Shift control method and device

A device for controlling gear shifting, wherein the device is applied to a vehicle, the vehicle comprises a dual-clutch automatic transmission, and the device comprises:

• a current-gear-shifting-parameter acquiring module configured for acquiring a current gear-shifting parameter of the vehicle;
• a gear-shifting-inputted-rotational-speed determining module configured for, according to the current gear-shifting parameter and a preset target rotational speed, determining a gear-shifting inputted rotational speed;
• and
• a shifting-fork controlling module configured for, when a rotational speed of the vehicle reaches the gear-shifting inputted rotational speed, controlling a shifting fork to start up a gear-shifting operation;
• wherein
• the current-gear-shifting-parameter acquiring module comprises:
• a first-duration acquiring submodule configured for acquiring a first duration T1 corresponding to gear engaging of the shifting fork;
• a second-duration acquiring submodule configured for acquiring a second duration T2 corresponding to oil filling of clutches;
• a third-duration acquiring submodule configured for acquiring a third duration T3 corresponding to torque swap between the clutches;
• and
• an output-shaft-angular-acceleration acquiring submodule configured for acquiring an angular acceleration Grad of an output shaft of the vehicle;
• and
• the gear-shifting-inputted-rotational-speed determining module comprises:
• a gear-shifting-rotational-speed-variation-value determining submodule configured for, according to the T1, the T2, the T3, the Grad, a first speed ratio R1 of a current gear of a dual-clutch automatic transmission and a second speed ratio R2 of a target gear of the dual-clutch automatic transmission, determining a gear-shifting rotational-speed variation value ΔRpm;
• a preset-target-rotational-speed determining submodule configured for determining the preset target rotational speed Rpm corresponding to the target gear;
• and
• a gear-shifting-inputted-rotational-speed determining submodule configured for, according to the ΔRpm and the preset target rotational speed Rpm, determining the gear-shifting inputted rotational speed.