公开(公告)号：US12212268B2

公开(公告)日：2025-01-28

申请号：US18186858

申请日：2023-03-20

Applicant: DENSO CORPORATION

Inventor： Yusuke Shibata ,  Takashi Suzuki

IPC: H02P3/12 ,  B60L50/51 ,  H02M7/5395 ,  H02P5/505 ,  H02P5/68

Abstract: A motor control device drives first and second motors for outputting torque in braking or non-braking direction in a vehicle brake device, includes: an electric power converter that includes first to third legs having positive and negative switch elements; and a control unit. When the control unit energizes from the positive switch element of the first or third leg to the negative switch element of the second leg, the first and second motors output the torque in a same direction. When an absolute value of current flowing or estimated to flow in at least one of the first motor and the second motor exceeds a current threshold, the control unit drives the positive and negative switch elements of the second leg.

公开(公告)号：US10979061B2

公开(公告)日：2021-04-13

申请号：US16817982

申请日：2020-03-13

Applicant: DENSO CORPORATION

Inventor： Yusuke Shibata

IPC: H03M1/10

Abstract: An analog-to-digital conversion device includes: a switch connected to input units through signal lines to receive external voltages selecting and outputting one external voltage; an S/H circuit holding a voltage corresponding to an output of the switch; a converter performing AD conversion based on the voltage; and a controller determining the external voltage selected by the switch and performing a disconnection determination whether a disconnection occurs in the signal line. In the disconnection determination, the controller controls the switch to select a reference voltage different from the external voltage before controlling the switch to select the external voltage to be determined, and performs the disconnection determination based on a voltage difference between the reference voltage and the external voltage after controlling the switch to select the external voltage.