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1)  four-wheel active steering(4WAS)
四轮主动转向
1.
Based on the analysis of deficiency of conventional four-wheel-steering,a four-wheel active steering(4WAS) control was proposed which combines the front wheel active steering and rear wheel active steering.
在分析了传统四轮转向不足的基础上,将前轮主动转向与后轮主动转向相结合,提出了四轮主动转向(4WAS)控制,独立地控制前后轮转向角。
2)  active 4WS
主动四轮转向
1.
A Model Reference Adaptive Control(MRAC) method based on BP Neural Network(NN) was applied to active 4WS,which was used to control the front wheel and rear wheel steering angle,then the controlled vehicle should follow the reference model.
建立了考虑侧风作用的汽车三自由度非线性动力学模型,应用基于BP神经网络的模型,参考自适应控制方法设计了主动四轮转向控制系统,并对非线性汽车模型进行了控制仿真。
2.
And the design of active 4WS control system using model following adaptive method based on Lyapunov s stability theory is proposed.
首先针对二自由度四轮转向汽车的耦合性质,对其进行了状态反馈解耦,然后应用基于李雅普诺夫稳定性原理的模型参考自适应方法设计了主动四轮转向控制系统。
3)  active front steering
主动前轮转向
1.
A method to improve braking stability by the integrated control of yaw-moment control and active front steering;
一种基于横摆力矩和主动前轮转向控制的制动稳定性控制方法
2.
A fuzzy control method is proposed to improve vehicle yaw stability by the integrated control of yaw moment control and active front steering.
提出一种基于横摆力矩和主动前轮转向相结合的车辆横向稳定性控制方法,以横摆角速度和侧偏角为控制目标,利用前馈补偿和模糊控制产生横摆力矩和附加的前轮转角,通过控制制动力的分配以及对转向角的修正,使车辆转向行驶时的横摆角速度和侧偏角很好地跟踪参考模型。
3.
The Active Front Steering System(AFS) integrates a set of dual planetary gears mechanism on the steering column between the steering wheel and rack-pinion redirector,using for providing the superposition angle to front wheel,thus realizing the variable steering ratio function.
主动前轮转向系统(Active Front Steering System,简称AFS)在转向盘和齿轮齿条转向机之间的转向柱上集成了一套双行星齿轮机构,用于向前轮提供叠加转向角,从而实现变传动比功能。
4)  Active front wheel steering
主动前轮转向
1.
Then control objective and architecture for active front wheel steering system were proposed, feedforword and feedback control parts of active front wheel steering controller were designed and synthesized respectively.
建立了车辆横向动力学模型,在相平面上考察了车速、路面附着系数及前轮转角等对车辆横向稳定域的影响,提出了主动前轮转向控制系统的目标及结构,设计了横摆角速度H∞反馈和前馈控制器并进行综合。
5)  active front steering(AFS)
主动前轮转向
1.
A simplified model of the steering system incorporating vehicle dynamics is analyzed based on the structure of the active front steering(AFS) system,and a linear quadratic regulator(LQR) controller is proposed.
通过对前轮主动转向结构形式的分析和简化,建立了状态空间形式的主动前轮转向动力学模型。
2.
A new robust control of the active front steering(AFS) system was presented.
设计了一种主动前轮转向的鲁棒性控制。
6)  Four-wheel steering
四轮转向
1.
Analysis of four-wheel steering vehicle locomotion sunulation;
四轮转向车辆运动仿真分析
2.
Control of four-wheel steering vehicle based on neural network;
基于神经网络的四轮转向车辆控制研究
3.
Integrated Control of Vehicle Four-Wheel Steering and Active Suspension Systems
汽车四轮转向和主动悬架的综合控制研究
补充资料:四向四果
【四向四果】
  一、须陀洹向及须陀洹果,须陀洹华译为入流,即入圣人之流,此位须断尽三界八十八使见惑方能证得。当未断尽时皆为向,已断尽为果。
  二、斯陀含向及斯陀含果,斯陀含华译为一来,谓其当于欲界的天上人间,各来受生一次,此位断尽三界见惑外,须更断欲界思惑前六品,方能证得。当断一至五品时皆为向,已断尽第六品为果。
  三、阿那含向及阿那含果,阿那含华译为不来,谓不再来欲界受生死,此位须断尽三界见惑,及欲界九品思惑,方能证得。当断尽七八品时皆为向,已断尽第九品为果。
  四、阿罗汉向及阿罗汉果,阿罗汉华译为杀贼、应供、不生等义,谓永入涅槃,不再受分段生死,此位须断尽三界见惑,及欲界九品思惑,并色无色界八地七十二品思惑,方能证得。未断尽上二界七十二品时皆为向,已断尽则为果。
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