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Gemland
Technology
Pte Ltd. - Vehicle Anti-Theft Device, Automotive Security Systems
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| Vehicle Anti-Theft
Device, Automotive Security Systems |
| 1. |
An
anti-theft device (2) for a vehicle, comprising: a valve means (2D)
operable to open and close a fuel supply line of a vehicle thereby
respectively preventing and permitting fuel flow through said fuel
supply line, the valve means (2D) opening in response to an electrical
current supply; and closing in response to the lack of an electrical
current supply; and a control means (2A, 2B, 2C) for selectively
enabling and disabling said electrical current supply to the valve
means (2D), the control means (2A, 2B, 2C) enabling said electrical
current supply in response to receiving a specific encoded signal,
and disabling said electrical current supply at other times. |
| 2. |
An
antitheft device (2) according to claim 1, further comprising a
fuel supply control line adapted to be disposed in fuel supply line
of a vehicle, and wherein the valve means (2D) is arranged to control
fuel flow through said fuel supply control line. |
| 3. |
An
antitheft device (2) according claim 1 or 2, wherein the control
means (2A, 2B, 2C) enables said electrical current supply in response
to a specific start-up encoded signal. |
| 4. |
An
anti- theft device (2) according to claim 3, wherein the control
means (2A, 2B, 2C) comprises a power control unit (2C) adapted to
enable said electrical current supply to the valve means (2D) in
response to an activation signal; and an encoded signal control
unit (2A) adapted to generate said activation signal and to transmit
the activation signal to the power control unit (2C) in response
to receiving said specific startup encoded signal. |
| 5. |
An
anti-theft device (2) according to any proceeding claim, wherein
the control means (2A, 2B, 2C) disables said electrical current
supply in response to a specific shut-down encoded signal. |
| 6. |
An
anti-theft device (2) according to claim 4 & 5, wherein the power
control unit (2C) is adapted to disable said electrical current
supply to the valve means (2D) in response to a deactivation signal;
and the encoded signal control unit (2A) is adapted to generate
said deactivation signal and to transmit the deactivation signal
to the power control unit (2C) in response to receiving said specific
shut-down encoded signal. |
| 7. |
An
anti-theft device (2) according to claim 4 or 6, wherein the encoded
signal control unit (2A) includes a receiver for receiving an encoded
signal, storage means for storing a representation of said specific
start-up encoded signal, a comparator for comparing a received signal
with the representation of the specific start-up encoded signal
in the storage means, and a signal generator for generating the
activation signal when the comparator has determined that the received
encoded signal is identical to the representation of the specific
start-up encoded signal. |
| 8. |
An
anti-theft device (2) according to claim 7, wherein the storage
means also stores a representation of said specific shut-down encoded
signal, and the comparator also compares the received signal with
the representation of the specific shut-down encoded signal in the
storage means, and the signal generator generates the deactivation
signal when the comparator has determined that the received encoded
signal is identical to the representation of the specific shut-down
encoded signal. |
| 9. |
An
anti-theft device (2) according to any preceding claim, wherein
the control means (2A, 2B, 2C) is adapted to be placed in electrical
contact with a battery (3) of the vehicle, whereby said electrical
current supply is provided by the vehicle battery (3). |
| 10. |
An
anti-theft device (2) according to any preceding claim, wherein
the control means (2A, 2B, 2C) is adapted to be placed in electrical
communication with at least one other electrically operated component
of the vehicle, whereby the control means (2A, 2B, 2C) can control
the electrical current supply to the or each other component. |
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| 11. |
An
anti-theft device (2) according to claim 13, wherein the other component
is an engine control unit or an indicator light.
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| 12. |
An
anti-theft device (2) according to any preceding claim, further
comprising a tamper-proof housing within which the valve means (2D)
and the control means (2A, 2B, 2C) are housed.
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| 13. |
An
anti-theft device (2) according to any preceding claim, further
comprising a start-up unit (1) for generating and transmitting the
specific encoded signal.
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| 14. |
An
anti-theft device (2) according to claim 13, wherein the start-up
unit (1) includes a transponder for generating and transmitting
the specific encoded signal in the form of a radio wave.
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| 15. |
A
vehicle incorporating an anti-theft device (2) according to any
preceding claim.
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| 16. |
 A
method or preventing unauthorised use of a vehicle (2) comprising
installing a valve means (2D) in the fuel supply line of the vehicle
between a fuel tank (5) and an engine of the vehicle, the valve
means (2D) being operable, by an electrical current from a battery
(3) of the vehicle, to permit fuel flow from the fuel tank (5) to
the engine; and controlling the supply of electrical current from
the battery (3) to the valve means (2D) such that the supply is
only provided in response to a specific encoded signal, whereby
fuel can be supplied to the engine only in response to receipt of
said specific encoded signal.
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| 17. |
A
method according to claim 16, wherein the electrical supply to at
least one other electrical component of the vehicle is also controlled
such that the battery (3) is placed in electrical contact with the
or each other component only in response to receipt of said specific
encoded signal.
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| 18. |
An
anti-theft device for vehicle, comprising: a housing; a fuel supply
control line disposed in the housing and adapted to be disposed
in a fuel supply line of a vehicle; a valve means (2D) disposed
in the housing, the valve means (2D) being operable to open and
close the fuel supply control line thereby respectively permitting
and preventing fuel flow through said fuel supply control line;
and a control means (2A, 2B, 2C) disposed in the housing, the control
means (2A, 2B, 2C) selectively opening and closing the valve means
in response to receiving a specific encoded signal.
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| 19. |
An
anti-theft device for a vehicle according to claim 18, wherein the
valve means (2D) opens in response to an electrical current supply
and closes in response to the lack of said electrical current supply,
and the control means (2A, 2B, 2C) selectively enables and disables
said electrical current supply to the valve means (2D), the control
means (2A, 2B, 2C) enabling said electrical current supply in response
to receiving said specific encoded signal, and disabling said electrical
current supply at other times.
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| 20. |
An
anti-theft device according to claim 18 or 19, wherein the housing
is substantially tamper proof. |
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