초록 ▼

A hydraulic transmission pump assembly includes a pump adapted to provide fluid under pressure to predetermined components in a transmission, an electric motor operatively coupled to the pump, and a line pressure control device in electrical communication with the electric motor. The line pressure c

A hydraulic transmission pump assembly includes a pump adapted to provide fluid under pressure to predetermined components in a transmission, an electric motor operatively coupled to the pump, and a line pressure control device in electrical communication with the electric motor. The line pressure control device is operable to control the electric motor as to cause it to drive the pump when engine speeds are below a predetermined level such that the pump provides fluid at a predetermined volume and pressure to the transmission during this operating condition. A differential gear assembly is also included that is interposed between an engine and the electric motor, the differential gear assembly acting to drive both the pump and the electric motor when engine speeds are above the predetermined level such that the pump provides fluid at a predetermined volume and pressure to the transmission and the electric motor provides generated electricity.

대표청구항 ▼

A hydraulic transmission pump assembly includes a pump adapted to provide fluid under pressure to predetermined components in a transmission, an electric motor operatively coupled to the pump, and a line pressure control device in electrical communication with the electric motor. The line pressure c

A hydraulic transmission pump assembly includes a pump adapted to provide fluid under pressure to predetermined components in a transmission, an electric motor operatively coupled to the pump, and a line pressure control device in electrical communication with the electric motor. The line pressure control device is operable to control the electric motor as to cause it to drive the pump when engine speeds are below a predetermined level such that the pump provides fluid at a predetermined volume and pressure to the transmission during this operating condition. A differential gear assembly is also included that is interposed between an engine and the electric motor, the differential gear assembly acting to drive both the pump and the electric motor when engine speeds are above the predetermined level such that the pump provides fluid at a predetermined volume and pressure to the transmission and the electric motor provides generated electricity. shape. 5. The brightness-enhancing light guiding plate of claim 4, wherein the non-reflection recess surface of each of the brightness-enhancing recesses is parallel with the light incident surface. 6. The brightness-enhancing light guiding plate of claim 1, wherein each of the brightness-enhancing recesses of the bottom surface has a semi-circular cone shape. 7. The brightness enhancing light guiding plate of claim 6, wherein the reflection recess surface has a curved side surface and the non-reflection recess surface has a plat side surface. 8. The brightness-enhancing light guiding plate of claim 1, wherein each of the brightness-enhancing recesses of the bottom surface has a groove shape. 9. The brightness-enhancing guiding plate of claim 1, wherein the second inclination of the non-reflection recess surface is greater than the first inclination of the reflection recess surface. 10. A liquid crystal display comprising: a backlight assembly including: a brightness-enhancing light guiding plate having a light incident surface through which a light is incident, a bottom surface arranged adjacent to the light incident surface, for reflecting the light, and a light output surface opposite the bottom surface and through which the light is outputted, wherein the bottom surface has a plurality of brightness-enhancing recesses, each of the brightness-enhancing recesses has a reflection recess surface which faces the light incident surface with a first inclination with respect to the bottom surface and reflects the light toward the light output surface, and a non-reflection recess surface which is extended from an end of the reflection recess surface with a second inclination with respect to the bottom surface, and the second inclination of the non-reflection recess surface is determined such that the number of the brightness-enhancing recesses is maximized in the bottom surface; and an optical distribution changing means for making uniform an optical distribution of the light output from the brightness-enhancing light guiding plate; and an LCD panel assembly for controlling an amount of the light generated from the backlight assembly to display an image. 11. The liquid crystal display of claim 10, wherein the reflection recess surface and the non-reflection recess surface are alternatively disposed on the bottom surface. 12. The liquid crystal display of claim 10, wherein the second inclination is an angle of 90°. 13. The liquid crystal display of claim 10, wherein each of the brightness-enhancing recesses of the bottom surface has a polypyramid shape. 14. The liquid crystal display of claim 13, wherein the non-reflection recess surface of each of the brightness-enhancing recesses is parallel with the light incident surface. 15. The liquid crystal display of claim 10, wherein each of the brightness-enhancing recesses of the bottom surface has a semi-circular cone shape. 16. The liquid crystal display of claim 10, wherein each of the brightness-enhancing recesses of the bottom surface has a groove shape. 17. The liquid crystal display of claim 10, wherein the second inclination of the non-reflection recess surface is greater than the first inclination of the reflection recess surface. 18. A brightness-enhancing light guiding plate, comprising: a light incident surface through which a light is incident; a bottom surface arranged adjacent to the light incident surface, for reflecting the light; a light output surface opposite the bottom surface and through which the light is output; and a brightness-enhancing portion including a plurality of recesses, each of the recesses having a reflection recess surface which faces the light incident surface with a first inclination with respect to the bottom surface and reflects the light toward the light output surface, and a non-reflection recess surface which is extended from an end of the reflection recess surface with a second inclination with respect to the bottom surface, wher ein each of the recesses has a polypyramid shape or a semi-circular cone shape. 19. The brightness-enhancing light guiding plate of claim 18, wherein each of the recesses has the polypyramid shape, the non-reflection recess surface of each of the recesses is parallel with the light incident surface. 20. The brightness-enhancing light guiding plate of claim 18, wherein each of the recesses has the semi-circular cone shape, the reflection recess surface of each of the recesses has a curved side surface and the non-reflection recess surface of each of the recesses has a plat side surface.