Invention Grant
US09174631B2 Method and apparatus for controlling transmission shifting in a multi-mode powertrain system 有权
用于控制多模动力系统中的变速器换档的方法和装置

Method and apparatus for controlling transmission shifting in a multi-mode powertrain system
Abstract:
A multi-mode transmission is configured to transfer torque among an internal combustion engine, torque machines and an output member. A method for controlling shifting in the transmission includes, in response to a command to execute a range shift in the transmission to a target transmission range: applying mechanical braking torque to reduce output torque from the transmission to off-load torque from an off-going clutch, operating in a pseudo-gear range to synchronize an oncoming clutch, and applying the oncoming clutch to establish the transmission in the target range.
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