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Technical Paper

NEXT GENERATION POWER DISTRIBUTION UNIT IN WIRING HARNESS

2019-11-21
2019-28-2571
Keywords – Miniaturization, Low Profile (LP) Relays, Low Profile (LP) Fuses, Fuse box, Wiring Harness Research and/or Engineering Questions/Objective With the exponential advancement in technological features of automobile’s EE architecture, designing of power distribution unit becomes complex and challenging. Due to the increase in the number of features, the overall weight of power distribution unit increases and thereby affecting the overall system cost and fuel economy. The scope of this document is to scale down the weight and space of the power distribution unit without compromising with the current performance. Methodology Miniaturization involves replacing the mini fuses and J-case fuses with LP mini and LP J-case fuses respectively. The transition doesn’t involve any tooling modification and hence saves the tooling cost.
Technical Paper

Affect of Tyre inflation on Rolling Resistance of Tyre

2019-11-21
2019-28-2415
Rolling resistance refers to the various forms of resistance against driving force when the vehicle is in motion. Several factors contribute to rolling resistance, including wind drag on the car, acceleration resistance generated by inertia force when speeding up, and resistance on the tyres. Tyre inflation pressure plays vital role on Coefficient of Rolling Resistance (RRC) of Tyre consequently vehicle mileage. Low or High tyre pressure is not good for driving comfort, safety of vehicle well as for environment. Petroleum Conservation Research Association ( PCRA ) has taken good initiative in direction to Tyre Star marking based on RRC values of Tyre.
Technical Paper

Thermal Challenges in Automotive Exhaust System through Heat Shield Insulation

2019-11-21
2019-28-2539
While advanced automotive system assemblies contribute greater value to automotive safety, reliability, emission/noise performance and comfort, they are also generating higher temperatures that can reduce the functionality and reliability of thesystem over time. Thermal management and insulation are extremely important and highly demanding in BSVI, RDE and Non-IC engine operating vehicles. Passenger vehicle and Commercial vehicle exhaust systems are facing multiple challenges such as packaging constraints, weight reduction andthermalmanagement requirements.Frugal engineering is mandatory to develop heat shield in the exhaust system with minimum heat loss. The focus of the paper is to design, develop and validate heat shield products with different variables such as design gap, insulation material, sheet metal thickness and manufacturing processes. 1D and 3D computational simulations are performed with different gaps from 3 mm to 14 mm are considered.
Technical Paper

Correlation of Noise Emitted by vehicle on an External Pass-By Noise Track and Indoor Anechoic Chamber

2019-11-21
2019-28-2425
Ikshit Shrivastava1, Kiranpreet Singh2 1,2 International Centre for Automotive Technology (ICAT), Gurugram, India Introduction: Pass By Noise emitted by the vehicle is one of the most critical tests for certification is vehicle worldwide. There are a number of national and international regulations to define test procedure. Though the available tracks are constructed to meet the requirements of these test standards, but there are other external parameters viz. ambient temperature, barometric pressure, wind speed and its direction, affecting the measurements. These parameters are beyond the control of human and this contamination of test data results in longer test time to monitor atmospheric/ambient conditions and perform the test. Indoor pass-by noise testing is a comparatively new method of testing, which is yet to be evaluated for repeatability/correlation with conventional exterior pass-by noise testing.
Technical Paper

Optimization of Compression Ratio for DI Diesel Engines for better fuel Economy

2019-11-21
2019-28-2431
Fuel economy is becoming one of the key parameter as it not only accounts for the profitability of commercial vehicle owner but also has impact on environment. Fuel economy gets affected from several parameters of engine such as Peak firing pressure, reduction in parasitic losses, improved volumetric efficiency, improved thermal efficiency etc. Compression ratio is one of key design criteria which affects most of the above mentioned parameters, which not only improve fuel efficiency but also results in improvement of emission levels. This paper evaluates the optimization of Compression ratio and study its effect on Engine performance. The parameters investigated in this paper include; combustion bowl volume in Piston and Cylinder head gasket thickness as these are major contributing factors affecting clearance volume and in turn the compression ratio of engine. Based on the calculation results, an optimum Compression Ratio for the engine is selected.
Technical Paper

Analysis of pressure variation in wheel using statistical methods

2019-11-21
2019-28-2450
Objective: The Objective of the research is to detect drop in level of pressure in the wheel with respect to nominal pressure using data obtained from speed sensors. The research discusses the standard procedure of experimentation to obtain data which eventually used to produce results. This procedure is taken from principles Design of Experiments. Statistical tools are used to analyze and give determining factors for pressure variation. Methodology: To study idea, we made use of two-wheeler platform and collected data of wheel speed sensors on both wheels. The idea is when there is any change in tire pressure the radius of the wheel also changes and usually this relation is direct. Hence, change in tire pressure changes the angular velocity of the wheel. In this approach wheel speed sensors are used to measure the angular speed for standard and reduced pressure conditions.
Technical Paper

Development of low cost life saving system for Automotive vehicles during Road Accidents.

2019-11-21
2019-28-2460
According to research study 45% of death cause due to not getting help on time to the injured person. Research has proven that if injured person is not found any option of help then they also loose the power to fight such critical situation due to psychological effect. When vehicle met accident, people are not getting on time support, this delay is the major cause of death in developing nations. Presently there is no any robust system available in market for passenger & commercial vehicles which helps to provide on time help to the injured persons & saves human life. In current situation low cost life saving device is need of our society. This paper deals with the design & development of the low cost-life saving device. This paper also comprises the scenario when any vehicle meet an accidents within certain speed limit then how the intelligent life saving device will work & save the life's.
Technical Paper

Potential for Emission Reduction and Fuel Economy with Micro & Mild HEV

2019-11-21
2019-28-2504
The development of modern combustion engines (spark ignition as well as compression ignition) for vehicles compliant with future oriented emission legislation (BS6, Euro VI, China 6) has introduced several technologies for improvement of both fuel efficiency as well as low emissions combustion strategies. Some of these technologies as there are high pressure multiple injection systems or sophisticated exhaust gas aftertreatment system imply substantial increase in test and calibration time as well as equipment cost. With the introduction of 48V systems for hybridization a cost-efficient enhancement and, partially, an even attractive alternative is now available. An overview will be given on current technologies as well as on implemented or simulated vehicle concepts for light duty gasoline and diesel powertrains.
Technical Paper

Design and Development of Constant speed diesel engine up to 20 bar BMEP with Inline FIS

2019-11-21
2019-28-2549
Design and Development of Constant speed diesel engine up to 20 bar BMEP with Inline FIS Remesan CB, Sanjay Aurora, Vasundhara V Arde, Vishal Kumar, Om Prakash Yadav, Piyush Ranjan Eicher Engines (A unit of TAFE Motors & Tractors Ltd.) Abstract Development trend in diesel engine is to achieve more power from same size of engine. With increase in brake mean effective pressure (BMEP), the peak firing pressure will also increase. The methodology to control the peak firing pressure on higher BMEP is the major challenge. We achieved better SFC with CPCB II emission targets on a constant speed engine. This study involves a systematic approach to optimize combustion parameters with a cost effective and robust inline Fuel Injection System. This paper deals with the strategies applied and experimental results for achieving the power density of 25kW/lit with Inline FIP by keeping lower Peak firing pressure.
Technical Paper

Development of high power density diesel engine for constant speed application

2019-11-21
2019-28-2566
Engine up gradation for higher power rating involves challenges that require hardware changes which not only increase cost but also demand higher space. This paper focuses on the up gradation of a 4 cylinder 4.9l CRDi engine from 24.03 kW/L to 30.75 kW/L by adjustment of various parameters to meet both emission and performance targets. Various challenges like higher exhaust temperature, increased peak firing pressure etc. were met using the proper calibration strategy. To meet SFC targets and keep peak firing pressures, exhaust temperatures within desired limits, different operating points for EGR, main injection timing, rail pressure have been optimized. The operating points for optimization were determined by conducting various drive trials on different type of load conditions in test bench. Calibration strategy involved the safe limits of NOx, soot, CO emissions, fuel consumption.pfp, and exhaust temperature.
Technical Paper

Combustion Optimization and In-cylinder NOx and PM Reduction by using EGR and Split Injection Technique

2019-11-21
2019-28-2560
Nowadays, the major most challenge in the diesel engine is the oxides of nitrogen (NOx) and particulate matter (PM) trade-off, with minimal reduction in Power and BSFC. Modern day engines also rely on expensive after-treatment devices, which may decrease the performance and increase the BSFC. In this paper, combustion optimization and in-cylinder emission control by introducing the Split injection technique along with EGR is carried out by 1-D (GT-POWER) simulation. Experiments were conducted on a 3.5 kW Single-cylinder naturally aspirated CRDI engine at the different load conditions. The Simulation model incorporates detailed pressure (Burn rate) analysis for different cases and various aspects of ignition delay, premixed and mixing controlled combustion rate, the injection rate affecting oxides of nitrogen and particulate matter.
Technical Paper

Experimental investigations on CO2 recovery from petrol engine exhaust using adsorption technology

2019-11-21
2019-28-2577
Energy policy reviews state that automobiles contribute 25% of the total Carbon-di-oxide (CO2) emission. The current trend in emission control techniques of automobile exhaust is to reduce CO2 emission. We know that CO2 is a greenhouse gas and it leads to global warming. Conversion of CO2 into carbon and oxygen is a difficult and energy consuming process when compared to the catalytic action of catalytic converters on CO, HC and NOX. The best way to reduce it is to capture it from the source, store it and use it for industry applications. To physically capture the CO2 from the engine exhaust, adsorbents like molecular sieves are utilized. When compared to other methods of CO2 separation, adsorption technique consumes less energy and the sieves can be regenerated, reused and recycled once it is completely saturated. In this research work, zeolite X13 was chosen as a molecular sieve to adsorb CO2 from the exhaust.
Technical Paper

Investigation in Bonding Conditions of CF/Epoxy – PP Hybrid Structures Manufactured by Hybrid Single Shot Method

2019-10-28
2019-01-2595
The hybrid single shot method is a novel manufacturing technique which allows to form and bond CF/Epoxy sheet with the injected thermoplastic in a single injection process. This process is promising to overcome the drawbacks of the traditional hybrid structure manufacturing methods by reducing the cycle time, energy consumption, tool, and machinery cost which are the concerns of automakers. In this process, polypropylene (PP) injected over the pre-heated CF/Epoxy prepreg insert. PP is widely used in automotive applications such as bumpers, dashboards, side-sills while CF/Epoxy prepreg has a great potential to enhance the mechanical properties of the hybrid component. Insert material is formed by the pressure of PP and bonded with the thermoplastic part by taking the advantages of polymer heat and the tackiness of prepreg. The final part is promising to combine the inherent properties of these two material while enhancing their weaknesses.
Technical Paper

Sensor Perception and Motion Planning for an Autonomous Material Handling Vehicle.

2019-10-28
2019-01-2611
The ground mobile robotics study is structured on the two pivotal members namely Sensor perception and Motion planning. Sensor perception or Exteroception comprises the ability of measurement of the layout of environment relative to vehicle’s frame of reference which is a necessity for the implementation of safe navigation towards the goal destination in an unstructured environment. Environment scanning has played a significant role in mobile robots application to investigate the unexplored environment in the sector of defence while transporting and handling material in warehouse and hospitals. Motion Planning is a conjunction of analysing the sensor’s information about the local frame and global map while being able to plan the route from starting point to the target destination. In this paper, a 3600 2-D LiDAR is used to capture the spatial information of the surrounding, the scanning results are presented in a local and global map.
Technical Paper

Passenger Evacuation and Safety System for case of Crash and Drowning

2019-10-28
2019-01-2606
Vehicle submersion has one of the most astounding casualty rates of a solitary vehicle mischance and, as per drowning statistics from the World Health Organization, may contribute up to 2,000– 5,000 lives annually when all of the industrialized countries are considered. The system which will aid passengers in evacuating in scenario of drowning. The vehicle safety system will facilitate the passengers if a vehicle is submersed in water by untying the seat belt and lowering the window. The setup will have a circuit independent to the main automotive circuit and will consist of an array of 4 pressure sensors whose distance will be predetermined and will be placed in such a way that if the vehicle falls in any way possible, the pressure sensors sense the data. The system will also have a water sensor placed at the engine compartment, as at this position the water comes at a very early stage in a case of vehicle drowning and very unlikely during other case for example washing or raining.
Technical Paper

Assessing the Combined Outcome of Rice Husk Nano Additive and Water Injection Method on the Performance, Emission and Combustion Characters of the Low Viscous Pine Oil in a Diesel Engine

2019-10-28
2019-01-2604
The research work intends to assess the need and improvement of using a low viscous bio oil, RH (Rice Husk) Nano Particles and water injection method in enhancing the performance, emission and combustion characters of a diesel engine. One of the major setbacks for using biodiesel was its higher viscosity. Hence, a low viscous oil (Pine oil) which doesn’t need transesterification process was used as a biofuel in this study. To further improve its characteristics a non-metallic Nano additive produced from rice husk was added at 3 proportions (50, 100, 200 ppm) and the optimal quantity was found as 100ppm based on the BTE (brake thermal efficiency) value of 30.2% at peak load condition. This efficiency value was accompanied by a considerable decrease in pollutants like HC (Hydrocarbon), Smoke, CO (Carbon monoxide). On the contrary NOx (Oxides of Nitrogen) emission was found to be increased for all load values.
Technical Paper

Energy Recovery Rate from an Electric Air-cycle System under the Cruising Altitude and Speed.

2019-09-16
2019-01-1905
In this study, we focus on an electric air-cycle system in an electric aircraft, where the system has an electric compressor instead of a hydraulically-operated oil-based compressor. The electric compressor consumes the power to compress the rarefied air outside and take it in the system. The air goes through the air-cycle as a working fluid to exchange the heat and work. The main purpose of the air-cycle is to adjust the temperature and pressure in a cabin. Therefore, the working fluid of the air repeats compression and expansion. The working fluid passing through the cabin absorbs heat from the passengers and avionics. After that, the air is discharged outside with higher heat level and pressure levels. This means that the discharged air has a potential energy to recover the power consumption in the electric compressor.
Technical Paper

Low cost, fireproof, and light aircraft interior

2019-09-16
2019-01-1857
Low cost, fireproof, and light aircraft interior Fire is a dramatic issue in aircraft nowadays, especially with composite air crafts. An additional issue is the dangerous use of flammable Li-Ion batteries in a lot of appliances. we propose in order to avoid dramas to produce aircraft interiors, fire doors, cargo bay walls, as well than cargo container able to contain a fire inside them, with our ceramic composite called TOUGHCERAM ®. We have developed a low-cost, ceramic, damage tolerant, this ceramic is flexible between minus 100°C and plus 350°C. TOUGHCERAM ® poly-crystalize between 60°C and 110°C and can be reinforced with fibbers like carbon or basalt one. TOUGHCERAM ® survive 90 minutes to a propane 1900°C torches. TOUGHCERAM ® does not burn, nor smoke. In this paper we will explain how it is possible to develop a fully mineral ceramic offering such unique mechanical and fire properties.
Technical Paper

Analysis of a Coupling System of Aircraft Environmental Control and Fuel Tank Inerting Based on Membrane Separation

2019-09-16
2019-01-1895
This paper raises a coupling system of aircraft environmental control and fuel tank inerting based on membrane separation. The system applies a membrane dehumidifier to replace water vapor removal unit of heat regenerator, condenser and water separator, which is widely used in conventional aircraft environmental control system nowadays. Water vapor can travel across the membrane wall under its pressure difference without phase change, so the dehumidification process consumes no cooling capacity and the cooling capacity of the system increases. This paper first compares the thermodynamic properties of environmental control system based on membrane dehumidification and the environmental control system based on condensation. The results show that the membrane dehumidification system has bigger cooling capacity and lighter weight.
Technical Paper

Analytical Model for Calibration Results performances enhancement, resulting in automated prescription for equipments

2019-09-16
2019-01-1878
The current aeronautical manufacturing sector is characterized by the high level of competence and the required requirement in its production processes, based on the objectives of profitability and safety (airworthiness). In recent years, there is a real revolution in the sector, where the most advanced tools for the organization and optimization of production are given priority, supported by the latest massively used techniques of automatic data collection. , their organized storage and their analytical classification. Metrology plays a key role in ensuring the quality and reliability of the information generated in these productive cycles. The provision of an analytical model of flexible measurement systems, capable and easily adaptable to the dynamics of the company, is presented as one of the pillars in which this new conception of production is based.
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