Device and principle of operation of the LIGHT ASSIST Light Management System. Long-Light Management System Purpose Light Assist

Another auxiliary system, designed to facilitate the work of the driver and improve driving safety, was named Light Assistant. This system automatically controls the switch between the near and distant light of the car. Her main task is to give the driver the opportunity to drive as much as possible in the conditions of best illumination.

Depending on which headlights are applied by car, the principle of operation of the system changes. If the headlights are halogen, the automatic switching on and off of the overall light, depending on road Conditions. In xenon headlights, the distant light does not turn off, and the blinding of the oncoming drivers is prevented due to the fact that the lamp module automatically rotates vertically or horizontally.

How Light Assistant works

The main components of the system are a black and white camcorder tracking the road atmosphere and a control unit. In addition, the ECU receives information from wheel and illumination frequency sensors. Based on the analysis of all incoming information, the control unit determines the conditions of visibility, the trajectory of the movement of the machine, the degree of illumination and the force of the oncoming light flux.

In order for the Light Assistant system to turn on the distant light, the following conditions must be respected:

• middle Light included;
• there is insufficient illumination;
• the car moves at a certain speed;
• there is neither counter-coming vehicles in front of the machine;
• riding outside the settlement.

It is also possible to mechanically enable or disable this function.

As soon as in the sector of the camcorder, a counter-or passing car appears, the control unit calculates the distance to it, and upon reaching the threshold, while the light beam has not reached a different vehicle, switches the far light to the closeness, or moves the lamp modules.

In settlements, the level of illumination is additionally estimated. If it is high enough, only the neighbor is turned on, otherwise the long-distance.


Thus, thanks automatic control Headlights, no need to independently change the lighting mode and make sure that the driver of the counter transport is not blinded.

The far-blind light management system is designed to improve visibility in the dark due to the automatic inclusion of high headlights. In this case, the system allows you to move with distant headlights the highest possible time, prevents the blinding of other participants in the movement, facilitates driving a car, and thereby increases the safety of motion.

The far-blind light management system is implemented depending on the type of headlights:

• halogen headlights - due to automatic switching on (shutdown) of emergence of headlights (for example, system Light Assist.);
• xenon headlights - due to the automatic rotation of the lamp module in the vertical and horizontal plane, while the far lights of the headlights do not turn off (for example, the system Dynamic Light Assist.).

The automatic dialing light system includes a light switch, camcorder, control unit, a range light (lamp module), as well as a control lamp on the instrument panel.

The Lart Light Management System is activated by the lighting switch, when transferring it to a certain position.

The system uses a black and white camcorder that fixes the situation in front of the car. The range of camcorder coverage is about 1000 m. The camcorder together with the control unit is located in the housing of the rearview mirror.

Along with the information from the camcorder in the operation of the system, the input signals of the rotational frequency sensors are used ( to estimate the velocity of the car), light sensor ( to estimate the level of illumination).

The control unit performs the image processing of the camcorder and signals of the sensors, on the basis of which the situation is estimated:

• visibility conditions:
• trajectory of movement;
• light level;
• the power of the oncoming light of light.

Depending on the specific situation, it is turned on-off (turning the lamp module) of the headlights of the headlight.

The control lamp on the instrument panel reports on the inclusion of the system and the nature of its operation.

Principle of operation of the system

The Lart Light Management System automatically includes far headlights while simultaneously performing the following conditions:

• low light level;
• the work of the near light of the headlights;
• movement of the car at a certain speed;
• the absence of ahead of the walking or oncoming vehicles (cars, motorcycles);
• movement outside settlements.

In order to prevent the blinding of other participants in the movement of the far light of the headlights automatically turns off if there are oncoming or in front of the traveling vehicles. Switching is performed when the vehicle is found in the system coverage zone and at a certain distance from the car (the beam of long-distance light should not reach the vehicle). When driving (overtaking) with vehicle Far light automatically turns on.

When moving around the settlement, the system works depending on the level of illumination level. If the external light is estimated as sufficient, then automatic switching to the dipped headlights occurs. Otherwise the movement of the car through locality It is carried out with distant headlights.

Installation and Setup Instructions for FLA (Far Light Assistant) on the MQB Auto Platform on the example Volkswagen Passat. B8.

Good day, Wagdreiver!

Far Light Assistant (Front Light Assist)it serves to automatically turn on or off the distant light of the car. In order for the far light to automatically turn on, you need to translate the lighting into the AUTO mode and turn on the far light by the lever movement from yourself. While the car is worth, you will only work with the Middle Light, but if in the dark to accelerate up to speed above 60 km / h, then in the absence of oncoming transport, the FLA system automatically turns on the distant light. The camera on the rear view mirror controls the transport stream. With its help, the system recognizes the car and moving in front of the car and automatically switches back to the dipped light.

In order to install the FLA system on the VAG car, built on the MQB platform, you need to purchase:

1) Warmless rear view mirror with automatic darkening and built-in camera 3G0 857 511 AE

2) Mirror bracket linings

3) Wiring harness to connect to the CAN bus

Additionally, you will need:

• Screwdriver Set
• Wedge for dismantling plastic parts
• Torx T20 screwdriver
• Merchant Isol
• Plastic ties

1) the first thing to do is to remove the native original rearview mirror:

• To do this, it is necessary to arma with plastic filming and with the help of them to dissemble both decorative lining of the rear-view mirror support;

• After the lids are removed, you can remove the mirror itself. It is removed by turning against a clockwise arrow relative to the point of its attachment to the windshield;

• When the mirror turns out to be in your hands, you can disconnect the power connector from it and postpone your native mirror (it will no longer need it).

2) Now you can wiring. You need to sequentially turn the connector for the mirror and stretch the new wire from the mirror to Gateway:

• In the wiring connector that connects to the mirror, it is necessary to make a turning. Namely, it is necessary to remove the white wire from the connector from the connector and rearrange it in accordance with the photos below, and add two CAN busbars in the connector;

• Now you need to stretch the wires of the CAN bus to the connection point. To make it easier, we will be soldered to the CAN-bus in the mounting zone of the wiring connections, which is located to the left of the rest of the rest. In order to stretch the wire, we will have to remove the lover of the left rack windshield And consolidate a new wire in a place with other wires that pass there.

• In order to get to the wiring connections, you need to remove the cover of the left threshold and pull out the black connector from the mount (as shown in the photo);

• Two wires of the orange CAN-tires are going to this connector, which must be cleaned and connect with the wires that we stretched from a new mirror with FLA function;

3) Now that the wiring is diluted and connected, you can collect everything neatly back and secure the wires with plastic clamps, and the new mirror is installed on its rightful place. It also puts the old one, only snaps down clockwise.

Excellent! Now that the mechanical part of the installation is complete, you can connect Vasya diagnostic and produce final encoding the FLA function. To do this, we open Vasya Diagnostic and go to the selection of the control unit:

1) go to block 19. (Diagnostic interface of data tires) CAN-Gateway \u003d\u003e List of equipment \u003d\u003e block 20. (Long-Light Management Assistant) \u003d\u003e Put the checkbox \u003d\u003e Save (accepted encoding)
2) go to Block 20.(Long-Light Management Assistant) \u003d\u003e Long Coding \u003d\u003e Zeros there, and we need to register everything from the beginning:

• 0 byte (Middle Light) - We put 04 for LED headlights (for other headlights, select the corresponding other code);
• 1 byte (Far Light) - put 04 for LED headlights (for other headlights, select the corresponding other code);
• 2 bytes (root location) - leave 00, as in the left steering wheel;
• 3 bytes (determining the height of the camera position) - put EC for Passat B8 (for example, on Skoda Octavia. A7, will already be E5);
• Next, we leave zeros and get this encoding: 04 04 00 EC 00 00 00 00 00 00 00 (14 zeros).

• _Erweiterte_fernlichtsteuerung - _Basis, Fla
• _MenueSteuerung FernlichTassistent - _Available
• _MenueSteuerung Fernlichtassistent WerkseInstellung - _Available

Now when the encodings are finished, we need to go to the menu on the header \u003d\u003e settings \u003d\u003e Lighting \u003d\u003e Assistant of the Little Light Management \u003d\u003e We put a tick. And check the functionality of the function: we translate the lighting into the AUTO mode and once the left-beam turning lever is pressed "from yourself" - on dashboard There should be a long-beed light icon with beak. A.

Congratulations! You have successfully installed the FLA system on your car! \u003d) We wish you good luck in the conceived and remember that there is nothing impossible!

View other systems / assistants concern Volkswagen. can be in separate

Light Assist is automatic system Long-Light Management (Far Light Assistant). This auxiliary system increases the level of security and helps the driver when driving in the dark. The essence of its work is to automatically switch the long-mone. In more detail about the device and the features of the work we will tell in the article.

Assigning Light Assist.

The system is designed to improve illumination in the dark. This task is implemented by automatic switching of long beam. The driver moves with the inclited far as possible. If there is a danger of blinding other drivers, Auto Light Assist switches to the close or change the angle of the light beam.

How does Light Assist

The conditions of the complex will depend on the type installed heads. If the headlights are halogen, then there is automatic switching between the near and distant depending on the situation on the road. When xenon headlights automatically rotates the reflecting element in different planes in the headlamp by changing the direction of light. Such a system is called Dynamic Light Assistant.

The main components of the device are:

• control block;
• lighting mode switch in the cabin;
• black and white camcorder;
• the headlight module (reflecting element);
• light sensors;
• dynamic control sensors (wheel rotation frequency).

To activate the system, you must first include the Middle Light, then translate the switch to automatic mode.

Black and white camcorder and control unit are located in the rearview mirror. The camera analyzes the road situation in front of the car at a distance of up to 1,000 meters. It recognizes light sources, and then transmits graphical information to the control unit. This means that the source (counter car) is recognized before it is blind. The length of the high-light light beam usually does not exceed 300-400 meters. Far is automatically turned off when the counter-car in this area is hit.

Also information in the control unit comes from light sensors and wheel speed sensors. Thus, the following information enters the control unit:

• light level on the road;
• speed and trajectory of motion;
• the presence of the oncoming light and its power.

Depending on the road situation There is an automatic switching on or off of the overall light. System operation shows a control lamp on.

Required conditions for activation

Automatic switching of overall light will work under the following conditions:

• middle headlights are included;
• low light level;
• the car moves at a certain speed (from 50-60 km / h), this speed is perceived as a movement along the highway;
• there are no countercourse or other obstacles ahead;
• the car moves outside the settlements.

If countercourses are fixed, the distant light will automatically go out or the angle of inclination of the reflective headlight module will change.

The first such technology introduced volkswagen. (Dynamic Light Assist). Application camcorder I. different sensors Opened new features.

The leading competitors in this area are Valeo, Hella, All Automotive Lighting.

Similar technologies are named Adaptive Front Lighting System (AFS). Valeo presents the Beamatic system. The principle of all devices is similar, but may differ in additional functions, among which can be:

• movement around the city (operating at speeds up to 55-60 km / h);
• country road (speed 55-100 km / h, is characterized by asymmetric lighting);
• motorway movement (over 100 km / h);
• far Light (Light Assist, automatic switching);
• coverage of turns in motion (depending on the configuration, the module turns at an angle to 15 ° when the steering wheel is rotated);
• including lighting with bad weather conditions.

Advantages and disadvantages of Light Assist systems

Such technologies received recognition of drivers. Reviews show that the system works well and without failures. Even when overtaking on an unlited track of ahead of the car, the far lights headlights do not blind in the rearview mirror. At the same time, the far light remains to work. An example can be called Dynamic Light Assist from Volkswagen. Special disadvantages failed.

Similar technologies as Light Assist are perfectly coping with their task. Thanks to them Rugs modern cars It becomes more secure and comfortable.