CN117058955A - Driving motor practical training teaching system and method for new energy automobile - Google Patents
Driving motor practical training teaching system and method for new energy automobile Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/187—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for measuring instruments
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
Abstract
The invention relates to a driving motor practical training teaching system of a new energy automobile and a method thereof, belonging to the technical field of the practical training teaching of the new energy automobile, and comprising a control module, a shell and a driving motor arranged in the shell, wherein the control module is used for controlling the power of the driving motor, the control module is used for inputting a time-varying teaching power curve of the driving motor, the control module instructs the driving motor to operate with corresponding power according to the power value variation trend of the teaching power curve, a motor controller and a low-voltage output end of the driving motor are respectively and electrically connected with a detection module, the detection module is used for detecting the voltage data of a connecting end, any one detection module comprises a low-voltage detector and a high-voltage detector, the two detectors are mutually connected in parallel and are respectively and electrically connected with the control module, and the control module controls the on-off of the two detectors according to the power value variation trend of the teaching power curve; the teaching device has the advantages of high data acquisition precision while giving consideration to teaching effects.
Description
Technical Field
The invention belongs to the technical field of new energy automobile practical training teaching, and particularly relates to a driving motor practical training teaching system and a driving motor practical training teaching method for a new energy automobile.
Background
At present, a new energy automobile enters a high-speed development period, along with development, main components on the new energy automobile, such as a driving motor technology and the like, are developed greatly, a driving motor belongs to a high-strength operation device, a certain fault probability exists, and an operator with professional knowledge is required to maintain and repair, so that the operator with related knowledge of the driving motor needs to be cultivated.
The traditional culture mode generally needs to depend on a whole vehicle, does not have a load function, or has a single load type, and cannot be adjusted in load size, so that students hardly understand core knowledge points such as energy conversion, energy loss, motor efficiency, mechanical characteristics and the like of a driving motor in actual operation, therefore, chinese patent CN114120736A discloses a driving motor practical training system and a test method of an electric vehicle, and the driving motor practical training system comprises a hysteresis brake, an electric dynamometer and a hydraulic dynamometer, wherein the hysteresis brake, the electric dynamometer and the hydraulic dynamometer are respectively connected with a torque rotating speed sensor through a coupler; the driving motor controller is used for receiving a motor operation command sent by the upper computer and receiving feedback signal data of the torque rotating speed sensor to control power conversion of the driving motor, and by arranging the upper computer and the load simulation device, the driving motor carries multiple types of variable loads, so that a user can control the operation of the driving motor by using the upper computer input command through practical training to master core knowledge points such as energy conversion, energy loss, motor efficiency, mechanical characteristics and the like of the driving motor in actual operation; however, because the trainee needs to fully understand the voltage condition of each circuit of the driving motor when the engine is under different working conditions, the data acquisition device needs to be arranged at each position of the driving motor circuit, and the data acquisition device is used for carrying out circuit data acquisition on each position of the driving motor circuit, so that the trainee can observe and learn, the voltage change range is larger due to the wide rotating speed range under various working conditions of the actual motor working which needs to be simulated in the teaching process, the optimal detection range of the general data acquisition device is limited, the probability can not cover the change range of the motor circuit, the structure of the data acquisition device in the structure is not adapted to the condition, and meanwhile, the driving motor can vibrate during running to influence the data acquisition device, so that the data acquisition precision is insufficient.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a driving motor practical training teaching system and a driving motor practical training teaching method for a new energy automobile, and the driving motor practical training teaching system has the characteristics of taking teaching effects and high data acquisition accuracy into consideration.
The aim of the invention can be achieved by the following technical scheme:
the driving motor practical training teaching system of the new energy automobile comprises a control module, a shell and a driving motor arranged in the shell, wherein the control module is used for controlling the power of the driving motor and comprises an upper computer, the upper computer is used for inputting a teaching power curve of the driving motor, which changes with time, and the control module instructs the driving motor to operate with corresponding power according to the power value change trend of the teaching power curve;
the motor controller and the low-voltage output end of the driving motor are respectively and electrically connected with a detection module, the detection modules are used for detecting voltage data of the motor controller and the low-voltage output end, the detection modules are electrically connected with the control module and upload the data to the control module, a data panel is arranged at the shell, the data panel is electrically connected with the control module and is used for displaying the data uploaded by the detection modules, any one detection module comprises a low-voltage detector and a high-voltage detector, the two detectors are mutually connected in parallel and are respectively and electrically connected with the control module, and the control module controls the on-off of the two detectors according to the power value change trend of a teaching power curve;
any detector is provided with a sensitivity adjuster, the sensitivity adjuster is electrically connected with a control module, and the control module controls the sensitivity of the sensitivity adjuster according to the power value change trend of the teaching power curve.
As a preferable technical scheme of the invention, the upper computer is used for downloading an actual power curve of the power change along with time in the actual running of the vehicle from the cloud platform, and the control module controls the on-off of the two detectors according to the power value change trend of the actual power curve.
As a preferable technical scheme of the invention, a circuit diagram is printed on the surface of the shell, the circuit diagram is arranged corresponding to the internal circuit of the driving motor, and the data panel is arranged on a part of the circuit diagram corresponding to the motor controller and the low-voltage output end.
As a preferable technical scheme of the invention, the detection module is arranged in the shell, the shell is matched with the detection module to form a containing cavity, the containing cavity is connected with the top of the inner wall of the shell through the buffer component, and a buffer cushion is arranged in the containing cavity.
As a preferable technical scheme of the invention, any detector is electrically connected with a precision calibrator, the precision calibrator is electrically connected with a control module, and the control module controls the on-off between the detector and the precision calibrator according to a teaching power curve.
As a preferable technical scheme of the invention, the bottom of the shell is provided with a pulley.
As a preferred embodiment of the present invention, the housing is made of a transparent polyethylene material.
As a preferable technical scheme of the invention, the shell is provided with the electric leakage detection assembly on the outer surface, the electric leakage detection assembly is electrically connected with the control module and uploads electric leakage detection data, the control module is electrically connected with an alarm, and the control circuit instructs the alarm to start or stop according to the electric leakage detection data.
As a preferable technical scheme of the invention, the output end of the driving motor is connected with a load simulation assembly, the load simulation assembly is electrically connected with a control circuit, and the control module is used for controlling the load output of the load simulation assembly.
The invention also provides a driving motor practical training teaching method of the new energy automobile, which comprises the following steps:
step one: the teacher draws a teaching power curve or downloads an actual power curve from the cloud platform through the upper computer according to the teaching plan;
step two: the control module instructs the driving motor to operate with the teaching power curve corresponding power along with time according to the teaching power curve.
Step three: the control module is used for connecting the high-voltage detector or the low-voltage detector with two detection points to be detected according to the teaching power curve, the detector is used for uploading detected data to the control module, the control module is used for uploading the data to the data panel, and the data panel is used for displaying the data uploaded by the detection module;
step four: the student observes and learns to the driving motor in data panel and the casing.
The beneficial effects of the invention are as follows:
(1) By arranging the high-voltage detector and the low-voltage detector and enabling the control module to switch the two detectors according to the power curve, detection errors caused by voltage changes exceeding the detection range of a single detector due to the fact that the driving motor working condition changes are introduced in the teaching process are avoided, and data acquisition accuracy is improved while the teaching effect is ensured;
(2) The sensitivity adjuster is arranged in the detector, and the control module controls the sensitivity adjuster according to the power curve, so that normal data change is acquired while influence of interference data caused by vibration on data acquisition precision is avoided;
(3) The accuracy calibrator electrically connected with the detector is arranged, and the control module is used for controlling the accuracy calibrator to be connected with the detector in a disconnection state according to the power curve, so that the data acquisition accuracy is calibrated on the premise of not affecting the normal data acquisition of the detector, and the data acquisition accuracy is further improved while the teaching effect is ensured.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the inside of the housing of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic diagram of the overall circuit of the control module;
fig. 5 is a schematic circuit diagram of the detection module.
Description of main reference numerals:
in the figure: 1. a housing; 11. a support plate; 12. a data panel; 13. a leakage detection assembly; 14. a receiving chamber; 15. a buffer assembly; 2. a driving motor; 21. a load simulation component; 3. a control module; 31. a detection module; 311. a high voltage detector; 312. a low voltage detector; 33. a precision calibrator; 34. sensitivity adjuster.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-5, a driving motor training teaching system of a new energy automobile includes a housing 1 and a driving motor 2 disposed in the housing 1, in this embodiment, the driving motor 2 is electrically connected with a power supply for providing energy for the driving motor, the housing 1 is a square closed housing 1, the driving motor 2 operates in the housing 1 under the driving of the power supply, and by separately disposing the driving motor 2 in the housing 1, a learner does not need to learn the driving motor 2 for the whole automobile, and the learner can observe and learn the operation process of the driving motor 2 when inputting the power supply by directly displaying the driving motor 2 in the operation in the housing 1, thereby improving the learning convenience;
meanwhile, the shell 1 can prevent students from being too close to the driving motor 2 in the learning process, and also prevent foreign objects from damaging the driving motor 2 in the operation process of the driving motor 2, so that the teaching safety is improved.
In the process of learning by a learner using the structure, a teacher sometimes needs to specify a teaching plan according to actual conditions, and the teaching plan has probability that the driving motor 2 needs to be driven to operate under different working conditions from various low power to high power, so that the learner learns to learn the driving motor 2 under different working conditions, in order to improve the teaching effect, the invention further comprises a control module 3, the control module 3 is used for controlling the power of the driving motor 2, the control module 3 at least comprises a distribution box and a motor controller, preferably, the control module 3 further comprises an upper computer, the upper computer is used for inputting a teaching power curve of the driving motor 2, which varies with time, the control module 3 instructs the driving motor 2 to change power according to the teaching power curve, in this embodiment, the upper computer comprises a computer, the operation interface can be used for drawing a two-dimensional curve graph of the driving motor 2, the horizontal coordinate of the graph is a time axis, the vertical coordinate of the graph is a power value, after the upper computer is used for controlling the power curve according to the teaching effect, in this embodiment, the upper computer reads the teaching power curve according to the teaching power curve, in this case, the upper computer instructs the control module 3 to input the teaching power curve, the driving motor 2 varies with time according to the teaching power curve, the teaching power curve is set up in this embodiment, the current time of the power curve is corresponding to the power curve, the teacher 3 is set by the teacher 3, the power curve can be controlled by the teacher, and the teacher can finish the current power curve through the control module, which varies with the power curve according to the teaching module 3, and the teaching curve, and the current power curve can be set up by the current power mode, and the power control module according to the teaching module 3, and the current time, and the power curve can change according to the power curve, and the teaching module can change time, and the power curve, and can according to the power and the time, and the power mode and the time and the power mode and can according to the time and can according to the power and the time and the teaching module and can and the time and can according. The driving motor 2 under different working conditions is automatically displayed according to the teaching plan of a teacher by the aid of the teaching system, students can conveniently learn by combining teaching plan contents and the driving motor 2 corresponding to the working conditions of the current contents of the teaching plan, and teaching effects and use convenience are improved.
In the teaching process of the structure, only the mechanical structure of the driving motor 2 under various working conditions can be displayed, the operation condition of the internal circuit of the driving motor 2 cannot be clearly displayed, the teaching effect is limited, the output end and the low-voltage output end of the motor controller of the driving motor 2 are respectively and electrically connected with the detection module 31 for further displaying the internal circuit of the motor, the detection module 31 is used for detecting the voltage data connected with the motor controller, the two detection modules 31 arranged at the two positions of the driving motor 2 are respectively and electrically connected with the control module 3 and upload the data to the control module 3, the control module 3 displays the detection data, in the embodiment, the two detection modules 31 are arranged in the shell 1, the control module 3 displays the detection data through an upper computer, in the operation of the driving motor 2, the power supply is mainly split into the high-voltage electric output for supplying the power output of the whole low-voltage circuit of the driving motor 2 and the high-voltage alternating-current electric output for supplying the power output of the driving motor 2, the two output circuits reflect the operation condition of the internal circuit of the driving motor 2, and the two output circuits are respectively and electrically connected with the detection modules 31 at the two positions, and the detection module 31 is made to display the voltage data after the detection module 31 is learned through the upper computer, and the teaching effect is improved.
Because the number and the volume of the display equipment are generally limited, the data cannot be fully displayed for multiple persons, so that each person cannot fully observe information when a plurality of students learn at the same time, preferably, the shell 1 is provided with a data panel 12, the control module 3 distributes the data to the data panel 12 after receiving detection data, in this embodiment, the upper part of the shell 1 is provided with a support plate 11 perpendicular to the ground, two data panels 12 are arranged on the support plate 11 corresponding to two detection modules 31, and the two data panels 12 are respectively used for displaying circuit data of an output end and a low-voltage output end of the motor controller, and by arranging the additional data panels 12, the simultaneous observation of information by a plurality of students is facilitated.
In order to enable students to learn the driving motor 2 under various working conditions in the teaching process, the output power of the driving motor 2 has a wide variation range when simulating various working conditions, so that the voltage variation range is larger, and the common circuit detector has a detection range, the detection precision is reduced when the voltage variation of the driving motor 2 exceeds the detection range of the circuit detector, the accuracy of data acquisition is reduced, the accuracy and the teaching effect of data acquisition of students are affected, in order to improve the accuracy of data acquisition, any detection module 31 comprises a low-voltage detector 312 and a high-voltage detector 311, the two detectors are mutually connected in parallel, the two detectors are respectively electrically connected with the control module 3 and upload detection data, the control module 3 controls the on-off of the two detectors according to a teaching power curve in the embodiment, any one of the detection modules 31 further comprises a switch, the two detectors and the corresponding part to be detected can be disconnected through the switch, the switch has two shift positions, the switch is connected with the high voltage detector 311 when in the first shift position, the switch is connected with the low voltage detector 312 when in the second shift position, the control module 3 is electrically connected with the switch to instruct the shift position of the switch to switch, when the switch is connected with one of the detectors, the detector is connected with the part to be detected, the other detector is disconnected with the part to be detected, meanwhile, a voltage threshold value is pre-input in the control module 3, and the output voltage estimated values at the output end and the low voltage output end of the motor controller under different powers are between the lower limit value of the range of the high voltage detector 311 and the upper limit value of the range of the low voltage detector 312, when the control module 3 reads the teaching power curve, and when the judgment result of the voltage pre-estimated value corresponding to a certain second is yes, the change-over switch is switched to a first gear when the power curve is operated for a second, when the judgment result of the voltage pre-estimated value corresponding to a certain second is no, the change-over switch is switched to a second gear when the power curve is operated for a second, the control module 3 is completed to switch the appropriate detector according to the power curve, the control module 3 uploads the data uploaded by the detector in a connection state to the corresponding data panel 12, and by arranging two detectors at each detection point to be detected and enabling the control module 3 to switch the two detectors according to the power curve, the detection error caused by the fact that the voltage change exceeds the detection range of a single detector due to the change of the working condition of the driving motor 2 in the teaching process is avoided, and the data measurement accuracy is improved while the teaching effect is ensured.
Since the driving motor 2 outputs mechanical energy to the outside, the driving motor 2 continuously vibrates along with the internal circuit thereof during operation, so when the driving motor 2 is in different working conditions, the operation speed of the driving motor can also change except for the voltage change of the circuit, when the circuit generates stronger mechanical vibration, the voltage and other numerical values of the circuit are affected by vibration to change due to the factors such as electromagnetic induction phenomenon and the like, random errors occur, when the sensitivity of the detector is too high, the random errors are detected and collected together and uploaded to the display panel, the data collection precision is affected with probability, the observation result of a learner is interfered by the random error data, the teaching quality is affected, conversely, when the random errors caused by weaker vibration are less, and the sensitivity of the detector is too low, the normal voltage change of the circuit cannot be detected with probability, in order to influence the data acquisition accuracy and detect normal data changes while avoiding influence of disturbance data caused by vibration on the data acquisition accuracy, any one of the detectors is provided with a sensitivity adjuster 34, the sensitivity adjuster 34 is electrically connected with a control module 3, the control module 3 controls the sensitivity of the detector through the sensitivity adjuster 34 according to a teaching power curve, in this embodiment, an amplifier is arranged in the detector and is electrically connected with the control module 3, the control module 3 increases or decreases the sensitivity of the detector by increasing or decreasing the amplification factor of the amplifier, the amplification factor of the amplifier is divided into two gears in total, the amplification factor of the first gear is larger than that of the second gear, meanwhile, the control module 3 is input with a power threshold in advance, when the control module 3 instructs the driving motor 2 to operate according to the power curve, when the power exceeds the threshold at a certain moment, representing that the operation power and vibration caused by operation have larger influence, the control module 3 adjusts the amplifier to a second gear, at the moment, the sensitivity of the detector is reduced, the probability that the detector collects and displays interference data caused by vibration together is reduced, the data collection accuracy under high vibration is improved, when the power at a certain moment is smaller than a threshold value, the influence caused by vibration is smaller, the control module 3 adjusts the amplifier to the first gear with higher sensitivity, the probability that normal change of a circuit of the driving motor 2 cannot be captured due to lower sensitivity is reduced, the collection accuracy of normal data is improved, and the control module 3 collects normal data change while avoiding the influence of the interference data caused by vibration on the data collection accuracy according to a power curve by arranging the sensitivity regulator 34 in the detector.
In the above process, since it is necessary to switch between two detectors according to the power curve, and when the moment of switching is performed, there is a probability that the current to be detected point instantaneously flows through the detectors, resulting in the detector, especially the high voltage detector 311, being overloaded and damaged, at this time, it is necessary to reduce the sensitivity of the detector, i.e. the amplification factor of the amplifier to prevent damage of the detector, for this purpose, preferably, the control module 3 selects several coordinate points on the power curve with seconds as nodes after inputting the power curve, and two adjacent coordinate points are connected, and draws a multi-segment line close to the power curve, then calculates the slope k of each segment in the multi-segment line, to obtain the approximate change rate of the power curve per second, when the control module 3 makes a judgment on whether the voltage pre-estimated value exceeds the voltage threshold value for a certain second on the power curve, then calculates the slope k corresponding to the second, and in accordance with k, in particular, a= (k+52.25) ×20-1045, wherein in order to avoid the influence on calculation of the slope over-large or over-small, when the slope k is smaller than 0.5, the current slope is calculated to be larger than 0, and a command is sent to the current threshold value is adjusted, when the current slope is calculated to be larger than 0, and a is adjusted to be larger than the threshold value than 0, and a is adjusted to be a when the current threshold is adjusted, when the current is adjusted to be larger than a threshold than 3, the instruction sensitivity adjuster 34 restores the sensitivity to the amplification factor corresponding to the normal gear, calculates by introducing the slope of the power curve, and reduces the sensitivity of the detector when switching the detector according to the slope, thereby reducing the probability of data acquisition accuracy reduction caused by overload damage of the detector at the switching moment, and ensuring the data acquisition accuracy while considering the teaching effect.
In actual use, sometimes the power curve set by the upper computer cannot be completely fit with the change of the power of the driving motor 2 with time in the running process of the new energy automobile, so that a learner cannot learn the driving motor 2 in the actual power curve only when the driving motor 2 is driven according to the instruction of the teaching power curve, and for this reason, preferably, the upper computer can also be used for downloading the actual power curve of the power in the actual running process of the automobile from the cloud platform, the control module 3 instructs the driving motor 2 to change the power with time according to the actual power curve, in actual use, the teacher can call the actual power curve or the teaching power curve set previously in the upper computer according to the teaching requirement, and then the control module 3 instructs the driving motor 2 to run according to the fetched power curve, and the power change curve of the driving motor 2 on the driving motor 2 when the new energy automobile is actually running is led into the teaching system, so that the learner can learn the driving motor 2 closer to the actual running state.
Compared with the teaching power curve, the actual power curve is larger in the power change range and the power change rate, and the vibration intensity and the voltage change range of the internal circuit of the driving motor 2 are larger, so that the data acquisition precision is considered while the teaching effect is further ensured by arranging two detectors at each detection point and arranging a sensitivity adjuster 34 in each detector, and simultaneously enabling the control module 3 to control the on-off of the two detectors and the sensitivity of the detectors according to the power curve.
Because the internal circuit of the driving motor 2 is more complicated, but the above-mentioned structure fails to carry out fine show to the circuit in the teaching process, be unfavorable for the learner to carry out supplementary understanding at the in-process of study driving motor 2 contrast circuit structure, teaching effect is not good, for further improvement teaching effect, casing 1 surface printing has the circuit diagram, the circuit diagram corresponds driving motor 2 internal circuit setting, data panel 12 sets up the part corresponding motor controller and low voltage output in the circuit diagram, in this embodiment, casing 1 top is equipped with the show board, the show board perpendicular to ground, driving motor 2 internal circuit diagram prints on the show board, simultaneously, for further convenience learner combines the circuit diagram to understand the data on the data panel 12, be used for showing motor controller output and low voltage output's data panel 12, set up respectively in the position department that is printed with motor controller output and low voltage output in the circuit diagram, through setting up the show board and printing the circuit diagram on the show board, make the learner understand the motor of in the learning operation process in combination with the position department of corresponding components and parts, further guarantee the teaching effect.
Above-mentioned driving motor 2 is in the in-process of vibrations in casing 1, because vibrations can be transmitted to the casing 1 of being connected with driving motor 2, consequently can lead to the fact the influence to the detector that sets up in casing 1, have the internal circuit that probability influences the detector and the data acquisition precision of detector, in order to avoid the emergence of this kind of condition, casing 1 cooperation detection module 31 is provided with and holds chamber 14, hold chamber 14 and casing 1 inner wall top through spring coupling through buffer module 15, be equipped with the blotter in holding chamber 14, in this embodiment, correspond two detection module 31 in the casing 1 and be provided with two respectively and hold chamber 14, every holds chamber 14 and suspend in midair with casing 1 internal surface top through buffer module 15, buffer module 15 includes a telescopic link and sets up the spring in the telescopic link, telescopic link one end is connected with corresponding chamber 14 top, the other end is connected with casing 1 internal top, hold chamber 14 inner wall all to be covered with the foam-rubber cushion simultaneously, at this moment the foam-rubber cushion sets up between holding chamber 14 and detection module 31, when the vibrations that drive motor 2 produced in the operation are passed to the telescopic link along casing 1, and the cushion in the cushion is equipped with buffering, and absorb the partial shock-absorbing module that absorbs the vibration of the vibration in the telescopic link, the vibration and the vibration of the further has been set up to the vibration-up precision, wherein the vibration-absorbing module is improved and the vibration-absorbing precision is set up in the vibration-up.
In the process of reading data for a long time, the detection assembly has probability that various random factors generate deviation, at this time, the data acquisition precision is lower, in order to avoid the occurrence of the situation, any detector is electrically connected with the precision calibrator 33, the precision calibrator 33 is electrically connected with the control module 3, the control module 3 controls the on-off between the detector and the precision calibrator 33 according to a teaching power curve, in the embodiment, the precision calibrator 33 is a power supply and a resistor which are connected in series and output by fixed voltage, the detector is connected with the resistor in parallel, when the voltage output and the resistance value are fixed, the voltage values at two ends of the resistor are fixed, the control module 3 is pre-input with voltage reference values at two ends of the resistor in the precision calibrator 33, when the control module 3 connects one detector in the same detection module 31 with the to-be-detected point according to a power curve, the control module 3 connects the two ends of the resistor in the other disconnected detector, at this time, the control module 3 receives the voltage detection value of the detector to the precision calibrator 33, and compares the detection value with the voltage reference value, when the difference between the two values is less than or equal to 5%, the difference between the two values is determined to be less than 5%, the difference is obviously equal to the 5%, the difference between the two values, the two detectors is no difference is determined to be greater than the difference, the difference is obviously, the error is detected by the error value, the error is detected by the error, and the error is further, the error is detected by the error, the error is detected by the detector, and the error, and the error is 3.
In order to facilitate the whole movement of the teaching system, the bottom of the shell 1 is provided with a pulley.
For convenient student observes driving motor 2 in 1 casing, simultaneously, because driving motor 2 as teaching platform need carry out high strength operation with certain frequency of use, the wearing and tearing take place after being used for the teaching for a long time and lead to the electric leakage probability, for convenient student's observation and reduce the influence of electric leakage to the teaching, casing 1 comprises transparent polyethylene material, during the teaching, the student can directly see the operation of the inside driving motor 2 of casing 1 through transparent polyethylene casing 1 direct observation, the insulation of polyethylene guarantees simultaneously when driving motor 2 unexpected electric leakage, the electric current can't pass through casing 1 and convey to the user with casing 1 contact.
For further reducing the influence of electric leakage to the teaching, casing 1 department is equipped with electric leakage detection subassembly 13, electric leakage detection subassembly 13 is connected with control module 3 electricity and uploads detection data, control module 3 electricity is connected with an alarm, control circuit instructs the start and stop of alarm according to monitoring data, in this embodiment, electric leakage detection subassembly 13's both ends are connected with casing 1 surface and ground respectively, when electric leakage detection subassembly 13 detects wherein there is the electric current to pass through, it causes the influence to casing 1 outside to prove driving motor 2's electric leakage, the operator that has probability influence and casing 1 contact, control module 3 instruction alarm sent the acousto-optic signal this moment, remind the operator to keep away from casing 1.
In order to further improve the operation accuracy of the simulation driving motor 2, the output end of the driving motor 2 is connected with a load simulation assembly 21, the load simulation assembly 21 is electrically connected with a control circuit, the control module 3 is used for controlling the load output of the load simulation assembly 21, in the embodiment, the load simulation assembly 21 is a hysteresis brake which is in transmission connection with the output end of the driving motor 2, the hysteresis brake causes a certain load to the driving motor 2 by changing the exciting current, the load in the operation process of the driving motor 2 is simulated to a certain extent, the fit degree between the operation of the driving motor 2 and the actual situation is improved, and the teaching effect is improved.
The invention also provides a practical training teaching method of the driving motor 2 of the new energy automobile, which comprises the following steps:
step one: the teacher draws a teaching power curve or downloads an actual power curve from the cloud platform through the upper computer according to the teaching plan;
step two: the control module 3 instructs the driving motor 2 to operate with the teaching power curve corresponding power over time according to the teaching power curve.
Step three: the control module 3 connects the high-voltage detector 311 or the low-voltage detector 312 with two detection points to be detected according to a teaching power curve, the detectors upload detected data to the control module 3, the control module 3 uploads the data to the data panel 12, and the data panel 12 displays the data uploaded by the detection module 31;
step four: the learner performs observation study on the data panel 12 and the driving motor 2 in the housing 1.
The working principle and the using flow of the invention are as follows:
when the power curve generating device is used, a teacher draws a teaching power curve through an upper computer according to teaching plan requirements, or after an actual power curve is downloaded from a cloud platform, the upper computer reads the teaching power curve, and when teaching, the teacher instructs a control module 3 to start according to the teaching power curve, the control module 3 reads the power curve and instructs a driving motor 2 to operate at the power value corresponding to the current time on the teaching power curve in different time according to the curve;
when the control module 3 reads the teaching power curve, power values corresponding to each second of the power curve are sorted at intervals of one second, then voltage estimated values corresponding to the power values are sorted, whether the voltage estimated values exceed a voltage threshold value or not is judged, when the control module 3 instructs the driving motor 2 to operate according to the teaching power curve, the switching switch is switched to a first gear when the control module operates for one second if the judgment result of the voltage estimated value corresponding to one second is yes, the switching switch is switched to a second gear when the control module operates for one second if the judgment result of the voltage estimated value corresponding to one second is no, and the control module 3 is completed to switch a proper detector according to the power curve;
in the above process, the control module 3 is further pre-input with a power threshold, when the power exceeds the threshold at a certain moment, the control module 3 adjusts the amplifier to a second gear, the sensitivity of the detector is reduced, the probability that the detector collects and displays interference data caused by vibration together is reduced, the data collection accuracy under high vibration is improved, when the power is less than the threshold at a certain moment, the influence caused by vibration is smaller, the control module 3 adjusts the amplifier to a first gear with higher sensitivity, the probability that the normal change of a circuit of the driving motor 2 cannot be captured due to lower sensitivity is reduced, and the collection accuracy of normal data is improved;
in this process, the buffer assembly 15 and the buffer pad reduce the impact of shock on the data acquisition accuracy.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. A driving motor practical training teaching system of a new energy automobile is characterized in that: the power control device comprises a control module, a shell and a driving motor arranged in the shell, wherein the control module is used for controlling the power of the driving motor, the control module comprises an upper computer, the upper computer is used for inputting a teaching power curve of the driving motor, which changes along with time, and the control module instructs the driving motor to operate with corresponding power according to the power value change trend of the teaching power curve;
the motor controller and the low-voltage output end of the driving motor are respectively and electrically connected with a detection module, the detection modules are used for detecting voltage data of the motor controller and the low-voltage output end, the detection modules are electrically connected with the control module and upload the data to the control module, a data panel is arranged at the shell, the data panel is electrically connected with the control module and is used for displaying the data uploaded by the detection modules, any one detection module comprises a low-voltage detector and a high-voltage detector, the two detectors are mutually connected in parallel and are respectively and electrically connected with the control module, and the control module controls the on-off of the two detectors according to the power value change trend of a teaching power curve;
any detector is provided with a sensitivity adjuster, the sensitivity adjuster is electrically connected with a control module, and the control module controls the sensitivity of the sensitivity adjuster according to the power value change trend of the teaching power curve.
2. The driving motor training teaching system of the new energy automobile according to claim 1, wherein: the upper computer is used for downloading an actual power curve of the power of the vehicle in actual running along with time from the cloud platform, and the control module controls the on-off of the two detectors according to the power value change trend of the actual power curve.
3. The driving motor training teaching system of the new energy automobile according to claim 1, wherein: the surface of the shell is printed with a circuit diagram, the circuit diagram is arranged corresponding to the internal circuit of the driving motor, and the data panel is arranged at a part of the circuit diagram corresponding to the motor controller and the low-voltage output end.
4. The driving motor training teaching system of the new energy automobile according to claim 1, wherein: the detection module is arranged in the shell, the shell is matched with the detection module to be provided with a containing cavity, the containing cavity is connected with the top of the inner wall of the shell through a buffer assembly, and a buffer pad is arranged in the containing cavity.
5. The driving motor training teaching system of the new energy automobile according to claim 2, wherein: any detector is connected with the precision calibrator electrically, the precision calibrator is connected with the control module electrically, and the control module controls the on-off between the detector and the precision calibrator according to the teaching power curve.
6. The driving motor training teaching system of the new energy automobile according to claim 1, wherein: the bottom of the shell is provided with a pulley.
7. The driving motor training teaching system of the new energy automobile according to claim 1, wherein: the housing is constructed of a transparent polyethylene material.
8. The driving motor training teaching system of the new energy automobile according to claim 1, wherein: the shell is characterized in that an electric leakage detection assembly is arranged on the outer surface of the shell, the electric leakage detection assembly is electrically connected with a control module and uploads electric leakage detection data, the control module is electrically connected with an alarm, and the control circuit instructs the alarm to start and stop according to the electric leakage detection data.
9. The driving motor training teaching system of the new energy automobile according to claim 1, wherein: the output end of the driving motor is connected with a load simulation assembly, the load simulation assembly is electrically connected with a control circuit, and the control module is used for controlling the load output of the load simulation assembly.
10. A driving motor practical training teaching method for a new energy automobile is characterized in that: the driving motor training teaching system comprising the new energy automobile of claims 1-9, further comprising the steps of:
step one: the teacher draws a teaching power curve or downloads an actual power curve from the cloud platform through the upper computer according to the teaching plan;
step two: the control module instructs the driving motor to operate with the power corresponding to the teaching power curve along with time according to the teaching power curve;
step three: the control module is used for connecting the high-voltage detector or the low-voltage detector with two detection points to be detected according to the teaching power curve, the detector is used for uploading detected data to the control module, the control module is used for uploading the data to the data panel, and the data panel is used for displaying the data uploaded by the detection module;
step four: the student observes and learns to the driving motor in data panel and the casing.
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| CN202311032857.7A CN117058955B (en) | 2023-08-16 | Driving motor practical training teaching system and method for new energy automobile |
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| CN202311032857.7A CN117058955B (en) | 2023-08-16 | Driving motor practical training teaching system and method for new energy automobile |
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