公开(公告)号：US11888388B2

公开(公告)日：2024-01-30

申请号：US17276042

申请日：2019-09-12

Applicant: SANDEN AUTOMOTIVE COMPONENTS CORPORATION

Inventor： Yunhai Jin ,  Hiroshi Yoshida

IPC: H02M1/32 ,  F04B35/04 ,  H02H7/16 ,  H02P23/28 ,  H02J7/00 ,  H02M7/5387 ,  H02P27/06

CPC classification number: H02M1/322 ,  F04B35/04 ,  H02H7/16 ,  H02J7/0029 ,  H02M7/5387 ,  H02P23/28 ,  H02J2207/50 ,  H02P27/06

Abstract: To provide a high-voltage apparatus control device capable of judging the connection state of a connector and discharging residual charge in a short time. A control device 1 controls an electric compressor and is provided with an interlock loop 4 annexed to a connector 9 for connecting the electric compressor to an HV battery 17. The control device 1 detects connection/disconnection of the connector 9 on the basis of the state of the interlock loop 4 and forcibly discharges residual charge in an internal smoothing capacitor 14 when disconnection of the connector 9 is detected.

公开(公告)号：US11709210B2

公开(公告)日：2023-07-25

申请号：US17275894

申请日：2020-02-14

Applicant: SANDEN AUTOMOTIVE COMPONENTS CORPORATION

Inventor： Hiroshi Yoshida ,  Yunhai Jin

IPC: G01R31/66 ,  B60L1/00 ,  B60L3/12 ,  H01H9/22 ,  B60H1/00

CPC classification number: G01R31/66 ,  B60L1/00 ,  B60L3/12 ,  H01H9/226 ,  B60H1/00428

Abstract: Provided is an interlock device for a high voltage apparatus which enables not only the diagnosis of the connected or non-connected state of a connector during normal operation of the interlock device, but also the detection of a failure of the interlock device itself, including a failure of the interlock loop. The device includes an interlock loop 16 annexed to an HV connector 7 for connecting an electric compressor to an HV battery 8, a detecting signal output unit, a first switching element, a controlling voltage switching circuit operable, in a closed state of the interlock loop, to switch a voltage applied to a control electrode of the first switching element according to an output of the detecting signal output unit, a second switching element operable, in an open state of the interlock loop, to apply to the control electrode of the first switching element an output of the controlling voltage switching circuit so as to cause an ON/OFF state of the first switching element to be inverted from when the interlock loop is in the closed state, and a failure diagnosis unit.