Semi‐Active Steering Damper Control for Two‐Wheeled Vehicles

Filippi, Pierpaolo De; Tanelli, Mara; Corno, Matteo

doi:10.1002/9781118536391.ch10

Cited by 5 publications

(8 citation statements)

References 13 publications

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“…Semi-active dampers consist of a piston and a fluid which viscosity can be adjusted using an electromagnetic field [36]. The semi-active damping principle is currently being researched for automotive applications [37][38][39]. One of the semi-active dampers used in arm support systems is the magnetorheological (MR) damper.…”

Section: Semi-active Dampingmentioning

confidence: 99%

Overview of Actuated Arm Support Systems and Their Applications

et al. 2013

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Arm support systems provide support throughout daily tasks, training or in an industrial environment. During the last decades a large diversity of actuated arm support systems have been developed. To analyze the actuation principles in these systems, an overview of actuated arm support systems is provided. This overview visualizes the current trends on research and development of these support systems and distinguishes three categories. These categories depend mainly on the functional status of the user environment, which defines the specifications. Therefore, the actuated arm support systems are classified according to their user environment, namely: ambulatory, rehabilitation and industrial. Furthermore, three main actuation principles and three mechanical construction principles have been identified

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Section: Semi-active Dampingmentioning

confidence: 99%

Overview of Actuated Arm Support Systems and Their Applications

et al. 2013

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“…Wobble is a high frequency (4-10 Hz) instability mode consisting of an oscillation of the handlebar around the steering axis. Many accidents can be attributed to this eigenmode, since it usually results in loss of control the vehicle [16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Design of a Motorcycle Steering Damper for a Safer Ride

et al. 2020

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Powered-two-wheelers (PTWs) are increasingly popular because of their lower cost compared to cars, and therefore the riders’ exposure risk is increasing. Due to their complex dynamics characterized by high non-linearity and inherent instability, PTWs are more difficult to control compared to four-wheeled vehicles. Wobble is a high-frequency instability mode affecting the steering assembly of the PTW, and which often causes the rider to lose control and crash when it occurs. In this paper, we present the design of a new motorcycle semi-active steering damper integrated into the steering column and utilizing a magnetorheological fluid (MRF) for variable damping torque. An analytical model of the concept was first used to perform the preliminary sizing, followed by concept validation using a 3D FE multiphysics magnetic-fluid analysis. The final innovative design offers several advantages compared to traditional steering dampers: (i) a wide range of adjustable damping torque values, with a multiplication factor up to 10 with a maximum electrical current of 2 A; (ii) total integration into the motorcycle steering column enabled by its axial design and limited radius; (iii) a simple chamber geometry that allows for easy manufacture; (iv) longer seal life due to the absence of direct contact between seals and the MRF.

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“…One of the effective ways to stabilize motorcycle handling is to use a conventional steering damper. To stabilize the weave and wobble modes simultaneously, alternative steering dampers (1)- (4) have been investigated. Many studies on autonomous control have been presented such as reference (5) - (7), however, interactions between the rider and the motorcycle have not been considered.…”

Section: Introductionmentioning

confidence: 99%

Front-Steering Assist Control System Design for a Motorcycle Stabilization during Braking

Murakami

Nishimura

Shan-an

2012

JSDD

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In braking situations, it is known that a motorcycle may become unstable. In this paper, a front-steering assist control is designed to stabilize a motorcycle during braking. The rider-motorcycle system with its pitching motions is linearized around an equilibrium point of quasi-steady state straight running with constant deceleration. From the viewpoints of eigenvalues and frequency responses, the linearized model is analyzed and a reduced-order model is obtained to design the control system by using H ∞ control theory. By carrying out simulations, it is demonstrated that the control system can stabilize a motorcycle during braking when receiving a sudden disturbance from the front wheel, and its applicable scope is discussed for several situations including different maneuvering of a rider.

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Semi‐Active Steering Damper Control for Two‐Wheeled Vehicles

Cited by 5 publications

References 13 publications

Overview of Actuated Arm Support Systems and Their Applications

Overview of Actuated Arm Support Systems and Their Applications

Design of a Motorcycle Steering Damper for a Safer Ride

Front-Steering Assist Control System Design for a Motorcycle Stabilization during Braking

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