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| Passive Entry and Start System |
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The passive entry and start system allows the driver to lock and unlock the vehicle’s doors without touching a key, and start and stop the vehicle engine just by pushing the ignition button. DENSO supplies the passive key, receiver, entry ECU and start ECU for the system.
DENSO Technology – Leading the World
In 2006 DENSO developed the worlds thinnest keycard. This was achieved by inser-molding the circuit board with resin, resulting in a thinness of 3.35 mm. Thanks to the resin, the card key also features the world's highest-level bending strength, and the world's first totally waterproof circuit area.
How it works:
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The driver’s credit card style “passive key” detects the low-power signal emitted from the vehicle when the driver approaches the vehicle.
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The passive key automatically responds to the vehicle by emitting a key code.
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The vehicle’s receiver receives the key code and sends it to an entry electronic control unit (ECU).
The entry ECU confirms the key code. When the key code is confirmed and the driver touches the door handle, the entry ECU unlocks the doors.
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To start the vehicle engine, the driver simply pushes an ignition button. The start ECU allows the engine to start only when the key code is confirmed again.
Benefits:
- Reduced electrical consumption to achieve the same lifetime as an ordinary remote keyless entry systems.
- Our smart key supports high-speed data communication, which ensures quick response, even with complex encryption.
- The key works with weak radio signals because we have employed a high-sensitivity ferrite antenna and high-gain detection circuitry.
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