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Power-saving on-vehicle controller

  • US 7,492,250 B2
  • Filed: 10/25/2007
  • Issued: 02/17/2009
  • Est. Priority Date: 07/23/2004
  • Status: Active Grant
First Claim
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1. An on-vehicle controller programmed to perform:

  • smart control for transmitting a transmission request signal from an on-vehicle transmitter to a predetermined area and for receiving a return signal with an on-vehicle receiver to control an on-vehicle device based on the received return signal;

    security control for providing a warning if a security sensor of a vehicle detects improper conduct to the vehicle; and

    immobilizer control for reading an identification code for certifying permission for an engine start based on the read identification code to permit the engine start if the read identification code coincides with a stored identification code, whereinthe smart control and the security control may be selectively deactivated so that only the immobilizer control remains activated to preserve vehicle battery power.

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