JP2015210257A - Vehicle performance test system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle performance test system which effectively utilizes regenerative electric power generated in a chassis dynamometer 10 by converting the regenerative electric power to an energy source different from electric power.SOLUTION: A vehicle performance test system 100 testing a performance of a vehicle or a part of the vehicle comprises: a chassis dynamometer 10 which is connected with the vehicle or the part of the vehicle to become an electric motor or an electric generator according to a test operation status; a power supply unit 20 which supplies the chassis dynamometer 10 with electric power when the chassis dynamometer 10 works as the electric motor; an electricity storage unit 30 which stores regenerative electric power generated in the chassis dynamometer 10 when the chassis dynamometer 10 works as the electric generator; and a gas generation unit 50 which is connected with the electricity storage unit 30 in which the regenerative electric power stored in the electricity storage unit 30 is supplied thereto, and generates a prescribed gas by use of the regenerative electric power.

Description

  The present invention relates to a vehicle performance test system for testing the performance of a vehicle and a part thereof.

  As this type of vehicle performance test system, there is one configured to connect a dynamometer as a driving / absorbing device to a vehicle or a part thereof (for example, an engine or a transmission) and test its performance.

  During the test operation, when the above-described dynamometer functions as an absorption device by acting as a generator, regenerative power is generated from the dynamometer.

  Therefore, the system described in Patent Document 1 is configured to connect a capacitor to a dynamometer and store the regenerative power generated from the dynamometer in the capacitor when the dynamometer works as a generator. .

JP 2008-241371 A

  The present invention is intended to utilize the above-described regenerative power more effectively.

  That is, the vehicle performance test system according to the present invention is a vehicle performance test system for testing the performance of a vehicle or a part thereof, and is connected to the vehicle or a part thereof, and an electric motor or a generator according to a test operation state. A driving / absorbing device, a power supply unit for supplying power to the driving / absorbing device when the driving / absorbing device functions as an electric motor, and a driving / absorbing device when the driving / absorbing device functions as a generator. A power storage unit that stores regenerative power generated in the absorption device, and a gas generation unit that is connected to the power storage unit, is supplied with the regenerative power stored in the power storage unit, and generates a predetermined gas using the regenerative power It is characterized by comprising.

In such a vehicle performance test system, the gas generating unit generates gas using regenerative power, so that regenerative power generated by the driving / absorbing device by using this gas as an energy source different from power. Can be used effectively.
In addition, when the regenerative power is stored in the power storage unit as power, the amount of power storage decreases with the passage of time, but the regenerative power is converted into an energy source called gas different from power as in the present invention. Thus, the energy source can be stored without decreasing with time, and the regenerative power generated by the driving / absorbing device can be utilized more effectively.
Furthermore, in order to store the regenerative power in the power storage unit without changing the power, a battery with a large capacity is required, which increases the equipment cost. However, as in the present invention, the energy of the regenerative power is a gas different from the power. By converting to a source, the cost of saving an energy source can be reduced.

It is preferable to further include a gas storage unit that stores the gas generated by the gas generation unit so that the gas stored in the gas storage unit can be used as an energy source.
If this is the case, as described above, the gas does not decrease with time, the gas storage unit can store the gas generated by the gas generation unit without loss, and is supplied to the gas generation unit. Regenerative power can be used without waste.

As a specific embodiment for converting the regenerative power into another energy source and using it, the gas generation unit generates hydrogen using the regenerative power stored in the power storage unit. preferable.
If this is the case, hydrogen generated by the gas generation unit can be supplied to an energy source such as a fuel cell vehicle, and regenerative power can be used effectively.

  According to the present invention configured as described above, the regenerative power generated in the driving / absorbing device can be effectively utilized by converting the regenerative power into an energy source different from the power and using it.

The figure which shows typically the vehicle performance test system of this embodiment. The figure which shows typically the vehicle performance test system of deformation | transformation embodiment. The figure which shows typically the vehicle performance test system of deformation | transformation embodiment. The figure which shows typically the vehicle performance test system of deformation | transformation embodiment.

  An embodiment of a vehicle performance test system according to the present invention will be described below with reference to the drawings.

  A vehicle performance test system 100 according to the present embodiment tests, for example, the performance of a four-wheel drive vehicle V, and a chassis dynamometer that is a drive / absorption device connected to the vehicle V as shown in FIG. 10, a power supply unit 20 that supplies power to the chassis dynamometer 10, and a power storage unit 30 that stores regenerative power generated by the chassis dynamometer 10.

The chassis dynamometer 10 performs a test operation of the vehicle V. More specifically, the chassis dynamometer 10 functions as a drive device that drives the vehicle V by acting as an electric motor according to the test operation state, and functions as a generator. This functions as an absorption device that absorbs the power of the vehicle V.
Specifically, the chassis dynamometer 10 is connected to the rotating drum 11 on which the wheel of the vehicle V is mounted and which gives a driving force to the wheel or absorbs the power of the wheel via the contact portion. The electric motor 12 is an AC motor that rotates the rotary drum 11. As can be seen from this configuration, the chassis dynamometer 10 of the present embodiment is connected to the vehicle V via a contact portion between the wheel of the vehicle V and the rotary drum 11.

  The power supply unit 20 supplies power to the chassis dynamometer 10 when the above-described chassis dynamometer 10 operates as an electric motor. Specifically, the power supply unit 20 includes an AC power supply 21 and a transformer 22 connected in series. , An AC / DC converter 23 (hereinafter also referred to as a converter 23) and a DC / AC converter 24 (hereinafter also referred to as an inverter 24), and the electric motor 12 connected to the inverter 24 has an AC of a desired frequency. It is comprised so that a voltage may be applied.

The power storage unit 30 stores regenerative power generated in the chassis dynamometer 10 when the chassis dynamometer 10 described above functions as a generator, and specifically includes a battery (not shown). The power storage unit 30 may have a large-capacity capacitor instead of the battery.
In more detail, the power storage unit 30 is connected between the converter 23 and the inverter 24 described above via a wiring such as a DC bus, for example. When the chassis dynamometer 10 functions as a generator, the electric motor 12 The generated regenerative power is converted into a DC voltage by the inverter 24 and stored in the power storage unit 30 via the DC bus.
Note that the power storage unit 30 of the present embodiment may further include a charging state detection unit (not shown) that detects the charging state of the battery. The charge state detection unit stops power supply to the battery when it detects full charge of the battery. Thereby, the overcharge to a battery is prevented.

  And the vehicle performance test system 100 of this embodiment is connected to the electrical storage unit 30, supplied with regenerative power stored in the electrical storage unit 30, and generates gas using the regenerative power to generate a predetermined gas. Part 50.

The gas generation unit 50 is connected to the power storage unit 30 via, for example, a power control unit 40 having an inverter or the like. When regenerative power is supplied from the power storage unit 30, a predetermined voltage is applied to perform an electrochemical reaction. To generate a predetermined gas.
The power control unit 40 converts the regenerative power stored in the power storage unit 30 into a predetermined voltage and supplies the regenerative power to the gas generation unit 50, and based on the storage amount of the gas storage unit 60 described later, the gas generation unit The power supplied to 50 is controlled.

  The gas generation unit 50 of the present embodiment generates hydrogen by electrolyzing a liquid such as water or seawater. Specifically, the gas generation unit 50 includes a tank that stores a liquid such as water or seawater, and a tank. An anode and a cathode are provided, and by applying a predetermined voltage to these anode and cathode, liquid such as water or seawater is electrolyzed to generate hydrogen at the cathode.

  The gas generating unit 50 configured in this way is configured to send the generated gas (in this embodiment, hydrogen) to a gas storage unit 60 to be described later via a pipe, for example.

The gas storage unit 60 described above is connected to the gas generation unit 50 through, for example, a pipe, and in this embodiment, stores the hydrogen sent from the gas generation unit 50 through the pipe. More specifically, the gas storage unit 60 is configured to store hydrogen while maintaining a state such as temperature and pressure in a predetermined state.
Note that the gas storage unit 60 of the present embodiment uses hydrogen sent from the gas generation unit 50 as fuel cell vehicle (FCV: Fuel Cell Vehicle) using hydrogen as an energy source, for example, via piping or the like. It is configured so that it can be supplied to the hydrogen station to be used.

According to the vehicle performance test system 100 according to the present embodiment configured as described above, the gas generation unit 50 generates hydrogen using the regenerative power stored by the power storage unit 30. Therefore, the regenerative power is referred to as hydrogen. Can be converted to a different energy source and supplied to, for example, a fuel cell vehicle using hydrogen as an energy source, and regenerative power can be used effectively.
Moreover, the hydrogen stored in the gas storage unit 60 does not decrease with time, but can be stored for a long period of time, and the regenerative power generated by the chassis dynamometer 10 is more effectively utilized. be able to.

  Moreover, since the gas storage part 60 is connected to the gas production | generation part 50, for example via piping, and stores the gas sent via this piping, the gas produced | generated by the gas production | generation part 50 is stored without loss. The regenerative power supplied to the gas generation unit 50 can be utilized without waste.

  The present invention is not limited to the above embodiment.

  For example, in the above-described embodiment, the gas generation unit 50 generates hydrogen using the regenerative power stored in the power storage unit 30. However, the gas generation unit 50 is an anode by electrolyzing a liquid such as water or seawater. It may be one that generates oxygen, or one that generates a gas other than oxygen or hydrogen by other electrochemical reaction.

  Further, the gas generation unit 50 may convert the regenerative power supplied from the power storage unit 30 into heat and generate hydrogen using this heat.

  Furthermore, although the gas storage part 60 of the said embodiment stores hydrogen produced | generated by the gas production | generation part 50, for example, it stores several types of gas, such as storing hydrogen and oxygen produced | generated by electrolysis May be stored.

  The power storage unit 30 of the embodiment is connected between the converter 23 and the inverter 24 in the power supply unit 20, but the place to be connected is not limited. For example, the electric motor 12 may be provided with a converter or the like. The regenerative power generated by the electric motor 12 may be supplied through the connection.

  Furthermore, as shown in FIG. 2, the power supply unit 20 may be configured to provide a capacitor 25 between the converter 23 and the inverter 24 so that the voltage can be smoothed.

  Although the electric motor 12 of the embodiment is an AC motor, it may be a DC motor. In this case, the inverter 24 included in the power supply unit 20 of the embodiment is not necessary.

  In the above embodiment, the regenerative power stored in the power storage unit 30 is supplied to the gas generation unit 50. However, as shown in FIG. 3, the regenerative power generated in the chassis dynamometer 10 is temporarily stored. Alternatively, the gas generator 50 may be configured to supply the gas without being stored. In this case, the power storage unit 30 of the above embodiment is not necessary.

  Further, the drive / absorption device of the above embodiment is the chassis dynamometer 10, but as shown in the upper and middle stages of FIG. 4, a powertrain test for testing the performance of a powertrain having an engine, a transmission, a differential gear, and the like. As shown in the lower part of FIG. 4, the system may be an engine dynamometer that tests engine performance.

  In addition, the vehicle performance test system 100 of the above embodiment tests the performance of the four-wheel drive vehicle V, but may test the performance of the two-wheel drive vehicle V.

  The vehicle performance test system 100 does not necessarily include the power control unit 40, the gas generation unit 50, and the gas storage unit 60, and the electric power provided outside the power storage unit 30 included in the vehicle performance test system 100. The control part, the gas generation part, the gas storage part, etc. may be connected.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Vehicle performance test system 10 ... Chassis dynamometer 12 ... Electric motor 20 ... Electric power supply part 30 ... Power storage part 50 ... Gas generation part 60 ... Gas storage part

Claims (3)

A vehicle performance test system for testing the performance of a vehicle or a part thereof,
A driving / absorbing device connected to the vehicle or a part thereof and serving as an electric motor or a generator according to a test operation state;
A power supply unit for supplying power to the drive / absorption device when the drive / absorption device functions as an electric motor;
A power storage unit that stores regenerative power generated in the drive / absorption device when the drive / absorption device functions as a generator;
A vehicle performance test system comprising: a gas generation unit that is connected to the power storage unit and is supplied with regenerative power stored in the power storage unit and generates a predetermined gas using the regenerative power. . A gas storage unit for storing the gas generated by the gas generation unit;
The vehicle performance test system according to claim 1, wherein the gas stored in the gas storage unit is configured to be used as an energy source.   The vehicle performance test system according to claim 1, wherein the gas generation unit generates hydrogen using regenerative power stored in the power storage unit.