Sprung/Unsprung Mass Properties Determination without Vehicle Disassembly

Bixel, Ronald A.; Heydinger, Gary J.; Guenther, Dennis A.; Новак, Сергій

doi:10.4271/960183

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…The un-sprung weight of a wheel controls a trade-off between a wheel's bumpfollowing ability and its vibration isolation. Bumps and surface imperfections in the road cause tyre compression-which induces a force on the un-sprung weight [13].…”

Section: Theory Of Unbalancementioning

confidence: 99%

Effect of Tyre Unbalance on Performance of Vehicle

Taneja¹

2020

International Journal of Mechanical Engineering and Technology (Ijmet)

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Now a days automobiles play a significant role in our day to day life, but automobile vehicles (cars) also need proper care and service to get optimum performance from them. Balancing technology is one of the important aspect of automobile vehicle and unbalance in tyres of vehicle plays an important part in vehicle performance.Of course, it's natural for any rotating component to vibrate. Even in the best of operating condition vehicle will have some minimum vibration because of small, minor defects. However, when machinery vibration increases or becomes excessive, some mechanical trouble is usually the reason, which can be -unbalance, misalignment, worn out gears or bearings, looseness, etc.This paper focusses importance of balancing technology specially effect of tyre unbalance and its adverse effect on vehicle (car) performance and remedial steps to improve these effects. Idea of writing this type of paper is to highlight the significance of balancing technology in a high speed vehicles (specially cars) and also to aware the consumers (car owners) and manufacturer both about this paramount technology.Sometimes these studies are quite helpful in order to facilitate better design of wheel assembly (which includes tyres and wheel both) so that there should be minimum unbalance which affects the performance of vehicle.

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Section: Theory Of Unbalancementioning

confidence: 99%

Effect of Tyre Unbalance on Performance of Vehicle

Taneja¹

2020

International Journal of Mechanical Engineering and Technology (Ijmet)

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“…Where, M s is the sprung mass, M u,f and M u,r are unsprung mass at front and rear side respectively. Further, the sprung and unsprung mass are estimated using [53], and the equations for calculating these parametres are,…”

Section: Part-3: Optimal Control Problem Formulation Using Mpc For Stmentioning

confidence: 99%

Sensor Fusion and Non-linear MPC controller development studies for Intelligent Autonomous vehicular systems

Dudekula¹

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Comparison of the Braking Performance of Electromechanical and Hydraulic ABS Systems

Emereole

Good

2005

Dynamic Systems and Control, Parts a and B

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The benefits potentially available by replacing conventional hydraulic ABS brake systems with electromechanical brake-by-wire systems (EMB) are extensive and have been well documented. They include increased functionality, packaging and design flexibility, reduced assembly costs, and elimination of hydraulic fluids [1, 2]. A characteristic of most ABS systems is a sequence of discontinuous build-hold-dump pressure cycles, whereas EMB systems will allow continuous control of brake torque. In this paper, the antilock performance of an EMB using a continuous brake torque control strategy is compared against that of a current state-of-the-art hydraulic ABS system. The comparison was performed using a half-car model developed in the Simulink environment. The hydraulic system characteristics were identified from ABS test data on a recent production vehicle and the simulated ABS logic was also validated using this data. A simple model of the dynamics of an EMB actuator with clamp force control was developed, and validated against limited test results from a prototype EMB system. A continuous gain-scheduled PID wheel slip controller was developed for the EMB to replace the conventional ABS logic. Brake system performances were compared using an Antilock Performance Index (API). The results of the comparison indicate that an EMB with continuous slip control has the potential to perform better than a conventional ABS system, provided a suitably robust wheel slip controller and algorithm for determining the appropriate target slip are available.

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Sprung/Unsprung Mass Properties Determination without Vehicle Disassembly

Cited by 5 publications

References 4 publications

Effect of Tyre Unbalance on Performance of Vehicle

Effect of Tyre Unbalance on Performance of Vehicle

Sensor Fusion and Non-linear MPC controller development studies for Intelligent Autonomous vehicular systems

Comparison of the Braking Performance of Electromechanical and Hydraulic ABS Systems

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