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Multiple-ratio transmission downshift strategy for hybrid electric vehicle powertrains
Multiple-ratio transmission downshift strategy for hybrid electric vehicle powertrains
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机译:混合动力电动汽车动力总成的多传动比降档策略
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摘要
A control system and method for a hybrid electric vehicle powertrain supplies battery power boost torque to vehicle traction wheels to modify shift points for a multiple ratio transmission in the powertrain. A shift schedule is adjusted to avoid a downshift for small changes in torque demand, thus reducing shift frequency due to small transient changes in torque demand.
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