CN211149274U - Test equipment of fuel cell commercial vehicle electric drive system - Google Patents
Test equipment of fuel cell commercial vehicle electric drive system Download PDFInfo
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- CN211149274U CN211149274U CN202020124764.2U CN202020124764U CN211149274U CN 211149274 U CN211149274 U CN 211149274U CN 202020124764 U CN202020124764 U CN 202020124764U CN 211149274 U CN211149274 U CN 211149274U
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Abstract
The utility model discloses a test device of an electric drive system of a fuel cell commercial vehicle, which comprises a fuel cell voltage supply unit, a distribution box, a power cell, a motor controller, a motor, a dynamometer and a power analyzer; the output end of the fuel cell voltage supply unit is flexibly connected with a distribution box, the distribution box is respectively flexibly connected with a motor controller and a power cell, the motor controller is flexibly connected with a motor, and the motor is mechanically connected with a dynamometer through a transmission shaft and a flange plate; the power analyzer is respectively connected with a front-end direct current circuit and a rear-end alternating current circuit of the motor controller. The utility model has the advantages of easy and simple to handle, maintenance cost low, safe, reliable and stability is strong, improved work efficiency.
Description
Technical Field
The utility model relates to a fuel cell commercial car electricity drives test equipment of system belongs to the new forms of energy vehicle electricity and drives system test technical field.
Background
The development of the automobile industry promotes the progress of the human society, makes great contribution to the development of the modern society and the economic growth, brings more and more pressure to the natural environment while bringing convenience and comfort to the life of people, and the deterioration of the natural ecology is gradually aggravated. For example, the crude oil quantity is increasingly exploited, and the shortage of natural resources is increasingly serious; the global warming caused by the massive emission of automobile exhaust is becoming serious day by day, etc. Therefore, in response to the green environmental protection concept, new energy electric vehicles gradually get into the view of the public and are more and more widely concerned, accepted and applied.
The motor driving system plays an important role in the whole vehicle, and the performance of the motor driving system actually determines the performance of the whole vehicle, including driving performance, power performance, driving range and the like, so that the new energy electric driving system testing technology is very important, and the technology of simulating the discharge output characteristic of a real fuel cell by using a battery simulator is particularly critical in the aspects of safety, reliability, stability and the like of the system. However, through the research and the discovery of the prior art documents, no relevant documents related to the technical field exist at present.
The actual fuel cell of the new energy electric automobile needs to be provided with a corresponding hydrogen tank, the capacity is large, the volume is large, the safety factor is low, the fuel cell can explode or catch fire easily when meeting open fire or other accidents, the fuel cell is very dangerous, and the fuel cell cannot enter a laboratory according to the regulations, so that a set of complete electric drive test equipment which is newly built for the qualification admission of the fuel cell automobile is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a fuel cell commercial car drives test equipment of system electrically.
The utility model provides a technical scheme that its technical problem adopted is:
the embodiment of the utility model provides a test equipment of fuel cell commercial car electricity drive system, including fuel cell voltage supply unit, block terminal, power battery, motor controller, motor, dynamometer machine and power analyzer; the output end of the fuel cell voltage supply unit is flexibly connected with a distribution box, the distribution box is respectively flexibly connected with a motor controller and a power cell, the motor controller is flexibly connected with a motor, and the motor is mechanically connected with a dynamometer through a transmission shaft and a flange plate; the power analyzer is respectively connected with a front-end direct current circuit and a rear-end alternating current circuit of the motor controller.
As a possible implementation manner of this embodiment, the fuel cell voltage supply unit includes a cell simulator and a DCDC, the cell simulator is flexibly connected to the DCDC, and the DCDC is flexibly connected to the distribution box.
As a possible implementation manner of this embodiment, the dynamometer includes a dynamometer motor, a frequency converter, and a dynamometer control unit, the motor is mechanically connected to the dynamometer motor through a transmission shaft and a flange, the dynamometer motor is flexibly connected to the frequency converter, and the frequency converter is flexibly connected to the dynamometer control unit.
As a possible implementation manner of this embodiment, the distribution box includes a high-voltage large current distribution unit, and the high-voltage large current distribution unit is flexibly connected with the fuel cell voltage supply unit, the power battery and the motor controller respectively.
As one possible implementation manner of this embodiment, the test apparatus further includes a cooling system that performs a cooling process on the fuel cell voltage supply unit, the motor controller, and the motor.
The utility model discloses technical scheme beneficial effect that can have as follows:
the technical scheme of the embodiment of the utility model utilizes the battery simulator to replace the fuel battery, and simulates the discharge output characteristics of various real fuel batteries; the whole line of system is clear, is convenient for verify test and failure analysis to the electricity drives the system part and demolishs easily, can carry out corresponding change according to different motorcycle type demands or configuration, can simulate all kinds of whole car operating modes, tests different motorcycle types, has advantages such as easy and simple to handle, maintenance cost low, safe, reliable and stability is strong, has improved work efficiency.
The utility model discloses utilize the output characteristic that the battery simulator can replace fuel cell, provide the energy for a whole set of electric drive system test equipment to fully embodied fuel cell's output performance, had the security height, it is small, convenient operation's characteristics, a whole set of system installation pencil is clear, the dismouting replacement of being convenient for, the maintenance cost is low.
Description of the drawings:
fig. 1 is a block diagram illustrating a test setup of a fuel cell commercial vehicle electrical drive system according to an exemplary embodiment.
Detailed Description
The invention will be further explained with reference to the following embodiments and drawings:
in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.
Fig. 1 is a block diagram illustrating a test setup of a fuel cell commercial vehicle electrical drive system according to an exemplary embodiment. As shown in fig. 1, an embodiment of the present invention provides a testing apparatus for an electric driving system of a fuel cell commercial vehicle, which includes a fuel cell voltage supply unit, a distribution box, a power cell, a motor controller, a motor, a dynamometer, and a power analyzer; the output end of the fuel cell voltage supply unit is flexibly connected with a distribution box, the distribution box is respectively flexibly connected with a motor controller and a power cell, the motor controller is flexibly connected with a motor, and the motor is mechanically connected with a dynamometer through a transmission shaft and a flange plate; the power analyzer is respectively connected with a front-end direct current circuit and a rear-end alternating current circuit of the motor controller.
As a possible implementation manner of this embodiment, the fuel cell voltage supply unit includes a cell simulator and a DCDC, the cell simulator is flexibly connected to the DCDC, and the DCDC is flexibly connected to the distribution box.
As a possible implementation manner of this embodiment, the dynamometer includes a dynamometer motor, a frequency converter, and a dynamometer control unit, the motor is mechanically connected to the dynamometer motor through a transmission shaft and a flange, the dynamometer motor is flexibly connected to the frequency converter, and the frequency converter is flexibly connected to the dynamometer control unit.
As a possible implementation manner of this embodiment, the distribution box includes a high-voltage large current distribution unit, and the high-voltage large current distribution unit is flexibly connected with the fuel cell voltage supply unit, the power battery and the motor controller respectively.
As one possible implementation manner of this embodiment, the test apparatus further includes a cooling system that performs a cooling process on the fuel cell voltage supply unit, the motor controller, and the motor. The battery simulator has the function of replacing a fuel battery, simulating the discharge output characteristic of the real fuel battery and continuously supplying power for the new energy electric drive system.
The DCDC has a function of converting the output voltage of the fuel cell and stabilizing the output voltage of the fuel cell.
The power distribution box has the function of a high-voltage electricity high-current distribution unit for distributing high-voltage electricity, and when the power battery is electrified, the high-voltage electricity firstly enters the power distribution box and then is distributed to the motor controller.
The power battery has the functions of receiving and storing high-voltage direct current provided by a vehicle-mounted charger, a generator, a braking energy recovery device or an external charging device and providing high-voltage direct current for the new energy electric vehicle.
The motor controller has the function that the motor controller controls the motor to work according to the set direction, speed, angle and response time through active work.
The motor has the function that the dynamometer sends a torque command to the motor through CAN communication according to the time and the torque in the data table, and the motor controls the torque of the output motor through the command.
The frequency converter is a special frequency converter for the dynamometer, and has the function of converting commercial power three-phase alternating current into alternating current with adjustable voltage and frequency through rectification and inversion for controlling a motor of the dynamometer.
The dynamometer has the functions that the dynamometer control unit carries out motor load data simulation calculation analysis and derives data, then the data is led into the dynamometer, and finally the dynamometer controls and outputs the rotating speed of the dynamometer according to the time and the rotating speed in the data table.
The dynamometer control unit has the function of simulating the change of the system load of the driving motor based on the existing whole vehicle simulation model and the set operation condition. The simulation system calculates continuous data of torque, rotating speed, power and the like of the driving motor system under the conditions of shutdown, enabling, driving and braking energy recovery under the specified step length of the time axis, and the data is used as the motor load of the driving motor system simulation system and is used for truly reflecting the running state of the driving motor system under different simulated road environments and different simulated whole vehicle working conditions.
The power analyzer has the function of observing the parameter change of the direct current at the front end and the alternating current at the rear end of the motor controller, such as the curve change condition of the parameters of current, voltage, power and the like.
The cooling system functions to maintain the electric drive system within a suitable temperature range under all operating conditions.
The utility model uses the battery simulator to replace the fuel battery, which can verify and simulate the discharge output characteristics of various real fuel batteries; the system can be replaced correspondingly according to the requirements or the configuration of different vehicle types, simulate various whole vehicle working conditions and test different vehicle types; the simulated road environment test result under different vehicle working conditions is closer to the real road condition; and the control strategy of the whole vehicle can be greatly optimized, and the working efficiency is improved.
The foregoing is only a preferred embodiment of the present invention, and those skilled in the art can make several improvements and decorations without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (5)
1. A test device of an electric drive system of a fuel cell commercial vehicle is characterized by comprising a fuel cell voltage supply unit, a distribution box, a power cell, a motor controller, a motor, a dynamometer and a power analyzer; the output end of the fuel cell voltage supply unit is flexibly connected with a distribution box, the distribution box is respectively flexibly connected with a motor controller and a power cell, the motor controller is flexibly connected with a motor, and the motor is mechanically connected with a dynamometer through a transmission shaft and a flange plate; the power analyzer is respectively connected with a front-end direct current circuit and a rear-end alternating current circuit of the motor controller.
2. The testing apparatus of the electric drive system of a fuel cell commercial vehicle as set forth in claim 1, wherein said fuel cell voltage supply unit includes a cell simulator and a DCDC, the cell simulator being flexibly connected to the DCDC, the DCDC being flexibly connected to the distribution box.
3. The apparatus of claim 1, wherein the dynamometer includes a dynamometer motor, a frequency converter, and a dynamometer control unit, the motor is mechanically connected to the dynamometer motor through a transmission shaft and a flange, the dynamometer motor is flexibly connected to the frequency converter, and the frequency converter is flexibly connected to the dynamometer control unit.
4. The testing apparatus of the electric drive system of the fuel cell commercial vehicle as set forth in claim 1, wherein the distribution box includes a high voltage and high current distribution unit flexibly connected to the fuel cell voltage supply unit, the power cell and the motor controller, respectively.
5. The testing apparatus of the electric drive system of the fuel cell commercial vehicle according to any one of claims 1 to 4, further comprising a cooling system for cooling the fuel cell voltage supply unit, the motor controller and the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020124764.2U CN211149274U (en) | 2020-01-19 | 2020-01-19 | Test equipment of fuel cell commercial vehicle electric drive system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020124764.2U CN211149274U (en) | 2020-01-19 | 2020-01-19 | Test equipment of fuel cell commercial vehicle electric drive system |
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| CN211149274U true CN211149274U (en) | 2020-07-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084588A (en) * | 2022-05-31 | 2022-09-20 | 安徽明天氢能科技股份有限公司 | Multifunctional split type fuel cell test system |
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- 2020-01-19 CN CN202020124764.2U patent/CN211149274U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084588A (en) * | 2022-05-31 | 2022-09-20 | 安徽明天氢能科技股份有限公司 | Multifunctional split type fuel cell test system |
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