CN220064683U - Test bench device based on three-motor electric drive system - Google Patents
Test bench device based on three-motor electric drive system Download PDFInfo
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- CN220064683U CN220064683U CN202320014202.6U CN202320014202U CN220064683U CN 220064683 U CN220064683 U CN 220064683U CN 202320014202 U CN202320014202 U CN 202320014202U CN 220064683 U CN220064683 U CN 220064683U
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Abstract
The utility model provides a test bench device based on a three-motor electric drive system, which relates to the technical field of test benches and comprises a support base, a drive motor, an ISG motor, a wheel motor, a multi-gear gearbox and an electric dynamometer, wherein the support base is connected with the drive motor; the ISG motor input and output end is connected with the output end of the driving motor, and the wheel motor is used for simulating a motor arranged on the wheel to independently drive the wheel; the input end of the multi-gear gearbox is connected with the output end of the ISG motor, and the output end of the multi-gear gearbox is connected with the input end of the wheel motor; the electric power dynamometer is connected with the output end of the wheel motor and used for measuring the torque of the wheel motor, and the driving motor, the ISG motor, the wheel motor, the multi-gear gearbox and the electric power dynamometer are all arranged on the supporting base and controlled by an external main control console. According to the technical scheme, the test bench device is reasonable in design, and because the test bench device comprises the driving motor, the ISG motor and the wheel rim motor, corresponding bench performance tests of single motor, double motors, three motors and a hybrid electric vehicle can be realized through the three motors.
Description
Technical Field
The utility model relates to the technical field of test bed, in particular to a test bed device based on a three-motor electric drive system.
Background
The rack is the test bench, but the test benches of different devices need different technical support systems, and the rack is the most complex and expensive one. The prior bench mainly adopts a modularized design and mainly comprises an energy supply module, a driving module, an inertia simulation module, a load simulation module, a data acquisition module and a bench main control module. The bench simulation test shortens the gap between the pure software simulation and the actual situation, and greatly shortens the period of the real vehicle test; the bench can realize tests on automobiles of different structural types. The prior patent discloses the following technology:
patent publication number CN209356209U, entitled "test bench for heavy duty car hybrid system testing", discloses the following: the utility model provides a test bench for heavy-duty car hybrid power system test, includes the test bench, the lower extreme of test bench is equipped with a plurality of walking wheels, two installation bases of upper end fixedly connected with of test bench, be equipped with recording device on the installation base, the upper end of test bench is equipped with operation module, be equipped with the inner shell in the test bench, be equipped with the driving system module in the inner shell, equal fixedly connected with guiding mechanism on the relative lateral wall of inner shell, the lower extreme fixedly connected with buffer board of inner shell, be equipped with two buffer gear on the buffer board. The utility model has reasonable structural design and has the advantages of slowing down equipment shake and facilitating note taking.
However, the driving motor of the test bed is in a single motor driving mode, and when the driving motor is damaged, the power of the driving motor is interrupted, so that the technical problem of working efficiency is affected.
Disclosure of Invention
The purpose of the utility model is that: in order to solve the technical problem that the power of a driving motor is interrupted in the driving of a test bed, the utility model provides a test bed device based on a three-motor electric driving system.
The technical scheme provided by the utility model for realizing the purpose is as follows:
a test bench device based on a three-motor electric drive system comprises a support base, a drive motor, an ISG motor, a wheel motor, a multi-gear gearbox and an electric dynamometer; the ISG motor input and output end is connected with the output end of the driving motor, and the wheel motor is used for simulating a motor arranged on the wheel to independently drive the wheel; the input end of the multi-gear gearbox is connected with the output end of the ISG motor, and the output end of the multi-gear gearbox is connected with the input end of the wheel motor; the electric power dynamometer is connected with the output end of the wheel motor and is used for measuring the torque of the wheel motor, and the electric power dynamometer is used for measuring the torque of the wheel motor according to the principle that the action torque and the reaction torque are equal in magnitude and opposite in direction.
The driving motor, the ISG motor, the wheel motor, the multi-gear gearbox and the electric dynamometer are all arranged on the supporting base and are controlled by an external main control console.
Specifically, when the external simulation engine case is connected to the bench test device, the output of the driving motor is equivalent to the engine output through the control of the main control console, and the test driver can control the accelerator pedal on the simulation engine case and perform corresponding simulation driving control by matching with the brake pedal. In this case, the gantry device corresponds to a hybrid system based on an ISG motor, which is integrated with an engine output shaft.
In addition, when the external simulation engine case is not connected, the bench test is a pure electric test. When the pure electric test is performed, the electric motor can be divided into a double-motor pure electric driving system and a three-motor pure electric driving system according to whether the ISG motor idles or not. When the ISG motor idles, the test bench is a double-motor pure electric vehicle test bench. And the test of the whole vehicle performance of the double-motor pure electric vehicle is realized under the set control strategy by writing a control strategy of the main control console software. Meanwhile, due to the adoption of the multi-gear planetary gear transmission, the bench can conduct corresponding gear shifting control strategy research. After the ISG motor is electrified, the driving system of the test bed is changed into a three-motor driving system, the ISG motor is changed into an auxiliary motor at the moment, and the efficiency of the main driving motor can be further improved by matching the three motors at the moment, so that the whole vehicle efficiency is improved. The bench test can be used for testing the corresponding three-motor control strategy.
In one embodiment, the device further comprises an upshift box, wherein the upshift box is arranged on a supporting base between the wheel side motor and the multi-gear gearbox, the output end of the upshift box is connected with the input end of the wheel side motor, and the input end of the upshift box is connected with the output end of the multi-gear gearbox.
In one embodiment, the input end and the output end of the wheel motor are both mounted on the support base through a bracket with a bearing seat, and the input end and the output end of the wheel motor are located on the same horizontal line.
Specifically, it is a preferred mode that the input end and the output end of the wheel motor are located on the same horizontal line, and the input end and the output end of the wheel motor may not be located on the same horizontal line, so long as the design requirement is met.
In one embodiment, a second rotational speed sensor is mounted on the input of the upshift gearbox or the output of the multi-speed gearbox, the second rotational speed sensor being electrically connected to an external console.
Specifically, the second rotation speed sensor is used for detecting the rotation speed of the output end of the multi-gear gearbox, and can transmit detected rotation speed information to the main control console in real time, so that the main control console can conveniently control the rotation speed of the output end of the multi-gear gearbox.
In one embodiment, the input and output ends of the lift box are not on the same horizontal line, and the input end position of the lift box is lower than the output end position of the lift box.
Specifically, the structure is a preferable design mode, is convenient to process and manufacture, and in addition, the input end and the output end of the speed increasing box can be on the same horizontal line, so that the design requirement is met.
In one embodiment, the drive motor, ISG motor and electric dynamometer are all mounted on the support base by removable mounts.
Particularly, the detachable mounting seat is convenient for mounting the driving motor, the ISG motor and the electric dynamometer during use, and is also convenient for dismounting and replacing the driving motor, the ISG motor and the electric dynamometer under the condition of damage.
In one embodiment, a first rotational speed sensor is provided on an input of the multi-speed gearbox or an output of the ISG motor, the first rotational speed sensor being electrically connected to an external console. The first rotation speed sensor is used for detecting the rotation speed of the input end of the multi-gear gearbox, and can transmit detected rotation speed information to the main control desk in real time, so that the main control desk is convenient for controlling the rotation speed of the input end of the multi-gear gearbox.
In one embodiment, the multi-speed gearbox is a three-speed planetary gearbox comprising three rows of independently operable planetary gear mechanisms and a transmission controller, each row of planetary gear mechanisms being controlled by the transmission controller, the transmission controller being electrically connected to an external console.
In particular, a three-speed planetary gearbox is a preferred form of multi-speed gearbox, and most of existing test stands adopt a two-speed planetary gearbox, and the three-speed planetary gearbox has more choices compared with the existing two-speed planetary gearbox. The three rows of planetary gear mechanisms in the three-gear planetary gear transmission can work independently and do not interfere with each other; the three rows of planetary gear mechanisms are respectively a front row planetary gear mechanism, a middle row planetary gear mechanism and a rear row planetary gear mechanism.
In one embodiment, the input end and the output end of the three-gear planetary gear transmission are both arranged on the supporting base through a bracket with a bearing seat, the input end and the output end of the three-gear planetary gear transmission are horizontally arranged, and the input end and the output end of the three-gear planetary gear transmission are not on the same horizontal line.
In one embodiment, the support base is an integrally formed mounting plate or a mounting plate formed by splicing a plurality of detachable flat plates.
Specifically, the support base can be an integrally formed mounting plate under the condition that the space is large enough; under the condition of limited space position, the support base can firstly select a mounting plate formed by splicing a plurality of detachable flat plates, the number of the required flat plates can be determined according to the requirement, and the splicing mode can be spliced or buckled.
The above-described features may be combined in various suitable ways or replaced by equivalent features as long as the object of the present utility model can be achieved.
Compared with the prior art, the test bench device based on the three-motor electric drive system has the following beneficial effects:
the test bench device provided by the utility model has a simple structure and a reasonable design, and as the test bench device comprises the driving motor, the ISG motor and the wheel motor, the corresponding bench performance test (bench test) of the single motor, the double motor, the three motors and the hybrid electric vehicle can be realized through the three motors. Specifically, when an external simulated engine case is connected to the bench test device of the present utility model, the bench test device at this time corresponds to a hybrid system based on an ISG motor, which is integrated with an engine output shaft. When the external simulated engine case is not connected, the bench test performed on the test bench device is a pure electric bench test. At this time, the electric motor can be divided into a dual-motor pure electric driving system and a three-motor pure electric driving system according to whether the ISG motor idles or not. The arrangement of the three motors can ensure that the power output is not interrupted.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic structural view of the present utility model.
In the drawings, like parts are designated with like reference numerals. The figures are not to scale.
Reference numerals:
1. a driving motor; 2. an ISG motor; 3. a first rotational speed sensor; 4. a multi-speed planetary gear transmission; 5. a second rotation speed sensor; 6. a speed increasing box; 7. a wheel motor; 8. an electric dynamometer.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The embodiment of the utility model provides a test bench device based on a three-motor electric drive system, which comprises a support base, a drive motor 1, an ISG motor 2, a wheel motor 7, a multi-gear gearbox and an electric dynamometer 8, wherein the support base is provided with a plurality of drive motors; the input and output ends of the ISG motor 2 are connected with the output ends of the driving motor 1, and the wheel rim motor 7 is used for simulating a motor arranged on the wheel rim to independently drive the wheel; the input end of the multi-gear gearbox is connected with the output end of the ISG motor 2, and the output end of the multi-gear gearbox is connected with the input end of the wheel motor 7; the electric power dynamometer 8 is connected with the output end of the wheel motor 7 and is used for measuring the torque of the wheel motor 7, and the electric power dynamometer 8 is used for measuring the torque of the wheel motor 7 according to the principle that the acting torque and the reaction torque are equal in magnitude and opposite in direction.
The driving motor 1, the ISG motor 2, the wheel side motor 7, the multi-gear gearbox and the electric dynamometer 8 are all arranged on the supporting base and are controlled by an external main control console.
Specifically, when the external simulation engine case is connected to the bench test device of the present utility model, the output of the driving motor 1 corresponds to the engine output through the control of the main control console at this time, and the test driver can control the accelerator pedal on the simulation engine case and perform corresponding simulation driving control in cooperation with the brake pedal. In this case, the gantry apparatus corresponds to a hybrid system based on the ISG motor 2, and the ISG motor 2 is integrated with the engine output shaft.
In addition, when the external simulation engine case is not connected, the bench test is a pure electric test. When the pure electric test is performed, the electric motor may be classified into a two-motor pure electric driving system and a three-motor pure electric driving system according to whether the ISG motor 2 idles. When the ISG motor 2 idles, the test bench is a double-motor pure electric vehicle test bench. And the test of the whole vehicle performance of the double-motor pure electric vehicle is realized under the set control strategy by writing a control strategy of the main control console software. Meanwhile, due to the adoption of the multi-gear planetary gear transmission 4, the bench can carry out corresponding gear shifting control strategy research. After the ISG motor 2 is electrified, the driving system of the test bed is changed into a three-motor driving system, the ISG motor 2 becomes an auxiliary motor at the moment, and the efficiency of the main driving motor 1 can be further improved by matching of the three motors at the moment, so that the whole vehicle efficiency is improved. The bench test can be used for testing the corresponding three-motor control strategy.
In one embodiment, the device further comprises an up-speed box 6, wherein the up-speed box 6 is arranged on a supporting base between the wheel side motor 7 and the multi-gear gearbox, the output end of the up-speed box 6 is connected with the input end of the wheel side motor 7, and the input end of the up-speed box 6 is connected with the output end of the multi-gear gearbox.
Specifically, the speed increasing box 6 is used for increasing the rotation speed of the hub motor 7, and can increase the rotation speed by 50% -70%, for example, the hub motor 7 is slowly accelerated from 3000 rpm to a set 5000 rpm.
In one embodiment, the input end and the output end of the wheel motor 7 are both mounted on the support base through a bracket with a bearing seat, and the input end and the output end of the wheel motor 7 are positioned on the same horizontal line.
Specifically, it is preferable that the input end and the output end of the wheel side motor 7 are located on the same horizontal line, and the input end and the output end of the wheel side motor 7 may not be located on the same horizontal line, so long as the design requirement is satisfied.
In one embodiment, a second rotational speed sensor 5 is mounted on the input of the upshift box 6 or the output of the multi-speed gearbox, the second rotational speed sensor 5 being electrically connected to an external console.
Specifically, the second rotation speed sensor 5 is used for detecting the rotation speed of the output end of the multi-gear gearbox, and can transmit the detected rotation speed information to the main control console in real time, so that the main control console can conveniently control the rotation speed of the output end of the multi-gear gearbox.
In one embodiment, the input and output of the lift box 6 are not on the same horizontal line, and the input position of the lift box 6 is lower than the output position of the lift box 6.
Specifically, the structure is a preferable design mode, and is convenient to process and manufacture, and in addition, the input end and the output end of the speed increasing box 6 can be on the same horizontal line, so that the design requirement can be met.
In one embodiment, the drive motor 1, ISG motor 2 and electric dynamometer 8 are all mounted on a support base by removable mounts.
Specifically, the detachable mounting seat is designed to facilitate the installation of the driving motor 1, the ISG motor 2 and the electric dynamometer 8 during the use, and also facilitate the disassembly and replacement of the driving motor 1, the ISG motor 2 and the electric dynamometer 8 under the condition of damage.
In one embodiment, a first rotational speed sensor 3 is provided on the input of the multi-speed gearbox or the output of the ISG motor 2, the first rotational speed sensor 3 being electrically connected to an external console. The first rotation speed sensor 3 is used for detecting the rotation speed of the input end of the multi-gear gearbox, and can transmit detected rotation speed information to the main control console in real time, so that the main control console can conveniently control the rotation speed of the input end of the multi-gear gearbox.
In one embodiment, the multi-speed gearbox is a three-speed planetary gearbox comprising three rows of independently operable planetary gear mechanisms and a transmission controller, each row of planetary gear mechanisms being controlled by the transmission controller, the transmission controller being electrically connected to an external console.
In particular, a three-speed planetary gearbox is a preferred form of multi-speed gearbox, and most of existing test stands adopt a two-speed planetary gearbox, and the three-speed planetary gearbox has more choices compared with the existing two-speed planetary gearbox. The three rows of planetary gear mechanisms in the three-gear planetary gear transmission can work independently and do not interfere with each other; the three rows of planetary gear mechanisms are respectively a front row planetary gear mechanism, a middle row planetary gear mechanism and a rear row planetary gear mechanism;
the working process of the three-gear planetary gearbox is as follows: when the gear ring of the front row planetary gear mechanism is braked by the transmission controller, the middle row planetary gear mechanism and the rear row planetary gear mechanism are in free idle running, and the transmission ratio at the moment is determined by the front row planetary gear mechanism; when the gear ring of the middle-row planetary gear mechanism is braked by the transmission controller, the front-row planetary gear mechanism and the rear-row planetary gear mechanism are in free idle running, and the transmission ratio at the moment is determined by the middle-row planetary gear mechanism; when the ring gear of the rear row planetary gear mechanism is braked by the transmission controller, the front row planetary gear mechanism and the middle row planetary gear mechanism are free to idle, and the transmission ratio at this time is determined by the rear row planetary gear mechanism.
In one embodiment, the input end and the output end of the three-gear planetary gear transmission are both mounted on the support base through a bracket with a bearing seat, the input end and the output end of the three-gear planetary gear transmission are horizontally arranged, and the input end and the output end of the three-gear planetary gear transmission are not on the same horizontal line.
In one embodiment, the support base is an integrally formed mounting plate or a mounting plate formed by splicing a plurality of detachable flat plates.
Specifically, the support base can be an integrally formed mounting plate under the condition that the space is large enough; under the condition of limited space position, the support base can firstly select a mounting plate formed by splicing a plurality of detachable flat plates, the number of the required flat plates can be determined according to the requirement, and the splicing mode can be spliced or buckled.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Although the utility model herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present utility model. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other described embodiments.
Claims (10)
1. Test bench device based on three motor electric drive system, including supporting the base, its characterized in that still includes:
a driving motor;
the output end of the ISG motor is connected with the output end of the driving motor;
a rim motor for simulating a motor mounted on a rim of a wheel to individually drive the wheel;
the input end of the multi-gear gearbox is connected with the output end of the ISG motor, and the output end of the multi-gear gearbox is connected with the input end of the wheel motor; and
the electric dynamometer is connected with the output end of the wheel motor and is used for measuring the torque of the wheel motor;
the driving motor, the ISG motor, the hub motor, the multi-gear gearbox and the electric dynamometer are all installed on the supporting base and are controlled by an external main control console.
2. The three-motor-based electric drive system test bench device of claim 1, further comprising an upshift box mounted on the support base between the rim motor and the multi-speed gearbox, the upshift box output end being connected with an input end of the rim motor, and the upshift box input end being connected with an output end of the multi-speed gearbox.
3. The three-motor-based electric drive system test bench device according to claim 1 or 2, wherein the input end and the output end of the wheel motor are mounted on the support base through a bracket with a bearing seat, and the input end and the output end of the wheel motor are positioned on the same horizontal line.
4. The three-motor-based electric drive system test bench device according to claim 2, wherein a second rotation speed sensor is mounted on an input end of the upshift box or an output end of the multi-speed gearbox, and the second rotation speed sensor is electrically connected with the external main control console.
5. The three-motor electric drive system based test bench device of claim 2, wherein the input and output ends of the lift box are not on the same horizontal line, and the input end position of the lift box is lower than the output end position of the lift box.
6. The three-motor-based electric drive system test bench device of claim 2, wherein the drive motor, the ISG motor, and the electric dynamometer are all mounted on the support base by removable mounts.
7. The three-motor-based electric drive system test bench device according to any of claims 1-2 and 4-6, wherein a first rotational speed sensor is provided on an input end of the multi-speed gearbox or an output end of the ISG motor, and the first rotational speed sensor is electrically connected with the external console.
8. The three-motor-based electric drive system test bench device of any of claims 1-2, 4-6, wherein the multi-speed gearbox is a three-speed planetary gearbox comprising three rows of independently operable planetary gear mechanisms and a transmission controller, each row of planetary gear mechanisms being controlled by the transmission controller, the transmission controller being electrically connected to the external master console.
9. The three-motor-based electric drive system test bench device of claim 8, wherein the input and output ends of the three-speed planetary gear box are both mounted on the support base through a bracket with a bearing seat, the input and output ends of the three-speed planetary gear box are horizontally arranged, and the input and output ends of the three-speed planetary gear box are not on the same horizontal line.
10. The three-motor-based electric drive system test bench device according to claim 1, wherein the support base is an integrally formed mounting plate or a mounting plate formed by splicing a plurality of detachable flat plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320014202.6U CN220064683U (en) | 2023-01-04 | 2023-01-04 | Test bench device based on three-motor electric drive system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320014202.6U CN220064683U (en) | 2023-01-04 | 2023-01-04 | Test bench device based on three-motor electric drive system |
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| CN220064683U true CN220064683U (en) | 2023-11-21 |
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| CN202320014202.6U Active CN220064683U (en) | 2023-01-04 | 2023-01-04 | Test bench device based on three-motor electric drive system |
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| CN (1) | CN220064683U (en) |
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2023
- 2023-01-04 CN CN202320014202.6U patent/CN220064683U/en active Active
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