Reliability Design And Analysis Of The Circuit Of The Car Immobilizer

The circuit of the car immobilizer, core of the car immobilizer, takes an important function in the protection of the safety of cars. Therefore, in terms of protection cars' safety, its reliability index is very vital. Reliability design methods to improve circuit working reliability can ensure its long-playing safe work, and be of great significance to improve the products market competitiveness and protect its safety.In the past while designing the circuit, people only designed the product's function, subsequently, tested it repeatedly, till it conformed to the requirement, the cycle of design was long, and its expenditure was high. In view of the above -mentioned facts, the method of the reliability design and analysis for the circuit of the car was built in this paper. By studying a series of the methods of reliability design in depth, Specifically divides into reliable target value determination, components selection, reliability prediction and allocation and so on, it has imported the software of reliability design and analysis, combined with the process of the product design and also developed and promoted the product quality as to realize the second research of the software. In the article the key discussion analysis software with using the software RELEX to analyze the reliability design of a double 555 circuit of the electronic immobilizer, first carries on the system the duty description, lists its reliable quest, and in RELEX software constructes and describes the system, then mainly carries on the basic reliable estimate, the reliability estimate of the assignment section and the optimized improvement to this system. The result of analysis indicates that it can satisfy the reliability design request very well. Using this method of combining the method of reliability design and software RELEX, it can shorten the period of design, reduce the expenditure, cut down plenty of manual calculation and improve the efficiency of design.Because of the commonness of the electronic and circuit product, the method of reliability design and analysis of the double 555 circuit of the electronic immobilizer can also be fit to design other electronic and circuit products, reliability design method can instruct the designing of electronic and circuit not only in the cars but also in other electronic and circuit products.