Electric Power Steering on Low Friction Coefficient Road

Zhao, Linfeng

doi:10.3901/jme.2011.02.109

Cited by 6 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(1) When the controller intervenes and applies the additional yaw moment control, it should be able to effectively control the sideslip of the vehicle, that is, to curb the sideslip angle of the centroid of the vehicle within a stable range and to make the yaw rate track the ideal yaw rate under the same working condition as far as possible, so that the vehicle is easy to control. It can be known from [1] that on the ice and snow pavement, the limit eigenvalue of the sideslip angle of the vehicle mass center is about ±2…”

Section: Evaluation Standard Of Vehicle Stability Control Systemmentioning

confidence: 99%

“…In the cold climate, pavement freezing often occurs in the mountainous area of southwest China and the humid area of South China. e lateral instability is likely to occur when the vehicle is running on icy pavements and the braking distance increases, resulting in a sharp decline in driving safety [1]. Especially, this kind of harsh road condition is more dangerous when it appears in curved sections where accidents are more frequent.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Simulation Study for Lateral Stability Control of Vehicles on Icy Asphalt Pavement

Zhu

Wang

et al. 2022

Journal of Advanced Transportation

View full text Add to dashboard Cite

Black ice is an ice layer formed by freezing rain or accumulated water on the asphalt pavement surface in cold weather. This ice layer completely shields the texture structure of the pavement and destroys the original microstructure. The direct contact between the automobile tire and the ice surface leads to a sharp decrease in the adhesion coefficient, so the automobile is prone to lateral instability on the icy pavement. In this paper, the simulation model of the icy pavement is established in Matlab/Simulink to verify the control effect of the lateral stability controller based on the Electronic Stability Program under two steering limit conditions. The results show that the vehicle without a lateral stability controller will lose stability and sideslip even when it is steering at low speed on the icy pavement, and the lateral stability controller can effectively control the yaw rate of the vehicle when it is steering, which greatly reduces the offset of the sideslip angle of the centroid and inhibits the lateral acceleration exceeding the ice surface limit, which improves the maneuverability and stability of the vehicle under the freezing limit condition. The application of the controller is of great significance to improve the driving safety of the regional asphalt pavement. Due to the low adhesion coefficient of the icy pavement and the limited braking force and additional yaw moment of the tire provided by the adhesion force, the vehicle with a lateral stability controller is still likely to lose stability under the critical condition of medium or high-speed single shift line.

show abstract

Section: Evaluation Standard Of Vehicle Stability Control Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Simulation Study for Lateral Stability Control of Vehicles on Icy Asphalt Pavement

Zhu

Wang

et al. 2022

Journal of Advanced Transportation

View full text Add to dashboard Cite

show abstract

“…where T cmax is the maximum resistance torque of the steering wheel; h + is the efficiency of the steering gear; i j is the transmission ratio of the reduction mechanism; h j is the transmission efficiency of the reduction mechanism; K t is the electric torque coefficient of the assist motor. The ideal assist torque of assist motor can be obtained from equation (7). Assist coefficient can be obtained from equations (8) and (9).…”

Section: Power Assist Current Characteristic Curve Designmentioning

confidence: 99%

“…The ideal assist torque of assist motor can be obtained from equation (7). Assist coefficient can be obtained from equations (8) and (9).…”

Section: Power Assist Current Characteristic Curve Designmentioning

confidence: 99%

“…To solve this problem, Masahiko et al 5,6 improved the steering performance of the vehicle on low-adhesion roads through steering angle feedback control. Zhao et al 7,8 graded the adhesion coefficient, and a control strategy of modified assist current based on road surface adhesion coefficient is designed. Fan et al 9,10 used fuzzy control to obtain the compensation assist current.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel electric power steering control strategies of commercial vehicles considering adhesion coefficient

Fan

et al. 2014

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The steering resistance torque of commercial vehicles on low adhesion pavement is greatly reduced. Therefore, while driving on low adhesion pavement, the use of traditional EPS control strategies without considering adhesion coefficient will lead to driver’s road feeling being reduced or even lost, endangering driving safety. In this paper, the relationship between adhesion coefficient and steering resistance torque is researched through theoretical analysis and simulation. Two novel EPS control strategies of commercial vehicles considering adhesion coefficient are designed. The first control strategy calculates assist coefficient through steering resistance torque under different working conditions, and assist coefficient is used to adjust the assist torque on the pavements with different adhesion coefficients. The second control strategy applies a compensation current related to adhesion coefficient on the basis of traditional EPS control strategy to improve the road feeling of low adhesion roads. Finally, a joint simulation model of TruckSim/Simulink is established, the two novel control strategies are simulated and verified. The simulation results show that both the two novel control strategies can improve the road feeling of the driver and improve the driving safety on low-adhesion road while ensuring the steering portability.

show abstract

EPS Control Strategy of Commercial Vehicles Considering Adhesion Coefficient

Fan

et al. 2022

Lecture Notes in Electrical Engineering

View full text Add to dashboard Cite

Electric Power Steering on Low Friction Coefficient Road

Cited by 6 publications

References 0 publications

A Simulation Study for Lateral Stability Control of Vehicles on Icy Asphalt Pavement

A Simulation Study for Lateral Stability Control of Vehicles on Icy Asphalt Pavement

Novel electric power steering control strategies of commercial vehicles considering adhesion coefficient

EPS Control Strategy of Commercial Vehicles Considering Adhesion Coefficient

Contact Info

Product

Resources

About