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Keyless motor vehicle starting system with anti-theft feature
| Details |
Inventors: Liu, Chunyan;
Assignee: Continocean Tech Inc. (Montville, NJ)
Primary Examiner: Elms; Richard T.
Assistant Examiner:
Attorney, Agent or Firm:
A keyless motor vehicle starting system to replace a conventional ignition lock and ignition key of a motor vehicle. The system consists of a portable wireless transmitter and a receiver/controller board which is installed deeply inside the motor vehicle behind a steering column cover or cluster cover of the motor vehicle. The portable wireless transmitter has a power-code generator and a starter-code generator and controls a vehicle battery power supply and ON-OFF states of a motor vehicle starter by sending a radio-frequency-modulated power-code and starter code. A novel design is disclosed to avoid having to detect engine-running conditions and avoid using a feed-back-control circuit to de-energize the motor starter. |
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DETAILED DESCRIPTION The goal of this invention is to use an electronic device to replace the conventional ignition lock and ignition key and to provide a reliable, highly secure, user-friendly and low-cost motor vehicle starting system.
A novel design is disclosed to avoid having to detect engine-running conditions and avoid using a feed-back-control circuit to de-energize the motor starter and therefore overcome the problems of lower reliability and higher manufacturing cost associated with the existing remote-starting devices.
The keyless vehicle starting system in this invention consists of a portable wireless transmitter and a receiving/controlling board which is installed deep inside a vehicle, preferably behind the steering column cover or cluster cover of the vehicle.
The portable wireless transmitter includes a power-code generator, a starter-code generator, a radio-frequency (RF) modulator, a battery and two normal-off button switches: a power-code switch and a starter-code switch.
The power-code switch is used to turn on and off the power-code generator.
The starter-code switch is used to turn on and off the starter-code generator.
The receiving/controlling board has an RF demodulator, a starter-code detector, a power-code detector, a starter switch and a flip-flop switch.
When the starter-code from the portable wireless transmitter is properly detected by the starter-code detector, the starter-code detector turns on the starter-solenoid side of the starter switch and turns off additional electrical components of the vehicle which are not relied-upon to energize/enable the ignition/starting circuits of the vehicle.
If the starter-code from the portable wireless transmitter is not detected, the starter-code detector turns off the starter-solenoid side of the starter switch and turns on other electrical components of the vehicle.
Whenever the power-code switch on the portable wireless transmitter is pressed once and the power-code is detected by the power-detector, the power-detector changes the `ON-OFF` state of the flip-flop switch and accordingly the `ON-OFF` state of the vehicle battery power supply
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Navigation and GPS 
