Abstract:

Every minute, on an average, at least one person dies in a crash. Even the latest advances in the fields of science and technology we have developed safety systems, such as air bags and seat belts, which save tens and thousands of people. But the ultimate solution, and the only one that will save far more lives and limbs, is to keep the cars away from crashing.

Adaptive cruise control {ACC) is an expansion of the existing cruise control systems , which in general maintain the vehicle speed through a link in the vehicle power train. With the help of this ACC, we not only sense the occurrence of a collision, instead we can even minimize the effect of a collision or altogether prevent the collision itself.

Here, we can always maintain a set head way distance between the host & the preceding vehicle. Thus by always maintaining a certain distance between the two vehicles we can avoid the collision. In order to do so, it will control the host vehicle speed by activating the throttle valve or by applying brakes, under the control the processor.

It involves a millimeter wave radar technology that promises to make driving easier. If we are able to incorporate Global Positioning System {GPS} along with adaptive cruise control, then there comes a day where Driverless automobiles will become a reality.

At present, there is no system available to back the vehicle. At times when the front wheel gets into a trench it is very difficult to take the vehicle from parking. Even normal people face much problem to take the vehicle out of the parking at that time. Incase of the handicapped people who drive two wheelers with extra support wheels, face much problem to take the vehicle out of the parking by pushing the vehicle with legs as we do. In order to take the vehicle out of the parking they need to seek others help or they should push it out of the parking. As a help to them we have designed a gear box which will be fit to the vehicle without altering the existing gear box. The paper deals with the design of such a gear box and the assembly process of the gear box to the vehicle. The design deals with the conditions of the gear box operation, and the design of the gear box based on easy assembly and easy manufacturing at low cost.

Abstract:

This paper is based on the project “Power Assisted Gear Shifting Mechanism for Automobiles”. This is a design, fabrication and implementation project. The project provides solution for gear shifting for the cars. The passenger cars that now ply on the road have transmission either of manual or automatic type of gear changing. The manual type of transmission is preferred for the perfect performance without a loss in power but a compromise for comfort ness. In the automatic type of power transmission there is easiness of gear shifting but there is a definite loss of power and mileage. The main objective of this project is to create a mechanism to reduce the inconvenience caused when changing gears in the car. The gear shifting here is by mere pressing of feather touch buttons present on the dash board. The gear shifting is by hydraulic force achieved by a simple modification to the gear box. This is a versatile pack, simple and can be fitted to any car equipped with hydraulic power steering. The setup consists of power steering pump, piston cylinder assembly and a set of fluid valves. This project if implemented is a clear alternative for the Automatic transmission because of its low cost and ease of use. Moreover the whole set up is small and requires a very small space. This can sure be a standard fitment if proper marketing strategy is carried out. Further, automatic clutch can be incorporated with this unit to make it fully automatic.