CONSTRUCTION OF A 12V DC AUTOMOBILE ELECTRONIC CAR JACK

Side road emergency like tire puncher, is a problem most common in cars. Conventional car jacks uses mechanical advantage to allow a human to lift a vehicle manually. This project describes the modification of the current automobile electronic jack by incorporating an electric DC motor, 555 timer using a dual pair 1N4148 diode and potentiometer, pickup circuit to detect noise in the circuit, a transistor driver pre-amplifier circuit to drive the electronic circuit, screw in other to make load lifting easier for emergency purpose using a power car battery (12volts). Belt is used to increase the lifting speed. Construction of electric jack was done by incorporating a belt to regulate the speed and also an on and off power button to turn off and on of the electronic car jack. Result shows that fabrication work was done using welding machine. The developed car jack was tested on loads ranging from 500-1000kg due to inefficiency in lifting the car which was as a result of much speed. The significance and purpose of this work is to modify the existing car jack in order to make the operation easier, safer and more reliable in order to reduce stress, health risk and energy in doing work which might lead to back ache when squatting for a long period of time. Speed controller should be used in future work to solve the problem and making car lifting at a great rate. The electronic car jack should be introduced to automobile industries so as to enable the development and ease in automobiles. Further research, design and construction should be done to achieve up to 90% efficiency in automobile jacks.