US 12,136,301 B2
Method of diagnosing judder detection module
Sun Joo Kim, Suwon-si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Dec. 9, 2021, as Appl. No. 17/546,394.
Claims priority of application No. 10-2021-0085486 (KR), filed on Jun. 30, 2021.
Prior Publication US 2023/0005306 A1, Jan. 5, 2023
Int. Cl. G07C 5/08 (2006.01); B60T 8/17 (2006.01); B60W 50/16 (2020.01); B62D 5/04 (2006.01)
CPC G07C 5/0808 (2013.01) [B60T 8/17 (2013.01); B60W 50/16 (2013.01); B62D 5/0463 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of diagnosing a judder detection module of a vehicle, the method comprising:
receiving a diagnosis request requesting that the judder detection module of the vehicle be diagnosed;
preparing for an execution environment for diagnosis of the judder detection module;
activating the judder detection module;
forcibly generating judder in the vehicle, wherein the forcibly generating judder includes:
operating a power steering motor of a steering wheel of the vehicle, wherein the power steering motor is rotated until torque of the power steering motor reaches a first target torque in a first direction and the power steering motor is rotated until the torque of the power steering motor reaches a second target torque in a second direction, the first direction being opposite to the second direction, and
adjusting a hydraulic pressure applied to a brake of the vehicle, wherein a hydraulic pulse is applied until the hydraulic pressure reaches a predetermined target high-pressure value or a first pressure and the hydraulic pulse is applied until the hydraulic pressure reaches a predetermined target low-pressure value or a second pressure; and
determining whether the judder detection module operates.