Other Covert Vehicle Entry System CVAS

Covert Vehicle Entry System CVAS

Covert Vehicle Entry System CVAS
 

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Description

SMART KEY HISTORY

 

 

The smart key allows the driver to keep the key fob in their pocket when unlocking, locking and starting the vehicle. The key is identified via one of several antennas in the car's bodywork and a radio pulse generator in the key housing. Depending on the system, the vehicle is automatically unlocked when a button or sensor on the door handle or trunk release is pressed. Vehicles with a smart key system fitted have a mechanical backup, usually in the form of a spare key blade supplied with the vehicle. Some manufacturers hide the backup lock behind a cover for styling.

 

When leaving a vehicle equipped with a smart key system, the vehicle is locked by either pressing a button on one of the door handles, touching a capacitive area on a door handle, or by simply walking away from the vehicle. The method of locking varies between models. SmartKeys was developed by Siemens in the mid-1990s and introduced by Mercedes-Benz in 1997 to replace the infrared security system introduced in 1989. Daimler-Benz filed the first patents for SmartKey on February 28, 1997 in German patent offices, with multifunction switchblade key variants following on May 17, 1997. The device entailed a plastic key to be used in place of the traditional metal key. Electronics that control locking systems and the ignitions made it possible to replace the traditional key with a sophisticated computerized "Key". It is considered a step up from remote keyless entry.

The SmartKey adopts the remote control buttons from keyless entry, and incorporates them into the SmartKey fob.

 

VEHICLE MANUFACTURES USE KEYLESS AUTHORIZATION SYSTEMS

Acura: Keyless Access System

Audi: Advanced Key

Aston Martin: ""Keyless Entry and Push Button Start""

BMW: Comfort Access

Cadillac: Adaptive Remote Start & Keyless Access

Dodge: Keyless Enter-N-Go™

Ford: Intelligent Access with push-button start

General Motors: Passive Entry Passive Start (PEPS)

Honda: Smart Entry System

Hyundai: Proximity Key

Infiniti: Infiniti Intelligent Key with Push-button Ignition

Jaguar Cars: Smart Key System Jeep Keyless Enter-N-Go™

KIA: Smart Key System

Lexus: SmartAccess System

Lincoln: Intelligent Access System

Mazda: Advanced Keyless Entry & Start System

Mercedes-Benz: Keyless Go integrated into SmartKeys

Mini: Comfort Access Bugatti keyless entry remote

Mitsubishi Motors: FastKey

Nissan: Nissan Intelligent Key®

Porsche: Porsche Entry & Drive System

Renault: Hands Free Keycard

Ssang Yong: Smart Key System

Subaru: Keyless Smart Entry With Push-Button Start

Suzuki: SmartPass Keyless entry & starting system

Toyota: Smart Key System

Volkswagen: Keyless Entry & Keyless Start or KESSY

Volvo: Personal Car Communicator "PCC" and Keyless Drive or Keyless Drive

 

BASIC SYSTEM OPERATION DESCRIPTION

HOW IT WORKS

 

”CVAS" system consists of two communication modules – receiver and transmitter. Receiver must be placed near a car, receiving module must be placed near a key. When system is switched on, it establish hi-speed digital data tunnel between the modules. It allows signal transfer between key and car and vice-versa.

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Length А–В is a distance between door handle (with built-in antenna) and receiver must be in range in between of 30-70 cm.

Length B-C Minimal distance between translators must be 50 meters, to avoid signal interference between translator and key. Distance between translators in ideal conditions can reach 1 kilometer.

Length C–D is a distance between key and transmitter and must be in range of 1- 6 meters (depends on key modulation and battery condition in the key).

 

CURRENTLY SUPPORTED VEHICLES:

- ALL NXP BASED FOB VEHICLES (90% OF THE MODERN VEHICLES MARKET)

- TI (TEXAS INSTRUMENTS) BASED FOB VEHICLES (LEXUS, SOME TOYOTA, MAZDA, FORD ..) TO BE SUPPORTED UNTIL 01/2014

 

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