公开(公告)号：US12162543B2

公开(公告)日：2024-12-10

申请号：US18053695

申请日：2022-11-08

Applicant: DENSO CORPORATION

Inventor： Takashi Suzuki ,  Hideki Kabune ,  Toshihiro Fujita ,  Kunihiko Matsuda ,  Haruki Amano

IPC: B62D5/04

Abstract: A first circuit energizes a steering assist actuator to electrically assist steering of a driver. A second circuit is provided in a same housing as the first circuit and energizes a positional actuator to move a steering position. A controller operates the first and second circuits to control operations of the steering assist actuator and the positional actuator. The controller changes a priority between the first circuit and the second circuit in a start period, in which the steering control device is started, a normal operation period, in which the steering control device is operated normally, and a stop period, in which the steering control device is stopped. The priority includes at least one of an order of operating the first circuit and the second circuit, output allocation between the first circuit and the second circuit, and output magnitude between the first circuit and the second circuit.

公开(公告)号：US12062979B2

公开(公告)日：2024-08-13

申请号：US18059909

申请日：2022-11-29

Applicant: DENSO CORPORATION

Inventor： Kunihiko Matsuda

IPC: H02M3/07 ,  H02M3/158

CPC classification number: H02M3/076 ,  H02M3/1582

Abstract: A drive device for driving a load includes: an inverter unit having an upper arm element and a lower arm element and converting electric power supplied to the load; and a charge pump circuit that supplies a gate voltage to the upper arm element. An output voltage of the charge pump circuit is variable according to an inverter input voltage input from an inverter input wiring to a high potential side of the inverter unit.

公开(公告)号：US11952972B2

公开(公告)日：2024-04-09

申请号：US17813853

申请日：2022-07-20

Applicant: DENSO CORPORATION

Inventor： Kunihiko Matsuda

IPC: F02N11/00 ,  F02N11/08

CPC classification number: F02N11/087 ,  F02N11/0814 ,  F02N2011/0874 ,  F02N2200/063

Abstract: A booster is mounted on a vehicle having an idle stop function. The booster boosts an input voltage supplied from a battery, and outputs the boosted input voltage to an in-vehicle device. The booster includes a booster circuit and an output voltage sensor. The booster circuit is a chopper-type, and includes a reactor having one end connected to the battery and a switching element connected between an other end of the reactor and a ground. The output voltage sensor detects an output voltage of the booster circuit.

公开(公告)号：US11345397B2

公开(公告)日：2022-05-31

申请号：US16668321

申请日：2019-10-30

Applicant: DENSO CORPORATION

Inventor： Kunihiko Matsuda ,  Katsuhiko Hayashi ,  Takaharu Kozawa

IPC: B62D5/04

Abstract: Switching elements are mounted on a substrate and switch energization of motor windings. A lead wire set connects phase coils of the motor windings to the substrate. The switching elements, the lead wire set, a power terminal which is a power supply terminal and a ground terminal, and a control circuit unit are provided for each system. The switching elements, the lead wire set and the power terminal are collectively arranged in a power region for each system, and the lead wire sets are arranged in rotational symmetry.