BMW 5 Series: Functional principle
Depending on the speed, the system is guided by the lane edges or vehicles driving ahead.
The position of the lane edges and the vehicle driving ahead is determined with the help of five radar sensors and the KAFAS stereo camera.
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G30 Installation locations of radar sensors and KAFAS stereo camera
- Control unit for radar sensor, right (RSR)
- KAFAS stereo camera
- Blind Spot Detection (primary)
- Blind Spot Detection (secondary)
- Control unit for radar sensor, left (RSL)
- Active Cruise Control (ACC)
The system has two subfunctions: the Traffic Jam Assistant (second generation) and the Active Lane Keeping Assistant.
The Traffic Jam Assistant is available for speeds up to approximately 43 mph (70 km/h), the Active Lane Keeping Assistant from approximately 43 mph (70 km/h) to approximately 130 mph (210 km/h).
The table below shows an overview of the differences between the two subfunctions:
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If the Traffic Jam and Active Lane Keeping Assistants are activated, the Side Collision Avoidance is also interlinked.
Hands-off-Detection
To ensure the driver is alert and able to react, he is urged to always have both hands on the steering wheel when the Active Lane Keeping Assistant and Traffic Jam Assistant are activated (established in the German road traffic regulations). If the driver takes both hands off the steering wheel rim, control is stopped after a few seconds during active control and the driver is requested to take over steering.
Additional information about Hands-off-Detection may be found in the "G12 Driver Assistance Systems" reference manual.
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Functional prerequisites
The following prerequisites must be met in order for the Active Lane Keeping
Assistant and Traffic
Jam Assistant to be used:
Speed must be below 130 mph (210 km/h).
Above 43 mph (70 km/h
Steering interventions
If the current course of the vehicle deviates too much from the target
trajectory (path curve), a steering
correction is initiated.
The steering intervention is a corrective measure. This means the
Operation
The system is switched on via the Traffic Jam Assistant button on the
multifunction steering wheel
(MFL).
G30 buttons for ACC Stop&Go with Active Driving Assistant Plus optional
equipment
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Data entry and data transfer into
the vehicle
General information
Depending on the vehicle equipment, comfort
and individual settings can be stored in the vehicle
and modified or reset at any time.
For example, this includes:
Settings for the seat and steering wheel positions.
Suspension and climate control settings.
If necessary, data can
Cruise Control
Introduction
Two cruise control functions can be used in the G30. The cruise control with
braking function,
Dynamic Cruise Control (DCC), is part of the standard equipment.
ACC Stop&Go can be obtained if the customer opts for the Active Driving
Assistant Plus, optional
equipment (OE
