Keyless motor vehicle starting system with anti-theft feature
AssigneeContinocean Tech Inc.
InventorChunyan Liu
Life of this patent
Estimating the term…
Abstract
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.
Claims9
A keyless motor vehicle starting system comprising:
- a motor starter;
- a solenoid on said motor starter;
- an ignition circuit;
- a vehicle battery;
- additional motor vehicle electrical components which are not relied-upon to energize/enable said motor starter and said ignition circuit;
- a portable wireless transmitter which comprises:
- (a) a battery;
- (b) a power-code switch connected to said battery;
- (c) a starter-code switch connected to said battery;
- (d) a power-code generator which is connected to said power-code switch and generates a power-code when said power-code switch is turned on;
- (e) a starter-code generator which is connected to said starter-code switch and generates a starter-code when said starter-code switch is turned on;
- (f) an OR-gate which combines said starter-code and said power-code;
- (g) an electromagnetic-wave modulator which generates an electromagnetic-wave signal modulated by the output of said OR-gate;
- (h) an electromagnetic-wave transmitting means connected to the output-pin of said electromagnetic-wave modulator;
- a receiver/controller board which comprises:
- (a) an electromagnetic-wave receiving means which generates a received electromagnetic-wave signal;
- (b) an electromagnetic-wave demodulator whose input-pin is connected to said electromagnetic-wave receiving means;
- (c) a starter-code detector which generates a detected-starter-code-signal and has an input-pin which is connected to the output-pin of said electromagnetic-wave demodulator;
- (d) a power-code detector which generates a detected-power-code-signal and has an input-pin which is connected to the output-pin of said electromagnetic-wave demodulator;
- (e) a power switch which is controlled by said detected-power-code-signal and is connected between said vehicle battery and said ignition circuit;
- (f) a starter switch which is controlled by said detected-starter-code-signal and is connected between said power switch and said starter solenoid and between said power switch and said additional motor vehicle electrical components;
- wherein said portable wireless transmitter and said receiver/controller board are used to replace an ignition lock, an ignition key and an ignition switch in a conventional motor vehicle.
Dependencies are inferred from the claim text.