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HYDRAULIC FREE MULTISPEED TRANSMISSIONS FOR ELECTRIC VEHICLES AND FUEL CELL HYBRID VEHICLES AND SYSTEMS FOR SHIFTING THE SAME
HYDRAULIC FREE MULTISPEED TRANSMISSIONS FOR ELECTRIC VEHICLES AND FUEL CELL HYBRID VEHICLES AND SYSTEMS FOR SHIFTING THE SAME
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机译:电动汽车和燃料电池混合动力汽车的液压自由多速变速器及其换挡系统
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摘要
A multispeed transmission includes a sun gear, at least one high-speed planetary gear in constant mesh with the sun gear and a high-speed ring gear, where the high-speed planetary gear orbits around the sun gear. The multispeed transmission also includes at least one low- speed planetary gear coupled with the high-speed planetary gear and in constant mesh with a low-speed ring gear and a carrier rotationally engaged with the high-speed planetary gear and the low-speed planetary gear such that either the high-speed planetary gear or the low- speed planetary gear controls rotation of the carrier. The multispeed transmission further includes a transmission case that surrounds the high-speed ring gear and the low-speed ring gear and a clutch located proximate to the high-speed ring gear and the low-speed ring gear, where the clutch selectively couples the high-speed ring gear or the low-speed ring gear with the transmission case.
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