841005505 - E7018 PASSIVE ENTRY CONTROL UNIT DESCRIPTION
Description
The Passive Entry system consists of a Passive Entry control unit that directly manages entry into the vehicle, a keyless-go device and a control unit which electronically regulates the locking/unlocking of the steering.This system allows "passive" entry into the vehicle becuse no type of control mechanism (key, remote control, etc.) is used.The Passive Entry control unit manages the following functions via the CAN with the Body Computer: central locking See E3040 CENTRAL LOCKINGfuel flap See E3045 BOOT AND FUEL FLAP OPENINGelectric windows See E3050 ELECTRIC FRONT WINDOWS See E3051 ELECTRIC REAR WINDOWSsun roof See E3060 SUN ROOFand, with the keyless-go device, the function of locking/unlocking the steering See E5010 STARTING AND RECHARINGThe CID (Customer Identifcation Device) makes it possible to be identified by the Passive Entry control unit without the need to press buttons or use any control devices. It is sufficiently to simply approach the vehicle with the CID in order to be recognized.The recognition takes place through one of the aerials located on both sides of the vehicle, at both the front and the rear. The CID maintains the radio frequency remote control functions that allow remote operation.It is a shape that distinguishes it from the remote control and integrates the management electronics of the Passive Entry and the mechanial insert (no longer retractible but simply extractible, because it is only used in cases of emergency).All the handles on the vehicle can carry out two types of manoeuvre starting from a stable position:
handle pulling: the handle can be pulled towards the outside opening the door.
handle pressing: the handle can be pushed inwards locking the locks.
The boot handle, on the other hand, is two-way, allowing the boot to be opened by pulling it and the vehicle to be locked by pressing it.The display in the instrument panel is used for personalizing the options that can be set. The auto-close function makes it possible to automatically lock the vehicle locks after the customer has left the vehicle, thereby ensuring that the vehicle is not accessible when the customer moves away.The system starts a period check on one or more CIDs inside or outside the vehicle. When no CID is detected, the system implements the control of all the locks. The locking is signalled by a beep from the alarm system.The autoclose function does not switch on either the alarm system or the dead-lock and does not allow the steering to be locked.The dead-lock function can be activated using the buttons on the CID. This function comes on the moment the doors are locked, by pressing the handle a second time within a second of pressing it the first time. The engagement of the dead-lock is therefore a voluntary action.Taking advantage of the ability of the Passive Entry system to recognize whether the CID is in the passenger compartment, the system allows the action of engaging the dead-lock function using the remote control to be inhibited preventing the possibility of being accidentally locked in the vehicle: the unlocking of the locks will be automatically implemented.Each time it is used the CID sends information on the state of charge of its battery. If the CID battery is close to being run down during starting, a warning message is displayed on the instrument panel or the info-telematic display which warns the driver of the need to replace the battery.The steering lock is managed by the Body Computer which sends the signal for locking/unlocking the steering to the steering lock control unit via the CAN. The clutch pedal is used to enable the starting manoeuvre. The brake pedal is used where automatic transmission is fitted.The accelerator pedal allows the driver to carry out the emergency starting procedure if there are serious problems with the system.The key-less go system prevents the engine from being started by unauthorized presons, by automatically recognizing the authorized driver and immobilizing the steering column and preventing the engine from being started completely electronically.It also dispenses with the engagement of recognition/control components inside the ignition switches.The driver presses the clutch pedal and then the button: the engine is started: Pressing the clutch pedal is required to guarantee that whoever is carrying out the manoeuvre effectively has the intention of moving the vehicle.If, during the manoeuvre, the CID is not in the passenger compartment or the CID battery is run down, the instrument panel is activated and it signals the impossibility of starting the engine through the "Electronic key not recognized" message: the starter motor does not turn over.With the engine started and the vehicle stationary, when the button is pressed the engine is switched off and the instrument panel is deactivated.If the vehicle is not stationary, i.e. the speed is above 10 Km/h, the button should be pressed for more than 2 seconds (voluntary action in cases of emergency).