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Control method for preventing brake locking in brushless motor controller for electric bicycle

An electric bicycle, brushless motor technology, applied in the direction of the stop device, etc., can solve the problems of inconvenient operation, unsafe and reliable operation of the whole vehicle, etc., and achieve the effect of preventing loss of control and improving reliability and safety.

Inactive Publication Date: 2005-09-07
上海谙乃达实业有限公司
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AI Technical Summary

Problems solved by technology

[0002] The existing brushless motor controllers for electric bicycles do not have the function of Anti-Lock Brake System. When the bicycle is in use, the wheels will lock when braking and the vehicle will slide out of control. This out-of-control phenomenon can only be solved by frequent Control the mechanical brake handle to avoid, the operation is inconvenient, and the operation of the whole vehicle is very unsafe and reliable

Method used

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  • Control method for preventing brake locking in brushless motor controller for electric bicycle
  • Control method for preventing brake locking in brushless motor controller for electric bicycle
  • Control method for preventing brake locking in brushless motor controller for electric bicycle

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Embodiment Construction

[0024] Please refer to the attached figure 1 , 2 shown, with figure 1 Zhongyuan sensor Hall signal input to the control part of the controller, the control part has a peripheral circuit and a single-chip microprocessor MCU, the present invention is attached figure 2 The three-phase neutral line IF in the three-phase power amplifier circuit is connected to a current signal feedback resistor R50, which is fed back to the peripheral circuit of the control part. image 3 The main program is the empty operation loop waiting for interruption, with Figure 4 Assign a block diagram for the interrupt entry, with Figure 5 It is the flow chart of AD sampling interrupt subroutine, attached Figure 6 The flow chart of the current sampling delay subroutine is attached Figure 7 It is the flow chart of the pulse width modulation interrupt subroutine. When each pulse width modulation PWM cycle ends, there is a pulse width modulation interrupt request, enter Figure 7 The pulse width m...

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Abstract

The invention arranges a control program in MCU in brushless motor controller for ordinary electric bicycle, controls the MCU to make zero clearing of the duty factor of a PWM signal by using integral times of PWM cycle as a cycle in the braking state through PWM interrupt subprogram and the PWM signal makes AND operation with a gate control logic signal and intermittently and periodically produces electromagnetic braking torque in the driven motor by the front stage driving control three-phase amplifying circuit. The advantages: the invention realizes the function of preventing the locking of braking on the basis of not adding the hardware cost and can improve the reliability and safety of the whole bicycle.

Description

technical field [0001] The invention relates to an anti-lock brake (Anti-Lock Brake System) control method in a brushless motor controller for an electric bicycle. Background technique [0002] The existing brushless motor controllers for electric bicycles do not have the function of Anti-Lock Brake System. When the bicycle is in use, the wheels will lock when braking and the vehicle will slide out of control. This out-of-control phenomenon can only be solved by frequent Control the mechanical brake handle to avoid, the operation is inconvenient, and the operation of the whole vehicle is very unsafe and reliable. Contents of the invention [0003] The purpose of the present invention is to utilize the single-chip microprocessor MCU in the brushless motor controller for electric bicycles to provide a control method for anti-brake locking. The method is to set a control process in the single-chip microprocessor MCU. The program includes a main program and several subroutine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/24
Inventor 贡俊秦小雷须斌
Owner 上海谙乃达实业有限公司
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