Advanced Lane Departure Warning System Set To Debut | Part Two


System Architecture

The Infiniti Lane Departure System recognises lane markings through the use of a small camera mounted behind the rearview mirror. The camera’s signal and the vehicle’s speed are sent to the system’s advanced microprocessing unit, which combines the information to calculate both the distance between the vehicle and the lane marking and the lateral velocity to the lane marking. A judgment is then made as to whether the vehicle is moving out of the lane (depending on the distance and lateral velocity to the lane).

If it is determined that the vehicle is leaving the lane, both visual (indicator light located on the instrument panel) and audible (buzzer) warning signals are generated, alerting the driver to take corrective action. The system will not operate if the camera can’t detect the lane markers or if the vehicle’s speed is below 45 miles per hour.

"Some of the typical scenarios where the Lane Departure Warning system will warn the drivers when they are not giving 100% of their attention to driving and drift out of their lanes of travel are, for example, adjusting the audio system, looking at other occupants, searching for addresses or landmarks when driving on unfamiliar roads, or when concentrating on conversations rather than driving," said Yakushi.

The Lane Departure Warning system was developed in conjunction with Valeo SA and Iteris, Inc., the latter has previously developed LDW systems for the commercial long-haul truck industry.

"Infiniti has long been a leader in utilising technology for the benefit of the driving experience – including our Intelligent Cruise Control, voice-recognition based navigation and Rear View monitor systems." Said Mark Igo, vice president and general manger, Infiniti: "The arrival of Lane Departure Warning is an important first for Infiniti."

The Infiniti brand is currently under study for sale in Europe with a possible introduction date before the end of the decade. Though LDW could be available in Europe fitted to a Nissan a bit sooner.


Published : 21/04/04 Author : Melanie Carter

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