Component PDF: 

OSS_ACR2_eng09.pdf

TRW is achieving a number of goals with its next-generation ACR, including a reduction in weight, packaging and cost, while maintaining high quality and performance. The ACR2 features a compact brush-motor, instead of a brushless motor, and a redesigned clutch and a toothed belt with spur gear transmission.

Like the original ACR, the new version has reversible pretensioning and a parametric trigger algorithm with actuation software. ACR2 also has a pyrotechnic device within it. The new restraint system offers more comfort features and dynamic support; it also features an improved algorithm.

	Figure 1 TRW’s ACR unit takes the slack off the seatbelt moving the passenger into a safer crash position.
	Figure 2 During the collision or rollover, the ACR unit remains activated, keeping the passenger in a safe position.