Access Systems
TRW’s Body Control Systems (BCS) Access Systems product line is committed to delivering quality products beyond customer expectations. The BCS global footprint, best practices and lessons learned from around the world are incorporated into all Access Systems product design standards. A Six Sigma-driven continuous improvement philosophy - from product design to post launch – helps the Company deliver high-quality, cost-competitive Access Systems solutions to OEMs worldwide.
BCS Home
TRW's global Body Control Systems (BCS) business is headquartered jointly in Livonia, Michigan, and Radolfzell, Germany, and serves all major original equipment vehicle manufacturers (and their suppliers) worldwide. With more than 4,000 employees, BCS operates technical and manufacturing facilities in 12 countries. BCS products are categorized by six product lines:
Pre-Crash
In addition to active safety systems for collision avoidance/collision mitigation, TRW is working on passive safety pre-crash systems to increase occupant safety. To ensure utmost safety benefit on the one hand and to allow an early introduction in series production on the other, the project is divided in two basic methods:
GPS-Based Safety
As part of the integrative project related to GPS-based safety, TRW is working on an integration of advanced belt systems like the Active Control Retractor 2 and the Active Buckle Lifter, featuring global navigation satellite systems and enhanced road maps. While current ACR2 and ABL functions for dynamic support make use of vehicle dynamics data and, therefore, react when the vehicle already is in a curve, the integration of GPS and map information allows a foresighted and curve-predictive control of these functions.
Collision Mitigation Braking (CMB)
TRW's Collision Mitigation Braking (CMB) technology detects moving and stationary objects, offering brake assist support across a full range of speeds.
In case of an imminent collision with an object in front, automatic braking support is triggered. CMB is applied at close distance (<5m) where a 20kph speed reduction by braking - with limited deceleration - can be achieved. Depending on relative speed, CMB will help to mitigate impact or avoid collision.
Retainers
Valve Retainer Caps
TRW precision retainer caps transfer the valve spring loads to the valve via the valve cotters.
Tappets & Rocker Arms
Bucket Tappets
The mechanical bucket tappets are positioned between the camshaft and the valves, and are directly actuated by the camshaft. The tappet transmits the movement of the cam to the end of the valve stem, thereby activating the valve.
Rocker Arm Assemblies
Cotters
Valve Cotters
The connection between the valve retainer caps and the valve is secured by valve cotters. Cotters are available in clamping and non-clamping designs. With the non-clamping variant, the valve is allowed to rotate freely.
