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37results about How to "Realize high efficiency" patented technology

Control for hybrid electric vehicle and control method

The present invention relates to a hybrid electric vehicle, a control system and method thereof. The hybrid electric vehicle comprises a first inverter (23) for converting the DC of a generator (20) into AC and a second inverter (24) connected with the first inverter (23) in parallel. A generator (25) connects with the first inverter (23) and the second inverter (24). The hybrid electric vehicle calculates needed current when generator (25) is driving, and controls selective operation of the first inverter (23) and the second inverter (24) based on the current so as to drive the first inverter and the second inverter to operate with optimal efficiency. In addition, the hybrid electric vehicle calculates the current generated by the generator (25) when using a current generating accumulator generated by the generator (25), and controls selective operation of the first inverter (23) and the second inverter (24) based on the current so as to drive the first inverter and the second inverter to operate with optimal efficiency. The hybrid electric vehicle can also avoid inverters overloading.
Owner:MAZDA MOTOR

Stacking-preventing type transporting and encasing device on small fruit picking robot

The invention discloses a stacking-preventing type transporting and encasing device on a small fruit picking robot, and relates to the mechanical and automatic field in facility agriculture. The stacking-preventing type transporting and encasing device comprises a fruit conveyor belt, a fruit dispersing and encasing mechanism, a fruit box position regulating mechanism, a supporting mechanism and acontrol system, wherein the fruit conveyor belt is driven by a servo motor; a strip-shaped bump is attached on the conveyor belt to prevent fruits from directly dropping, and a height adjustable device is arranged on the conveyor belt, so that transporting height and a transporting angle can be adjusted according to practical needs; the fruit dispersing and enclosing mechanism is used for dispersing fruits from an opening through centrifugal force, dropping the fruits into a separating circular disc and dropping the fruits into a fruit box below from a porous type pipeline inlet in the fruitdispersing and enclosing mechanism; and the fruit box position regulating mechanism is attached with a special fruit box rack for placing fruit boxes, and a bottom lead screw lifting device can be jacked by the fruit boxes to move up and down along guide rails. The stacking-preventing type transporting and encasing device on the small fruit picking robot is simple in operation, is convenient in use, and can realize unmanned and automatic operation of fruit encasing on the fruit picking robot.
Owner:NORTHWEST A & F UNIV

Laminated iron core, and its manufacturing method

The invention provides a laminated core 10 including a plurality of segment core sheets 13 spirally wound and laminated in layers while connecting portions 12 connecting the adjacent segment core sheets 13 are bent, ends of the segment core sheets 13 are aligned with each other and the connecting portions 12 in the adjacent layers are circumferentially displaced relative to each other, the connecting portions 12 located in outer peripheral areas 11 of the segment core sheets 13, the laminated core 10 comprising: a concave cutout 22 formed on a radially outward side of the connecting portion 12, the concave cutout 22 accommodating a radially expanded part 21 within an outer circle of the laminated core 10, the radially expanded part 21 formed in the connecting portion 12 radially outward atthe bending of the connecting portion 12; an interior cutout 23 formed on a radially inward side of the connecting portion 12, the interior cutout 23 defining a bent position of the connecting portion 12; and depressed receptacles 16, 17 respectively formed on a top side and a bottom side of a radially outward area of the segment core sheet 13 except for the connecting portions 12, the depressedreceptacles 16, 17 each receiving a thickness-direction expanded part 15 formed in the connecting portion 12 in a thickness direction thereof at the bending of the connecting portion 12.
Owner:MITSUI HIGH TEC INC

Non-contact power supply device

A non-contact power supply device (1) of the present invention comprises: non-contact power supply elements (41, 42) and a high-frequency power supply circuit (5) both provided in a fixed unit (2); and a non-contact power receiving elements (61, 62) and a power receiving circuit (7) both provided in a movable unit (3), said power receiving circuit (7) converting the high-frequency power received by the non-contact power receiving elements (61, 62) and supplying the converted high-frequency power to a power load (L) in the movable unit (3). In the non-contact power supply device (1), the power load (L) selectively consumes or generates power. The non-contact power supply device (1) further comprises: a regeneration reverse-transmission circuit for reversely transmitting regenerative power generated by the power load (L) from the non-contact power receiving elements (61, 62) to the fixed unit (2) via the non-contact power supply elements (41, 42) in a non-contact fashion; and an electricity storage element (52) provided in the fixed unit (2) and storing the reversely transmitted regenerative power. This enables the regenerative power obtained by the power load (L) in the movable unit (3) to be effectively used and the weight and size of the movable unit (3) to be reduced in comparison with conventional techniques.
Owner:FUJI KK

Synchronous rectification switching-converter

A synchronous rectification type switching-converter is provided with: a synchronous rectifier circuit connected to the secondary side of a transformer; and a control circuit for on / off controlling a primary side switching circuit and the synchronous rectifier circuit at each sampling timing. The control circuit is provided with: a gate blocking means for, when a detection value detected by a reactor current detection sensor and a predetermined threshold value are compared with each other and the detection value becomes less than or equal to the threshold vale, outputting a gate blocking signal for stopping the operation of a synchronous rectification element; and a correction means for, when the gate blocking means compares the detection value currently sampled by the detection sensor with the predetermined threshold value upon detecting, on the basis of the detection value detected by the detection sensor, that the decrease of the reactor current is a certain level or more, correcting either the detection value or the threshold value with reference to the history of the detection value detected by the detection sensor.
Owner:SANSHA ELECTRIC MFG

Compressor

Provided is a compressor equipped with an oil separation mechanism unit (40) that separates oil from a refrigerant gas discharged from a compression mechanism part (10), with the oil separation mechanism unit (40) having: a cylindrical space (41) in which the refrigerant gas is caused to rotate; an inflow part (42) that introduces the refrigerant gas discharged from the compression mechanism part (10) into the cylindrical space (41); a delivery outlet (43) that delivers the refrigerant gas, from which the oil has been separated, from the cylindrical space (41) to one space (31) within a container; and a discharge port (44) that discharges the separated oil from the cylindrical space (41) to the other space (32) within the container. The delivery outlet (43) is provided with an impactor (49) with a prescribed distance therebetween. Thus, the electric motor part is highly efficient, and the compressor has improved volumetric efficiency and low oil circulation.
Owner:PANASONIC CORP
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