摘要：【中文】本发明属于数据查询与数据分析技术领域，并具体公开了一种针对产品研究进展的图形式查询方法及其应用。该方法包括如下步骤：建立存储多维度技术体系的数据库，分别用于存储不同类型的技术信息；设定技术成熟度的划分标准，对存储的技术信息进行成熟度评级；以单个产品为载体，记录并存储其生产过程中使用的技术，使得产品与数据库中的技术信息相关联；在数据库中建立信息查询筛选机制，用户设置查询参数后即可获得待查询产品的研究进展。本发明能够方便客户利用产品作为载体对各项技术进行筛选查询，并且筛选查询方式更加多样化，可以根据实际需求自由设定筛选条件，从而获得待查询产品的研究进展，避免出现技术信息错漏的问题。 【EN】The invention belongs to the technical field of data query and data analysis, and particularly discloses a graphic query method aiming at product research progress and application thereof. The method comprises the following steps: establishing a database for storing a multi-dimensional technical system, wherein the database is respectively used for storing different types of technical information; setting a division standard of technology maturity, and grading the maturity of the stored technical information; recording and storing technologies used in the production process of a single product by taking the single product as a carrier, so that the product is associated with the technical information in the database; an information query screening mechanism is established in a database, and the research progress of the product to be queried can be obtained after a user sets query parameters. The invention can facilitate the client to use the product as a carrier to screen and query various technologies, has more diversified screening and querying modes, and can freely set screening conditions according to actual requirements, thereby obtaining the research progress of the product to be queried and avoiding the problem of technical information error and leakage.

摘要：【中文】本发明属于计算机图形学和统计学领域，并具体公开了一种结合工艺参数的铸件三维特征提取和相似性度量方法，包括S1将待匹配铸件模型和模型库中的模型进行初步匹配，从而从模型库中选取数个模型作为初步匹配模型；S2获取每个初步匹配模型和待匹配铸件模型的整体模数、平均壁厚、最大壁厚，分别计算每个初步匹配模型与待匹配铸件模型的整体模数距离值、平均壁厚距离值、最大壁厚距离值；S3分别计算每个初步匹配模型与待匹配铸件模型的加权距离值，对初步匹配模型进行再次排序，从而确定最终匹配模型。本发明结合铸件工艺参数完成铸件模型的相似性度量，解决了现有匹配方法对模型尺度的变化不敏感、个别模型不能区分的缺陷，匹配效果好。 【EN】The invention belongs to the field of computer graphics and statistics, and particularly discloses a casting three-dimensional feature extraction and similarity measurement method combining process parameters, which comprises the steps of S1, carrying out primary matching on a casting model to be matched and models in a model library, and selecting a plurality of models from the model library as primary matching models; s2, acquiring the integral modulus, the average wall thickness and the maximum wall thickness of each primary matching model and the casting model to be matched, and respectively calculating the integral modulus distance value, the average wall thickness distance value and the maximum wall thickness distance value of each primary matching model and the casting model to be matched; s3, respectively calculating the weighted distance value between each preliminary matching model and the casting model to be matched, and sequencing the preliminary matching models again to determine the final matching model. The method disclosed by the invention is used for completing the similarity measurement of the casting model by combining the casting process parameters, so that the defects that the conventional matching method is insensitive to the change of the model scale and individual models cannot be distinguished are overcome, and the matching effect is good.

摘要：【中文】本发明涉及纯电动车台架试验技术领域，尤其涉及一种电动车动力总成台架试验系统。所述系统包括控制模块，用于根据路谱信息生成目标力矩信号，并发送目标力矩信号至驱动模块；驱动模块，用于接收目标力矩信号，并根据目标力矩信号进行力矩输出，以驱动负载电机模块工作；负载电机模块，用于接收驱动模块的输出力矩，并受输出力矩驱动而进行发电，将发电产生的电能输出到回收电池；回收电池，用于接收并储存电能。本发明通过上述系统，模拟整车在实际路况下的运行工况，根据整车行驶速度实时调整负载大小，逼真模拟了整车的行驶阻力与车速的变化关系，把测试过程中的电能储存起来，充分回收利用电能，节省开发成本。 【EN】The invention relates to the technical field of pure electric vehicle bench tests, in particular to an electric vehicle power assembly bench test system. The system comprises a control module, a driving module and a control module, wherein the control module is used for generating a target torque signal according to road spectrum information and sending the target torque signal to the driving module; the driving module is used for receiving the target torque signal and outputting torque according to the target torque signal so as to drive the load motor module to work; the load motor module is used for receiving the output torque of the driving module, generating power under the drive of the output torque and outputting the electric energy generated by the power generation to the recovery battery; the recovery battery is used for receiving and storing electric energy. The invention simulates the running condition of the whole vehicle under the actual road condition through the system, adjusts the load size in real time according to the running speed of the whole vehicle, realistically simulates the change relation between the running resistance of the whole vehicle and the vehicle speed, stores the electric energy in the test process, fully recycles the electric energy and saves the development cost.

摘要：【中文】本发明涉及汽车抖动检测技术领域，尤其涉及一种电动车抖动检测方法、装置、电子设备及存储介质。所述方法包括：获取电动车行驶时的报文数据，根据电机扭矩与制动开关信号对报文数据进行区段划分；按照曲线选取条件在区段内选取目标转速曲线；按照最小二乘法对目标转速曲线进行拟合，并获得目标转速曲线的第一拟合函数；获取目标转速曲线中每个时间点对应的转速值与第一拟合函数的平方差，获取区段内所有转速值与第一拟合函数的转速均方差；在转速均方差大于等于预设转速均方差时，根据均方差对电动车的电机转速进行修正。通过上述方法，实现了针对电动车特点对电动车抖动的进行检测并修正。 【EN】The invention relates to the technical field of automobile shake detection, in particular to a method and a device for detecting shake of an electric vehicle, electronic equipment and a storage medium. The method comprises the following steps: acquiring message data when the electric vehicle runs, and performing section division on the message data according to the motor torque and the brake switch signal; selecting a target rotating speed curve in the section according to curve selection conditions; fitting the target rotating speed curve according to a least square method, and obtaining a first fitting function of the target rotating speed curve; acquiring the square difference between the rotating speed value corresponding to each time point in the target rotating speed curve and the first fitting function, and acquiring the rotating speed mean square difference between all the rotating speed values in the section and the first fitting function; and when the mean square error of the rotating speed is larger than or equal to the preset mean square error of the rotating speed, correcting the rotating speed of the motor of the electric vehicle according to the mean square error. By the method, the shake of the electric vehicle is detected and corrected according to the characteristics of the electric vehicle.

摘要：【中文】本发明属于电机驱动控制技术领域，公开了一种电机驱动控制方法、装置、设备及存储介质。该方法包括接收车辆的油门踏板信号，获取油门踏板信号下车辆的电机转速与目标功率的对应关系；根据油门踏板信号下车辆的电机转速与目标功率的对应关系生成车辆的转速功率曲线；对转速功率曲线进行优化，以获得优化后的转速功率曲线；根据优化后的转速功率曲线生成目标功率映射表；根据目标功率映射表进行电机驱动。通过上述方式，目标功率映射表可以直接用于整车控制器驱动电机，同时还可以应用于在任何油门开度及任何电机转速情况下的电机驱动前进阶段，解决了现有技术电机驱动控制不准确导致整车经济性不高及电池损耗的技术问题。 【EN】The invention belongs to the technical field of motor drive control, and discloses a motor drive control method, a motor drive control device, motor drive control equipment and a storage medium. The method comprises the steps of receiving an accelerator pedal signal of a vehicle, and obtaining the corresponding relation between the motor rotating speed of the vehicle and target power under the accelerator pedal signal; generating a rotating speed power curve of the vehicle according to the corresponding relation between the rotating speed of the motor of the vehicle and the target power under the signal of the accelerator pedal; optimizing the rotating speed power curve to obtain an optimized rotating speed power curve; generating a target power mapping table according to the optimized rotating speed power curve; and driving the motor according to the target power mapping table. Through the mode, the target power mapping table can be directly used for driving the motor of the vehicle controller, and can also be applied to the motor driving advancing stage under the conditions of any accelerator opening and any motor rotating speed, so that the technical problems of low vehicle economy and battery loss caused by inaccurate motor driving control in the prior art are solved.

摘要：【中文】本发明涉及电动汽车充电技术领域，尤其涉及一种电池充电管理方法、装置、终端设备及存储介质。所述方法包括：检测电池电量及电池电芯温度；在所述电芯温度小于第一预设温度且所述电池电量为未充满时，对电池电芯进行加热；在所述电芯温度大于等于所述第一预设温度时，停止对所述电池电芯进行加热，并对所述电池充电；在所述电芯温度大于第二预设温度时，停止对所述电池充电。上述方法实现了在低温情况所述动力电池不适于充电时，加热所述动力电池，提升充电效率；在高温情况下，停止为所述动力电池充电，保护了所述动力电池的安全，避免了电池温度过高导致的电芯损坏。 【EN】The invention relates to the technical field of electric vehicle charging, in particular to a battery charging management method and device, terminal equipment and a storage medium. The method comprises the following steps: detecting the electric quantity of the battery and the temperature of a battery core; when the temperature of the battery core is lower than a first preset temperature and the battery is not fully charged, heating the battery core; when the cell temperature is greater than or equal to the first preset temperature, stopping heating the battery cell, and charging the battery; and when the cell temperature is higher than a second preset temperature, stopping charging the battery. The method realizes that the power battery is heated when the power battery is not suitable for charging under the low-temperature condition, so that the charging efficiency is improved; under the high temperature condition, stop to for power battery charges, protected power battery's safety, avoided the electric core damage that the battery temperature is too high leads to.

摘要：【中文】本发明属于图像滤波领域，并具体公开了一种用于金相图像平滑去噪的多级中值滤波方法，包括如下步骤：S1在金相图像上以某个像素为中心像素取数个滤波区间，获取各滤波区间内像素灰度值集合；S2分别计算各滤波区间的像素灰度值方差，以像素灰度值方差最小的滤波区间为最佳滤波区间；S3以最佳滤波区间对中心像素进行中值滤波，然后以该中心像素遍历金相图像中的每个像素完成金相图像的平滑去噪。本发明为普碳钢金相图像的平滑去噪提供了一种滤波方法，在去除噪音等干扰信号的同时，较为完整地保护了金相图像中的边界，提高了后续金相识别工作的准确度。 【EN】The invention belongs to the field of image filtering, and particularly discloses a multistage median filtering method for smooth denoising of a metallographic image, which comprises the following steps: s1, taking a plurality of filtering intervals on the metallographic image by taking a certain pixel as a central pixel, and acquiring a pixel gray value set in each filtering interval; s2, respectively calculating the variance of the pixel gray value of each filtering interval, and taking the filtering interval with the minimum variance of the pixel gray value as the optimal filtering interval; s3, median filtering is carried out on the central pixel by the optimal filtering interval, and then the central pixel traverses each pixel in the metallographic image to finish smooth denoising of the metallographic image. The invention provides a filtering method for smooth denoising of the metallographic image of the plain carbon steel, which can remove noise and other interference signals, more completely protect the boundary in the metallographic image and improve the accuracy of subsequent metallographic identification work.

摘要：【中文】本发明属于新能源汽车技术领域，公开了一种车辆动力匹配方法、装置、设备及存储介质，所述方法包括：获取目标车辆的性能指标，并获取目标车辆的运行工况，根据性能指标确定对应的多个电机参数值与多个电池参数值，将电机参数值与电池参数值进行组合，获得多个组合结果，将运行工况与各组合结果进行匹配，并获得与运行工况匹配的目标组合结果，将所述目标组合结果作为目标车辆的动力匹配方案，提高了电能利用率，降低了电能消耗率，从而有效地降低了单位载质量能量消耗量。 【EN】The invention belongs to the technical field of new energy automobiles, and discloses a vehicle power matching method, a device, equipment and a storage medium, wherein the method comprises the following steps: the method comprises the steps of obtaining a performance index of a target vehicle, obtaining an operation condition of the target vehicle, determining a plurality of corresponding motor parameter values and a plurality of corresponding battery parameter values according to the performance index, combining the motor parameter values and the battery parameter values to obtain a plurality of combination results, matching the operation condition with each combination result, obtaining a target combination result matched with the operation condition, and using the target combination result as a power matching scheme of the target vehicle, so that the electric energy utilization rate is improved, the electric energy consumption rate is reduced, and the energy consumption of unit load mass is effectively reduced.

摘要：【中文】本发明属于体内试验用的配制品技术领域，公开了一种大鼠肺部铜绿假单胞菌生物膜感染模型及其构建方法，大鼠常规麻醉后，大鼠鼻孔处于45度向上倾斜，将0.6mL菌液以微量加样器滴入鼻腔，大鼠体位保持直立位1min，菌液进入气管支气管。体外培养的铜绿假单胞菌生物膜结构，用调好浓度的细菌悬液放入六孔板内培养出生物膜结构；用细胞刮刮下来，震荡后变成小片的生物膜结构，检测调整细菌浓度。本发明提供的细菌生物膜结构真实稳定，重复性好，准备好的铜绿假单胞菌生物膜悬液采用滴鼻法造成大鼠的肺部感染，然后确定致病机制和干预治疗效果；动物模型更接近人体细菌生物膜肺部感染病理变化。 【EN】The invention belongs to the technical field of preparations for in vivo experiments, and discloses a rat lung pseudomonas aeruginosa biomembrane infection model and a construction method thereof. The in vitro cultured pseudomonas aeruginosa biomembrane structure is cultured by putting the adjusted bacterial suspension into a six-hole plate; scraping off with cells, vibrating to form a small biological membrane structure, and detecting and adjusting the bacterial concentration. The bacterial biofilm provided by the invention has a real and stable structure and good repeatability, the prepared pseudomonas aeruginosa biofilm suspension causes the lung infection of rats by adopting a nasal drip method, and then a pathogenic mechanism and an intervention treatment effect are determined; the animal model is closer to the pathological change of the infection of the lung part of the bacterial biofilm of the human body.