Gear shift method for an automatic step gearbox of a vehicle
OwnerZhaohuan Huanginventor
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Abstract
A gear shift method for an automatic step gearbox of a vehicle involves inputting an engine torque to a high-speed shift or a middle-speed shift directly. According to the vehicle speed and a burthen of an engine, the speed is changed in positive direction to enter to the high-speed shift or is changed in reverse direction to return to the low-speed shift through the gearbox. The automatic gearbox utilizes the method to cancel hydro-transmitter and hydraulic electric controlling system.
Claims1
A gear shift method for an automatic step gearbox of a vehicle, comprising inputting an engine torque to a high-speed shift or a middle-speed shift directly, and the gearbox changes the speed in positive direction to enter to the high-speed shift or in reverse direction to return to the low-speed shift according to the vehicle speed and a burthen of an engine.
Dependencies are inferred from the claim text.