公开(公告)号：US11801895B2

公开(公告)日：2023-10-31

申请号：US17367635

申请日：2021-07-06

申请人： NIDEC CORPORATION

发明人： Sohei Miyake ,  Jun Ogawa ,  Satoru Onishi ,  Masaya Ishikawa

IPC分类号： B62D15/02 ,  B62D6/00 ,  B62D5/04

CPC分类号： B62D15/0245 ,  B62D5/049 ,  B62D6/00 ,  B62D15/0215

摘要： A control device includes a processor and a storage device storing a program for controlling an operation of the processor. The processor determines whether a vehicle is in a straight-ahead traveling state, based on a vehicle speed detected by a vehicle speed sensor, a steering wheel torque applied to a steering wheel, and a steering wheel angle as a rotation angle of an input shaft. The processor stores the steering wheel angle in the memory when determining that the vehicle is in the straight-ahead traveling state. The processor stores the steering wheel angle in the memory multiple times when determining that the vehicle is in the straight-ahead traveling state. The processor calculates a corrected steering angle amount from a weighted average of the steering wheel angles stored in the memory.

公开(公告)号：US11787470B2

公开(公告)日：2023-10-17

申请号：US17458620

申请日：2021-08-27

申请人： Nidec Corporation

发明人： Sohei Miyake

IPC分类号： B62D6/10 ,  B62D5/04

CPC分类号： B62D6/10 ,  B62D5/0481

摘要： A processor calculates a steering wheel torque which an input shaft receives, from a torsion bar torque applied to a torsion bar between the input shaft to which an operation by a driver is input and an output shaft to which a motor applies a drive force, and a rotation angle of the input shaft, compares a calculated steering wheel torque with a threshold value, and determines that a vehicle is in a hands-off state in which the input shaft receives no input based on the operation by the driver when determining that the calculated steering wheel torque changes from a state in which the steering wheel torque exceeds a threshold value to a state in which the steering wheel torque falls below the threshold value.