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F01 KAFAS

Roadway Marking

The roadway markings in the image may differ greatly depending on the country, type of

road or prevailing environmental conditions. The system is capable of recognizing a wide

range of roadway markings and types of marking.
An analysable lane marking is subject to unequivocal recognition by the video camera

and control unit first. The lane traveled must have an average width of at least 2.5m.

Physical Limitations of the Optical System

The lane departure warning functions under a wide range of different environmental con-

ditions.
Due to the physical limitations of the system, system availability may be affected by

specific road and environmental conditions, such as snow, fog, rain, or glare and dazzle.

Display and Control Concept

The lane departure warning can be switched on as of terminal 15 ON.
When the ignition is switched on, the lane departure warning system always reverts to the

state that was active when the vehicle was last switched off.
Provided lanes can be detected, the lane departure warning is “primed” (ready) above a

speed of 40 mph.

Lane departure warning displays

System Active

System Ready

Summary of Contents for F02

Page 1: ...16 Lane departure warning displays 16 Displays of the lane departure warning Active Cruise Control with Stop Go 18 Warning 19 Signal path for controlling the vibration actuator 21 High beam Assistant...

Page 2: ...ompletion of this module you will be able to Describe the systems that are part of the KAFAS system Understand the Headlight Assistant FLA on the F01 F02 Understand the Lane Departure warning on the F...

Page 3: ...the shared use of components and signals in some areas Depending on the combination of the available options installed the functions in the F01 F02 are implemented as camera based systems both sharing...

Page 4: ...High beam Assistant Lane Departure Warning Active Blind Spot Detection The vehicle comes fitted with the KAFAS control unit and camera The high beam assis tant option shares the KAFAS camera and the...

Page 5: ...Lane Departure Warning and High beam Assistant The overview below illustrates the components used in combining these systems System Overview 5 F01 KAFAS System overview of KAFAS components...

Page 6: ...n off button 12 Controller 4 Footwell module FRM High beam headlights on off 13 Car Information Computer CIC navigation system navigation system data 5 Light switch High beam assistant function in pos...

Page 7: ...Circuit diagram KAFAS with lane departure warning and high beam assistant 7 F01 KAFAS...

Page 8: ...Departure Warning on off button 12 Controller 4 Footwell module FRM High beam headlights on off 13 Car Information Computer CIC navigation system navigation system data 5 Light switch High beam assist...

Page 9: ...mera and the corresponding button in the BEFAS control panel indicate that the vehicle is equipped with the lane departure warning System Components Video camera for lane departure warning Driver assi...

Page 10: ...ndamental to the lane departure warning s range of functions KAFAS control unit and video camera in the F01 F02 Index Explanation Index Explanation 1 KAFAS control unit with PT CAN 2 Lane departure wa...

Page 11: ...ning the high beam assistant function shares the same video camera and the same KAFAS control unit Index Explanation Index Explanation 1 KAFAS control unit with PT CAN 2 Lane departure warning video c...

Page 12: ...rd facing video camera The system is therefore intended to assist the driver in case of a lapse of attention Nevertheless the driver continues to bear full responsibility for the vehicle The system is...

Page 13: ...y by the following symbol The activated system is ready as soon as lane markings are detected by the control unit and the vehicle is travelling faster than 44 mph The ready state of the system is repr...

Page 14: ...the activation of the turn signal In this case there is no warning when the vehicle is driven over the lane marking Warning the driver by vibrating the steering wheel in the F01 F02 Turn signal high b...

Page 15: ...alysis Using image processing technology the control unit scans the images recorded by the video camera for lane and roadway markings The software in the control unit also checks which lane markings a...

Page 16: ...e lane departure warning functions under a wide range of different environmental con ditions Due to the physical limitations of the system system availability may be affected by specific road and envi...

Page 17: ...nds indicating availability above a speed of 40 mph In vehicles equipped with a combination of the lane departure warning and Active Cruise Control with Stop Go the displays of each of these systems a...

Page 18: ...y if the vehicle is equipped with this option The driver can activate or deactivate the display for the lane departure warning in the head up display from the Central Information Display using the con...

Page 19: ...driver by causing the steering wheel to vibrate Based on the detection of one or two lanes the system first calculates the position of the vehicle in relation to these lanes Using the vehicle s steer...

Page 20: ...ed an input signal indicating the activation of the turn signals because this signal announces that the driver is about to change lane intentionally Similarly no warning is given if the hazard warning...

Page 21: ...l of the vibration actuator so that in vehicles equipped with both the optional lane change warning and the lane departure warning the driver is able to distinguish between the warnings of these simil...

Page 22: ...LA assists the customer in the use of the high beam head lights Depending on the traffic situation the prevailing ambient light conditions and which lights on the vehicle have been switched on the FLA...

Page 23: ...o camera and the same KAFAS control unit High beam assistant with the video camera of the lane departure warning and the KAFAS con trol unit in the F01 F02 Index Explanation Index Explanation 1 KAFAS...

Page 24: ...high beam assistant has its own activation button in the turn signal high beam stalk on the steering column While the high beam assistant can be activated at any time with the light switch in posi ti...

Page 25: ...y the footwell module at the request activation recom mendation of the KAFAS control unit The switching on and off of the high beam headlights is indicated by the conventional symbol in the instrument...

Page 26: ...the video camera is approximately 1 000m 1093yd The video camera has a horizontal viewing angle of approximately 15 to the left and right and a vertical viewing angle of approximately 5 up and down Wh...

Page 27: ...27 F01 KAFAS Horizontal vertical field of view of the video camera in the F01 F02...

Page 28: ...is switched off at speeds higher than 31mph it may be switched on depending on all other parameters If the vehicle is in an environment with adequate light the high beam headlights do not switch on T...

Page 29: ...onality These limitations may be reached in the following situations Extremely bad weather conditions e g fog or heavy snowfall Poorly illuminated road users e g riders on small motorcycles cyclists p...

Page 30: ...rst time in the E60 E61 E63 LCI E64 LCI BMW models from 2007 Model Year The high beam assistant is not available separately for the F01 F02 and is part of the ZDA Driver Assistance Package option Low...

Page 31: ...A Check Control message Condition Information in Central Information Display High beam assistant not active High beam assistant not active Sensor field covered Manual activation and deactivation of hi...

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