TWM541979U - Electric assisted bicycle and drive system for electric assisted bicycle - Google Patents

Description

Electric assisted bicycle and drive system for electric assisted bicycle

This creation relates to a bicycle, in particular to a power-assisted bicycle and a drive system for a power-assisted bicycle.

Bicycles are commonly used by Chinese people. Riding bicycles not only saves energy, but also reduces carbon and sports. There are many types of bicycles sold in the market. Among them, the electric assist bicycles that travel through the motor-assisted bicycles gradually break through technical problems (for example, poor endurance, insufficient driving force, etc.) as the technology advances, and thus emerge in the market.

Electric assisted bicycles usually have pedals that are powered by humans and the motor is used as an aid. In addition, the driving mode of the existing electric assist bicycle is assisted by the motor according to the detected torque. For example, when the electric assisted bicycle is traveling on an uphill section, the electric assisted bicycle detects insufficient torque to cause the motor to provide auxiliary power. When the electric assist bicycle is driving on a downhill section, the motor stops providing auxiliary power.

On the other hand, cycling is also a kind of aerobic exercise, and more and more people will choose to ride a bicycle to achieve the purpose of competition training, weight control or daily exercise. Some people or athletes even observe the physiological state during exercise to assess whether the current exercise meets the intended purpose of exercise. However, for the conventional driving method of the aforementioned electric assist bicycle, the user can only adjust the output situation by himself. In an attempt to make the physiological state meet the intended purpose of exercise. That is to say, there is currently no simple and convenient driving method to assist the user in achieving the purpose of the exercise.

In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a power-assisted bicycle and a driving system for the electric-assisted bicycle, which can assist the user to achieve the predetermined purpose of motion and improve the safety of driving downhill.

In order to achieve the above object, the present invention provides a driving system for a power-assisted bicycle, the power-assisted bicycle including a motor, and the driving system includes a physiological sensing device and a control device; the physiological sensing device includes a heart rate sense The heart rate sensor is coupled to the heart rate sensor, and the heart rate sensor senses a heart rate value, and the transmission unit transmits the heart rate value; and the control device includes a receiving unit, and a processing unit is coupled to the The receiving unit and the gravity sensor are coupled to the processing unit, the receiving unit receives the heart rate value, the gravity sensor senses the front and rear tilt state of the power assisted bicycle, and the processing unit is based on the heart rate value and before and after The tilt state determines whether or not the motor of the electric assist bicycle is driven.

The present invention further provides a power-assisted bicycle, which is adapted to be connected to a physiological sensing device having a heart rate sensor for sensing a heart rate value, and the power-assisted bicycle includes a vehicle body And a control device; the vehicle body includes a frame, and a motor is disposed on the frame, the motor is used to drive the electric auxiliary bicycle; the control device is disposed on the frame and includes a receiving unit and a processing unit coupling Connected to the receiving unit, and a gravity sensor coupled to the processing unit, the receiving unit receives the heart rate value, the gravity sensor senses the front and rear tilting state of the power assisted bicycle, and the processing unit is based on the heart rate value and The front and rear tilt states determine whether or not to drive the motor.

The heart rate value is one of the indicators for evaluating the physiological state of the exercise, and the present invention is to evaluate the heart rate value of the user, and at the same time, to detect the front and rear tilt state of the electric assist bicycle to know whether the electric assist bicycle is driving on a downhill road section. To determine whether to allow the motor to provide auxiliary power to achieve proper riding assistance.

1‧‧‧Drive system

10‧‧‧Physical sensing device

11‧‧‧ heart rate sensor

13‧‧‧Transportation unit

30‧‧‧Power assisted bicycle

31‧‧‧ body

33‧‧‧ frame

35‧‧‧ wheels

37‧‧‧ pedal

39‧‧‧ seats

41‧‧‧ handlebars

43‧‧‧Motor

45‧‧‧Battery

50‧‧‧Control device

51‧‧‧ Receiving unit

53‧‧‧Processing unit

55‧‧‧Gravity Sensor

57‧‧‧Input unit

59‧‧‧Display unit

60‧‧‧ mobile devices

61‧‧‧Communication unit

63‧‧‧Second processing unit

1 is a schematic view of a power assisted bicycle of a preferred embodiment of the present invention.

Figure 2 is a block diagram of some of the components of the drive system of a preferred embodiment of the present invention.

Referring to FIGS. 1 and 2, the drive system 1 of the preferred embodiment includes a physiological sensing device 10, a power assisted bicycle 30, and a mobile device 60.

The physiological sensing device 10 can be a wearable device such as a smart watch or a wristband. The physiological sensing device 10 includes a heart rate sensor 11 and a transmission unit 13 coupled to the heart rate sensor 11 . The heart rate sensor 11 can sense a user's heart rate value by detecting blood pulsation, electrocardiographic pulse signals, and the like. The transmission unit 13 can be a wireless transmitter with wireless communication technologies such as WiFi, near field communication or Bluetooth, and the transmission unit 13 is used to transmit the heart rate value.

The power-assisted bicycle 30 includes a vehicle body 31 and a control device 50.

The right side of the first figure is the front side of the electric assist bicycle 30. The vehicle body 31 includes a frame 33. The two wheels 35 are disposed below the front and rear sides of the frame 33, and the two pedals 37 are disposed on the left and right sides of the frame 33. Two sides, a seat 39 is disposed above the frame 33, and a handlebar 41 is disposed above the front side of the frame 33. A motor 43 is provided to the frame 33 for driving the power-assisted bicycle 30, and a battery 45 is provided to the frame 33 to supply power to the motor 43.

The control unit 50 includes a receiving unit 51, a processing unit 53 coupled to the receiving unit 51, a gravity sensor 55 coupled to the processing unit 53, an input unit 57 coupled to the processing unit 53, and a display unit 59. The processing unit 53 is coupled. The receiving unit 51 can be provided with a wireless receiver corresponding to the communication technology used by the transmission unit 13, and the receiving unit 51 can receive the heart rate value through a wireless manner. The processing unit 53 can be a processing unit having functions such as signal processing, motor control, etc., such as a central processing unit, a chip or a microcontroller, and the processing unit 53 can send a control signal (for example, control output power, rotational speed, output torque, etc.) ) to the motor 43. The gravity sensor 55 can sense the front and rear tilting state of the power-assisted bicycle 30 (for example, the acceleration value of a specific axis) by detecting a change in capacitance, a piezoelectric effect, or the like. The input unit 57 can be a capacitive, resistive or the like type of touch panel, a button or a keyboard, etc., and the input unit 57 is configured to receive input information obtained by a user's input operation. The display unit 59 can be a video display unit of the type such as LCD or LED.

The mobile device 60 can be a portable device such as a smart phone or a tablet. The mobile device 60 includes a communication unit 61 and a second processing unit 63 coupled to the communication unit 61. The communication unit 61 may be provided with a wireless transceiver corresponding to the communication technology used by the transmission unit 13 and the receiving unit 51. The second processing unit 63 can be a processing unit having functions such as signal processing, data statistics, and the like, such as a central processing unit, a chip, or a microcontroller. The second processing unit 63 can receive the physiological sensing through the communication unit 61. The heart rate value of device 10 is forwarded to control device 50.

It should be noted that, in the present embodiment, the control device 50 is disposed on the handlebar 41 to facilitate display of information through the display unit 59 or to receive input operations of the user through the input unit 57, but the transmission unit 13 and the The receiving unit 51 belongs to the wireless communication unit, so the control device 50 can view He needs to be located at any other location on the frame 33. In addition, the mobile device 60 is used as a repeater for transferring the heart rate between the physiological sensing device 10 and the control device 50. However, in other embodiments, the control device 50 can The physiological sensing device 10 is directly connected to receive the heart rate value; or the physiological sensing device 10 can be disposed on the frame 33, and the transmitting unit 13 and the receiving unit 51 can communicate in a wired manner. Communication unit. On the other hand, the control device 50 in this embodiment is integrated with the vehicle body 31. However, in other embodiments, the control device 50 is separable and is a separate device.

The foregoing description is related to the structure and component design of the drive system 1, and the operation flow of the drive system 1 will be further described below.

The transmission unit 13 of the physiological sensing device 10 transmits the heart rate value detected by the heart rate sensor 11 to the mobile device 60, and the mobile device 60 can transfer the heart rate value to the control device 50. . At the same time, the processing unit 53 can sense the front and rear tilting state of the electric assist bicycle 30 through the gravity sensor 55.

It should be noted that the heart rate value and the front and rear tilt states may have excessive transient variability, and the processing unit 53 may moderately ignore the excessively large value or calculate the value within a specific time (for example, 3, 5, 10 seconds, etc.). The average.

When the processing unit 53 of the control device 50 receives the heart rate value, the processing unit 53 can determine whether to drive the motor 43 of the electric assist bicycle 30 according to the heart rate value and the front and rear tilt states. In the embodiment, the processing unit 53 compares the heart rate value with a motion demand value to obtain a comparison result, and the processing unit 53 determines whether to drive the motor 43 according to the comparison result. If the comparison result is that the heart rate value is less than the exercise demand value, the processing unit 53 generates a control signal that does not drive the motor 43. And if the comparison result is that the heart rate value is not less than the exercise demand value, the processing unit 53 determines Whether the front and rear tilting state is in compliance with the downhill driving state. For example, the straight forward direction of the power assist bicycle 30 is defined as the Y axis of the gravity sensor 55, and when the processing unit 53 determines that the acceleration value of the gravity sensor 55 on the Y axis is a negative value or less than a specific value. The front and rear tilting state is in accordance with the downhill running state; or, the upper and lower vertical directions of the electric assist bicycle 30 are defined as the Z axis of the gravity sensor 55, when the processing unit 53 determines that the gravity sensor 55 is When the acceleration value on the Z axis is less than 9.8 meters per second, the front and rear tilt states conform to the downhill traveling state. If the front-rear tilting state conforms to the downhill running state, the processing unit 53 does not drive the motor 43 of the electric assist bicycle 30 to avoid the downhill acceleration driving and increase the danger. On the other hand, if the processing unit 53 determines that the front-rear tilt state does not conform to the downhill traveling state, the processing unit 53 generates a control signal for driving the motor 43, so that the motor 43 assists the electric assist bicycle 30 to travel.

It should be noted that the processing unit 53 may determine that the order of the front and rear tilting state and the heart rate value may be varied. For example, the processing unit 53 may compare the front and rear tilting states without conforming to the downhill driving state. The heart rate value and the exercise demand value; or, the processing unit 53 can simultaneously determine the front and rear tilt state and the heart rate value, and if the front and rear tilt states do not meet the downhill running state and the heart rate value is greater than the motion demand value The motor 43 is driven only. In order to comply with regulations and driving safety, the processing unit 53 also limits the electric bicycle 30 to travel at a specific speed (for example, 15, 20 or 25 kilometers per hour, etc.).

In addition, in this embodiment, the exercise demand value is a specific percentage of the maximum heart rate value of the user (for example, 220-age, 208-(0.7*age), or 205-(0.5*age)), but other In an embodiment, the motion demand value may also be adjusted by the input unit 57 receiving a setting information for changing the motion demand value. The processing unit 53 further receives a motion mode information through the input unit 57, and the processing unit 53 determines the motion demand value according to the motion mode information, and the motion mode information is used to indicate One of multiple motion modes. For example, the exercise modes include a weight control mode, a game training mode, and an aerobic exercise mode, and the motion modes respectively correspond to 60%, 90%, and 80% of the maximum heart rate value. That is to say, the user can select a sport mode, and the control device 50 determines whether the user's current heart rate value needs to provide auxiliary power through the motor 43 according to the sport demand value corresponding to the sport mode. If the heart rate value exceeds the exercise demand value, the motor 43 provides auxiliary power in a timely manner to reduce the burden on the user and may cause the heart rate value to decrease. If the heart rate value falls below the exercise demand value, the motor 43 does not provide auxiliary power, and the user needs to speed up the pedaling speed to increase the heart rate value. By providing the riding assistance in time according to the heart rate value, the power assisted bicycle 30 can easily control the heart rate value to be maintained within a specific range (for example, ±5%, ±10%, etc.) of the exercise demand value. In order to achieve the intended purpose of exercise.

The processing unit 53 can also receive an evaluation information through the input unit 57 after the end of the user's motion, and the processing unit 53 adjusts the motion demand value according to the evaluation information, and the evaluation information is used to indicate Whether the exercise demand value meets a user's needs. For example, the processing unit 53 displays, via the display unit 59, whether the motion demand value meets the question message of the user's request (eg, too high, too low, or satisfied), and the evaluation information is transmitted through the input unit 57. Receive a response to the question message. If the evaluation information is too high, the processing unit 53 lowers the exercise demand value. And if the evaluation information is too low, the processing unit 53 increases the exercise demand value.

On the other hand, the processing unit 53 can display a warning message through the display unit 59 according to the heart rate value. For example, if the heart rate value exceeds 10% of the exercise demand value, the display unit 59 displays a warning message that "heart rate is too high!". The display unit 59 can also instantly display the current heart rate value of the user and the exercise demand value, so as to facilitate the user to change the strength applied to the two pedals 37. The whole heart rate value. In addition, the mobile device 60 can record historical information related to the heart rate value, and even analyze statistics to facilitate the user to evaluate the exercise situation afterwards.

By the driving method of the above structure, the user can control the motor according to the heart rate value of the user and the front and rear tilt state of the electric assist bicycle 30 in an adaptive and timely manner, as long as the user sets the exercise demand value in advance. 43, not only can assist the user to achieve the intended purpose of exercise, but also enhance the safety of downhill driving.

The above is only the description of the present embodiment, and may not be used to limit the scope of the patent of this creation. Any simple structural retouching or change that has not been removed from the spirit of this creation should still fall within the scope covered by the patent application scope of this creation.

1‧‧‧Drive system

10‧‧‧Physical sensing device

11‧‧‧ heart rate sensor

13‧‧‧Transportation unit

50‧‧‧Control device

51‧‧‧ Receiving unit

53‧‧‧Processing unit

55‧‧‧Gravity Sensor

57‧‧‧Input unit

59‧‧‧Display unit

60‧‧‧ mobile devices

61‧‧‧Communication unit

63‧‧‧Second processing unit

Claims (13)

A drive system for a power-assisted bicycle, the power-assisted bicycle includes a motor, and the drive system includes: a physiological sensing device including a heart rate sensor, and a transmission unit coupled to the heart rate sensor, The heart rate sensor senses a heart rate value, and the transmission unit transmits the heart rate value; and a control device includes a receiving unit, a processing unit coupled to the receiving unit, and a gravity sensor coupled to the processing unit The receiving unit receives the heart rate value, the gravity sensor senses the front and rear tilt state of the power assisted bicycle, and the processing unit determines whether to drive the motor of the electric assist bicycle according to the heart rate value and the front and rear tilt state. The driving system for a power-assisted bicycle according to claim 1, wherein the processing unit compares the heart rate value with a motion demand value to obtain a comparison result, and the processing unit determines whether to drive the power-assisted bicycle according to the comparison result. The motor. The driving system for a power-assisted bicycle according to claim 2, wherein the control device further comprises an input unit coupled to the processing unit, the input unit receives a motion mode information, and the processing unit determines the motion information according to the motion mode information. A motion demand value, wherein the motion mode information is used to indicate one of a plurality of motion modes. The driving system for a power-assisted bicycle according to claim 3, wherein the input unit receives an evaluation information, and the processing unit adjusts the motion demand value according to the evaluation information, wherein the evaluation information is used to indicate whether the exercise demand value is Meet the needs of a user. The driving system for a power-assisted bicycle according to claim 1, wherein the processing unit determines whether the front-rear tilt state conforms to a downhill running state, and if the front-rear tilt state conforms to the downhill running state, the processing unit does not drive. The motor of the electric assisted bicycle. The driving system for a power-assisted bicycle according to claim 1, wherein the control device further comprises a display unit coupled to the processing unit, and the processing unit displays an alert message through the display unit according to the heart rate value. The driving system for a power-assisted bicycle according to claim 1, further comprising: a mobile device, comprising a communication unit, and a second processing unit coupled to the communication unit, wherein the second processing unit transmits the communication unit The heart rate value is forwarded to the control device. A power-assisted bicycle is adapted to be connected to a physiological sensing device having a heart rate sensor for sensing a heart rate value, and the power-assisted bicycle includes: a vehicle body including one a frame, and a motor disposed on the frame, the motor is used to drive the electric assisted bicycle; and a control device disposed on the frame and including a receiving unit, a processing unit coupled to the receiving unit, and a gravity The sensor is coupled to the processing unit, the receiving unit receives the heart rate value, the gravity sensor senses the front and rear tilt state of the power assisted bicycle, and the processing unit determines whether to drive the heart rate according to the heart rate value and the front and rear tilt states. motor. The power-assisted bicycle of claim 8, wherein the processing unit compares the heart rate value with a motion demand value to obtain a comparison result, and the processing unit determines whether to drive the motor according to the comparison result. The power-assisted bicycle of claim 9, wherein the control device further comprises an input unit coupled to the processing unit, the input unit receives a motion mode information, and the processing unit determines the motion demand value according to the motion mode information, The sport mode information is used to indicate one of a plurality of sport modes. The power-assisted bicycle of claim 10, wherein the input unit receives an evaluation information, and the processing unit adjusts the exercise demand value according to the evaluation information, wherein the evaluation information is used to indicate whether the exercise demand value meets a user demand. The power-assisted bicycle according to claim 8, wherein the processing unit determines whether the front-rear tilt state conforms to the downhill running state, and if the front-rear tilt state conforms to the downhill running state, the processing unit does not drive the motor. The power-assisted bicycle of claim 8, wherein the control device further comprises a display unit coupled to the processing unit, and the processing unit displays a warning message through the display unit according to the heart rate value.