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公开(公告)号：US10833621B2
公开(公告)日：2020-11-10
申请号：US16491533
申请日：2018-02-28
发明人： Haruhiko Fujita , Hirofumi Watanabe
摘要： A drive control device and a drive control method for electric motors are capable of detecting a leakage current in a multilayer wiring board without providing a current sensor. The drive control device has an inverter circuit mounted on the multilayer wiring board, and a shunt resistor for detecting a bus current in the inverter circuit. The upstream and downstream wiring portions of the inverter circuit are disposed facing each other in neighboring layers of the multilayer wiring board, with insulating layers interposed therebetween. The multilayer wiring board has a sensing pattern layer which guides, to the shunt resistor, the leakage current flowing from the upstream wiring portion to the downstream wiring portion, and the presence or absence of leakage current is determined based on the current flowing through the shunt resistor during the period in which the regenerative current is generated in the electric motor.
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公开(公告)号：US11444516B2
公开(公告)日：2022-09-13
申请号：US16957882
申请日：2018-12-28
摘要： A wiring board (3) has first and second rigid sections (11, 12) each having six metal leaf layers, and a flexible section (13) having two metal leaf layers that connect the both rigid sections (11, 12). A capacitor unit (34) and a filter unit 31, which supplies power to an inverter, are mounted on the first rigid section (11), and a CPU (21) and a pre-driver circuit element (22) are mounted on the second rigid section (12). Mutually-independent two control systems are arranged so as to be symmetrical about a board center line (M). Detection signal lines (51) of rotation sensors (37, 38) located at the middle of the first rigid section (11) extend along the board center line (M) on the flexible section (13). Each of the two control systems is configured along a wiring direction of the detection signal lines (51).
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公开(公告)号：US10681810B2
公开(公告)日：2020-06-09
申请号：US16331510
申请日：2017-08-23
摘要： A circuit board (3) of an electronic control device has a connector fixing screw penetration hole (16) which a connector fixing screw penetrates, a resist layer (13) and a joining portion (23) which is formed at a circumference of connector fixing screw penetration hole (16) and to which the connector fixing screw can be soldered. Joining portion (23) is formed at an inner side of a resist layer opening (22) which is open at the circumference of connector fixing screw penetration hole (16). Joining portion (23) is formed so that an area of joining portion (23) located at an inner side of circuit board (3) with respect to a center (C1) of connector fixing screw penetration hole (16) is larger than an area of joining portion (23) located at an outer side of circuit board (3) with respect to the center (C1) of connector fixing screw penetration hole (16).
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公开(公告)号：US09610932B2
公开(公告)日：2017-04-04
申请号：US14472518
申请日：2014-08-29
CPC分类号： B60T13/745 , B60T11/103
摘要： Disclosed is a brake control apparatus including a master cylinder that generates a hydraulic braking pressure in response to operation of a brake pedal, an electric motor that drives the master cylinder, a housing in which the master cylinder and the electric motor are assembled, and a control unit adapted to perform drive control of the electric motor. The control unit has a bottom formed at least partially integral with the housing and includes a circuit board mounting thereon drive elements to drive the electric motor. The brake control apparatus includes a heat radiating seat located on an inner surface of the bottom of the control unit at a position apart from the electric motor and closer to the master cylinder than the electric motor and brought into thermal contact with the circuit board so as to radiate heat of the drive elements toward the housing.
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公开(公告)号：US09060440B2
公开(公告)日：2015-06-16
申请号：US13852607
申请日：2013-03-28
CPC分类号： H05K7/1417 , H02K11/30 , H02K11/33
摘要： A supporting structure comprises a base member to support a printed circuit board, a holder standing upright from the base member and supporting the printed circuit board; and a support standing upright from the base member and supporting the printed circuit board sidewise. The support includes a column standing upright from the base member, and having a modulus of elasticity greater than that of the holder, and an abutment portion to abut on a side surface of the printed circuit board.
摘要翻译： 支撑结构包括支撑印刷电路板的基座构件，从基座构件直立并支撑印刷电路板的支架; 以及支撑件，其从基部构件直立并且侧向地支撑印刷电路板。 所述支撑体包括从所述基底构件竖立的柱，并且具有大于所述保持件的弹性模量的柱，以及邻接所述印刷电路板的侧表面的抵接部。
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公开(公告)号：US11419208B2
公开(公告)日：2022-08-16
申请号：US16957895
申请日：2018-12-28
摘要： A circuit board (3) is provided with a first rigid part (11) having a power system electronic component mounted thereon, a second rigid part (12) having a control system electronic component mounted thereon, and a thin flexible part (13) connecting the first and second rigid parts to each other. The flexible part (13) is provided with a plurality of conductive wires (27) conducted with the electronic components of the first and second rigid parts (11, 12). A non-conductive metal pattern (33) that is a dummy pattern is formed along an outer edge (13a) of the flexible part (13). By the non-conductive metal pattern (33), the disconnection of the conductive wires (27) due to cracking is suppressed.
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公开(公告)号：US09604619B2
公开(公告)日：2017-03-28
申请号：US14177349
申请日：2014-02-11
CPC分类号： B60T13/66 , B60T13/745
摘要： A brake control apparatus includes a master cylinder configured to generate a brake pressure according to a depressing force of a brake pedal; an electric motor configured to operate the master cylinder; a control board configured to control the electric motor; and a board receiving portion arranged along an outer circumference of the master cylinder. The board receiving portion receives the control board such that a component-mounting surface of the control board faces in an axial direction of the master cylinder.
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