Brake friction power generation system on low-power electric vehicles

A technology of electric vehicles and power generation systems, applied in electric vehicles, electric components, vehicle parts, etc., can solve problems such as tire wear and shortened tire service life, and achieve the effect of large braking force and large power generation
CN107070084BInactive Publication Date: 2019-06-07SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
Publication Date
2019-06-07
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a braking friction power generation system on a small-power electric vehicle, which comprises a wheel hub with the cross section of an outer ring being Y-shaped, and is characterized in that two side surfaces of the wheel hub are symmetrically provided with two depended wheels, the depended wheels have a clearance with the wheel hub at a non braking state, and the depended wheels are tightly contacted with the wheel hub at a braking state so as to generate friction; the two depended wheels are connected with bevels through connecting shafts respectively, the bevels are meshed with a generator rotor, and the left and right bevels have two meshing surfaces with the generator rotor; the depended wheels, the connecting shafts and the bevels rotate around corresponding rotating shafts, when a force is applied to the left and right depended wheels in a clamping manner, the two depended wheels are simultaneously contacted with two sides of the wheel hub, the left and right depended wheels transfer the braking friction torque to the generator rotor through the left and right bevels respectively, a contact force of the depended wheels and the wheel hub is controlled so as to control the size of a braking force and change the power generation capacity of a generator. The braking generator with the structure provided by the invention is great in braking force and high in generation power, and does not damage tires; and the endurance mileage of an electric bicycle and an electric tricycle is improved, and the advantages are more obvious when the braking friction power generation system is applied in ramp mountainous areas.
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Description

technical field

[0001] The invention relates to the technical field of brake friction power generation, in particular to a brake friction power generation system on low-power electric vehicles. Background technique

[0002] Braking friction power generation is to convert the braking friction into the electromagnetic force of the generator for power generation, and convert the braking energy into electrical energy. The vehicle speed is controlled by controlling the magnitude of the braking friction force, which is related to the positive pressure on the friction surface; when the braking friction force is transmitted to the generator rotor, the braking friction force is proportional to the generator torque.

[0003] Braking power = braking friction * running speed.

[0004] Braking friction is related to factors such as load, slope, and speed decrement.

[0005] For an electric vehicle, assuming that the required braking friction force is 2000 Newtons and the vehicle is tra...

Claims

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