摘要:
A linked semiconductor module unit links a plurality of semiconductor modules by a first bus bar and a second bus bar, which are embedded in resin parts. The linked semiconductor module unit is disposed in a place other than on a printed circuit board. The semiconductor module linking structure is implemented readily by molding the bus bars together with semiconductor chips and lands to form the resin parts.
摘要:
A drive apparatus has a motor device having a tubular motor case. A stator is arranged radially inside the motor case. A rotor is arranged radially inside the stator. A shaft is rotatable with the rotor. An electronic circuit is arranged in the central axis direction of the shaft relative to the motor case. A choke coil has a hole in a central part thereof, in which the shaft is inserted.
摘要:
An electronic control unit includes a microcomputer and an input interface circuit. The microcomputer has square wave input ports, a reference square wave input port, a serial communication port, and an output port. Square wave signals are inputted from sensors to four channels of the input interface circuit. A channel selector included in the input interface circuit the selects square wave signals in orderly sequence for capturing. The microcomputer performs a comparison between a time at which the square wave is captured and a time at which the selected square wave signal is captured for diagnosing operation of an input capturing function.
摘要:
An ECU (100, 200) includes a monitoring circuit (2) having a counter (3) for selecting an assignment number (21) of an assignment signal (20), a serial communicating unit (4) for transmitting the assignment signal (20) of the assignment number (21) selected by the counter (3) and to and receiving an answer signal from a microcomputer (1). The ECU also includes a comparing/judging circuit (5) for comparing an answer number (11) with a correct answer number (30) and incrementing the assignment number (21) of the assignment signal selected by the counter (3) by one when both the answers match. This circuit (5) maintains the same assignment number (21) when the answers do not match. The microcomputer (1) performs the operation in conformity with the assignment number (21) of the assignment signal (20) received and transmits the operation result by using an answer signal (10).
摘要:
The present invention is characterized in that in a metal-core multilayer printed wiring board (1) which is obtained by forming one or more of at least inner layers of a laminate having a insulating layer and a conductor layer stacked alternately from a metal plate and has the metal plate as a core, the metal plate (13) is disposed below a site on which a heating element (10) is to be mounted, a surface layer over which the heating element (10) is to be mounted is connected to the metal plate (13) of the inner layer via a BVH (12) and a heat radiation layer (14) is formed over the surface layer. The present invention makes it possible to efficiently radiate heat, which has been released from the heating element, to the outside of the printed wiring board without impairing the packaging density of circuits and at the same time, to mount another element on the side opposite to the side on which the heating element exists.
摘要:
A heat sink has two heat radiation blocks. The heat radiation block is formed in a wide column shape. The heat radiation block has connection parts at both ends. The connection parts have respective holes formed to pass through in the axial direction of a motor. One screw is inserted in one connection part and threaded into a motor case. The other screw is inserted in the other connection part and threaded into the motor case together with a cover. A power module forming an inverter circuit of each of two power supply systems is arranged on each heat radiation blocks.
摘要:
An electronic control unit (50, 70) including semiconductor modules (501 to 506) and capacitors (701 to 706) is disposed in the axial direction of a motor (30). The semiconductor modules (501 to 506) are placed longitudinally and brought into contact with a heat sink (601). The vertical line to each of surfaces of semiconductor chips included in the semiconductor modules (501 to 506) is perpendicular to the axial line of the motor (30). Accordingly, the capacitors (701 to 706) are disposed so that at least a part of the capacitors (701 to 706) overlap the semiconductor modules (501 to 506) and heat sink (601) in the axial direction of the motor (30).
摘要:
A linked semiconductor module unit links a plurality of semiconductor modules by a first bus bar and a second bus bar, which are embedded in resin parts. The linked semiconductor module unit is disposed in a place other than on a printed circuit board. The semiconductor module linking structure is implemented readily by molding the bus bars together with semiconductor chips and lands to form the resin parts.
摘要:
A steering control apparatus acquires vibration torque, which is generated by vibration of a gear mechanism when a steering wheel is operated at a steering angle. By setting the acquired vibration torque as a torque difference, an EPS motor current command value is corrected based on the torque difference thereby to calculate a corrected EPS motor current command value. Rattling and vibration caused in the gear mechanism are suppressed from being transferred to the steering wheel through an input shaft so that a driver is released from uncomfortable feeling.
摘要:
An electronic control unit (50, 70) including semiconductor modules (501 to 506) and capacitors (701 to 706) is disposed in the axial direction of a motor (30). The semiconductor modules (501 to 506) are placed longitudinally and brought into contact with a heat sink (601). The vertical line to each of surfaces of semiconductor chips included in the semiconductor modules (501 to 506) is perpendicular to the axial line of the motor (30). Accordingly, the capacitors (701 to 706) are disposed so that at least a part of the capacitors (701 to 706) overlap the semiconductor modules (501 to 506) and heat sink (601) in the axial direction of the motor (30).