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We analyse the automatic braking system to reduce the speed automatically to avoid the panic action of automobiles. Stop the vehicle when it is in the accidental zone, we applied the velocity calculation according to the weight of the body which can reach to required velocity state to avoid the accident. We are using the electromagnetic braking system to reduce the speed of vehicle it is about meet the accident. In this we achieve a better braking system and also it is relevant to future automobiles. The prototype has been prepared depicting the technology and tested as per the simulated conditions. In future the actual model may be developed depending on its feasibility

<div class="section abstract"><div class="htmlview paragraph">The fuel economy of the internal combustion engine becomes progressively critical, especially with the stringent standards set by the government. To meet the government norms such as CAFE (Corporate Fuel Average Economy), different technologies are being explored and implemented in internal combustion engines. Several technologies such as variable oil pump, map controlled PCJ (Piston Cooling Jet), variable or switchable water pump &amp; ball bearing turbocharger etc. This study investigates the effectiveness of implementing map-controlled PCJ implemented for a 1.5-litre 3-cylinder diesel engine.</div><div class="htmlview paragraph">PCJ’s are major consumers of oil flow and map-controlled PCJ is used by many OEM’s e.g., Ford EcoSport to reduce the oil pump flow. In map-controlled PCJ, the oil to the PCJ is controlled using a solenoid valve. The solenoid valve can be completely variable or ON/OFF type. In our application, the ON/OFF type solenoid value is used to regulate the oil flow to PCJ. Conventionally, the oil to the PCJ is supplied at all operating conditions of the engine, even when the piston temperature is within the material acceptable limit. This adds to the parasitic loss of the internal combustion engine, due to the high friction power consumed by the oil pump to meet the oil flow rate requirement. Using the solenoid-controlled PCJ along with Variable Displacement Oil Pump (VDOP), the flow to the PCJ can be shut down at certain operating conditions such as high speed, and low load conditions. Using the VDOP, the total oil flow rate can be reduced whenever there is no flow to the PCJ, this will help to reduce engine friction load &amp; improve the overall fuel economy.</div><div class="htmlview paragraph">The objective of the paper is to show the systemic approach, design modifications &amp; challenges involved in the implementation of the map controlled PCJ. The final engine with the map-controlled PCJ along with VDOP is evaluated in the NEDC (New European Driving Cycle) drive cycle to understand the benefits &amp; an overall fuel economy of 1 – 2 % was observed. Results are discussed in detail, which have enabled to take required decision on implementation of Map Controlled PCJ in the specific engine application.</div></div>

<div class="section abstract"><div class="htmlview paragraph">The Introduction of Corporate Average Fuel Economy (henceforth will be addressed as CAFE) regulations demand suitable technological upgrades to meet the significant increase in targets of vehicle fleet fuel economy. Engine Downsizing and Friction Reduction measures help in getting one step closer to the target. In a Conventional Oil Pump, the pump discharge flow and pressure are a direct function of operating speed. There is no control over lubricant flow which results in increased power and fuel consumption due to its unnecessary pumping characteristics irrespective of the actual engine demand. This paper discusses the introduction of a variable displacement oil pump (henceforth will be addressed as VDOP) that was adapted to a 1.5-liter 3 Cylinder Diesel Engine. This approach helps the system to reduce parasitic losses as the oil flow is regulated based on the mechanical needs of the engine. The flow is regulated with help of a solenoid valve which receives input from the ECU. The engine Oil Pump has a major role in enabling the transfer of lubricant to all moving engine components. The demand majorly depends on engine performance characteristics, bearing clearances, operating temperatures, and wear behavior of engine components. The paper explains the boundary conditions for VDOP design packaging, challenges in system adaptation, impact on engine lubrication circuit, performance, and friction reduction benefit.</div></div>