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Automated manual transmission with upshift ball ramp synchronizer clutch and downshift ball ramp synchronizer clutch
Automated manual transmission with upshift ball ramp synchronizer clutch and downshift ball ramp synchronizer clutch
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机译:带有升档球坡同步器离合器和降档球坡同步器离合器的自动手动变速器
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摘要
An automated multi-speed transmission includes an engine clutch operable to establish a releasable drive connection between the engine and an input shaft, an output shaft adapted to transfer power to the driveline, and a synchromesh geartrain having a plurality of constant-mesh gearsets that can be selectively engaged to establish a plurality of forward and reverse speed ratios. The transmission also includes power-operated dog clutches for selectively engaging the constant-mesh gearsets, and a controller for controlling coordinated actuation of the engine clutch and the power-operated dog clutches. The power-operated dog clutch associated with the low and the top gear are used during downshifts and upshifts, respectively, to actuate a clutch assembly for synchronizing the speed of the input shaft and the selected gear prior to engagement of its corresponding dog clutch.
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