scholarly journals Improvement of Vehicle Handling Performance due to Toe and Camber Angle Change of Rear Wheel by Using Double Knuckle

2013 ◽  
Vol 21 (1) ◽  
pp. 121-127 ◽  
Author(s):  
Jeonghyun Sohn ◽  
Seongjun Park
Keyword(s):  
Rear Wheel ◽  
Vehicle Handling ◽  
Handling Performance ◽  
Camber Angle ◽  
Angle Change

scholarly journals On the handling performance of a vehicle with different front-to-rear wheel torque distributions

2018 ◽  
Vol 57 (11) ◽  
pp. 1685-1704 ◽  
Author(s):  
Basilio Lenzo ◽  
Francesco Bucchi ◽  
Aldo Sorniotti ◽  
Francesco Frendo
Keyword(s):  
Rear Wheel ◽  
Handling Performance ◽  
Wheel Torque

scholarly journals Vehicle Cornering Performance Evaluation and Enhancement Based on CAE and Experimental Analyses

2019 ◽  
Vol 9 (24) ◽  
pp. 5428
Author(s):  
Hsing-Hui Huang ◽  
Ming-Jiang Tsai
Keyword(s):  
Steady State ◽  
Suspension System ◽  
Lateral Acceleration ◽  
Phase Lag ◽  
Handling Performance ◽  
Yaw Rate ◽  
Full Vehicle ◽  
Camber Angle ◽  
Simulation Results ◽  
Initial Camber

A full-vehicle analysis model was constructed incorporating a SLA (Short Long Arm) strut front suspension system and a multi-link rear suspension system. CAE (Computer Aided Engineering) simulations were then performed to investigate the lateral acceleration, yaw rate, roll rate, and steering wheel angle of the vehicle during constant radius cornering tests. The validity of the simulation results was confirmed by comparing the computed value of the understeer coefficient (Kus) with the experimental value. The validated model was then used to investigate the steady-state cornering performance of the vehicle (i.e., the roll gradient and yaw rate gain) at various speeds. The transient response of the vehicle was then examined by means of simulated impulse steering tests. The simulation results were confirmed by comparing the calculated values of the phase lag, natural frequency, yaw rate gain rate, and damping ratio at various speeds with the experimental results. A final series of experiments was then performed to evaluate the relative effects of the cornering stiffness, initial toe-in angle, and initial camber angle on the steady-state and transient-state full-vehicle cornering handling performance. The results show that the handling performance can be improved by increasing the cornering stiffness and initial toe-in angle or reducing the initial camber angle.

A comprehensive active-steering control method for improvement of vehicle handling performance

2017 ◽  
Vol 232 (3) ◽  
pp. 413-425 ◽  
Author(s):  
Weimiao Yang ◽  
Pengpeng Feng ◽  
Jianwu Zhang
Keyword(s):  
Linear System ◽  
Feedback Linearization ◽  
Control Method ◽  
System Control ◽  
Steering Control ◽  
Vehicle Handling ◽  
Handling Performance ◽  
Non Linear ◽  
Tyre Modelling ◽  
Non Linear System

Non-linear system control has always been a difficult point for vehicle stabilization. To improve the vehicle handling performance, a comprehensive active-steering control method is proposed and derived. Different from traditional strategy, this new controller is based on a piecewise tyre modelling ideology combined with feedback linearization controlling method. In the linear region of wheel–terrain contact, vehicle dynamic system turns to be a linear system, an optimal control is designed for the sake of rapid response in tracking desired values. In the non-linear region, where the controlling difficulty always lies in, the tyre lateral force is described by a new polynomial formula model, which is simpler than magic formula model and more accurate than linear model. This new tyre modelling ideology ensures the feasibility of feedback linearization method in non-linear system control. To verify the proposed controller, a numerical seven-degrees-of-freedom vehicle model is built and validated by standard input simulation. Then, simulation under limit conditions, including high friction case and low friction case, are conducted and results are presented and discussed. Compared with optimal controller and free-control method, comprehensive controller has a much more desirable applicability in both cases and greatly improves the vehicle handling performance.

2302 A study of vehicle handling performance on snow road using tire contact pressure analysis

2014 ◽  
Vol 2014.23 (0) ◽  
pp. 83-86
Author(s):  
Takahiro Yokoyama ◽  
Koji hiratsuka ◽  
Rin Watanabe ◽  
Shinya Notomi ◽  
Shigeaki Suzuki
Keyword(s):  
Contact Pressure ◽  
Vehicle Handling ◽  
Handling Performance ◽  
Pressure Analysis

The Use of Accident Data in Studying Vehicle Handling Performance

1975 ◽  
Vol 189 (1) ◽  
pp. 243-258 ◽  
Author(s):  
I. S. Jones
Keyword(s):  
Weight Ratio ◽  
Control Measures ◽  
Lateral Acceleration ◽  
Loss Of Control ◽  
Accident Rate ◽  
Vehicle Handling ◽  
Handling Performance ◽  
Handling Characteristics ◽  
Accident Causation ◽  
Accident Data

A study to establish the relation between vehicle handling performance and accident causation. Since deficiencies in handling are likely to be associated with accidents involving loss of control, measures of handling which are likely to express proneness to loss of control are first suggested; emphasis is placed on simplicity of measurement to allow as many different models of car as possible to be included in the study. Accident rates for the various types of accident which are likely to be influenced by these parameters are then determined by model of car. The effect of other factors, such as variation in driver characteristics between different models of car on these rates is then assessed so that the relation between handling characteristics and accident frequency can be defined. Finally, the relative importance of the various measures of handling suggested are assessed. The results suggest that there is a definite relation between handling performance and accident causation although it is relatively small when compared to driver effects. In explaining the variation in the accident rate between different models of car, driver effects account for as much as 70 per cent; if driver effects are removed from the accident rate then handling parameters explain between 35 and 40 per cent of the remaining variation between models of car. The important parameters appear to be weight, a measure of the change in understeer as a function of lateral acceleration and power to weight ratio.

Sign in / Sign up

Export Citation Format

Share Document