| The failure database for vehicular SI engine electronic system is built in order to solve the failure of vehicular SI engine more efficiently and more accurately so that the needs of laws and customers can be satisfied.By means of the failure database,servicemen can directly narrow down and confirm failure cause.Failure simulation experiment device of vehicular SI engine electronic system has been built,which is composed of control unit adapters of SI engine electronic system,failure trigger device,etc.All the experiments such as open circuit failure,short circuit failure and signal interference failure can be performed by the adapters of the experiment device.Furthermore,failure appearance,failure cause and relevant signals can be got.SQL Server is chosen to build the failure database,filtering items of which are failure part,failure code,warning lamp in combination instrument,text display in combination instrument,car breaking down or not,able to restart engine or not.After the failure database built,the common failure causes of vehicular SI engine electronic system can be sought out through SQL query and analysis of relevant problems can be fastened.Moreover,the failure database for vehicular SI engine electronic system is applied to dealers,diagnosis developing department and after-sale quality department.Especially for after-sale quality department,the failure database for vehicular SI engine electronic system has remarkable effect on solving complaints,reducing failure rate and improving customers’ satisfaction. |
