Car Smart Detection System Research And Development

The modern automobile has a complicated sensor network. The automobile sensors are"eyes"and"ears"of the automobile electronic control system, which are used for measuring the relative parameters such as vehicle speed, load, rotational speed in the normal running state, and transmitting the tested information to the computer control system rapidly and accurately.The automobile failure detection is the chief link of the automobile service flow. At present, there are many detection devices (for example, the automobile self-diagnosis system, the digital meter, the vehicle oscilloscope, the scanner, etc.), detection methods and techniques. Most automobile failure diagnosis must follow a certain detection step (or procedure). Generally speaking, we may do it according to such a procedure as first detection of the electric circuit connection quality, next detection of the sensor and the actuator, and final detection of the electrically controlled unit. However, because the automobile breakdown is characterized by suddenness, comprehensiveness and difference, at the time of failure detection, we still need concrete analysis of concrete conditions, that is, we should choose appropriate detection facilities or testing tools with correct logic fault analysis, and then establish the data of failure detection and diagnosis, by which we can locate the failure and carry out trouble shooting accurately and promptly.The research and development of the automobile intelligence detection system aims at the intellectualized examination of automobile breakdowns, while the basics of modern automobile breakdown diagnosis line in the test of auto sensors. From the standpoint of practical application, this article compares and analyzes the types of electronic signal waveforms and their characteristics showed by modern check-out...