BMW Active Steering: Enhancing Control and Handling

The video discusses advancements in power-assisted steering systems, focusing on BMW's active steering technology. This system uses a combination of conventional steering gear, a planetary gear, and an electric motor to adjust the steering ratio based on vehicle speed. It enhances handling and stability by providing a more direct steering ratio at low speeds and a less direct ratio at high speeds. The system integrates with BMW's Dynamic Stability Control to maintain vehicle control during sudden maneuvers or adverse conditions. Despite its advanced features, the mechanical linkage ensures drivers receive direct feedback.

What is the primary innovation of BMW's active steering system?

• It uses only hydraulic systems.

• It requires more driver input at low speeds.

• It varies the steering ratio based on car speed.

• It eliminates the mechanical link between the steering wheel and axle.

How does the active steering system ensure safety in case of a failure?

• The system shuts down completely.

• The electric motor locks, maintaining the mechanical link.

• The mechanical link is disengaged.

• The electric motor takes full control.

What is a key benefit of the variable steering ratio at low speeds?

• Increased steering effort.

• Improved handling and less steering effort.

• More turns of the steering wheel required.

• Reduced driving pleasure.

How does active steering respond to sudden changes in direction?

• It reduces brake pressure.

• It increases engine power.

• It performs a swift counter-steer reaction.

• It ignores the changes.

What role does BMW's Dynamic Stability Control play in active steering?

• It disables the steering motor.

• It regulates engine power and applies brakes individually.

• It adjusts the steering wheel's position.

• It monitors the driver's heart rate.