Development of Rollover Prevention System Using Unified Chassis Control of ESP and CDC Systems

Yoon, Sangho; Jung, Ji-Hyun; Koo, BonKyung; Kim, Dongshin

doi:10.4271/2006-01-1276

Cited by 5 publications

(6 citation statements)

References 6 publications

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“…The SDC-20 system showed up to a 50% improvement in peak roll velocity during the described test. Similar solutions are given by Ahmadian and Simon [1] and Yoon et al [28].…”

Section: Literature Studysupporting

confidence: 67%

Improving off-road vehicle handling using an active anti-roll bar

Cronje

Schalk

2010

Journal of Terramechanics

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To design a vehicle's suspension system for a specific, well defined road type or manoeuvre is not a challenge any more. As the application profile of the vehicle becomes wider, it becomes more difficult to find spring and damper characteristics to achieve an acceptable compromise between ride comfort and handling. For vehicles that require both good on-and off-road capabilities, suspension design poses a significant challenge. Vehicles with good off-road capabilities usually suffer from poor on-road handling. These vehicles are designed with a high centre of gravity due to the increased ground clearance, soft suspension systems and large wheel travel to increase ride comfort and ensure traction on all the wheels. All of these characteristics contribute to bad handling and increased rollover propensity even on good level roads. It is expect from these vehicles to have the same handling characteristics as a normal on-road vehicle. This paper analyses the use of an active anti-roll bar as a means of improving the handling of an off-road vehicle without sacrificing ride comfort. The proposed solution is simulated, designed, manufactured, implemented and tested to quantify the effect of the active anti-roll bar on both the handling and ride comfort of an off-road vehicle.

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“…The SDC-20 system showed up to a 50% improvement in peak roll velocity during the described test. Similar solutions are given by Ahmadian and Simon [1] and Yoon et al [28].…”

Section: Literature Studysupporting

confidence: 67%

Improving off-road vehicle handling using an active anti-roll bar

Cronje

Schalk

2010

Journal of Terramechanics

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“…From 9, the lateral tire forces defined on the sensor frame but applied to the vehicle body through its front and rear roll centers can be computed as in the following (11) and the vehicle body roll acceleration defined in the sensor frame can be estimated as in the following (12) where the coefficients are defined as A similar discussion could lead to the following for pitch acceleration estimation (13) where the coefficients and can be similarly obtained.…”

Section: Roll Sensing Based On Vehicle Body Modelmentioning

confidence: 99%

“…This paper provides some extension of the work developed in [7] which is similar in principle to [5], [6] and ARP but with a different control strategy. In addition to ESC-based brake control, other chassis control systems have also been pursued to mitigate rollovers, see [3], [9], [10], [11], [12] and [13] for more details.…”

Section: Introductionmentioning

confidence: 99%

An Enhancement to an Electronic Stability Control System to Include a Rollover Control Function

Lǚ

Messih

Salib

et al. 2007

SAE Technical Paper Series

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This paper proposes a method to enhance existing electronic stability control systems such that a certain level of rollover mitigation performance is achieved. Such an enhancement is conducted through a control algorithm using only the standard ESC sensors. The analysis presented here reveals that a rollover mitigation system such as this will face a trade-off between the vehicle's responsiveness and the control robustness due to error in the roll dynamics model and state estimation.

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“…Several different control methods are used to control the CDC system, such as sky-hook control [20,21], adaptive control [22,23], optimal control [24], robust control [25], sliding mode control [26], fuzzy control [27], preview control [28], and model predictive control [29]. In recent years, several studies have been performed to develop additional functions of the CDC system, which includes intervention avoidance [30], roll-over prevention [31], and braking force improvement [32]. While an electronically controlled CDC system can improve the performance and stability of a vehicle, the possibility of fault occurrences is substantially increased because of the increased complexity of the system and the existence of additional parts such as sensors, actuators, and processes.…”

Section: Introductionmentioning

confidence: 99%

Sensor fault detection and isolation algorithm for a continuous damping control system

Kim

Lee

2011

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper presents an analytical sensor fault-detection and isolation algorithm for the vertical accelerometers of a continuous damping control (CDC) system, which are essential but vulnerable components in the CDC system. Because the sensor configuration of the target CDC system does not provide sufficient redundancy for fault diagnosis, two different vehicle suspension models, a modified full car model and a roll-and-pitch plane model, are derived and combined to establish analytical redundancy. Parity equations for the vertical motion of a sprung mass are derived using the combined model and applied in order to detect faults of the vertical accelerometers. In order to isolate the faults properly in practical situations, this paper proposes a fault isolation algorithm which calculates estimates of the vertical acceleration at the centre of gravity of the sprung mass using vertical acceleration signals and compares the residuals of these estimates. This paper also provides a detailed analysis regarding the detectability and isolability of vertical accelerometer faults. An adaptive threshold method is proposed to improve the performance of the suggested fault-detection and isolation algorithm. Simulation and test results demonstrate the feasibility and effectiveness of the proposed algorithm.

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Development of Rollover Prevention System Using Unified Chassis Control of ESP and CDC Systems

Cited by 5 publications

References 6 publications

Improving off-road vehicle handling using an active anti-roll bar

Improving off-road vehicle handling using an active anti-roll bar

An Enhancement to an Electronic Stability Control System to Include a Rollover Control Function

Sensor fault detection and isolation algorithm for a continuous damping control system

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