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ARTICLE
RESEARCH ON MILLIMETER WAVE RADAR SIMULATION MODEL FOR INTELLIGENT VEHICLE
Radar simulation models can effectively overcome the drawbacks of real vehicle experiment and speed up the development process of intelligent vehicle technologies based on millimeter wave radar via virtual testing. However, there are still many gaps between the radar model using...
ARTICLE
LANE DETECTION AND TRAJECTORY TRACKING CONTROL OF AUTONOMOUS VEHICLE BASED ON MODEL PREDICTIVE CONTROL
A novel approach of combining lane detection and model predictive control (MPC) is presented to maintain the accuracy and stability of trajectory tracking control for autonomous vehicles. For the approach, the autonomous vehicles equipped with a camera act as the research object...
ARTICLE
LCF/TMF MODEL BASED APPROACH FOR THE PREDICTION OF FATIGUE LIFE OF COMPONENTS IN LIGHTWEIGHT AUTOMOTIVE ENGINES
The life prediction of mechanical components in presence of Thermo-Mechanical Fatigue (TMF) is a crucial issue of the design activity. In the combustion engine, that action looks rather difficult because of a superposition of several damage phenomena. Some TMF models are current...
ARTICLE
INFLUENCE OF WEATHER CONDITIONS ON FATAL ROAD ACCIDENTS ON HIGHWAYS AND URBAN AND RURAL ROADS IN ROMANIA
This paper investigates the relationship between different weather conditions and the monthly road traffic accidents (Nacc) that caused injuries and fatalities between 2011 and 2014 on the Romanian highways and urban and rural roads. The monthly average temperatures (MAT) and pr...
ARTICLE
EFFECT OF HOLES ON BRAKE-BLEEDING PERFORMANCE IMPROVEMENT IN THE EPB CALIPER
Brake-bleeding is the process of removing air bubbles present on hydraulic brake systems. In particular, the existence of air content within the EPB caliper deteriorates bleeding performance, causing a high-level compressibility of the brake fluid. This paper presents numerical ...
ARTICLE
THERMAL AGEING EFFECTS IN A COMMERCIAL THREE-WAY CATALYST: PHYSICAL CHARACTERIZATION OF WASHCOAT AND ACTIVE METAL EVOLUTION
The main system to reduce engine emissions of gasoline-fueled vehicles is represented by the three-way catalyst (TWC). The main catalyst of this system usually works in extreme conditions which induce a phenomenon called thermal ageing, the major way of catalyst deactivation. In...
ARTICLE
RESEARCH ON THE INTEGRATED INTERCOOLER INTAKE SYSTEM OF TURBOCHARGED DIESEL ENGINE
In order to improve the compactness and performance of the intake system of turbocharged diesel engines, an integrated intercooler intake system is provided. Porous media computational fluid dynamics (CFD) model is used to analyze the flow and heat exchange performance of the in...
ARTICLE
PARTIAL AND FULL BRAKING ALGORITHM ACCORDING TO TIME-TO-COLLISION FOR BOTH SAFETY AND RIDE COMFORT IN AN AUTONOMOUS VEHICLE
In this study we developed an autonomous braking algorithm to satisfy both safety and ride comfort of a vehicle. The proposed algorithm is composed of two-step braking strategies depending on the value of time-to-collision. The first step is a partial braking strategy to provide...
ARTICLE
VEHICLE YAW STABILITY CONTROL AT THE HANDLING LIMITS BASED ON MODEL PREDICTIVE CONTROL
This study proposes a double linear model predictive control (DLMPC) structure to improve the tyre force utilization of active front steering (AFS) vehicle at the handing limits. The DLMPC structure consists of a linear model predictive control (LMPC) and a linear time-varying m...
ARTICLE
EFFECT OF SHAFT MISALIGNMENT ON HYPOID GEAR PAIR DRIVEN THROUGH A UNIVERSAL JOINT
An enhanced hypoid geared rotor system model incorporating a universal joint that connects driveline propeller shaft and pinion shaft is introduced in this study. The effect of shaft misalignment and pinion mass unbalance on hypoid gear dynamic response is evaluated under differ...
ARTICLE
DESIGN AND GENERATION OF A TARGET SOUND TO ACHIEVE THE DESIRED SOUND QUALITY INSIDE A CAR CABIN
This paper presents a novel method to design and generate a target interior sound to achieve the desired sound qualities of “powerfulness” and “pleasantness” inside a car cabin. A powerfulness index and pleasantness index were developed to evaluate the perceptions of inte...
ARTICLE
REAL-FLUID MODELING FOR TURBULENT MIXING PROCESSES OF N-DODECANE SPRAY JET UNDER SUPERCIRITICAL PRESSURE
The multi-environment probability density function (MEPDF) approach using the real-fluid Equation of State (EoS) has been developed to numerically investigate the physical processes of the non-cryogenic n-dodecane fuel spray jet under the supercritical pressure. The MEPDF approa...
ARTICLE
CONTROL STRATEGY FOR SHIFT SCHEDULE CORRECTION BASED ON DRIVING HABITS FOR VEHICLES WITH AUTOMATIC TRANSMISSION
A shift schedule modification program is an intelligent system for automatic transmission. This program can adjust shift points to cater to drivers with different driving habits. An important prerequisite in designing a personalized shift schedule is identifying the driving habi...
ARTICLE
DESIGN OF A ROBUST RACK POSITION CONTROLLER BASED ON 1-DIMENSIONAL AMESIM MODEL OF A STEER-BY-WIRE SYSTEM
This paper presents a robust rack position control method based on a disturbance observer to enhance maneuverability and steering robustness during steering situation. It is shown that the rack and pinion system of Steer-by-Wire system with irregular parameters and external dist...
ARTICLE
SITUATION ASSESSMENT FOR LANE-CHANGING RISK BASED ON DRIVER’S PERCEPTION OF ADJACENT REAR VEHICLES
With advancements in sensors and communication technologies, hazardous lane-changing can be readily identified, by analyzing driving behavior and vehicle data. Most traditional approaches to assess hazardous lane-changing depend on surrogate safety measures, such as gap acceptan...
ARTICLE
IMPROVEMENT OF FUEL ECONOMY AND GREENHOUSE GASES REDUCTION IN GASOLINE POWERED VEHICLES THROUGH THE TWC-NOx TRAP CATALYST
The three way catalyst NOx trap catalyst (TWC-NT) is consisted of a conventional three way catalyst (TWC) compositions and NOx storage material (NSM) to mitigate NOx breakthrough occurred during the fuel cut event to improve fuel economy of stoichiometric (A/F=14.6) gasoline pow...
ARTICLE
COMPARATIVE INVESTIGATION OF GASEOUS EMISSIONS AND PARTICLE EMISSION CHARACTERISTICS FROM TURBO-CHARGED DIRECT INJECTION (DI) ENGINE WITH GASOLINE AND LPG FUEL DEPENDING ON ENGINE CONTROL PARAMETERS
To meet greenhouse gas (GHG) emission target, automotive manufacturers should promote low carbon emission technology, including gasoline direct injection (GDI) systems. However, recent studies have shown that excessive levels of nanoparticles were emitted from GDI vehicles compa...
ARTICLE
UNDERSTANDING THE EFFECT OF RESONANT FREQUENCY USING ULTRASONIC-ASSISTED MEASUREMENT IN GAS FUEL SYSTEM FOR NATURAL GAS VEHICLE
This work is the experimental study to use the ultrasonic sensor which can seek the optimum sensitivity of pure methane gas used in natural gas vehicle (NGV). This research is to experimentally analyze the acoustic characteristics using an impedance analyzer and three different ...
ARTICLE
FEASIBILITY STUDY ON THE REDESIGN OF A METALLIC CAR HOOD BY USING COMPOSITE MATERIALS
Nowadays, fuel consumption and exhaust emissions are topical issues in the automotive field, as environmental safeguard legislation constraints are going to get tougher. Indeed, one of the most efficient methods to contain fuel consumption and emissions is the weight reduction o...
ARTICLE
VISUALIZATION RESEARCH AND OPTIMIZATION STRATEGY FOR COMBUSTION PROCESS AND EMISSION CHARACTERISTICS OF INTERNAL EXHAUST GAS RECIRCULATION SMALL NON-ROAD DIESEL ENGINE
Based on a small non-road diesel engine, internal exhaust gas recirculation (IEGR) was realized by the exhaust valve re-opening (2EVO). The influences of IEGR on combustion and emission performance were analyzed. The results showed that in-cylinder pressure peak decreased, the s...
ARTICLE
MODEL PREDICTIVE CONTROL OF AN ALL-WHEEL DRIVE VEHICLE CONSIDERING INPUT AND STATE CONSTRAINTS
This paper suggests a novel model-based control scheme for an all-wheel drive (AWD) vehicle. Using transfer case, AWD system is able to transfer the engine torque to all the wheels mechanically, helping the vehicle to maintain traction on a slippery road or to climb a hill. Rece...
ARTICLE
SHAPE OPTIMIZATION OF THIN-WALLED CROSS SECTION FOR AUTOMOBILE BODY CONSIDERING STAMPING COST, MANUFACTURABILITY AND STRUCTURAL STIFFNESS
At the conceptual design stage, the cross-sectional shapes of thin-walled beams (TWBs) need to be optimized to improve the performance of automobile structure. Therefore, this paper innovatively proposes a cross-sectional shape optimization method to acquire a low cost, high sti...
ARTICLE
INVESTIGATING THE EFFECT OF WEIGHT REDUCTION OF ROD-END IN DRAG-LINK PRODUCT WITH FINITE ELEMENT ANALYSIS, FATIGUE TEST, AND A CASE STUDY
The connection surfaces of drag-link must be tough and safe enough to carry transmitted forces that exert on the product in service conditions. Therefore, undulated forming takes place in machining process to stay the rod-ends in the rod. In the rod-end, after forming process, a...
ARTICLE
ANALYSIS OF THE TRANSMISSION PERFORMANCE OF CONTROL PILOT SIGNAL LINES FOR CHARGING COMMUNICATION IN ELECTRIC VEHICLES
To avoid degradation of transmission performance associated with the lengths of control pilot (CP), protective earth (PE) and the earth structures of chassis in charging-communication between electric vehicle supply equipment (EVSE) and electric vehicle (EV), the dependence of C...
ARTICLE
DCTF FLOW DISTRIBUTION DESIGN IN CLUTCH PACKS OF WET DCTS
Wet clutch pads require temperature control on contact surface because increased frictional heat abruptly decreases friction coefficient, and eventually, the desired torque transfer becomes difficult to control. Generation of frictional heat is inevitable during clutch engagemen...
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