Gear-shifting continuous torque device and control method thereof

Abstract

The invention provides a gear-shifting continuous torque device and a control method thereof. According to the gear-shifting continuous torque device and the control method thereof, through miniaturization and modularization design, only the size of an output end face interface of an existing product needs to be modified, the product is directly installed at the output end of a speed changer, and through adjustment of controller software (TCU), a speed changing box can continuously output the whole vehicle required torque in the gear-shifting process; power is not interrupted in the gear shifting process, and the gear shifting pause feeling is eliminated; when shifting gears, torque can be continuously output to a vehicle, auxiliary driving can be provided for the vehicle under special road conditions such as pit passing and climbing, and the function of increasing torque output is achieved; the gear-shifting continuous torque device only works during gear-shifting continuous torque and torque-assisting under special road conditions, continuous operation is not needed, the short-time overload capacity of a motor can be fully utilized, and the purposes of continuous torque and torque-assisting are achieved; therefore, the requirements on the motor and a gear are low; the adopted continuous torque motor is a high-speed low-torque motor, so that the cost is low; and the mounting position is flexible, the structure is compact, and the size is small.

Description

technical field [0001] The invention relates to the field of new energy transmissions, in particular to a gear shifting continuous torque device and a control method thereof. Background technique [0002] For the field of commercial vehicles, whether it is a traditional internal combustion engine vehicle or a new energy vehicle that has developed rapidly in recent years, most of them use AMT-based automatic transmissions. This type of transmission, because of its simple structure and low cost, has always been the mainstream technical route in the field of commercial vehicles, but it also has prominent shortcomings, that is, the power interruption during the shifting process will produce obvious shifting shocks, causing vehicle Poor smoothness, although software (TCU) can effectively reduce interrupts, but the inherent structural shortcomings make it impossible to completely eliminate. Especially for heavy-duty commercial vehicles and non-road vehicles, in order to avoid pow...

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