Active Control Retractor
The Active Control Retractor (ACR) is activated through data from active safety systems, such as the Electronic Stability Control or Brake Assist systems. It can also be triggered by data from other environmental sensors, such as radar that provides the relative speed and distance to the vehicles ahead.
ACR offers reversible pretensioning, and a parametric trigger algorithm and functional software.
ACR 2
TRW is achieving a number of targets with its next-generation ACR, including a reduction in weight, packaging and cost, while maintaining the same high quality and performance. Technologies used to help achieve this goal are the addition of a brushmotor, instead of a brushless motor, a redesigned clutch and a toothed belt with spurgear transmission.
Like the original ACR, the new version has reversible pretensioning, a parametric trigger algorithm and functional software. ACR 2 also has a pyrotechnic device within it. The new restraint system offers more comfort features and dynamic support and features an improved algorithm.
This system is also featured in the Integrated Systems section.