167results about How to "Evaluate performance" patented technology

The invention provides a segmental bridge wind vibration performance evaluation method and system, and relates to the technical field of segmental bridge wind vibration performance. Laser scanning is used for obtaining geometric parameters of a segmental bridge and collecting material characteristics, the geometric parameters and the material characteristics are imported into finite element software, a basic model is established, and boundary conditions are set; modal analysis is executed in finite element software, the natural vibration frequency and the vibration mode are calculated through a Lanczos method, and basic data are provided for wind load analysis; simulating a wind load by using a Davenport wind spectrum, setting a wind speed and a wind direction, and then applying the wind speed and the wind direction to the model; finally, the wind load condition is adjusted, the performance of the bridge under different wind loads is tested, and the displacement, acceleration and stress distribution of the bridge are analyzed and calculated through dynamic response to complete the wind vibration performance evaluation of the segmental bridge.

The invention relates to the technical field of bridge maintenance, in particular to a beam bridge dynamic anti-seismic performance evaluation method and system, and the method comprises the steps: model preparation, model establishment, boundary condition and load application, analysis and calculation, and result analysis and evaluation. According to the method, through detailed data collection and model preparation, a detailed finite element model of the bridge is accurately constructed, actual characteristics of a main beam, a pier, a support and other key components are fully considered, boundary conditions are reasonably set, seismic loads are applied, calculation is performed by adopting a proper anti-seismic analysis method, and the seismic response of the bridge is effectively calculated; the method has the advantages that the method is simple, the anti-seismic performance of the bridge under the earthquake action is evaluated, potential weak parts of the bridge under the earthquake action are accurately identified, reliable basis is provided for formulating targeted anti-seismic reinforcement measures, and the efficiency and reliability of anti-seismic analysis and performance evaluation of the bridge structure are remarkably improved.

The invention relates to the technical field of semiconductor power device testing, in particular to a dynamic reverse bias testing method and system for a semiconductor power device, which can accurately evaluate the performance of the device under a dynamic reverse bias condition and improve the testing efficiency and accuracy. The method comprises the following steps: acquiring a plurality of electrical characteristic data of a to-be-detected semiconductor power device to obtain an electrical characteristic data set; inputting the electrical characteristic data set into a dynamic reverse bias test model to obtain a first dynamic reverse bias test result; transmitting a fast changing backward voltage pulse signal to the to-be-detected semiconductor power device to obtain an output signal after the backward voltage pulse signal passes through the to-be-detected semiconductor power device; judging whether the output signal exceeds a preset abnormal threshold value or not; if not, outputting the first dynamic reverse bias test result as a dynamic reverse bias test result of the semiconductor power device; and if yes, extracting the obtained abnormal output signal, and inputting the abnormal output signal into the dynamic reverse bias failure analysis model.

The invention relates to a permanent magnet synchronous motor design method based on a multi-objective optimization algorithm, and the method achieves the efficient design and optimization of a permanent magnet synchronous motor through the combination of finite element simulation, multi-physical field coupling analysis, neural network performance prediction, and a hybrid optimization algorithm of a genetic algorithm and particle swarm optimization. The method comprises the following steps: determining a plurality of design targets according to an application scene of a motor, selecting key design variables, performing data cleaning and normalization processing, performing electromagnetic field, thermal field and mechanical field simulation by using a multi-physics field coupled finite element model, predicting the performance of the motor by combining LSTM and Transform neural network models, expanding a training data set through a data enhancement technology, and performing data enhancement on the motor. Finally, a hybrid optimization algorithm combining a genetic algorithm and particle swarm optimization is adopted to carry out global optimization and adaptive adjustment of design parameters, and a Pareto optimal leading edge is utilized to find out an equilibrium solution between design targets, so that the accuracy and efficiency of motor design are improved, and the method is suitable for various motor design scenes.

The invention discloses a fluid optimization method for a hydraulic torque converter, which comprises the following steps of: constructing a geometric model of the hydraulic torque converter, generating a hydraulic torque converter model, and further performing grid division on the hydraulic torque converter model; setting a preset fluid model, setting fluid attributes of the preset fluid model, and further setting a preset boundary condition and an initial flow field condition; calculating an internal flow field of the hydraulic torque converter by adopting a preset solving method, analyzing a flow field result and identifying an abnormal region with energy loss exceeding a preset range; carrying out preset structure optimization on the hydraulic torque converter, generating a hydraulic torque converter optimization model, carrying out fluid dynamic simulation, and verifying an optimization result; and circulating the optimization process until the optimization model of the hydraulic torque converter meets a preset optimization requirement. According to the fluid optimization method for the hydraulic torque converter, the distribution of the flow field in the hydraulic torque converter can be deeply researched through analogue simulation, an energy loss source is found out, and a targeted optimization scheme is put forward.

The invention relates to the technical field of air filters, in particular to an experimental system and method for detecting an air filter. The system comprises a support frame used for keeping the stability of the experiment system; the test chamber adopts a vertical test channel pipeline, the top and the bottom of the test chamber are respectively provided with a cylinder used for assembling and disassembling an air filter and an absolute filter, and the downstream of the test chamber is provided with double gas sampling ports which are used for separately sampling particulate matter and gas filtering performance tests; the fan subsystem is arranged above the test chamber and is used for simulating air flow under a working condition; the sensor module is used for monitoring various parameters in the testing process in real time; and the data acquisition and processing sub-module is used for receiving the data of the sensor module, analyzing and processing the data and generating a test report. According to the technical scheme, the detection precision can be improved, the test process is simplified, and the filter performance is comprehensively evaluated.

The invention discloses a water absorption rate detection method and system for a macromolecular water absorption material, and relates to the technical field of macromolecular water absorption materials.The water absorption rate detection method for the macromolecular water absorption material comprises the following steps that the initial weight of a to-be-tested macromolecular water absorption material sample is weighed; dropwise adding test liquid to the surface of the polymer water-absorbing material sample by using a burette; obtaining test feature data; factors influencing the water absorption performance of the polymer water absorption material are obtained; predicting key factors influencing the water absorption rate of the polymer water absorption material; and judging whether the water absorbing material meets a preset performance standard or not. Conditions of each experiment can be ensured to be consistent, so that repeatability and reliability of results are improved, the water absorption process can be accurately controlled by dropwise adding test liquid through a burette, the water absorption behavior of the material can be better understood, key factors are adjusted through an optimization algorithm, then the performance of the material can be improved, and the test accuracy is improved. And the preset performance standard is met.

The invention provides a turbine case connection part reliability analysis and verification method considering uncertainty, and the method comprises the steps: building a finite element analysis model of a local connection structure of a turbine case, and achieving the representation of the uncertainty of connection rigidity; establishing a turbine casing structure uncertainty analysis model considering the connection rigidity uncertainty; determining a failure mode of the turbine case connecting part, defining a failure performance function, and performing reliability analysis on the turbine case structure; according to the finite element analysis result of the turbine case, designing a feature simulation piece of the connection part; processing a characteristic simulation part of the turbine case connecting part and carrying out a fatigue test; and obtaining a finite element analysis result of the turbine case of the processed characteristic simulation piece, and verifying the processed characteristic simulation piece in combination with the dispersibility of the fatigue life data. According to the method, the precision and engineering of the reliability analysis of the connection part of the turbine case are realized, and the precision of reliability evaluation is improved.

The invention discloses a rope technical equipment testing system and method under multi-environment conditions, and relates to the technical field of rope testing, and the system comprises the steps: building target testing equipment, and activating an environment simulation cabin module to set a plurality of environment simulation conditions; connecting the to-be-tested rope equipment to target test equipment and activating a mechanical loading module; performing various mechanical tests on the to-be-tested rope equipment, and generating a test data sensing record log; evaluating the to-be-tested rope equipment according to the test data sensing record log to generate a rope performance evaluation index; and performing test analysis on the to-be-tested rope equipment, generating a test report, and generating optimization suggestions of the to-be-tested rope equipment. The technical problem that the rope is lack of safety and reliability due to inaccurate performance test of the rope in the prior art is solved, and the technical effects of accurately simulating a complex environment, comprehensively evaluating the performance of the rope and improving the use safety and reliability of the rope are achieved.

The invention provides a port infrastructure performance monitoring system based on digital twinning, and relates to the technical field of port monitoring. In allusion to lack of special monitoring means and analysis methods for deformation joint changes and lack of a comprehensive and real-time monitoring system for accurately evaluating the overall performance of a wharf during wharf structure performance monitoring, the probability of ship collision events is calculated according to the wharf berthing ship condition and the wind speed grade, and then the wharf performance is accurately evaluated according to the monitoring data of deformation joints. And calculating the damage risk index of the wharf structure in each direction, finally obtaining the damage probability that the wharf bears impact, and giving corresponding early warning information according to the damage probability. The influence of the deformation joint on the wharf structure is considered, stress and vibration are combined, the stress condition of the wharf under the action of dynamic loads such as stormy waves and ship impact is accurately captured and analyzed, the actual stress state of the wharf can be more comprehensively reflected, and the accuracy and reliability of a monitoring system are improved.

The invention relates to a circuit breaker fault diagnosis system. Relates to the technical field of high-voltage circuit breaker fault detection. The system comprises a control module, a switching value acquisition module, a current acquisition module and a displacement acquisition module. The input end of the control module is respectively connected with the output ends of the switching value acquisition module, the current acquisition module and the displacement acquisition module; the switching value acquisition module acquires opening and closing positions of the circuit breaker; based on the opening and closing position of the circuit breaker, a control module collects vibration information through a vibration sensor, and obtains vibration information, current information and stroke information of a circuit breaker touch stroke in the opening and closing process of the circuit breaker; and the control module extracts feature vectors corresponding to the vibration information, the current information and the stroke information, obtains a composite feature vector, and compares the composite feature vector with a preset value to realize fault detection of the circuit breaker. By adopting the system, the detection accuracy of circuit breaker fault detection can be improved.

The invention discloses a cotton yarn stretching testing device, and belongs to the technical field of cotton yarn stretching testing devices, the cotton yarn stretching testing device comprises a stretching tester, the upper surface of the stretching tester is fixedly connected with a support frame, and the side surface of the support frame and the upper surface of the stretching tester are provided with clamp pieces; the humidity protection pipe is arranged on the outer surface of the supporting frame, and the outer surface of the supporting frame is fixedly connected with an electric push rod. Meanwhile, cold air can be blown into the sealed protective cover through an air cooler, a cold air pipe, a connecting pipe and an air outlet pipe to create a cold and wet environment, a temperature and humidity sensor can monitor the temperature in the protective cover in real time, and the limitation that a traditional cotton yarn can only be subjected to a stretching test under the dry condition is avoided; it is ensured that the test result is closer to the actual application environment, accurate control over the humidity and temperature of the test environment is achieved, and the stretching test of the cotton yarn under different cold air and humidity climates can be simulated.

In the technical field of solid state disk testing, the invention relates to a solid state disk intelligent protocol testing method and device, and the method comprises the steps: loading a to-be-tested solid state disk on a common testing mainboard through a specific connecting seat, and carrying out the testing interface judgment through a specific interface specification; and configuring a compiling environment by using a preloaded operating system or a sandbox simulation system, generating a test script according to the protocol test request, and finally testing the solid state disk to be tested through CDM performance. According to the invention, intelligent protocol consistency of automatic testing of the solid state disk is realized, solid state disks with various joint types are supported, and the testing efficiency and accuracy are improved.

The invention relates to the technical field of material science, and particularly discloses a method for testing photoelectric and thermal characteristics of a semiconductor device, which comprises the following steps of: acquiring crystal impurity evaluation parameters of the semiconductor device to perform crystal impurity evaluation of the semiconductor device, and acquiring a crystal impurity interference correction value, the method comprises the steps of obtaining a thermal characteristic parameter set and a light characteristic parameter set of a semiconductor device, determining a test temperature array and a test light intensity array, determining a plurality of photo-thermal coupling test schemes based on the test temperature array and the test light intensity array, applying each photo-thermal coupling test scheme to the semiconductor device and obtaining an electrical characteristic tested data set, according to the method, the electrical characteristic tested value is calculated based on the electrical characteristic tested data set corresponding to each photo-thermal coupling test scheme, the optimal photo-thermal coupling test scheme is determined, the rationality and adaptability of formulating the photo-thermal coupling test scheme are improved, and it is ensured that the test result can reflect the characteristic performance of the semiconductor device in various environments.

The invention discloses a comprehensive detection system for a new energy automobile chip. The comprehensive detection system comprises a data acquisition module used for acquiring operation data of the new energy automobile chip; the signal processing module is used for converting the analog signal into a digital signal and processing the signal; the fault analysis module is used for analyzing the operation data through a machine learning algorithm and constructing high-sensitivity features strongly related to faults; the safety test module is used for carrying out HBM, CDM and EMC tests to evaluate the safety performance of the chip; the performance test module is used for evaluating the performance of the chip under set extreme conditions through a high temperature life test HTOL and an early life failure test ELFR; and the data storage and analysis module is used for storing test data. According to the scheme provided by the invention, the prediction accuracy, the measurement efficiency and the anomaly detection capability are improved according to the measured electrical variable and the measured magnetic variable, so that the performance, the safety and the reliability of the chip can be comprehensively evaluated.

The invention relates to the technical field of strength detection, in particular to a TPU particle strength detection device. The invention provides a TPU particle strength detection device capable of simulating an extreme environment and realizing dynamic pressure simulation, which comprises a rack, a hydraulic cylinder mounted in the rack, a piston part of the hydraulic cylinder fixedly connected with a lifting frame, a pressing frame slidably connected in the lifting frame, and an impact frame slidably connected on the pressing frame, and telescopic rods which are symmetrically distributed are fixedly connected to the pressing frame. According to the device, conventional testing is conducted on TPU particles through the hydraulic cylinder, the lifting frame, the pressing frame, the pressure sensor and the like, then dynamic pressure testing is simulated through the impact frame, then the compression condition of the TPU particles in the extreme environment is simulated through the cold air channel and the heating wire, and the device integrates conventional testing, dynamic testing and extreme temperature testing; the performance of the TPU particles under different conditions can be comprehensively evaluated, the tedious process of respective testing is avoided, and the testing efficiency is improved.

The utility model discloses a large-scale sand dust test box which comprises a circulating pipeline, a test section is arranged in the circulating pipeline, a sample rotating table used for adjusting the sand dust receiving angle of a sample is arranged in the middle of the test section, the circulating pipeline is connected end to end, and a circulating fan and an exhaust inlet are arranged at the joint of the circulating pipeline. The circulating fan and the air suction opening are matched to control the air speed in the circulating pipeline, a sand and dust adding device is arranged on the circulating pipeline, and the sand and dust adding device conveys sand particles and dust particles of different sizes into the circulating pipeline. The device is used for simulating the dynamic change of a real sand storm so as to test the sealing performance of a sample from multiple angles. According to the utility model, through the circulating pipeline system, the sample rotating table with the adjustable angle, accurate wind speed control and real particle distribution simulation, the sealing performance of the sample is tested at multiple angles, and the dynamic change of a sand storm is simulated more truly, so that the sand dust test which is more strict and close to the reality is carried out on the sample.

The invention discloses an infrared weak and small target detection method based on multi-frame interactive perception, and the method comprises the steps: 1, carrying out the preprocessing of an infrared sequence image, and avoiding the overfitting in a training process; 2, constructing a time sequence feature extraction module for continuous multi-frame images; 3, constructing a feature interaction perception module with a U-shaped structure; 4, establishing a loss function between a result obtained after the infrared image of the current frame passes through the prediction module and the real binary image; and 5, training the network by using an infrared image, and detecting an infrared weak and small target by using the trained model. According to the method, the spatial-temporal information of the target is obtained by using multiple frames of images, and cross-level information fusion is realized, so that the accuracy of infrared weak and small target detection can be improved, and the capturing capability of a fast moving small target is particularly enhanced.

The invention provides a signal lamp synchronization method and device, processing equipment, a program product and a medium, and relates to the technical field of Internet of Vehicles, the method comprises the following steps: obtaining signal lamp configuration information of a simulated traffic environment and mapping relation information between the simulated traffic environment and a real traffic environment, testing a signal phase and time sequence SPAT message of a real intersection received by the vehicle in a real traffic environment; according to the signal lamp configuration information, the mapping relation information and the SPAT message, determining a signal lamp group state of a simulation intersection corresponding to the real intersection; updating the simulated traffic environment according to the signal lamp group state corresponding to the simulated intersection so as to realize signal lamp synchronization between the simulated traffic environment and the real traffic environment; the simulated traffic environment is a traffic flow model which is established in simulation software and is used for simulating a real traffic environment. According to the scheme, the problem that the simulation world signal lamp and the real world signal lamp are difficult to accurately synchronize in the prior art is solved.

The invention relates to the technical field of integrated circuit chip testing, in particular to an integrated circuit chip testing tool which comprises a testing seat, a testing device used for a multi-axis vibration detection plate and a chip is installed at the upper end of the testing seat, and a protection device used for installing the chip and preventing the chip from loosening is installed on the testing device. The chip vibration testing device is used for conducting vibration testing on a chip, it can be ensured that the chip is completely inserted into the testing plate, then electrical contact between the chip and the testing plate is ensured, the accuracy of a chip vibration detection result is improved, the chip inserted into the testing plate can be fixed, and the chip vibration testing device is convenient to use. According to the chip vibration testing device, the chip is prevented from loosening and falling off when the chip is subjected to vibration testing, the vibration detection efficiency of the chip is improved, meanwhile, multi-axis vibration detection can be carried out on the chip, the vibration condition of the chip in actual use is simulated, and the performance and reliability of the chip in actual use can be evaluated more comprehensively.

The invention discloses a printed circuit board defect online full-automatic detection method and system based on data analysis, relates to the technical field of printed circuit board performance testing, and realizes comprehensive evaluation of circuit board performance through steps 1 to 4. By configuring a test system and setting test conditions, accurate installation and debugging of each test module are ensured; a power supply stability index Dyw, a power supply switching fault-tolerant index Qhrc, a thermal stress index Ryl, a mechanical stress index Mvz, an electromagnetic compatibility index Jrx, a resource contention index Zyzq and a self-repairing index Xfz are calculated, a comprehensive evaluation index Pc is obtained through associated calculation, performance evaluation is carried out, and whether the circuit board is qualified or not is effectively judged. And when the comprehensive evaluation index Pc is lower than a first performance threshold value X, generating a performance disqualification label, and performing in-depth grading evaluation through a second multi-stage evaluation module, thereby promoting identification of specific performance defects.

The invention discloses a bearing steel ball strength multi-point testing device, and relates to the technical field of strength testing, the bearing steel ball strength multi-point testing device comprises a base, a hydraulic rod fixedly mounted above the base, a connecting plate fixedly connected to the telescopic end of the hydraulic rod, and a dynamic pressurizing mechanism comprising a motor fixedly mounted in the base, a driving shaft of the motor is fixedly connected with an inner bearing table rotationally connected with the base, a pressing plate and a positioning part used for preventing the steel balls from moving are arranged below the connecting plate, the positioning part comprises positioning rings hooped outside the steel balls, and the twelve positioning rings are arranged in a circumferential array around the center point of the inner bearing table; the inner bearing table rotates to drive the steel ball in the pressurized state to roll, the rolling state of the steel ball in the actual bearing operation process is simulated, and compared with an existing static pressurization strength test, the test result is closer to the actual use condition, so that the performance of the steel ball in the actual working environment is evaluated more accurately.

The invention discloses a wireless charging magnetic coupler comprehensive evaluation method comprising the following steps: S1, obtaining a maximum mutual inductance, a maximum anti-offset distance and a mutual inductance standard deviation through a first obtaining channel, the maximum mutual inductance and the mutual inductance standard deviation having a function relationship, the performance indexes of the magnetic coupler are jointly determined by the three performance indexes of the maximum mutual inductance, the maximum anti-offset distance and the mutual inductance standard deviation; s2, correspondingly calculating weights corresponding to the maximum mutual inductance, the maximum anti-offset distance and the mutual inductance standard deviation according to the maximum value of the performance index of the magnetic coupler; and S3, obtaining the maximum mutual inductance and the maximum anti-offset distance through the second obtaining channel, and obtaining the performance index of the magnetic coupler. According to the comprehensive evaluation method for the magnetic coupler, the coupling strength, the anti-offset capability and the magnetic field uniformity are comprehensively considered, the performance of the magnetic coupler can be comprehensively evaluated, the calculation process is simple, the expression form is direct, and a scientific basis is provided for design and optimization of the magnetic coupler.

The invention relates to the technical field of medicine capsule detection, in particular to a capsule medicine solubility detection device which comprises an obstacle module, a liquid pumping module, a vibrator, a constant temperature controller, a temperature sensor, a visual sensor and a central control assembly. The method comprises the following steps: analyzing each acid real-time image, performing primary judgment on a target capsule medicine according to an analysis result to determine whether to start a disturbance mode, and performing secondary judgment on the target capsule medicine based on the disturbance mode to obtain a secondary judgment result; determining whether to perform second-class detection on the target capsule medicine or not according to the secondary judgment result; receiving each alkalinity real-time image monitored by the visual sensor in real time in the second-class detection process; analyzing each alkalinity real-time image so as to judge the target capsule medicine for three times; based on the third judgment result, the central control assembly outputs a final detection report of the target capsule medicine in combination with the first judgment result and the second judgment result.

The invention discloses a method for measuring the rigidity of paired main bearings of an RV speed reducer. The method comprises the following steps of 1, customizing a bearing mounting tool according to the size of a bearing to be measured; step 2, inputting a test load spectrum and an axial measurement load on the measurement controller; 3, completing the assembly of the bearing installation tool and the two to-be-tested bearings, and connecting a tool upper cover with the top platform; 4, rotating the tool spacer ring and driving the outer rings of the two to-be-tested bearings to rotate, and eliminating gaps between the ferrules of the two to-be-tested bearings and the rolling balls; step 5, applying an axial load to the two to-be-measured bearings until the axial load is consistent with the axial measurement load set on the measurement controller, thereby completing the preloading of the two to-be-measured bearings; step 6, calculating the assembly height of the paired bearings; and step 7, taking the numerical value of the assembly height of the paired bearings as an original point, continuously applying an axial load to the two to-be-tested bearings, and finally drawing a stress-displacement curve by using test data. The method is high in measurement efficiency.

The invention relates to the technical field of radio frequency microwave measurement, in particular to a tested piece harmonic test link and an active load traction system and method.The system comprises a control module and a test link. Determining a test signal value of the vector signal source in the test link and a phase adjustable signal value of the first adjustable phase vector signal source according to the target mismatch degree; then, a plurality of impedance points on the Smith chart are simulated by adjusting the amplitude and the phase of the first adjustable phase vector signal source, the vector signal source is controlled to send out a test signal value, and the first adjustable phase vector signal source is controlled to send out a phase adjustable signal value, so that a tested piece is tested; and finally, obtaining a harmonic value corresponding to each impedance point, and obtaining the maximum harmonic of the tested piece under the target mismatch degree according to the harmonic value corresponding to each impedance point. According to the invention, the impedance adjusting range and precision are higher, and the adjusting speed is higher.

The invention provides an innovative measurement characterization method which integrates X-ray computed tomography (X-CT) and low-field nuclear magnetic resonance (NMR) technologies and aims at comprehensively and accurately analyzing the pore structure of the cement paste. According to the method, nano-crystalline cellulose (CNF) is introduced into a cement-based material in multiple dispersion modes, after standard curing is conducted for 7 days, nondestructive testing is conducted through the X-CT technology, two-dimensional and three-dimensional distribution of pores is qualitatively shown, meanwhile, key parameters of micron-sized pores are accurately measured, and a support is provided for macroscopic understanding of the pore structure. Furthermore, in combination with a low-field nuclear magnetic resonance technology, quantitative evaluation of a nanoscale pore structure is realized, volume information and pore size distribution characteristics of nanoscale pores are accurately acquired, the defect of X-CT in nanoscale detection is overcome, and accurate testing in a full-pore-size range from a gel pore to a non-capillary pore is realized. The combination method not only covers comprehensive analysis from microcosmic scale to macroscopic scale, but also realizes accurate visualization, and provides a new view angle and methodology for scientific research of the pore structure of the cement-based material. The method is expected to promote the development of the field of cement-based material pore structures, and provides powerful technical support and a new research direction for deep research in the field.

The invention relates to a cab suspension control method, system and device and a storage medium, through a DQN model cab suspension control model and in combination with multi-mode input, namely, the input vehicle speed, the vertical vibration acceleration of four suspension points of a cab, the cab roll angle and the picture of the pavement in front of the vehicle; the optimal decision action about the vertical vibration acceleration and the cab roll angle of the four suspension points is output in a plurality of possible decisions, the suspension rigidity and damping are adjusted according to the optimal decision action, cab vibration is reduced, and the vertical vibration acceleration and the cab roll angle of the four suspension points are controlled at the same time; the driving comfort and the vehicle stability are improved; in addition, the suspension rigidity and damping are dynamically adjusted according to complex real-time road conditions and driving conditions, and the adaptability and robustness of the system are improved; the award function comprehensively considering the vibration acceleration and the roll angle of the cab is designed, the performance of the system can be comprehensively evaluated, control is accurate, and the optimization direction is guided.

The utility model provides a vehicle lamp detection circuit and a vehicle control system. The vehicle lamp detection circuit comprises a control module, M vehicle lamp test modules, M conduction driving modules, an operational amplification module and a conversion module, the control module is used for providing regulation and control signals to the vehicle lamp testing modules, providing conduction signals to the conduction driving module and feeding back the signals so as to judge whether the actual current values of the vehicle lamp testing modules are equal to preset current values corresponding to the regulation and control signals or not; each vehicle lamp test module receives the regulation and control signal to provide a corresponding preset current value, so that the correspondingly controlled vehicle lamp is turned on; each conduction driving module receives the conduction signal so as to output the actual current value of the corresponding vehicle lamp test module; and the operational amplification module and the conversion module are used for sampling and amplifying the output signal of the conduction driving module to obtain a feedback signal. The device is used for accurately measuring the current of the vehicle lamp in different working modes so as to evaluate the performance and the safety of the vehicle lamp.

The invention belongs to the field of battery testing, and particularly relates to a method for rapidly evaluating the performance of a silicon-carbon negative electrode material of a lithium ion battery, which comprises the following steps: (1) testing the specific surface area SA of a material to be tested; (2) carrying out a pressurization test on the material powder to be tested according to a set compaction density; (3) testing the specific surface area of the sample after pressure, and recording the specific surface area as SB; and (4) calculating the change value delta S = SB / SA-1 of the specific surface area of the sample before and after pressurization, and comparing the delta S with a reference value delta S0 to judge the material performance. The method has the advantages of simple sample treatment and test operation, convenience, rapidness and good feasibility, and can be used for rapidly evaluating the performance of the lithium ion battery silicon-carbon negative electrode material.