KR20100001761U - Dynamic support a Bicycle device - Google Patents

Abstract

The combination of the auxiliary motor and the one-chip computer control unit that can be used as an additional attachment to a general bicycle combines the speed inertial sensor and automatically adds to the pedal operation when the bicycle user loses power on a slope. It is a device that is configured to operate the brushless motor on the side of the pedal, and uses the rechargeable battery as a power source and receives power between the stator field coil and the permanent magnet, which are powered by the rechargeable battery, without the burden on the bicycle user.

This device obtains auxiliary power on roads where women and others require a lot of power, such as slopes, and can use it in the same way as usual in the normal operation of flat state, so that it can be used without risk and can be prevented from falling down. If the same brake key (braking) is needed, the motor generated by switching the regenerative power generator to the regenerative power is used again as the regenerative power and charged to the battery to recover the energy. Device.

Electric bicycle, auxiliary power unit, motor, regenerative discharge, controller

Description

Bicycle assisted power control unit {Dynamic support a Bicycle device}

Adding external power to the existing bicycle was economical and cost effective, and the inherent advantages of the bicycle were compromised. This design is an auxiliary power device that can be simply applied to existing bicycles. It is a brushless DC motor starting method that generates a momentary pulse power only at the extreme part of the bicycle pedal using the permanent magnet rotor. The electric power device increases energy efficiency by imposing one-chip computer electronic control device to be switched by Hall sensor so as to save electric power energy. Also, by using rear motor as reverse braking device, it automatically converts to regenerative power generating generator. Will be.

When used in parallel by electric motors and manpower in general bicycles, there are various problems in bicycles. Especially, there are problems such as balance start and speed in stop start stop and power, and also the power consumption, motor size, economy, etc. It is a motor that is directly connected to the rear wheel motor and the pedal that has been dissipated, and it is a small size and light weight on the existing bicycle, and it becomes an efficient auxiliary power device that is easily retrofitted in security. The present invention utilizes permanent magnets on the rotating shaft to operate the rear wheel power motor and pedals and the integrated power unit by applying the Burlashless (BLD) DC motor method. It is composed of drive switching method, high-performance permanent magnet (PM) is dividedly arranged on the rotating shaft, and the one-chip computer control device receives the signal from the Hall sensor for detecting the rotation of the rotor and switches it to operate. It is a device that automatically detects and controls motor power control and automatically runs by simple operation of the bicycle user.

In the existing bicycle, the power unit to attach additional power unit is generally driven by the prime mover and the motor, but there are various problems (price, complexity, etc.), the inherent advantages of the bicycle are impaired, and economical and retrofitting structure Due to its complexity, general bicycle users have avoided it. Also, electric bicycles are electric motors, and modification and modification of existing bicycles is not possible with complicated procedures. Products commercialized with electric bicycles also have limited power, efficiency, economy, etc. The benefits are compromised. The bicycle assisted power unit designed to use the bicycle's inherent advantages is possible by simply imposing it in a manner that partially supplements the existing bicycle by excluding the use of a dedicated motor in the past, and uses a new distributed power generation motor on one side of the bicycle pedal. It is simply attached to the surface space and consists of an auxiliary power transmission device, and the rotating shaft motor permanent magnet integrated with the pedal main chain gear is divided into two quarters. The rotor and the stator (induction field) The separate parts are produced separately, so that the bicycle is not modified by using the bicycle space and the pipe support. On the motors imposed on the pedal chain gear shaft, the pedal support of the foot is put on by the start control, and when the motor is rotated, the forward clutch and the vertical actuation are minimized independently of the foot pedal and the motor. This device solves the technical problem of getting instantaneous strong power with a small amount of power so that the position detection problem can be detected by the Hall sensor and controlled by the rotation sensor.

This auxiliary power unit has a permanent magnet as the rotor shaft. It is a brushless method that has high efficiency while minimizing frictional loss. The power unit is symmetrically arranged in a circular mold with permanent magnets (Fig. 3-3) on the front and rear wheel grate parts (Fig. 1-3) of the bicycle, and the driving field induction coil (Fig. 3-8) is mounted on the bicycle body pipe. It is a power unit that is fixed to the support and the permanent magnet rotating body and the rotation sensing hall sensor are symmetrical so that the pulse power is generated by automatic control drive.

In addition, when the foot of the cyclist's foot is pedaled, the force is mechanically transmitted, and when the heel is bent a lot, the kinetic energy of the least leg is transmitted to the pedal to the minimum. It is detected by the pedal position sensor and the one-chip computer is controlled by the driving signal linked with the position sensor so that the power generator generates the instantaneous pulse power.

On the other hand, the computer control device, along with the driving speed inertial sensor that detects when the user's pedaling force is decelerated and decelerates, generates an auxiliary power device on one side of the bicycle pedal part (Fig. 1-8) to control the constant speed driving power. The device (Fig. 1-7) is attached between the body and the pedal, and the motor shaft and pedal levers are moved by the directional clutch gear (Fig. 1-9) without the user using the pedal. The directional gear lever, motor and pedal shaft consist of a montage so that only the electrons are rotated to transfer power to the rear wheels.

By using the brake-less motor (Fig. 1-3), which is the power device for the front and rear wheels of the bicycle, it interlocks with the mechanical brake system and replenishes the capacity of the limited storage battery by recycling the energy generated when braking is required on the downhill road. In order to do this, the motor was converted to power generation and the regenerative power was converted to a boost inverter (Figure 2-10) to impose a current limiter regatta (Figure 2-11).

The present invention combines a power sensor and a motion inertial sensor (Fig. 2-15) with a one-chip computer control device (Fig. 2-5) only when power is insufficient, such as hills, to automatically start or stop the bicycle without any special manual operation. In order to make sure that the power transmission is soft-started, it stops and a control device is provided to supply smoothly.

As the use of bicycles expanded in the high oil price era, various advantages of bicycles, such as green traffic culture development, environmental pollution prevention, and user health improvement, were maintained.In addition, users lacked leg strength or novices and women were shifted to hill roads. Even if the power does not move in case of lack of power, an accident occurs, and long-distance commuting women and others feel the power shortage. As a result, it will be a bicycle for eco-friendly public transportation, designed to be easily attached to the existing general bicycle without using expensive electric bicycles or motorbikes.

When the auxiliary power unit of the present invention is attached to a conventional bicycle, the automatic operation will be described in detail.

When the bicycle auxiliary power unit is additionally attached to the device, it does not interfere with the existing advantages of the bicycle as it is, and the bicycle pedal chain cycle gear is automatically used as the power assist device when the user lacks the power (Fig. 1-7). The vertical position of the pedal, which is the pedal angle at which the power transmission attached to the part is the extreme weakest section (Figures 1-12), where the pedals are more likely to be broken on both sides (Figure 1-12). When positioned in 1, 5-1), the brushless motor of the power unit is activated to generate power. The sensor of the rotating Hall element (Fig. 2-2) receives the signal, and the one-chip computer driver control device (Fig. 2-5) supplies the output signal to the semiconductor (Fig. 2-4) switching FT (Brush) as a power unit. A strong magnetic field is instantaneously generated in the termination magnetic coil (Figures 2-3).

When the bicycle falls most of the time, power transmission is weak and it cannot be progressed. At this time, the speed sensor (FIG. 1-16) and the motion inertial sensor (FIG. 1-15) receive signals from the one-chip computer (FIG. 1-5) automatically. Force is automatically generated by supplying instantaneous pulse power to the motor (Fig. 2-8) according to the internal program setting. In addition, when the user does not need auxiliary power, the power will be turned on and only the foot will operate. In this motor section, it is a brushless type, and the rotor shaft has a strong permanent magnet (Fig. 3-2) symmetrically formed on the circular rotor, and two or more symmetrical configurations to form the field coil inside the motor (Fig. 3-8). , The rotation sensing Hall element (3-10) inverts the sequential polarity and pulse output switching (3-13,14) by time division to increase the efficiency of the motor at the minimum power to change the pulse width You get powerful power controlled by the PWM method (Figs. 3-15, 16).

This rear wheel power generating device Burashless type motor is converted to the generator when used in reverse, and the regenerative power generated by the downhill or when the braking key is used is rectified in the motor field coil (1-3) (Fig. 1-). DC voltage rectified by 7, 8) by the braking switch (Figs. 1-9) is stepped up to the AC conversion boosting device (Fig. 1-10) and then rectified to DC voltage again and then the current limiting device (Fig. 1- 11) to protect the battery and to recycle and recharge the lost kinetic energy.

At this time, in order to control the charging load according to the amount of braking key, the control control lever (Fig. 2-12) was used together with the burek key lever (Fig. 1-1).

Depending on the braking speed of the bicycle, the regenerative voltage was oscillated with a prevolt inverter with a large change rate of 3v to 20v, rectified by DC, and a limit circuit was imposed to protect the battery from overcharging.

Rechargeable battery is composed of an external charging terminal (Fig. 2-14) to be charged at any place with a constant voltage power supply adapter of mobile attachment and external home electric.

The power assist motor (FIG. 1-8) integrated with the pedal chain gear is miniaturized and lightened, and both pedals are driven by the one-way clutch (FIG. 1-9) while minimizing load disturbance when only the pedal is used as an auxiliary power-free power supply to the existing bicycle. One-way keys are integrally attached to the main shaft (Figures 1-9) to move independently of the electric power motors (Figures 1-8). In addition, the common sense of the user to simplify the maintenance to simplify the maintenance, such as the leakage of rain in rainy weather in a rainproof weathering structure structured fixed field coil (Fig. 2-3) in order to simplify the maintenance for easy maintenance. Rechargeable power supply unit, which is a key unit of WT, is a lightweight and compact Ni-MH battery designed to self-charge with minimum power capacity.

Fig. 1-General Bicycle Fig. 1-1-Adjusters on the Handlebars

Figure 1-2-Bicycle Front Wheel Support Figure 1-3-Motor Integrated with Bicycle Rear Wheel Heel

Figures 1-4-Power Transmission Chain Sections Figures 1-5 1-5-1, 2,-Bicycle Pedal Footrest

Figure 1-6-Bicycle body pillar Figure 1-7-Electric field coil section

Fig. 1-8-Permanent magnet part of the brush motor Fig. 1-9-One-way clutch gear for bicycle pedal

Figure 1-10-Bicycle chain third gear Figure 1-12-Position angle with low force transmission

Figure 1-13-Pedal Support Lever

 Figure-2-One Chip Computer Electrical Control

 Figure 2-1-Permanent Magnet for Power Rotor (PM) Figure 2-2-Hall Element Sensor

Figure 2-3-Electric Field Coil Figure 2-4-Field Coil Power Control Switching FET

Figure 2-5-One chip CPU controller Figure 2-6-Acceleration and deceleration for speed control

Figure 2-7-Surge Voltage Diodes Figure 2-8-Regenerative Power Diode

Figure 2-9-Regenerative power recovery switch during braking Figure 2-10-Inverter for regenerative power conversion

Figure 2-11-Regenerative power DC converter Figure 2-12-Braking amount variable

Figure 2-13-Rechargeable Battery (NI-BATTERY) Figure 2-14-External Charger Terminal

Figure 2-15-Travel inertial sensor Figure 2-16-Speed sensor

Figure -3 ---- motor structure diagram for power

Fig. 3-1 Rotor outline Fig. 3-2 Permanent magnet N pole

Figure 3-3-Permanent magnet part for rotor Figure 3-4-Permanent magnet S pole

Fig. 3-5-Hall element sensor Fig. 3-6-Field coil part for motor

Figure 3- 7-Field core for motor Figure 3- 8-Motor stator field coil

Figure 3- 13-Field coil current supply waveform Figure 3- 10-Field coil time division short pulse

Claims (4)

 Bicycle wheel wheel grate part (Fig. 1-3) with permanent magnets (Fig. 3-2) symmetrically arranged in a circular mold and driving field guide coil (Fig. 3-8) for bicycle body pipe support (Fig. 1-6) Power device configured to automatically drive pulse power by symmetrical rotation of permanent magnet rotor and rotational hall sensor Attach the power generator (Fig. 1-7) between the body and the pedal on one side of the ordinary bicycle pedal part (Fig. 1-8), and the motor shaft and the pedal levers are directional clutch gear (Fig. 1) without the user using the pedal. -9) The power unit consists of a directional gear lever and a motor and pedal axle so that the foot and pedal are fixed and only the motor rotor rotates to transmit power to the rear wheels through the chain gear. Inertial sensor interlocked with position sensor so that power generator generates instantaneous pulse power by detecting by position sensor when pedal position that minimizes transfer of kinetic energy of user's foot in the power unit of paragraph 2 is vertical. ), The one-chip computer (Fig. 2-5) is controlled by the speed sensor (Fig. 2-16) to be sopot start and storm to generate automatic instantaneous pulse power. In conjunction with a mechanical braking system using a brashless motor (Figs. 1-3), which is a power device for wheels, the regenerative power of the motor is converted to a boost inverter (Fig. 2-10) during braking to overcharge the storage battery. Regenerative charging device with a protective legetta (FIG. 2-11) current limiter.

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