US 12,337,639 B2
Suspension mount structure of electric vehicle and perfromance evaluating method for the same
Chan-Jung Kim, Busan (KR)
Assigned to PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION, Busan (KR)
Filed by PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION, Busan (KR)
Filed on Jul. 20, 2022, as Appl. No. 17/868,965.
Claims priority of application No. 10-2021-0112215 (KR), filed on Aug. 25, 2021.
Prior Publication US 2023/0066515 A1, Mar. 2, 2023
Int. Cl. G01M 17/04 (2006.01); B60G 13/16 (2006.01)
CPC B60G 13/16 (2013.01) [B60G 2202/25 (2013.01); B60G 2300/50 (2013.01); B60G 2400/252 (2013.01); B60G 2400/91 (2013.01); G01M 17/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A suspension mount structure of an electrified vehicle, the suspension mount structure comprising:
an upper structure of the electrified vehicle; and
a suspension on which the upper structure is mounted, wherein vibration occurring at a location below the suspension is transmitted to the suspension via an axle and then is transmitted to the upper structure via the suspension,
wherein the suspension includes a spring and a damper, wherein the spring and the damper are connected in series to each other and are connected in series to the upper structure,
wherein vibration transmissibility of the suspension is determined based on a following Equation 1:

OG Complex Work Unit Math
where M denotes an equivalent mass of the upper structure, C denotes a damping coefficient set for the damper, K denotes a stiffness coefficient of the spring, ω denotes an angular frequency (=2πf), and j denotes a complex number.