A System Approach to the Drag Performance of Disc Brake Caliper

Tao, Jason J.; Chang, H. T.

doi:10.4271/2003-01-3300

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…It transfers the torque M(t) and rotational speed n(t) via the chain transmission (7) to the main shaft (8). The main shaft (8) features other mechanical transmissions (11) intended for various simulation and measurement functions, the purpose of which exceeds the framework of this elaboration. The main shaft (8) interoperates with the brake assembly (9), which is equipped with a brake (10), the purpose of which is to generate the resistance torque M(t).…”

Section: Measurement Methodologymentioning

confidence: 99%

“…They were able to determine the impact of individual components, including the disc brake mechanism, on the hysteresis losses. An analysis of the current state of knowledge leads us to conclude that the occurrence of this phenomenon affects both the operation of brake calipers and valves [11][12][13] as well as the operation of disc brakes [14,15], especially in heavy vehicles. The response rate of anti-lock braking systems [16][17][18] may also depend on the occurrence of hysteresis losses.…”

Section: Introductionmentioning

confidence: 99%

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Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

et al. 2023

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As part of ongoing research, a wheelchair dynamometer has been designed and built. This device is a complex test stand, enabling research on the operation of wheelchairs, taking into account a number of biomechanical factors in laboratory conditions. Based on a review of the available literature, the braking system was designed and constructed as a part of a dynamometer drive system. This has resulted in a design issue concerning the optimal selection of the electromechanical drive combined with a hydraulic system as the actuator of the brake. The purpose of the research discussed here is to determine the characteristics of the braking system. For this purpose, a series of tests were carried out using a wheelchair with an electric drive, which allowed the generation of a constant rotational speed in the range between 72 rpm and 222 rpm. Based on the test results, the hysteresis of the developed braking system and the characteristics of the braking power were determined.

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Section: Measurement Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

et al. 2023

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“…Federal Motor Vehicle Safety Standard (FMVSS) 135 (U.S. National Highway, 2005) specified that, for standard passenger vehicles with weight of 3500 kg and below, the vehicle should be able to stay stationary on 20% grade road for 5 minutes in both forward and reverse directions, with 400 N or less force applied at the hand control of the parking brake mechanism. To date, a lot of literatures have discussed the braking performance of the service brakes (Limpert, 1999, Xiaoyan et al, 2012Tirovic et al, 2011;Hwang et al, 2009;Koylu and Cinar, 2012;Zhang et al, 2012;Belhocine and Bouchetara, 2012;Tao and Chang, 2003;Aleksendric and Barton, 2009;Bao et al, 2012;Mutlu et al, 2005), but only a handful have been done on the parking brakes. For in-stance (McKinlay et al, 2003;McKinlay et al, 2006); investigated conventional parking brake performance in term of vehicle roll away for the disc brakes through laboratory tests and theoretical approaches.…”

Section: Introductionmentioning

confidence: 99%

Brake torque analysis of fully mechanical parking brake system: Theoretical and experimental approach

Razmi-Ishak¹,

AbuBakar²,

Belhocine³

et al. 2018

IIT

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The effect of the reduction of drum brake temperature on the clamping force of the parking brake system has not been well addressed despite the fact that it may result in vehicle roll away. In view of this, parking brake model that takes into account the temperature reduction of the drum brake has to be developed and more importantly, it must comply with the applicable standards or regulations such as FMVSS 135. This paper develops a one dimensional (1D) model of leading-trailing drum-type parking brake model. This brake model is then verified with experiments carried out on a test bench that has been calibrated with the hand brake system in the vehicle. The results from the experiments show a good correlation with the predicted results from the brake model. With the verified brake model, parametric studies can be carried out as one of the tools during the design process.

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“…(a) the operation of brake calipers and valves; [12][13][14] (b) the performance of disc brakes, especially for heavy vehicles; 15, 16 (c) the response speed of anti-lock braking systems (ABSs). [17][18][19] This phenomenon is also connected with integration of the brake system units with elements of the active safety system, with application of 'brake-by-wire' technology and with development of the wheel brakes with self-boosting.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the brake system’s efficiency for commercial vehicles equipped with disc brakes

Tretsiak

2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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The development of a technique for carrying out road and bench tests on the brake system components of vehicles and their simulation with the use of a modern computer environment and software are actual scientific problems. This paper describes different ways for carrying out road and bench tests on the brake systems of vehicles with the help of the hardware-in-the-loop technique. It covers the following issues: substantiation of positive feedback introduction into disc brakes to provide a self-boosting effect; the concept of disc brake design with self-boosting which has minimal hysteresis and a very rapid rate and can be used for different types of vehicle brake system; estimation of the dependence of the brake system’s efficiency for a medium-duty truck on the hysteresis value of the disc brakes with the help of bench tests (the analytical dependences of the braking distance on the relative change in the hysteresis will be obtained and can be used for definition of the brake system’s efficiency in accordance with the hysteresis value of the disc brakes); analysis of the self-boosting influence of the disc brakes on the brake system’s efficiency of a truck tractor on the basis of road test results. To a first approximation it will be substantiated that the efficiency of the vehicle’s brake system can be enhanced using the proposed disc brake with self-boosting.

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A System Approach to the Drag Performance of Disc Brake Caliper

Cited by 12 publications

References 3 publications

Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

Brake torque analysis of fully mechanical parking brake system: Theoretical and experimental approach

Experimental investigation of the brake system’s efficiency for commercial vehicles equipped with disc brakes

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