Diagnostics of automobile starters by the parameter of current consumption

Abstract

The urgency of the problem of diagnosing automobile starters is caused by the high complexity of existing diagnostic methods that require removing the starter from the engine. The occurrence and development of malfunctions of starters are caused by a change in the current consumed at the time of starting the internal combustion engine. The value of the starter current consumption was experimentally determined using current-measuring pliers for a group of vehicles with different mileage. It has been established that the current consumed by workable starters decreases monotonically with an increase in operating time, not reaching the maximum permissible value determined by the method of tolerance boundaries. The current consumption of starters with malfunctions is much less than the allowable value, allowing you to use this parameter to determine the technical condition. To assess the service life of automotive starters, the degree of working capacity was used, due to the difference between the current and limit values of the diagnostic parameter. The practical significance of the research is to determine the residual life of automobile starters. Further research will be aimed at establishing the dependence of the current consumption on the ambient temperature and forming recommendations for diagnosing automotive starters.