Invention Grant
US08634995B2 Method and system for providing a voting strategy for determining a mode state in a shift-by-wire transmission 有权
用于提供用于在线传输中确定模式状态的投票策略的方法和系统

Method and system for providing a voting strategy for determining a mode state in a shift-by-wire transmission
Abstract:
A voting strategy is used to determine the mode state of a transmission when a vehicle is restarted. A Powertrain Control Module, a Transmission Range Control Module, and a Gear Shift Module communicate through a communication network during execution of the voting strategy. Each module stores a remembered mode state (Normal, Neutral Hold, Neutral Tow, etc.) of the transmission in non-volatile memory. Upon module initialization, the Powertrain Control Module will compare its own remembered mode state of the transmission with the remembered mode state reported by the other two modules. A basic voting strategy is that if two of the three modules report the same remembered mode state then the Powertrain Control Module changes the transmission to that same mode state.
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