| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control system capable of effectively suppressing damages by a relay attack by having a mechanism capable of discriminating whether a response signal from a key to a WAKE signal is a response to the WAKE signal transmitted first or a response to the second and succeeding WAKE signals in a smart key system. <P>SOLUTION: The WAKE signals at the start of communication from a vehicle to a smart key are made different between a WAKE1 signal transmitted first and a WAKE2 signal transmitted thereafter, and a response signal in the case of receiving the WAKE1 signal and a response signal in the case of receiving the WAKE2 signal are turned to different signals on a key side. In the case that a vehicle side does not receive the response signal to the WAKE1 signal, it is determined that a relay attack is being performed, and door opening and engine start of a vehicle are not permitted. In the case that the vehicle side receives the response signal to the WAKE1 signal, the door opening and engine start of the vehicle are permitted when the collation of an ID is a success. <P>COPYRIGHT: (C)2012,JPO&INPIT |
