This work is an experimental research to investigate the gas fuel (CH4) characteristics necessary for natural gas vehicles based on ultrasonic-assisted measurement using two different ultrasonic sensors. This paper offers the technical methods including energy transfer process, ...
In this research, it was investigated the energy fraction and emission characteristics of natural gas/diesel dualfuel combustion in terms of the combustion index such as combustion duration and mass fraction burned 50 % (MFB50) of a 6-L heavy-duty compression ignition (CI) engin...
A driver of a military vehicle is exposed to whole-body vibration when driving in field terrain conditions, and the driver\'s muscles become tired. Muscle fatigue occurs most strongly near both shoulders, which must be used to steer the vehicle in the target direction. The degre...
Certified testing of motor vehicle driving resistance, fuel economy and emissions requires that the vehicle has reached the target distance specified for each country through running-in. In general, motor vehicles experience different tire wear and internal resistance profiles f...
The feasibility of the calculation model and calculation methods is verified by engine bench test and visual rapid compression machine (RCM) test as reported in this paper. Using AVL software FIRE, the processes of low speed preignition (LSPI) and super knock triggered by the oi...
The most undesired diesel engine pollutants are nitride oxide (NOx), particulate matter (PM), carbon monoxide (CO), and unburned hydrocarbon (HC). Selective catalytic reduction (SCR) with ammonia (NH3) has been successfully employed to remove NOx from diesel emissions via chemic...
In tropical countries, the power demand from the air conditioning system of an electric vehicle can be up to 40 percent of the total power demand of the traction battery. It is therefore essential to investigate methods that improve the efficiency to reduce the capital and opera...
Control strategies for the vehicle equipped with an automatic transmission greatly affects the fuel economy and drivability. In general, the gear shift of automatic transmission is controlled based on the two-dimensional lookup tables. The lookup tables are calibrated based on t...
Computer Aided Engineering (CAE) software has become an essential element in design, simulation, manufacturing and even marketing in the automotive industry as well as in other major manufacturing companies. Multiphysics simulation of IC engines may be one of the most challengin...
The purpose of this study is to investigate effects of length-to-width (L/W) ratio on cavitation flow inside a transparent acrylic nozzle orifice, and its effects on spray angle. Three visualization nozzles with different geometries (L/W = 2.0, 2.67, and 4.0) are used, and the w...
Exhaust port is an important part of a diesel engine which affects the combustion and emission. It is important to have a good design for exhaust port. In this paper, the calculation formula of the optimal area ratio (Kopt) of outlet and inlet of exhaust port was derived. The fo...
An experimental investigation has been carried out to highlight the effects of different injection strategies on the performance and emissions of a low compression ratio Euro 5 diesel engine operated with high EGR rates. Rate-shaped main injections, achieved with piezoelectric a...
A bus rollover is one of the most severe accidents that usually causes a large number of fatalities and injured occupants. This paper aims to investigate the key parameters affecting the damage and deformation behaviours of bus superstructure under rollover test according to Eco...
This paper presents a novel electromechanical brake (EMB) with automatic wear adjustment function, which has been ignored in most previous studies. With the aim of investigating the parameter characteristics of the EMB system and analyzing the proposed function, the mathematical...
In this paper, the numerical simulation of the diesel and gasoline fuels injection in a constant volume chamber and in a cylinder under the operating conditions of a compression ignition (CI) engine is conducted. The simulation results are compared with the experimental data whi...
The purpose of this study is to investigate the characteristics of a newly introduced integrated exhaust gas recirculation (EGR) valve. Traditionally, a exhaust-pressure regulating valve is installed to increase the EGR flow rate; the method used in this study induces an increas...
This work is to investigate the physical effect of plasma discharge in atmospheric air using a capacitive discharge ignition (CDI) system. Also, to specifically investigate the kernel effects of CDI system, this work represents the different characteristics including the spark i...
To deal with the challenges caused by the weakness of wireless communication, this paper presents a distributed H∞ control strategy for platooning of automatic vehicles (AVs) connected by switching and undirected topologies. With the compensation of the powertrain nonlinearitie...
In this paper, the annual data of 40 public buses fueled with diesel in four cities in southern China have been analyzed for investigating the driving and fuel consumption characteristics. Results showed that the best traffic condition and smoothest driving style were obtained i...
In this paper, we propose a new control logic for hybrid vehicle control technology using predictable real road information. The newly proposed control logic is implemented in real time by applying the shifting map of the engine and transmission applied to the hybrid vehicle and...
SolidWorks and ANSYS Workbench were used to establish solid model and perform FEM analysis of truck with and without sealing covers respectively. In the past practical production, there has been no precedent for the modal analysis of the truck carriage with a sealing cover; the ...
In this paper, an integrated control strategy (ICS) is proposed to improve high speed dynamics stability of the vehicle by the integration of active aerodynamic control (AAC) and differential braking control (DBC). Two aerodynamic surfaces are attached to the roof of the vehicle...
In this paper, we present a study on the stick-slip torsional vibration of the spinning shaft in an automotive water pump. We propose a dynamic rotor model with a pulley, an impeller, a mechanical seal and a shaft to analyze the stickslip vibration of a water pump. The dynamic s...
This study focuses on energy harvesting from vehicle suspension by employing a regenerative rotational shock absorber. Designing, manufacturing and testing of a prototype device is done step by step to provide a useful manual for researchers. The prototype damper was especially ...
The smart regenerative braking system in electric vehicles implements automatic control of the regeneration torque of motor to improve driver’s comfort and energy efficiency. To apply this system, the accurate prediction of the vehicle deceleration states is the preliminary ste...
