BMW Suspensions

BMW Suspension

1Multi-link Rear Suspension

The Multi-link rear suspension is constructed from light weight steal 2

Aluminum integrated rear axle.Lateral springs reduce body roll and enhance noise reduction3Suspension Video

Video on Suspension4Independent Multilink

Double Wishbone Front Suspension

Most sport cars and racing cars use this type of suspension. The front suspension is made from Aluminum which reduces unsprung weight. 6High Performance Front Suspension Systems Double wishbone front suspension systemMaintains precise front wheel position for improved directional stability and steering control.Upper and lower control arms are wishbone shaped.

High Performance Front Suspension SystemsDouble wishbone front suspension system compliance pivot action:Upper and lower control arms are manufactured from lightweight, high-strength aluminum.Front ends of upper and lower control arms are attached through a bushing and compliance pivot to the chassis.

Near-Perfect 50/50 balance

With near perfect weight balance over the front and rear axels allows for more agility and control.9xDrive

xDrive video10xDrive

xDrive is the permanent all-wheel drive system from BMW: under normal circumstances, it distributes driver power between the front and rear axles in a 40:60 ratio, and changes this figure variably when the road surface or overall driving conditions change.xDrive can direct up to 100% of drive forces to one axle11Active Cruise Control

It maintains the desired speed when possible, while also keeping a pre-defined distance to any vehicles in the lane ahead using Radar.

12Electronic Damper Control

Electronic Damper Control (EDC) automatically adjusts the shock absorber settings to meet changes in vehicle speed, load, or road and driving conditions

13Adaptive Drive

Adaptive Drive counteracts the forces that cause body roll. Adaptive Drive calculates lateral and longitudinal acceleration, and speed and steering angle

14Dynamic Drive

Dynamic Drive uses active stabilisers on the front and rear axles to counteract the vehicle's tendency to roll in a corner. 15Active Steering

Active Steering increases the size of the steering angleAn electric motor in the joint adjusts the front wheels' steering angle in proportion to the Sedan's current speed. Active Steering system is the planetary gear set integrated into the steering column. An electric motor in the joint adjusts the front wheels' steering angle in proportion to the Sedan's current speed.

16Automatic Differential Brake(ADB-X)

Automatic Differential Brake (ADB-X).The Automatic Differential Brake (ADB-X) is part DSC17Video

Dynamic Stability Control (DSC) Video. Safety 18Dynamic Stability ControlDCS

Maximizes traction of all wheels when setting off or accelerating. It is able to detect the first signs of oversteering or understeering

19Dynamic Stability ControlVideo

Dynamic Stability Control

20Automatic Stability Control (ASC).

Automatic Stability Control (ASC) is an element of the Dynamic Stability Control (DSC) system. It prevents loss of traction on the drive wheels 21Distribution of Power

22Electric Power Steering

The advantage is the engine is only in use when power steering is needed. Helps reduce fuel consumption.

23ReferencesThe Automotive Chassis Engineering Principles, J. Reimpell, H. Stoll, J. W. Betzler, ISBN 978-0-7680-0657-5

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BMW USA

Automotive Steering and Suspension 5th Edition Don KnowlesDelmar