Lotus-Harman to Develop Noise Management Solutions

Lotus Engineering, the consultancy division of Lotus Cars and Harman Becker Automotive Systems have signed an agreement for the development of new noise management solutions based on Lotus’ patented Active Noise Control technologies.

“We are delighted by this agreement with Harman International, which will allow motorists to benefit from the greater levels of refinement and safety in future vehicles which these Lotus technologies enable,” Mike Kimberley, Group Lotus CEO said in a release.

The Active Noise Control (ANC) technologies, comprised of Road Noise Cancellation, Engine Order Cancellation, and External and Internal Electronic Sound Synthesis, are Lotus' solution to cabin noise reduction, pedestrian safety and engine noise.

Both the Road Noise Cancellation and Engine Order Cancellation systems are used to reduce overall noise levels and specific audible frequencies which may be unpleasant in the cabin space. Electronic systems determine the signal needed to provide cancellation which is then seamlessly generated through the in-car entertainment system.

The External Electronic Sound Synthesis system is especially important for electric and hybrid vehicles, which can be difficult to hear at lower speeds due to their drive mechanism. A synthesized sound, related to the car's speed, is projected from speakers at the front and rear of the vehicle, making pedestrians aware that the vehicle is in motion.

On the other hand, the Internal Internal Electronic Sound Synthesis allows sound contouring in the cabin, enhancing the driving experience by creating engine speed and throttle sounds audible through the in-car entertainment system.

“The utilisation of the Lotus suite of ANC technologies within our extensive product portfolio reinforces our commitment to support the increasing market demand for environmentally conscientious technologies,” Klaus Blickle, Harman International Automotive Division said