The Signal Identification Method of Abnormal Breakpoint Signal of CAN bus Communication of New Energy Vehicles
The conventional identification method of abnormal breakpoint signal identification of CAN bus communication mainly adopts the instantaneous feature identification of abnormal sig-nal,but the identification of breakpoint signal is not comprehensive,which affects the commu-nication effect of CAN bus.Therefore,the signal identification method of abnormal breakpoint of CAN bus communication of new energy vehicles is studied.Establish the abnormal break-point identification matrix of CAN bus communication of new energy vehicles,and summarize the signal transmission relationship,signal position and parameters of abnormal breakpoints in CAN bus communication network into the matrix file to avoid the problem of breakpoint signal identification.Construct the signal recognition model of abnormal CAN bus communication,and use the Maharanobis distance to amplify the subtle changes in the communication signal,so as to obtain more accurate breakpoint signal.Identify the abnormal breakpoint signal scattering parameters of the CAN bus communication,reflect the amplitude and phase information of the communication breakpoint signal,identify the cause and position of the abnormal breakpoint more accurately,and realize the normal communication of the automobile bus.Comparative ex-periments are used to verify that the breakpoint signal identification of this method is more ac-curate and can be applied in real life.
new energy vehiclesCAN buscommunicationabnormal breakpoint signalidenti-fication method
万方数据
维普
