TWM606931U - Pedaling frequency driving control system of electric-assisted bicycle - Google Patents

Abstract

This application proposes an electric-assisted bicycle cadence drive control system, which includes a cadence sensor, a signal input interface and a controller module. The cadence sensor is used to sense and generate a cadence sensing signal, and the signal input interface is used for In order to generate preset mode information, the preset mode information corresponds to the preset assist control signal, the controller module is used to adjust the preset assist control signal according to the cadence sensing signal to generate the first adjustment assist control signal, and the first The output boost corresponding to the adjusted boost control signal is different from the output boost corresponding to the preset boost control signal. In this way, the electric assisted bicycle can fine-tune the output boost of the preset mode information according to the user's cadence in real time, which can not only optimize the user's experience, but also achieve the purpose of energy saving and power saving.

Description

Electric-assisted bicycle cadence driving control system

The new technical field relates to a control system for an electric-assisted bicycle, especially a cadence drive control system for an electric-assisted bicycle.

Generally speaking, an electric assisted bicycle is a bicycle that uses the motor output power to assist the rider to exert force. When the rider steps on, the electric assisted bicycle uses the rider's pedaling as an enabling signal to drive the motor to output power.

However, riders’ daily physical status and usage requirements (such as commuting or exercise) are different, and the road conditions are also various. Therefore, how to effectively provide the most appropriate output assistance based on different conditions or needs One of the main development directions of the field.

In order to provide the most appropriate output assist, the main purpose of this application is to provide an electric-assisted bicycle cadence drive control system, which is used to fine-tune the output of the preset pedaling mode according to the cadence generated by the user pedaling the electric-assisted bicycle in real time Power assistance can not only optimize the user's riding experience, but also achieve the purpose of energy saving and power saving.

The main technical means adopted to achieve the above objective is to make the aforementioned electric-assisted bicycle cadence drive control system include a cadence sensor, a signal input interface, and a controller module. The cadence sensor is used to sense And generate a cadence sensing signal, the signal input interface is used to generate a preset mode information, the preset mode information corresponds to a preset boost control signal, the controller module and the cadence sensor and the signal The input interface is electrically connected to adjust the preset boost control signal according to the cadence sensing signal to generate a first adjustment boost control signal, and the output boost corresponding to the first adjustment boost control signal and the preset boost control signal The corresponding output boost is different.

With the above structure, the controller module is not only enabled by the cadence sensing signal and the preset mode information and generating the preset boost control signal, but also used to adjust the preset boost according to the cadence sensing signal The control signal generates a first adjustment boost control signal, and the output boost corresponding to the first adjustment boost control signal is different from the output boost corresponding to the preset boost control signal. In this way, the electric assisted bicycle can fine-tune the output boost of the preset mode information according to the user's cadence in real time, which can not only optimize the user's experience, but also achieve the purpose of energy saving and power saving.

For a schematic diagram of an embodiment of an electric-assisted bicycle cadence drive control system 1 of the present application, please refer to FIG. 1, which at least includes a controller module 10, a cadence sensor 20, a vehicle speed sensor 30, and a signal Input interface 40 and a motor module 90.

The cadence sensor 20 can be installed on the crankshaft of the electric-assisted bicycle to sense the cadence generated when a user steps on the pedal of the electric-assisted bicycle, and generate a corresponding cadence sensing signal .

In one embodiment, the cadence sensor 20 is an external cadence sensor, and the application is not limited thereto.

The signal input interface 40 is used to generate a control signal corresponding to the user's operation. The control signal is, for example, a preset mode information. The preset mode information is the riding mode selected by the user, and different riding modes. Corresponding to different preset output assist.

In one embodiment, the riding mode may include a sports mode, a general mode, and an energy-saving mode, wherein the sports mode, the general mode, and the energy-saving mode respectively correspond to preset preset assist control signals, and the preset The boost control signal is a PWM control signal sent to the motor module, and the preset output boosts corresponding to the preset boost control signals are different from each other, and the preset output boosts vary in order from large to small.

In one embodiment, the riding mode may further include an off mode. In this mode, no default riding mode will be set, and no PWM signal will be generated. In other words, the user uses his own pedaling force to activate The electric assisted bicycle.

The number of the riding modes mentioned above is only for illustration and not for limiting this application.

In one embodiment, the signal input interface 40 can be a touch screen, and is implemented on the faucet of the electric assisted bicycle. The user can input the control signal by clicking on the operation interface displayed on the touch screen , And this application is not limited by this.

In another embodiment, the signal input interface 40 can be a physical button or switch, and is provided on the faucet or handle of the electric assist bicycle. In this embodiment, the signal input interface 40 can be one or more And this application is not limited by this.

The vehicle speed sensor 30 is arranged on the tire frame of the electric-assisted bicycle (for example, front fork and/or chainstay), and is used to sense the tire speed of the electric-assisted bicycle in real time to determine the real-time vehicle speed and generate Corresponds to a vehicle speed sensing signal.

In one embodiment, the vehicle speed sensor 30 is, for example, a non-magnetic speed sensor, and the application is not limited thereto.

The controller module 10 is electrically connected to the cadence sensor 20, the vehicle speed sensor 30, and the signal input interface 40, and is used to receive the cadence sensor signal, the control signal, and the vehicle speed sensor signal , And used to generate a PWM control signal for driving the motor module 90 of the electric-assisted bicycle, whereby the motor module 90 can output the corresponding output boost according to the PWM control signal. Furthermore, the controller module 10 is used to determine whether the user is pedaling according to the cadence sensing signal, when the controller module 10 determines that the user is pedaling according to the cadence sensing signal , The controller module 10 obtains the preset mode information according to the control signal. The controller module 10 further determines according to the cadence sensing signal that the output boost corresponding to the user’s current cadence is less than, equal to or greater than the preset output boost corresponding to the preset mode information. If the output boost corresponding to the current cadence is less than or greater than the preset output boost corresponding to the preset mode information, the controller module 10 adjusts the preset boost control signal corresponding to the preset mode information to generate a The first adjustment boost control signal, and the first adjustment boost control signal is output to the motor module 90 as the PWM control signal, and vice versa, the preset boost control signal corresponding to the preset mode information is generated as the PWM control signal output To the motor module 90, the output boost corresponding to the first adjustment boost control signal is different from the output boost corresponding to the preset boost control signal.

For example, when the output boost corresponding to the user's cadence is less than the preset output boost corresponding to the preset mode information, the controller module 10 adjusts the preset boost control signal and generates an adjusted The first adjustment boost control signal. In this embodiment, the output boost corresponding to the first adjustment boost control signal is smaller than the output boost corresponding to the preset boost control signal, so as to quickly reduce the output boost, which the user will not feel When there is too much output boost and can be easily stepped on, the motor module 90 can reduce the extra output boost, effectively achieving the purpose of energy saving and power saving. When the output boost corresponding to the user's cadence is greater than the preset output boost corresponding to the preset mode information, the controller module 10 makes the output boost corresponding to the first adjustment boost control signal greater than the preset output boost The output boost corresponding to the boost control signal can effectively assist the user to step on and achieve the purpose of optimizing the user's experience.

In one embodiment, the controller module 10 further receives the vehicle speed sensing signal in real time to monitor the real vehicle speed to determine whether to continue to increase the output boost.

In one embodiment, the motor module 90 can be realized by a front hub motor module or a rear hub motor module, and the application is not limited thereto.

In one embodiment, the boost difference between the output boost of the first adjusted boost control signal and the output boost of the preset boost control signal can be adjusted according to actual needs, and the size of the boost difference is not limited in this application.

In this way, the electric assisted bicycle can instantly fine-tune the output boost of the preset mode information according to the user's cadence, which not only optimizes the user's experience, but also achieves the purpose of energy saving and power saving.

Further, in order to illustrate the controller module 10, please refer to FIG. 2. The controller module 10 further includes a microcontroller 11 and a PWM signal generating unit 12, and the microcontroller 11 is used to receive the aforementioned control Signal, the cadence sensing signal, and the vehicle speed sensing signal, and the PWM signal generating unit 12 is controlled to output the corresponding PWM control signal according to the received control signal, the cadence sensing signal, and the vehicle speed sensing signal.

In one embodiment, the PWM signal generating unit 12 can be realized by a control chip including a PWM circuit, and the application is not limited thereto.

For a schematic diagram of another embodiment of the electric-assisted bicycle cadence drive control system of the present application, please refer to FIG. 3. The difference between FIG. 3 and FIG. 1 is that the electric-assisted bicycle cadence drive control system 1'further includes a three-axis sensor测器50. The three-axis sensor 50 is configured on the electric assisted bicycle, and is used to sense the gravity change on the three-axis and generate corresponding three-axis sensing signals.

In this embodiment, the controller module 10 is further used to receive the three-axis sensing signal, and because uphill, flat road or downhill will cause gravity changes, the controller module 10 can be based on the received three-axis sensing signal. The axis sensing signal changes to determine whether the current road condition is uphill, flat road or downhill. The controller module 10 further determines whether to generate a second adjustment assist control signal based on the three-axis sensing signal. When the controller module 10 determines that the current road condition is uphill or downhill according to the three-axis sensing signal, the controller module 10 adjusts the preset power assist control signal or the first adjusted power assist control signal to the second The second adjustment assist control signal, and the second adjustment assist control signal is output to the motor module 90 as the PWM control signal.

Further, when the controller module 10 determines that the current road condition is uphill according to the three-axis sensing signal, the controller module 10 adjusts the preset power assist control signal or the first adjustment assist control signal, and generates an adjustment After the second adjustment boost control signal, in this embodiment, the output boost corresponding to the second adjustment boost control signal is greater than the preset boost control signal or the output boost corresponding to the first adjustment boost control signal. When the controller module 10 determines that the current road condition is downhill based on the three-axis sensing signal, the controller module 10 adjusts the preset power assist control signal or the first adjusted power assist control signal, and generates an adjusted second 2. Adjust the boost control signal. In this embodiment, the output boost corresponding to the second adjustment boost control signal is less than the preset boost control signal or the output boost corresponding to the first adjustment boost control signal.

Thereby, the electric assisted bicycle can instantly adjust the output boost of the preset mode information according to the user's cadence and road conditions, which not only optimizes the user's experience, but also achieves the purpose of energy saving and power saving.

The electric-assisted bicycle cadence drive control system can also operate in a lead assist mode. The control signal may be a lead assist signal. The controller module 10 can receive the lead assist signal through the signal input interface 40 and execute the lead assist mode, and generate a corresponding lead assist control signal, and then The lead assist control signal is output to the motor module 90 as the PWM control signal, wherein the output assist corresponding to the lead assist control signal is less than the preset assist control signal, the first adjustment assist control signal, and the second adjustment The boost control signal or the output boost corresponding to the user's pedaling. In this way, the electric assisted bicycle can instantly output power assistance when the user is leading the bicycle, assisting the user to move the bicycle while optimizing the user's experience.

For example, when the electric-assisted bicycle is loaded with a large number of or large objects, and the road conditions are not suitable for riding (such as uneven roads or steep slopes), the user can enable the drive assist mode to make the electric-assisted bicycle output The corresponding booster assists the user to move the car.

In one embodiment, the pull assist mode can be implemented in the electric-assisted bicycle cadence drive control system embodiment 1, 1'shown in FIG. 1 or FIG. 3, and the application is not limited thereto.

From the above-mentioned preferred embodiments and application methods of the present application, an operating method of the electric-assisted bicycle cadence drive control system can be summarized, which is mainly to make the controller module 10 at least interact with the cadence sensor 20 and the vehicle speed The sensor 30 and the signal input interface 40 are electrically connected. As shown in FIG. 4, the method includes the following steps.

In step S110, a cadence sensing signal is obtained. In this step, the controller module 10 receives the cadence sensing signal generated by the cadence sensor 20.

In step S120, it is determined whether the user is stepping. In this step, the controller module 10 determines whether the user is currently riding the electric-assisted bicycle according to the cadence sensing signal. When the determination is yes, proceed to step S130, otherwise, end the process. When the controller module 10 determines that the user is not pedaling according to the cadence sensing signal, that is, the user is not riding the electric assisted bicycle or not pedaling, so it does not need to output power assistance, so it ends This process.

Step S130: Obtain preset mode information. In this step, the controller module 10 can receive the control signal input by the user through the signal input interface 40, the control signal includes the preset mode information, and then step S140 is performed.

In step S140, it is determined whether to adjust the preset output boost according to the cadence sensing signal. In this step, the controller module 10 further determines based on the cadence sensing signal that the output boost corresponding to the user’s current cadence is less than, equal to or greater than the preset output boost corresponding to the preset mode information. When the output boost corresponding to the user's current cadence is less than or greater than the preset output boost corresponding to the preset mode information, step S150 is performed, otherwise, step 170 is performed.

In step S150, a first adjusted boost control signal is generated according to the cadence sensing signal and the preset boost control signal. In this step, since the controller module 10 has determined that the output boost corresponding to the user’s current cadence is less than or greater than the preset output boost corresponding to the preset mode information, the controller module 10 adjusts the The preset power assist control signal corresponding to the preset mode information generates the first adjustment power assist control signal. In one embodiment, when the output boost corresponding to the user's cadence is less than the preset output boost corresponding to the preset mode information, the controller module 10 adjusts the preset boost control signal and generates the adjusted The output boost corresponding to the first adjustment boost control signal is less than the output boost corresponding to the preset boost control signal. In one embodiment, when the output boost corresponding to the user's cadence is greater than the preset output boost corresponding to the preset mode information, the controller module 10 makes the output corresponding to the first adjustment boost control signal The boost is greater than the output boost corresponding to the preset boost control signal.

In step S160, the first adjustment boost control signal is output to the motor module 90 as a PWM control signal. In this step, the controller module 10 transmits the first adjustment assist control signal to the motor module 90, so that the motor module 90 generates a corresponding output assist according to the first adjustment assist control signal. After finishing step S160, return to step S110 to continue this process.

In step S170, the preset boost control signal is output to the motor module 90 as the PWM control signal. Since the judgment in step 140 is no, that is, the output boost corresponding to the user's cadence is equal to the preset output boost corresponding to the preset mode information, so the controller module 10 does not need to adjust the output boost of the motor module 90 Therefore, the preset power assist control signal corresponding to the preset mode information is output to the motor module 90 as the PWM control signal. After finishing step S170, return to step S110 to continue the process.

Thereby, the electric assisted bicycle can adjust the output boost of the preset mode information according to the user's cadence in real time, which not only optimizes the user's experience, but also achieves the purpose of energy saving and power saving.

From the above-mentioned preferred embodiments and application methods of the present application, another operating method of the electric-assisted bicycle cadence drive control system can be summarized. The controller module 10 is further electrically connected with a three-axis sensor 50, as shown in FIG. 5 Shown. In FIG. 5, steps S110 to S150 are the same as those in FIG. 4, so they will not be described in detail below. The difference between FIG. 5 and FIG. 4 is that the method further includes the following steps.

Step S180: It is judged whether the road condition is a flat road. In the embodiment of FIG. 5, after performing step S140 or S150, step S180 is further performed. The controller module 10 further determines whether the road condition is based on the three-axis sensing signal generated by the three-axis sensor 50 If the road is flat, when it is judged as no, go to step S190, otherwise, go to step S210.

In step S190, a second adjustment assist control signal is generated according to the three-axis sensing signal. In this step, since the controller module 10 judges that the road condition is not a flat road in step S180, the controller module 10 will generate a second adjustment assist control signal according to the three-axis sensing signal. In one embodiment, when the controller module 10 determines that the current road condition is uphill based on the three-axis sensing signal, the controller module 10 adjusts the preset assist control signal or the first adjustment assist control signal, A second adjusted boost control signal is generated after adjustment, and the output boost corresponding to the second adjustment boost control signal is greater than the preset boost control signal or the output boost corresponding to the first adjustment boost control signal. When the controller module 10 determines that the current road condition is downhill based on the three-axis sensing signal, the controller module 10 adjusts the preset power assist control signal or the first adjusted power assist control signal, and generates an adjusted second 2. Adjust the boost control signal, and the output boost corresponding to the second adjustment boost control signal is less than the preset boost control signal or the output boost corresponding to the first adjustment boost control signal.

In step S200, the second adjustment boost control signal is output to the motor module 90 as a PWM control signal. In this step, the controller module 10 transmits the second adjusted boost control signal to the motor module 90, so that the motor module 90 generates a corresponding output boost according to the second adjusted boost control signal. After finishing step S200, return to step S110 to continue this process.

In step S210, the preset boost control signal or the first adjustment boost control signal is output to the motor module 90 as the PWM control signal. Since the determination in step 180 is no, that is, the road condition is flat, the controller module 10 does not need to further adjust the output boost of the motor module 90 according to the road condition, so the preset boost control signal of step S140 or step S150 Or the first adjustment boost control signal is output to the motor module 90 as the PWM control signal. After finishing step S210, return to step S110 to continue the process.

From the above-mentioned preferred embodiments and application methods of the present application, another operation method of the cadence driving control system of the electric assisted bicycle can be summarized, as shown in FIG. In FIG. 6, steps S110 to S170 are the same as those in FIG. 4, so they will not be described in detail below. The difference between FIG. 6 and FIG. 4 is that FIG. 6 further includes the following steps.

In step S121, it is determined whether a lead assist signal is obtained. After the determination in step 120 is no, proceed to step S121. In this step, the controller module 10 determines whether the driving assistance signal is received by the signal input interface 40, and when the determination is yes, proceed to step S123, otherwise, end Process.

In step S123, the lead assist control signal is output to the motor module 90 as a PWM control signal. In this step, since the controller module 10 determines that it receives the lead assist signal, it means that the user chooses to execute the lead assist mode, so the controller module 10 generates the lead assist control signal, and The lead assist control signal is output to the motor module 90 as a PWM control signal, so that the motor module 90 generates a corresponding output assist according to the lead assist control signal. After completing step S123, return to step S110.

For example, when the user rides the electric-assisted bicycle and cannot continue pedaling (for example, the road condition is too steep), the controller module 10 will determine that the user stops pedaling according to the cadence sensing signal. The motor module 90 stops outputting assist, which causes the user to lose the output assist of the motor module 90, making it more difficult to continue pedaling. Therefore, the user can enable the lead assist mode at this point, so that the motor module 90 outputs assist according to the lead assist control signal to assist the user to continue pedaling. Once the controller module 10 again determines that the user is in the pedaling state, the controller module 10 again causes the motor module 90 to output according to the preset according to the aforementioned process (steps S110 to S170 as shown in FIG. 4) The boost or the first adjusted boost control signal outputs boost. Thereby, the lead assist mode not only assists the user to lead the movement when the user is not riding, but also prevents the motor module 90 from the cadence sensing signal when the user cannot continue pedaling The output assist is provided by the limitation of the electric-assisted bicycle, which effectively improves the convenience of the electric assisted bicycle in use.

In an embodiment, steps S90 and S100 can also be implemented in the embodiment of FIG. 6, and the application is not limited thereto. In one embodiment, the above steps S121 and S123 can also be implemented in the embodiment of FIG. 5, as shown in FIG. 7, and the steps are the same as steps S100 to S200 in FIG. 5 and steps S121 to S123 in FIG. 6 , So it will not be repeated below, and this application is not limited by this.

In summary, the electric-assisted bicycle cadence drive control system of the present application can not only output boost by the preset pedaling mode, but also can fine-tune the preset pedaling mode in real time according to the cadence generated by the user pedaling the electric-assisted bicycle The output boost of power can not only optimize the user experience when riding, but also achieve the purpose of energy saving and electricity saving.

1. 1’: Electric-assisted bicycle cadence drive control system 10: Controller module 11: Microcontroller 12: PWM signal generating unit 20: Cadence sensor 30: Vehicle speed sensor 40: Signal input interface 50: Three-axis sensor 90: Motor module S110~S210: steps

Fig. 1 is a schematic diagram of an embodiment of an electric-assisted bicycle cadence drive control system according to an embodiment of the present application; Figure 2 is a schematic diagram of an embodiment of a controller module according to an embodiment of the present application; Fig. 3 is a schematic diagram of another embodiment of an electric-assisted bicycle cadence drive control system according to an embodiment of the present application; 4 is a schematic flow chart of an operation method of an electric-assisted bicycle cadence drive control system according to an embodiment of the present application; 5 is a schematic diagram of another flow chart of the operation method of the electric-assisted bicycle cadence drive control system according to an embodiment of the present application; FIG. 6 is a schematic diagram of another flow chart of the operation method of the electric-assisted bicycle cadence drive control system according to an embodiment of the present application; and FIG. 7 is a schematic diagram of another flow chart of the operation method of the electric-assisted bicycle cadence drive control system according to an embodiment of the present application.

1: Electric assisted bicycle cadence drive control system

10: Controller module

20: Cadence sensor

30: Vehicle speed sensor

40: Signal input interface

90: Motor module

Claims (9)

An electric assisted bicycle cadence driving control system, which includes: A cadence sensor for sensing and generating a cadence sensing signal; A signal input interface for generating a preset mode information corresponding to a preset assist control signal; and A controller module, electrically connected to the cadence sensor and the signal input interface, adjusts the preset boost control signal according to the cadence sense signal to generate a first adjustment boost control signal, the first adjustment boost The output boost corresponding to the control signal is different from the output boost corresponding to the preset boost control signal. According to the electric-assisted bicycle cadence driving control system according to claim 1, the controller module is used for transmitting the first adjusted assist control signal to a motor module. The electric-assisted bicycle cadence drive control system according to claim 1, further comprising a three-axis sensor for generating a three-axis sensing signal, and the controller module is electrically connected to the three-axis sensor , The controller module adjusts the first adjustment boost control signal according to the three-axis sensing signal to generate a second adjustment boost control signal, the output boost corresponding to the second adjustment boost control signal and the first adjustment boost control signal The corresponding output boost is different. According to the electric-assisted bicycle cadence driving control system according to claim 3, the controller module is used to transmit the second adjusted assist control signal to a motor module. For the electric-assisted bicycle cadence drive control system according to any one of claim 1 or 3, the controller module is used to receive a lead assist signal and generate a corresponding lead assist control signal, the lead assist control The output boost corresponding to the signal is less than the output boost of the preset boost control signal, the first adjustment boost control signal, and the second adjustment boost control signal. According to the electric-assisted bicycle cadence driving control system of claim 3, the controller module includes a microcontroller and a PWM signal generating unit, the microcontroller is electrically connected to the PWM signal generating unit, and the microcontroller The device is used for causing the PWM signal generating unit to generate the preset assist control signal, the first adjustment assist control signal, and the second adjustment assist control according to the cadence sensing signal, the preset mode information, and the three-axis sensing signal The PWM control signal of the signal. The electric-assisted bicycle cadence drive control system according to claim 1, wherein the preset mode information is a sports mode, a normal mode, or an energy-saving mode, and the sports mode, the normal mode, and the energy-saving mode correspond to The preset output assist changes in order from large to small. The electric-assisted bicycle cadence driving control system according to claim 1, wherein the signal input interface is a touch screen, a physical button or a switch. The electric-assisted bicycle cadence drive control system according to any one of claim 2 or 4, wherein the motor module is a front hub motor module or a rear hub motor module.

Images