Full-mechanical self-adaptive automatic transmission with reverse gear function

Abstract

The invention discloses a full-mechanical self-adaptive automatic transmission with a reverse gear function. The full-mechanical self-adaptive automatic transmission comprises a power input mechanism,a high-speed gear transmission mechanism, a low-speed gear transmission mechanism, a reverse gear transmission mechanism and a main shaft which is used for outputting power. With the above technicalschemes adopted, the actual driving working condition of a pure electric vehicle can be adaptively matched with the working condition of a motor, and therefore, the pure electric vehicle can have strong climbing and heavy load capacity, the motor is located on an efficient platform all the time, the efficiency of the motor under the climbing and heavy load condition of the vehicle is greatly improved, and the energy consumption of the motor is reduced; when the rotating speed of the main shaft is gradually increased to be the same as that of the power input mechanism, the transmission is automatically switched back to a high-speed gear, gear shifting is smooth, therefore, gear shifting and speed changing are automatically conducted along with driving resistance changes in a self-adaptationmode under the condition that a driving force is not cut off, the efficient operation interval of the motor is greatly increased; and the reverse gear transmission mechanism is additionally arranged,and therefore, the situation that a reverse gear output torque is insufficient is avoided.

Description

technical field [0001] The invention relates to the technical field of mechanical transmissions, in particular to an all-mechanical self-adaptive automatic transmission with a reverse gear function. Background technique [0002] Due to the limitations of its transmission structure, the existing electric vehicles are completely controlled by the driver based on experience when the driving resistance cannot be accurately known during driving. The actual driving conditions do not match, causing the motor to stall. Especially when the vehicle is under low-speed and heavy-load conditions such as starting, climbing, and headwind, the motor often needs to work at low efficiency, low speed, and high torque, which is likely to cause accidental damage to the motor and increase maintenance and replacement costs. It directly affects the cruising range of the battery. For models with high economic requirements such as electric logistics vehicles, the traditional variable speed transmis...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of motor stalling and insufficient output torque of the reverse gear that often inevitably occur in the existing pure electric vehicles that the working state of the motor does not match the actual driving conditions, the present invention provides a vehicle with a reverse gear function. Fully mechanical adaptive automatic transmission

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