Dynamic Modeling of Hydraulic Power Steering System with Variable Ratio Rack and Pinion Gear

Zhang, Nong; Wang, Miao

doi:10.1299/jsmec.48.251

Cited by 19 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The signals present in the steering simulator include: (i) The angular displacement of the dashboard motor which is measured with a three-phase resolver built into the motor system with a resolution of 1×10 5 …”

Section: Sensorsmentioning

confidence: 99%

“…Wahl et al [2] modeled the electric power assisted steering system as well as designed control architecture with parameter sensitivity. Zhang and Wang [5] provide a comprehensive mathematical model of a hydraulic power steering system equipped with a variable ratio rack and pinion gear. The system dynamic characteristics are investigated and its forced vibrations are compared with those obtained from a system with a constant ratio rack and pinion gear.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Real Time Re-Configurable Steering Simulator for System Design Studies

Iyasere

Black

Kinstle

et al. 2007

2007 American Control Conference

View full text Add to dashboard Cite

The automotive steering system plays an important role in determining the behavioral dynamics of the operator/vehicle interface. The system's primary function is to transmit the driver commanded steering wheel angle to the road wheels; The secondary function is to provide tire/road interface information back to the driver. The automotive chassis engineer needs a design tool to evaluate the effect of steering parameters on overall vehicle lateral behavior. In this paper, a real time steering simulator will be presented to emulate the behavior of automotive steering systems. The re-configurable steerby-wire simulator allows for the emulation of steering systems ranging from hydraulic, electric and steer-bywire in passenger, light duty, and commercial vehicles for pre-production and production models. To validate the simulator's functionality, a case study has been performed with numerical and experimental data. Comparisons between the simulator results and field data demonstrate a high level of correspondence. The re-configurable simulator evaluation tool represents a contribution to the field of automotive design.

show abstract

Section: Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Real Time Re-Configurable Steering Simulator for System Design Studies

Iyasere

Black

Kinstle

et al. 2007

2007 American Control Conference

View full text Add to dashboard Cite

show abstract

“…Both the SBW and the ESC use the steering motor to provide limited steering force, but the force is not sufficient to meet the steering requirements of rice transplanters under severe working conditions. The MVRS uses gears with variable ratio to achieve transmission ratio variation while retaining the original mechanical structure used by rice transplanters [5,6] . Therefore, the MVRS is appropriate for use in rice transplanters to deal with complicated and variable applied environments because of its low cost, high reliability and durability.…”

Section: Introduction mentioning

confidence: 99%

Geometrical design of variable ratio tooth profile based on Boolean subtraction operation and a novel modification method

Niu

Xin

et al. 2020

International Journal of Agricultural and Biological Engineering

View full text Add to dashboard Cite

Variable transmission ratio racks show great potential in rice transplanters as a key component of variable transmission ratio steering to balance steering portability and sensitivity. The objective of this study was to develop a novel geometrical design method to achieve quick, high-quality modeling of the free curvilinear tooth profile of a variable transmission ratio rack. First, a discrete envelope motion 3D model was established between the pinion-sector and the variable transmission ratio rack blank based on the mapping relationship between the rotation angle of the pinion-sector and the displacement of the rack, according to the variable transmission ratio function. Based on the loop Boolean subtraction operation, which removed the pinion-sector from the rack blank during all moments of the discrete motion process, the final complex changing tooth shape of the variable transmission ratio rack was enveloped. Then, since Boolean cutting residues made the variable ratio tooth surface fluctuant and eventually affected the precision of the model, this study proposed a modification method for establishing a smooth and continuous tooth profile. First, a novel fitting algorithm used approximate variable ratio tooth profile points extracted from the Boolean cutting marks and generated a series of variable ratio tooth profiles by utilizing B-spline with different orders. Next, based on a transmission stability simulation, the variable ratio tooth profile with optimal dynamic performance was selected as the final design. Finally, tests contrasting the transmission stability of the machining samples of the initial variable ratio tooth profile and the final variable ratio tooth profile were conducted. The results indicated that the final variable ratio tooth profile is more effective than the initial variable ratio tooth profile. Therefore, the proposed variable ratio tooth profile modeling and modification method for eliminating Boolean cutting residues and improving surface accuracy is proved to be feasible.

show abstract

“…In recent years, a number of researches have been carried out for the dynamic modeling of the vehicle power steering system. In 2005, Zhang and Wang 4 presented a highly nonlinear HPS system model and its free and forced vibration analysis was carried out. Also, the mechanism subsystem, HPS supply line subsystem, and the rotary spool valve subsystem are modeled in detail and then integrated into the completed system model kinetically.…”

Section: Introductionmentioning

confidence: 99%

Modeling and performance evaluation of a heavy-duty vehicle based on the hydraulic power steering system

Jeyed

Ghaffari

2019

SIMULATION

View full text Add to dashboard Cite

In most mathematical models that are presented for vehicle performance analysis, the dynamic role of the steering system is ignored and causes the steering effect on the vehicle overall response to be neglected. In this article, the main goal is the performance evaluation of a four-axle heavy-duty vehicle using the modeling and simulation of the vehicle and the hydraulic power steering (HPS) system. For this purpose, using Newton’s method, a 20-degrees-of-freedom (20-DOF) nonlinear model of the heavy vehicle is developed, and verified by the TruckSim software results. Then, the comprehensive 4-DOF model of the HPS system, including the steering handwheel angle, rack displacement, and left- and right-hand wheel angles, is presented. Finally, the dynamic model of the heavy-duty vehicle and the HPS system are combined and a 24-DOF dynamic model is simulated in MATLAB software. In order to evaluate the vehicle performance, the simulation on two maneuvers, namely parking and low-speed lane change maneuvers with load and no-load, are carried out. The simulation results demonstrate the desirable performances of the heavy vehicle based on the HPS system on the parking and low-speed maneuvering. Also, the research results provide a better understanding of the vehicle handling considering the nonlinear model of the heavy-duty vehicle based on the HPS system.

show abstract

Dynamic Modeling of Hydraulic Power Steering System with Variable Ratio Rack and Pinion Gear

Cited by 19 publications

References 17 publications

A Real Time Re-Configurable Steering Simulator for System Design Studies

A Real Time Re-Configurable Steering Simulator for System Design Studies

Geometrical design of variable ratio tooth profile based on Boolean subtraction operation and a novel modification method

Modeling and performance evaluation of a heavy-duty vehicle based on the hydraulic power steering system

Contact Info

Product

Resources

About