Engine Order Canceller

In general, the noise generated by internal combustion and exhaust systems, including engines, is reduced by strengthening the materials of the car body and chassis, and improving their rigidity.

However, this method leads to increased vehicle weight and fuel consumption, which in turn increases carbon dioxide emissions. It also limits vehicle performance.

To address this issue, EOC uses an active noise-canceling algorithm to reduce engine noise and to improve fuel efficiency by reducing the material and system-load on the vehicle body. EOC generates noise in reverse phase with engine noise from engine speed information obtained from the car body, and cancels unwanted sound. In addition, a microphone for feedback mounted in the cabin can compensate for fine phase shifts.

By combining AKM's small DSP with Silentium's softwarehouse, the unmatched solutions improves fuel efficiency while reducing cabin noises and creating a comfortable cabin space.