A FxLMS controller based on experimental secondary path identification for active control engine mount 2019-01-0778
Active engine mounts (AEMs) notably contribute to ensuring superior performance of vehicle’s noise, vibration, and harshness. This paper incorporates a filtered-x-least-mean-squares (FxLMS) controller into the active control engine mount system to attenuate the transmitted force to the body. To obtain the secondary path information of the active engine mount, the method of experiment is employed. After that, a least-mean-squares (LMS) algorithm is used to model the secondary path into tap weights. Finally, a hardware-in-the-loop testing system is built to verify the performance of the active engine mount. It can be found from the test results that the vibration eliminates a lot after control, which represents the active engine mount and the controller works well in vibration attenuation.