CN107179199A - A kind of Electric Motor Wheel comprehensive performance test simulation system - Google Patents
A kind of Electric Motor Wheel comprehensive performance test simulation system Download PDFInfo
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Abstract
Description
技术领域technical field
本发明属于纯电动车轮毂电机综合性能测试领域，尤其涉及一种电动轮综合性能试验模拟系统。The invention belongs to the field of comprehensive performance testing of pure electric wheel hub motors, and in particular relates to a simulation system for comprehensive performance testing of electric wheels.
背景技术Background technique
电动汽车产业的迅猛发展，尤其是对基于轮毂电机直驱技术的纯电动汽车市场需求的快速增长，使得电动轮及其综合性能试验台架的研发变得至关重要。为了测试不同工况，不同类型的电动车，缩短研发成本和周期，验证其可靠性好稳定性等，研发设计一种具有多功能、综合性的基于轮毂电机直驱技术的电动轮综合性能试验系统就很有必要。The rapid development of the electric vehicle industry, especially the rapid growth of market demand for pure electric vehicles based on in-wheel motor direct drive technology, makes the research and development of electric wheels and their comprehensive performance test benches very important. In order to test different working conditions and different types of electric vehicles, shorten the development cost and cycle, and verify its reliability and stability, a multifunctional and comprehensive electric wheel comprehensive performance test based on in-wheel motor direct drive technology was developed and designed. system is necessary.
发明内容Contents of the invention
本发明的目的在于研发一种具有多功能、综合性的电动轮综合性能试验模拟系统，比如在不同负载与不同路况下可测试电动轮的牵引性能、制动时的能量回馈比例和转向特性等。特点在于功能更加全面，而且各功能既可独立测控，也可耦合测控。目的是使研发的电动轮试验台架功能全面、控制方便、操作简洁，尤其是测试结果更接近真实工况。The purpose of the present invention is to develop a multifunctional and comprehensive electric wheel comprehensive performance test simulation system, such as testing the traction performance of the electric wheel, the energy feedback ratio during braking, and the steering characteristics, etc. under different loads and different road conditions. . The feature is that the functions are more comprehensive, and each function can be measured and controlled independently or coupled. The purpose is to make the developed electric wheel test bench have comprehensive functions, convenient control and simple operation, especially the test results are closer to the real working conditions.
本发明的目的通过以下技术方案实现：The object of the present invention is achieved through the following technical solutions:
一种电动轮综合性能试验模拟系统，包括控制系统模块和分别与其相连接的电能管理模块、电源模块、阻力及惯性模拟模块、制动能量回收模块、转速扭矩测量模块、道路模拟模块、转向及侧向力模拟模块、负载模拟模块、轮毂电机性能测试模块；A comprehensive performance test simulation system for electric wheels, including a control system module and an electric energy management module, a power supply module, a resistance and inertia simulation module, a braking energy recovery module, a rotational speed torque measurement module, a road simulation module, a steering and Lateral force simulation module, load simulation module, hub motor performance test module;
所述控制系统模块包括上位机，所述上位机通过测功机控制器与阻力及惯性模拟模块相连接，通过发电机控制器与制动能量回收模块相连接，通过加载电机控制器和转向控制器与电动轮相连接；The control system module includes a host computer, and the host computer is connected with the resistance and inertia simulation module through the dynamometer controller, connected with the braking energy recovery module through the generator controller, and connected with the motor controller and steering control The device is connected with the electric wheel;
所述转向及侧向力模拟模块包括与电动轮相连接的转向传感器、侧向力传感器，所述负载模拟模块包括与电动轮相连接的垂向压力传感器；The steering and lateral force simulation module includes a steering sensor and a lateral force sensor connected to the electric wheel, and the load simulation module includes a vertical pressure sensor connected to the electric wheel;
所述道路模拟模块采用与电动轮相连接的转鼓，所述道路模拟模块与转速扭矩测量模块、制动能量回收模块、阻力及惯性模拟模块依次相连接，所述转速扭矩测量模块通过转速扭矩信号装置与上位机相连接；所述制动能量回收模块与电源模块相连接。The road simulation module adopts a drum connected with the electric wheel, and the road simulation module is sequentially connected with the speed torque measurement module, the braking energy recovery module, the resistance and inertia simulation module, and the speed torque measurement module passes the speed torque measurement module. The signal device is connected with the upper computer; the braking energy recovery module is connected with the power module.
所述转速扭矩测量模块设置有转速扭矩测量仪，所述制动能量回收模块设置有直流发电机，所述阻力及惯性模拟模块设置有电涡流测功机，所述转速扭矩测量仪、直流发电机、电涡流测功机依次通过联轴器连接，所述转速扭矩测量仪在轴中间设置有转速扭矩传感器，通过转速扭矩传感器测量电动轮的转速、转矩能够计算出电动轮的工作性能。The speed and torque measurement module is provided with a speed and torque measuring instrument, the braking energy recovery module is provided with a DC generator, the resistance and inertia simulation module is provided with an eddy current dynamometer, the speed and torque measuring instrument, a DC generator The dynamometer and the eddy current dynamometer are sequentially connected by a coupling. The speed torque measuring instrument is provided with a speed torque sensor in the middle of the shaft, and the working performance of the electric wheel can be calculated by measuring the speed and torque of the electric wheel through the speed torque sensor.
所述轮毂电机性能测试模块设置有电机测控器，所述电机测控器与加载电机相连接，用于测试加载电机的基本参数，包括额定功率、额定扭矩、额定转速、额定电流、转动惯量、时间常数和扭矩常数。The in-wheel motor performance test module is provided with a motor controller, which is connected to the loading motor and used to test the basic parameters of the loading motor, including rated power, rated torque, rated speed, rated current, moment of inertia, time constant and torque constant.
所述转向及侧向力模拟模块包括侧向力传感器、转向传感器、转向机构、制动器，所述制动器与电动轮相连接，所述转向机构与侧向力传感器、转向传感器、制动器相连接，所述转向机构与主销相连接。The steering and lateral force simulation module includes a lateral force sensor, a steering sensor, a steering mechanism, and a brake. The brake is connected to an electric wheel, and the steering mechanism is connected to a lateral force sensor, a steering sensor, and a brake. The steering mechanism is connected with the kingpin.
所述负载模拟模块包括垂向加载机构，所述垂向加载机构设置有与主销相连接的垂向压力传感器，用于模拟汽车的重量，通过控制用于模拟加载的发电机负荷，加载作用于电动轮，模拟负载。The load simulation module includes a vertical loading mechanism, and the vertical loading mechanism is provided with a vertical pressure sensor connected to the kingpin for simulating the weight of the vehicle. By controlling the generator load used for simulating loading, the loading effect For the electric wheel, simulate the load.
所述垂向加载机构与加载电机相连接。The vertical loading mechanism is connected with the loading motor.
所述电源模块与电能管理模块相连接，所述电源模块包括蓄电池和三相电源。The power module is connected with the power management module, and the power module includes a storage battery and a three-phase power supply.
所述直流发电机通过电流综合控制台与蓄电池相连接，所述电流综合控制台与电源模块、电机测控器、上位机相连接。The direct current generator is connected with the storage battery through the integrated current console, and the integrated current console is connected with the power supply module, the motor measuring and controlling device, and the upper computer.
本发明在模拟测试时，通过在系统中输入调节各种相关参数，进行不同模块的测控，进而完成模拟测试。上述功能模块既可独立测控，也可耦合测控。本发明用于电动轮综合性能试验的模拟测试，功能全面，方便控制，操作简洁，测试结果更接近真实工况。During the simulation test, the invention performs measurement and control of different modules by inputting and adjusting various related parameters in the system, and then completes the simulation test. The above functional modules can be measured and controlled independently or coupled. The invention is used for the simulation test of the comprehensive performance test of the electric wheel, and has comprehensive functions, convenient control, simple operation, and the test result is closer to the real working condition.
附图说明Description of drawings
图1是本发明的电动轮综合性能试验模拟系统的简化示意图；Fig. 1 is the simplified schematic diagram of electric wheel comprehensive performance test simulation system of the present invention;
图2是本发明的图1的结构简化示意图；Fig. 2 is a simplified schematic diagram of the structure of Fig. 1 of the present invention;
图3是图1的工作流程简图。FIG. 3 is a schematic diagram of the workflow in FIG. 1 .
具体实施方式detailed description
下面结合附图和实施例对本发明作进一步详细的说明，但本发明的实施方式不限于此。The present invention will be described in further detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.
本发明的技术方案是：Technical scheme of the present invention is:
如图1所示，所述电动轮综合性能试验模拟系统包括控制系统模块和分别与其相连接的电能管理模块、电源模块、阻力及惯性模拟模块、制动能量回收模块、转速扭矩测量模块、道路模拟模块、转向及侧向力模拟模块、负载模拟模块、轮毂电机性能测试模块；As shown in Figure 1, the electric wheel comprehensive performance test simulation system includes a control system module and an electric energy management module, a power supply module, a resistance and inertia simulation module, a braking energy recovery module, a speed torque measurement module, a road Simulation module, steering and lateral force simulation module, load simulation module, hub motor performance test module;
所述控制系统模块包括上位机，所述上位机通过测功机控制器与阻力及惯性模拟模块相连接，通过发电机控制器与制动能量回收模块相连接，通过加载电机控制器和转向控制器与电动轮相连接；The control system module includes a host computer, and the host computer is connected with the resistance and inertia simulation module through the dynamometer controller, connected with the braking energy recovery module through the generator controller, and connected with the motor controller and steering control The device is connected with the electric wheel;
所述转向及侧向力模拟模块包括与电动轮相连接的转向传感器、侧向力传感器，所述负载模拟模块包括与电动轮相连接的垂向压力传感器；所述转速扭矩测量模块设置有转速扭矩测量仪；The steering and lateral force simulation module includes a steering sensor and a lateral force sensor connected to the electric wheel, and the load simulation module includes a vertical pressure sensor connected to the electric wheel; the rotational speed torque measurement module is provided with a rotational speed Torque measuring instrument;
所述道路模拟模块采用与电动轮相连接的转鼓，所述道路模拟模块与转速扭矩测量模块、制动能量回收模块、阻力及惯性模拟模块依次相连接，所述转速扭矩测量模块通过转速扭矩信号装置与上位机相连接；所述制动能量回收模块与电源模块相连接。The road simulation module adopts a drum connected with the electric wheel, and the road simulation module is sequentially connected with the speed torque measurement module, the braking energy recovery module, the resistance and inertia simulation module, and the speed torque measurement module passes the speed torque measurement module. The signal device is connected with the upper computer; the braking energy recovery module is connected with the power module.
所述电源模块包括蓄电池和三相电源，所述上位机通过电池综合控制台与蓄电池、三相电源相连接，所述电能管理模块与电源模块相连接，所述电流综合控制台与电机测控器相连接，所述电源模块和电机测控器相连接。The power module includes a storage battery and a three-phase power supply, the upper computer is connected to the storage battery and the three-phase power supply through the battery integrated console, the power management module is connected to the power supply module, and the current integrated console is connected to the motor controller connected, and the power module is connected with the motor controller.
所述制动能量回收模块通过电流反馈装置与电流综合控制台相连接。The braking energy recovery module is connected with the current integrated console through the current feedback device.
轮毂电机性能测试模块，用于测试轮毂电机最大(额定)功率、最大(额定)扭矩、最大(额定)转速、最大(额定)电流、转动惯量、时间常数和扭矩常数等基本参数。The hub motor performance test module is used to test the basic parameters of the hub motor such as maximum (rated) power, maximum (rated) torque, maximum (rated) speed, maximum (rated) current, moment of inertia, time constant and torque constant.
图2给出了一种电动轮综合性能试验系统的结构简化示意图，测控系统结合图2具体说明本发明的技术方案。Fig. 2 shows a simplified schematic diagram of the structure of an electric wheel comprehensive performance test system, and the measurement and control system specifically illustrates the technical solution of the present invention in conjunction with Fig. 2 .
电能管理模块，用来监控和显示剩余电量，及时发现电池故障，并采取相应措施，保障测试时蓄电池能够正常工作。The power management module is used to monitor and display the remaining power, detect battery faults in time, and take corresponding measures to ensure that the battery can work normally during the test.
电源模块提供需要的蓄电池和三项电源，给其他模块提供电源，通过电流综合控制台来调控交直流电和电流大小。The power supply module provides the required battery and three power supplies, provides power to other modules, and controls the AC, DC and current through the current integrated console.
控制系统模块用于实现对试验台的集中测试、调控和记录数据等功能。控制各个模块，通过传感器反馈的信号进一步调控各个模块的机构。The control system module is used to realize functions such as centralized testing, regulation and data recording of the test bench. Each module is controlled, and the mechanism of each module is further regulated through the signal fed back by the sensor.
阻力及惯性模拟模块，模拟汽车在行驶时受到的各种阻力。另外对于不同型号的电动汽车，质量不同，采用对应的惯性模拟当量。在上位机中输入各种阻力的参数和模拟当量，通过控制电涡流测功机14用来模拟汽车行驶中的阻力，比如空气阻力、爬坡阻力、从动轮的滚动阻力以及部分加速阻力。模拟汽车在道路上行驶时的惯性阻力也通过测功电机来模拟。本技术方案取消了飞轮装置，优化了结构，提高了测试精度。The resistance and inertia simulation module simulates various resistances encountered by the car while driving. In addition, for different types of electric vehicles, the mass is different, and the corresponding inertia simulation equivalent is used. Input the parameters and analog equivalents of various resistances in the host computer, and control the eddy current dynamometer 14 to simulate the resistance during driving, such as air resistance, climbing resistance, rolling resistance of driven wheels and partial acceleration resistance. The inertial resistance of the simulated car running on the road is also simulated by the dynamometer motor. The technical scheme cancels the flywheel device, optimizes the structure, and improves the test accuracy.
制动能量回收模块，电动轮带动轮毂转动，经过转速转矩传感器、传递给电涡流测功机和直流发电机。制动时，上位机控制直流发电机控制器，启动直流发电机13发电，电能通过电流综合控制台回收给蓄电池。电流综合控制台把电流回馈数据传给上位机，上位机进行分析。从而模拟电动轮制动性能和能量的回馈比例。In the braking energy recovery module, the electric wheel drives the wheel hub to rotate, which is transmitted to the eddy current dynamometer and DC generator through the speed torque sensor. When braking, the upper computer controls the DC generator controller to start the DC generator 13 to generate electricity, and the electric energy is recycled to the storage battery through the integrated current console. The current integrated console transmits the current feedback data to the upper computer, and the upper computer analyzes it. Thereby simulating the braking performance of the electric wheel and the energy feedback ratio.
转速扭矩测量模块，直流发电机13、电涡流测功机14与转鼓10通过联轴器11联结，轴中间安装转速扭矩传感器12，转速扭矩传感器12测量电动轮的转速、转矩可以计算出电动轮的工作性能。Speed and torque measurement module, DC generator 13, eddy current dynamometer 14 and drum 10 are connected through coupling 11, and speed and torque sensor 12 is installed in the middle of the shaft. The working performance of the electric wheel.
道路模拟模块，用于模拟汽车在行驶过程中，通过设定不同等级的路面、坡度等，测试电动轮的牵引性能，转鼓装置用来模拟路面。配合上位机输入不同路面的参数，上位机根据程序公式，转换计算成电涡流测功机14输出端对应的阻力矩，来模拟不同路面(比如坡度大小，路面等级等)。The road simulation module is used to simulate the driving process of the car and test the traction performance of the electric wheel by setting different grades of road surface and slope, etc. The drum device is used to simulate the road surface. Cooperate with the host computer to input parameters of different road surfaces, the host computer converts and calculates the resistance torque corresponding to the output end of the eddy current dynamometer 14 according to the program formula to simulate different road surfaces (such as slope size, road surface grade, etc.).
负载模拟模块，参见图1、图2，上位机调控加载电机1，加载电机1的壳体在试验台架上固定，加载电机1与垂向加载机构2通过联轴器相联结。垂向加载机构2可以是滚珠丝杆机构。工作时，加载电机1转动，带动垂直加载机构2上下运动，从而带动主销4上下运动，电动轮9和主销4通过横轴及转向机构7安装在一起，从而电动轮9会上下运动，转鼓10不能上下运动，只能绕中心轴转动，从而电动轮9会在转鼓10上压紧，加载机构2与主销4之间安装压力传感器3，传感器3会把压力信号反馈给上位机，可以测出压力的大小。上位机根据反馈的压力调控加载电机1，进而控制压力的大小。既可以模拟动态负载，也可以模拟静态负载。For the load simulation module, see Figure 1 and Figure 2, the host computer regulates the loading motor 1, the shell of the loading motor 1 is fixed on the test bench, and the loading motor 1 and the vertical loading mechanism 2 are connected through a coupling. The vertical loading mechanism 2 may be a ball screw mechanism. When working, the loading motor 1 rotates, driving the vertical loading mechanism 2 to move up and down, thereby driving the kingpin 4 to move up and down, the electric wheel 9 and the kingpin 4 are installed together through the horizontal shaft and the steering mechanism 7, so that the electric wheel 9 will move up and down, The drum 10 cannot move up and down, but can only rotate around the central axis, so that the electric wheel 9 will be pressed tightly on the drum 10, and a pressure sensor 3 is installed between the loading mechanism 2 and the main pin 4, and the sensor 3 will feed back the pressure signal to the upper position Machine, can measure the size of the pressure. The upper computer regulates the loading motor 1 according to the feedback pressure, and then controls the pressure. Both dynamic and static loads can be simulated.
转向及侧向力模拟模块，用于模拟汽车转向功能，在测试时给测控系统输入不同转向角的相应参数，系统控制转向装置工作，使电动轮转向，可模拟不同转向角时的侧向力。所述上位机调控转向机构7，使电动轮9发生偏转，转向传感器5可以测试转向角的大小，反馈给上位机，上位机根据反馈的角度调节转向机构7，从而做到转向的模拟。电动轮9转动时偏转会产生侧向力，侧向力传感器6测试反馈侧向力的大小。从而测试了转向力的大小。The steering and lateral force simulation module is used to simulate the steering function of the car. During the test, the corresponding parameters of different steering angles are input to the measurement and control system. The system controls the steering device to make the electric wheels turn, and can simulate the lateral force at different steering angles. . The host computer regulates the steering mechanism 7 to deflect the electric wheel 9. The steering sensor 5 can test the steering angle and feed back to the host computer. The host computer adjusts the steering mechanism 7 according to the angle of feedback, thereby achieving the simulation of steering. When the electric wheel 9 rotates, the deflection will generate a lateral force, and the lateral force sensor 6 tests the magnitude of the feedback lateral force. Thereby testing the size of the steering force.
每个模块都具有独立性，之间又相互作用，使测控系统成为有机统一的整体。比如在不同负载与不同路况下可测试电动轮的牵引性能、制动时的能量回馈比例和转向特性。从而做到既可独立测试某一功能模块。也可耦合测试多个功能模块。且本技术方案具有通用性、综合性和扩展性的优点。Each module is independent and interacts with each other, making the measurement and control system an organic and unified whole. For example, under different loads and different road conditions, the traction performance of the electric wheel, the energy feedback ratio during braking and the steering characteristics can be tested. In this way, a certain functional module can be tested independently. It is also possible to couple and test multiple functional modules. Moreover, the technical solution has the advantages of versatility, comprehensiveness and expansibility.
图3为试验系统工作流程图简化图。开始时，对于装置及模块进行初始化设置，然后通过上位机输入参数，使得控制模块工作，传感器接收信号后将数据发送到上位机，并在测试结束时打印测试结果。Figure 3 is a simplified diagram of the working flow chart of the test system. At the beginning, initialize the device and module, and then input parameters through the host computer to make the control module work, and the sensor will send the data to the host computer after receiving the signal, and print the test result at the end of the test.
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Inventor after: Lian Jinyi Inventor after: Wang Junfeng Inventor after: Zhang Xiqing Inventor after: Zang Xuechen Inventor after: Ma Xu Inventor before: Lian Jinyi Inventor before: Wang Junfeng Inventor before: Zhang Xiqing Inventor before: Tibetan learning Chen Inventor before: Ma Xu |
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Application publication date: 20170919 |