Non-glare high-beam assistant: Notes

The exterior lights allows the owner to identify the vehicle and signal driving maneuvers during both the day and night. The vehicle lights illuminate the vehicle driving area.

In order to meet the requirements derived from the different traffic situations and road surface types, the use of headlights will occur with variable light distribution in the future. The goal is an improved illumination of the roadway with greater headlight beam throw even with oncoming traffic or traffic ahead.

The non-glare high-beam assistant system can remain switched on throughout the entire night drive. Oncoming cars or traffic ahead will be detected on time and "suppressed" from the light beam. The more intensive use of the high-beam headlight at night results in an improved recognition of dangerous situations. The exterior lights thus contribute to active safety in traffic. The non-glare high-beam assistant is integrated in the optional equipment Adaptive Headlight SA524. This results in a forced connection with the following optional equipment:

• Xenon headlight SA522 or LED headlight SA552
• Rain sensor SA521
• Fog lights SA520
• high-beam assistant SA5AC

The non-glare high-beam assistant is only offered in the European version. The non-glare high-beam assistant is not available in the US version and Japanese version.

Depending on the model series, version, model year and vehicle equipment, different systems may be used for the anti-dazzle high beam assist function:

• Example F06, F12, F13:
  • Vehicles with xenon headlights:

    The left-hand and right-hand headlight driver modules are connected to the LIN bus.

  • Vehicles with LED headlights:

    The left-hand and right-hand main LED headlight modules are connected to the LIN bus.

    The left-hand and right-hand headlight driver modules are connected to the LIN bus.

• Example F01, F02 and F10, F11, F18 and F15, F16:
  • Vehicles with xenon headlights:

    The left-hand headlight driver module (STML) and right-hand driver module (STMR) are connected to the K-CAN3 and to the LIN bus.

  • Vehicles with LED headlights:

    The left-hand LED main headlight module (LHML) and right-hand LED main headlight module (LHMR) are connected to the K-CAN3.

    The left-hand headlight driver module (STML) and right-hand driver module (STMR) are connected to the K-CAN3 and to the LIN bus.

• Example F32, F33, F36, F8x:
  • Vehicles with xenon headlights:

    The left-hand headlight driver module (STML) and right-hand driver module (STMR) are connected to the K-CAN2 and to the LIN bus.

  • Vehicles with LED headlights:

    The left-hand LED main headlight module (LHML) and right-hand LED main headlight module (LHMR) are connected to the K-CAN2.

    The left-hand headlight driver module (STML) and right-hand driver module (STMR) are connected to the K-CAN2 and to the LIN bus.

The graphic below shows the components that are involved in the control of the non-glare high-beam assistant using the example F10.

Fig 1: Identifying Steering Column Switch Cluster, ACSM And CAS Related Components

Courtesy of BMW OF NORTH AMERICA, INC.