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TEC-67231-2 Technical description Prizrak-8xx BT
Immobilizer
Immobilizer
— the anti-theft feature was designed for protecting the vehicle from carjacking while in parking. The immobilizer feature enters
the «Guard» mode if the ignition has been switched off for more than 3 sec. Once the feature has switched to «Guard mode» — it is required to
complete an authentication procedure (see Table 3 «Authentication methods») otherwise the vehicle will be immobilized:
•
the vehicle will be immobilized after attempting to drive away without authentication (if «Speed monitoring» function is enabled and is
supported by a particular vehicle. Check this function in the Integrator);
•
the vehicle will be immobilised in 5 seconds after the ignition is switched on if the «Speed monitoring» feature has been disabled or is
not supported by a particular vehicle.
AntiHiJack
AntiHiJack
is a feature designed for protecting a vehicle from hijacking while it is being operated on the road and while it is parked. AntiHiJack
enters the «Guard» mode in the following situation:
•
The ignition has been off for more then 3 sec. ( if Immobilizer feature is disabled, if Immobilizer is enabled — the alarm follows the
Immobilizer feature algorithms).
•
The driver’s door has been opened.
After switching to Guard mode, AntiHiJack function sequentially passes through several phases, and if it is not deactivated by a radio tag
and/or PIN code-the vehicle will be immobilized. Phases are shifted just only while the ignition is ON. After switching the ignition OFF, the alarm
remembers the last phase of the AntiHiJack and the feature will continue to operate when the ignition is switched back ON. The AntiHiJack may
be deactivated in any phase and at any moment by carrying out an authentication procedure.
The «Guard» mode is divided into the following phases:
•
Waiting phase;
•
Warning phase;
•
Engine locking phase.
Waiting phase.
AntiHiJack in this phase follows two different algorithms-depending on possebility of «Speed monitoring».
The AntiHiJack waits until the vehicle covers a set distance starting from the moment of «Guard» mode activation if the «Speed monitoring»
has been implemented and/or supported by a particular vehicle.
If «Speed monitoring» hasn’t been implemented (disabled in the «Hardware configuration» menu) or is not supported by a vehicle, than the
«Waiting phase» is devided into three stages:
•
Waiting for the driver’s door to be closed.
•
Waiting for a preset amount of brake pedal applications.
•
Pause before shifting to «Warning» phase.
Warning phase is devided into two stages.
•
Vehicle’s driver warning about necessity to enter PIN code.
•
Warning the other drivers on the road of possible dangerous situation by flashing the vehicle’s hazard lights (during 10 seconds) due to
upcoming vehicle immobilization.
•
The warning beeps will keep informing the driver about necessity to enter PIN code.
Engine locking phase.
the engine locking is triggered, the alarm beeper emits warning beeps and the alarm switches on the hazard lights.
The warning beeps and hazard lights will switch off in 15 sec. AntiHiJack remains in engine locking phase until a PIN code is entered.
If «Engine blocking at a safe speed» is enabled — the engine will only be blocked when the vehicle’s speed drops below 30 km/h or after
it comes to a complete stop, this depends on the settings of the «Engine blocking at a safe speed» feature.
The «Engine blocking at a safe speed» feature reduces the possibility of road accidents when the AntiHiJack is triggered.
After switching the ignition off the alarm disables hazard lights and driver audio warning signals. If Immobilizer function hasn’t switched into
the «Guard» mode (see the Immobilizer feature section) then after switching the ignition ON — hazard lights and driver audio warning signals
will be activated for 15 seconds. Herewith, AntiHiJack allows starting the engine, but prevents vehicle driving according to the same algorithms
as the Immobilizer feature does.
If the Immobilizer feature has switched into the «Guard» mode — then after turning the ignition off, AntiHiJack will stop its operation and the
alarm follows the Immobilizer feature algorithms.
Gas pedal locking (forced stop)
The feature will immobilize the vehicle if AntiHiJack is triggered, considering the settings of the «Engine blocking at a safe speed». To
implement this fiunction it is obligatory that the vehicle supports the «Speed monitoring». At the end of Warning phase, if vehicle speed hasn’t
increased within 5 seconds or brake pedal has been pressed within 3 seconds — the gas pedal lock will be triggered for 2 sec. and then disabled
for 5 seconds. This can be repeated for 5 times. Every time gas pedal lock triggers — time duration for which the gas pedal locking will be released,
reduces for 1 second. After the 5-th time the gas pedal lock will be permanent.
It is a must that for «Gas pedal locking» function operation the «Safe engine locking» function to be enabled.
Immobilizing a vehicle by imitating the engine Start/Stop button push
The feature has been developed for vehicles equipped with the Start/Stop button (Push-to-Start button). This anti-theft feature allows to
shutdown the engine by imitating the Start/Stop button push, making the engine blocking very similar to a usual engine shutdown. To implement
such engine locking the alarm output with the programmed feature № 57 («Immobilizing a vehicle by imitating the engine Start-stop button
push») must be connected to a proper wire of the Start/Stop button. When a pulse signal is applied to that wire — the engine must shutdown.
Operation algorithm:
1
If the Immobilizer feature has triggered:
•
For vehicles with A/T — when the gear lever is shifted from «P» or «N» to «D» the signal is generated on the output until the engine shuts
down.
•
For vehicles with M/T — when the vehicle starts moving — the signal is generated on the output until the engine shuts down.
2
If AntiHiJack has triggered:
The output will generate the signal after the vehicle comes to a complete stop. If the alarm doesn’t recieve the speed data from the CAN-bus,
the vehicle’s engine will be blocked according to the Immobilizer feature operating algorithms when starting the engine next time.
Settings of the options «Engine locking at a safe speed» and «Ability to start the engine before carrying out authentication» don’t affect
the operating algorithms of the «Immobilizing a vehicle by imitating the engine Start/Stop button push».
