Engine controller online diagnosis method and related device

Abstract

The invention discloses an engine controller online diagnosis method and a related device, which are used for reducing the possibility of wrong diagnosis. The method comprises the steps that an engine controller obtains vehicle data of a vehicle-mounted sensor on an engine; the engine controller judges whether the vehicle data are abnormal or not; if so, the engine controller preliminarily screens the vehicle data to obtain abnormal data; the engine controller performs preliminary calculation according to the abnormal data to obtain a primary diagnosis index, the primary diagnosis index comprising a preliminary diagnosis result of the engine controller on the abnormal data and engine information; the engine controller uploads the primary diagnosis index to a cloud platform server, so that a cloud platform performs secondary diagnosis according to the primary diagnosis index to obtain a target diagnosis result; and the engine controller receives the target diagnosis result sent by the cloud platform server.

Description

technical field [0001] The present application relates to the field of data processing, in particular to an engine controller online diagnosis method and related devices. Background technique [0002] The engine is a machine that can convert other forms of energy into mechanical energy. When the engine encounters a failure, the ECU (Electronic Control Unit, Electronic Control Unit) on the engine will collect the data information of the engine. After screening and calculation, a diagnostic index is obtained, and the ECU judges whether the diagnostic index is abnormal. If it is, it means that the engine is faulty. If not, it means that the engine is normal. [0003] In the prior art, the fault diagnosis of the engine is based on the diagnostic index of the current engine and the normal data obtained during the engine simulation test or after the engine has been used for a long time as a diagnostic reference value to diagnose the fault of the engine. In the technology, the eng...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the fault diagnosis of the engine is based on the diagnostic index of the current engine and the normal data obtained during the engine simulation test or after the engine has been used for a long time as a diagnostic reference value to diagnose the fault of the engine. In the technology, the engine controller only uses the normal data of the engine itself as a diagnostic reference value for diagnosis, which may lead to the possibility of wrong diagnosis results

Images