpose chargers 45 are provided, and the power-receiving-side batteries 63 are connected to the plurality of general-purpose chargers 45, respectively, and the plurality of power-receiving-side batteries 63 are charged simultaneously. You can do it. It is also possible to determine the order of priority of the plurality of power receiving side batteries 63 separately connected to each universal charger 45, select at least one power receiving side battery 63 with high priority, and charge it with priority. It's like For example, the SOC (state of charge) of each power receiving battery 63 may be identified, and the power receiving battery 63 having a higher charging rate may be given higher priority. Also, a plurality of power receiving side batteries 63 are simultaneously charged by the CCCV charging method, and if there is a battery whose charging voltage reaches a predetermined value (for example, 50 V), it is preferentially selected, and thereafter the selected power receiving side battery is charged. Only 63 may be charged until it is fully charged. The priority may be determined by the controller 50 and the controller 50 may control the operation of each universal charger 45 . By performing charging based on priority in this way, the batteries 63 on the power receiving side can be charged in descending order of priority.

The plurality of portable batteries 14 shown in FIG. 4 are configured with, for example, lithium-ion storage batteries. Each portable battery 14 can be charged with a portion of the DC power stored in the large-capacity battery 13 via a general-purpose charger 45 . The general-purpose charger 45 is configured to identify the type of the portable battery 14 when connected to the portable battery 14, and perform appropriate charging according to charging conditions (charging control method) according to the type. ing. As shown in FIG. 6, the portable battery 14 grasps its own power status (charging rate, possible output current value, etc.), and also manages information about the power status and information such as its own model. have. This battery control unit 14a acquires position information of itself (portable battery 14) using GPS (Global Positioning System), and the position information together with information such as power status and model of portable battery 14. It has a function to make a call. The controller 50 of the mobile power supply vehicle 1 receives the positional information and the like transmitted from the battery control unit 14a, and grasps the position, charging rate, and the like of the portable battery 14, thereby properly controlling the portable battery 14 brought out. can be managed to

The portable battery 14 includes a DC/AC inverter (not shown) that converts the DC power charged by the general-purpose charger 45 into an AC power supply, and can function as a portable AC power supply. The portable battery 14 also has a function of being connected to a vehicle-mounted battery of another vehicle other than the mobile power source vehicle 1 to supply power to the vehicle-mounted battery. Therefore, it is possible to supply power even to the on-vehicle battery of the vehicle located away from the mobile power source vehicle 1 .

FIG. 7 shows a state in which power is supplied from the portable battery 14 to the vehicle-mounted battery of the work vehicle (in this example, an aerial work vehicle). As shown in FIG. 7, the aerial work platform 22 that receives power from the portable battery 14 includes a vehicle-mounted battery 22a, a work device 22b (for example, an electric motor) operated by the power supplied from the vehicle-mounted battery 22a, and a work device control unit 22c that controls the operation of the work device 22b.

When the portable battery 14 is connected to the vehicle-mounted battery 22a, the work device control unit 22c receives information on the power state of the portable battery 14 (model, output current characteristics, charging rate, etc.) from the battery control unit 14a of the portable battery 14. etc.). Then, according to the power state of the portable battery 14, the required electric power of the vehicle-mounted battery 22a (the electric power required of the portable battery 14) is adjusted. Specifically, according to the output current characteristics and charging rate of the portable battery 14, the working device control unit 22c increases or decreases the operating speed of the working device 22b to adjust the required power. As a result, it is possible to avoid damage to the portable battery 14 or a power supply error due to a high load being applied to the portable battery 14 due to a power request that does not match the power state of the portable battery 14 . can.

Note that the working device control unit 22c allows power supply from the portable battery 14 to the vehicle-mounted battery 22a only when the working device 22b is not in operation, and allows power supply from the portable battery 14 to the vehicle-mounted battery 22a when the working device 22b is in operation. It may be configured to regulate the power supply to the battery 22a. As a result, power is supplied from the portable battery 14 to the in-vehicle battery 22a while the working device 22b is in operation, so that a high load is applied to the portable battery 14, which may damage the portable battery 14 or cause a power supply error. It becomes possible to avoid that In addition, when the work device 22b is not in operation, power is supplied from the portable battery 14 to the vehicle-mounted battery 22a, thereby suppressing a decrease in the charging rate of the vehicle-mounted battery 22a.

The mobile power source vehicle 1 is capable of bi-directionally transferring electric power between the large-capacity battery 13 and the vehicle-mounted battery of another vehicle. Hereinafter, this point will be described with additional reference to FIG. . As shown in FIG. 8 , the mobile power supply vehicle 1 includes a power transfer device 70 . The power transfer device 70 is configured with a bi-directional DC/DC converter 71 and transfers the power stored in the two connected batteries via the bi-directional DC/DC converter 71 between the two batteries. move in the direction The bidirectional DC/DC converter 71 has a step-up circuit and a step-down circuit, and when the rated voltages of the two connected batteries are different, the power is transferred between the two batteries according to the difference in the rated voltages. It is possible to convert the voltage at the time of switching to an appropriate value.

The power transfer device 70 not only steps down the power stored in the large-capacity battery 13 of the mobile power source vehicle 1 and transfers it to the on-board battery 22a of the aerial work vehicle 22 or the on-board battery 21a of the electric vehicle 21, The electric power stored in the on-board battery 22 a of the aerial work vehicle 22 or the on-board battery 21 a of the electric vehicle 21 can be boosted and transferred to the large-capacity battery 13 of the mobile power supply vehicle 1 . In addition, the electric power transfer device 70 boosts the electric power stored in the onboard battery 22a of the high lift work vehicle 22 and transfers it to the onboard battery 21a of the electric vehicle 21. It is also possible to step down the electric power and transfer it to the vehicle-mounted battery 22 a of the aerial work vehicle 22 . By providing such a power transfer device 70, the power stored in each battery 13, 21a, 22a of the mobile power supply vehicle 1, the electric vehicle 21, and the aerial work platform 22 can be transferred to the battery 13, 21a, 22a It is possible to appropriately distribute the electric power according to the charging rate, etc., and to make effective use of the electric power comprehensively.

According to the mobile power supply vehicle 1 configured as described above, it is possible to supply electric power in response to various needs at the disaster site.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and can be modified as appropriate. For example, the mobile power supply vehicle 1 of the above embodiment includes two internal combustion engines, a diesel engine 11 and an LPG engine 12, but is not limited to this. Three or more internal combustion engines may be provided, and a generator corresponding to each internal combustion engine may be provided. A gasoline engine or a hydrogen engine can also be used as the internal combustion engine used for power generation.

In the above embodiment, a part of the electric power stored in the large-capacity battery 13 can be taken out of the vehicle by the portable battery 14, but it is not limited to this. A DC/AC inverter connected to the large-capacity battery 13 by an electric cable may be configured to be portable, and this DC/AC inverter may be taken out within the length of the electric cable and used as an AC power supply. In addition, a part of the power stored in the large-capacity battery 13 is transferred to the on-board battery of the electric vehicle, the electric vehicle is moved to a narrow area where the mobile power source vehicle 1 cannot enter, and the electric power is supplied from the on-board battery of the electric vehicle. may be supplied.

1 mobile power source vehicle 2 vehicle body 7 luggage compartment 8 cylinder placement unit 11 diesel engine 12 LPG engine 13 large capacity battery 14 portable battery 15 quick charger 16 AC generator 17A, 17B DC generator 21 electric vehicle 22 high place work Vehicle 50 Controller 70 Power transfer device

Claims (2)

A mobile power supply vehicle having a movable body, an internal combustion engine and a power generation device provided on the body, wherein the power generation device is driven by the internal combustion engine to generate power,
Having a power storage device that stores the power generated by the power generation device,
1. A mobile power supply vehicle, characterized in that it is configured to be capable of supplying power being generated by said power generation device to a device on the power receiving side, and supplying power stored by said power storage device to the device on the power receiving side. 2. The mobile type according to claim 1, wherein power supply by said power generation device and power supply by said power storage device can be selectively switched based on a predetermined condition. power car.

Images