TW201542420A - Method for adjusting modes of pedelec and pedelec system - Google Patents

Abstract

A method for adjusting modes of a pedelec includes a speed sensor sensing a speed of the pedelec, a tilt sensor determining whether the pedelec is in a tilted state, a pedal sensor sensing a rotating speed or a torsion of a pedal, and a control unit determining (1) the speed sensed by the speed sensor being greater than zero, (2) the tilt sensor sensing the pedelec not in the tilted state, and (3) the pedal sensor sensing that the rotating speed of the pedal is zero or the torsion of the pedal is below a default value for a period. When criteria of (1), (2) and (3) are satisfied, the control unit selectively switches the mode of the pedelec to a cruise mode.

Description

Method for adjusting mode of electric bicycle and electric power assisting system

The invention relates to a method for adjusting the mode of an electric bicycle and an electric power assisting system, in particular to a method and an electric power assisting system capable of automatically adjusting the riding mode of the electric bicycle.

Recently, electric power assisting elements (such as motors) equipped with electric pedeles provide additional electric power for the user to ride the electric bicycle to help the user overcome different road conditions. Generally, the electric bicycle provides a plurality of riding modes for the user to select and set the corresponding riding mode according to different road conditions, and when the user selects and sets the corresponding riding mode, the electric bicycle needs the user to Manually select and set the corresponding riding mode. As a result, it is easy for the user to be in danger of manual operation when riding the electric bicycle.

Accordingly, the present invention provides a method and an electric assist system that can automatically adjust the riding mode of an electric bicycle to solve the above problems.

In order to achieve the above object, the present invention discloses a method for adjusting a mode of an electric bicycle, the electric bicycle having a pedal, the method comprising the step of sensing a traveling speed of the electric bicycle with a speed sensor; using a sense of inclination The detector senses whether the electric bicycle is in a down state; uses a pedal sensor to sense a rotation speed of the pedal or a pedal torque value; and uses a control unit to judge the criterion: (1) the speed sensor sense Measuring that the traveling speed of the electric bicycle is greater than zero, (2) the slope sensor senses that the electric bicycle is not in the downhill state, and (3) the pedal sensor senses the pedal for a period of time The rotational speed is zero or the pedal torque value is lower than one The pedal preset value, when the three conditions (1), (2), and (3) are satisfied, the control unit selectively controls the electric bicycle to enter a cruise mode, wherein when the electric assist vehicle enters the cruise mode, the control unit The electric bicycle is controlled to maintain a cruising speed.

According to one embodiment of the present invention, the present invention further provides an electric power assist system including an electric assist bicycle, a speed sensor, a slope sensor, a pedal sensor, and a control unit. The speed sensor is mounted on the electric bicycle to sense a traveling speed of the electric bicycle, and the slope sensor is mounted on the electric bicycle to sense whether the electric bicycle is in a down state, the pedal The sensor is mounted on the electric bicycle to sense a rotation speed of the pedal or a pedal torque value. The control unit is coupled to the speed sensor, the slope sensor and the pedal sensor for determining (1) that the speed sensor senses the speed of the electric bicycle to be greater than zero, (2) The slope sensor senses that the electric bicycle is not in the downhill state and (3) the pedal sensor senses that the pedal has a zero speed or the pedal torque value is lower than a pedal for a period of time The preset value, the control unit selectively controls the electric bicycle to enter a cruise mode when all three conditions (1), (2), and (3) are satisfied, wherein the control unit controls when the electric assist vehicle enters the cruise mode The electric bicycle is maintained at a cruising speed.

In summary, the present invention utilizes a speed sensor, a slope sensor, and a pedal sensor to respectively sense the traveling speed of the electric bicycle, whether the electric bicycle is in a downhill state, and the pedal rotation speed or pedal torque value. Furthermore, the present invention further utilizes the control unit to control whether the electric moped enters the cruise mode according to the traveling speed, whether it is in a downhill state, and the pedal rotation speed or the pedal torque value. Therefore, the electric moped of the present invention can automatically enter the cruise mode without using Manually select and set the cruise mode. In this way, the present invention can reduce the risk of manual operation by the user when riding the electric bicycle. The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention.

30‧‧‧Electric power assist system

32‧‧‧Electric bicycle

321‧‧‧ frame

323‧‧‧ front wheel

325‧‧‧ Rear wheel

327‧‧‧ pedal

33‧‧‧煞车

34‧‧‧Speed sensor

36‧‧‧Slope sensor

38‧‧‧ pedal sensor

40‧‧‧Control unit

100~108, 200~210‧‧‧ steps

Fig. 1 is a schematic view showing an electric assist system according to an embodiment of the present invention.

2 is a functional block diagram of an electric power assisting system according to an embodiment of the present invention.

FIG. 3 is a flow chart of a method for adjusting a mode of an electric bicycle according to an embodiment of the present invention.

Fig. 4 is a flow chart showing a method of adjusting the mode of the electric bicycle according to another embodiment of the present invention.

The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation. Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic diagram of an electric power assisting system 30 according to an embodiment of the present invention. FIG. 2 is a functional block diagram of an electric power assisting system 30 according to an embodiment of the present invention. As shown in FIG. 1 and FIG. 2, the electric power assist system 30 includes an electric bicycle 32, a speed sensor 34, and a slope sensor 36. The speed sensor 34 is mounted on the electric bicycle 32 and is used for sensing. One of the traveling speeds of the electric bicycle 32, the inclination sensor 36 is mounted to the electric bicycle 32 and is used to sense whether the electric bicycle 32 is in a down state.

In addition, the electric bicycle 32 can include a frame 321, a front wheel 323, a rear wheel 325, and a pedal 327. The frame 321 supports the user, and the front wheel 323 and the rear wheel 325 are rotatably mounted on the frame 321 The pedal 327 is mounted on the frame 321 for driving the rear wheel 325 to rotate, so that the user can step on the pedal 327 to drive the rear wheel 325 to rotate, thereby driving the frame 321 of the electric bicycle 32 forward. In addition, the electric assist system 30 may further include a brake 33 that can be used to stop the front wheel 323 and/or the rear wheel 325 to stop the frame 321 driven by the front wheel 323 and the rear wheel 325. In addition, the electric power assist system 30 can further include an electric actuator (not shown) mounted on the frame 321 , which can be used to provide additional electric power for the electric assist bicycle 32 to help use Overcome different road conditions. In this embodiment, the electric actuator can be a motor, but the application of the electric actuator of the present invention is not limited thereto.

In addition, the electric power assist system 30 further includes a pedal sensor 38 and a control unit 40. The pedal sensor 38 is mounted on the electric bicycle 32, and the control unit 40 is coupled to the sense of speed. The detector 34, the slope sensor 36 and the pedal sensor 38. The pedal sensor 38 is used to sense a rotational speed of a pedal 327 or a pedal torque value, and the control unit 40 can be used to determine the following conditions: (1) the speed sensor 34 senses that the traveling speed of the electric bicycle 32 is greater than zero, (2) The slope sensor 36 senses that the electric bicycle 32 is not in the downhill state and (3) the pedal sensor 38 senses that the pedal 327 has a zero rotational speed for a period of time or the pedal torque value is lower than A pedal preset value.

Referring to FIG. 3, FIG. 3 is a flow chart of a method for adjusting the mode of the electric bicycle 32 according to an embodiment of the present invention. The method includes the following steps: Step 100: Using the speed sensor 34 to sense the traveling speed of the electric bicycle 32, The control unit 40 determines whether the traveling speed is greater than zero? If yes, go to step 102, if no, go to step 108.

Step 102: Using the slope sensor 36 to sense the traveling state of the electric bicycle 32, and using the control unit 40 to determine whether the electric bicycle 32 is not in the downhill state. If yes, go to step 104. If no, go to step 108.

Step 104: Using the pedal sensor 38 to sense the rotational speed of the pedal 327 or the pedal torque value, the control unit 40 determines whether the rotational speed of the pedal 327 is zero for a period of time or whether the pedal torque value is lower than a pedal. default value? If yes, go to step 106. If no, go to step 108.

Step 106: The control unit 40 selectively controls the electric bicycle 32 to enter a cruise mode.

Step 108: The control unit 40 selectively controls the electric bicycle 32 to enter a non-cruise mode.

The method for adjusting the mode of the electric bicycle 32 shown in FIG. 3 will be described in detail below, in which the electric actuator provides additional electric power to the electric bicycle 32 to assist the user in riding the electric bicycle 32, and the speed sensing is performed. The pedal 34 can be used to sense the travel speed of the electric bicycle 32, and the slope sensor 36 can be used to sense whether the electric bicycle 32 is in the downhill state, and the pedal sensor 38 can be used to sense the rotational speed of the pedal 327 or The pedal torque value. In this embodiment, The control unit 40 can be used to determine the following three conditions: (1) the speed sensor 34 senses that the traveling speed of the electric bicycle 32 is greater than zero, and (2) the inclination sensor 36 senses that the electric bicycle 32 is not in the downhill state. And (3) the pedal sensor 38 senses that the rotational speed of the pedal 327 during the period is zero or the pedal torque value is lower than the pedal preset value.

When the control unit 40 determines that all of the conditions (1), (2), and (3) are satisfied, that is, when the control unit 40 determines that the traveling speed is greater than zero (step 100), it is determined that the electric bicycle 32 is not in the downhill state (step 102). And determining that the rotational speed of the pedal 327 is zero for a period of time or the pedal torque value is lower than a pedal preset value (step 104), the control unit 40 can selectively control the electric bicycle 32 according to the needs of the user. The cruise mode is entered (step 106) and the electric bicycle 32 is controlled to maintain a cruising speed. In this embodiment, when the electric moped 32 enters the cruise mode, the control unit 40 can control the cruising speed to be the traveling speed of the electric moped 32 entering the cruise mode moment. That is, when the electric bicycle 32 enters the cruise mode, the control unit 40 can control the electric bicycle 32 to maintain the traveling speed of the electric bicycle 32 at the moment of entering the cruise mode, and the present invention enters the cruise mode when the electric bicycle 32 enters the cruise mode. This cruising speed is not limited to this.

For example, when the electric moped 32 enters the cruise mode, the control unit 40 can control the electric moped 32 to maintain the cruising speed equal to a preset speed, wherein the preset speed is in accordance with a government specification speed limit upper limit. That is, when the electric moped 32 enters the cruise mode, regardless of the traveling speed of the electric moped 32 at the moment of entering the cruise mode, the control unit 40 can control the electric moped 32 to maintain the preset speed, for example, 20 km/h. It is noted that the preset speed is in accordance with the government standard speed limit specified by the governments, and the government standard speed limit is not limited to the embodiment, and it depends on the actual specifications of the governments. It is worth mentioning that when the electric moped 32 enters the cruise mode and the user uses the brake 33 of the electric bicycle 32, the control unit 40 can additionally control the electric bicycle 32 to be out of the cruise mode. For example, the control unit 40 can control the electric assist system 30. The electric actuator no longer provides assistance to disengage the electric bicycle 32 from the cruise mode, thereby increasing the safety of the electric assist system 30.

Conversely, when the control unit 40 judges that one of the three conditions (1), (2), and (3) is not satisfied At this time, the control unit 40 can control the electric bicycle 32 not to enter the cruise mode, or the control unit 40 can selectively control the electric bicycle 32 to enter a non-cruising mode according to the needs of the user (step 108). For example, the non-cruising mode may be a smart assist mode. For example, the smart assist mode may adjust the electric motor of the electric moped 32 according to the traveling speed, the pedal rotation speed or the pedal torque value. The amount of assist provided by the actuator to help the user overcome the road condition corresponding to one of the traveling speed, the pedal rotation speed or the pedal torque value, and the above-mentioned intelligent assist mode and related technologies disclose the Taiwan patent Patent No. 102116912 and Continental Patent Application No. 201310185340.1.

Please refer to FIG. 4, which is a flow chart of a method for adjusting the mode of the electric bicycle 32 according to another embodiment of the present invention. The main difference between the method shown in FIG. 4 and the method shown in FIG. 3 is that FIG. The method for adjusting the mode of the electric bicycle 32 according to another embodiment of the present invention further includes the control unit 40 in addition to determining the above condition: (1) the speed sensor 34 senses that the traveling speed of the electric bicycle 32 is greater than zero, (2) The slope sensor 36 senses that the electric bicycle 32 is not in the downhill state and (3) the pedal sensor 38 senses that the pedal 327 has zero speed during the period or the pedal torque value is lower than the In addition to the pedal preset value, the control unit 40 further determines (4) that the speed sensor 34 senses whether the traveling speed of the electric bicycle 32 is less than a government specification speed limit upper limit. The fourth figure includes the following steps: Step 200: Using the speed sensor 34 to sense the traveling speed of the electric bicycle 32, the control unit 40 determines whether the traveling speed is greater than zero. If yes, go to step 202, if no, go to step 210.

Step 202: Using the slope sensor 36 to sense the traveling state of the electric bicycle 32, the control unit 40 determines whether the electric bicycle 32 is not in the downhill state. If yes, go to step 204, if no, go to step 210.

Step 204: Using the pedal sensor 38 to sense the rotational speed of the pedal 327 or the pedal torque value, the control unit 40 determines whether the rotational speed of the pedal 327 is zero for a period of time or whether the pedal torque value is lower than a pedal. default value? If yes, go to step 206, if no, execute step Step 210.

Step 206: The control unit 40 determines whether the traveling speed is less than a government standard speed limit upper limit? If yes, go to step 208. If no, go to step 210.

Step 208: The control unit 40 selectively controls the electric moped 32 to enter the cruise mode.

Step 210: The control unit 40 selectively controls the electric bicycle 32 to enter a smart assist mode.

The method for adjusting the mode of the electric bicycle 32 shown in FIG. 4 is described in detail below. Steps 200 to 204 correspond to steps 100 to 104, respectively, and the detailed description thereof will not be repeated here for brevity. When the control unit 40 determines that one of the three conditions (1), (2), and (3) is not satisfied, the control unit 40 may control the electric bicycle 32 not to enter the cruise mode, for example, when the control unit 40 determines (1) (2) When (3) one of the three conditions is not satisfied, the control unit 40 may control the electric bicycle 32 to enter the cruise mode (step 210); conversely, when the control unit 40 determines (1) (2) (3) three When the conditions are all satisfied, the control unit 40 may further determine whether the condition (4) is satisfied (step 206), that is, when the control unit 40 determines that all three conditions (1), (2), and (3) are satisfied, the control unit 40 may further determine. The speed sensor 34 senses whether the speed of travel of the electric bicycle 32 is less than the government standard speed limit.

When the control unit 40 determines that all of the conditions (1), (2), (3), and (4) are satisfied, that is, when the control unit 40 determines that all of the conditions (1), (2), and (3) are satisfied, and the control unit 40 determines the degree of feeling. When the detector 34 senses that the traveling speed of the electric bicycle 32 is less than the government standard speed limit upper limit, the control unit 40 can selectively control the electric bicycle 32 to enter the cruise mode according to the needs of the user (step 208), and control the electric motor. The moped 32 is maintained at the cruising speed. The cruise mode and the cruise speed are as described above, and will not be described again for brevity. Conversely, when the control unit 40 determines that the three conditions (1), (2), and (3) are satisfied but the condition (4) is not satisfied, that is, when the control unit 40 determines that the three conditions (1), (2), and (3) are satisfied, When the control unit 40 determines that the traveling speed of the electric bicycle 32 is not less than the government standard speed limit upper limit, in this embodiment, the control unit 40 can control the electric bicycle 32 to enter the cruise mode and maintain the electric bicycle. The cruising speed of 32 is the government standard speed limit (step 210) to match The government's standard speed limit is regulated by the national government, or the control unit 40 can control the electric bicycle 32 to enter the smart assist mode disclosed in the Taiwan Patent Application No. 102116912 and the mainland patent application No. 201310185340.1 (step 218). ) to maintain user safety.

Compared with the prior art, the present invention utilizes a speed sensor, a slope sensor and a pedal sensor to respectively sense the traveling speed of the electric bicycle, whether the electric bicycle is in a downhill state, and the rotational speed of the pedal or the pedal torque value. Furthermore, the present invention further utilizes the control unit to control whether the electric moped enters the cruise mode according to the traveling speed, whether it is in a downhill state, and the pedal rotation speed or the pedal torque value. Therefore, the electric moped of the present invention can automatically enter the cruise mode without using Manually select and set the cruise mode. In this way, the present invention can reduce the risk of manual operation by the user when riding the electric bicycle. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100~108‧‧‧Steps

Claims (18)

A method for adjusting a mode of an electric bicycle, the electric bicycle having a pedal, the method comprising the steps of: sensing a traveling speed of the electric bicycle with a speed sensor; sensing the electric bicycle with a tilt sensor Whether it is in a down state; sensing the rotational speed of one of the pedals or a pedal torque value by using a pedal sensor; and using a control unit to judge the criterion: (1) the speed sensor senses the travel of the electric bicycle The speed is greater than zero, (2) the slope sensor senses that the electric bicycle is not in the downhill state, and (3) the pedal sensor senses that the pedal has a zero speed or a period of time The pedal torque value is lower than a pedal preset value, and when the three conditions (1), (2), and (3) are satisfied, the control unit selectively controls the electric bicycle to enter a cruise mode, wherein the electric assist vehicle enters the cruise mode. In the mode, the control unit controls the electric bicycle to maintain a cruising speed. The method of claim 1, wherein the control unit controls the cruising speed to be the traveling speed of the electric moped entering the cruising mode moment when the electric moped enters the cruise mode. The method of claim 1, wherein the control unit controls the electric bicycle to maintain the cruising speed equal to a preset speed when the electric bicycle enters the cruise mode, wherein the preset speed is in accordance with a government standard speed limit . The method of claim 1, comprising the step of: the control unit further determining (4) whether the speed sensor senses whether the speed of the electric bicycle is less than a government standard speed limit, when (1) (2) (3) (4) When the four conditions are satisfied, the control unit selectively controls the electric bicycle to enter the cruise mode. The method of claim 4, wherein the control is performed when the electric bicycle enters the cruise mode The unit controls the cruising speed to be the traveling speed sensed by the speed sensor. The method of claim 4, wherein when the three conditions (1), (2), and (3) are satisfied, but (4) the condition is not satisfied, the control unit controls the cruising speed of the electric bicycle to be the government standard speed. The upper limit or the control unit controls the electric bicycle not to enter the cruise mode. The method of claim 4, wherein when the three conditions (1), (2), and (3) are satisfied, but (4) the condition is not satisfied, the control unit selectively controls the electric bicycle to enter a smart assist mode, The smart assist mode adjusts a boosting force output of the electric bicycle according to one of the traveling speed, the pedal rotating speed or the pedal torque value. The method of claim 1, wherein when one of the three conditions (1), (2), and (3) is not satisfied, the control unit selectively controls the electric bicycle to enter a smart assist mode, the smart assist mode A boosting force output of the electric bicycle is adjusted according to one of the traveling speed, the pedal rotating speed or the pedal torque value. The method of claim 1, wherein the control unit controls the electric bicycle to depart from the cruise mode when the electric bicycle enters the cruise mode and a brake is used. An electric power assist system comprising: an electric bicycle having a pedal; a speed sensor mounted to the electric bicycle for sensing a traveling speed of the electric bicycle; a slope sensor, It is mounted on the electric bicycle to sense whether the electric bicycle is in a down state; a pedal sensor is mounted on the electric bicycle to sense a rotation speed of the pedal or a pedal torque value; and a control unit coupled to the speed sensor, the slope sensor, and the pedal sensor for determining (1) the speed sensor sensing the electric bicycle The traveling speed is greater than zero, (2) the slope sensor senses that the electric bicycle is not in the downhill state, and (3) the pedal sensor senses that the pedal has a zero speed or a period of time The pedal torque value is lower than a preset value of the pedal, and the control unit selectively controls the electric bicycle to enter a cruise mode when the three conditions (1), (2) and (3) are satisfied, wherein when the electric assist vehicle enters the In the cruise mode, the control unit controls the electric bicycle to maintain a cruising speed. The electric power assist system of claim 10, wherein the control unit controls the cruising speed to be the traveling speed of the electric moped entering the cruise mode when the electric assist vehicle enters the cruise mode. The electric power assist system of claim 10, wherein the control unit controls the electric bicycle to maintain the cruise speed equal to a preset speed when the electric assist vehicle enters the cruise mode, wherein the preset speed is in accordance with a government standard speed Limit to the upper limit. The electric power assisting system of claim 10, wherein the control unit is further configured to determine (4) whether the speed sensor senses whether the traveling speed of the electric bicycle is less than a government standard speed limit upper limit, and the control unit is 1) When both (2), (3), and (4) conditions are satisfied, the electric bicycle is selectively controlled to enter the cruise mode. The electric power assist system of claim 13, wherein the control unit controls the cruising speed to be the traveling speed sensed by the speed sensor when the electric moped enters the cruise mode. The electric power assist system of claim 13, wherein the control unit is full in three conditions (1), (2), and (3) If the condition is not satisfied, the cruising speed of the electric moped is controlled to be the government standard speed limit upper limit or the electric moped is not controlled to enter the cruise mode. The electric power assist system according to claim 13, wherein the control unit satisfies the three conditions (1), (2), and (3), but (4) when the condition is not satisfied, selectively controlling the electric bicycle to enter a smart assisting force. a mode, the smart assist mode adjusting a boosting force output of the electric bicycle according to one of the traveling speed, the pedal rotating speed or the pedal torque value. The electric power assist system of claim 10, wherein the control unit selectively controls the electric moped to enter a smart assist mode when one of the three conditions (1), (2), and (3) is not satisfied, the smart The assist mode adjusts a boosting force output of the electric bicycle according to one of the traveling speed, the pedal rotating speed or the pedal torque value. The electric power assist system of claim 10, further comprising: a brake control unit that controls the electric assisted vehicle to depart from the cruise mode when the electric assisted vehicle enters the cruise mode and the brake is used.