Safely to Your DestinationDynamically on the Road

With the acquisition of TRW Automotive, ZF now boasts the most comprehensive portfolio of active and passive safety technologies in the supplier industry. Continuous innovation helps to prevent accidents and protect the vehicle occupants and other road users - both today and in the future.

ZF has specific expertise in the development of intelligent safety systems – because more intelligent cars mean safer cars. This extensive experience makes ZF a leading systems integrator – a quality that is decisive for future developments in the areas of enhanced vehicle control, vehicle communication with other vehicles and with the infrastructure, as well as assisting with the protection of passengers and pedestrians. Thanks to highly developed electronics architecture and algorithms, ZF is able to offer integrated solutions that are much more than the mere sum of their parts.

  • Data Fusion Systems combine camera and radar for high level safety systems and partially to fully automated functions.

Steering Impulses from the Rear Active Kinematics Control (AKC) for Passenger Cars

Vehicle with Aktive Kinematics Control (AKC) from ZF

If the rear wheels actively assist the front steering angle, a passenger car enjoys enhanced agility, stability, and comfort when changing direction. The steering movements of the rear trigger electronically controlled active track actuators – either one central actuator in the middle of the rear axle or two smaller actuators in the suspension of each rear wheel, depending on the specific vehicle requirement.

This paves the way for new chassis technology options across virtually all passenger car segments and for disparate models – current models showcasing this technology include various Porsche sports cars, for instance. At speeds below approximately 60 km/h, the AKC system turns the rear wheels in the opposite direction to the front steering, which, in turn, enhances agility and maneuverability. From around 60 km/h, the system steers the rear wheels in the same direction as the front wheels, thus improving directional stability and driving dynamics.

All-Round View Thanks to Data Fusion

ZF TRW Test Vehicle with Automatic Emergency Brake (AEB)

The ongoing evolution from partial to fully automated driving calls for the installation of more environment sensors in the vehicle to help ensure driving safety in virtually all traffic situations and speeds. These sensors are indispensable for a 360° all-round view.

Today, a host of sensors monitor the area around vehicles, and are used to control driver assist systems such as Automatic Emergency Braking (AEB), which can automatically brake the vehicle if the driver does not respond in a critical situation. To this end, the system combines the information from the forward-looking radar and camera sensors. The two sensor technologies are remarkably complementary: Radar sensors measure distances and relative speeds with high precision, while camera sensors are useful for the lateral detection range and precise object recognition.

The data fusion system can be combined with additional camera and radar sensors as well as the advanced Safety Domain ECU from ZF TRW in order to realize partially automated driving functions that can be used as a basis for future highly automated vehicle systems.

FRONT-SEAT MOUNTED REAR AIRBAG CONCEPT

ZF TRW has been using a wide array of safety technologies to design systems specific to rear seating positions. Features unique to the rear seat compartment include a wider range of occupant ages, sizes and positions of the front seats. As with frontal safety systems, ZF TRW has developed technologies combining airbags and seat belts to help protect rear seat occupants in the event of a crash.

This advanced rear airbag design (also called SCARAB) is placed on the rear-facing side of the front seats to help protect rear seat occupants. Front seats that adjust in a longitudinal direction can lead to varying distances between the back of the seat and rear occupants. However, the unique shape of ZF TRW's advanced rear airbag concept adjusts to the varying distances between the rear seat occupant and the front seat. This concept provides coverage when the front seat is in a very forward position, and helps to avoid high loading of the occupant when the front seat is positioned further back into the rear seat space.

Active Seat Belt Systems

ZF TRW’s Active Control Retractor and the Active Buckle Lifter are advanced seat belt designs that work in combination with the vehicle’s active safety systems. These seat belt technologies can help vehicle occupants locate and fasten the buckle; helps reduce seat belt slack in dynamic driving situations; and help decrease the possibility of occupants being out-of-position.

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