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ARTICLE
MINIMUM TIME LANE CHANGING PROBLEM OF VEHICLE HANDLING INVERSE DYNAMICS CONSIDERING THE DRIVER'S INTENTION
By solving driver’s optimal handling input, this paper presents a novel Lane Changing Assistance System (LCAS) which can provide guidance for driver’s lane changing behavior. In addition, vehicle handling inverse dynamics method is proposed to solve driver’s optimal handl...
ARTICLE
ON THE NEAR-WAKE OF A GROUND-EFFECT DIFFUSER WITH PASSIVE FLOW CONTROL
A ground-effect diffuser is an upwardly-inclined section of an automobile’s underbody which increases aerodynamic performance by generating downforce. To understand the diffuser flow physics (force behaviour, surface and offsurface flow features), we established the near-wake...
ARTICLE
RESEARCH ON THE INFLUENCE OF HYDROGEN AND OXYGEN FUEL OBTAINED FROM WATER ELECTROLYSIS ON COMBUSTION STABILITY OF SHALE GAS ENGINES
Hydrogen and oxygen fuel obtained from water electrolysis mainly contains H2 and O2, usually abbreviated to HHO. The compositional characteristics of HHO were analyzed by gas chromatography-mass spectrometry (GC-MS). The influence of HHO on the combustion process in the cylind...
ARTICLE
MODEL-BASED CONTROL OF ELECTROMAGNETIC VALVE ACTUATORS FOR ENGINE SPEED CONTROL
The introduction of electromagnetic valve actuators (EMVA) benefits engine fuel economy, torque performance and reduction of emissions. Meanwhile, it complicates the controller for the purpose of regulating the additional freedom degrees of intake valvetrain, such as valve lif...
ARTICLE
APPLICATION OF SCREW THEORY TO THE ANALYSIS OF INSTANT SCREW AXIS OF VEHICLE SUSPENSION SYSTEM
This paper proposes a method using screw theory to find the twist of a rigid body of a mechanism. For this, a geometric method to determine the screws and reciprocal screws associated with kinematic joints and links is introduced. This geometric method provides a simple way to...
ARTICLE
NOVEL SELF-CLAMPING CLUTCH MECHANISM FOR MICRO ELECTRIC VEHICLE TRANSMISSION
This paper deals with a novel clutch mechanism for transmission applications, which aims at easy application of the transmission as the micro-electric vehicle models expand in variety. The new mechanism actuated by the torque and rotational inertia of the traction motor instea...
ARTICLE
UNCONSTRAINED SHAPE OPTIMISATION OF A LIGHTWEIGHT SIDE DOOR REINFORCING CROSSBAR FOR PASSENGER VEHICLES USING A COMPARATIVE EVALUATION METHOD
This paper presents an efficient and extensive exploratory search for lightweight side-door intrusion-bar assembly design concepts using the approach previously developed by the author. The study aimed to discover latent dependence or other relationships between the geometry b...
ARTICLE
EFFECT OF HEAT TREATMENT ON CRACK PROPAGATION AND PERFORMANCE OF DISK BRAKE WITH CROSS DRILLED HOLES
A vehicle disk brake, which has cross drilled hole patterns on a frictional surface for improving cooling and braking performance, has propensity to cause crack problem under the harsh braking condition. In this study, the finite element analysis by using ABAQUS was adopted to...
ARTICLE
ANALYSIS OF VIBRATION ON AN ENGINE BLOCK CAUSED BY COMBUSTION IN A DIESEL ENGINE
An accelerometer replaced an in-cylinder pressure sensor to detect the combustion status. The correlation between the vibration on an engine block caused by direct combustion as well as the combustion status was analyzed. The direct combustion vibration was determined. The dir...
ARTICLE
FACTORS IN FATAL INJURIES TO CYCLISTS IMPACTED BY FIVE TYPES OF VEHICLES
The factors in fatal injuries to cyclists in collisions with five different types of vehicles were examined using data from the Institute for Traffic Accident Research and Data Analysis in Japan for the period 2004 ~ 2013. The vehicle types were sedans, minivans, box vans, lig...
ARTICLE
SIMULATION OF LIQUID AND GAS PHASE CHARACTERISTICS OF AERATED-LIQUID JETS IN QUIESCENT AND CROSS FLOW CONDITIONS
The simulation of the liquid- and gas-phase properties of aerated-liquid jets in various quiescent and cross flow conditions are presented in the study. For simplicity, water is used as the liquid for all test conditions. The effect of various air-to-liquid ratios under super-...
ARTICLE
MOTORCYCLE ACCIDENTS – A NEW HEAD AND NECK SAFETY DEVICE FOR RIDERS
This paper is devoted to the design and first implementation of a new head and neck safety device (NHNS) for race of motorcycles. The system aims to mitigate the effects of crash forces acting along almost every direction with respect to the head. The system is composed by a h...
ARTICLE
POWER MANAGEMENT STRATEGY FOR THE 48 V MILD HYBRID ELECTRIC VEHICLE BASED ON THE CHARGE-SUSTAINING CONTROL
To enhance the 48 V mild hybrid electric vehicle performance using a smaller capacity and lower voltage battery than the full hybrid electric vehicle, a novel power management strategy needs to be established that considers the characteristics and limitations of the components...
ARTICLE
DESIGN AND CONTROL OF AN AUTOMOTIVE VARIABLE HYDRAULIC DAMPER USING CUCKOO SEARCH OPTIMIZED PID METHOD
The semi-active suspension (SAS) system has been one of the most attractive topics due to its simplicity and effectiveness in the control of vehicle dynamics. This research proposes a cuckoo search optimized proportional-integral– derivative (CS-PID) strategy for the damping ...
ARTICLE
AUTOMATIC EVALUATION OF STRUCTURAL INTEGRITY IN CRASHWORTHINESS SIMULATIONS USING IMAGE ANALYSIS
This paper presents an analysis of the possibility to evaluate full vehicle crashworthiness simulations automatically. Nowadays the evaluation of full vehicle crashworthiness simulations is done by only a few hard numerical criteria and a lot of soft criteria which get evaluat...
ARTICLE
EFFECT OF THE FIBER LAMINATION ANGLE OF A CARBON-FIBER, LAMINATED COMPOSITE PLATE ROOF ON THE CAR INTERIOR NOISE
The paper presents the change of the interior noise according to the lamination angles of the carbon fiber in the carbon-fiber reinforced plastic (CFRP) laminated composite plate. In the previous paper, the charateristics of the sound radiated from a CFRP plate was studied in ...
ARTICLE
MISFIRE FAULT DIAGNOSIS OF RANGE EXTENDER BASED ON HARMONIC ANALYSIS
For an Extended-Range Electric Vehicle (E-REV), the misfire failure of the range extender can result in working condition deterioration, mileage decrease, vibration and noise increase, and other adverse consequences. The relationship of the shaft instantaneous angular speed (I...
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