A novel electro-hydraulic servo steering system for Ackermann steering of heavy multi-axle vehicle

Zhang, Zhizhong; Du, Haibo; Chen, Shumei; Li, Yuzheng; Wang, Han

doi:10.1177/09544070211063302

Cited by 2 publications

(3 citation statements)

References 15 publications

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“…Implementing the complete Ackermann equation shows a huge number of advantages, especially for heavy multi-axle vehicles in terms of vehicle maneuverability, and this is demonstrated by Zhang et al (2022) [3]. For example, an incredibly reduced tire skid is observed by implementing the complete Ackermann equation.…”

Section: Introduction 1literature Reviewmentioning

confidence: 98%

“…For example, an incredibly reduced tire skid is observed by implementing the complete Ackermann equation. Moreover, the enhanced dynamic stability of the heavy-duty multi-axle vehicle is another advantage of the complete Ackermann strategy [3]. To meet the requirement of the Ackermann equation on the heavyduty vehicles, a two degrees of freedom (DOF) electro-hydraulic servo steering system (TDEHSSS) is developed and implemented by Zhang et al (2022) [3].…”

Section: Introduction 1literature Reviewmentioning

confidence: 99%

“…Moreover, the enhanced dynamic stability of the heavy-duty multi-axle vehicle is another advantage of the complete Ackermann strategy [3]. To meet the requirement of the Ackermann equation on the heavyduty vehicles, a two degrees of freedom (DOF) electro-hydraulic servo steering system (TDEHSSS) is developed and implemented by Zhang et al (2022) [3]. The results of the implementation of the complete Ackermann strategy on the heavy-duty multi-axle vehicle are represented by Zhang et al (2022) in terms of steering characteristics and tire wear [3].…”

Section: Introduction 1literature Reviewmentioning

confidence: 99%

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Simulation and Validation of an 8 × 8 Scaled Electric Combat Vehicle

Kim,

El-Gindy,

El-Sayegh

2024

Machines

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In this research, an 8 × 8 scaled electric combat vehicle (SECV) is built. The scaled vehicle is evaluated in both experimental and simulated methods to analyze its performance. The scaled vehicle is developed to apply the Ackermann condition by implementing the individual steering and individual wheel speed control system at low speed. Individual eight-wheel rotational velocity control and individual eight-wheel steering angle control in real time are developed and installed on the remotely controlled scaled vehicle to meet a perfect Ackermann condition. Three different steering scenarios are developed and applied: a traditional steering scenario (first and second axle steering), fixed third axle steering scenario (first, second, and fourth axle steering), and all-wheel steering scenario. Stationary evaluation, turn radius evaluation, and double lane change evaluation are conducted to verify the application of the Ackermann condition. The differences between the experimental results and the simulated data are within an acceptable range. An important demonstration of this research is the novel validation of physical and simulated data in the application of the Ackermann condition for eight-wheel steering and velocity control for the three steering scenarios.

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Section: Introduction 1literature Reviewmentioning

confidence: 98%

Section: Introduction 1literature Reviewmentioning

confidence: 99%

Section: Introduction 1literature Reviewmentioning

confidence: 99%

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Simulation and Validation of an 8 × 8 Scaled Electric Combat Vehicle

Kim,

El-Gindy,

El-Sayegh

2024

Machines

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Development of Novel Steering Scenarios for an 8X8 Scaled Electric Combat Vehicle

Kim¹,

El–Gindy²,

El-Sayegh³

2023

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">This work investigates the steering and wheel speed control of a completely custom built 8x8 scaled electric combat vehicle (SECV) which has been constructed to meet the Ackermann condition at low speeds. During remote control operation the scaled vehicle is capable of continuously maintaining and varying the individual wheel speed and individual wheel steering angles of all eight wheels in real time. Several steering scenarios have been developed including traditional (front 2-axle steering), fixed third axle (first, second and fourth axle steering), all wheel steering and crab steering (all wheels are parallel with same steering angle). The traditional, two axle steering scenario is experimentally tested for accuracy in this work with planned future research for experimental analysis of the other steering configurations.</div><div class="htmlview paragraph">This work is conducted using Arduino software to control the physical SECV and TruckSim software to simulate the dynamics of the vehicle. The results obtained from the physical testing of the wheel angular velocity were validated using a handheld tachometer device. The steering angle measurement of each wheel was validated using linear actuator sensors. It was seen that the physical results from the SECV are within acceptable range of the theoretical data calculated and simulated in Trucksim Software. The continuous steering method is applied by investigating the relationship between the steering angles of all eight wheels while operating the steering system from zero to the maximum steering angle of the 1st axle inner wheel during a turn. A major contribution of this work is a novel physical experimentation of the continuous Ackermann relationship for eight wheels. During testing of the traditional two-axle steering configuration the metrics of performance that were reviewed include: wheel speed, center velocity, yaw rate, and eight-wheel steering angles. With these metrics being compared with the Trucksim simulation, the experimental results obtained from the scaled 8x8 electric combat vehicle are a solid foundation for the development of future full-size 8x8 electric combat vehicles.</div></div>

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A novel electro-hydraulic servo steering system for Ackermann steering of heavy multi-axle vehicle

Cited by 2 publications

References 15 publications

Simulation and Validation of an 8 × 8 Scaled Electric Combat Vehicle

Simulation and Validation of an 8 × 8 Scaled Electric Combat Vehicle

Development of Novel Steering Scenarios for an 8X8 Scaled Electric Combat Vehicle

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