摘要:
In the battery charging device of the present invention, a U, V, W phase voltage generating circuit detects a voltage signal of a U phase sub-coil of a three-phase alternating current generator, and generates a signal of a triangular wave that is in synchronization with the U phase. Moreover, a first triangular wave is generated in synchronization with a phase from 0° to 180° of the U phase rectangular wave, and a second triangular wave is generated in synchronization with a phase from 180° to 360° of the U phase. In addition, a V phase rectangular wave is generated in which the level is inverted at a voltage point of two thirds the peak voltage of the first triangular wave, and in which the level is inverted at a voltage point of two thirds the peak voltage of the second triangular wave, and a W phase rectangular wave is generated in which the level is inverted at a voltage point of one third the peak voltage of the first triangular wave, and in which the level is inverted at a voltage point of one third the peak voltage of the second triangular wave.
摘要:
In the battery charging device of the present invention, a U, V, W phase voltage generating circuit detects a voltage signal of a U phase sub-coil of a three-phase alternating current generator, and generates a signal of a triangular wave that is in synchronization with the U phase. Moreover, a first triangular wave is generated in synchronization with a phase from 0° to 180° of the U phase rectangular wave, and a second triangular wave is generated in synchronization with a phase from 180° to 360° of the U phase. In addition, a V phase rectangular wave is generated in which the level is inverted at a voltage point of two thirds the peak voltage of the first triangular wave, and in which the level is inverted at a voltage point of two thirds the peak voltage of the second triangular wave, and a W phase rectangular wave is generated in which the level is inverted at a voltage point of one third the peak voltage of the first triangular wave, and in which the level is inverted at a voltage point of one third the peak voltage of the second triangular wave.
摘要:
A battery charging device of the present invention has a rectifier portion that is formed by switching elements, and performs advance angle/delay angle control. An advance angle/delay angle amount in the advance angle/delay angle control is determined based on a differential voltage between the voltage of a battery and a predetermined target voltage. In this case, when a determined delay angle amount exceeds a delay angle limit value, delay angle control is performed using the delay angle limit value. Moreover, the power generation amount of an alternating current generator is detected, and the delay angle amount and power generation amount are stored. If the current delay angle amount is greater than the previous delay angle amount, and the previous power generation amount is greater than the current power generation amount, then the previous delay angle amount is set as the delay angle limit value.
摘要:
A battery charging device of the present invention has a rectifier portion that is formed by switching elements, and performs advance angle/delay angle control. An advance angle/delay angle amount in the advance angle/delay angle control is determined based on a differential voltage between the voltage of a battery and a predetermined target voltage. In this case, when a determined delay angle amount exceeds a delay angle limit value, delay angle control is performed using the delay angle limit value. Moreover, the power generation amount of an alternating current generator is detected, and the delay angle amount and power generation amount are stored. If the current delay angle amount is greater than the previous delay angle amount, and the previous power generation amount is greater than the current power generation amount, then the previous delay angle amount is set as the delay angle limit value.
摘要:
Male terminals are respectively provided in terminal attachment portions formed on a flange unit. Female terminals and grommets are provided for a harness. A seal lip portion to be fitted into each of the terminal attachment portions is formed on each of the grommets. In the cylindrical terminal attachment portions the male terminals are individually accommodated while being electrically insulated from each other. The terminal attachment portions are arranged alternately in two rows so that a line segment obtained by connecting the respective centers of openings of the terminal attachment portions is a polygonal line. The openings are arranged to form the Olympic symbol. At a fore-end of each of the terminal attachment portions, slits are provided. Owing to the slits, the opening is likely to be enlarged when the rubber grommet is inserted therethrough. As a result, the placement of the rubber grommet is facilitated.
摘要:
An organic composite insulator (tube) and method for production thereof giving an external flashover characteristic, enabling a reduction of the cost, and enabling a reduction of the size of the insulator. The outside diameters of the insulator sheath body and watersheds at only the intermediate insulator sheath (3c) corresponding to the vicinity of the tip (6a) of the top of the inside electrode (6) are made larger than the outside diameters of the body and watersheds of the upper and lower insulator sheaths (3a) and (3b). The electric field of the sheath surface in the vicinity of the tip (6a) of the top of the inside electrode (6) exhibiting the maximum electric field in the large size insulator is weakened and the maximum electric field part is moved to the top portion of the sheath body and watersheds enlarged in inside diameter. Further, the insulator act to block the propagation of the air dielectric breakdown occurring at the maximum electric field part to the ground side end fitting (2′) and thereby to increase the external flashover voltage.
摘要:
Solid-electrolyte fuel cell electrode material in the form of a membrane formed on a solid electrolyte surface from a powder obtained by pulverizing a sintered body obtained by sintering a mixture of lanthanum-based electrode material and 5 to 50 mol % platinum.
摘要:
A motor terminal portion structure is provided which can satisfactorily drain the water in an insulating member surrounding the outer circumference of a terminal and prevent water from entering the insulating member, in addition to allowing the insulating member to be commoditized without being influenced by motor layout. A motor terminal portion structure includes an insulator that is formed in a cylindrical shape surrounding the outer circumference of a terminal and is secured to a bracket. A drain hole is provided to establish communication between the inside and outside of the insulator. A flange portion shields an opening of the drain hole on the outside of the insulator. A plurality of the drain holes are disposed around the terminal. The outer side surface of the insulator and the inside surface of the flange portion are each formed in regular polygon so as to conform to each other. A portion of the flange portion facing vertically downward in an on-board state is formed as a notch.
摘要:
A method of assembling a vehicular body includes the following operations: positioning a floor main and making a relative positioning between the floor main and a body side's lower section, by using a three-dimension general locator device standing on a floor, and positioning each of a right body side, a left body side and a roof rail and making the relative positioning between the body side's upper section and the roof rail, by using a front body side upper section locator jig and a rear body side upper section locator jig which are disposed on a ceiling and independent of each other in a forward-and-rearward direction of the vehicular body, and each of which is replaceable in accordance with a type of vehicle.
摘要:
A semiconductor memory device (50) having a boosted potential generation circuit is provided. The boosted potential generation circuit may provide charge to a boosted potential node when a word line (11) is to be activated. The boosted potential generation circuit may include a boosting control circuit (5), a boosted potential detection circuit (6), an oscillator circuit (7), and a booster circuit (8). The boosting control circuit (5) may generate a boosting control signal when a command decoder (1) indicates that a word line may be activated. In response to the boosting control signal, the boosted potential detection circuit (6) may enable the oscillator circuit (7) so that booster circuit (8) may transfer charge to the boosted potential node. This may allow the boosted potential node to have adequate charge that may be provided to the word line when activated.