Kafas F01, Training Manual

Page 1: ...t 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 22 Operation and Indication 24 Detection of Light in the Field of View of the Video Camera 26 Evaluation of Image Data 28 Control of the High beam Headlights 29 System limitations 29 Service Informa...

Page 2: ...completion 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 F01 F02 Identify the components of the KAFAS system 2 F01 KAFAS ...

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 the same camera and the one control unit the KAFAS control unit KAFAS is the Camera Assisted Driver Assistance System KAFAS is used for the following combined functions Lane departure warning High b...

Page 4: ...g 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 KAFAS control unit with the lane departure warning system 4 F01 KAFAS Options Technical specification KAFAS 1 camera 1 control unit 2 functions Lane departure warning X High beam assistant X ...

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: ...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 assistant function in position A or position II 14 Central Information Display CID 6 High beam assistant on off button on the turn signal stalk on the steering column 15 Junction box electronics 7 Steering column switch clus...

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 assistant function in position A or position II 14 Central Information Display CID 6 High beam assistant on off button on the turn signal stalk on the steering column 15 Junction box electronics 7 Steering...

Page 9: ...amera 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 assistance control panel with lane departure warning 9 F01 KAFAS ...

Page 10: ...undamental 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 warning video camera with LVDS connection to KAFAS control unit Index Explanation Index Explanation 1 KAFAS control unit Driver s footwell 2 Central gateway module ZGM 10 F01 KAFAS ...

Page 11: ...rning 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 camera with LVDS connection to KAFAS control unit 11 F01 KAFAS ...

Page 12: ...ard 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 designed to assist the driver on highways major roads and well main tained country roads Warnings are given therefore only at speeds of over 44 mph The driver activates the system using the lane dep...

Page 13: ...ay 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 represented by additional arrow symbols in the display Lane departure warning switched on Lane departure warning ready ...

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 beam stalk on the steering column intention to change lane Index Explanation Index Explanation 1 Steering wheel electronics 2 Vibration actuator for the lane departure warning Index Explanation 1 Turn...

Page 15: ...nalysis 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 apply to the current lane in which the vehicle is driving First the control unit calculates the vehicle s position relative to the lanes detected in the camera images and then uses this position as ba...

Page 16: ...he 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...

Page 17: ...onds 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 are also combined Message indicating the availability of the lane departure warning above 44mph Displays of the lane departure warning with ACC ...

Page 18: ...ay 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 controller Lane departure warning display in the instrument cluster of the F01 F02 Display in the head up display of the F01 F02 Index Explanation 1 Lane departure warning ready 2 Speed Limit Informatio...

Page 19: ...e 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 steering angle and road speed the system calculates the time t remaining before the vehicle would cross the lane marking The warning is output in time before the vehicle crosses the marking Lane departure...

Page 20: ...ved 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 lights are switched on The warning ends when The driver steers back into the lane A lane change is completed The vehicle drives along the line for longer than 2 5 seconds The turn signal is operated...

Page 21: ...ol 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 similar systems Control of the lane departure warning vibration actuator in the F01 F02 Index Explanation Index Explanation KAFAS KAFAS control unit SZL Steering column switch cluster ZGM Central gateway ...

Page 22: ...FLA 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 switches on the high beam headlights automatically and thereby relieves the customer of having to switch the high beam headlights on manually High beams can still be switched on and off manually as ...

Page 23: ...eo 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 control unit with connection to vehicle electrical system on PTCAN 2 Video camera for lane departure warning and high beam assistant The image data sent from the video camera to the KAFAS control uni...

Page 24: ...e 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 tion II there is an additional prerequisite in the Automatic position whereby the automatic driving lights controller must have already switched on the lights Light switch in position A Light switch in...

Page 25: ...by 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 cluster Turn signal high beam stalk on the steering column in the F01 F02 Display when high beam assistant activated in the F01 F02 Display when high beam headlights ON F01 F02 Index Explanation 1 T...

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 When active these special video cameras capture dots of light and in the process are able to distinguish between various parameters e g light color and light intensity Index Explanation Index Explanati...

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

Page 28: ...A 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 The KAFAS control unit sends a switch off recommendation to the footwell module These conditions could be Daylight Twilight Road lighting Illuminated places The system is designed to switch off the hi...

Page 29: ...ionality 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 pedestrians Individual driving situations e g sharp bends steep hills traffic coming at right angles from left or right Differentiation between different light sources reflective traffic signs etc No ...

Page 30: ...irst 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 sensitivity Mode A low sensitivity mode has been implemented in order to comply with the US statutory requirements In this mode the sensors are less sensitive To activate this mode the driver must pr...

Page 31: ...LA 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 high beam High beam assistant defective High beam assistant defective Have the system checked by the nearest BMW Service Sensitivity adjusted High beam assistant sensitivity adjusted for automatic high...