RU62365U1 - VEHICLE POWER LOCK DEVICE FOR VEHICLE STARTER - Google Patents

Abstract

The power lock device for a vehicle’s starter belongs to the field of systems for preventing theft of vehicles, guarding and protecting, in particular, a car from theft, and can be used in any anti-theft systems on vehicles with any type of engine. Standard devices have the limitation that they are well known, and therefore have become more accessible for unauthorized interference in order to disarm the system. Such a lock is usually located in an accessible place, and is easily dispensed with when accessing the engine compartment. In addition, the current switched by such a lock is no more than 30 A, which makes this type of lock easy to bypass for a hijacker. To eliminate these shortcomings, starter locking devices are necessary that would not allow using modern technologies to unauthorizedly control the blocking element or bypass the lock. Figure 2 shows the power circuit and the starter control of the vehicle with a power interlock. When the “start” contacts in the ignition switch 7 are closed, power is supplied through the control circuit of the starter 2 to the solenoid relay of the starter 6. The actuation of the solenoid relay 6 closes the built-in contacts of the power circuit of the starter 1 and the power goes to the power relay of blocking 9. If this happens, lock control circuit 3 there is an unlock signal, the lock relay 9 is in the closed state and the motor starts. If the signal is not present, the relay is in the open state, then the starter motor does not start. The control signal is generated by the locking control mechanism 10. Thus, the supply wire breaks the relay directly on the starter motor, and not on the section of the control circuit of the starter relay, or the control circuit of the solenoid relay, which eliminates the possibility of bypassing the lock by simple means due to the inaccessibility of the installation site and the need to commute large currents (up to 1500 A) flowing through the blocking device at the time of starter operation. 1 n.p. f-ly, 2 ill.

Description

The power lock device for a vehicle’s starter belongs to the field of systems for preventing theft of vehicles, guarding and protecting, in particular, a car from theft, and can be used in any anti-theft systems on vehicles with any type of engine.

Known power starter locking devices implemented in almost all existing security systems and complexes of foreign and domestic production, such as GUARD, BLACK BUG, ALLIGATOR, MED, etc., including blocking a portion of the starter relay control circuit, i.e. control contact of the relay [1, 2, 3, 4, 5].

However, these devices have the limitation that they are well known, and therefore have become more accessible for unauthorized interference in order to disarm the system. Such a lock is usually located in an accessible place, and is easily dispensed with when accessing the engine compartment. In addition, the current switched by such a lock is no more than 30 A, which makes this type of lock easy for the hijacker.

To eliminate these drawbacks, such methods of blocking the starter are necessary that would not allow, using modern technologies, unauthorized control of the blocking element or bypass the lock.

The objective of this utility model is to increase the reliability level of security systems and protect the vehicle from unauthorized control, increase the secrecy of the vehicle’s starter lock, and the technical result makes it as difficult as possible for a hijacker to steal a vehicle, i.e. exclude the possibility of starting the vehicle engine.

This problem is solved in that the device for locking the starter of the vehicle by locking the starter is characterized in that it contains a power locking relay, which serves to break the starter power circuit after the contact of the retractor relay directly on the starter motor in the circuit section retractor-starter retractor.

The device is illustrated in the drawings, which show:

Figure 1 - Power and starter control circuit of a vehicle

Figure 2 - Power and starter control circuit of a vehicle with a power interlock

The numbers in the figures indicate: 1 - starter power circuit, 2 - starter control circuit, 3 - interlock control circuit, 4 - battery, 5 - starter motor, 6 - starter retractor relay, 7 - “start” contacts in the ignition switch. 8 - section of the circuit solenoid-starter relay, 9 - power interlock relay, 10 - interlock control mechanism.

The claimed device works as follows:

The figure 1 shows the power supply circuit and control the starter of the vehicle, a regular starter system without a power interlock relay. When the “start” contacts in the ignition switch 7 are closed, power is supplied through the control circuit of the starter 2 to the solenoid relay of the starter 6. The operation of the solenoid relay 6 closes the built-in contacts of the power circuit of the starter 1 and, through the section of circuit 8, the power is supplied to the electric motor of the starter 5, which to start the electric motor.

Figure 2 shows the power supply and starter control circuit of a vehicle with a power interlock. When the “start” contacts in the ignition switch 7 are closed, power is supplied through the control circuit of the starter 2 to the solenoid relay of the starter 6. The actuation of the solenoid relay 6 closes the built-in contacts of the power circuit of the starter 1 and the power goes to the power relay of blocking 9. If this happens, lock control circuit 3 there is an unlock signal, the lock relay 9 is in the closed state and the motor starts. If the signal is not present, the relay is in the open state, then the starter motor does not start. The control signal is generated by the locking control mechanism 10.

Thus, the supply wire breaks the relay directly on the starter motor, and not on the section of the control circuit of the starter relay, or the control circuit of the solenoid relay, which eliminates the possibility of bypassing the lock by simple means due to the inaccessibility of the installation site and the need to switch large currents (up to 1500 A) flowing through the blocking device at the time of starter operation.

The starter, as a rule, is installed in an inaccessible place in the engine compartment and consumes high currents of up to 1,500 A during operation. A power interlock is installed in an inaccessible place in the engine compartment of a car - after the contact of the starter’s retractor relay, it breaks the starter motor’s power supply circuit in the retractor circuit -starter.

The inventive device is a thermostable electronic chopper, enclosed in a metal casing, has a non-separable, completely sealed design. The control is carried out by an encoded signal along the control wires. The device has 2 stable states “open” and “closed” and maintains operability while reducing power in the vehicle’s on-board network to 5 volts.

Two principles of blocking control are used: active and service. The active principle allows you to keep the circuit constantly open and close it if necessary - when starting the engine of a car that has been disarmed. The service mode provides a lockout lock whenever an attempt is made to start, regardless of the state of the security system.

When you try to bypass the lock circuit, the starter motor turns on, which creates additional inconvenience for the hijacker.

In addition, when you turn the ignition key in a car with a power lock on the starter, the starter battery emulates a dead battery, which misleads the hijacker.

The power interlock can also be electromechanical, with two stable positions “closed” and “open” even when the control wires are disconnected. The use of this design of the locking mechanism reduces the secrecy of the device, but allows it to be used on trucks with 24 volt power and even larger (more than 1500 A) starting currents.

The power lock device can be used as a separate anti-theft system - an immobilizer, and can be part of a security complex. In this case, all the classic and original functions of security systems or complexes are preserved.

Such a power lock can be used in modern trucks and cars, on special equipment and other units, both with gasoline and diesel engines.

The device for power locking the electric motor of the starter of an automobile engine by breaking the power supply circuit directly on the electric motor of the starter makes it possible to increase the degree of security of the security system or complex, and it can be used either as an independent device or to supplement an existing security system.

The advantages of this type of lock are:

- Installed on any cars.

- Optimum for cars with an automatic transmission.

- Installed in an inaccessible place.

- It is not diagnosed by a regular on-board computer (does not introduce errors into automotive equipment when triggered).

A device operating according to this principle cannot be “bypassed", due to the need to switch large currents (up to 1500 A).

The claimed device is tested in the alarm system of the car and has shown its high efficiency and reliability.

Information sources:

1. http://www.autoelectric.ru - server of automotive electrics and electronics http://www.autoelectric.ru/alarm.html

2. Recommendations for installing the GUARD car alarm system model RF-325 p.4 http://www.meorida.ru/pdf/rf-325_rek269.pdf

3. Recommendations for installing the BLACK BUG PLUS BT071N car alarm system http://ugona.net/online/system/blackbug/bt071N/bt071Niu.shtml

4. Installation instructions for the car alarm system ALLIGATOR S-700RS http://autoguard.narod.ru/alarm/s700rs-m.htm http://www.autoelectric.ru/autoalarm/alligator/m-alligator.html

5. Installation and operating instructions for MED 30.2D http://www.autoelectric.ru/autoalarm/med/med30-2d/med30-2d.htm

Claims (1)

A vehicle starter power interlock by locking the starter, characterized in that it comprises a power interlock relay that serves to break the starter power circuit after the contact of the retractor relay directly on the starter motor in the “retractor-starter” circuit section.