Engine Speed–Independent Acoustic Signature for Vehicles

Acoustic Information Fusion for Ground Vehicles Classification

Many acoustic factors can contribute to the classification accuracy of ground vehicles. Classification based on a single feature set may lose some useful information. To obtain more complete knowledge regarding vehicles’ acoustic characteristics, we propose a fusion approach to combine two sets of features, in which various aspects of acoustic signatures are emphasized individually. The first s...

34 4 Are Electric Vehicles Safer than Combustion Engine Vehicles ?

Designing a buffer-equipped hydraulic engine mount for mid-priced vehicles

A combined hydraulic engine mount and buffer is proposed in this study for use in the mid-priced vehicle. In some vehicle design projects, an engine is selected to use in a new car design. To achieve the desired vibration conditions, the mount can be redesigned with exorbitant costs and long-term research. The idea of using a buffer in the combination of the conventional engine mount is to sugg...

The acoustic signature for intelligibility test words.

As part of a research program that aims to develop an explicit acoustic basis for a single-word intelligibility test, an initial attempt to characterize the formant trajectories and segment durations of seven test words produced by 30 normal speakers is described. These characterizations are referred to as "acoustic signatures." The data indicate that: (1) formant trajectories show two sex effe...

Signature submanifolds for some equivalence problems

This article concerned on the study of signature submanifolds for curves under Lie group actions SE(2), SA(2) and for surfaces under SE(3). Signature submanifold is a regular submanifold which its coordinate components are differential invariants of an associated manifold under Lie group action, and therefore signature submanifold is a key for solving equivalence problems.