JP2020128185A - Control device and transmission system - Google Patents

Abstract

To provide a control device and a transmission system contributing to a comfort running of a man-power driving vehicle.SOLUTION: A control device includes a control unit that controls a transmission device so as to change the transmission ratio of a man-power driving vehicle in accordance with a transmission condition defined on the basis of a first reference value. The control unit controls the transmission device so as to suppress the transmission in accordance with a change in a second reference value relating to an input to the man-power driving vehicle.SELECTED DRAWING: Figure 6

Description

The present invention relates to a control device and a transmission system.

A transmission system for controlling a transmission of a human-powered vehicle is known. A conventional transmission system controls a transmission so that the rotation speed of a crank is maintained within a predetermined range according to a shift condition defined based on a rotation speed of a crank of a human-powered vehicle and a threshold value. Patent Document 1 discloses an example of a conventional transmission system.

Japanese Patent Publication No. 10-511621

It is desirable that passengers riding a human-powered vehicle can travel comfortably.
An object of the present invention is to provide a control device and a transmission system that can contribute to comfortable driving of a human-powered vehicle.

A control device according to a first aspect of the present invention includes a control unit that controls the transmission device such that a gear ratio of a human-powered vehicle changes in accordance with a shift condition defined based on a first reference value. The unit controls the transmission device to suppress the shift according to a change in the second reference value related to the input to the human-powered vehicle.
According to the control device of the first aspect, the gear shift is suppressed in accordance with the change in the second reference value, so that the gear shift not intended by the passenger riding in the human-powered vehicle can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the second aspect according to the first aspect, the control unit includes a shift-up gear shift in which a gear ratio of the human-powered vehicle increases in accordance with a change in the second reference value, and a human-powered vehicle. The transmission is controlled so as to suppress at least one of the downshifts in which the gear ratio becomes small.
According to the control device of the second aspect, it is possible to contribute to comfortable running of the human powered vehicle.

In the control device of the third aspect according to the second aspect, the first reference value includes traveling information regarding a traveling state of the human-powered vehicle.
According to the control device of the third aspect, the transmission of the human-powered vehicle is preferably controlled according to the shift condition, which contributes to comfortable running of the human-powered vehicle.

In the control device according to the fourth aspect according to the third aspect, the travel information includes at least one of cadence, torque acting on a crank of the human-powered vehicle, vehicle speed, acceleration, and power.
According to the control device of the fourth aspect, it is possible to contribute to comfortable running of the human-powered vehicle.

In the control device according to the fifth aspect according to the fourth aspect, the first reference value includes the cadence, and the control unit suppresses the shift-up shift according to a change in the second reference value. The transmission is controlled.
According to the control device of the fifth aspect, the shift-up shift is suppressed in accordance with the change in the second reference value, so that the shift-up shift that is not intended by the passenger due to high cadence can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the sixth aspect according to the fourth or fifth aspect, the first reference value includes the torque, and the control unit suppresses the shift down shift according to the change in the second reference value. The transmission is controlled to do so.
According to the control device of the sixth aspect, the shift down shift is suppressed in accordance with the change in the second reference value, so that the shift down shift unintended by the passenger due to the high torque can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the controller according to the seventh aspect according to any one of the first to sixth aspects, the second reference value includes at least one of cadence, torque acting on a crank of the human-powered vehicle, and power. ..
According to the control device of the seventh aspect, it is possible to contribute to comfortable running of the human powered vehicle.

In the control device according to the eighth aspect according to the seventh aspect, the control unit controls the transmission device to suppress a shift in response to an instantaneous increase in the second reference value.
According to the control device of the eighth aspect, the gear shift is suppressed in accordance with the instantaneous increase of the second reference value, so that the gear shift not intended by the passenger can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the ninth aspect according to the eighth aspect, the second reference value includes the cadence, and the control unit suppresses a shift when the cadence instantaneously becomes equal to or higher than the first cadence. Control the transmission.
According to the control device of the ninth aspect, since the shift accompanying the momentary increase in cadence is suppressed, it is possible to suppress the shift not intended by the occupant. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the tenth aspect according to the ninth aspect, the first cadence is set based on a threshold value for shift-up shift that defines the shift condition.
According to the control device of the tenth aspect, it is possible to contribute to comfortable running of the human powered vehicle.

In the control device of the eleventh aspect according to any one of the eighth to tenth aspects, the second reference value includes the torque, and the control section causes the torque to momentarily become equal to or higher than the first torque. , Controlling the transmission so as to suppress the shift.
According to the control device of the eleventh aspect, since the gear shift caused by the instantaneous increase of the torque is suppressed, the gear shift not intended by the occupant can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the twelfth aspect according to the eleventh aspect, the first torque is 70 Nm or more.
According to the control device of the twelfth aspect, it is possible to contribute to comfortable running of the human-powered vehicle.

In the control device according to the thirteenth aspect according to any one of the seventh to twelfth aspects, the control unit controls the transmission device to suppress the shift according to the amount of change in the second reference value. ..
According to the control device of the thirteenth aspect, since the gear shift is suppressed according to the amount of change in the second reference value, the gear shift not intended by the passenger can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the fourteenth aspect according to the thirteenth aspect, the control unit controls the transmission device to suppress a shift according to an instantaneous increase amount of the second reference value.
According to the control device of the fourteenth aspect, since the shift accompanying the momentary increase in the second reference value is suppressed, the shift not intended by the passenger can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the fifteenth aspect according to the fourteenth aspect, the second reference value includes the cadence, and the control unit suppresses a shift when the instantaneous increase amount of the cadence becomes the first increase amount. The transmission is controlled as described above.
According to the control device of the fifteenth aspect, since the gear shift that accompanies the instantaneous increase of the cadence is suppressed, the gear shift that the occupant does not intend can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the sixteenth aspect according to the fourteenth or fifteenth aspect, the second reference value includes the torque, and the control unit shifts the gear when the instantaneous increase amount of the torque reaches the second increase amount. The transmission is controlled so as to suppress
According to the control device of the sixteenth aspect, since the shift accompanying the momentary increase in torque is suppressed, it is possible to suppress the shift not intended by the occupant. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the seventeenth aspect according to any one of the first to sixteenth aspects, the control unit changes the gear according to the change in the second reference value and at least one of the vehicle speed and the slope of the road surface. The transmission is controlled to suppress it.
According to the control device of the seventeenth aspect, since the gear shift is suppressed at the timing corresponding to the change of the second reference value and at least one of the vehicle speed and the road surface gradient, the gear shift not intended by the occupant can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the eighteenth aspect according to any one of the first to seventeenth aspects, the control unit controls the transmission device to suppress a shift, and then at least one of the second reference value and the vehicle speed. Depending on the one, the transmission is controlled so as to release the suppression of the shift.
According to the control device of the eighteenth aspect, since the suppression of the shift is released at the timing corresponding to at least one of the second reference value and the vehicle speed, it is possible to realize a smooth shift by the transmission. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the nineteenth aspect according to the eighteenth aspect, the control section controls the transmission device so as to release the suppression of the shift when the second reference value is out of a predetermined range.
According to the control device of the nineteenth aspect, since the suppression of the shift is released at the timing corresponding to the second reference value, it is possible to realize the smooth shift by the transmission. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the twentieth aspect according to the nineteenth aspect, the second reference value includes a torque, and the control unit releases the suppression of the shift when the torque becomes less than a second torque included in the outside of the predetermined range. The transmission is controlled to do so.
According to the control device of the twentieth aspect, since the suppression of the shift is released in accordance with the decrease in the torque, it is possible to realize smooth shift by the transmission. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the twenty-first aspect according to the twentieth aspect, the control unit controls the transmission device to release the suppression of the shift when the torque becomes less than a third torque included in the outside of the predetermined range, The third torque is larger than the second torque.
According to the control device of the twenty-first aspect, it is possible to contribute to comfortable running of the human-powered vehicle.

In the control device according to the twenty-second aspect according to any one of the nineteenth to twenty-first aspects, the second reference value includes a cadence, and the control unit has a second cadence of which the cadence is outside the predetermined range. Then, the transmission is controlled so as to release the restriction of the shift.
According to the control device of the twenty-second aspect, the suppression of the shift is released in accordance with the increase in the cadence, so that a smooth shift can be realized by the transmission. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device according to the twenty-third aspect according to any one of the eighteenth to twenty-second aspects, the control unit releases the suppression of the shift when the vehicle speed becomes equal to or higher than a predetermined vehicle speed corresponding to the gear ratio of the human-powered vehicle. The transmission is controlled to do so.
According to the control device of the twenty-third aspect, since the suppression of the shift is released as the vehicle speed increases, it is possible to realize a smooth shift by the transmission. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

In the control device of the twenty-fourth aspect according to any one of the first to twenty-third aspects, the control unit suppresses the shift when a predetermined time has elapsed after controlling the transmission to suppress the shift. The transmission is controlled to release.
According to the control device of the twenty-fourth aspect, since the suppression of the shift is released according to the time elapsed after the suppression of the shift, it is possible to realize a smooth shift by the transmission. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

A transmission system according to a twenty-fifth aspect of the present invention includes the control device and the transmission device.
According to the gear shift system of the twenty-fifth aspect, gear shift is suppressed in accordance with a change in the second reference value, so gear shift not intended by a passenger riding in a human-powered vehicle can be suppressed. Therefore, it can contribute to the comfortable running of the human-powered vehicle.

According to the control device and the transmission system of the present invention, it is possible to contribute to the comfortable running of the human-powered vehicle.

1 is a side view of a human-powered vehicle including a transmission system according to a first embodiment. FIG. 2 is a block diagram showing an electrical connection relationship between the control device of FIG. 1 and various elements. 3 is a map showing an example of shift conditions used for controlling the transmission of FIG. 1. 3 is a flowchart showing an example of automatic shift control executed by the control device of FIG. 1. 3 is a flowchart showing an example of a determination process regarding a first predetermined condition in the first shift suppression control executed by the control device of FIG. 1. The flowchart which shows an example of the 1st shift suppression control which the control apparatus of FIG. The flowchart which shows an example of the determination process regarding the 2nd predetermined condition in the 2nd shift suppression control which the control apparatus of the transmission system of 2nd Embodiment performs. 8 is a flowchart showing an example of second shift suppression control executed by the control device in FIG. 7.

<First Embodiment>
A manual drive vehicle A including a transmission system 10 will be described with reference to FIG. 1.
Here, the human-powered vehicle means a vehicle that at least partially uses human power as a driving force for traveling, and includes a vehicle that electrically assists human power. Vehicles that use only motive power other than human power are not included in human powered vehicles. In particular, a vehicle that uses only an internal combustion engine as a driving force is not included in a human-powered vehicle. Usually, a small and light vehicle is assumed as the human-powered vehicle, and a vehicle that does not require a license for driving on a public road is assumed. The illustrated human-powered vehicle A is a bicycle including an electric auxiliary unit E that assists the propulsion of the human-powered vehicle A by using electric energy. Specifically, the illustrated human-powered vehicle A is a trekking bike. The human-powered vehicle A further includes a frame A1, a front fork A2, wheels W, a handle H, and a drive train B. The wheel W includes a front wheel WF and a rear wheel WR.

The drive train B is, for example, a chain drive type. The drive train B includes a crank C, a front sprocket D1, a rear sprocket D2, and a chain D3. The crank C includes a crank shaft C1 rotatably supported by the frame A1, and a pair of crank arms C2 provided at both ends of the crank shaft C1. A pedal PD is rotatably attached to the tip of each crank arm C2. The drive train B can be selected from any type and may be a belt drive type or a shaft drive type.

The front sprocket D1 is provided on the crank C so as to rotate integrally with the crank shaft C1. The rear sprocket D2 is provided on the hub HR of the rear wheel WR. The chain D3 is wound around the front sprocket D1 and the rear sprocket D2. The human-powered driving force applied to the pedal PD by the passenger riding on the human-powered vehicle A is transmitted to the rear wheel WR via the front sprocket D1, the chain D3, and the rear sprocket D2.

The electric auxiliary unit E operates to assist the propulsion of the human-powered vehicle A. The electric auxiliary unit E operates according to, for example, a human-powered driving force applied to the pedal PD. The electric auxiliary unit E includes a motor E1. The electric auxiliary unit E operates by electric power supplied from a battery BT mounted on the human-powered vehicle A.

The transmission system 10 includes a control device 12 and a transmission device 20. The control device 12 is housed in the housing E2 of the electric auxiliary unit E, for example. The control device 12 operates by the electric power supplied from the battery BT.

The transmission 20 is configured to be mechanically or electrically driven according to the operation of the shift lever SL, for example. When the transmission 20 is electrically driven, the transmission 20 operates by the electric power supplied from the battery BT or the electric power supplied from the dedicated power source mounted on the transmission 20. The transmission 20 includes an external transmission. In one example, transmission 20 includes at least one of a front derailleur 22 and a rear derailleur 24. As used herein, the phrase "at least one" means "one or more" of the desired options. As an example, the expression "at least one" as used herein means "only one option" or "both two options" if the number of options is two. As another example, the expression "at least one" as used herein means "only one option" or "a combination of any two or more options" if the number of options is three or more. Means

The front derailleur 22 is provided near the front sprocket D1. As the front derailleur 22 is driven, the front sprocket D1 around which the chain D3 is wound is changed, and the gear ratio of the manually driven vehicle A is changed. The gear ratio of the human-powered vehicle A is defined based on the relationship between the number of teeth of the front sprocket D1 and the number of teeth of the rear sprocket D2. In one example, the gear ratio of the manually driven vehicle A is defined by the ratio of the rotation speed of the rear sprocket D2 to the rotation speed of the front sprocket D1. That is, the gear ratio of the manually driven vehicle A is defined by the ratio of the number of teeth of the front sprocket D1 to the number of teeth of the rear sprocket D2. The rear derailleur 24 is provided at the rear end A3 of the frame A1. As the rear derailleur 24 is driven, the rear sprocket D2 around which the chain D3 is wound is changed, and the gear ratio of the manually driven vehicle A is changed. The transmission 20 may include an internal transmission instead of the external transmission. In this case, the internal transmission is provided, for example, on the hub HR of the rear wheel WR. The transmission 20 may include a continuously variable transmission instead of the external transmission. In this case, the continuously variable transmission is provided, for example, on the hub HR of the rear wheels WR.

A specific configuration of the control device 12 will be described with reference to FIG.
The control device 12 includes a control unit 14 that controls the transmission device 20 so that the transmission gear ratio of the human-powered vehicle A changes according to the transmission condition defined based on the first reference value RV1. The control unit 14 is a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control unit 14 executes an automatic shift control that automatically controls the transmission 20 of the human-powered vehicle A according to a shift condition. The control unit 14 can also control the transmission 20 according to the operation of the shift lever SL. The control unit 14 may further control various components mounted on the human-powered vehicle A in addition to the transmission 20 of the manually-powered vehicle A. The control device 12 further includes a storage unit 16 that stores various types of information. The storage unit 16 includes a non-volatile memory and a volatile memory. The storage unit 16 stores, for example, various programs for control, preset information, and the like.

As shown in FIG. 3, the shift condition is defined based on the first reference value RV1 and the threshold value TH. The first reference value RV1 includes traveling information regarding the traveling state of the human-powered vehicle A. The traveling information includes at least one of cadence, torque acting on the crank C of the human-powered vehicle A, vehicle speed, acceleration, and power. The cadence is synonymous with the rotation speed of the crank C. Power is the product of cadence and torque. In the present embodiment, the first reference value RV1 includes cadence.

The threshold TH includes a first threshold TH1 and a second threshold TH2. The control unit 14 controls the transmission device 20 to execute a shift-up shift in which the gear ratio of the human-powered vehicle A increases according to the relationship between the first reference value RV1 and the first threshold value TH1. The control unit 14 controls the transmission device 20 to execute a downshift that reduces the gear ratio of the human-powered vehicle A according to the relationship between the first reference value RV1 and the second threshold value TH2. The first threshold TH1 is different from the second threshold TH2. In this case, the first threshold TH1 and the second threshold TH2 have a predetermined range. In one example, the first threshold TH1 differs from the second threshold TH2 by a predetermined value PV. The predetermined value PV is a predetermined width that defines a predetermined range. In the present embodiment, the first threshold TH1 is larger than the second threshold TH2. In one example, the control unit 14 controls the transmission device 20 to execute the shift-up shift when the first reference value RV1 becomes equal to or more than the first threshold value TH1, and shifts when the first reference value RV1 becomes less than the second threshold value TH2. The transmission 20 is controlled to execute the downshift.

When the first reference value RV1 is greater than or equal to the first threshold value TH1 and the current gear ratio of the human-powered vehicle A is the maximum gear ratio, the control unit 14 maintains the gear ratio of the human-powered vehicle A so as to maintain the gear ratio. To control. The maximum gear ratio of the human-powered vehicle A is the maximum gear ratio based on the relationship between the front sprocket D1 and the rear sprocket D2. When the first reference value RV1 is less than the second threshold value TH2 and the current gear ratio of the manually driven vehicle A is the minimum gear ratio, the control unit 14 maintains the gear ratio of the manually driven vehicle A so as to maintain the gear ratio. To control. The minimum gear ratio of the human-powered vehicle A is the minimum gear ratio based on the relationship between the front sprocket D1 and the rear sprocket D2. In the example in which the first reference value RV1 includes torque, the control opposite to the above-described example in which the first reference value RV1 includes cadence is executed. In one example, the control unit 14 controls the transmission device 20 to execute the shift-down shift according to the relationship between the first reference value RV1 and the first threshold value TH1, and the first reference value RV1 and the second threshold value TH2 are set. The transmission device 20 is controlled so as to execute the up-shifting shift according to the relationship.

The control unit 14 controls the transmission 20 so as to suppress the shift, and then executes the first shift suppression control that controls the transmission 20 so as to release the suppression of the shift. The control unit 14 controls the transmission 20 to suppress the shift according to the change in the second reference value RV2 related to the input to the human-powered vehicle A. The second reference value RV2 includes at least one of cadence, torque acting on the crank C of the human-powered vehicle A, and power. The control unit 14 controls the transmission 20 so as to suppress at least one of the shift according to the shift condition and the shift according to the operation of the shift lever SL while the shift is suppressed. In the present embodiment, the control unit 14 controls the transmission 20 so as to suppress the shift according to the shift condition during the period in which the shift is suppressed. The control unit 14 may control the transmission 20 so as to allow the shift according to the operation of the shift lever SL while the shift is suppressed.

The control unit 14 performs at least one of a shift-up shift in which the gear ratio of the human-powered vehicle A increases and a shift-down gear in which the gear ratio of the human-driven vehicle A decreases according to the change in the second reference value RV2. The transmission 20 is controlled to suppress it. The shifts (shift up shifts, shift down shifts) that are suppressed in accordance with changes in the second reference value RV2 are preferably set according to the type of the first reference value RV1, for example. In one example, the first reference value RV1 includes cadence. The control unit 14 controls the transmission 20 so as to suppress the shift-up shift according to the change in the second reference value RV2. In this case, the control unit 14 may control the transmission 20 so as to always permit the shift down shift regardless of the change in the second reference value RV2, and suppress the shift up shift and the shift down shift. The transmission 20 may be controlled to do so. The same applies when at least one of vehicle speed, acceleration, and power is included in the first reference value RV1. In another example, the first reference value RV1 includes torque. The control unit 14 controls the transmission 20 so as to suppress the shift-down shift according to the change in the second reference value. In this case, the control unit 14 may control the transmission 20 so as to always permit the shift-up shift regardless of the change in the second reference value RV2, and suppress the shift-down shift and the shift-up shift. The transmission 20 may be controlled to do so. In the present embodiment, since the first reference value RV1 includes cadence as described above, the control unit 14 controls the transmission device 20 so as to suppress the shift-up shift according to the change in the second reference value RV2.

The control unit 14 controls the transmission 20 so as to suppress the shift according to the instantaneous increase in the second reference value RV2. The period that is meant to be instantaneous includes a period that is longer than 0 seconds and shorter than 2 seconds. In a preferred example, the duration implied by the instantaneous includes a duration greater than 0 seconds and less than 0.5 seconds. The control unit 14 controls the transmission 20 to suppress the shift according to the change in the second reference value RV2 and at least one of the vehicle speed and the slope of the road surface.

When the first predetermined condition is satisfied, the control unit 14 controls the transmission 20 so as to suppress the shift. The control unit 14 determines that the first predetermined condition is satisfied, for example, when at least one of the first condition and the second condition is satisfied. In one example, the control unit 14 determines that the first predetermined condition is satisfied when at least one of the third condition to the fifth condition is satisfied in addition to the satisfaction of at least one of the first condition and the second condition. In the present embodiment, the control unit 14 determines that the first predetermined condition is satisfied when all the first to fifth conditions are satisfied.

The second reference value RV2 includes cadence. The control unit 14 determines that the first condition is satisfied, for example, when the cadence momentarily becomes equal to or higher than the first cadence. Specifically, the control unit 14 determines that the first condition is satisfied when the cadence momentarily becomes equal to or more than the first cadence from the state of being less than the predetermined cadence. In other words, the control unit 14 determines that the first condition is satisfied when the cadence becomes the first cadence or more in the predetermined period from the state where the cadence is less than the predetermined cadence. The control unit 14 may determine that the first condition is satisfied when the previously measured cadence is less than the predetermined cadence and the current cadence is equal to or more than the first cadence. The first cadence is set on the basis of a threshold value TH for shift-up shift that defines a shift condition. In other words, the first cadence is set based on the first threshold value TH1 that defines the shift condition. The first cadence matches the cadence corresponding to the first threshold TH1. In one example, the first cadence is 80 rpm. The predetermined cadence is smaller than the first cadence. In one example, the predetermined cadence is 70 rpm. At least one of the first cadence and the predetermined cadence may be stored in the storage unit 16 so that the passenger can change the cadence. The predetermined period is a period that means instantaneously. When it is determined that the first predetermined condition is satisfied in accordance with the satisfaction of the first condition, the control unit 14 controls the transmission device 20 to suppress the shift when the cadence instantaneously becomes equal to or higher than the first cadence.

The second reference value RV2 includes torque. The control unit 14 determines that the second condition is satisfied, for example, when the torque momentarily becomes equal to or higher than the first torque. Specifically, the control unit 14 determines that the second condition is satisfied when the torque momentarily becomes equal to or higher than the first torque from the state where the torque is less than the predetermined torque. In other words, the control unit 14 determines that the second condition is satisfied when the torque becomes less than the first torque and becomes equal to or more than the first torque in the predetermined period. The control unit 14 may determine that the second condition is satisfied when the previously measured torque is less than the predetermined torque and the current torque is equal to or higher than the first torque. The first torque is 70 Nm or more. In one example, the first torque is 70 Nm. The predetermined torque is smaller than the first torque. In one example, the predetermined torque is 55 Nm. At least one of the first torque and the predetermined torque may be stored in the storage unit 16 so that the passenger can change the torque. When it is determined that the first predetermined condition is satisfied according to the satisfaction of the second condition, the control unit 14 controls the transmission device 20 to suppress the shift when the torque momentarily becomes equal to or higher than the first torque.

The control unit 14 determines that the third condition is satisfied, for example, when the slope of the road surface becomes equal to or larger than a predetermined slope. The predetermined gradient is 5% or more. In one example, the predetermined slope is 10%. The predetermined slope may be stored in the storage unit 16 so that the passenger can change the predetermined slope. The control unit 14 determines that the fourth condition is satisfied, for example, when the vehicle speed falls within a predetermined speed range. The predetermined speed range includes a speed range lower than the predetermined speed. Specifically, the predetermined speed range includes a speed range of 0 km/h or more and less than the predetermined speed. The predetermined speed is 15 km/h or less. In one example, the predetermined speed is 13 km/h or less. The predetermined speed range may be stored in the storage unit 16 so that the passenger can change the predetermined speed range. The control unit 14 determines that the fifth condition is satisfied, for example, when the gear ratio of the human-powered vehicle A becomes equal to or lower than a predetermined gear ratio. The predetermined gear ratio is less than or equal to the gear ratio corresponding to the fifth speed. In one example, the predetermined gear ratio is a gear ratio corresponding to the third speed. The predetermined gear ratio may be stored in the storage unit 16 so that the passenger can change it.

The control unit 14 controls the transmission 20 to suppress the shift, and then controls the transmission 20 to release the suppression of the shift according to at least one of the second reference value RV2 and the vehicle speed. In one example, when the second reference value RV2 is out of the predetermined range, the control unit 14 controls the transmission 20 so as to release the suppression of the shift. When the control of the shift is released, the control unit 14 controls the transmission 20 to allow the shift according to the shift condition. In the example in which the first reference value RV1 includes cadence, the control unit 14 controls the transmission device 20 to permit the shift-up shift according to the shift condition when the suppression of the shift-up shift is released. In an example in which the first reference value RV1 includes torque, the control unit 14 controls the transmission device 20 to permit the downshift according to the shift condition when the suppression of the downshift is released.

The second reference value RV2 includes torque. In one example, the control unit 14 controls the transmission device 20 to release the suppression of the shift when the torque becomes less than the second torque included in the outside of the predetermined range. In the present embodiment, the control unit 14 controls the transmission 20 to release the suppression of the shift when the torque becomes less than the second torque and the state continues for the first predetermined time. The second torque is 30 Nm or less. In one example, the second torque is 10 Nm. The first predetermined time is 5 seconds or less. In one example, the first predetermined time is 2 seconds. At least one of the second torque and the first predetermined time may be stored in the storage unit 16 so that the passenger can change the torque. The control unit 14 may control the transmission 20 so as to release the suppression of the shift when the first predetermined time has elapsed after the torque became less than the second torque.

When the torque becomes less than the third torque included in the outside of the predetermined range, the control unit 14 controls the transmission device 20 to release the suppression of the shift. In the present embodiment, the control unit 14 controls the transmission device 20 to release the suppression of the shift when the torque becomes less than the third torque and the state continues for the second predetermined time. The third torque is larger than the second torque. The third torque is 70 Nm or less. In one example, the third torque is 55 Nm. The second predetermined time is longer than the first predetermined time. The second predetermined time is 10 seconds or less. In one example, the second predetermined time is 5 seconds. At least one of the third torque and the second predetermined time may be stored in the storage unit 16 so that the passenger can change the torque. The control unit 14 may control the transmission 20 to release the suppression of the shift when the second predetermined time has elapsed after the torque became less than the third torque.

The second reference value RV2 includes cadence. In one example, the control unit 14 controls the transmission 20 to release the suppression of the shift when the cadence is equal to or greater than the second cadence included in the outside of the predetermined range. The second cadence is 100 rpm or more. In one example, the second cadence is 120 rpm. The second cadence may be stored in the storage unit 16 so that the passenger can change the second cadence.

When the vehicle speed becomes equal to or higher than a predetermined vehicle speed corresponding to the gear ratio of the human-powered vehicle A, the control unit 14 controls the transmission device 20 to release the suppression of the gear shift. The predetermined vehicle speed is, for example, a vehicle speed corresponding to the current gear ratio of the human-powered vehicle A when the cadence is the third cadence. In one example, the predetermined vehicle speed decreases as the current gear ratio of the human-powered vehicle A decreases, and the predetermined vehicle speed increases as the current gear ratio of the human-powered vehicle A increases. The third cadence coincides with the second cadence, for example. In one example, the third cadence is 120 rpm. The third cadence may be stored in the storage unit 16 so that the passenger can change the third cadence. In the present embodiment, the predetermined vehicle speed is a vehicle speed corresponding to the current gear ratio of the human-powered vehicle A when the cadence is 120 rpm. In this case, when the vehicle speed becomes equal to or higher than the predetermined vehicle speed according to the gear ratio of the manually driven vehicle A, the cadence becomes equal to or higher than the second cadence.

As shown in FIG. 2, the human-powered vehicle A further includes a detection device DD that detects various types of information. The detection device DD includes at least one of the first detection unit DD1, the second detection unit DD2, the third detection unit DD3, and the fourth detection unit DD4. The first detection unit DD1 is configured to detect information regarding the first reference value RV1, for example. In one example, the first detection unit DD1 includes various sensors that can detect the first reference value RV1. In the present embodiment, the first detection unit DD1 includes a sensor capable of detecting information regarding cadence. The first detection unit DD1 outputs information regarding the detected first reference value RV1 to the control unit 14.

The second detection unit DD2 is configured to detect information regarding the second reference value RV2, for example. In one example, the second detection unit DD2 includes various sensors that can detect the second reference value RV2. In the present embodiment, the second detection unit DD2 includes a sensor that can detect information about cadence and a sensor that can detect information about torque. The second detection unit DD2 outputs information regarding the detected second reference value RV2 to the control unit 14. The second detector DD2 may omit the sensor included in the first detector DD1. When all the sensors included in the second detection unit DD2 are included in the first detection unit DD1, the detection device DD may be configured by omitting the second detection unit DD2.

The third detection unit DD3 is configured to detect, for example, information regarding the vehicle speed. In one example, the third detection unit DD3 includes a sensor that can detect the vehicle speed. The third detection unit DD3 outputs information regarding the detected vehicle speed to the control unit 14. When the sensor capable of detecting the vehicle speed is included in the first detection unit DD1, the detection device DD may be configured by omitting the third detection unit DD3. The fourth detection unit DD4 is configured to detect, for example, information regarding the gradient of the road surface. In one example, the fourth detection unit DD4 includes a sensor that can detect the gradient of the road surface. The fourth detection unit DD4 outputs information about the detected road surface gradient to the control unit 14.

The automatic shift control executed by the control device 12 will be described with reference to FIG.
The control unit 14 executes the automatic shift control according to the following processing, for example. The control unit 14 acquires the first reference value RV1 in step S11. Specifically, the control unit 14 acquires information about cadence from the first detection unit DD1. In step S12, the control unit 14 determines whether or not the first reference value RV1 is greater than or equal to the first threshold value TH1. When it is determined in step S12 that the first reference value RV1 is equal to or greater than the first threshold value TH1, the control unit 14 proceeds to the process of step S13.

In step S13, the control unit 14 determines whether or not the current gear ratio of the human-powered vehicle A is the maximum gear ratio. When determining in step S13 that the current gear ratio of the human-powered vehicle A is the maximum gear ratio, the control unit 14 returns the process to step S11. When determining in step S13 that the current gear ratio of the human-powered vehicle A is not the maximum gear ratio, the control unit 14 proceeds to the process of step S14. In step S14, the control unit 14 controls the transmission 20 so that the gear ratio of the human-powered vehicle A increases.

When determining in step S12 that the first reference value RV1 is less than the first threshold value TH1, the control unit 14 proceeds to the process of step S15. In step S15, the control unit 14 determines whether the first reference value RV1 is less than the second threshold value TH2. When determining in step S15 that the first reference value RV1 is greater than or equal to the second threshold value TH2, the control unit 14 returns the process to step S11. When determining in step S15 that the first reference value RV1 is less than the second threshold value TH2, the control unit 14 proceeds to the process of step S16.

In step S16, the control unit 14 determines whether or not the current gear ratio of the human-powered vehicle A is the minimum gear ratio. When determining in step S16 that the current gear ratio of the human-powered vehicle A is the minimum gear ratio, the control unit 14 returns the process to step S11. When the control unit 14 determines in step S16 that the current gear ratio of the human-powered vehicle A is not the minimum gear ratio, the control unit 14 proceeds to the process of step S17. In step S17, the control unit 14 controls the transmission 20 so that the gear ratio of the human-powered vehicle A becomes small. Through the above processing, the processing from step S11 to step S17 is ended. The control unit 14 repeatedly executes the automatic shift control including the processes of steps S11 to S17 while the human-powered vehicle A is traveling, for example.

An example of the determination process regarding the first predetermined condition in the first gear shift suppression control executed by the control device 12 will be described with reference to FIG.
The control unit 14 executes the following processing in step S32 shown in FIG. 6, for example. In step S21, the control unit 14 determines whether or not the slope of the road surface is equal to or larger than a predetermined slope. When it is determined in step S21 that the road surface gradient is equal to or greater than the predetermined gradient, the control unit 14 proceeds to step S22. In step S22, the control unit 14 determines whether the torque momentarily becomes equal to or higher than the first torque. When it is determined in step S22 that the torque instantaneously becomes equal to or higher than the first torque, the control unit 14 proceeds to the process of step S23. In step S23, the control unit 14 determines whether the cadence instantaneously becomes equal to or higher than the first cadence. When it is determined in step S23 that the cadence instantaneously becomes equal to or higher than the first cadence, the control unit 14 proceeds to the process of step S24. In step S24, the control unit 14 determines whether the vehicle speed is within the predetermined speed range. When determining in step S24 that the vehicle speed is within the predetermined speed range, the control unit 14 proceeds to the process of step S25. In step S25, the control unit 14 determines whether the gear ratio of the human-powered vehicle A is less than or equal to a predetermined gear ratio. When determining in step S25 that the gear ratio of the human-powered vehicle A is equal to or lower than the predetermined gear ratio, the control unit 14 proceeds to the process of step S26. The control unit 14 determines in step S26 that the first predetermined condition is satisfied.

When it is determined in step S21 that the road surface slope is less than the predetermined slope, the control unit 14 proceeds to the process of step S27. When the control unit 14 determines in step S22 that the torque is not instantaneously greater than or equal to the first torque, the control unit 14 proceeds to the process of step S27. When the control unit 14 determines in step S23 that the cadence is not instantaneously greater than or equal to the first cadence, the control unit 14 proceeds to the process of step S27. When the control unit 14 determines in step S24 that the vehicle speed is outside the predetermined speed range, the control unit 14 proceeds to the process of step S27. When determining in step S25 that the gear ratio of the human-powered vehicle A is higher than the predetermined gear ratio, the control unit 14 proceeds to the process of step S27. The control unit 14 determines in step S27 that the first predetermined condition is not satisfied.

Through the above processing, the processing from step S21 to step S27 ends. The control unit 14 executes the processing from step S21 to step S27 in step S32 shown in FIG. The control unit 14 may appropriately change the order of the processes of steps S21 to S25 in the processes of steps S21 to S27. In the processes of steps S21 to S27 shown in FIG. 5, at least one of steps S21, S24, and S25 may be omitted. In this example, in the processes of steps S21 to S27 shown in FIG. 5, one of steps S22 and S23 may be further omitted. In the processes of steps S21 to S27 shown in FIG. 5, only one of steps S22 and S23 may be omitted.

The first gear shift suppression control executed by the control device 12 will be described with reference to FIG.
The control unit 14 executes the first shift suppression control according to the following processing, for example. The control part 14 acquires various information in step S31. Specifically, the control unit 14 acquires at least one of information about cadence, information about torque, information about vehicle speed, and information about slope from the detection device DD. The control unit 14 determines in step S32 whether or not the first predetermined condition is satisfied. When determining in step S32 that the first predetermined condition is not satisfied, the control unit 14 returns the process to step S31. When determining in step S32 that the first predetermined condition is satisfied, the control unit 14 proceeds to the processing of step S33. In step S33, the control unit 14 controls the transmission 20 so as to suppress the shift. In the present embodiment, the control unit 14 controls the transmission 20 so as to suppress the upshift.

In step S34, the control unit 14 determines whether the torque is less than the second torque. When it is determined in step S34 that the torque is less than the second torque, the control unit 14 proceeds to the process of step S35. When it is determined in step S34 that the torque is equal to or greater than the second torque, the control unit 14 proceeds to the process of step S36. In step S35, the control unit 14 determines whether the torque is less than the second torque for the first predetermined time. In one example, the control unit 14 further executes the same processing as in step S31 in step S35. The control unit 14 may perform the same process as step S31 in step S35 periodically or irregularly. In the process similar to step S31 in step S35, the control unit 14 may acquire only the information regarding the torque from the detection device DD. When the control unit 14 determines in step S35 that the torque is less than the second torque for the first predetermined time, the control unit 14 proceeds to the process of step S36. Specifically, the control unit 14 proceeds to the process of step S36 when the torque becomes equal to or higher than the second torque before the first predetermined time elapses. In step S35, the control unit 14 may determine whether the first predetermined time has elapsed since the torque became less than the second torque.

The control unit 14 determines whether the torque is less than the third torque in step S36. When the control unit 14 determines in step S36 that the torque is less than the third torque, the control unit 14 proceeds to the process of step S37. When it is determined in step S36 that the torque is equal to or greater than the third torque, the control unit 14 proceeds to the process of step S38. In step S37, the control unit 14 determines whether or not the torque is less than the third torque for the second predetermined time. In one example, the control unit 14 further executes the same processing as in step S31 in step S37. The control unit 14 may perform the same processing as step S31 in step S37 periodically or irregularly. In the same process as step S31 in step S37, the control unit 14 may acquire only the information regarding the torque from the detection device DD. When the control unit 14 determines in step S37 that the torque is less than the third torque for the second predetermined time, the control unit 14 proceeds to the process of step S38. Specifically, the control unit 14 proceeds to the process of step S38 when the torque becomes equal to or higher than the third torque before the second predetermined time elapses. In step S37, the control unit 14 may determine whether the second predetermined time has elapsed since the torque became less than the third torque.

The control unit 14 determines in step S38 whether the vehicle speed is equal to or higher than a predetermined vehicle speed. When determining in step S38 that the vehicle speed is less than the predetermined vehicle speed, the control unit 14 returns the process to step S34. In one example, the control unit 14 executes the same process as step S31 in the process of returning the process from step S38 to step S34. In the same processing as step S31, the control unit 14 may acquire only the elements related to the processing of steps S34 to S38 from the detection device DD. The control unit 14 may determine whether or not the cadence is the second cadence or more in step S38.

When determining in step S35 that the torque is less than the second torque for the first predetermined time, the control unit 14 proceeds to the process of step S39. When determining in step S37 that the torque is less than the third torque for the second predetermined time, the control unit 14 proceeds to the process of step S39. When determining in step S38 that the vehicle speed is equal to or higher than the predetermined vehicle speed, the control unit 14 proceeds to the process of step S39. In step S39, the control unit 14 controls the transmission 20 so as to release the suppression of the shift. In the present embodiment, the control unit 14 controls the transmission 20 so as to release the suppression of the shift-up shift.

Through the above processing, the processing from step S31 to step S39 ends. The control unit 14 repeatedly executes the first shift suppression control including the processes of steps S31 to S39 while the human-powered vehicle A is traveling, for example. In the processing from step S31 to step S39, the control unit 14 may appropriately change the order of the processing from step S34 to step S35, the processing from step S36 to step S37, and the processing from step S38. In the processing of steps S31 to S39 shown in FIG. 6, at least one processing of steps S35 and S37 may be omitted. In this example, one or two processes of step S34, step S36, and step S38 may be further omitted in the process of steps S31 to S39 shown in FIG. When the process of step S34 is omitted, the process of step S35 is omitted. When the process of step S36 is omitted, the process of step S37 is omitted. In the processing of steps S31 to S39 shown in FIG. 6, only the processing of step S38 may be omitted. The control unit 14 may replace the processing of steps S34 to S38 shown in FIG. 6 with the processing of step S54 shown in FIG. 8 in the first shift suppression control.

When an occupant who rides the human-powered vehicle A travels uphill, he/she may get over obstacles such as steps, rocks, and tree roots. In one example, the occupant pedals the pedal PD with a strong momentum to ride over the obstacle with the human-powered vehicle A. In this case, since the input to the human-powered vehicle A changes abruptly, a shift that is not intended by the passenger is likely to occur. In the speed change system 10 of the present embodiment, the speed change is suppressed according to the change in the second reference value RV2, so that the speed change not intended by the passenger can be suppressed. For this reason, it can contribute to comfortable driving of the human-powered vehicle A.

<Second Embodiment>
The transmission system 10 according to the second embodiment will be described with reference to FIGS. 7 and 8. The same components as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and the duplicate description will be omitted.

Instead of or in addition to the first shift suppression control, the control unit 14 controls the transmission 20 to suppress the shift and then controls the transmission 20 to release the suppression of the second shift. Execute control. The control unit 14 controls the transmission 20 to suppress the shift according to the amount of change in the second reference value RV2. In one example, the control unit 14 controls the transmission 20 so as to suppress the shift according to the instantaneous increase amount of the second reference value RV2.

The control unit 14 controls the transmission 20 to suppress the shift when the second predetermined condition is satisfied. The control unit 14 determines that the second predetermined condition is satisfied, for example, when at least one of the sixth condition and the seventh condition is satisfied. In the present embodiment, the control unit 14 determines that the second predetermined condition is satisfied when all of the sixth condition and the seventh condition are satisfied.

The second reference value RV2 includes cadence. The control unit 14 determines that the sixth condition is satisfied, for example, when the instantaneous increase amount of the cadence becomes the first increase amount. In other words, the control unit 14 determines that the sixth condition is satisfied when the increase amount of the cadence becomes the first increase amount in the predetermined period. The control unit 14 may determine that the sixth condition is satisfied when the increase amount of the current cadence with respect to the previously measured cadence becomes the first increase amount. The first increase amount is 10 rpm or more. In one example, the first increment is 10 rpm. The first increase amount may be stored in the storage unit 16 so that the passenger can change the amount. When it is determined that the second predetermined condition is satisfied according to the satisfaction of the sixth condition, the control unit 14 controls the transmission device 20 to suppress the shift when the instantaneous increase amount of the cadence becomes the first increase amount. Control.

The second reference value RV2 includes torque. The control unit 14 determines that the seventh condition is satisfied, for example, when the instantaneous increase amount of the torque reaches the second increase amount. In other words, the control unit 14 determines that the seventh condition is satisfied when the torque increase amount becomes the second increase amount in the predetermined period. The control unit 14 may determine that the seventh condition is satisfied when the current increase amount of the torque with respect to the previously measured torque reaches the second increase amount. The second increase amount is 10 Nm or more. In one example, the second increase amount is 10 Nm. The second increase amount may be stored in the storage unit 16 so that the passenger can change the amount. When it is determined that the second predetermined condition is satisfied according to the satisfaction of the seventh condition, the control unit 14 controls the transmission device 20 to suppress the shift when the instantaneous increase amount of the torque reaches the second increase amount. Control.

The control unit 14 controls the transmission 20 to release the suppression of the shift when a predetermined time has elapsed after controlling the transmission 20 to suppress the shift. The predetermined time is 10 seconds or less. In one example, the predetermined time is 5 seconds. The predetermined time may be stored in the storage unit 16 so that the passenger can change the predetermined time. When the control of the shift is released, the control unit 14 controls the transmission 20 to allow the shift according to the shift condition. After controlling the transmission 20 to suppress the shift, the control unit 14 may also control the transmission 20 to release the suppression of the shift in accordance with at least one of the second reference value RV2 and the vehicle speed. Good.

An example of the determination process regarding the second predetermined condition in the second gear shift suppression control executed by the control device 12 will be described with reference to FIG. 7.
The control unit 14 executes the following processing in step S52 shown in FIG. 8, for example. In step S41, the control unit 14 determines whether or not the instantaneous increase amount of the cadence is the first increase amount. When it is determined in step S41 that the instantaneous increase amount of the cadence is the first increase amount, the control unit 14 proceeds to the process of step S42. In step S42, the control unit 14 determines whether or not the instantaneous increase amount of torque has reached the second increase amount. When the control unit 14 determines in step S42 that the instantaneous increase amount of torque has reached the second increase amount, the control unit 14 proceeds to the process of step S43. The control unit 14 determines in step S43 that the second predetermined condition is satisfied.

When determining in step S41 that the instantaneous increase amount of the cadence is not the first increase amount, the control unit 14 proceeds to the process of step S44. When the control unit 14 determines in step S42 that the instantaneous increase amount of torque is not the second increase amount, the control unit 14 proceeds to the process of step S44. The control unit 14 determines in step S44 that the second predetermined condition is not satisfied.

Through the above processing, the processing from step S41 to step S44 ends. The control unit 14 executes the processing from step S41 to step S44 in step S52 shown in FIG. The control unit 14 may appropriately change the order of the processes of steps S41 and S42 in the processes of steps S41 to S44. In the processes of steps S41 to S44 shown in FIG. 7, one of steps S41 and S42 may be omitted.

The second shift suppression control executed by the control device 12 will be described with reference to FIG. 8.
The control unit 14 executes the second shift suppression control according to the following processing, for example. The control part 14 acquires various information in step S51. Specifically, the control unit 14 acquires at least one of the information about the cadence and the information about the torque from the detection device DD. The control unit 14 determines in step S52 whether or not the second predetermined condition is satisfied. When determining in step S52 that the second predetermined condition is not satisfied, the control unit 14 returns the process to step S51. When determining in step S52 that the second predetermined condition is satisfied, the control unit 14 proceeds to the process of step S53. In step S53, the control unit 14 controls the transmission 20 so as to suppress the shift. In the present embodiment, the control unit 14 controls the transmission 20 so as to suppress the upshift.

In step S54, the control unit 14 determines whether or not a predetermined time has elapsed after controlling the transmission 20 so as to suppress the shift. When determining in step S54 that the predetermined time has not elapsed, the control unit 14 repeats the process of step S54. When determining in step S54 that the predetermined time has elapsed, the control unit 14 proceeds to the processing of step S55. In step S55, the control unit 14 controls the transmission 20 so as to release the suppression of the shift. In the present embodiment, the control unit 14 controls the transmission 20 so as to release the suppression of the shift-up shift.

Through the above processing, the processing from step S51 to step S55 ends. The control unit 14 repeatedly executes the second shift suppression control including the processes of steps S51 to S55 while the human-powered vehicle A is traveling, for example. The control unit 14 may replace the process of step S54 shown in FIG. 8 with the process of steps S34 to S38 shown in FIG. 6 in the second shift suppression control. In this case, the control unit 14 may appropriately change the order of the processing of steps S34 to S35, the processing of steps S36 to S37, and the processing of step S38. Further, in the processing of steps S31 to S38 shown in FIG. 6, steps that can be omitted may be omitted as appropriate.

<Modification>
The above description regarding each embodiment is an example of a form that the control device and the transmission system according to the present invention can take, and is not intended to limit the form. The control device and the speed change system according to the present invention can take a form in which, for example, a modified example of each of the above-described embodiments described below and at least two modified examples that do not contradict each other are combined. In the following modified examples, the parts common to those of the respective embodiments are designated by the same reference numerals and the description thereof will be omitted.

The type of the first reference value RV1 can be changed arbitrarily. In the first example, the first reference value RV1 includes environmental information regarding the traveling environment of the human-powered vehicle A. The environmental information includes at least one of road surface information regarding a road surface condition, air resistance information regarding air resistance, weather information regarding weather, and temperature information regarding temperature. In the second example, the first reference value RV1 includes traveling information and environment information.

The type of the second reference value RV2 can be changed arbitrarily. In one example, the second reference value RV2 includes traveling information regarding the traveling state of the human-powered vehicle. In this case, the second reference value RV2 includes at least one of cadence, torque acting on the crank C of the human-powered vehicle A, vehicle speed, acceleration, and power.

-The type of the human-powered vehicle A can be arbitrarily changed. In the first example, the human-powered vehicle A is a road bike, mountain bike, cross bike, city cycle, cargo bike, or recumbent. In the second example, the human-powered vehicle A is a kick skater.

10... Transmission system, 12... Control device, 14... Control part, 20... Transmission device, A... Man-powered vehicle, C... Crank, RV1... 1st reference value, RV2... 2nd reference value, TH... Threshold value, TH1... First threshold value (threshold value).

Claims (25)

A control unit that controls the transmission so as to change the gear ratio of the human-powered vehicle according to a gear change condition defined based on the first reference value;
The control device, wherein the control unit controls the transmission device to suppress a shift according to a change in a second reference value regarding an input to the human-powered vehicle. The control unit performs at least one of a shift-up shift in which a gear ratio of the human-powered vehicle increases and a shift-down gear in which a gear ratio of the human-driven vehicle decreases in accordance with a change in the second reference value. The control device according to claim 1, wherein the transmission is controlled so as to be suppressed. The control device according to claim 2, wherein the first reference value includes traveling information regarding a traveling state of the human-powered vehicle. The control device according to claim 3, wherein the traveling information includes at least one of cadence, torque acting on a crank of the human-powered vehicle, vehicle speed, acceleration, and power. The first reference value includes the cadence,
The control device according to claim 4, wherein the control unit controls the transmission device to suppress the shift-up shift according to a change in the second reference value. The first reference value includes the torque,
The control device according to claim 4, wherein the control unit controls the transmission device to suppress the shift-down shift according to a change in the second reference value. 7. The control device according to claim 1, wherein the second reference value includes at least one of cadence, torque acting on a crank of the human-powered vehicle, and power. The control device according to claim 7, wherein the control unit controls the transmission device to suppress a shift according to an instantaneous increase in the second reference value. The second reference value includes the cadence,
The control device according to claim 8, wherein the control unit controls the transmission device to suppress a shift when the cadence instantaneously becomes equal to or higher than the first cadence. The control device according to claim 9, wherein the first cadence is set on the basis of a threshold value for shift-up shift that defines the shift condition. The second reference value includes the torque,
The control device according to any one of claims 8 to 10, wherein the control unit controls the transmission so as to suppress a shift when the torque instantaneously becomes equal to or higher than the first torque. The control device according to claim 11, wherein the first torque is 70 Nm or more. The control device according to any one of claims 7 to 12, wherein the control unit controls the transmission device to suppress a shift according to a change amount of the second reference value. The control device according to claim 13, wherein the control unit controls the transmission device to suppress a shift according to an instantaneous increase amount of the second reference value. The second reference value includes the cadence,
The control device according to claim 14, wherein the control unit controls the transmission device to suppress a shift when the instantaneous increase amount of the cadence reaches a first increase amount. The second reference value includes the torque,
The control device according to claim 14 or 15, wherein the control unit controls the transmission device to suppress a shift when the instantaneous increase amount of the torque reaches a second increase amount. 17. The control unit controls the transmission according to a change in the second reference value and at least one of a vehicle speed and a gradient of a road surface so as to suppress a shift. The control device according to. The control unit controls the transmission to suppress the shift and then controls the transmission to release the suppression of the shift according to at least one of the second reference value and the vehicle speed. Item 18. The control device according to any one of items 1 to 17. The control device according to claim 18, wherein the control unit controls the transmission so as to release the suppression of the shift when the second reference value is out of the predetermined range. The second reference value includes torque,
20. The control device according to claim 19, wherein the control unit controls the transmission to release the suppression of the shift when the torque becomes less than the second torque included in the outside of the predetermined range. When the torque is less than a third torque included in the outside of the predetermined range, the control unit controls the transmission to release the suppression of the shift,
The control device according to claim 20, wherein the third torque is larger than the second torque. The second reference value includes cadence,
The control according to any one of claims 19 to 21, wherein the control unit controls the transmission so as to release the suppression of the shift when the cadence is equal to or more than the second cadence included in the outside of the predetermined range. apparatus. 23. The control unit controls the transmission to release the suppression of the shift when the vehicle speed is equal to or higher than a predetermined vehicle speed according to the gear ratio of the human-powered vehicle. The control device described. 24. The control unit controls the transmission so as to release the suppression of the shift when a predetermined time has elapsed after controlling the transmission so as to suppress the shift. The control device according to. A control device according to any one of claims 1 to 24;
A transmission system including the transmission.