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给出了柴油机启动发电机一体化(ISG)电机启动扭矩和最大功率这2个关键性能参数的设计方法.以曲轴系统运动学分析和倒拖试验相结合来设计启动扭矩;以驾驶循环统计分析来设计最大功率.最后以Ford Explorer SUV车型为例给出了设计参数,并使用动力系统分析工具包PSAT软件进行了仿真计算.仿真结果表明:在保持车辆原有动力性的情况下,安装了ISG混合动力系统的车辆油耗在城市循环时下降了35%,在高速循环时下降了27%. 相似文献
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驱动电机关乎着汽车的动力性能和能源转换效率,永磁同步扁线电机因其大扭矩、恒功率、强磁场等优势逐步成为新能源汽车的首选。文章通过分析扁线多层电机的性能参数,以永磁同步扁线6层定子电机为例,采用叠绕组和波绕组两种绕制方式展开绕组绘制图,对6层定子绕组接线方式进行了细致分析,得出叠绕短距绕制时节省端部用铜,但引接线比较杂乱且最后线圈嵌线较困难;波绕组虽引接线整齐美观,但短距绕制时不能节省端部用铜量,据此解读了扁线电机定子绕组的嵌线技术,力求解决职业院校教学中的难点和汽车维修技术上的难题。 相似文献
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本文分析了提升汽车电源电压从14V到42V的技术原因。重点介绍了组成汽车42V系统的车载电源、一体化的启动机/发电机系统的结构和性能。分析了对该系统的独特要求,并介绍了一种基于TMS320LF241芯片永磁同步电动机的IGA/ISG系统控制方案。指出了采用集成式起动机/发电机是一种较好的选择。 相似文献
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8.电驱动装置的电机V141
电驱动装置的电机V141参数说明如表5所示.
电驱动装置的电机安装在2.0L-TFSI发动机和8挡自动变速器之间的空隙处(取代了变矩器),位置如图28所示.该电机是永久激励式同步电机,由1个三相场来驱动.转子上装备有永久磁铁(由钕-铁-硼制成,NdFeB).电驱动装置的电机V141集成在三相交流驱动装置VX54内.电驱动装置的电机由电驱动控制单元J841和电驱动功率和控制电子装置JX1来操控,通过改变频率来调节转速,通过脉冲宽度调制来调节扭矩.通过功率控制电子装置来将266V的直流电转换成三相交流电,这个三相电可在电驱动装置的电机内产生一个三相电磁场. 相似文献
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《汽车安全与节能学报》2010,(1)
基于模糊神经控制(NFC)理论,提出了一种混合动力客车的智能防抱死刹车控制方法。通过模糊神经控制器,有效而合理地分配了集成起动电机(ISG)和刹车片之间的刹车扭矩。实验表明:刹车性能和制动回馈效果均得到改善,有利于混合动力客车的安全与节能。 相似文献
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对采用ISG电机的一款混合动力轿车进行了系统匹配仿真分析,通过对NEDC和SHDC工况下不同电机功率匹配情况、燃油消耗的仿真分析,得出了不同电机功率匹配对油耗的影响;接下来通过0~100km/h加速仿真,确定了满足加速性能要求的电机功率,并通过多次连续加速测试确定了电池容量的大致需求。从仿真分析的角度提出了ISG系统可行的匹配方案和预期的开发目标。 相似文献
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ISG(Integral Starter Generator)集成起动机/发电机
ISG又称为IMG(Integral Motor Generator)集成电机/发电机,它是一个通过永磁体内转子和单齿定子来激励的同步电机,该驱动单元适用于起动/停止系统、以及轻度和中度混合动力,可实现起动、电机推进和助力、能量再生功能.
LPG(Ligudfied Petroleum Gas)液化天然气
LPG是指由天然气处理厂或炼油厂生产的以丙烷、丁等等低分子碳氢化合物为主的混合物,是油田伴生的气体和工厂副产品,以液态储存和运输. 相似文献
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J. Hur 《International Journal of Automotive Technology》2010,11(4):593-600
Motorization in vehicles is expanding rapidly for fuel efficiency, customer comfort, convenience, and safety features. These
new electric loads represent an increase in the required electric power. This has generated interest in new, higher power
systems such as the 42V Power Net. The electro-hydraulic power steering (EHPS) system is one of these systems. This paper
presents the development of the electric motor-driven pump unit for the EHPS system using a 42V power-Net. The interior type
permanent magnet synchronous motor (IPMSM) can be applied to this system with more power density per volume for compactness
of the EHPS. In order to improve the system, the IPMSM and its control method was optimized for improved torque characteristics
and electric power consumption. The performances of both the pump unit and the IPMSM have been verified by experimental results.
Finally, all in one type the electric motor-driven pump unit are developed from the experiment verification. 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(12):1897-1923
ABSTRACTHybrid Electric Vehicles (HEV) offer improved fuel efficiency compared to conventional vehicles at the expense of adding complexity and at times, reduced total power. As a result, HEV generally lack the dynamic performance that customers enjoy. To address this issue, the paper presents a HEV with electric All-Wheel-Drive capabilities via the use of torque vectoring electric rear axle drive (TVeRAD) to power the rear axle. The addition of TVeRAD to a front wheel drive HEV improves the total power output. To improve the handling characteristics of the vehicle, the TVeRAD provides torque vectoring at the rear axle. A bond graph model of the drivetrain is developed and used in co-simulation with CarSim. The paper proposes a control system which utilises control allocation to optimise tyre forces. The proposed control system is tested in the simulation environment with a high fidelity CarSim vehicle model. Simulation results show the control system is able to maximise vehicle longitudinal performance while avoiding tyre saturation on low mu surfaces. More importantly, the control system is able to track the desired yaw moment request on a high speed double lane change manoeuvre through the use of the TVeRAD to improve the handling characteristic of the vehicle. 相似文献
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Pinyung Chen Shinhung Chang Rongshun Chen 《International Journal of Automotive Technology》2017,18(4):663-670
This paper is aimed to propose a decoupled self-tuning proportional plus integral (PI) controller with simple law for an idling stop system applied to scooters. An integrated starter generator (ISG) of the idling stop system is designed with a high efficiency permanent magnet synchronous motor (PMSM). The PMSM used as an ISG must have a high torque characteristic to ensure that the engine can be accelerated up to firing speed. A conventional and useful control algorithm named PI control is unable to handle motor current very well for dynamic load, parametric variation, and external disturbance, especially in a vehicle application. Therefore, a robust algorithm for current control in an ISG is proposed. The decoupled selftuning PI controller based on the Lyapunov stability theorem is utilized to guarantee the control performance. Numerical simulations demonstrate the effectiveness of the proposed control algorithm. Experimental results show that the engine of a 150 cm3 scooter can be cranked to reach firing speed by a ISG within 0.1?0.2 second. The proposed method is simple, robust, as well as stable for idling stop system, and can be effectively implemented. 相似文献
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In this paper, the torque and power required by dual motors for electric tracked vehicle during dynamic steering maneuvers with different steering radiuses are analyzed. A steering coupling drive system composed of a new type of center steering motor, two Electromagnetic (EM) clutches, two planetary gear couplers, and two propulsion motors is proposed for the dual motors drive high speed electric tracked vehicle (2MHETV), which aims to improve its lateral stability. An average torque direct distribution control strategy based on steering coupling and an optimization-distribution-based close-loop control strategy are designed separately to control the driving torque or regenerative braking torque of two propulsion motors for vehicle stability enhancement. Then models of the 2MHETV and the proposed control strategy are established in Recudyn and Matlab/Simulink respectively to evaluate the lateral stability of dynamic steering for the 2MHETV with different steering radiuses on hard pavement.The simulation results show that the lateral stability of the 2MHETV can be significantly improved by the proposed optimization-distribution-based close-loop control strategy based on steering coupling system. 相似文献