CN203310975U - A purely-electric vehicle driving system test board - Google Patents
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Abstract
本实用新型涉及一种纯电动汽车驱动系统测试台,用于对被测电机进行性能测试,测试台包括测功机、测功机控制器、被测电机控制器、主控制台及电池组,测功机通过飞轮组及转矩/转速传感器与被测电机连接;测功机控制器对测功机进行调节控制;被测电机控制器对被测电机进行调节控制;主控制台接收转矩/转速传感器传递的信号,并对该信号进行处理,实时控制测功机控制器与被测电机控制器的运行;电池组为测功机控制器及被测电机控制器充电。与现有技术相比,本实用新型能够模拟各种路况下的行驶阻力以及汽车惯性、可以完整的测试电动汽车牵引电机和动力电池组的性能。
The utility model relates to a pure electric vehicle drive system test bench, which is used for performance testing of a motor under test. The test bench includes a dynamometer, a dynamometer controller, a motor controller under test, a main console and a battery pack. The dynamometer is connected to the motor under test through the flywheel group and the torque/speed sensor; the controller of the dynamometer regulates and controls the dynamometer; the controller of the motor under test regulates and controls the motor under test; the main console receives the torque / The signal transmitted by the speed sensor, and the signal is processed to control the operation of the dynamometer controller and the motor controller under test in real time; the battery pack charges the dynamometer controller and the motor controller under test. Compared with the prior art, the utility model can simulate the driving resistance and the inertia of the vehicle under various road conditions, and can completely test the performance of the traction motor and the power battery pack of the electric vehicle.
Description
技术领域technical field
本实用新型涉及电动汽车电机测试领域,尤其是涉及一种纯电动汽车驱动系统测试台。The utility model relates to the field of electric vehicle motor testing, in particular to a pure electric vehicle driving system testing platform.
背景技术Background technique
电动汽车研发过程中的一些关键技术,尤其是电动机及控制系统作为电动汽车四大关键技术之一,其性能试验更需要在测试台上完成,而电动汽车测试台恰恰提供了一个解决上述关键技术的研究平台。目前电动汽车的研发主要通过计算机仿真、室内台架试验和室外道路实车试验三种方式进行。计算机仿真有适应性强、费用低、开发周期短等优点,但受动力系统复杂的数学模型制约,难以得到准确结果,仿真结果的可信性、可用性必须通过其它途径来检验。室外道路实车试验能够为开发对象提供真实的运行环境,但成本高、适应性差、测试和调节难度大。而室内台架试验有不受外界自然环境限制的优点,它的零部件的布置可以不受整车总布置的限制,试验台的模块化还可以为不同类型的电机及其控制器、蓄电池及其管理模块以及整车控制器等提供所需的试验环境。电动汽车驱动系统测试平台的最终建立,可以全面检测电动汽车整车控制目标,并能更好地解决制约电动汽车发展的问题,从而缩短整车试验和标定的试验周期,降低电动汽车研制的风险和成本,我国电动汽车测试平台研究已取得了一定的成就,但仍存在种种不足,所以很有必要研制一款功能完善、测量精度高、性价比合理的电动汽车车用驱动系统性能测试平台。Some key technologies in the research and development of electric vehicles, especially the electric motor and control system as one of the four key technologies of electric vehicles, its performance test needs to be completed on the test bench, and the electric vehicle test bench just provides a solution to the above key technologies. research platform. At present, the research and development of electric vehicles is mainly carried out in three ways: computer simulation, indoor bench test and outdoor road real vehicle test. Computer simulation has the advantages of strong adaptability, low cost, and short development cycle. However, it is difficult to obtain accurate results due to the constraints of complex mathematical models of power systems. The reliability and usability of simulation results must be tested by other means. The outdoor road real vehicle test can provide a real operating environment for the development object, but the cost is high, the adaptability is poor, and the test and adjustment are difficult. The indoor bench test has the advantage of not being restricted by the external natural environment. The layout of its components can not be limited by the overall layout of the vehicle. The modularization of the test bench can also be used for different types of motors and their controllers, batteries and Its management module and vehicle controller provide the required test environment. The final establishment of the electric vehicle drive system test platform can comprehensively detect the control target of the electric vehicle, and can better solve the problems that restrict the development of electric vehicles, thereby shortening the test cycle of vehicle testing and calibration, and reducing the risk of electric vehicle development and cost, my country's electric vehicle test platform research has made some achievements, but there are still various deficiencies, so it is necessary to develop a performance test platform for electric vehicle drive system with complete functions, high measurement accuracy and reasonable cost performance.
实用新型内容Utility model content
本实用新型的目的就是为了克服上述现有技术存在的缺陷而提供一种纯电动汽车驱动系统测试台,该测试台能够模拟各种路况下的行驶阻力以及汽车惯性、可以完整的测试电动汽车牵引电机和动力电池组的性能。The purpose of this utility model is to provide a pure electric vehicle drive system test bench in order to overcome the above-mentioned defects in the prior art. The test bench can simulate driving resistance and vehicle inertia under various road conditions, and can completely test electric vehicle traction The performance of the motor and power battery pack.
本实用新型的目的可以通过以下技术方案来实现:The purpose of this utility model can be achieved through the following technical solutions:
一种纯电动汽车驱动系统测试台,对被测电机进行性能测试,所述的测试台包括:A pure electric vehicle drive system test bench is used to perform performance tests on the motor under test, and the test bench includes:
测功机:通过飞轮组及转矩/转速传感器与被测电机连接;Dynamometer: connected to the motor under test through a flywheel set and a torque/rotational speed sensor;
测功机控制器:与测功机连接,对测功机进行调节控制;Dynamometer controller: connected with the dynamometer to adjust and control the dynamometer;
被测电机控制器:与被测电机连接,对被测电机进行调节控制;The motor controller under test: connect with the motor under test, and regulate and control the motor under test;
主控制台:分别与测功机控制器、被测电机控制器及转矩/转速传感器连接,接收转矩/转速传感器传递的信号,并对该信号进行处理,实时控制测功机控制器与被测电机控制器的运行;Main console: respectively connected with the dynamometer controller, the motor controller under test and the torque/speed sensor, receives the signal transmitted by the torque/speed sensor, and processes the signal, and controls the dynamometer controller and the torque sensor in real time. Operation of the motor controller under test;
电池组:分别与测功机控制器及被测电机控制器连接,为测功机控制器及被测电机控制器充电。Battery pack: respectively connected to the dynamometer controller and the motor controller under test to charge the dynamometer controller and the motor controller under test.
所述的测功机、飞轮组、转矩/转速传感器及被测电机之间均通过传动轴与联轴器连接。The dynamometer, the flywheel group, the torque/rotational speed sensor and the motor under test are all connected with a shaft coupling through a transmission shaft.
所述的转矩/转速传感器依次通过信号调理单元及数据采集卡与主控制台连接。The torque/speed sensor is connected to the main console through a signal conditioning unit and a data acquisition card in turn.
所述的电池组通过电池充电机进行充电。The battery pack is charged by a battery charger.
测功机和被测电机之间用传动轴连接,测功机和被测电机中间安装有飞轮组,用于模拟电动汽车道路行驶过程中的各种行驶惯性。电池组为测功机控制器及被测电机控制器充电,电池组通过电池充电机进行充电,同时,被测电机的再生制动能量能够回馈到电池组实现能量的循环利用。当被测电机做电动运行,测功机运行在发电模式,其发出的电能反馈给电池组,测功机回馈的电能与电池组共同作为被测电机的能量源,形成了能量回馈;当被测电机做发电运行,测功机拖动被测电机运转,被测电机发出的电能反馈回到电池组,被测电机回馈的电能与电池组共同作为测功机的能量源,实现了能量回馈。飞轮组和被测电机中间设有的转矩/转速传感器,用于实时监控被测电机的运行状态,信息通过信号调理单元及数据采集卡送到主控制台,各设备均受主控制台统一管理控制。The dynamometer and the motor under test are connected by a transmission shaft, and a flywheel set is installed between the dynamometer and the motor under test to simulate various driving inertias of the electric vehicle during road driving. The battery pack charges the dynamometer controller and the tested motor controller, and the battery pack is charged by the battery charger. At the same time, the regenerative braking energy of the tested motor can be fed back to the battery pack to realize energy recycling. When the motor under test is in electric operation and the dynamometer runs in the power generation mode, the electric energy it sends out is fed back to the battery pack, and the electric energy fed back by the dynamometer and the battery pack are used as the energy source of the motor under test to form energy feedback; The motor under test is used for power generation operation, the dynamometer drives the motor under test to run, the electric energy sent by the motor under test is fed back to the battery pack, and the electric energy fed back by the motor under test and the battery pack are used as the energy source of the dynamometer to realize energy feedback . The torque/speed sensor installed between the flywheel group and the motor under test is used to monitor the running status of the motor under test in real time. The information is sent to the main console through the signal conditioning unit and the data acquisition card, and all devices are unified by the main console. management control.
本测试台分为电机及其控制器测试模块、整车平移惯量模拟模块、负荷模拟模块、能源管理模块和数据采集模块。电机及其控制器测试模块用于测试电机及其控制系统的性能,完成电动汽车的起步试验、动力性试验、再生制动试验、经济性和续驶里程试验;整车平移惯量模拟及其控制模块用于针对不同质量的电动汽车,采用对应的惯性模拟当量,使得试验台架具有较广的应用范围;负荷模拟及其控制模块用于模拟电动汽车道路行驶过程中的各种行驶阻力,使台架试验能够真实地反映汽车的道路运行状况;能源管理及其控制模块用于实现蓄电池的性能测试,能够完成电动汽车的制动能量回收;数据采集模块用于对测试过程中的电机速度、变速器档位、气阀工作状态等的数据进行实时的监控,以便在上位机对系统进行合理的调整和控制。The test bench is divided into a motor and its controller test module, a vehicle translational inertia simulation module, a load simulation module, an energy management module and a data acquisition module. The motor and its controller test module is used to test the performance of the motor and its control system, and complete the start-up test, power test, regenerative braking test, economy and mileage test of the electric vehicle; the vehicle translational inertia simulation and its control The module is used for electric vehicles of different qualities, using the corresponding inertia simulation equivalent, so that the test bench has a wider range of applications; the load simulation and its control module is used to simulate various driving resistances during the road driving of electric vehicles, so that The bench test can truly reflect the road operation status of the car; the energy management and its control module are used to realize the performance test of the battery, and can complete the braking energy recovery of the electric vehicle; the data acquisition module is used to monitor the motor speed, Real-time monitoring of transmission gear position, air valve working status and other data, in order to adjust and control the system reasonably on the host computer.
与现有技术相比,本实用新型具有以下优点及有益效果:Compared with the prior art, the utility model has the following advantages and beneficial effects:
本实用新型的测试台能够模拟各种路况下的行驶阻力以及汽车惯性,可以完整的测试电动汽车牵引电机和动力电池组的性能,满足电动汽车动力系统全部功率范围内精确加载测试及动力电池组放电性能测试的需要。该测试台对测试过程中的被测电机的速度、变速器档位、气阀工作状态等的数据进行实时的监控,能够完成电动汽车的制动能量回收,电动汽车的起步试验、动力性试验、再生制动试验、经济性和续驶里程试验。The test bench of the utility model can simulate driving resistance and vehicle inertia under various road conditions, can completely test the performance of electric vehicle traction motors and power battery packs, and can meet the requirements of accurate loading tests and power battery packs within the entire power range of electric vehicle power systems. Discharge performance test needs. The test bench monitors the speed of the motor under test, the gear position of the transmission, the working state of the air valve, etc. Regenerative braking test, economy and driving range test.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图中:1为测功机,2为被测电机,3为飞轮组,4为转矩/转速传感器,5为联轴器,6为传动轴,7为信号调理单元,8为数据采集卡,9为主控制台,10为被测电机控制器,11为测功机控制器,12为电池组,13为电池充电机。In the figure: 1 is the dynamometer, 2 is the motor under test, 3 is the flywheel group, 4 is the torque/speed sensor, 5 is the coupling, 6 is the transmission shaft, 7 is the signal conditioning unit, 8 is the data acquisition card , 9 is the main console, 10 is the motor controller under test, 11 is the dynamometer controller, 12 is the battery pack, and 13 is the battery charger.
具体实施方式Detailed ways
下面结合附图和具体实施例对本实用新型进行详细说明。The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
实施例Example
一种纯电动汽车驱动系统测试台,如图1所示,对被测电机2进行性能测试,测试台包括测功机1、测功机控制器11、被测电机控制器10、主控制台9及电池组12,测功机1通过飞轮组3及转矩/转速传感器4与被测电机2连接,测功机1、飞轮组3、转矩/转速传感器4及被测电机2之间均通过传动轴6与联轴器5连接。测功机控制器11与测功机1连接,对测功机1进行调节控制;被测电机控制器10与被测电机2连接,对被测电机2进行调节控制;主控制台9分别与测功机控制器11、被测电机控制器10及转矩/转速传感器4连接,转矩/转速传感器4依次通过信号调理单元7及数据采集卡8与主控制台9连接,主控制台9接收转矩/转速传感器4传递的信号,并对该信号进行处理,实时控制测功机控制器11与被测电机控制器10的运行;电池组12分别与测功机控制器11及被测电机控制器10连接,为测功机控制器11及被测电机控制器10充电。电池组12通过电池充电机13进行充电。A pure electric vehicle drive system test bench, as shown in Figure 1, performs a performance test on the motor under test 2, and the test bench includes a dynamometer 1, a dynamometer controller 11, a motor controller under test 10, and a main console 9 and the battery pack 12, the dynamometer 1 is connected to the motor 2 to be tested through the flywheel 3 and the torque/speed sensor 4, and the dynamometer 1, the flywheel 3, the torque/speed sensor 4 and the motor 2 to be tested Both are connected with the shaft coupling 5 through the transmission shaft 6 . The dynamometer controller 11 is connected with the dynamometer 1 to regulate and control the dynamometer 1; the tested motor controller 10 is connected to the tested motor 2 to regulate and control the tested motor 2; the main console 9 is connected to the The dynamometer controller 11, the motor controller 10 under test and the torque/speed sensor 4 are connected, and the torque/speed sensor 4 is connected with the main console 9 through the signal conditioning unit 7 and the data acquisition card 8 in turn, and the main console 9 Receive the signal transmitted by the torque/speed sensor 4, and process the signal, and control the operation of the dynamometer controller 11 and the motor controller 10 under test in real time; The motor controller 10 is connected to charge the dynamometer controller 11 and the motor controller 10 under test. The battery pack 12 is charged by a battery charger 13 .
测功机1和被测电机2中间安装的飞轮组3用于模拟电动汽车道路行驶过程中的各种行驶惯性。电池组12为测功机控制器11及被测电机控制器10充电,电池组12通过电池充电机13进行充电,同时,被测电机2的再生制动能量能够回馈到电池组12实现能量的循环利用。当被测电机2做电动运行,测功机1运行在发电模式,其发出的电能反馈给电池组12,测功机1回馈的电能与电池组12共同作为被测电机2的能量源,形成了能量回馈;当被测电机2做发电运行,测功机1拖动被测电机2运转,被测电机2发出的电能反馈回到电池组12,被测电机2回馈的电能与电池组12共同作为测功机1的能量源,实现了能量回馈。飞轮组3和被测电机2中间设有的转矩/转速传感器4,用于实时监控被测电机2的运行状态,信息通过信号调理单元7及数据采集卡8送到主控制台9,各设备均受主控制台9统一管理控制。The flywheel set 3 installed between the dynamometer 1 and the motor under test 2 is used to simulate various driving inertias during road driving of the electric vehicle. The battery pack 12 charges the dynamometer controller 11 and the tested motor controller 10, the battery pack 12 is charged by the battery charger 13, and at the same time, the regenerative braking energy of the tested motor 2 can be fed back to the battery pack 12 to realize energy recovery. Recycling. When the motor under test 2 performs electric operation, the dynamometer 1 operates in the power generation mode, and the electric energy it sends out is fed back to the battery pack 12, and the electric energy fed back by the dynamometer 1 and the battery pack 12 are jointly used as the energy source of the motor under test 2, forming energy feedback; when the motor under test 2 is running for power generation, the dynamometer 1 drives the motor under test 2 to run, the electric energy sent by the motor under test 2 is fed back to the battery pack 12, and the electric energy fed back by the motor under test 2 is the same as that of the battery pack 12 Together as the energy source of the dynamometer 1, energy feedback is realized. The torque/speed sensor 4 that is provided with in the middle of the flywheel group 3 and the tested motor 2 is used for real-time monitoring of the running state of the tested motor 2, and the information is sent to the main console 9 through the signal conditioning unit 7 and the data acquisition card 8, each The equipment is all subject to the unified management and control of the main console 9 .
本测试台中的测功机1代替车轮,进行加载力矩,由飞轮组3模拟车辆的惯性阻力,通过转矩/转速传感器4实时监测试验台上被测电机2运行的状况,然后根据被测电机2的转矩转速、以及模拟行驶的道路坡度和汽车的参数等计算出汽车行驶过程中所受到的各种阻力,来控制测功机1施加给被测电机2的制动转矩,起到实时模拟行驶阻力的作用。The dynamometer 1 in this test bench replaces the wheels to carry out the loading torque, and the inertial resistance of the vehicle is simulated by the flywheel group 3, and the running condition of the motor 2 under test on the test bench is monitored in real time through the torque/rotational speed sensor 4, and then according to the 2 torque speed, as well as the simulated driving road gradient and the parameters of the car, etc. to calculate the various resistances encountered by the car during driving, to control the braking torque applied by the dynamometer 1 to the motor 2 under test. Simulates the effect of driving resistance in real time.
本测试台主控制台9上位机采用LabVIEW软件开发,用于控制整个测试过程中电机设备的运行,除了具有自动绘制转矩转速特性曲线等一般功能,还可以根据设定的速度曲线,计算力矩控制信号控制,模拟各种负载状态,实现动态测试,能够动态模拟汽车在各种速度、路况、操作情况下的负载。The main console 9 host computer of the test bench is developed with LabVIEW software, which is used to control the operation of the motor equipment during the entire test process. In addition to the general functions such as automatic drawing of torque and speed characteristic curves, it can also calculate the torque according to the set speed curve. Control signal control, simulate various load states, realize dynamic test, and can dynamically simulate the load of the car under various speeds, road conditions, and operating conditions.
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