US 11,867,587 B2
System and method for vibration inspection of vehicle
Hyuk Ko, Incheon (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed on Oct. 13, 2020, as Appl. No. 17/069,051.
Claims priority of application No. 10-2020-0036568 (KR), filed on Mar. 26, 2020.
Prior Publication US 2021/0302271 A1, Sep. 30, 2021
Int. Cl. B25J 13/06 (2006.01); G01M 17/007 (2006.01); G01P 15/18 (2013.01); G07C 5/08 (2006.01); B62D 65/00 (2006.01); B25J 13/08 (2006.01)
CPC G01M 17/0078 (2013.01) [B25J 13/06 (2013.01); B25J 13/087 (2013.01); B62D 65/005 (2013.01); G01P 15/18 (2013.01); G07C 5/0825 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for vibration inspection of a vehicle for inspecting a quality of the vehicle assembled in a vehicle factory's in-line, the system comprising:
an inspection table for guiding and fixing the vehicle to a predetermined inspection position;
a sensor detachable robot configured for attaching or detaching at least a vibration sensor to at least a part of the vehicle;
a vibrating robot configured of generating vibration for the vibration inspection of the vehicle; and
an inspection server that is configured to analyze a vibration signal received from the at least a vibration sensor during the vibration inspection of the vehicle, and to determine the vehicle to be in inspection pass when the vibration signal matches a normal signal set according to a natural vibration frequency characteristic of each part of the vehicle, and to determine the vehicle to be in inspection fail when the vibration signal does not match the normal signal,
wherein the inspection server includes:
an external interface unit of receiving the vibration signal for each predetermined communication channel connected to the at least a vibration sensor, including wired and wireless communication modules;
a vehicle recognition unit of determining whether the vehicle is entered and a type and a specification of the entered vehicle's ID using a barcode or an On-board diagnostics (ODD)-ID received from a vehicle recognizer of the inspection table;
a robot control unit of controlling the sensor detachable robot to attach the at least a vibration sensor to a part of the entered vehicle set according to the type and specification of the entered vehicle;
a data setting unit configured to set a normal signal according to a natural vibration frequency characteristic of the part set for the type and the specification of the vehicle and reference data in which a range criteria thereof is defined;
a display unit that provides an operator input menu (UI) to display a plurality of types of information generated according to the vibration inspection of the vehicle;
a database unit (DB) for storing programs and data for the vibration inspection of the vehicle; and
a control unit that is configured to detect an abnormal state of a component or a system of the vehicle in which an abnormal signal is generated for each predetermined communication channel, to diagnose a location and a cause of the component where the abnormal state has occurred, and to display the abnormal state on the display unit.