Multiple-speed transmission e.g. eight speed transmission has clutches and brake that are engaged in different combinations to establish eight forward speed ratios and one reverse speed ratio between input and output elements

摘要

The clutches and brake are selectively engaged to interconnect the carrier elements, sun gears and ring gears of the planetary gear sets (14,16,18,20) and a transmission housing (50). The clutches and brake are selectively engaged in different combinations to establish eight forward speed ratios and one reverse speed ratio between the input and output elements (12,22).