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Blended Regenerative Anti-Lock Braking System and Electronic Wedge Brake Coordinate Control Ensuring Maximal Energy Recovery and Stability of All-Wheel-Motor-Drive Electric Vehicles
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作者 Mahmoud Said Jneid Péter Harth 《Journal of Transportation Technologies》 2023年第3期465-495,共31页
ABS is an active safety system which showed a valuable contribution to vehicle safety and stability since it was first introduced. Recently, EVs with in-wheel-motors have drawn increasing attention owing to their grea... ABS is an active safety system which showed a valuable contribution to vehicle safety and stability since it was first introduced. Recently, EVs with in-wheel-motors have drawn increasing attention owing to their greatest advantages. Wheels torques are precisely and swiftly controlled thanks to electric motors and their advanced driving techniques. In this paper, a regenerative-ABS control RABS is proposed for all-in-wheel-motors-drive EVs. The RABS is realized as a pure electronic braking system called brake-by-wire. A coordination strategy is suggested to control RABS compromising three layers. First, wheels slip control takes place, and braking torque is calculated in the higher layer. In the coordinate interlayer, torque is allocated between actuators ensuring maximal energy recovery and vehicle stability. While in the lower layer, actuator control is performed. The RABS effectiveness is validated on a 3-DOF EVSimulink model through two straight-line braking manoeuvres with low and high initial speeds of 50 km/h and 150 km/h, respectively. Both regular and emergency braking manoeuvres are considered with ABS enabled and disabled for comparison. Simulation results showed the high performance of the proposed RABS control in terms of vehicle stability, brake response, stopping distance, and battery re-charging. 展开更多
关键词 EV Stability Regenerative-ABS Blended Braking Energy Recovery In-Wheel-motor Electronic-Wedge-brake brake-by-Wire
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Research on motor rotation anomaly detection based on improved VMD algorithm
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作者 Fuzhao Chen Zhilei Chen +4 位作者 Qian Chen Tianyang Gao Mingyan Dai Xiang Zhang Lin Sun 《Railway Sciences》 2024年第1期18-31,共14页
Purpose–The electromechanical brake system is leading the latest development trend in railway braking technology.The tolerance stack-up generated during the assembly and production process catalyzes the slight geomet... Purpose–The electromechanical brake system is leading the latest development trend in railway braking technology.The tolerance stack-up generated during the assembly and production process catalyzes the slight geometric dimensioning and tolerancing between the motor stator and rotor inside the electromechanical cylinder.The tolerance leads to imprecise brake control,so it is necessary to diagnose the fault of the motor in the fully assembled electromechanical brake system.This paper aims to present improved variational mode decomposition(VMD)algorithm,which endeavors to elucidate and push the boundaries of mechanical synchronicity problems within the realm of the electromechanical brake system.Design/methodology/approach–The VMD algorithm plays a pivotal role in the preliminary phase,employing mode decomposition techniques to decompose the motor speed signals.Afterward,the error energy algorithm precision is utilized to extract abnormal features,leveraging the practical intrinsic mode functions,eliminating extraneous noise and enhancing the signal’s fidelity.This refined signal then becomes the basis for fault analysis.In the analytical step,the cepstrum is employed to calculate the formant and envelope of the reconstructed signal.By scrutinizing the formant and envelope,the fault point within the electromechanical brake system is precisely identified,contributing to a sophisticated and accurate fault diagnosis.Findings–This paper innovatively uses the VMD algorithm for the modal decomposition of electromechanical brake(EMB)motor speed signals and combines it with the error energy algorithm to achieve abnormal feature extraction.The signal is reconstructed according to the effective intrinsic mode functions(IMFS)component of removing noise,and the formant and envelope are calculated by cepstrum to locate the fault point.Experiments show that the empirical mode decomposition(EMD)algorithm can effectively decompose the original speed signal.After feature extraction,signal enhancement and fault identification,the motor mechanical fault point can be accurately located.This fault diagnosis method is an effective fault diagnosis algorithm suitable for EMB systems.Originality/value–By using this improved VMD algorithm,the electromechanical brake system can precisely identify the rotational anomaly of the motor.This method can offer an online diagnosis analysis function during operation and contribute to an automated factory inspection strategy while parts are assembled.Compared with the conventional motor diagnosis method,this improved VMD algorithm can eliminate the need for additional acceleration sensors and save hardware costs.Moreover,the accumulation of online detection functions helps improve the reliability of train electromechanical braking systems. 展开更多
关键词 Electromechanical brake system Railway brake system motor fault diagnosis Variational mode decomposition Error energy Feature extraction
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考虑道路识别的四驱电动汽车再生制动策略
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作者 潘公宇 徐申 《江苏大学学报(自然科学版)》 CAS 北大核心 2024年第1期1-7,共7页
为了充分利用路面附着条件分配再生制动力,提高制动能量回收率,根据双电动机四驱结构电动汽车复合制动系统的特点,对其制动能量回收控制策略进行了研究.分析了驱动轮与地面附着特性,设计了道路识别器来计算每个轮胎与当前路面之间的峰... 为了充分利用路面附着条件分配再生制动力,提高制动能量回收率,根据双电动机四驱结构电动汽车复合制动系统的特点,对其制动能量回收控制策略进行了研究.分析了驱动轮与地面附着特性,设计了道路识别器来计算每个轮胎与当前路面之间的峰值附着系数,并使用模糊控制策略确定每个车轮与8种道路的滑移率和附着利用率的相似输入.根据双电动机外部特性的制动力分配关系,提出了使更多制动能量回馈给电池的策略.结果表明:制动强度为0.3时,能量回收率为65.55%,具有较高的回收效率. 展开更多
关键词 电动汽车 再生制动 复合制动 双电动机四驱 道路识别 模糊控制 能量回收
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有轨电车电子机械制动系统夹紧力控制优化方法
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作者 赵逸云 林辉 李兵强 《电机与控制学报》 EI CSCD 北大核心 2024年第7期141-151,共11页
针对有轨电车电子机械制动(EMB)系统,提出一种夹紧力控制优化方法。首先建立EMB系统的数学模型,依据其物理结构及刚度非线性特性,将控制器设计为夹紧力控制层与转速控制两级控制结构。针对夹紧力控制层,仅考虑间隙消除与夹紧力的跟踪控... 针对有轨电车电子机械制动(EMB)系统,提出一种夹紧力控制优化方法。首先建立EMB系统的数学模型,依据其物理结构及刚度非线性特性,将控制器设计为夹紧力控制层与转速控制两级控制结构。针对夹紧力控制层,仅考虑间隙消除与夹紧力的跟踪控制,采用速度曲线规划与夹紧力非线性PI控制相结合,以在期望时间内实现制动间隙快速消除;针对控制层,将系统中存在不确定扰动等效于综合干扰项,提出一种自适应增益超螺旋算法(AGSTA),提高了电机控制层对未知干扰的鲁棒性及速度跟踪的快速性,减小转速超调,使EMB系统的夹紧力保持一致。仿真及实验结果表明,所提出的夹紧力控制优化方法能够有效地改善系统的控制性能。 展开更多
关键词 有轨电车 电子机械制动系统 夹紧力控制 无刷直流电机 Super-Twisting算法
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双电机电动汽车再生制动控制策略研究
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作者 李健 张昕 《内燃机与配件》 2024年第10期85-88,共4页
本文针对某款双电机电动汽车的再生制动展开相关研究。基于I曲线、ECE法规曲和f线设计了4种不同制动强度段的前、后轮制动力分配策略,然后根据电机转速、电池SOC,车速以及制动强度设计了紧急制动与非紧急制动两种工况下的再生制动力分... 本文针对某款双电机电动汽车的再生制动展开相关研究。基于I曲线、ECE法规曲和f线设计了4种不同制动强度段的前、后轮制动力分配策略,然后根据电机转速、电池SOC,车速以及制动强度设计了紧急制动与非紧急制动两种工况下的再生制动力分配策略。其中在非紧急制动工况中,建立了模糊控制算法,根据车速与制动强度调整再生制动了分配系数。使用Carsim与MATLAB/Simulink建立联合仿真模型,在NEDC工况下对模型进行仿真,结果表明,本文设计再生制动控制策略能够满足制动工况需求,并且通过制动能量回收电池SOC提升了4.41%。 展开更多
关键词 双电机电动汽车 再生制动 模糊控制 CARSIM MATLAB/SIMULINK
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加工中心核心部件——数控转台关键技术探析
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作者 张亮 《中国科技纵横》 2024年第9期64-66,共3页
在加工中心发展方兴未艾的今天,其核心部件数控转台的重要性日益凸显。基于此,本文对加工中心数控转台常用产品进行了分类,并指出了常见的应用场景,对数控转台的结构和关键技术进行了总体介绍。希望可以帮助数控转台设计者和选用者理清... 在加工中心发展方兴未艾的今天,其核心部件数控转台的重要性日益凸显。基于此,本文对加工中心数控转台常用产品进行了分类,并指出了常见的应用场景,对数控转台的结构和关键技术进行了总体介绍。希望可以帮助数控转台设计者和选用者理清思路,为数控转台研发技术路径提供参考。 展开更多
关键词 数控转台 直驱电机 间隙消除 刹紧机构
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某风电场偏航电机抱闸烧毁故障分析及治理
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作者 陆华立 梁双 《科技创新与应用》 2024年第11期156-159,共4页
该文主要对某风电场偏航电机抱闸烧毁故障进行分析,并提出相应的解决方案。通过对故障原因的分析,发现设计、制造和使用问题都可能导致抱闸烧毁,进而影响风电场的正常运行和环境安全。为解决这一问题,文章提出技术改造、维护措施和操作... 该文主要对某风电场偏航电机抱闸烧毁故障进行分析,并提出相应的解决方案。通过对故障原因的分析,发现设计、制造和使用问题都可能导致抱闸烧毁,进而影响风电场的正常运行和环境安全。为解决这一问题,文章提出技术改造、维护措施和操作培训3个方面的解决方案。 展开更多
关键词 风电场 偏航电机 抱闸烧毁 故障分析 解决方案
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一种无位置传感器无刷直流电机制动换相方法
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作者 沈佳浩 蔡志端 +1 位作者 秦陈威 吴成傲 《科技创新与应用》 2024年第18期53-58,共6页
无刷直流电机在制动时,由于转子转速发生变化,电机反电动势波形将受到影响,在无位置传感器无刷直流电机控制中,常规的反电动势过零延后30°的换相方法无法准确获得换相点,从而影响电机运行性能。该文提出一种基于反电动势斜率的无... 无刷直流电机在制动时,由于转子转速发生变化,电机反电动势波形将受到影响,在无位置传感器无刷直流电机控制中,常规的反电动势过零延后30°的换相方法无法准确获得换相点,从而影响电机运行性能。该文提出一种基于反电动势斜率的无位置传感器无刷直流电机制动过程换相方法,通过对非导通相的反电动势斜率的分析,构建基于反电动势斜率的位置信号函数,并提出相应的控制策略。该换相方法不依赖于反电动势过零点检测,在电机降速较大的工况下也能准确地找到换相点,控制电机良好制动。实验结果验证论文所提方法的正确性和可行性。 展开更多
关键词 无刷直流电机 无位置传感器 反电动势斜率 制动 换相
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轮毂电机EHB轮缸压力模糊控制设计及优化分析
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作者 王雪 丁洪朋 白玉林 《机械管理开发》 2024年第4期172-173,176,共3页
电子液压制动(EHB)是利用电子控制系统来实现液压执行部件的控制功能,把轮毂电机安装于轮辋中,可以控制车辆处于紧急工况时的运行稳定性.选择轮毂电机作为电液复合制动系统驱动系统,设置高压蓄能器与液压泵结合的EHB轮缸压力调控模式,利... 电子液压制动(EHB)是利用电子控制系统来实现液压执行部件的控制功能,把轮毂电机安装于轮辋中,可以控制车辆处于紧急工况时的运行稳定性.选择轮毂电机作为电液复合制动系统驱动系统,设置高压蓄能器与液压泵结合的EHB轮缸压力调控模式,利用Simulink-AMESim仿真平台完成控制策略可行性测试.研究结果表明,制动平顺性控制策略,并构建了一种通过PID矫正方式来补偿电机制动的方法.相比较其他方法,该方法可以显著降低进入电液制动切换后的冲击,进而高效率地增强制动平顺性. 展开更多
关键词 电子液压制动 轮缸电机 模糊控制 平顺性 控制策略
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电动汽车续驶里程影响因素分析
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作者 刘建辉 王仲太 +3 位作者 吉文博 王磊 刘治敏 张力伟 《小型内燃机与车辆技术》 CAS 2024年第1期52-55,79,共5页
电动汽车因操作便捷、噪声低、节能环保等特点,已成为人们出行的首选交通工具之一。续驶里程作为电动汽车的关键性能之一,广受关注。分析了影响续驶里程的能量流向,然后以能量流向为基础,分析了电动汽车的整车参数、动力电池、电机及其... 电动汽车因操作便捷、噪声低、节能环保等特点,已成为人们出行的首选交通工具之一。续驶里程作为电动汽车的关键性能之一,广受关注。分析了影响续驶里程的能量流向,然后以能量流向为基础,分析了电动汽车的整车参数、动力电池、电机及其控制器系统、制动能量回收等因素对续驶里程的影响,展望了未来电动汽车续驶里程增加的方向。 展开更多
关键词 电动汽车 续驶里程 整车参数 动力电池 电机及其控制器系统 制动能量回收
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一种自动化用调速电磁制动电机的创新设计
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作者 张磊 齐利娜 +2 位作者 孙国钧 周江峰 张浩 《日用电器》 2024年第6期72-76,81,共6页
本文介绍了电机制动器和电机调速的作用,同时介绍并对比了不同厂家的电机制动器和电机调速构造及运行原理。提出了一种调速电磁制动电机的创新设计,有效改善电机的散热,降低电机的温升,并同时可以缩短电机的长度,更好的满足客户的安装... 本文介绍了电机制动器和电机调速的作用,同时介绍并对比了不同厂家的电机制动器和电机调速构造及运行原理。提出了一种调速电磁制动电机的创新设计,有效改善电机的散热,降低电机的温升,并同时可以缩短电机的长度,更好的满足客户的安装使用。 展开更多
关键词 制动器 调速 调速电磁制动电机
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机械压力机主电机安全静止监测解决方案
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作者 张为堂 李孝东 《锻压装备与制造技术》 2024年第2期67-70,共4页
当操作人员进入机械压力机的危险区域进行维护保养作业时,为了保证作业人员的安全,需确保主传动的动力源电机停止转动、保持静止。为此,提出一种能够监测主电机完全处于静止状态的安全静止监测解决方案。
关键词 机械压力机 主电机 安全静止 监测 安全PLC 安全抱闸
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Regenerative Braking Strategy for Motor Hoist by Ultracapacitor 被引量:7
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作者 BIAN Yongming ZHU Lijing +2 位作者 LAN Hao LI Anhu XU Xinming 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2012年第2期377-384,共8页
Rising concern in environmental issues on global scale has made energy saving in powered equipment a very important subject.In order to improve the energy efficiency and driving range of a motor hoist,a regenerative b... Rising concern in environmental issues on global scale has made energy saving in powered equipment a very important subject.In order to improve the energy efficiency and driving range of a motor hoist,a regenerative braking system is designed and discussed.The system takes a unique ultracapacitor-only approach to energy storage system.The bi-directional bride DC?DC converter which regulates current flow to and from the ultracapacitor operates in two modes:boost and buck,depending on the direction of the flow.In order to provide constant input and output current at the ultracapacitor,this system uses a double proportional-integral(PI) control strategy in regulating the duty cycle of PWM to the DC?DC converter.The permanent magnet synchronous motor(PWSM) drive system is also studied.The space vector pulse width modulation(SVPWM) technique,along with a two-closed-loop vector control model,is adopted after detailed analysis of PMSM characteristics.The overall model and control strategy for this regenerative braking system is ultimately built and simulated under the MATLAB and Simulink environment.A test platform is built to obtain experimental results.Analysis of the results reveals that more than half of the gravitational potential energy can be recovered by this system.Simulation and experimentation results testify the validity of the double PI control strategy for interface circuit of ultracapacitor and SVPWM strategy for PMSM. 展开更多
关键词 ULTRACAPACITOR regenerative braking strategy DC/DC converter permanent magnet synchronous motor space vector pulse width modulation
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Wide speed range for traction motor in braking force of electric braking control system 被引量:2
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作者 Young-Choon Kim Moon-Taek Cho 《Journal of Central South University》 SCIE EI CAS 2014年第10期3837-3843,共7页
A vehicle stopping method using an electric brake until a traction motor is stopped is studied. At the moment of vehicle stop, electric brake is changed to control mode where torque is reduced at a low speed. Gradient... A vehicle stopping method using an electric brake until a traction motor is stopped is studied. At the moment of vehicle stop, electric brake is changed to control mode where torque is reduced at a low speed. Gradient is controlled by estimating the load torque of motor, thereby traction motor is not rotated after stop. In addition, coasting operation and brake test are performed from normal-opposite operation and start using a small-scale model comprising the inertial load equipment and the power converter. Further, traction motor is made to be equipped with a suspension torque. Pure electric braking that makes traction motor stop by an air brake at the time of stop is also implemented. Constant torque range and constant power range are expanded during braking so that braking force is secured with the electric brakes even in high speed region. Therefore, vehicle reduction effect can be expected by reducing parts related with an air brake which is not used frequently by using a pure electric brake in the M car in wide speed region. Further, maintenance of brake system can be reduced. Besides, ride comfort of passenger in the electric rail car, energy efficiency improvement, and noise reduction effect can be additionally expected. Further, an improved brake method that uses only an electric brake till motor stop is proposed by comparing those in the blending brake that uses an air brake while reducing brake torque at vehicle stop. 展开更多
关键词 牵引电动机 牵引电机 制动力 制动控制系统 调速范围 空气制动器 电动制动器 扭矩控制
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Fuzzy Sliding Mode Control Based on Longitudinal Force Estimation for Electro-mechanical Braking Systems using BLDC Motor 被引量:3
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作者 Xiaoyan Peng Mingfei Jia +2 位作者 Lei He Xiang Yu Yibin Lv 《CES Transactions on Electrical Machines and Systems》 2018年第1期142-151,共10页
This paper focuses on the controller design using fuzzy sliding mode control(FSMC)with application to electro-mechanical brake(EMB)systems using BLDC Motor.The EMB controller transmits the control signal to the motor ... This paper focuses on the controller design using fuzzy sliding mode control(FSMC)with application to electro-mechanical brake(EMB)systems using BLDC Motor.The EMB controller transmits the control signal to the motor driver to rotate the motor.The torque distribution of motors is studied in this paper actually.Firstly,the model of the EMB system is established.Then the state observer is developed to estimate the vehicle states including the vehicle velocity and longitudinal force.Due to the fact that the EMB system is nonlinear and uncertain,a FSMC strategy based on wheel slip ratio is proposed,where both the normal and emergency braking conditions are taken into account.The equivalent control law of sliding mode controller is designed on the basis of the variation of the front axle and rear axle load during the brake process,while the switching control law is adjusted by the fuzzy corrector.The simulation results illustrate that the FSMC strategy has the superior performance,better adaptability to various types of roads,and shorter braking distance,as compared to PID control and traditional sliding mode control technologies.Finally,the hardware-in-loop(HIL)experimental results have exemplified the validation of the developed methodology. 展开更多
关键词 BLDC motor electro-mechanical brake fuzzy sliding mode control longitudinal force estimation hardware-in-loop experiments wheel slip ratio
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The Summary of the Research on the Compound Braking Strategy of Four Wheel Hub Motor Drive Electric Vehicle
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作者 Peiteng Zhao Huanhuan Zhang Bo Peng 《Engineering(科研)》 2016年第7期432-437,共7页
This paper describes in detail three kinds of typical compound braking strategy of wheel motor drive electric vehicle and summarizes the current commonly used strategies based on the three typical strategies developed... This paper describes in detail three kinds of typical compound braking strategy of wheel motor drive electric vehicle and summarizes the current commonly used strategies based on the three typical strategies developed. In the end, a new compound braking strategy is proposed;that is, we take braking mode classify, ECE regulations and SOC value of the battery as an important reference of braking force that joins the motor braking force, as well as we join the different identification models;according to the different braking modes, the purpose is that we can apply the different braking program. 展开更多
关键词 Wheel Hub motor Compound Braking Strategy Research Electric Vehicle
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电子机械制动器的建模、仿真和实验研究 被引量:1
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作者 刘志强 王振 陈玉锦 《机电工程》 CAS 北大核心 2023年第4期485-493,共9页
为了解决目前车辆普遍装配液压制动系统存在的响应滞后问题,以实验室某目标车型为例,对其匹配的电子机械制动器(EMB)进行了设计建模、仿真分析和实验研究。首先,根据车型参数确定制动间隙与最大制动力并完成了制动效能的校核工作,采用... 为了解决目前车辆普遍装配液压制动系统存在的响应滞后问题,以实验室某目标车型为例,对其匹配的电子机械制动器(EMB)进行了设计建模、仿真分析和实验研究。首先,根据车型参数确定制动间隙与最大制动力并完成了制动效能的校核工作,采用“电机+行星齿轮减速器+滚珠丝杠”的选型进行了组合设计,使用CATIA对EMB各部件进行了三维建模,利用ANSYS/Workbench对制动钳钳体进行了力学性能仿真分析;然后,根据EMB各部件间力学与几何关系分别建立了对应的数学模型,在MATLAB/Simulink中建立EMB整体仿真模型后完成了对电机转速特性、堵转转矩特性及EMB最大夹紧力的仿真;最后,搭建了实验平台,结合实验结果对仿真结果进行了验证。研究结果表明:EMB工作时的最大应力为安全极限的34.87%,制动间隙消除速度提高了42.31%,达到最大制动夹紧力的时间降低了45.82%,显著提升了目标车型的制动性能。 展开更多
关键词 电子机械制动器 电机+行星齿轮减速器+滚珠丝杠 制动间隙 最大夹紧力 MATLAB/SIMULINK 制动钳钳体
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轮毂电驱动汽车制动能量回收控制策略研究 被引量:1
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作者 刘刚 《交通节能与环保》 2023年第1期66-69,共4页
本文以四轮轮毂电驱动汽车为研究对象,针对其续航能力不足等缺点,选用模糊控制对制动能量回收控制策略进行设计,利用Amesim和Simulink软件建立整车控制仿真模型并进行联合仿真。设置不同工况进行仿真,结果表明:所设计的制动能量回收控... 本文以四轮轮毂电驱动汽车为研究对象,针对其续航能力不足等缺点,选用模糊控制对制动能量回收控制策略进行设计,利用Amesim和Simulink软件建立整车控制仿真模型并进行联合仿真。设置不同工况进行仿真,结果表明:所设计的制动能量回收控制策略在保证车辆制动性能的同时,提高了能量回收效率,并减少了动力电池荷电SOC值的损耗,为提高续航能力及减少能量消耗提供一定的研究基础。 展开更多
关键词 轮毂电机 制动能量回收 模糊控制 转矩分配
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P1P3构型PHEV双电机协同制动能量回收策略研究
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作者 罗勇 张嘉璐 +3 位作者 李小凡 李莉莎 张隆 孙强 《重庆理工大学学报(自然科学)》 北大核心 2023年第9期62-70,共9页
选择了配备有P1和P3的双电机插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)作为研究平台。在能量回收过程中,P1和P3电机可以同时进行,相比其他构型而言有着更加明显的能量回收优势。车辆制动过程中,当P1电机效率高于P3时,... 选择了配备有P1和P3的双电机插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)作为研究平台。在能量回收过程中,P1和P3电机可以同时进行,相比其他构型而言有着更加明显的能量回收优势。车辆制动过程中,当P1电机效率高于P3时,优先选用P1电机进行制动,P3电机提供剩余所需制动力;当P3电机效率高于或等于P1时,则优先选用P3电机进行制动,P1电机弥补剩余所需的制动力。以搭载AMT(电控机械制动变速箱)的双电机插电式混合动力汽车为研究对象,在保证制动安全性的前提下,为尽可能地回收能量,提出一种基于双电机能量回收的前后轴制动力分配、机电制动力分配以及双电机制动力分配的多级制动力分配策略。结合Matlab/Simulink搭建整车模型,并进行仿真分析。仿真结果显示,制动能量回收率最高能达到66.56%,回收效果良好。 展开更多
关键词 插电式混合动力汽车 双电机构型 制动能量回收 控制策略
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三相笼型异步电动机反接制动特性的Matlab仿真
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作者 张代润 《科技创新与应用》 2023年第33期57-60,共4页
该文将Matlab的仿真技术应用于三相笼型异步电动机反接制动特性的电机学教学过程中,通过由三相交流电压源、三相配电变压器、匹配并联电容器和三相笼型异步电动机构成的主电路在负载转矩随转速变化的负载条件下的起动特性、反接制动特... 该文将Matlab的仿真技术应用于三相笼型异步电动机反接制动特性的电机学教学过程中,通过由三相交流电压源、三相配电变压器、匹配并联电容器和三相笼型异步电动机构成的主电路在负载转矩随转速变化的负载条件下的起动特性、反接制动特性仿真,呈现其电压、电流、转矩、转速的波形变化趋势,提供一种电机学理论形象化、直观化的教学手段。 展开更多
关键词 异步电动机 反接制动特性 MATLAB仿真 电机学教改 仿真模型
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