Intellectualized two shift-gears automatic speed-changing electric wheel hub

Abstract

The invention discloses an intelligentized two-shift automatic shift electric hub, which comprises a hub carrier, a box body, an electric motor arranged inside the box body, a drive shaft and a brake device which are arranged inside the box body and matched with the same rotatably, and also comprises a gear shifting mechanism arranged on a gear shaft, and a self-adaptive automatic shift assembly arranged on the drive shaft, wherein the gear shaft is arranged inside the box body and is parallel to the drive shaft. The electric hub is capable of making the output power of the electric motor and the driving conditions of vehicles in the optimal matching state always, thereby realizing balance control of the drive moment of the vehicles and the comprehensive driving resistance; the electric hub is self-adaptive to automatically shift along with the change of the driving resistance without cutting off the driving force, so as to contribute to high efficiency and energy conservation of the vehicles and mechanical power equipment, and to be used in mountain areas, hills and conditions of heavy loads; and the electric hub is provided with a displacement and motor speed sensing mechanism which provides a foundation of calculating and controlling the intelligentized balance control for optimally controlling various parameters of the vehicles. Moreover, a transmission of the invention has light weight and compact structure.

Description

technical field [0001] The invention relates to a transmission of a motor vehicle or mechanical power equipment, in particular to an intelligent two-speed automatic variable speed electric wheel hub. Background technique [0002] In the prior art, electric vehicles, electric motorcycles, and electric bicycles basically control the speed by directly controlling the current through the speed control handle or the accelerator pedal, or use a manual mechanical automatic transmission mechanism to realize the speed change. The operation of the handle or the accelerator pedal depends entirely on the operation of the driver, which often results in a mismatch between the operation and the driving conditions, resulting in unstable operation of the motor and stalling. [0003] Electric vehicles need to achieve intelligent control of current, and load, torque or speed are important parameters. The measurement of this index generally uses a variety of sensors to obtain relevant paramete...

AI Technical Summary

Problems solved by technology

However, this device does not have an automatic shift function

Moreover, the combination of transmission sensing system and automatic shifting system will increase the size of the transmission, which is not suitable for application on small motorcycles and electric vehicles

[0004] Other transmission devices that are operated and controlled by the rider only based on experience without knowing the driving resistance inevitably have the following problems: 1. When starting, going uphill and with a heavy load, the motor speed is forced to drop at Work in the low-efficiency area, causing the motor to stall, heat up, or even stop rotating when the battery increases the supply current

2. Since there is no mechanical transmission to adjust the torque and speed, it can only be used in plain areas, and it cannot be used in mountainous, hilly and heavy-load conditions, which reduces the scope of use; 3. The installation space at the drive wheel is small, and it is very difficult to install the motor It is difficult to accommodate automatic transmission and other new technologies; 4. It does not have the function of self-adaptation, and cannot automatically detect, correct and eliminate the driver's operation errors; 5. When the vehicle speed changes suddenly, the motor will be in an unsteady state running, it will inevitably cause the motor power and driving resistance to be difficult to match

6. The continuation distance is short, the climbing ability is poor, and the adaptability range is small

[0005] Therefore, there is a need for an automatic transmission, which can automatically shift gears without cutting off the driving force according to the change of driving resistance, solve the problem that the small change of motor torque-rotation speed cannot meet the problem of road use under complex conditions, and the space required for installation Small

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