Brushless motor controller energy feedback for electric bicycle and deceleration method thereof

A technology of electric bicycles and brushless motors, applied in the direction of stopping devices, etc., can solve problems such as loss, storage, and lack of energy feedback functions, and achieve the effects of improving driving range indicators, extending service life, and improving reliability
CN1665123AInactive Publication Date: 2005-09-07上海谙乃达实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海谙乃达实业有限公司
Publication Date
2005-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention arranges a control program in MCU in brushless motor controller for an electric bicycle, makes delay sampling of the current in DC bus line by a current sampling delay subprogram, obtains phase current signal outputted by a power circuit, makes closed-loop torque control according to torque instruction and feedback signal of output phase current, regulates the duty factor of PWM signal, and as the MCU receives braking instruction, and outputs braking logic signal that makes AND operation with the PWM signal at the front stage driving part to form braking gate control signal, which controls power amplifying circuit to produce braking torque in the driven motor. And the invention controls the power amplifying circuit to charge the battery, realizing energy feedback, thus improving braking reliability and effectively raising the continuously running mileage index of the whole bicycle for once charging.
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Description

technical field

[0001] The invention relates to an energy feedback and braking method of a brushless motor controller for an electric bicycle. Background technique

[0002] When the existing electric bicycle brakes and brakes, the brushless motor controller for driving does not generate braking torque, and the electric bicycle completely relies on the mechanical braking device to achieve braking, which will seriously affect the service life of the mechanical braking device; on the other hand , the existing electric bicycles do not have the function of energy feedback, the mechanical energy before the bicycle braking can only be converted into heat energy through the friction between the mechanical brake device and the wheel, and can not be converted into electric energy and stored in the battery to improve the continuous driving of the vehicle after one charge Mileage indicator. Contents of the invention

[0003] The purpose of the present invention is to provide a method...

Claims

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