RESEARCH IN DETERMINATION OF THE RESIDUAL RESOURCE OF THE ENGINE DURING OPERATION
This article discusses the controlled parameters of the engine to fully control its technical condition in operation, which makes it possible to diagnose the car at any time. Using these parameters, the frequency of vehicle maintenance and repair is more rationally adjusted. Due to the fact that the wear rate of the machine parts depends on the operating conditions (climatic conditions, road category, gross vehicle weight), this adjustment allows determining the residual engine life at any time. On-board diagnostic systems continuously collect, record, process, analyze and issue information to the operator about the state of the unit (engine), so after repair and maintenance, using on-board diagnostic systems, it is always possible to monitor the quality of work performed and the quality of utilities used. In the process of work, the authors considered the causes of breakdowns, monitored parameters, limiting dimensions of the technical condition of engine parts and their average life, a block diagram of an onboard diagnostic system, information obtained during testing of a truck and operational factors affecting the wear rate of coupling powertrains. After the analysis, a block diagram of the control of engine parameters was proposed to estimate the residual engine life.