Research on Algorithm to Improve Performance of Fluid-Assisted Polishing

2014 ◽  
Vol 602-605 ◽  
pp. 316-319
Author(s):  
Shao Song Wan ◽  
Jian Cao ◽  
Cong Yan
Keyword(s):  
Steering System ◽  
Steering Wheel ◽  
Response Property ◽  
Work Piece ◽  
Vehicle Handling ◽  
Directional Stability ◽  
Oil Tank ◽  
Input Response ◽  
Basic Experiments ◽  
Polishing Fluid

In present work, the distribution of electric field strength on the surface of work piece was analyzed through ANSYS and theoretical equation. Moreover, the attractive force acting on particles that disperses in ER polishing fluid was calculated. A series of basic experiments were conducted, it is aimed to find out the effective process parameters on the surface roughness using the work piece as electrode. Vehicle handling directional stability has been more and more important, experiments for steering wheel corner step input response, steering oil tank response property, steady state turning and steering angle of all steering wheels were conducted in this paper, the experimental results show that multi-wheel steering system can fulfill its function very well and reach target angle, it provides a new method for researching for the vehicle handling directional stability.

Research on Algorithm to Improve Performance of Multi-Wheel Steering Control System

2014 ◽  
Vol 989-994 ◽  
pp. 3177-3180
Author(s):  
Shao Song Wan ◽  
Jian Cao ◽  
Qun Song Zhu ◽  
Cong Yan
Keyword(s):  
Network Performance ◽  
Capacity Utilization ◽  
Steering System ◽  
Steering Wheel ◽  
Response Property ◽  
Steering Control ◽  
Vehicle Handling ◽  
Directional Stability ◽  
Oil Tank ◽  
Input Response

There are many factors that can affect network performance, such as delay, packet loss and capacity utilization. Vehicle handling directional stability has been more and more important, experiments for steering wheel corner step input response, steering oil tank response property, steady state turning and steering angle of all steering wheels were conducted in this paper, the experimental results show that multi-wheel steering system can fulfill its function very well and reach target angle, it provides a new method for researching for the vehicle handling directional stability.

Influence of Front Wheel Alignment Parameters on Handling Stability of Vehicle Based on Joint Simulation

2014 ◽  
Vol 716-717 ◽  
pp. 832-836
Author(s):  
Hui Wang ◽  
Xiao Zhi Wang
Keyword(s):  
Steering System ◽  
Front Wheel ◽  
Front Axle ◽  
Lateral Acceleration ◽  
Steering Wheel ◽  
Initial Alignment ◽  
Vehicle Handling ◽  
Joint Simulation ◽  
Hydraulic Steering ◽  
Lane Change Test

This paper uses AMESim software to establish simulation model of SGA170 mine truck full hydraulic steering system, and validates the correctness of the proposed model. Through the joint simulation, vehicle steady circular test, double lane change test and steering wheel angle input test are verified. By changing the initial alignment parameters of front axle, vehicle handling performance are tested through the same simulation test, and yaw velocity, and the curves of lateral acceleration and vehicle roll angle describing vehicle handling stability are obtained, which provides a reference for the design and improvement of the similar mine truck selection.

Reliable Subjective Assessment of Vehicle Handling by Drivers: Is it an Elusive Goal?

2001 ◽  
Author(s):  
D. A. Crolla ◽  
J. P. Whitehead
Keyword(s):  
Subjective Assessment ◽  
Whole Body ◽  
Steering Wheel ◽  
Vehicle Handling ◽  
Dynamic Events ◽  
Safety Systems

Abstract Much progress has been made over recent years in understanding many aspects of driver-vehicle interactions, for example, linked to ergonomics/comfort of the cabin, influence of improved safety systems, interactions with ITS systems etc. However, in more dynamic situations, similar levels of understanding have not been achieved. Such dynamic events range from whole body motions such as vehicle handling and ride to component behaviour including, in particular, steering wheel feel and gearshift quality.

scholarly journals Electronic Control System for Steer by Wire

2021 ◽  
Vol 9 (VI) ◽  
pp. 4161-4166
Author(s):  
Eeshan Ranade
Keyword(s):  
Electric Power ◽  
Engine Performance ◽  
Steering System ◽  
Electric Power System ◽  
Driving Safety ◽  
Steering Wheel ◽  
Hydraulic Systems ◽  
Compact Structure ◽  
Steer By Wire ◽  
Improved Performance

Automobile industry’s focus is on efficiency, safety and performance has resulted in the rapid introduction of electronics in vehicle safety systems and engine management. Mechanical and Hydraulic systems are now gradually being replaced by electronic controllers to achieve the objectives of optimizing power consumption, improving driver convenience, and maximizing driver safety resulting in an overall improved performance and experience. Vehicle steering systems have transitioned from mechanical to hydraulic power to an electric power assisted steering system and now to the state of the art, Steer by Wire (SbW) system. Traditional mechanical systems included a steering wheel, column, gear, rack and pinion and did not support any power steering. The next generation hydraulic systems were more stable, safer and required comparatively lesser effort. Electric or DC motors drove the Electric Power System addressing the drawbacks of the hydraulic systems especially those related to environment and acoustics with the added advantage of a compact structure and power-on-demand engine performance. By-wire steering technologies was originally introduced in the Concord aircraft in 1970s. The SbW is a steering system with no steering column. The mechanical interface between the steering wheel and the wheels is replaced with by-wire electrical connection/electronic actuators. SbW system has significant advantages in terms of driving safety due to the availability of the steering command in electronic form and the removal of the steering shaft, cruising comfort with driving manoeuvring due to no space constraint and favourable to the environment with the non-usage of hydraulic oils.

scholarly journals Experimental Study on Antivibration Control of Electrical Power Steering Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Zhaojian Wang ◽  
Hamid Reza Karimi
Keyword(s):  
Control Strategy ◽  
Controller Design ◽  
Electrical Power ◽  
Steering System ◽  
Steering Wheel ◽  
Bench Test ◽  
Power Steering ◽  
Motor Controller ◽  
Hydraulic Steering ◽  
Wheel Vibration

We focus on the antivibration controller design problem for electrical power steering (EPS) systems. The EPS system has significant advantages over the traditional hydraulic steering system. However, the improper motor controller design would lead to the steering wheel vibration. Therefore, it is necessary to investigate the antivibration control strategy. For the implementation study, we also present the motor driver design and the software design which is used to monitor the sensors and the control signal. Based on the investigation on the regular assistant algorithm, we summarize the difficulties and problems encountered by the regular algorithm. After that, in order to improve the performance of antivibration and the human-like steering feeling, we propose a new assistant strategy for the EPS. The experiment results of the bench test illustrate the effectiveness and flexibility of the proposed control strategy. Compared with the regular controller, the proposed antivibration control reduces the vibration of the steering wheel a lot.

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