Vehicle Antenna System and Method for Determining Connectivity Status Thereof

摘要

A vehicle communication system that includes an antenna system for a vehicle and a method of determining a connectivity status of the antenna system. The antenna system includes a test antenna for transmitting a wireless diagnostic signal with a signature waveform and a primary antenna that receives the wireless diagnostic signal and provides a corresponding wired diagnostic signal to a diagnostic circuit. The diagnostic circuit is configured to determine a connectivity status of the antenna system based on the presence or absence of the signature waveform in the wired diagnostic signal received from the primary antenna. It is possible for the diagnostic circuit to include a finite state machine (FSM) for carrying out the connectivity status determination.

主权项

1. An antenna system for a vehicle, comprising:
a test antenna mounted in the vehicle and configured to transmit a wireless diagnostic signal with a signature waveform, wherein the test antenna is coupled to a vehicle infotainment system (VIS) module that includes an electronic control unit (ECU) and that also provides the signature waveform; a primary antenna mounted in the vehicle and configured to receive the wireless diagnostic signal from the test antenna and to provide a wired diagnostic signal in response thereto; and a diagnostic circuit coupled to the primary antenna via a wired connection so as to receive the wired diagnostic signal, wherein the diagnostic circuit is configured to evaluate the contents of the wired diagnostic signal and determine a connectivity status of the antenna system based on the presence or absence of the signature waveform.