TRW puts new lane-keeping technology into production

  • 06-Dec-2013 06:04 EST

With TRW's latest lane-keeping technology, steering angle is controlled more closely as the driver is "coached" to steer the vehicle away from the border back to the center of the lane.

Two unnamed vehicle platforms for the European market are the first-time applications of TRW's latest lane keeping assist (LKA) technology, the company announced Dec. 3. What distinguishes the new technology from the former one is introduction of closed-loop control. LKA integrates data from a video camera sensor with electrically powered steering (EPS) to apply a short counter-steer torque to help assist the driver in preventing the vehicle from unintentionally leaving the lane. In conventional LKA systems, the technology is only active when the vehicle is close to the lane borders, at which point counter-steer torque is applied. With the new closed-loop version, the steering angle is controlled more closely as the driver is "coached" to steer the vehicle away from the border back to the center of the lane. As with all LKA systems, the induced torque generated by the EPS system can be easily over-ridden by the driver at any time.  "This technology is the first step towards a full lane-centering system where the EPS system will help keep the driver in the center of the lane at all times," said Andy Whydell, Product Planning, TRW Electronics. "Such technologies are starting to form the basis for semi-automated driving functionality."

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