Brake Analysis and NVH (Noise, Vibration and Harshness) Optimization have become critically important areas of application in the Automotive Industry. Brake Noise and Vibration costs approximately $1Billion/year in warranty work in Detroit alone. NVH optimization is now increasingly being used to predict the vehicle tactile and acoustic responses in relation to the established targets for desig...

The present study focuses on the effect of air-fuel ratio on the performance of four cylinder hydrogen fueled direct injection internal combustion engine. GT-Power was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich limit to a lean limit. The rotational speed of the engine was varied from 1250 to 4500 rpm. The acquired results shown that the air fu...

This paper presents a recognition algorithm combining the vehicle detection and the color difference of RGB color space to recognize the brake-lights state of moving vehicles in order to achieve the intelligent-car’s rear-end collision warning about the vehicle in front of it. Firstly, we train and build AdaBoost cascade classifier by haar features samples and scaling sub-windows are used to de...

A 75-year-old male presented to the emergency department (ED) following a fall from his bicycle. The patient fell face-first onto the handlebars, with the brake handle impaling his left upper lip. Paramedics were able to detach the handle from the bicycle and transport him to the ED. He denied loss of consciousness, neck pain, dental pain, or other injuries. Examination revealed the brake handl...

A brake hardware-in-the-loop simulation (HILS) system for a railway vehicle is widely applied to estimate and validate braking performance in research studies and field tests. When we develop a simulation model for a full vehicle system, the characteristics of all components are generally properly simplified based on the understanding of each component's purpose and interaction with other compo...

Brake squeal, as friction-induced audible noise above 1 kHz to 20 kHz, is a major concern to automotive manufacturers because of noise, vibration and harshness performance and warranty-claim related costs. The prediction of brake squeal is as difficult as ever due to nonlinearities, uncertainty boundary and operating conditions. The exact contact conditions between pad linings with rotor are of...

During the braking action, the kinetic energy produced at the wheel is transformed into heat energy, which doesn’t dissipate fast enough into the air stream from the brake to the brake disk; as a result, the thermal conductivity plays a critical role in handling such heat generated. Thermal judder, which is a result of non-uniform contact cycles between the pad and the disk brake rotor, which i...

In this paper, the brake driving intention identification parameters based on the fuzzy controlare summarized and analyzed, the necessary parameters based on the fuzzy control of the brake driving intention recognition are found out, and I pointed out the commonly corrupt parameters, and through the relevant parameters ,I establish the corresponding driving intention model.

A cost effective, low maintenance generator brake is proposed using recent developments in thick film, metal oxide resistors. The brake has very low resistance, and virtually no inductance, allowing its use &ring a fault to slow a generator’s acceleration. Simulation results using the 39 Bus New England system show that placing brakes at each machine dramatically increases the global stability ...

In this paper, we consider the minimal period estimates for brake orbits of nonlinear symmetric Hamiltonian systems. We prove that if the Hamiltonian function H ∈ C(R,R) is super-quadratic and convex, for every number τ > 0, there exists at least one τ -periodic brake orbit (τ, x) with minimal period τ or τ/2 provided H(Nx) = H(x). §