Intelligent self-adaptive electric driving system by adopting central driving form

Abstract

The invention discloses an intelligent self-adaptive electric driving system by adopting a central driving form. The intelligent self-adaptive electric driving system comprises a rotation output component, a power system and a speed change system, the power system drives the rotation output component through the speed change system, and the high-speed gear transmission mechanism comprises a taperdisc type friction clutch and an elastic element set used for applying pre-tightening force to the taper disc type friction clutch. By the adoption of the technical scheme, through a newly-designed central driving type structure, the advantages of a hub motor and a side hanging type structure are achieved at the same time, the defects of the hub motor and the side hanging type structure are overcome, and the intelligent self-adaptive electric driving system is particularly suitable for a two-wheeled vehicle; the actual driving working condition and the motor working condition of the pure electric vehicle can be matched in a self-adaptive mode, the pure electric vehicle has strong climbing and heavy load capacity, the motor is located on an efficient platform all the time, the efficiency ofthe motor under the climbing and heavy load conditions is greatly improved, and the motor energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of electric drive systems, in particular to an intelligent self-adaptive electric drive system adopting a central drive form. Background technique [0002] With the increasingly stringent environmental protection regulations, it is a general trend that new energy vehicles represented by pure electric vehicles, two-wheelers, and tricycles will replace traditional fuel vehicles. Existing two-wheeled electric vehicles generally adopt hub motors and motor side-mounted structures. [0003] The hub motor is directly driven by a low-speed DC motor, which not only has relatively low efficiency and high heat generation, but also breaks the original balance of the wheel structure due to the large size and heavy weight of the motor, which will have a certain impact on handling performance and safety. The side-mounted structure puts the motor and the transmission system (gearbox or reducer) on the same side of the driv...

AI Technical Summary

Problems solved by technology

[0003] The hub motor is directly driven by a low-speed DC motor, which not only has relatively low efficiency and high heat generation, but also breaks the original balance of the wheel structure due to the large size and heavy weight of the motor, which will have a certain impact on handling performance and safety.

The side-mounted structure puts the motor and the transmission system (gearbox or reducer) on the same side of the driving wheel. Although a high-speed motor can be used to improve mechanical efficiency, the weight of the transmission mechanism and the motor is heavy, resulting in unbalanced wheels. Good, especially for two-wheelers

[0004] 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. directly affect the battery life

For models with high economic requirements such as electric logistics vehicles, the traditional variable speed transmission structure obviously cannot better meet their use requirements

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