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To solve the problem of the existing fault-tolerant control system of four-wheel independent drive (4WID) electric vehicles (EV), which relies on fault diagnosis information and has limited response to failure modes, a modelindependent self-tuning fault-tolerant control method is proposed. The method applies model-independent adaptive control theory for the self-tuning active fault-tolerant control of a vehicle system. With the nonlinear properties of the adaptive control, the complex and nonlinear issues of a vehicle system model can be solved. Besides, using the online parameter identification properties, the requirement of accurate diagnosis information is relaxed. No detailed model is required for the controller, thereby simplifying the development of the controller. The system robustness is improved by the error based method, and the error convergence and input-output bounds are proved via stability analysis. The simulation and experimental results demonstrate that the proposed fault-tolerant control method can improve the vehicle safety and enhance the longitudinal and lateral tracking ability under different failure conditions. 相似文献
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EQ6700EV3整车电气控制系统的设计与研究 总被引:1,自引:0,他引:1
根据燃料电池的特殊性和使用要求,对EQ6700EV3燃料电池电动客车的整车电气控制系统进行了分析,并对 燃料电池、DC/DC变换器、电机控制器等电气系统与整车电气控制系统的关系进行了分析。 相似文献
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电动汽车与轻量化技术 总被引:1,自引:0,他引:1
建立资源节约型和环境友好型社会是我国国民经济和社会发展中的一项长期战略任务。发展以电动汽车为主的新能源汽车是汽车产业实现可持续发展和技术跨越的最佳技术路线之一。本文重点阐述了电动汽车的整车轻量化及其相关技术。 相似文献
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1概述
1.1混合动力电动车和电动车的电池
在内燃机汽车上,常常采用电池来作为发动机起动机和点火、照明、信号系统、刮水器和喷淋器,以及车载娱乐和通讯设备等装备的电源.它们所需要的电能容量较小,工作时间较短,并且是与发动机带动的电机共同组成汽车的电气装备系统.但是在混合动力源电动车(HEV)和电动车(EV)上,电池必须组合成具有强大电能的动力电源.电池除主要作为驱动动力能源外,还要向空调系统、动力转向系统等提供动力能源.另一方面还要为点火系统、照明、信号系统、刮水器和喷淋器及车载娱乐和通讯设备等装备提供低压电能. 相似文献
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电动汽车的驱动能源中镍氢蓄电池在微、轻、中度混合动力车中广泛应用,强混合动力车、插电式混合动力车、纯电动车广泛应用锂离子蓄电池;乘用车驱动电机广泛应用稀土永磁同步电机。 相似文献
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Youngjin Jang Minyoung Lee In-Soo Suh Kwanghee Nam 《International Journal of Automotive Technology》2017,18(3):505-510
The integrated longitudinal and lateral dynamic motion control is important for four wheel independent drive (4WID) electric vehicles. Under critical driving conditions, direct yaw moment control (DYC) has been proved as effective for vehicle handling stability and maneuverability by implementing optimized torque distribution of each wheel, especially with independent wheel drive electric vehicles. The intended vehicle path upon driver steering input is heavily depending on the instantaneous vehicle speed, body side slip and yaw rate of a vehicle, which can directly affect the steering effort of driver. In this paper, we propose a dynamic curvature controller (DCC) by applying a the dynamic curvature of the path, derived from vehicle dynamic state variables; yaw rate, side slip angle, and speed of a vehicle. The proposed controller, combined with DYC and wheel longitudinal slip control, is to utilize the dynamic curvature as a target control parameter for a feedback, avoiding estimating the vehicle side-slip angle. The effectiveness of the proposed controller, in view of stability and improved handling, has been validated with numerical simulations and a series of experiments during cornering engaging a disturbance torque driven by two rear independent in-wheel motors of a 4WD micro electric vehicle. 相似文献
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瑞典沃尔沃汽车公司与瑞典瓦挺法尔电力公司的合资企业V2共同开发的插电式混合动力汽车将在2012年上市。其量产样车已经发表。基型车是沃尔沃V70。作为标准型式的混合动力系统, 相似文献
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In a modern society, traffic congestion is a major problem in every metropolis. To solve the problem of traffic congestion an innovative omni-directional vehicle is proposed. This research has mainly focussed on developing the comprehensive vehicle dynamics model for an omni-directional road vehicle. Then the stability of the vehicle in the yaw plane was analysed under different scenarios based on the response of the side slip angle. Finally an active steering PID controller was suggested and which, according to the results of the simulation, improved the yaw plane stability. 相似文献
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电动车应包括电动汽车(EV)、电动摩托车、电动自行车、电动助力自行车、电动代步车、电动运动车、燃料电池电动车(FCEV)及混合动力源电动车(HEV)等,电动车又可分为纯电池电动车、燃料电池电动车和混合动力源电动车三种,各种类电动车对电池都有不同的要求,因此也有了各种各样的电池,电池技术发展到今天,已有了很大进步,向实用化方向靠近了一大步,在品种上,已有一些电池脱颖而出,有可能成为未来电动车用电池的主流。 相似文献
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