Abstract: A system for calculating an internal load of a component includes an acceleration module, a skew matrix module, a center of gravity calculation module, a mass/inertia module, and an internal load module. The acceleration module may obtain a plurality of acceleration measurements associated with a component, where each acceleration measurement is associated with a response point relative to a center of gravity of the component. The skew matrix module may determine a skew matrix based on the response points. The center of gravity calculation module may calculate a center of gravity response for the component based on the plurality of acceleration measurements and the skew matrix. The mass/inertia module may determine a mass/inertia matrix based on measured mass and inertia values associated with the component. The internal load module may calculate an internal load of the component based on the calculated center of gravity response and the mass/inertia matrix.

Abstract: A system for calculating an internal load of a component includes an acceleration module, a skew matrix module, a center of gravity calculation module, a mass/inertia module, and an internal load module. The acceleration module may obtain a plurality of acceleration measurements associated with a component, where each acceleration measurement is associated with a response point relative to a center of gravity of the component. The skew matrix module may determine a skew matrix based on the response points. The center of gravity calculation module may calculate a center of gravity response for the component based on the plurality of acceleration measurements and the skew matrix. The mass/inertia module may determine a mass/inertia matrix based on measured mass and inertia values associated with the component. The internal load module may calculate an internal load of the component based on the calculated center of gravity response and the mass/inertia matrix.

Abstract: An electric vehicle pedestrian warning system includes an encapsulating container disposed in a location of an electric vehicle (EV) that is exterior to a cabin of the EV. The warning system also includes a speaker affixed to an interior portion of the container, an amplifier coupled to the speaker, a computer processor communicatively coupled to the amplifier, and logic executable by the computer processor. The logic is configured to transmit a sound file to the speaker through the amplifier over a vehicle network upon activation of the EV. The sound file includes a pedestrian warning sound. A first portion of the pedestrian warning sound is output by the speaker and amplified using acoustical properties of the encapsulating container. The first portion of the pedestrian warning sound is amplified in a low frequency range capable of being cancelled by an active noise cancellation system that is located in the interior cabin.

Abstract: An electric vehicle pedestrian warning system includes an encapsulating container disposed in a location of an electric vehicle (EV) that is exterior to a cabin of the EV. The warning system also includes a speaker affixed to an interior portion of the container, an amplifier coupled to the speaker, a computer processor communicatively coupled to the amplifier, and logic executable by the computer processor. The logic is configured to transmit a sound file to the speaker through the amplifier over a vehicle network upon activation of the EV. The sound file includes a pedestrian warning sound. A first portion of the pedestrian warning sound is output by the speaker and amplified using acoustical properties of the encapsulating container. The first portion of the pedestrian warning sound is amplified in a low frequency range capable of being cancelled by an active noise cancellation system that is located in the interior cabin.