CZ224494A3 - Device preventing theft of motor vehicles - Google Patents

Abstract

The device consists of at least a one-piece cover (8) surrounding it a fuel distribution and / or metering unit; \ tor. \ t a high voltage pulse distribution unit (5); a low voltage clock pulse source (2) provided with z , inside with fastening elements (9) for attachment to the block (10) engine arranged below the coded central locking lid (14), with the cover (8) below the central lid (14) at least one switch-disconnector is further provided (27) to eliminate clock pulses or distributions high-voltage pulses or for distribution switching and / or a fuel dispensing unit connected to the fuel cell an outlet (28) under any central lid (14) a codable logic member (29) connected by wiring (30) to the keypad (31).

Description

(57) The apparatus comprises at least a one-piece housing (8) surrounding a fuel distribution and / or dosing unit or a high voltage pulse distribution unit (5) or a low voltage clock pulse source (2) provided with fastening elements (9) for attachment to the block. (10) a motor arranged below the code lockable central cover (14), wherein at least one switch-disconnector (27) is further provided in the cover (8) under the central cover (14) to eliminate clock pulses or distributed high-voltage pulses / or a fuel metering unit connected to an outlet (28) below the central lid (14) of any encodable logic member (29) connected by a wiring (30) to the switch keypad (31).

AND

Anti - theft devices for motor vehicles,.

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Field of the Invention

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The invention relates to an anti-theft device for motor vehicles. ;

BACKGROUND OF THE INVENTION

As is known, most of the lock inserts at the vehicle body door are arranged in a central lock system, that is, with one key it is possible to unlock any lock insert. It is also well known today that unauthorized persons are equipped with the experience to use the foil to expose the tumblers of known lock cylinders and to open the lock in a very short time. Unauthorized persons are able to obtain a duplicate key to the vehicle, for example, according to the lock of the previously stolen tank cover or even in organizing theft of vehicles sold through various bazaars, but also according to models supplied by various ignorant car repairers and the like. Thus, lock cylinders are almost ineffective in protecting the vehicle against theft without additional protective systems. The use of keys with magnetic coding or other duplicate protection is not common for conventional dimensions and types of known lock cylinders.

For example, mechanical restraint devices mounted on one of the vehicle wheels are known as additional protective systems. Usually, these are relatively complicated structures fixed to the wheel from the outside and also usually locked from the outside, when transporting a large place of accessibility of the lock from the outside, then rains a sufficient obstacle to theft of vehicles against theft widely deployed and is only used to temporarily immobilize vehicles mainly due to violations of the rules according to the regulations on parking, parking, etc.Equipment is expensive, occupy and precisely from a relative point of view not for many offenders. Therefore, this way of securing this mechanism is also known. They lock together with a telescoping bar with a lock of the brake pedal or a clutch with a steering wheel, possibly with a handbrake lever and the like in a fixed lock connection. It is a relatively efficient device, but a potential theft, after relatively easy intrusion into the vehicle, has many options in relative safety in hiding in the vehicle to disengage the lock by hooking the foil or destroying the device, especially after using liquid nitrogen. seconds, the steel parts become so brittle that they break after striking.

Widespread anti-theft devices are various alarms, wired for the visual and acoustic signaling of any change in the parked vehicle. Sensors, door-to-door and other sensors in the passenger compartment of the vehicle, after registering any abnormal situation, either after releasing the switch or disturbing the homogeneity of the cab space, after a certain period of time. -trazný mode. For example, the siren will sound and all four direction indicators will flash, possibly bypassing the inductor coil or other consumer circuit, which prevents the drive unit of the motor vehicle from operating for a set period of time. Most alarms are supplemented with shock sensors that have adjustable sensitivity, but in cases where the vehicle is parked at a location other than the usual, where, for example, the road is exposed to shocks from trams and heavy goods vehicles. these alarms give a false alarm, to which the public usually no longer responds. For the above reasons, most vehicles have this sensor blocked. A remote control is usually used to activate or deactivate alarms, as a rule? locking and unlocking the vehicle doors. The measurement of the frequency transmitted by the remote control is a matter of seconds and any vehicle equipped with this function can be unlocked using the generator. 'Another category of vehicle theft protection is immobilisers, which are, for example, an additional alarm protection and in their function disconnect the individual electrical circuits of the vehicle (pump (indicator coil, starter, etc.). The connection of the electrical circuits takes place only after the use of the interconnecting key, i.e. the direct connection of the individual electrical circuits, or by the switching of the whole system using, for example, a magnetic card, a key with a chip. Electrical distribution

'.vodičů adds several conductors without any functions ^{χ -ιιι_Η} ιβ ··· ·· ^ 4Μ | Μ * ι βΜΜ · «· * (« · 4th · ·· + * have hamper bridging the respective electrical circuit when Due to existing developed types of immobilizers after detecting their type, it is no problem for an unauthorized person to disconnect or bypass the entire protection system.

SUMMARY OF THE INVENTION

It is an object of the invention to provide a highly mechanically resistant, relatively inexpensive but effective anti-theft device, without interfering with the vehicle structure, without affecting their driving safety, performance or energy consumption, the essence of which is. It consists of at least one-piece housing surrounding the distribution. and / or a fuel metering unit or a high voltage pulse distribution unit or a low voltage clock pulse source provided with internally fastening elements to be attached to the engine block arranged below the code lockable central cover. wherein at least one switch-disconnector is provided in the housing "below the" central "lid" to eliminate clock pulses or distributed high voltage pulses or to switch the fuel distribution and / or metering unit connected to the output below the central lid an arbitrarily encodable logic member connected by a wiring to the switch keypad, wherein the multi-part cover is also provided with internally arranged connecting elements.

Advantages of the solution according to the invention consist mainly in the fact that the system is activated by means of a keypad using a 6 to 9-digit code of ten digits with a high combination option. replacement code. not requiring recoding from the user. With three or five times repeated selection of the koau, nu t-uo ρουζi c 1 jl 1 is introduced. The outcome is that the assembly and operation are undemanding and the drive unit is locked in such a way and on in such a place that the use of brute force will damage the drive unit and disable the vehicle. The electrical wiring accompanying the proposed solution shows stability and reliability, is easily disconnected by an authorized user in case of failure, does not exclude a combination with an alarm. where user coding prevents misuse by third parties.

For strength reasons, it is furthermore advantageous according to the invention that the cover or at least one of its parts can encircle the shaft extension of at least the high voltage pulse distribution unit and / or the low voltage clock pulse source, including gripping elements for fastening them to the motor block.

In order to prevent unauthorized manipulation and to completely prevent access to the space inside the housing, it is furthermore advantageous according to the invention that the central lid is provided with a centrally arranged opening of the housing or of the housing. 3

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CJ JL. A plunger with which at least one housing of arbitrarily angularly adjustable circular segments, each with at least one circumferential recess corresponding to the shape of the shaft diameter, engages at least one circumferentially arranged recess in the housing, the circular segments being arranged on rotatable relative to each other parallel shafts provided at their free ends below the central lid with angularly adjustable circular dials with central drivers for their angular rotation through an opening in the central lid.

The internal space of the cover according to the invention makes it possible to provide a spark gap, a pulse generator and the like. _?

BRIEF DESCRIPTION OF THE DRAWINGS r

The only figure is a schematic representation of the most commonly used ignition engine ignition system, surrounded by an engine block cover fitted with a central code lockable lid with electrical equipment to paralyze low voltage or high voltage pulses with a logic member and a keypad to unlock the switch-disconnector.

DETAILED DESCRIPTION OF THE INVENTION a.

IM IM IM IM IM · IM ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί IM IM ί IM IM IM IM IM IM,, ¹ b apparatus according to the invention in a basic embodiment. shown in the figure. illuminated on the basis of the well-known and widely used ignition system for four-cylinder petrol engines.

Example 1:

The ignition system 1 comprises a low voltage source 2 of clock pulses, synchrone with engine main shaft speed transmitted to the induction coil 3 of the high voltage system 4, from which the induced high voltage is transferred back to the distribution unit 5 for the individual spark plugs ^: As a rule, the distribution unit 5 arranged above it is bound by a mechanical coupling by means of a shaft 7, the rotational movement of which is derived from the engine camshaft (not shown). When the ignition system 1 is energized, the engine can be started with the starter, crank or push vehicle. The current means of protection of this ignition system 1 is just failing to bring the necessary ones in parallel

...... ..... the voltage into this system is not an insurmountable obstacle for people's non-aviaries.

The device described below is designed specifically to ensure that the operation of this ignition system 1 is paralyzed even when it is energized, or that it is capable of transmitting to the vehicle base anti-phase high voltage pulses that interfere with the operation or other different paI replacement ignition systems connected in parallel. To this end, an anti-theft device for motor vehicles equipped with said ignition system 1 consists of at least a one-piece housing 8 surrounding, alone or in combination, a high voltage pulse distribution unit 5 or a low voltage pulse source 2. The cover 8 is provided with fastening elements 9 for attaching to the engine block 10, if any, if the cover 8 is readable (for example, if it is provided with the indicated lower extension 12). In the region of contact of the cover 8 and its lower extension 12, a possible sleeve 13 can be clamped, firmly clamping the shaft extension 7 (not shown) and the like.

The cover 8 is provided with a code lockable central lid

14. which is provided with an eccentric hole 15 and an axially fixed shaft 16 with at least one radial plug 17 with which at least one set of arbitrarily angularly adjustable circular segments 18, each with at least one circumferential recess 19 corresponding to, comes into engagement The ring segments 18 are arranged on rotatable parallel shafts 20 provided at their free ends below the central cover 14 with angularly adjustable, for example circular, dials 22 arranged on the triangle 21 with central drivers 23 for their angular rotation by means of a wrench 24 through the aperture 15-in-the-center-in-the-14-the Gentral-in-the-14 is still freely rotatable in the housing 8. ^Ξ

At least one switch-disconnector 27, shown in the form of a relay, is arranged in the housing 8 under the central lid 14 to compact the low-voltage clock pulses for the high-voltage system 4 or directly distributed high-voltage pulses. an arbitrarily encoded logic member 29 connected by a wiring 30 to a switch keypad 31. The switch-disconnector 27 may naturally be constructed on the basis of transistor switching elements and the like. The logic element 29 comprises, for example, an arbitrarily encodable connector 32, a logic circuit 33 with a comparator 34, and a RESET button. Further, in the compact 26, a backup battery source 35 may be provided for, for example, to provide operation of the logic member 29 in non-standard situations, a spark gap 36 for discharging the voltage of the high voltage system 4 and optionally an interfering anti-phase high voltage pulse generator 37.

The assembly may be equipped with a delay member (not shown) to turn off the ignition or the fuel metering system. for example, when descending a steep descent or turning off the engine at intersections, standing in front of refueling stations, stalling the engine in an inappropriate manner, starting a vehicle, or in the event of a similar unexpected engine failure, or driving into operator parking boxes.

H |> iii »rtni.nWiiMim —ihiwr — wriiHW» ¹¹ · - »wy» n · 11 »rti i Use the keypad 29 to select the appropriate code. The time constant of the delay member may be selectable depending on the driving mode and the ways of parking the vehicle, whether in guarded or unattended locations. This time constant can be entered in advance, for example at the same time as entering one of the possible optional basic codes before or after the journey, before reaching the destination and after recognizing its safety character. An independent battery pack 35 can be used to maintain the required voltage for the not shown delay member 35. However, if the power supply or control voltage to the switch-disconnector 27 is destroyed in any way, or other than the allowed codes from the keyboard 29 are selected, logic engagement will lose.

The function of the described device is as follows: A suitably selected housing 8 is fitted to the existing low voltage source 2 and the high voltage pulse distribution unit 5 and is fastened to the engine block 10 by means of fastening elements 9,

......... 'possibly' combines with the corresponding lower extensions Ϊ2.

By means of the respective unmarked connectors, the compact 26 is connected, whereupon the individual circular segments 18 are rotated so that their peripheral recesses 19 face the center of the housing 8. The circular dials 22 are lifted and angularly adjusted at the angles 21 so that some of the numerical marks of their dials directed κ radially outwardly from the cover 8. The outer peripheral combination of the numeral marks then forms a lock code. Annex, the central ^one 14, and optionally the lid viewing window over the aperture 15 in the gradual turning of the central cover 14 is checked against the set numerical code mark 40 on the upper surface of the central lid fourteenth

Subsequently, the individual dials 22 are rotated differently through the aperture 15 by means of a key 24, while simultaneously engaging the radial groove 17 of the shaft 16.

- +. The different parts of the circuits of the circle segments. 18.

AND

Without knowing the setting of said lock code, the central lid cannot be removed from the cover 8. This measure. inside the housing 8, all units and mechanical connections are not accessible to the unauthorized person 2 of the keypad 31 installed in the vehicle cabin, the corresponding logic element 29 is fed to the logic element 29 by means of the wiring. The evaluation of the pulses in the logic circuit 33 and their comparison in the comparator 34 is unlocked by the otherwise closed normally open switch-disconnector 27. The ignition system 1 can then operate normally. Activating the system using the keypad using a 6 to 8 digit code of ten digits has a high combination capability. When renting a vehicle or when it is parked for service, it is possible for a shorter time. use t.zv. replacement, code not requiring recoding from the user. If the wrong code is repeated 3 to 5 times, reset by pressing the RESET button after removing the central cover 14 or possibly waiting for the set time delay to pass.

Example 2 ^;

Some ignition systems have a low voltage source 2 separated from said shaft 7 and the pulses give inductive sensing of the respective mark on, for example, the crankshaft flywheel circumference. In this case it would be advantageous locking "only ^- as the" low-voltage-supply-2-assistance-t-described - ~ -8- housing, including other accessories also described, that the electrical equipment is for example only for counteracting nízkonaúěťových and thus can be simpler. Naturally, in this case too, the attachment of the cover 8 to the engine block 10 will be rendered inaccessible.

Example 3 · '

In the case of vehicles incorporating fuel metering units, positive-ignition engines with direct or indirect fuel injection, compression-ignition engines, they may also be fitted with the device described above in such a way that the metering units (not shown),

AND

The fuel supply solenoid valves (not shown) enclose at least a one-piece housing 8 with the corresponding electrical equipment, which disconnects or otherwise paralyzes the operating voltage supply required for the operation of these fuel metering units or the electric conduit.

Claims (7)

1- Anti-theft device for motor vehicles, characterized in that it consists of at least one-piece housing) 8) surrounding the fuel distribution and / or dosing unit or the distribution unit ¢ 5) high voltage pulses or low voltage source ¢ elements ¢ 9) for mounting to the engine block ¢ 10) arranged under the code lockable central lid ¢ 14), wherein at least one switch-disconnector ¢ 27) is further provided in the housing ¢ 8) under the central lid ¢ 14) to eliminate clock pulses or distributed high-voltage pulses or for switching the fuel distribution and / or dosing unit., connected to the output ¢ 28) below the central cover ¢ 14) of an arbitrarily encoded logic element ¢ 29) connected by the wiring ¢ 30) to the switching keypad ¢ 31). Device according to claim 1, characterized in that the cover (8) consisting of a plurality of parts is provided with internally arranged _L connecting elements (11). Device according to claim 1, characterized in that the cover ¢ 8) or at least one of its parts surrounds the shaft extension of at least the distribution unit ¢ 5) and / or the low voltage source ¢ 2) of the pulse pulses, including the gripping elements ¢ 9) attachment to bloku 10) engine block. 4 ~ ~ felled Zarízen'í n'ároku ~ ^- 1 ~ TICK í'c'í j ~ ^_ se'ťí'm7 that ^- valuable '¢ tral lid 14) is fitted through an orifice miraostredně ¢ 15) and axially fixed connected shaft ¢ 16) with at least one radial groove ¢ 17) with which at least one wheel in the housing ¢ 8) engages a set of arbitrarily angularly adjustable circular segments ¢ 18), each with at least one circumferential recess ¢ 19) corresponding to the shape shaft diameter ¢ 16). Device according to claims 1 and 4, characterized in that the annular segments (18) are arranged on rotatable mutually parallel shafts (20). provided at their free ends below the central lid (14) with angularly adjustable circular dials (22) with central drivers (23) for their angular rotation through an opening (15) in the central lid (14). - Device according to claim 1, characterized in that a spark gap (36) is arranged in the housing (8), Device according to claim 1, characterized in that a disturbance pulse generator (37) is arranged in the housing (8).