Rollover mitigation for a heavy commercial vehicle

Ryu, Y. I.; Kang, Daeoh; Heo, Seung-Jin; In, Joonhwan

doi:10.1007/s12239-010-0036-y

Cited by 12 publications

(10 citation statements)

References 2 publications

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“…Vehicle speed is set as 40, 80, and 120 km/h; that is, the rotating speed of IWM is 354, 707, and 1061 rpm. A higher vehicle speed means larger RSR excitation according to (4). Accordingly, the LTR of different vehicle speeds under the grade B FTF condition can be obtained, as shown in Figure 12.…”

Section: Factor Of Vehicle Speedmentioning

confidence: 96%

“…As one of the most important auto safety problems, vehicle rollover accidents have gained more attention in recent years [1]. Many researchers have conducted significant research on vehicle rollover with a traditional chassis structure [2][3][4]. However, most of the research is focused on the lateral dynamics and the classic three-degree-of-freedom model is adopted as the basis, without considering the effect of road excitation [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Study on the Rollover Characteristic of In-Wheel-Motor-Driven Electric Vehicles Considering Road and Electromagnetic Excitation

Tan

Wang

2016

Shock and Vibration

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For in-wheel-motor-driven electric vehicles, the motor is installed in the wheel directly. Tyre runout and uneven load can cause magnet gap deformation in the motor, which will produce electromagnetic forces that further influence the vehicle rollover characteristics. To study the rollover characteristics, a verified 16-degree-of-freedom rollover dynamic model is introduced. Next, the vehicle rollover characteristics both with and without electromagnetic force are analyzed under conditions of the Fixed Timing Fishhook steering and grade B road excitation. The results show that the electromagnetic force has a certain effect on the load transfer and can reduce the antirollover performance of the vehicle. Therefore, the effect of the electromagnetic force on the rollover characteristic should be considered in the vehicle design. To this end, extensive analysis was conducted on the effect of the road level, vehicle speed, and the road adhesion coefficient on the vehicle rollover stability. The results indicate that vehicle rollover stability worsens when the above-mentioned factors increase, the most influential factor being the road adhesion coefficient followed by vehicle speed and road level. This paper can offer certain theory basis for the design of the in-wheel-motor-driven electric vehicles.

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Section: Factor Of Vehicle Speedmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Study on the Rollover Characteristic of In-Wheel-Motor-Driven Electric Vehicles Considering Road and Electromagnetic Excitation

Tan

Wang

2016

Shock and Vibration

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“…The higher order sliding mode controller (SMC) is developed to avoid the risk of rollover and twisting algorithm is implemented to guarantee the stability of the vehicle [8]. The active rollover control technique is highlighted in HDV to reduce accidents [9]. The payload changes can significantly affect the dynamics of HDV.…”

Section: Introductionmentioning

confidence: 99%

Simulation study on ride comfort enhancement for a heavy duty vehicle with fractional order sliding mode controller

Yuvapriya

Lakshmi

2020

SN Appl. Sci.

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The main goal of vehicle active suspension system is to upgrade the ride quality and stability of heavy duty vehicle (HDV) regardless of road surface. The mathematical modelling of HDV with two degrees of freedom is developed and simulated in MATLAB/Simulink environment. The simple and effective control techniques such as proportional integral and derivative (PID) controller, sliding mode controller (SMC) and fractional order sliding mode controller (FOSMC) are designed to detach the vibration from the passenger under step, sinusoidal and random road profile. Literature reveals that the FOSMC can eliminate steady state error and chattering effect unlike SMC and PID. The dynamic analysis of designed controllers is examined in terms of time domain, frequency domain and ride comfort analysis as per ISO 2631. The stability of SMC and FOSMC is confirmed by Lyapunouv stability for three different road profiles. The FOSMC shows satisfactory simulation results than SMC, PID and passive suspension system in reducing suspension deflection and body acceleration of HDV to upgrade the ride quality. Further, the efficacy of proposed FOSMC is proved by comparing the simulation results against existing results of PID controller.

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“…Three different representations are used in the literature based on the vehicle's body parameters including lateral acceleration and roll angle, [11][12][13] suspension parameters [14][15][16] and tire deflection. [17][18][19] An RI is also proposed by Yoon and Yi 20 and used in many other studies, [21][22][23] which suggests a linear combination of lateral acceleration, roll angle, and roll rate as the effective states in a rollover. Also a dynamic rollover metric is introduced called the Dynamic Stability Index (DSI) which involves the effects of roll angular acceleration accompanied by lateral acceleration.…”

Section: Introductionmentioning

confidence: 99%

A general rollover index for tripped and un-tripped rollovers on flat and sloped roads

Ataei

Khajepour

Jeon

2017

Proceedings of the Institution of Mechanical Engineers, Part D:

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In order to develop a rollover prevention system, it is essential to have a reliable index that properly indicates real-time rollover danger during vehicle maneuvers. The existing rollover indices are mainly for un-tripped rollovers and have limitations in detecting tripped rollovers. This study introduces a general rollover index (GRI) for the detection of rollover in both tripped and un-tripped cases and also on flat and sloped roads. Based on the lateral load transfer ratio, the proposed index is analytically derived in terms of measurable vehicle parameters and state variables. The general rollover index considers both lateral and vertical road inputs and thus can indicate tripped rollovers in the instance of curbs, soft soil or bumps. Sensitivity analysis for the proposed index is also provided to evaluate the effects of different vehicle parameters and different state variables on tripped and un-tripped rollovers. The introduced index can be used not only for the development of active rollover prevention systems, but also for rollover analysis and design of vehicles. The performance of the introduced general rollover index is validated through simulations using a high-fidelity CarSim model for a SUV.

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Rollover mitigation for a heavy commercial vehicle

Cited by 12 publications

References 2 publications

Study on the Rollover Characteristic of In-Wheel-Motor-Driven Electric Vehicles Considering Road and Electromagnetic Excitation

Study on the Rollover Characteristic of In-Wheel-Motor-Driven Electric Vehicles Considering Road and Electromagnetic Excitation

Simulation study on ride comfort enhancement for a heavy duty vehicle with fractional order sliding mode controller

A general rollover index for tripped and un-tripped rollovers on flat and sloped roads

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