Design And Application Of Vehicle Remote Key's Location Identification Test

The vehicle remote key is one of the typical represent of today's rapid automotive electronic fields. With the lean production, the remote key widely accepted by car customers.The most important function of remote key entry system is the Passive Key Entry Function: Car antennas and remote key communicate with each other via radio signals. In order to achieve this function, we must identify the relative position between the remote key and the vehicle in advance. The Identification is the prerequisite for following actions, such as door open function, door close function and keyless start.The article will introduce the principles of the radio signal communication between the remote key and vehicle antenna. Describe the wireless protocol, hardware system and software system for establishing the test platform by module. The dissertation try to design the key validate platform. Prove the feasibility of the Helmholtz coil uniform field strength by simulating the Matlab modeling. Verify the remote key's location identification function by actual key samples.