Patent ID: 11858380
Assignee: HYUNDAI TRANSYS INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  H | IPC B

Claim 0:
1. A folding control apparatus for vehicle seats configured to control folding or unfolding of a first vehicle seat and a second vehicle seat, the folding control apparatus comprising:
a first motor configured to generate driving force necessary to fold the first vehicle seat;
a second motor configured to generate driving force necessary to fold the second vehicle seat;
a first sensor configured to detect at least one of a rotational speed and a rotation amount of the first motor;
a second sensor configured to detect at least one of a rotational speed and a rotation amount of the second motor; and
at least one control module configured to control at least one of the first motor and the second motor based on detection results of the first sensor and the second sensor, wherein
the control module controls at least one of the first motor and the second motor through duty ratio control,
wherein the control module compares a number of first pulses output from the first sensor for a predetermined time and a number of second pulses output from the second sensor for the predetermined time with each other, and upon determining that a difference between the number of first pulses and the number of second pulses is equal to or greater than a predetermined value a, reduces the duty ratio of a driving signal applied to a motor having a larger number of pulses, and upon determining that a difference between the number of first pulses and the number of second pulses is equal to or greater than a predetermined value b, stops application of a driving signal to a motor having a larger number of pulses, wherein the predetermined value a is less than the predetermined value b.