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ARTICLE
ANALYSIS OF LOAD CHARACTERISTIC AND CONTACT PATCH CHARACTERISTIC OF SUPPORT INSERT RUN-FLAT TIRE UNDER ZERO-PRESSURE CONDITION
Support insert run-flat tire is a kind of safety tire based on common tire structure. It has the advantages of simple structure, easy disassembly and strong bearing capacity. However, when driving under zero-pressure condition, it can not meet the requirements of heavy load, hig...
ARTICLE
HYBRID STEEL SHEET TRENDS FOR AUTOMOTIVE STAMPINGS
This study provides information on the hybrid steel sheets available for the use of carmakers. The automotive industry has been working on many different areas simultaneously to improve the performance of vehicles such as lightweighting, safety, clean energy resources, and noise...
ARTICLE
BRAKING TORQUE ANALYSIS AND CONTROL METHOD OF A NEW MOTOR WITH EDDY-CURRENT BRAKING AND HEATING SYSTEM FOR ELECTRIC VEHICLE
To solve the problem of the serious mileage reduction of electric vehicles in winter, this paper introduces a new type of motor with eddy current braking and heating system (EBHS). EBHS can convert the vehicle’s kinetic energy into the thermal energy which can be used for heati...
ARTICLE
HIERARCHICAL CONTROL OF YAW STABILITY AND ENERGY EFFICIENCY FOR DISTRIBUTED DRIVE ELECTRIC VEHICLES
A dual-layer energy-efficient control strategy is proposed for distributed drive electric vehicles to reduce energy consumption during cornering maneuvers and improve vehicle stability. The hierarchical control strategy consists of two energy-saving schemes. The first-layer ener...
ARTICLE
EFFECT OF AGED LUBRICATING OIL ON THE REGENERATION OF DIESEL PARTICULATE FILTERS AND ASH PHYSICAL CHARACTERISTICS WITH NON-THERMAL PLASMA TECHNOLOGY
The objective of this study was to evaluate the effects of lubricating oil age on the generation of diesel particulate filters (DPF) by non-thermal plasma (NTP) technology and to characterize the physical properties of ash. The regeneration status was evaluated by the concentrat...
ARTICLE
A PRACTICAL AXIAL CRUSH SIMULATION OF GLASS-FIBER MAT/PA6 COMPOSITE TUBES FOR APPLICATION OF AN ENERGY ABSORBER IN AUTOMOBILES
This paper is concerned with numerical simulation utilizing LS-DYNA MAT54 for axial crush of glass-fiber mat/PA6 composite tubes. The crush simulation aims at reproducing the crush energy absorption capability measured from dynamic drop tests. The adopted MAT54 has a merit as a ...
ARTICLE
STUDY ON WHEEL-SIDE DRIVE SYSTEM WITH A SINGLE TRAILING ARM
In order to reduce unsprung mass and ensure driving comfortability, a novel electrical vehicle (EV) drive system, which integrated the wheel-side reducer and a single trailing arm, was studied in this paper. Firstly, the general structure of the drive system was studied, in whic...
ARTICLE
WAKE FLOWS OF HIGHLY DETAILED HEAVY VEHICLES
This work presents a detailed wind tunnel investigation into the nature of the unsteady flow mechanisms that dictate the aerodynamic forces acting on prime-mover trailer heavy vehicles fitted with various passive flow control devices. This work builds on the current understating...
ARTICLE
LIGHTWEIGHT CHASSIS COMPONENTS –THE DEVELOPMENT OF A HYBRID AUTOMOTIVE CONTROL ARM FROM DESIGN TO MANUFACTURE
In this work, the development of a hybrid lightweight automotive chassis control arm is demonstrated. It includes the development of a new simulation method for designing metal - LFT (long fiber-reinforced thermoplastics) rehybrid parts and the new hybrid forming method for its ...
ARTICLE
A STUDY ON THE PRESSURE DROP CHARACTERISTICS OF A PASSIVE FILTER SYSTEM FOR COLLECTING FINE BRAKE DUST
Recently, the fine dust produced by automobile non-exhaust systems has drastically increased. Brakes are a major source of fine dust, along with tires. Therefore, this study investigated the pressure drop characteristics of a filter for collecting fine brake dust using only disk...
ARTICLE
MATHEMATICAL MODEL VALIDATED BY A CRASH TEST TO BE USED AS KINEMATIC AND DYNAMIC STUDY FOR SIDE IMPACTS
The aim of this paper was to develop a mathematical model for the study of the kinematic parameters of an occupant and vehicle during a side impact crash. The proposed model has three bodies (the vehicle, the occupant torso and head) that are interconnected to each other by join...
ARTICLE
LIGHTWEIGHT DESIGN OF AN AUTOMOTIVE BATTERY-PACK ENCLOSURE VIA ADVANCED HIGH-STRENGTH STEELS AND SIZE OPTIMIZATION
The battery packs are crucial components of electric vehicles and may severely affect the continue voyage course and vehicle safety. Therefore, design optimization of the battery-pack enclosure (BPE) is critical for enhanced mechanical and crashwrothiness performances. In this s...
ARTICLE
INTERACTIVE AND WORST-CASE OPTIMIZED ROBUST CONTROL FOR POTENTIAL APPLICATION TO GUARANTEEING ROLL STABILITY FOR INTELLIGENT HEAVY VEHICLE
Roll stability loss of heavy vehicle is a severe road safety problem and modern intelligent heavy vehicle (IHV) raises new requirement for advanced roll stability control technology. Two novel roll stability control frameworks, namely active steering-active anti-roll (AS-AAR) in...
ARTICLE
EXPERIMENTAL STUDY ON TIRE-ROAD DYNAMIC CONTACT PRESSURE DISTRIBUTION USING FTIR IMAGING
The power source for accelerating, braking, and steering of the vehicle is derived from the contact force between tire and road. Therefore, the pressure distribution in the tire-road contact patch is imperative for explorative studies into tire and vehicle performance. A test be...
ARTICLE
COLLABORATIVE OPTIMIZATION OF VEHICLE CRASHWORTHINESS UNDER FRONTAL IMPACTS BASED ON DISPLACEMENT ORIENTED STRUCTURE
Frontal impacts are the most frequent crash types and may generate extreme body in white (BIW) deformations. Vehicles are subjected to impact evaluation rating protocols such as 100 % Front Rigid Barrier (FRB) impact, 40 % Offset Deformable Barrier (ODB) impact and 25 % overlap ...
ARTICLE
EFFECTS OF BATTERY MODEL ON THE ACCURACY OF BATTERY SOC ESTIMATION USING EXTENDED KALMAN FILTER UNDER PRACTICAL VEHICLE CONDITIONS INCLUDING PARASITIC CURRENT LEAKAGE AND DIFFUSION OF VOLTAGE
Accurate estimation of battery State of Charge (SOC) is a crucial factor for the safe and efficient usage of the batteries in hybrid electric vehicles. The combined method of Coulomb counting and Open circuit Voltage (OCV) is already under practical usage for the estimation of b...
ARTICLE
EFFECT OF EGR COMBINED WITH INTENSE TUMBLE FLOW ON A WELL-CALIBRATED COMMERCIAL TURBOCHARGED GDI ENGINE
A turbocharged GDI engine with variable intake tumble is used to study the effects of EGRcombined with enhanced tumble on the engine’s economy, power, and emissions characteristics. The effects of EGR with enhanced intake tumble flow, on the combustion phase, combustion duratio...
ARTICLE
ANALYSIS OF REGIONAL CHARACTERISTICS OF TOTAL COST OF OWNERSHIP IN CALIFORNIA, THE UK, AND REPUBLIC OF KOREA
New powertrain technologies, such as those used in Hybrid Electric Vehicles, have a price premium which is often offset by lower running costs. Total Cost of Ownership (TCO) combines these purchase and operating expenses to identify the most economical vehicles overall. This is ...
ARTICLE
DCFS-BASED ONLINE DRIVING PREFERENCES LEARNING APPROACH WITH APPLICATION TO PERSONALIZED LANE KEEPING CONTROLLER DESIGN
For the automated vehicles, the user experience on comfort plays an important role for the market acceptance. Generally, for the experienced drivers who already form some certain driving preferences during the longtime driving, they will feel apparent discomfort if the automated...
ARTICLE
RIDING COMFORT ENHANCEMENT USING C-SHAPED SPRING SUSPENSION
Advances in automobile technology have led to the dynamic development of various types of active suspension systems to improve passenger riding comfort and maneuverability. This study improved the riding comfort of vehicle passengers by converting a conventional spring into a ro...
ARTICLE
RESEARCH ON THE DATA TRANSMISSION METHODS IN THE MAGNETO-THERMAL COUPLING MODEL FOR EDDY CURRENT BRAKING
The eddy current braking (ECB) is often installed on heavy-duty vehicles as the auxiliary braking component. When it works for a long time, the thermal derating of braking torque will reach about 18.5 % due to high temperature. It is important to establish an accurate magneto-th...
ARTICLE
SENSORLESS CONTROL OF PERMANENT MAGNET SYNCHRONOUS MOTOR FOR ELECTRIC VEHICLE BASED ON PHASE LOCKED LOOP
Under the low speed condition, a method of real-time tracking and estimation of rotor position based on PLL technology is proposed, which is used to solve the control system detection accuracy problem of permanent magnet synchronous motor (PMSM) for electric vehicles. The contro...
ARTICLE
FATAL INJURY RISK MODEL (FIRM) OF THE ROAD ACCIDENTS THAT OCCURRED IN RAINY CONDITIONS – A PROBABILISTIC APPROACH
This paper aims at assessing and identifying a fatal injury risk model with an exponential structure for the accidents that occur in rainy conditions, based on highly disaggregated level of data. A probabilistic approach is used in order to assess the fatal risk as a function of...
ARTICLE
LIGHTWEIGHT DESIGN OF CFRP-LAMINATED STRUCTURES BY COMBINING MICROSCOPICAL HOMOGENIZATION AND MACROSCOPICAL OPTIMIZATION
We developed a new method for the design of carbon-fiber reinforced plastic (CFRP)-laminated structures, which combined the asymptotic homogenization method and ply optimization. The equivalent mechanical properties of a single-layer CFRP were calculated using the asymptotic hom...
ARTICLE
A REVIEW OF OPTIMAL ENERGY MANAGEMENT STRATEGIES USING MACHINE LEARNING TECHNIQUES FOR HYBRID ELECTRIC VEHICLES
A hybrid electric vehicle (HEV) is defined as a vehicle that has two or more power sources, the hybrid electric vehicle is a representative eco-friendly vehicle because it can operate efficiently with each power source and requires only a small sized electric power source. Howev...
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