DE102016007525A1 - Bicycle derailleur control apparatus - Google Patents

Abstract

In particular, in order to provide a bicycle transmission control apparatus which can perform shift control according to the traveling environment of the bicycle, the invention provides a bicycle transmission control apparatus including a controller which operates a derailleur according to a parameter representing a traveling state of a bicycle and predetermined shifting conditions Controller sets the shift condition based on the parameter, representing a running state of the bicycle and a tilt angle of the bicycle.

Description

This application claims the priority of Japanese Patent Application 2015-127964 , filed on 25 June 2015 and the Japanese Patent Application 2015-228937 , filed on 24 November 2015 ,. The entire revelation of Japanese Patent Application 2015-127964 and 2015-228937 are hereby incorporated by reference.

The present invention relates to a bicycle transmission control apparatus.

Conventionally, a bicycle transmission control apparatus is known which controls the derailleur. The bicycle transmission control apparatus the Japanese Patent Publication Hei 10-511621 controls a derailleur based on a rotational frequency of the crank so that the rotational frequency of a crank is held in a predetermined range.

A suitable method of controlling the derailleur is different depending on the travel environment of the bicycle, between e.g. As an uphill and a different driving than uphill. However, the inclination angle is not considered in controlling the derailleur in the Japanese Patent Publication Hei 10-511621 ,

• [1] Der Fahrradschaltwerksteuerapparat gemäß einer Ausführungsform der vorliegenden Erfindung umfasst einen Steuerer, ausgestaltet zum Steuern eines Schaltwerks gemäß einem Parameter, welcher einen Reisezustand eines Fahrrades darstellt, und vorbestimmten Schaltbedingungen, wobei der Steuerer ausgestaltet ist/wird zum Einstellen der vorbestimmten Schaltbedingung basierend auf dem Parameter, darstellend einen Fahrzustand des Fahrrades, sowie einem Neigungswinkel des Fahrrades.
• [2] Gemäß einem Beispiel des Fahrradschaltwerkapparats umfasst die vorbestimmte Schaltbedingung einen Schwellenwert hinsichtlich des Parameters, darstellend den Fahrzustand des Fahrrades, und ist/wird der Steuerer ausgestaltet zum Einstellen der vorbestimmten Schaltbedingung durch Wechseln des Schwellenwerts.
• [3] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließt der Schwellenwert einen ersten Schwellenwert ein sowie einen zweiten Schwellenwert, welcher kleiner ist als der erste Schwellenwert, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks, wenn ein Wert eines Parameters, darstellend den Fahrzustand des Fahrrades, wechselt von einem Wert, welcher kleiner ist als der erste Schwellenwert, hin zu einem Wert, welcher größer oder gleich dem ersten Schwellenwert ist, oder wenn der Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wechselt von einem den zweiten Schwellenwert überschreitenden Wert hin zu einem Wert welcher kleiner oder gleich dem zweiten Schwellenwert ist.
• [4] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Steuern des Schaltwerks, so dass das Gangverhältnis des Fahrrades zunimmt, wenn der Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wechselt von einem Wert, welcher kleiner ist als der erste Schwellenwert, hin zu einem Wert, welcher größer oder gleich dem ersten Schwellenwert ist, und zum Steuern des Schaltwerks, so dass das Gangverhältnis des Fahrrades abnimmt, wenn der Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wechselt von einem den zweiten Schwellenwert überschreitenden Wert hin zu einem Wert, welcher kleiner oder gleich dem zweiten Schwellenwert ist.
• [5] Gemäß einem Beispiel des Fahrradschaltwerkapparats umfasst die vorbestimmte Schaltbedingung eine erste Schaltbedingung, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks basierend auf dem Parameter, welcher den Fahrzustand des Fahrrades darstellt, des Fahrrades, und der ersten Schaltbedingung, wenn der Neigungswinkel größer oder gleich einem ersten vorbestimmten Winkel ist, welcher null Grad überschreitet.
• [6] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer weiter ausgestaltet zum Einstellen der ersten Schaltbedingung durch Wechseln zumindest des zweiten Schwellenwerts, basierend auf dem Neigungswinkel, welcher größer oder gleich dem ersten vorbestimmten Winkel ist, und auf einer Tatsache, dass der Neigungswinkel gewechselt hat.
• [7] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der ersten Schaltbedingung durch Anheben zumindest des zweiten Schwellenwerts, basierend auf der Wechselrate, welche größer oder gleich einem ersten Verhältnis ist, wenn der Neigungswinkel gewechselt hat in einer zunehmenden Richtung, oder dem Wechselausmaß, welches größer oder gleich einem ersten Wechselausmaß ist, wenn der Neigungswinkel gewechselt hat in einer zunehmenden.
• [8] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der ersten Schaltbedingung durch Absenken zumindest des zweiten Schwellenwerts, basierend auf der Wechselrate, welche größer oder gleich einem zweiten Verhältnis ist, wenn der Neigungswinkel gewechselt hat in einer abnehmenden Richtung, oder dem Wechselausmaß, welches größer oder gleich einem zweiten Wechselausmaß ist, wenn der Neigungswinkel gewechselt hat in einer abnehmenden Richtung.
• [9] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der ersten Schaltbedingung, wenn der Neigungswinkel größer oder gleich dem ersten vorbestimmten Winkel ist, basierend auf einer angehobenen Reisedistanz des Fahrrades, welche größer oder gleich einer ersten Reisedistanz ist, oder einer abgelaufenen Reisezeit des Fahrrades, welche größer oder gleich einer ersten Reisezeit ist.
• [10] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der ersten Schaltbedingung, basierend auf einem Parameter, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel, hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel ist.
• [11] Gemäß einem Beispiel des Fahrradschaltwerkapparats ist der erste Schwellenwert in der ersten Schaltbedingung größer als der Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel ist, und ist der zweite Schwellenwert in der ersten Schaltbedingung größer als der Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel, hin zu einem Wert welcher größer oder gleich dem ersten vorbestimmten Winkel ist.
• [12] Gemäß einem Beispiel des Fahrradschaltwerkapparats ist die Differenz zwischen dem Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel, hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel ist, und dem zweiten Schwellenwert in der ersten Schaltbedingung kleiner als die Differenz zwischen dem Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel, hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel ist, und dem ersten Schwellenwert in der ersten Schaltbedingung.
• [13] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließen die vorbestimmten Schaltbedingungen eine zweite Schaltbedingung ein, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks basierend auf dem Parameter, welcher den Fahrzustand des Fahrrades des Fahrrades darstellt, und der zweiten Schaltbedingung, wenn der Neigungswinkel null Grad überschreitet und kleiner ist als der erste vorbestimmte Winkel.
• [14] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließen die vorbestimmten Schaltbedingungen eine dritte Schaltbedingung ein, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks basierend auf dem Parameter, welcher den Fahrzustand des Fahrrades des Fahrrades darstellt, und der dritten Schaltbedingung, wenn der Neigungswinkel kleiner oder gleich einem zweiten vorbestimmten Winkel ist, welcher kleiner ist als null Grad.
• [15] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der dritten Schaltbedingung durch Wechseln zumindest des ersten Schwellenwerts basierend auf dem Neigungswinkel, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel ist, und auf der Tatsache, dass der Neigungswinkel gewechselt hat.
• [16] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der dritten Schaltbedingung durch Absenken zumindest des ersten Schwellenwerts, basierend auf der Wechselrate, welche größer oder gleich einem dritten Verhältnis ist, wenn der Neigungswinkel gewechselt hat in einer abnehmenden Richtung, oder dem Wechselausmaß, welches größer oder gleich einem dritten Wechselausmaß ist, wenn der Neigungswinkel gewechselt hat in einer abnehmenden Richtung.
• [17] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der dritten Schaltbedingung durch Anheben zumindest des ersten Schwellenwerts, basierend auf der Wechselrate, welche größer oder gleich einem vierten Verhältnis ist, wenn der Neigungswinkel gewechselt hat in einer zunehmenden Richtung, oder dem Wechselausmaß, welches größer oder gleich einem vierten Wechselausmaß ist, wenn der Neigungswinkel gewechselt hat in einer zunehmenden Richtung.
• [18] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der dritten Schaltbedingung, wenn der Neigungswinkel kleiner oder gleich dem zweiten vorbestimmten Winkel ist, basierend auf einer angehobenen Reisedistanz des Fahrrades, welche größer oder gleich einer zweiten Reisedistanz ist, oder einer abgelaufenen Reisezeit des Fahrrades, welche größer oder gleich einer zweiten Reisezeit ist.
• [19] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Einstellen der dritten Schaltbedingung, basierend auf einem Parameter, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher den zweiten vorbestimmten Winkel überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel ist.
• [20] Gemäß einem Beispiel des Fahrradschaltwerkapparats ist der erste Schwellenwert in der dritten Schaltbedingung kleiner als der Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher den zweiten vorbestimmten Winkel überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel ist, und der zweite Schwellenwert in der dritten Schaltbedingung kleiner ist als der Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher den zweiten vorbestimmten Winkel überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel ist.
• [21] Gemäß einem Beispiel des Fahrradschaltwerkapparats ist eine Differenz zwischen dem Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher den zweiten vorbestimmten Winkel überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel ist, und dem zweiten Schwellenwert in der dritten Schaltbedingung größer als die Differenz zwischen dem Wert des Parameters, darstellend den Fahrzustand des Fahrrades, wenn der Neigungswinkel wechselt von einem Wert, welcher den zweiten vorbestimmten Winkel überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel ist, und dem ersten Schwellenwert in der dritten Schaltbedingung.
• [22] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließen die vorbestimmten Schaltbedingungen eine vierte Schaltbedingung ein, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks basierend auf dem Parameter, welcher den Fahrzustand des Fahrrades des Fahrrades darstellt, und der vierten Schaltbedingung, wenn der Neigungswinkel kleiner ist als null Grad und den zweiten vorbestimmten Winkel überschreitet.
• [23] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließen die vorbestimmten Schaltbedingungen eine fünfte Schaltbedingung ein, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks basierend auf dem Parameter, welcher den Fahrzustand des Fahrrades des Fahrrades darstellt, und der fünften Schaltbedingung, bis der den Fahrzustand des Fahrrades darstellende Wert einen vorbestimmten Wert erreicht bei einem Starten ausgehend von einem Zustand, in welchem das Fahrrad gestoppt ist/wird.
• [24] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließt der Schwellenwert in der fünften Schaltbedingung einen dritten Schwellenwert und einen vierten Schwellenwert ein, entspricht der dritte Schwellenwert einem ersten Gangverhältnis, und ist das vierte Gangverhältnis größer als der dritte Schwellenwert und entspricht einem zweiten Gangverhältnis, welches größer ist als das Gangverhältnis.
• [25] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließen die vorbestimmten Schaltbedingungen eine sechste Schaltbedingung ein, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks, wenn ein Signal zum Anheben des Gangverhältnisses des Fahrrades seitens der Betätigungseinheit eingegeben ist/wird, stellt die sechste Schaltbedingung ein basierend auf dem Parameter, darstellend den Fahrzustand des Fahrrades unmittelbar nach einem Betätigen des Schaltwerks, und betätigt das Schaltwerk basierend auf dem Parameter, darstellend den Fahrzustand des Fahrrades, und der sechsten Schaltbedingung.
• [26] Gemäß einem Beispiel des Fahrradschaltwerkapparats schließen die vorbestimmten Schaltbedingungen eine siebte Schaltbedingung ein, und ist/wird der Steuerer ausgestaltet zum Betätigen des Schaltwerks, wenn ein Signal zum Absenken des Gangverhältnisses des Fahrrades seitens der Betätigungseinheit eingegeben ist/wird, stellt die siebte Schaltbedingung ein basierend auf dem Parameter, darstellend den Fahrzustand des Fahrrades vor einem Betätigen des Schaltwerks, und betätigt das Schaltwerk basierend auf dem Parameter, darstellend den Fahrzustand des Fahrrades, und der siebten Schaltbedingung.
• [27] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Verhindern einer Steuerung des Schaltwerks gemäß dem Parameter, darstellend den Fahrzustand des Fahrrades, und der vorbestimmten Schaltbedingung, bis eine vorbestimmte Zeitspanne abgelaufen ist, nachdem eine Beschleunigung, welche im Fahrrad erzeugt ist/wird, eine vorbestimmte Beschleunigung überschreitet.
• [28] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird die vorbestimmte Zeitspanne eingestellt basierend auf dem Ausmaß der Beschleunigung.
• [29] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist der Parameter, darstellend den Fahrzustand des Fahrrades, zumindest eine von einer Drehfrequenz einer Fahrradkurbel des Fahrrades und einer Reisegeschwindigkeit des Fahrrades.
• [30] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Berechnen der Drehfrequenz der Kurbel basierend auf einer Ausgabe eines Sensors, welcher die Drehfrequenz der Fahrradkurbel detektiert.
• [31] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Berechnen der Drehfrequenz der Kurbel basierend auf einer Ausgabe eines Sensors, welches die Fahrzeuggeschwindigkeit des Fahrrades detektiert.
• [32] Gemäß einem Beispiel des Fahrradschaltwerksteuerapparats ist/wird der Steuerer ausgestaltet zum Berechnen des Neigungswinkels basierend auf einer Ausgabe eines Neigungssensor, welcher den Neigungswinkel des Fahrrades detektiert.
• [33] Gemäß einem Beispiel des Fahrradschaltwerkapparats ist der Neigungswinkel des Fahrrades ein Neigungswinkel in der Längsrichtung des Fahrrades.
• [34] Gemäß einem Beispiel des Fahrradschaltwerkapparats ist der Neigungswinkel des Fahrrades ein Steigungswinkel des Fahrrades.

An object of the present invention is to provide a bicycle transmission apparatus which can perform a shift control according to the traveling environment of the bicycle.

• [1] The bicycle transmission control apparatus according to an embodiment of the present invention includes a controller configured to control a derailleur according to a parameter representing a traveling condition of a bicycle and predetermined shifting conditions, wherein the controller is configured to set the predetermined shifting condition based on the Parameter, representing a driving condition of the bicycle, as well as a tilt angle of the bicycle.
• [2] According to an example of the bicycle transmission apparatus, the predetermined shift condition includes a threshold value with respect to the parameter representing the running state of the bicycle, and the controller is configured to set the predetermined shift condition by changing the threshold value.
• [3] According to an example of the bicycle transmission apparatus, the threshold value includes a first threshold value and a second threshold value smaller than the first threshold value, and the controller is configured to operate the derailleur when a value of a parameter representing the driving state of the derailleur A bicycle changes from a value less than the first threshold to a value greater than or equal to the first threshold, or when the value of the parameter representing the driving condition of the bicycle changes from a value exceeding the second threshold to a value which is less than or equal to the second threshold.
• [4] According to an example of the bicycle transmission control apparatus, the controller is configured to control the derailleur so that the gear ratio of the bicycle increases as the value of the parameter representing the running state of the bicycle changes from a value smaller than the first one Threshold, to a value which is greater than or equal to the first threshold, and for controlling the derailleur, so that the gear ratio of the bicycle decreases when the value of the parameter, representing the driving condition of the bicycle, changes from a value exceeding the second threshold to a value that is less than or equal to the second threshold.
• [5] According to an example of the bicycle transmission apparatus, the predetermined shift condition includes a first shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle, the bicycle, and the first shift condition when the tilt angle is greater than or equal to a first predetermined angle exceeding zero degrees.
• [6] According to an example of the bicycle transmission control apparatus, the controller is further configured to set the first shifting condition by changing at least the second threshold based on the inclination angle which is greater than or equal to the first predetermined angle, and on a fact that the inclination angle has changed.
• [7] According to an example of the bicycle transmission control apparatus, the controller is configured to set the first shifting condition by raising at least the second threshold based on on the change rate which is greater than or equal to a first ratio when the inclination angle has changed in an increasing direction, or the change amount which is greater than or equal to a first change amount when the inclination angle has changed in an increasing one.
• [8] According to an example of the bicycle transmission control apparatus, the controller is configured to set the first shifting condition by lowering at least the second threshold based on the shifting rate which is greater than or equal to a second ratio when the tilting angle has changed in a decreasing direction, or the amount of change that is greater than or equal to a second change amount when the inclination angle has changed in a decreasing direction.
• [9] According to an example of the bicycle transmission control apparatus, the controller is configured to set the first shifting condition when the inclination angle is greater than or equal to the first predetermined angle based on a raised travel distance of the bicycle greater than or equal to a first travel distance, or an expired travel time of the bicycle which is greater than or equal to a first travel time.
• [10] According to an example of the bicycle transmission control apparatus, the controller is configured to set the first shifting condition based on a parameter representing the running state of the bicycle Fahrrades, when the inclination angle changes from a value which is smaller than the first predetermined angle, to a value which is greater than or equal to the first predetermined angle.
• [11] According to an example of the bicycle transmission apparatus, the first threshold in the first shift condition is greater than the value of the parameter representing the running state of the bicycle when the tilt angle changes from a value smaller than the first predetermined angle toward a value. which is greater than or equal to the first predetermined angle, and the second threshold in the first shifting condition is greater than the value of the parameter representing the running condition of the bicycle when the tilting angle changes from a value smaller than the first predetermined angle to a value which is greater than or equal to the first predetermined angle.
• [12] According to an example of the bicycle transmission apparatus, the difference between the value of the parameter representing the running state of the bicycle when the inclination angle changes from a value smaller than the first predetermined angle to a value greater than or equal to first predetermined angle, and the second threshold in the first switching condition is smaller than the difference between the value of the parameter representing the running condition of the bicycle when the tilt angle changes from a value smaller than the first predetermined angle to a value , which is greater than or equal to the first predetermined angle, and the first threshold in the first switching condition.
• [13] According to an example of the bicycle transmission apparatus, the predetermined shift conditions include a second shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle of the bicycle and the second shift condition when the tilt angle exceeds zero degrees and is smaller than the first predetermined angle.
• [14] According to an example of the bicycle transmission apparatus, the predetermined shift conditions include a third shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle of the bicycle and the third shift condition when the tilt angle is less than or equal to a second predetermined angle which is less than zero degrees.
• [15] According to an example of the bicycle transmission control apparatus, the controller is configured to set the third shift condition by changing at least the first threshold based on the inclination angle which is smaller than or equal to the second predetermined angle, and on the fact that the inclination angle has changed ,
• [16] According to an example of the bicycle transmission control apparatus, the controller is configured to set the third shifting condition by decreasing at least the first threshold based on the shifting rate which is greater than or equal to a third ratio when the tilting angle has changed in a decreasing direction, or the amount of change that is greater than or equal to a third change amount when the inclination angle has changed in a decreasing direction.
• [17] According to an example of the bicycle transmission control apparatus, the controller is configured to set the third shifting condition by increasing at least the first threshold based on the shifting rate which is greater than or equal to a fourth ratio when the tilting angle has changed in an increasing direction, or the amount of change that is greater than or equal to a fourth change amount when the inclination angle has changed in an increasing direction.
• [18] According to an example of the bicycle transmission control apparatus, the controller is configured to set the third shift condition when the inclination angle is less than or equal to the second predetermined angle, based on a raised travel distance of the bicycle that is greater than or equal to a second travel distance, or an expired travel time of the bicycle which is greater than or equal to a second travel time.
• [19] According to an example of the bicycle transmission control apparatus, the controller is configured to set the third shift condition based on a parameter representing the running condition of the bicycle when the pitch angle changes from a value exceeding the second predetermined angle to a value which is less than or equal to the second predetermined angle.
• [20] According to an example of the bicycle transmission apparatus, the first threshold in the third shift condition is smaller than the value of the parameter representing the running state of the bicycle when the tilt angle changes from a value exceeding the second predetermined angle to a value which is less than or equal to the second predetermined angle, and the second threshold in the third shift condition is smaller than the value of the parameter representing the running state of the bicycle when the tilt angle changes from a value exceeding the second predetermined angle to a value which is less than or equal to the second predetermined angle.
• [21] According to an example of the bicycle transmission apparatus, a difference between the value of the parameter representing the running state of the bicycle when the inclination angle changes from a value exceeding the second predetermined angle to a value smaller than or equal to the second predetermined one Angle is, and the second threshold in the third switching condition greater than the difference between the value of the parameter, representing the driving condition of the bicycle, when the inclination angle changes from a value which exceeds the second predetermined angle, to a value which is smaller or is equal to the second predetermined angle, and the first threshold in the third switching condition.
• [22] According to an example of the bicycle transmission apparatus, the predetermined shift conditions include a fourth shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle of the bicycle and the fourth shift condition when the tilt angle is less than zero degrees and exceeds the second predetermined angle.
• [23] According to an example of the bicycle transmission apparatus, the predetermined shifting conditions include a fifth shifting condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle of the bicycle and the fifth shifting condition until that Driving state of the bicycle representing value reaches a predetermined value at a starting from a state in which the bicycle is stopped / is.
• [24] According to an example of the bicycle transmission apparatus, in the fifth shifting condition, the threshold includes a third threshold and a fourth threshold, the third threshold corresponds to a first gear ratio, and the fourth gear ratio is greater than the third threshold and corresponds to a second gear ratio which is larger is as the gear ratio.
• [25] According to an example of the bicycle transmission apparatus, the predetermined shifting conditions include a sixth shifting condition, and the controller is configured to operate the derailleur when a signal for raising the gear ratio of the bicycle is inputted from the operating unit sets the sixth shifting condition 1 based on the parameter representing the running state of the bicycle immediately after an operation of the derailleur, and operates the derailleur based on the parameter, representing the driving condition of the bicycle, and the sixth switching condition.
• [26] According to an example of the bicycle transmission apparatus, the predetermined shifting conditions include a seventh shifting condition, and the controller is configured to operate the derailleur when a signal for lowering the gear ratio of the bicycle is inputted from the operating unit sets the seventh shifting condition on the basis of the parameter, representing the driving condition of the bicycle before operating the derailleur, and operating the derailleur based on the parameter representing the driving condition of the bicycle and the seventh shifting condition.
• [27] According to an example of the bicycle transmission control apparatus, the controller is configured to prohibit control of the derailleur according to the parameter representing the running state of the bicycle and the predetermined shifting condition until a predetermined period of time has elapsed after an acceleration generated in the bicycle is / exceeds a predetermined acceleration.
• [28] According to an example of the bicycle transmission control apparatus, the predetermined period of time is set based on the amount of acceleration.
• [29] According to an example of the bicycle transmission control apparatus, the parameter representing the running state of the bicycle is at least one of a rotational frequency of a bicycle crank of the bicycle and a cruising speed of the bicycle.
• [30] According to an example of the bicycle transmission control apparatus, the controller is configured to calculate the rotational frequency of the crank based on an output of a sensor that detects the rotational frequency of the bicycle crank.
• [31] According to an example of the bicycle transmission control apparatus, the controller is configured to calculate the rotational frequency of the crank based on an output of a sensor that detects the vehicle speed of the bicycle.
• [32] According to an example of the bicycle transmission control apparatus, the controller is configured to calculate the inclination angle based on an output of a tilt sensor that detects the inclination angle of the bicycle.
• [33] According to an example of the bicycle transmission apparatus, the inclination angle of the bicycle is a inclination angle in the longitudinal direction of the bicycle.
• [34] According to an example of the bicycle transmission apparatus, the inclination angle of the bicycle is a pitch angle of the bicycle.

The bicycle control apparatus of the present invention is capable of performing a shift control according to the traveling environment of the bicycle.

BRIEF DESCRIPTION OF THE DRAWINGS

1 FIG. 10 is a side elevational view of a bicycle equipped with a bicycle control apparatus according to a first embodiment. FIG.

2 is a side elevational view of a rear portion of the bicycle, shown in FIG 1 which includes a bicycle derailleur which is mounted on the bicycle

3 FIG. 12 is a block diagram of the bicycle control apparatus for the bicycle transmission mounted on the bicycle shown in FIG 1 ,

4 FIG. 10 is a flowchart of the calculation process of the tilt angle executed by the controller of FIG 3 ,

5 FIG. 14 is a flowchart of a first set of steps of the shifting operation executed by the controller of FIG 3 ,

6 FIG. 14 is a flowchart of a second set of steps of the shift operation executed by the controller of FIG 3 ,

7 FIG. 10 is a flowchart of a third set of steps of the shift operation executed by the controller of FIG 3 ,

8th FIG. 14 is a flowchart of a fourth set of steps of the shift operation executed by the controller of FIG 3 ,

9 FIG. 10 is a flowchart of a fifth set of steps of the shifting operation executed by the controller of FIG 3 ,

10 FIG. 10 is a flowchart of a sixth set of steps of the shift operation performed by the controller according to a second embodiment. FIG.

11 FIG. 10 is a flowchart of a seventh set of steps of the shift operation performed by the controller of the second embodiment. FIG.

12 FIG. 10 is a flowchart of an eighth set of steps of the shift operation performed by the controller of the second embodiment. FIG.

13 FIG. 12 is a flowchart of a modified example of the fifth set of steps of the shifting operation of the first embodiment. FIG.

14 FIG. 10 is a flowchart of a modified example of the first set of steps of the shifting operation of the first embodiment. FIG.

15 Fig. 10 is a block diagram of a transmission control apparatus of a modified example of the first embodiment.

The configuration of a bicycle equipped with a bicycle transmission control apparatus according to a first embodiment will be described with reference to FIG 1 ,

The bike 10 includes a front wheel 12 , a rear wheel 14 , a vehicle body 16 , a drive mechanism 18 , an operating unit 20 , and a transmission control unit 50 ,

The vehicle body 16 includes a frame 24 , a handlebar 26 which is connected to the frame 24 , a perch 28 which is connected to the frame 24 , and a front fork 30 which is connected to the frame 24 ,

The frame 24 includes a bottom bracket shell 32 for supporting a crankshaft 44 a drive mechanism 18 , The frame 24 includes a down tube 24A which is forward of the bottom bracket shell 32 extends, a chainstay 24B which backwards from the bottom bracket shell 32 extends, and a seat tube 24C which is upwards from the bottom bracket shell 32 extends. Next includes the frame 24 a seatstay 24D which the rear end of the chainstay 24B and the top of the seat tube 24C connects, a top tube 24E which extends forward from the top of the seat tube 24C , and a head pipe 24F which is the front end of the down tube 24A and the front end of the top tube 24E combines. A derailleur hanger 24G is provided at the rear end of the chainstay 24B ,

The handlebar 26 is / is releasably connected to the front fork 30 by means of a trunk 26A , The perch 28 is / is releasably connected to the seat tube 24C , The front fork 30 is / is supported on the head pipe 24F and connected to a wave 12A of the front wheel 12 ,

The drive mechanism 18 includes a hub assembly 34 , a pair of (left and right) pedals 36 , a pair of (left and right) pedal shafts 38 , a variety of back tooth rims 40 as well as a chain 42 , The crank assembly 34 includes a crankshaft 44 , a pair of (left and right) crank arms 46 and a front sprocket 48 , The crankshaft 44 is / is rotatably supported on the bottom bracket shell 32 , The front sprocket 48 is / is connected to the crankshaft 44 , The left and right crank arms 46 are attached to the crankshaft 44 , The left and right pedals 36 are / are attached to the crank arms 46 to be rotatable about the pedal shafts 38 around.

The front sprocket 48 is / is coupled to the crankshaft 44 or the crank arm 46 , The front sprocket 48 is coaxially provided with the crankshaft 30 , The front sprocket 48 is / is coupled so as not to rotate with respect to the crankshaft 44 ,

The back-toothed wreaths 40 are / are rotatably attached to the rear wheel 14 around a wave 14A of the rear wheel 14 , The back-toothed wreaths 40 are / are coupled to the rear wheel 14 by means of a one-way clutch. The chain 42 is wound on the front sprocket 48 and the sprocket 40 , If the crankshaft 44 is / is driven by the muscle drive force that is exerted on the pedals 36 , is / will be the rear wheel 14 turned by the front sprocket 48 , the chain 42 , and one of the rear sprockets 40 ,

The operating unit 20 is attached to the handlebar 26 , The operating unit 20 is / is electrically connected to a controller 54 (S. 3 ) of the transmission control apparatus 50 by a not shown cable. When the operation unit 20 is actuated by an operator, the actuator transmits an upshift signal or a downshift signal to the controller 54 (S. 3 ). An upshift is a shift in the direction in which the gear ratio γ increases, and a downshift is a shift in the direction in which the gear ratio γ decreases. It is also possible the operating unit 20 and the taxman 54 to connect (s. 3 ) to communicate via wireless communications.

The derailleur control apparatus 50 includes a controller 54 (S. 3 ). The derailleur control apparatus 50 preferably comprises a derailleur device 52 and a vehicle speed detecting device 56 , As in 3 shown includes the switching device 52 a derailleur 58 and a tilt sensor 60 , The rear derailleur 58 is / is designed to change the gear ratio γ of the bicycle 10 , The tilt sensor 60 is / is arranged on the vehicle body 16 , The tilt sensor 60 is configured to output a signal representing the inclination of the bicycle 10 in relation to the horizontal (ie level ground).

The rear derailleur 58 moves the chain 42 between the back-toothed rings 40 which are capable of producing different gear ratios γ. The gear shift stages of the derailleur 58 correspond to each of the sprockets 40 , The rear derailleur 58 is attached to the derailleur hanger 24G of the frame 24 near the shaft of the rear wheel 14 , The rear derailleur 58 includes a base member 62 , a movable member 64 , a coupling link 66 and an actuator 68 , The basic link 62 is attached to the frame 24 of the bicycle 10 , The movable member 64 is movable with respect to the base member 62 , The coupling link 66 couples the base member 62 and the movable member 64 , The actuator 68 is / is operatively coupled to the coupling link 66 for moving the movable member 64 in relation to the base member 62 , The actuator 68 is z. B. an electric motor. The actuator 68 , the taxman 54 , and the tilt sensor 60 are electrically connected to a battery (not shown) and are supplied with power from the battery. The battery can be arranged on the rear derailleur 58 , Alternatively, for example, the battery may be provided outside the derailleur 58 , such as at the frame 24 ,

The basic link 62 can be attached to the frame 24 by means of a holder 62A and a bolt or the like .. The holder 62A is / is fixed to the derailleur hanger 24G , The coupling link 66 connects the base member 62 and the movable member 64 so that the movable member 64 is mobile with respect to the base member 62 , The movable member 64 supports a chain guide 65 , The chain guide 65 includes a pair of roles 64A , The chain 42 is wound on the rollers 64A ,

The actuator 68 changes the gear ratio γ by pressing the rear derailleur 58 , In particular, the actuator moves 68 the coupling member 66 and the movable member 64 in relation to the base member 62 , The rear derailleur 58 turns the chain 42 between the back-toothed rings 40 by driving the actuator 68 for changing the gear ratio γ.

As in 3 shown includes the tilt sensor 60 a sensor unit 70 , The tilt sensor 60 is arranged on the frame 12 (S. 1 ). The tilt sensor 60 can be provided within the framework 24 (S. 1 ), or attached to the outer surface of the frame 24 (S. 1 ). The tilt sensor 60 is / is electrically connected to the controller 54 through an electrical cable.

The sensor unit 70 comprises a three-axis gyro sensor 72 and a triaxial acceleration sensor 74 , Hence the tilt sensor 60 includes the gyro sensor 72 and the acceleration sensor 74 , The output of the tilt sensor 60 includes the inclination angle of each of the three axes and the acceleration information of each of the three axes. The inclination angles of the three axes are a pitch angle θA, a roll angle θB, and a yaw angle θC. The three axes of the gyroscope sensor 72 preferably correspond to the three axes of the acceleration sensor 74 , The sensor unit 70 is / is preferably attached to the frame 24 so that the lateral direction of the vehicle body 16 (S. 1 ) and the direction in which the axis of the pitch angle θA extends substantially coincide.

The vehicle speed detection device 56 , in 1 shown, detects the rotation of the front wheel 12 , The vehicle speed detection device 56 includes a magnet 76 and a vehicle speed sensor 78 , The magnet 76 is attached to the spokes 12B of the front wheel 12 , The vehicle speed sensor 78 is / is also attached to the front fork 30 , The magnet 76 can be attached to the spokes 14B of the rear wheel 14 , In this case, the vehicle speed detecting device is / are 56 attached to the chainstay 24B , The vehicle speed detection device 56 is / is fixed on the vehicle body 16 by means of bolts and nuts, a band or similar. In the following description, the vehicle speed detecting device is 56 configured to detect the rotation of the front wheel 12 but a case in which the vehicle speed detecting device 56 the rotation detects the rear wheel 14 just replace the front wheel 12 with the rear wheel 14 so that its description is omitted.

The vehicle speed sensor 78 it will electrically connected to the controller 54 (S. 3 ) by a not shown cable. The vehicle speed sensor 78 comprises an element (not shown) which outputs a value corresponding to changes in the relative position with the magnet 76 , The element is / is realized by means of a magnet reed or magnetic tube which forms a reed switch, a Hall element or the like. The vehicle speed sensor 78 returns the output from the item (not shown) to the controller 54 as shown in 3 , The taxman 54 calculates the travel distance per unit time (hereinafter referred to as "vehicle speed V") based on the circumferential length of the front wheel 12 (S. 1 ), which is stored / in advance. That is, the vehicle speed sensor 78 outputs a signal representing the vehicle speed V of the bicycle 10 ,

The derailleur control system 50 further comprises a crank rotation detecting device 84 , The crank rotation detection device 84 includes a crank arm 46 , in 1 shown a magnet (not shown) attached to the front sprocket 48 or the crankshaft 44 , as well as a rotation detection sensor 86 (S. 3 ), which is attached to the frame 24 , The rotation detection sensor 86 , in 3 shown is / is electrically connected to the controller 54 through a cable. The rotation detection sensor 86 comprises a member (not shown) which outputs a value corresponding to changes in the relative position with the crank arm 46s , The element is / is realized by means of a magnet reed or magnetic tube which forms a reed switch, a Hall element or the like.

The taxman 54 , in 3 shown is / is provided at the rear derailleur 58 , The taxman 54 is / is preferably arranged on the base member 62 (S. 2 ). The taxman 54 may be provided within the base member 62 (S. 2 ), or attached to the outer surface of the base member 62 (S. 2 ). The taxman 54 includes a computing unit 80 for performing various calculations and a storage unit 82 , The taxman 54 also preferably includes other conventional components such as. An input interface circuit, an output interface circuit. The taxman 54 is preferably a microcomputer in which the arithmetic unit 80 includes one or more processors. The storage unit 82 preferably, any storage device (ie, a non-transient computer-readable medium such as a ROM (read only memory device), a RAM (random access device), hard disk, etc.) is / are being used. The storage unit 82 is / is designed to store programming, data, calculations and / or results. In the illustrated embodiment, the memory 82 an automatic shift program, which is pre-stored therein / is used for switching the rear derailleur 58 , The taxman 54 is / is designed (programmed) for calculating the rotational frequency of the crankshaft 44 per unit time (hereinafter referred to as "crank rotation frequency N") based on the output of the rotation detection sensor 86 , The cranking rotation frequency N is a parameter representing the running state of the bicycle 10 , However, the controller can 54 be configured to calculate the crank rotational frequency N based on the output of the vehicle speed sensor 78 , In this case, the controller 54 calculate the crank rotation frequency N calculate based on the vehicle speed V and the gear ratio γ. When a stage number detection sensor is provided at the rear derailleur 58 for detecting the gear shift stage, and the gear ratio γ corresponding to the gear shift stage is stored in the storage unit 82 of the taxman 54 , the taxman can 54 the crank rotation frequency N calculates the detection result of the step number detection sensor. Next, the controller 54 calculate the crank rotation frequency N based on the output of the vehicle speed sensor 78 and may calculate cranking rotation frequency N based on the output of the rotation detection sensor 86 , In particular, when idling, the vehicle speed is greater than "0", but the crank rotational frequency N detected by the rotation detection sensor 86 is "0", so it is preferable to calculate the cranking rotational frequency N based on the vehicle speed V. Therefore, the controller can 54 the crank rotational frequency N is used based solely on the vehicle speed V when the actual crank rotational frequency N detected by the rotation detection sensor 86 is smaller than the cranking rotational frequency N which is calculated based on the vehicle speed V.

The taxman 54 is configured (programmed) for calculating the inclination angle θ of the bicycle 10 based on the outputs of the tilt sensor 60 and the vehicle speed sensor 78 , The inclination angle θ is an inclination angle of the bicycle 10 in the longitudinal direction about an axis which extends in the lateral direction of the vehicle body 16 (S. 1 ). That is, the inclination angle θ is the pitch angle θA of the bicycle 10 , The inclination angle θ is set to be "0 degrees" when the vehicle body 16 is placed in a flat place (ie a horizontal area). Accordingly, the inclination angle θ correlates with the gradient of the travel road surface of the bicycle 10 ,

The calculation steps of the inclination angle θ will be described with reference to FIG 4 ,

The taxman 54 calculates the pitch angle θA, the roll angle θB, and the yaw angle θC from the output of the gyro sensor 72 in step S11. The taxman 54 calculates a first acceleration vector in the longitudinal direction of the vehicle body 16 (S. 1 ) from the acceleration sensor 74 in step S12. The taxman 54 calculates a second acceleration vector from the output of the vehicle speed sensor 78 in step S13.

The taxman 54 is configured (corrected) for correcting the pitch angle θA, the roll angle θB, and the yaw angle θC based on the first acceleration vector and the second acceleration vector for reducing errors included in the pitch angle θA, the roll angle θB, and the Yaw angle θC in step S14. In particular, the taxpayer calculates 54 the correction angle for each of the pitch angle θA, the roll angle θB and the yaw angle θC, based on the difference between the first acceleration vector and the second acceleration vector. The taxman 54 adds the correction angle to the pitch angle θA, the roll angle θB, and the yaw angle θC.

The taxman 54 calculates the inclination angle θ based on the inclination angle θA, the roll angle θB, and the yaw angle θC, which are corrected in step S14 and the initial value of the inclination angle of the bicycle 10 in step S15. The inclination angle θ may be calculated based on the pitch angle θA, the roll angle θB, and the initial value of the inclination angle of the bicycle 10 if the sensor unit 70 attached / will be on the rear derailleur 58 so that the lateral direction of the vehicle body 16 (S. 1 ) and the direction in which the axis of the pitch angle θA extends substantially coincide. Further, the inclination angle θ may be calculated based on the pitch angle θA and the initial value of the inclination angle of the bicycle 10 if the sensor unit 70 attached / will be on the rear derailleur 58 so that the lateral direction of the vehicle body 16 (S. 1 ) and the direction in which the axis of the pitch angle θA extends substantially coincide, and the longitudinal direction of the vehicle body 16 (S. 1 ) and the direction in which the axis of the roll angle θB extends substantially coincide.

The taxman 54 causes the rear derailleur 58 is operated according to the cranking rotational frequency N and a predetermined switching condition. The taxman 54 sets the predetermined switching condition based on the crank rotational frequency N and the inclination angle θ.

The predetermined shift conditions include a shift condition, a second shift condition, a fifth shift condition, a sixth shift condition, and a seventh shift condition. The predetermined switching conditions include a threshold regarding the crank rotational frequency N. The controller 54 causes the rear derailleur 58 is operated according to a comparison result between the cranking rotational frequency N and the threshold value. The taxman 54 sets the predetermined switching condition by changing the threshold. The threshold includes a first threshold NX and a second threshold NY.

The taxman 54 sets a first switching condition by changing the first threshold value NX and the second threshold value NY based on the cranking rotational frequency N at a change of the inclination angle θ from a value smaller than a first predetermined angle θX to a value equal to or larger than the first first predetermined angle θX. The taxman 54 causes the rear derailleur 58 is operated based on the crank rotational frequency N and the first shift condition when the inclination angle θ is greater than or equal to the first predetermined angle θX. In particular, the controller causes 54 that the rear derailleur 58 is operated based on a comparison result of the first threshold value NX and the second threshold value NY included in the first switching condition and the cranking rotational frequency N when the inclination angle θ is greater than or equal to the first predetermined angle θX.

The taxman 54 sets a second switching condition by changing the first threshold value NX and the second threshold value NY to the first threshold value NX and the second threshold value NY for traveling when the inclination angle θ exceeds zero degrees and is smaller than the first predetermined angle θX. The taxman 54 causes the rear derailleur 58 is operated based on the second switching condition when the inclination angle θ exceeds zero degrees and is smaller than the first predetermined angle θX. In particular, the controller causes 54 that the rear derailleur 58 is actuated based on a comparison result of the first threshold value NX and the second threshold value NY included in the second switching condition and the cranking rotational frequency N when the inclination angle θ exceeds zero degrees and is smaller than the first predetermined angle θX. The first threshold NX and the second threshold NY for traveling are changed based on an up signal and a down signal. The storage unit 82 stores the base value of the first threshold NX and the base value of the second threshold NY for travel. The base value of the first threshold NX for travel is z. B. 75 rpm. The base value of the second threshold NY for travel is z. The difference between the first threshold NX and the second threshold NY for travel is preferably 15-20 rpm.

When the bike 10 starts to drive starting from a stopped state, notes the controller 54 the fifth switching condition by switching the first threshold NX and the second threshold NY to the first threshold NX and the second threshold NY for starting.

When the bike 10 starting to drive from a stopped state, the controller causes 54 . that the rear derailleur 58 is operated based on the cranking rotational frequency N and the fifth switching condition until the gear ratio γ becomes greater than or equal to a predetermined gear ratio γX. If in particular the bike 10 starting to drive from a stopped state, is / is causing the rear derailleur 58 is operated / is based on a comparison result of the first threshold value NX and the second threshold value NY for starting, which are included in the fifth switching condition, and the crank rotational frequency N.

The first threshold value NX for starting, that is, the first threshold value NX in the fifth shift condition, includes an upper limit value NX1 corresponding to a first gear ratio γA and an upper limit value NX2 corresponding to a second gear ratio γB having a larger gear ratio γ is the gear ratio γA. The second threshold value NY for starting, that is, the second threshold value NY in the fifth shift condition includes a lower limit value NY1 corresponding to the first gear ratio γA, includes a lower limit value NY2 corresponding to the second gear ratio γB. The upper bound value NX1 and the lower bound value NY1 are the third thresholds in the fifth switching condition. The upper threshold value NX2 and the lower limit value NY1 are the fourth threshold values in the fifth switching condition. That is, the thresholds in the fifth switching condition include the third thresholds and the fourth thresholds.

The upper limit value NX1 is smaller than the upper limit value NX2 in a range from a gear ratio γ corresponding to a minimum gear shift speed number to a gear ratio γ corresponding to a first predetermined gear shift speed number. The lower limit value NY1 is smaller than the lower limit value NY2 in a range from a gear ratio γ corresponding to a minimum gear shift speed number to a gear ratio γ corresponding to a second predetermined gear shift speed number. The first predetermined gear shift number is z. B. the fourth stage. The second predetermined gear shift number is z. B. the fifth stage.

The storage unit 82 11 is a gear shift table showing the relationship between the gear shift number and the first threshold NX for starting and the second threshold NY for starting. Table 1 shows an example of a shift table table showing the relationship between the gear shift number and the first threshold NX for starting and the second threshold NY for starting in the derailleur 58 when there are eight gear shift stages. Table 1 Threshold for starting First threshold NX Second threshold NY Gear shift stage 1 30 10 2 40 15 3 55 25 4 75 35 5 75 60 6 75 60 7 75 60 8th 75 60

When the inclination angle θ is greater than or equal to the first predetermined angle θX, and when an upshift signal for increasing the gear ratio γ is inputted by the operating unit 20 , the controller causes 54 . that the rear derailleur 58 is actuated, and sets a sixth switching condition by changing the first threshold NX and the second threshold NY based on the crank rotational frequency N immediately after causing the derailleur 58 is / is operated. The taxman 54 causes the rear derailleur 58 is operated / is based on the cranking rotational frequency N and the sixth switching condition when the sixth switching condition is set / is.

When the inclination angle θ is greater than or equal to the first predetermined angle θX, and when a downshifting signal for decreasing the gear ratio γ is inputted by the operating unit 20 , the controller causes 54 that the rear derailleur 58 is operated, and sets a seventh switching condition by changing the first threshold value NX and the second threshold value NY based on the cranking rotational frequency N before causing the derailleur 58 is / is operated. The taxman 54 causes the rear derailleur 58 is operated according to the cranking rotational frequency N and the seventh switching condition when the seventh switching condition is set.

The switching process which is carried out by the controller 54 is described with reference to 5 to 9 , The switching process is / is started when a power supply to the controller 54 is on by means of an operation of a button, not shown, or the like, and the switching operation is started by step S21 whenever the power supply is turned on. The switching process, shown in 5 to, may also be started when the mode is switched from a manual transmission mode to an automatic transmission mode through a changeover switch. When the automatic derailleur mode is set, the controller will operate 54 from the steps of 5 to 9 , That means, the taxman 54 can the rear derailleur 58 control automatically. When the manual derailleur mode is set, the controller controls 54 the rear derailleur 58 based solely on an actuation signal from the actuator unit 20 , That is, in manual derailleur mode, the controller controls 54 the rear derailleur 58 based solely on an operation of the driver.

 The switching process includes a first set of steps, a second set of steps, a third set of steps, and a fourth set of steps.

The first set of steps executed immediately after power-on will be described with reference to FIG 5 ,

The taxman 54 sets a zero start flag in step S21, and proceeds to step S22. If the zero start flag is set, the controller will execute 54 a switching control using the first threshold value NX and the second threshold value NY for starting. On the other hand, if the zero-start flag is not set, the controller will execute 54 a switching control using the first threshold NX and the second threshold NY for travel. The zero start flag is set when the power is on, and when the vehicle speed is "0". In the case of setting the first threshold value NX and the second threshold value NY to the first threshold value NX and the second threshold value NY for traveling by setting the zero-start flag, the fifth switching condition is set.

The taxman 54 determines whether or not the zero-start flag is set in step S22. If the zero start flag is not set, the control proceeds 54 to step S25. When the zero-start flag is set in step S22, the controller determines 54 in step S23, whether or not the gear ratio is equal to or smaller than a predetermined gear ratio γX. If the current gear ratio γ is greater than the predetermined gear ratio γX, the controller clears 54 the zero start flag in step S24 and proceeds to step S25. If the current gear ratio γ is less than or equal to the predetermined gear ratio γX, the controller clears 54 the zero-start flag does not go on and proceeds to step S25. If, for example, the gear shift stage number of the derailleur 58 the eleventh stage, a gear ratio γ corresponding to the fourth stage may be set as the predetermined gear ratio γX.

The taxman 54 determines whether or not the acceleration GA is smaller than a predetermined acceleration GX in step S25. The acceleration G is preferably an acceleration in the longitudinal direction of the bicycle 10 , and is calculated based on an output of the acceleration sensor 74 and a vehicle speed sensor 78 , When acceleration GA is greater than or equal to the predetermined acceleration GX, the controller advances 54 does not proceed to the next step S27 but repeats the determination process of step S26 until a predetermined period TA has elapsed in step S26. The taxman 54 The flow proceeds to step S27 when the acceleration GA is smaller than the predetermined acceleration GX or after the predetermined period TA has elapsed after the acceleration GA is determined to be greater than or equal to the predetermined acceleration GX. That means, the taxman 54 prevents control of the derailleur 58 in accordance with the cranking rotational frequency N and the predetermined shifting condition until the predetermined period TA has elapsed after the acceleration GA generated in the bicycle 10 exceeding predetermined acceleration GX. The predetermined time TA is set based on the amount of acceleration GA. In particular, the predetermined time period TA is longer as the acceleration GA increases. A table, map or formula showing the relationship between the acceleration GA and the predetermined time TA is stored in the memory unit 82 ,

The taxman 54 determines, upper or not, the vehicle speed V "0" is in step S27. When the vehicle speed is "0", the controller starts 54 again the steps of step S21. If the Vehicle speed V is greater than "0" determines the controller 54 in step S28, whether or not the inclination angle θ is greater than or equal to the first predetermined angle θX exceeding zero degrees. The first predetermined angle θX is preferably selected to be an angle corresponding to an increasing road gradient of 2% to 10%. The first predetermined angle θX is z. B. 1.1 degrees, corresponding to a rising road gradient of 2%. The taxman 54 goes to step S29 (see FIG. 6 ), when the inclination angle θ is smaller than the first predetermined angle θX which exceeds zero degrees, and proceeds to step S41 (see FIG 8th ) when the inclination angle θ is greater than or equal to the first predetermined angle θX exceeding zero degrees.

The second set of steps when the actuator unit 20 is operated when driving on a flat road or downhill will be described with reference to 6 , The taxman 54 determines whether or not an upshift signal has been input by the operation unit 20 in step S29. For example, when an upshift signal is input after a determination has been made as to whether or not a previous upshift signal has been input, it is determined that an upshift signal has been input.

When an up signal has been input, the controller will execute 54 an upshift control from the derailleur 58 in step S30, and changes the first threshold value NX and the second threshold value NY for traveling to values greater than the current values. The amount of alternation of the first threshold NX and the amount of alternation of the second threshold NY are preferably the same. The amount of change of the first threshold NX and the amount of alternation of the second threshold NY are, for example, 3 rpm. After the process of step S30, the controller proceeds 54 to step S33. An upshift control is a control for causing the derailleur 58 is operated in the direction in which the gear ratio γ becomes larger.

If an up signal has not been input in step S29, then the controller determines 54 Whether or not a downshift signal has been input from the operating unit 20 in step S31. For example, if a downshift signal is input after a determination has been made as to whether or not a previous downshift signal has been input, it is determined that a downshift signal has been input.

When a downshift signal has been input, the controller will execute 54 a downshift control from the derailleur 58 in step S32, and changes the first threshold value NX and the second threshold value NY for traveling to values smaller than the current values. The amount of alternation of the first threshold NX and the amount of alternation of the second threshold NY are preferably the same. The amount of change of the first threshold NX and the amount of change of the second threshold NY are, for example, 3 rpm. After the process of step S32, the controller advances 54 to step S33. A downshift control is a control for causing the derailleur 58 is operated in the direction in which the gear ratio γ becomes smaller.

The taxman 54 determines in step S33 whether or not the cranking rotational frequency N is greater than the first threshold value NX. If the cranking rotational frequency N is greater than the first threshold value NX, the first threshold value NX and the second threshold value NY are changed to larger values than the current values in step S34, and the steps are repeated again from step S22 (see FIG , 5 ). The amount of alternation of the first threshold NX and the amount of alternation of the second threshold NY in step S33 are, for example, 3 rpm.

If the crank rotational frequency N is less than or equal to the first threshold NX, then the controller determines 54 Whether or not the crank rotational frequency N is smaller than the second threshold value NY in step S35. When the cranking rotation frequency N is smaller than the second threshold value NY, the first threshold value NX and the second threshold value NY are changed to smaller values than the current values in step S36, and the steps are repeated again from step S22 (see FIG. 5 ). The amount of change of the first threshold value NX and the amount of alternation of the second threshold value NY in step S35 are, for example, 3 rpm.

When cranking rotational frequency N is equal to or greater than the second threshold value NY at step S35, that is, when the cranking rotational frequency N is within a range smaller than the first threshold value NX and greater than the second threshold value NY, the controller changes 54 not the first threshold NX and the second threshold NY and again repeats the steps of step S22 (see FIG. 5 ).

When a downshifting signal has not been input in step S31, that is, when neither an upshifting signal nor a downshifting signal has been inputted by the switching device 20 , then the tax strikes 54 to step S37 (see FIG. 7 )

The third set of steps for maintaining the crank rotational frequency N when driving on a flat road or downhill will be described with reference to FIG 7 ,

When the zero-start flag is set, the first threshold NX and the second threshold NY for start-up are set as the first threshold value NX and the second threshold value NY. Accordingly, the third set of steps is performed based on the fifth switching condition. If the zero-start flag is not set, the first threshold NX and the second threshold NY for driving are set as the first threshold NX and the second threshold NY. Accordingly, the third set of steps is performed based on the second switching condition.

The taxman 54 determines whether or not the cranking rotational frequency N is greater than or equal to the first threshold value NX in step S37. If the cranking rotational frequency N is greater than or equal to the first threshold value NX, the controller performs 54 an upshift control off in step S38, proceeds to step S22 (see FIG. 1 ) and repeats the steps of step S22 again.

If the crank rotational frequency N is less than the first threshold NX, then the controller determines 54 in step S39, whether or not the crank rotational frequency N is less than or equal to the second threshold value NY. If cranking rotation frequency N is less than or equal to the second threshold value NY in step S40, the controller performs 54 a downshift control, proceeds to step S22 (see FIG. 1 ) and repeats the steps of step S22 again.

When the crank rotational frequency N is greater than the second threshold value NY at step S39, that is, when the cranking rotational frequency N is within a range smaller than the first threshold value NX and greater than the second threshold value NY, the controller performs 54 not an upshift control or a downshift control, proceeds to step S22 (see FIG. 1 ) and repeats the steps of step S22 again.

The fourth steps when the actuator unit 20 is operated on a hill, will be described with reference to 8th ,

The taxman 54 determines, upper or not, the vehicle speed V "0" is in step S41. When the vehicle speed is "0", the controller starts 54 again, the steps of step S21 (see FIG. 1 ). If the vehicle speed V is greater than "0", the controller 54 determines whether or not the inclination angle θ is smaller than the first predetermined angle θX, in step S42. The taxman 54 , goes to step S22 (see FIG. 5 ), when the inclination angle θ is smaller than the first predetermined angle θX, and proceeds to step S43 when the inclination angle θ is greater than or equal to the first predetermined angle θX.

The taxman 54 determines whether or not an upshift signal has been input by the operation unit 20 in step S43. For example, when an upshift signal is input after a determination has been made as to whether or not a previous upshift signal has been input, it is determined that an upshift signal has been input.

When an up signal has been input, the controller will execute 54 an upshift control from the derailleur 58 in step S44, and changes the second threshold value NY based on the cranking rotational frequency N before performing the shift-up control, that is, before shifting. In particular, the controller changes 54 the rotation frequency obtained by subtracting a first predetermined number from the crank rotation frequency N before performing an upshift control to the second threshold value NY. The sixth switching condition is / is set by this. The first predetermined number is z. 3 rpm. After the process of step S44, the controller sets 54 the first threshold value NX on in step S47.

If an upshift signal has not been input in step S43, then the controller determines 54 Whether or not a downshift signal has been input from the operating unit 20 in step S45. For example, if a downshift signal is input after a determination has been made as to whether or not a previous downshift signal has been input, it is determined that a downshift signal has been input.

When a downshift signal has been input, the controller will execute 54 a downshift control from the derailleur 58 in step S46, and changes the second threshold value NY based on the cranking rotation frequency N before performing the downshift control, that is, before switching. In particular, the controller changes 54 the crank rotation frequency N before performing a downshift control to the second threshold value NY. The seventh switching condition is / is set by. After the process of step S46, the controller sets 54 the first threshold value NX on in step S47.

The taxman 54 changes the first threshold value NX based on the second threshold value NY in step S47. In particular, the controller changes 54 the rotation frequency obtained by adding a second predetermined number to the second threshold value NY which is set in step S44 or step S46 to the first threshold value NX. The second predetermined number is z. B. 20 rpm. After changing the first threshold value NX in step S47, the controller steps 54 to step S41 and again repeats the steps of step S41.

When a downshifting signal has not been input in step S45, that is, when neither an upshifting signal nor a downshifting signal has been inputted by the switching device 20 , Then the tax strikes 54 to step S48 (see FIG. 9 ).

The fifth set of steps for maintaining the cranking rotational frequency N in a mainly uphill run will be described with reference to FIG 9 , When neither an upshift signal nor a downshift signal has been inputted after a change of the inclination angle θ from a value smaller than the first predetermined angle θX to a value equal to or larger than the first predetermined angle θX, the first one is Threshold value NX and the second threshold value NY changed based on the cranking rotational frequency N at a change of the inclination angle θ from a value smaller than the first predetermined angle θX to a value equal to or larger than the first predetermined angle θX. Accordingly, the fifth set of steps is performed based on the first switching condition. When an upshift signal has been inputted after a change of the inclination angle θ from a value smaller than the first predetermined angle θX to a value which is greater than or equal to the first predetermined angle θX and if the last input has not been a downshift signal but an upshift signal, the first threshold value NX and the second threshold value NY are / are changed based on the upshift signal. Accordingly, the fifth set of steps is performed based on the sixth switching condition.

When a downshifting signal has been inputted after a change of the inclination angle θ from a value smaller than the first predetermined angle θX to a value equal to or larger than the first predetermined angle θX, and iwhen the last input has not been an upshift signal but a downshift signal, the first threshold value NX and the second threshold value NY are changed based on the downshift signal. Accordingly, the fifth set of steps is performed based on the seventh switching condition.

The taxman 54 changes the second threshold value NY in step S48 based on the cranking rotational frequency N upon a change of the inclination angle θ from a value smaller than a first predetermined angle θX to a value equal to or larger than the first predetermined angle θX. In particular, the controller changes 54 a value obtained by subtracting a third predetermined number from the crank rotational frequency N after changing the inclination angle θ from a value smaller than that first predetermined angles θX toward a value which is equal to or greater than the first predetermined angle θX, to the second threshold value NY. The first switching condition is / is set by it. The third predetermined value is z. Accordingly, the second threshold value NY in the first switching condition is smaller than the cranking rotational frequency N when the inclination angle θ has become greater than or equal to the first predetermined angle θX.

The taxman 54 changes the first threshold value NX based on the second threshold value NY in step S49. In particular, the controller changes 54 the rotation frequency obtained by adding a fourth predetermined number to the second threshold value NY which is set to the first threshold value NX in step S48. The first switching condition is / is set by it. The fourth predetermined number is z. Accordingly, the first threshold NX in the first switching condition is greater than the crank rotational frequency N after a change of the inclination angle θ from a value smaller than the first predetermined angle θX to a value equal to or larger than the first is predetermined angle θX. Further, the difference between the second threshold value NY in the first switching condition and the cranking rotational frequency N when the inclination angle θ is changed from a value smaller than the first predetermined angle θX to a value equal to or larger than the first predetermined angle θX is smaller than the difference between the first threshold NX in the first switching condition and the crank rotational frequency N when the inclination angle θ is changed from a value smaller than the first predetermined angle θX to a value equal to or larger than the first predetermined one Angle θX is.

The controller then determines 54 Whether or not the crank rotational frequency N is greater than or equal to the first threshold NX is in step S50. If the cranking rotational frequency N is greater than or equal to the first threshold value NX, the controller performs 54 an upshift control off in step S51, proceeds to step S41 (see FIG 8th ) and repeats the steps of step S41 again. That is, when the crank rotational frequency N exceeds the first threshold NX, the controller controls 54 the rear derailleur 58 , so that the gear ratio γ increases.

If the crank rotational frequency N is less than the first threshold NX, then the controller determines 54 in step S52, whether or not the crank rotational frequency N is less than or equal to the second threshold value NY. When cranking frequency N is less than or equal to the second threshold value NY, the controller performs 54 a downshift control off in step S53, proceeds to step S41 (see FIG 8th ) and repeats the steps of step S41 again. That is, when cranking rotational frequency N becomes less than or equal to the second threshold value NY, the controller controls 54 the rear derailleur 58 , so that the gear ratio γ decreases.

As described above, the controller causes 54 that the rear derailleur 58 is operated When the cranking rotation frequency N becomes equal to or greater than the first threshold value NX or less than or equal to the second threshold value. When the cranking rotational frequency N is greater than the second threshold value NY at step S52, that is, when the cranking rotational frequency N is within a range smaller than the first threshold value NX and greater than the second threshold value NY, the controller performs 54 not an upshift control or a downshift control, proceeds to step S41 (see FIG 8th ) and repeats the steps of step S41 again.

• (1) Der Steuerer 54 stellt eine vorbestimmte Schaltbedingung ein basierend auf der Kurbeldrehfrequenz N und dem Neigungswinkel θ. Entsprechend kann eine Schaltsteuerung entsprechend der Reiseumgebung des Fahrrades 10 ausgeführt sein/werden.
• (2) Der Steuerer 54 stellt eine erste Schaltbedingung ein durch Wechseln des ersten Schwellenwerts NX und des zweiten Schwellenwerts NY basierend auf der Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher kleiner ist als ein erster vorbestimmter Winkel θX hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel θX ist. Die Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher kleiner ist als ein erster vorbestimmter Winkel θX hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel θX ist kommt zum Liegen innerhalb des Bereichs zwischen dem ersten Schwellenwert NX und dem zweiten Schwellenwert NY nach einem Wechsel. Wenn entsprechend der Neigungswinkel θ wechselt von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel θX hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel θX ist, steuert der Steuerer 54 das zu erhaltende Schaltwerk 58 in der Nähe der Kurbeldrehfrequenz N, bevor sie größer oder gleich dem ersten vorbestimmten Winkel θX geworden ist. Wenn entsprechend der Neigungswinkel θ wechselt von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel θX hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel θX ist, wird es weniger wahrscheinlich, dass die Kurbeldrehfrequenz N wechselt; daher kann ein Zunehmen in der Muskelantriebskraft unterdrückt sein/werden.
• (3) Die Differenz zwischen dem zweiten Schwellenwert NY in der ersten Schaltbedingung und der Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel θX, hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel θX ist, ist kleiner als die Differenz zwischen dem ersten Schwellenwert NX in der ersten Schaltbedingung und der Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher kleiner ist als der erste vorbestimmte Winkel θX hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel θX ist. Das heisst, ein Wechsel im Gangverhältnis γ ist einfacher auszuführen, wenn die Kurbeldrehfrequenz N absteigt im Vergleich zu einem Ansteigen. Entsprechend ist/wird das Schaltwerk 58 einfach betätigt in einer Richtung, in welcher das Gangverhältnis γ abnimmt, wenn die Kurbeldrehfrequenz N reduziert ist/wird, wenn der Neigungswinkel θ größer oder gleich dem ersten vorbestimmten Winkel θX ist. Entsprechend kann ein Fortdauern eines Zustands, in welchem die Last des Fahrers groß ist, unterdrückt sein/werden durch ein Absenken des Gangverhältnisses γ, wenn die Kurbeldrehfrequenz N abnimmt aufgrund einer großen Last des Fahrers während eines Bergauffahrens.
• (4) Der Steuerer 54 bewirkt, dass das Schaltwerk 58 betätigt ist/wird, basierend auf der Kurbeldrehfrequenz N und der zweiten Schaltbedingung wenn der Neigungswinkel θ null Grad überschreitet und kleiner ist als der erste vorbestimmte Winkel θX. Entsprechend die Kurbeldrehfrequenz N wenn Neigungswinkel θ 0 Grad überschreitet und kleiner ist als der erste vorbestimmte Winkel θX ist/wird erhalten in einem vorbestimmten Bereich ausgehend vom ersten Schwellenwert NX zum zweiten Schwellenwert NY für ein Reisen.
• (5) In einer Situation, in welcher die Beschleunigung GA zunimmt, wie z.B. bei einem Klettern über Unebenheiten auf der Straßenfläche, besteht das Risiko, dass die Kurbeldrehfrequenz N gewechselt ist/wird. Der Steuerer 54 verhindert eine Steuerung des Schaltwerks 58 entsprechend der Kurbeldrehfrequenz N und einer vorbestimmten Schaltbedingung, bis eine vorbestimmte Zeitspanne TA abgelaufen ist nach einem Überschreiten einer vorbestimmten Beschleunigung GX durch die Beschleunigung GA. Entsprechend eine Betätigung des Schaltwerks 58 aufgrund von Fluktuationen in der Kurbeldrehfrequenz N aufgrund eines Kletterns über Unebenheiten oder Ähnlichem. kann unterdrückt sein/werden.
• (6) Die Beschleunigung GA nimmt zu, wenn die Unebenheit der Straßenfläche groß ist. Weiter die Fluktuationszeit der Kurbeldrehfrequenz N aufgrund eines Kletterns über Unebenheiten und Ähnliches neigt dazu, lang zu werden. Weil die vorbestimmte Zeitspanne TA eingestellt ist/wird basierend auf dem Ausmaß der Beschleunigung GA, eine Betätigungs des Schaltwerks 58 aufgrund von Änderungen in der Ausgabe des Neigungssensors 60 aufgrund eines Kletterns über Unebenheiten oder Ähnlichem. kann unterdrückt sein/werden.
• (7) In einem virtuellen Schaltwerksteuerapparat, in welchem der zweite Schwellenwert NY für ein Starten und der zweite Schwellenwert NY für ein Reisen dieselben sind, wird eine Situation, in welcher Kurbeldrehfrequenz N kleiner als zweite Schwellenwert NY wird, einfach hervorgerufen zum Zeitpunkt eines Beginnens eines Fahrens des Fahrrades 10; daher besteht das Risiko, dass der Steuerer 54 exzessiv eine Hochschaltsteuerung ausführt.

The operation and effects of the taxman 54 will be described.

• (1) The taxpayer 54 sets a predetermined shift condition based on the crank rotation frequency N and the inclination angle θ. Accordingly, a shift control according to the travel environment of the bicycle 10 be executed.
• (2) The taxpayer 54 sets a first switching condition by changing the first threshold value NX and the second threshold value NY based on the cranking rotational frequency N at a change of the inclination angle θ from a value smaller than a first predetermined angle θX to a value equal to or larger than the first first predetermined angle θX. The crank rotational frequency N at a change of the inclination angle θ from a value smaller than a first predetermined angle θX to a value equal to or larger than the first predetermined angle θX comes to rest within the range between the first threshold value NX and that second threshold NY after a change. Accordingly, when the inclination angle θ changes from a value smaller than the first predetermined angle θX to a value equal to or larger than the first predetermined angle θX, the controller controls 54 the rear derailleur to be obtained 58 in the vicinity of the cranking rotational frequency N, before it becomes equal to or greater than the first predetermined angle θX. Accordingly, when the inclination angle θ changes from a value smaller than the first predetermined angle θX to a value greater than or equal to the first predetermined angle θX, the crank rotational frequency N is less likely to change; therefore, an increase in muscle driving force can be suppressed.
• (3) The difference between the second threshold value NY in the first switching condition and the cranking rotational frequency N when the inclination angle θ is changed from a value smaller than the first predetermined angle θX to a value equal to or larger than the first predetermined value Angle θX is smaller than the difference between the first threshold NX in the first switching condition and the crank rotational frequency N when the pitch angle θ is changed from a value smaller than the first predetermined angle θX to a value greater than or equal to the first predetermined angle θX. That is, a change in the gear ratio γ is easier to carry out when the cranking rotational frequency N descends compared to an increase. According to / is the rear derailleur 58 is simply operated in a direction in which the gear ratio γ decreases when the cranking rotational frequency N is reduced when the inclination angle θ is greater than or equal to the first predetermined angle θX. Accordingly, a continuation of a state in which the load of the driver is large can be suppressed by lowering the gear ratio γ when the cranking rotational frequency N decreases due to a large load of the driver during a hill climb.
• (4) The taxpayer 54 causes the rear derailleur 58 is operated based on the crank rotational frequency N and the second shift condition when the inclination angle θ exceeds zero degrees and is smaller than the first predetermined angle θX. Accordingly, the crank rotational frequency N when the inclination angle θ exceeds 0 degrees and is smaller than the first predetermined angle θX is obtained in a predetermined range from the first threshold value NX to the second threshold value NY for travel.
• (5) In a situation in which the acceleration GA increases, such as climbing over bumps on the road surface, there is a risk that the cranking rotational frequency N is changed. The taxman 54 prevents control of the derailleur 58 in accordance with the crank rotational frequency N and a predetermined shift condition until a predetermined time TA has elapsed after exceeding a predetermined acceleration GX by the acceleration GA. Accordingly, an operation of the derailleur 58 due to fluctuations in the cranking rotational frequency N due to climbing over bumps or the like. can be suppressed.
• (6) The acceleration GA increases when the unevenness of the road surface is large. Further, the fluctuation time of the cranking rotational frequency N due to climbing over bumps and the like tends to become long. Because the predetermined period TA is set based on the amount of acceleration GA, an operation of the derailleur 58 due to changes in the output of the tilt sensor 60 due to climbing over bumps or the like. can be suppressed.
• (7) In a virtual transmission control apparatus in which the second threshold value NY for starting and the second threshold value NY for traveling are the same, a situation in which cranking rotation frequency N becomes smaller than the second threshold value NY is simply caused at the time of starting one Driving the bike 10 ; therefore there is a risk that the taxpayer 54 excessively executes an upshift control.

When the bike 10 starting to drive from a stopped state, the controller causes 54 that the rear derailleur 58 is operated / is based on the cranking rotational frequency N and the fifth switching condition until the gear ratio γ is greater than or equal to a predetermined gear ratio γA. The lower limit value NY1 corresponding to the first gear ratio γA in the fifth shift condition is smaller than the lower limit value NY2 corresponding to the second gear ratio γB. Accordingly, an excessive execution of an upshift control at the time of starting to ride the bicycle 10 can be suppressed.

Further, in a virtual transmission control apparatus in which the second threshold value NY for startup is smaller than the second threshold value NY for traveling, and the first threshold value NX for startup and the first threshold value NX for travel are the same which the cranking rotation frequency N becomes lower than the first threshold value NX, simply caused at the time of starting to ride the bicycle 10 ; therefore it is difficult for the controller 54 to execute an upshift control. As a consequence, due to a continuation of a state in which the gear ratio 99 is small, there is a risk that state is caused / in which the running resistance of the road surface is excessively low with respect to the torque which can be transmitted from the rear wheel 14 to the road surface at the time of starting a driving.

• (8) Es ist denkbar, dass die Kurbeldrehfrequenz N reduziert ist/wird bei einem Ausführen einer Hochschaltsteuerung. Wenn ein Hochschaltsignal eingeben ist/wird seitens der Betätigungseinheit 20, stellt der Steuerer 54 eine sechste Schaltbedingung ein durch Wechseln eines Werts, welcher kleiner ist als die Kurbeldrehfrequenz N unmittelbar nach einem Bewirken, dass das Schaltwerk 58 betätigt ist/wird zum zweiten Schwellenwert NY. Entsprechend ist möglich ein Ausführen eines Runterschaltens zu unterdrücken aufgrund dessen, dass die Kurbeldrehfrequenz N niedriger wird als der zweite Schwellenwert NY nach einem Ausführen einer Hochschaltsteuerung basierend auf einem Hochschaltsignal.
• (9) Es ist denkbar, dass die Kurbeldrehfrequenz N angehoben ist/wird bei einem Ausführen einer Runterschaltsteuerung. Wenn ein Runterschaltsignal eingeben ist/wird seitens der Betätigungseinheit 20, stellt der Steuerer 54 eine siebte Schaltbedingung ein durch Wechseln der Kurbeldrehfrequenz N vor einem Bewirken, dass das Schaltwerk 58 betätigt ist/wird, zum zweiten Schwellenwert NY, sowie ein Wechseln des ersten Schwellenwerts NX hin zu einem Wert, welches größer ist als der zweite Schwellenwert NY. Entsprechend ist möglich ein Ausführen eines Hochschaltens zu unterdrücken aufgrund eines Überschreitens des ersten Schwellenwerts NX durch die Kurbeldrehfrequenz N nach einem Ausführen einer Runterschaltsteuerung basierend auf einem Runterschaltsignal.

The upper limit value NX1 corresponding to the first gear ratio γA in the fifth shift condition is smaller than the upper limit value NX2 corresponding to the second gear ratio γB. Accordingly, a torque from the front wheel 12 and the rear wheel 14 be suitably transferred to the road surface.

• (8) It is conceivable that the crank rotational frequency N is reduced when executing an upshift control. When an up signal is input by the operation unit 20 represents the taxpayer 54 a sixth shifting condition by changing a value smaller than the cranking rotational frequency N immediately after causing the derailleur 58 is operated / becomes the second threshold NY. Accordingly, it is possible to suppress execution of downshifting due to the cranking rotation frequency N becoming lower than the second threshold value NY after performing upshift control based on an upshift signal.
• (9) It is conceivable that the crank rotational frequency N is raised when executing a downshift control. When a downshift signal is input by the operation unit 20 represents the taxpayer 54 a seventh switching condition by changing the cranking rotational frequency N before causing the derailleur 58 is operated, the second threshold value NY, as well as a change of the first threshold value NX to a value which is greater than the second threshold value NY. Accordingly, it is possible to suppress execution of an upshift due to exceeding the first threshold value NX by the crank rotational frequency N after executing a downshift control based on a downshift signal.

The taxman 54 According to a second embodiment, a predetermined shift condition sets based on the crank rotational frequency N and the inclination angle θ. The predetermined shift conditions include a first shift condition, a second shift condition, a third shift condition, and a fourth shift condition. The predetermined switching conditions include a threshold regarding the crank rotational frequency N. The controller 54 causes the rear derailleur 58 is operated according to a comparison result between the cranking rotational frequency N and the threshold value. The taxman 54 sets the predetermined switching condition by changing the threshold. The threshold includes a first threshold NX and a second threshold NY.

The taxman 54 sets a first switching condition by changing at least the second threshold value NY, based on that the inclination angle θ is greater than or equal to the first predetermined angle θX, and on the fact that the inclination angle θ has changed. In particular, the controller provides 54 a first switching condition by raising at least the second threshold value NY based on the change rate being equal to or larger than a first ratio when the tilt angle θ has changed in an increasing direction. Next is the taxman 54 a first switching condition by raising at least the second threshold value NY based on the change amount being equal to or larger than a first swing amount when the tilt angle θ has changed in an increasing direction.

The taxman 54 sets a first switching condition by lowering at least the second threshold value NY based on that the change rate is greater than or equal to a second ratio when the inclination angle θ has changed in a decreasing direction. Alternatively, the controller provides 54 a first switching condition by lowering at least the second threshold value NY based on the change amount being equal to or larger than a second swing amount when the tilt angle θ has changed in a decreasing direction.

When the inclination angle θ is greater than or equal to the first predetermined angle θX, the controller sets 54 the first switching condition based on the fact that the increased travel distance of the bicycle 10 is greater than or equal to a second travel distance, or the elapsed travel time of the bicycle 10 is greater than or equal to a first travel time.

The taxman 54 causes the rear derailleur 58 is operated / is based on the parameter, representing the driving condition of the bicycle 10 , and the third switching condition when the inclination angle θ is smaller than or equal to the second predetermined angle θY which is smaller than zero degrees. The parameter representing the driving condition of the bicycle 10 is, for example, the cranking rotational frequency N.

The taxman 54 sets a third shift condition by changing at least the first threshold value NX based on that the inclination angle θ is equal to or smaller than the second predetermined angle θY, and on the fact that the inclination angle θ has changed. In particular, the controller provides 54 a third shift condition by lowering at least the first threshold value NX based on that the change rate is greater than or equal to a third ratio when the tilt angle θ has changed in a decreasing direction. Alternatively, the controller provides 54 a third shift condition by lowering at least the first threshold value NX based on that the shift amount is equal to or larger than a third shift amount when the tilt angle θ has changed in a decreasing direction.

The taxman 54 sets a third shift condition by increasing at least the first threshold value NX based on that the change rate is equal to or larger than a fourth ratio when the tilt angle θ has changed in an increasing direction. Next is the taxman 54 a third shift condition by raising at least the first threshold value NX based on that the shift amount is equal to or more than a fourth change amount when the tilt angle θ has changed in an increasing direction.

When the inclination angle θ is smaller than or equal to the second predetermined angle θY, the controller sets 54 the third shift condition based on that the increased travel distance of the bicycle 10 is greater than or equal to a second travel distance, or, or the expired travel time of the bicycle 10 is greater than or equal to a second travel time.

The taxman 54 sets the third shift condition based on the crank rotation frequency N, which is an example of a parameter of the bicycle representing the running state of the bicycle 10 when the inclination angle θ is changed from a value exceeding a second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY.

The first threshold value NX in the third switching condition is smaller than the cranking rotational frequency N of the bicycle 10 upon a change of the inclination angle θ from a value exceeding the second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY. The second threshold value NY in the third switching condition is smaller than the cranking rotational frequency N of the bicycle 10 upon a change of the inclination angle θ from a value exceeding the second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY.

In the third switching condition, the difference between the threshold value NY and the cranking rotational frequency N is greater than a value exceeding the second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY when the inclination angle θ is changed the difference between the first threshold NX and the crank rotational frequency N when the inclination angle θ changes from a value exceeding the second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY.

The taxman 54 causes the rear derailleur 58 is operated / is based on the crank rotational frequency N of the bicycle 10 , and the fourth switching condition when the inclination angle θ is smaller than 0 degrees and exceeds the second predetermined angle θY. The switching operations which are carried out by the controller 54 are described with reference to 10 - 12 , The switching process includes a sixth set of steps, a seventh set of steps, and an eighth set of steps.

The sixth set of steps for maintaining the cranking rotational frequency N when the inclination angle θ is changed during a mainly hill-climbing operation will be described with reference to FIG 10 , When it is determined that the inclination angle θ is greater than or equal to the first predetermined angle θX in step S28 in FIG 5 , determines the controller 54 that the bike 10 Uphill drives in step S71 and proceeds to step S72. The process of step S71 may be omitted.

After setting at least one of the last (or youngest) first threshold NX and the last (or most recent) second threshold NY based on an output of the tilt sensor 60 and the vehicle speed sensor 78 in step S72, the controller determines 54 Whether or not the amount of change of the inclination angle θ in the increasing direction has become greater than or equal to a first change amount. The first exchange rate is z. Example, an angle corresponding to a rising road gradient of 1%.

If YES is determined in step S72, the controller determines 54 whether or not the travel distance of the bike 10 that has increased, after setting at least one of the last first threshold NX and the last second threshold NY, greater than or equal to a first travel distance, in step S73. The first travel distance is z. B. 5 m.

If YES is determined in step S73, the controller changes 54 the first threshold value NX and the second threshold value NY in step S74, and terminates the sixth set of steps. The taxman 54 represents the rotation frequency obtained by subtracting a predetermined rotation frequency from the current crank rotation frequency N as the second threshold value NY in the first switching condition. The predetermined, to be subtracted rotational frequency is z. B. 3 rpm. The controller 54 sets the rotation frequency obtained by adding a predetermined rotation frequency to the changed second threshold value NY as the first threshold value NX in the first switching condition. The predetermined, to be added rotational frequency is z. 20 rpm. If NO is determined in step S73, the controller ends 54 the sixth set of steps.

If NO is determined in step S72 after setting at least one of the last first threshold NX and the last second threshold NY in step S75, the controller determines 54 Whether or not the amount of change of the inclination angle θ in the decreasing direction has become greater than or equal to a second exchangeable amount. The second exchange rate is z. As an angle, which corresponds to a descending road gradient of 2%. When it is determined that the amount of change of the inclination angle θ in the decreasing direction is smaller than the second change amount, the controller ends 54 the sixth set of steps.

When it is determined that the amount of change of the inclination angle θ in the decreasing direction is greater than or equal to the second change amount, the controller determines 54 whether or not the travel distance of the bicycle 10 that has increased, after setting at least one of the last first threshold NX and the last second threshold NY, greater than or equal to the first travel distance, in step S76. If it is determined / that the raised travel distance of the bicycle 10 is smaller than the first travel distance, the taxman finishes 54 the sixth set of steps.

If it is determined / that the raised travel distance of the bicycle 10 is greater than or equal to the first travel distance, the controller changes 54 the first threshold value NX and the second threshold value NY in step S77 and terminate the sixth set of steps. The taxman 54 changes the first threshold NX and the second threshold NY in the first switching condition to the first threshold NX and the second threshold NY for travel. When the sixth set of steps is completed, the controller proceeds 54 to the process of step S22.

The seventh set of steps for maintaining the crank rotational frequency N when the inclination angle θ is changed during a mainly downhill will be described with reference to FIG 11 ,

If it is determined that the inclination angle θ is smaller than the first predetermined angle θX in step S28 in FIG 5 , determines the controller 54 in step S81, whether or not the inclination angle θ is equal to or smaller than the second predetermined angle θY is based on the outputs of the inclination sensor 60 and the vehicle speed sensor 78 , The second predetermined angle θY is preferably selected to be an angle corresponding to a descending road gradient of 2% to 10%. The second predetermined angle θY is z. 1.1 degrees, which corresponds to a descending road gradient of 2%.

If YES is determined in step S81, then the controller determines 54 that the bike 10 Downhill goes to step S82 and proceeds to step S83. The process of step S82 may be omitted.

The taxman 54 determines whether or not the amount of change of the inclination angle θ in the decreasing direction is greater than or equal to a third change amount based on the outputs of the inclination sensor 60 and the vehicle speed sensor 78 in step S83. The third exchange rate is z. As an angle corresponding to a descending road gradient of 1%.

If YES is determined in step S83, the controller determines 54 in step S84, whether or not the travel distance of the bicycle 10 which has increased after setting at least the last first threshold NX and the last second threshold NY is greater than or equal to a second travel distance. The second travel distance is z. B. 5 m.

If YES is determined in step S84, the controller changes 54 the first threshold value NX and the second threshold value NY in step S85, and terminates the seventh set of steps. The taxman 54 sets the rotation frequency obtained by subtracting a predetermined rotation frequency from the current crank rotation frequency N as the second threshold value NY in the third switching condition. The predetermined, to be subtracted rotational frequency is z. B. 3 rpm. The controller 54 represents the rotation frequency obtained by adding a predetermined rotation frequency to the changed second threshold value NY as the first threshold value NX in the third switching condition. The predetermined, to be added rotational frequency is z. 20 rpm. If NO is determined in step S84, the controller ends 54 the seventh set of steps.

If NO is determined in step S84, the controller determines 54 in step S86, whether or not the amount of change of the inclination angle θ in the increasing direction is greater than or equal to a fourth change amount. The fourth exchange rate is z. As an angle corresponding to a rising road gradient of 2%. If NO is determined in step S86, the controller ends 54 the seventh set of steps.

If YES is determined in step S86, the controller determines 54 in step S87, whether or not the travel distance of the bicycle 10 , which has increased, after adjusting at least the last one first threshold value NX and the last second threshold value NY is greater than or equal to a second travel distance. The second travel distance is z. B. 5 m. When the bicycle is raised travel distance 10 less than the second travel distance, the controller finishes 54 the seventh set of steps.

If YES is determined in step S87, the controller changes 54 the first threshold value NX and the second threshold value NY in step S88, and terminates the seventh set of steps. The taxman 54 changes the first threshold NX and the second threshold NY in the third switching condition to the first threshold NX and the second threshold NY for traveling. When the seventh set of steps is completed, the controller proceeds 54 to the process of step S22.

The eighth set of steps for maintaining the cranking rotational frequency N when driving on a flat road will be described with reference to FIG 12 , If NO is determined in step S81 in FIG 11 , then the controller determines 54 in step S91 that the bicycle 10 on a flat road because the inclination angle θ is an angle smaller than the first predetermined angle θX, and exceeds the second predetermined angle θY. The process of step S81 may be omitted.

The taxman 54 determines in step S92 whether or not the inclination angle θ exceeds 0 degrees based on the outputs of the inclination sensor 60 and the vehicle speed sensor 78 ,

When the inclination angle θ exceeds 0 degree, the controller changes 54 in step S93, the first threshold value NX and the second threshold value NY in the second switching condition to the first threshold value NX and the second threshold value NY for traveling, and terminates the eighth set of steps.

If the inclination angle is less than or equal to 0 degrees, the controller changes 54 of the second embodiment, in step S94, the first threshold value NX and the second threshold value NY in the fourth switching condition to the first threshold value NX and the second threshold value NY for traveling, and terminates the eighth set of steps. When the eighth set of steps is finished, the controller proceeds 54 to the step of step S22.

• (10) Der Steuerer 54 stellt eine erste Schaltbedingung ein durch Wechseln zumindest des zweiten Schwellenwerts NY, basierend darauf, dass der Neigungswinkel θ größer oder gleich dem ersten vorbestimmten Winkel θX ist, und auf der Tatsache, dass der Neigungswinkel θ gewechselt hat. Wenn entsprechend der Neigungswinkel θ gewechselt ist/wird, während das Fahrrad 10 bergauf fährt, ist es weniger wahrscheinlich, dass die Kurbeldrehfrequenz N stark wechselt von der Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher kleiner ist als ein erster vorbestimmter Winkel θX hin zu einem Wert, welcher größer oder gleich dem ersten vorbestimmten Winkel θX ist.
• (11) Der Steuerer 54 stellt eine erste Schaltbedingung ein durch Anheben zumindest des zweiten Schwellenwerts NY, basierend darauf, dass das Wechselausmaß größer oder gleich einem ersten Wechselausmaß ist, wenn der Neigungswinkel θ gewechselt hat in einer zunehmenden Richtung. Entsprechend ist/wird eine Runterschaltsteuerung einfach ausgeführt wenn der Neigungswinkel θ zunimmt und die Kurbeldrehfrequenz N abnimmt, während das Fahrrad 10 bergauf fährt. Entsprechend kann ein Erhalten eines Zustands, in welchem die Last des Fahrers groß ist, unterdrückt sein/werden.
• (12) Der Steuerer 54 stellt eine erste Schaltbedingung ein durch Absenken zumindest des zweiten Schwellenwerts NY, basierend darauf, dass das Wechselausmaß größer oder gleich einem zweiten Wechselausmaß ist, wenn der Neigungswinkel θ gewechselt hat in einer abnehmenden Richtung. Auch wenn entsprechend der Neigungswinkel θ wechselt in einer abnehmenden Richtung, während das Fahrrad 10 bergauf fährt, ist/wird eine Runterschaltsteuerung weniger leicht ausgeführt; daher kann ein exzessives Anheben der Kurbeldrehfrequenz N unterdrückt sein/werden.
• (13) Wenn der Neigungswinkel θ größer oder gleich dem ersten vorbestimmten Winkel θX ist, stellt der Steuerer 54 die erste Schaltbedingung ein basierend darauf, dass die angehobene Reiseentfernung des Fahrrades 10 größer oder gleich einer zweiten Reisedistanz ist. Entsprechend kann ein häufiges Wechseln der ersten Schaltbedingung unterdrückt sein/werden.
• (14) Der Steuerer 54 bewirkt, dass das Schaltwerk 58 betätigt ist/wird basierend auf der Kurbeldrehfrequenz N des Fahrrades 10, und der dritten Schaltbedingung, wenn der Neigungswinkel θ kleiner ist oder gleich dem zweiten vorbestimmten Winkel θY ist, welcher kleiner ist als null Grad. Die Kurbeldrehfrequenz N, wenn der Neigungswinkel θ kleiner oder gleich dem zweiten vorbestimmten Winkel θX geworden ist, kommt zum Liegen innerhalb des Bereichs zwischen dem ersten Schwellenwert NX und dem zweiten Schwellenwert NY nach einem Wechsel. Wenn entsprechend der Neigungswinkel θ kleiner oder gleich dem zweiten vorbestimmten Winkel θX geworden ist, steuert der Steuerer 54 das zu erhaltende Schaltwerk 58 in der Nähe der Kurbeldrehfrequenz N, bevor sie kleiner oder gleich dem zweiten vorbestimmten Winkel θY geworden ist. Wenn entsprechend der Neigungswinkel θ wechselt von einem Wert, welcher den zweiten vorbestimmten Winkel θY überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel θY ist, wird es weniger wahrscheinlich, dass die Kurbeldrehfrequenz N wechselt; daher kann ein Abnehmen in der Muskelantriebskraft unterdrückt sein/werden.
• (15) Der Steuerer 54 stellt eine dritte Schaltbedingung ein durch Wechseln zumindest des ersten Schwellenwerts NX, basierend darauf, dass der Neigungswinkel θ kleiner oder gleich dem zweiten vorbestimmten Winkel θY ist und auf der Tatsache, dass der Neigungswinkel θ gewechselt hat. Wenn entsprechend der Neigungswinkel θ gewechselt ist/wird, während das Fahrrad 10 bergab fährt, ist es weniger wahrscheinlich, dass die Kurbeldrehfrequenz N stark wechselt von der Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher den zweiten vorbestimmten Winkel θY überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel θY ist.
• (16) Der Steuerer 54 stellt eine dritte Schaltbedingung ein durch Absenken zumindest des ersten Schwellenwerts NX, basierend darauf, dass das Wechselausmaß größer oder gleich einem dritten Wechselausmaß ist, wenn der Neigungswinkel θ gewechselt hat in einer abnehmenden Richtung. Entsprechend ist/wird eine Hochschaltsteuerung einfach ausgeführt wenn der Neigungswinkel θ abnimmt und die Kurbeldrehfrequenz N zunimmt, während das Fahrrad 10 bergab fährt. Entsprechend ist es weniger wahrscheinlich, dass die Kurbeldrehfrequenz N stark zunimmt.
• (17) Der Steuerer 54 stellt eine dritte Schaltbedingung ein durch Anheben zumindest des ersten Schwellenwerts NX, basierend darauf, dass das Wechselausmaß größer oder gleich einem vierten Wechselausmaß ist, wenn der Neigungswinkel θ gewechselt hat in einer zunehmenden Richtung. Wenn entsprechend der Neigungswinkel θ wechselt in der zunehmenden Richtung, während das Fahrrad 10 bergab fährt, ist/wird eine Hochschaltsteuerung weniger leicht ausgeführt; daher ist es weniger wahrscheinlich, dass die Last des Radfahrers zunimmt.
• (18) Wenn der Neigungswinkel θ kleiner ist oder gleich dem zweiten vorbestimmten Winkel θY ist, stellt der Steuerer 54 die dritte Schaltbedingung ein basierend darauf, dass die angehobene Reiseentfernung des Fahrrades 10 größer oder gleich einer zweiten Reisedistanz ist. Entsprechend kann ein häufiges Wechseln der dritten Schaltbedingung unterdrückt sein/werden.
• (19) In der dritten Schaltbedingung die Differenz zwischen Schwellenwert NY und der Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher den zweiten vorbestimmten Winkel θY überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel θY ist, größer ist als die Differenz zwischen dem ersten Schwellenwert NX und der Kurbeldrehfrequenz N bei einem Wechsel des Neigungswinkels θ von einem Wert, welcher den zweiten vorbestimmten Winkel θY überschreitet, hin zu einem Wert, welcher kleiner oder gleich dem zweiten vorbestimmten Winkel θY ist. Entsprechend ist ein Ändern des Gangverhältnisses γ einfacher auszuführen, wenn die Kurbeldrehfrequenz N absteigt als bei einem Ansteigen. Entsprechend ist/wird das Schaltwerk 58 einfach betätigt in einer Richtung, in welcher das Gangverhältnis γ zunimmt, wenn die Kurbeldrehfrequenz N angehoben ist/wird wenn der Neigungswinkel θ kleiner ist oder gleich dem zweiten vorbestimmten Winkel θY ist. Entsprechend ist es weniger wahrscheinlich, dass die Kurbeldrehfrequenz N stark zunimmt während eines Bergabfahrens.

In addition to the above effects (1) to (9), the controller exercises 54 Further, the following effects.

• (10) The taxpayer 54 sets a first switching condition by changing at least the second threshold value NY based on that the inclination angle θ is greater than or equal to the first predetermined angle θX, and on the fact that the inclination angle θ has changed. When the inclination angle θ is changed accordingly, while the bicycle 10 Ascending, it is less likely that the crank rotational frequency N changes sharply from the crank rotational frequency N upon changing the inclination angle θ from a value smaller than a first predetermined angle θX to a value equal to or larger than the first predetermined angle θX is.
• (11) The taxpayer 54 sets a first shift condition by raising at least the second threshold value NY based on that the shift amount is equal to or larger than a first shift amount when the tilt angle θ has changed in an increasing direction. Accordingly, a downshift control is simply performed when the inclination angle θ increases and the cranking rotational speed N decreases while the bicycle 10 goes uphill. Accordingly, obtaining a state in which the load of the driver is large can be suppressed.
• (12) The taxpayer 54 sets a first switching condition by lowering at least the second threshold value NY based on that the alternation amount is equal to or more than a second alternation amount when the inclination angle θ has changed in a decreasing direction. Also, if the angle of inclination θ changes in a decreasing direction while the bike 10 uphill, a downshift control is less easily performed; therefore, excessive lifting of the cranking rotational frequency N can be suppressed.
• (13) When the inclination angle θ is greater than or equal to the first predetermined angle θX, the controller sets 54 the first switching condition based on the fact that the increased travel distance of the bicycle 10 is greater than or equal to a second travel distance. Accordingly, frequent switching of the first switching condition can be suppressed.
• (14) The taxpayer 54 causes the rear derailleur 58 is operated / is based on the crank rotational frequency N of the bicycle 10 , and the third switching condition when the inclination angle θ is smaller than or equal to the second predetermined angle θY which is smaller than zero degrees. The crank rotational frequency N when the inclination angle θ has become equal to or smaller than the second predetermined angle θX comes to rest within the range between the first threshold NX and the second threshold value NY after a change. Accordingly, when the inclination angle θ has become smaller than or equal to the second predetermined angle θX, the controller controls 54 the rear derailleur to be obtained 58 near the crank rotational frequency N before it has become smaller than or equal to the second predetermined angle θY. Accordingly, when the inclination angle θ changes from a value exceeding the second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY, the crank rotational frequency N is less likely to change; therefore, a decrease in the muscle driving force can be suppressed.
• (15) The taxpayer 54 sets a third shift condition by changing at least the first threshold value NX based on that the inclination angle θ is less than or equal to the second predetermined angle θY and on the fact that the inclination angle θ has changed. When the inclination angle θ is changed accordingly, while the bicycle 10 downhill, it is less likely that the crank rotational frequency N changes sharply from the crank rotational frequency N upon a change of the inclination angle θ from a value exceeding the second predetermined angle θY to a value equal to or less than the second predetermined angle θY is.
• (16) The taxman 54 sets a third shift condition by lowering at least the first threshold value NX based on that the shift amount is greater than or equal to a third shift amount when the tilt angle θ has changed in a decreasing direction. Accordingly, an upshift control is simply performed when the inclination angle θ decreases and the cranking rotational speed N increases while the bicycle 10 downhill drives. Accordingly, the cranking rotational frequency N is less likely to increase greatly.
• (17) The taxman 54 sets a third shift condition by increasing at least the first threshold value NX based on that the shift amount is equal to or more than a fourth shift amount when the tilt angle θ has changed in an increasing direction. If, accordingly, the inclination angle θ changes in the increasing direction while the bicycle 10 downhill, an upshift control is less easily performed; therefore, the burden of the cyclist is less likely to increase.
• (18) When the inclination angle θ is smaller than or equal to the second predetermined angle θY, the controller sets 54 the third shift condition based on the fact that the increased travel distance of the bicycle 10 is greater than or equal to a second travel distance. Accordingly, frequent switching of the third switching condition can be suppressed.
• (19) In the third switching condition, the difference between the threshold value NY and the crank rotational frequency N at a change of the inclination angle θ from a value exceeding the second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY, is greater than the difference between the first threshold value NX and the crank rotational frequency N at a change of the inclination angle θ from a value exceeding the second predetermined angle θY to a value smaller than or equal to the second predetermined angle θY. Accordingly, changing the gear ratio γ is easier to carry out when the cranking rotational frequency N decreases than when increasing. According to / is the rear derailleur 58 simply operated in a direction in which the gear ratio γ increases when the cranking rotational frequency N is raised when the inclination angle θ is smaller than or equal to the second predetermined angle θY. Accordingly, the cranking rotational frequency N is less likely to increase sharply during downhill driving.

• • Die Fahrzeuggeschwindigkeit V kann verwendet sein/werden anstelle der Kurbeldrehfrequenz N als der Parameter, darstellend den Fahrzustand des Fahrrades 10. In diesem Fall speichert die Speichereinheit 82 den ersten Schwellenwert VX und den zweiten Schwellenwert VY für ein Reisensowie als den ersten Schwellenwert NX und den zweiten Schwellenwert NY für ein Starten, betreffend die Fahrzeuggeschwindigkeit V. Ein Satz von Schritten, welcher die Fahrzeuggeschwindigkeit V verwendet, wird beschrieben werden unter Verwendung eines modifizierten Beispiels des fünften Satzes von Schritten, in 13 gezeigt,.

The precise shape which the present rear derailleur control apparatus can take is not limited to the shapes shown in the above-described embodiments. The present bicycle transmission control apparatus may take various forms, which are different from the above-described embodiments. The modified example of the above-described embodiments, as shown below, is an example of the various forms that the present transmission control apparatus can assume.

• The vehicle speed V may be used instead of the crank rotational frequency N as the parameter representing the running state of the bicycle 10 , In this case, the storage unit stores 82 the first threshold VX and the second threshold VY for a trip as the first threshold NX and the second threshold NY for starting, regarding the vehicle speed V. A set of steps using the vehicle speed V will be described using a modified example of the fifth set of steps, in 13 shown,.

The taxman 54 In step S61, the second threshold value VY changes based on the vehicle speed V upon a change of the inclination angle θ from a value smaller than a first predetermined angle θX to a value equal to or larger than the first predetermined angle θX. In particular, the controller changes 54 a value obtained by subtracting a first predetermined vehicle speed from the speed V when the inclination angle θ has become greater than or equal to the first predetermined angle θX, to the second threshold value VY. The taxman 54 changes the first threshold VX based on the second threshold VY in step S62. In particular, changes the taxman 54 the rotation frequency obtained by adding a second predetermined vehicle speed to the second threshold VY which is set to the first threshold VX in step S61.

The controller then determines 54 Whether or not the vehicle speed V is greater than or equal to the first predetermined threshold VX is in step S63. When the vehicle speed V is greater than or equal to the first predetermined threshold VX, the controller performs 54 an upshift control off in step S64. That is, when the vehicle speed V exceeds the first threshold VX, which is the first threshold, the controller controls 54 the rear derailleur 58 , so that the gear ratio γ increases. If the vehicle speed V is less than the first threshold VX, then the controller determines 54 , above or not, the vehicle speed V is smaller than the second threshold value VY in step S65. When the vehicle speed V is smaller than the second threshold VY, the controller performs 54 a downshift control from in step S66. That is, when the vehicle speed V becomes smaller than the second threshold VY, which is the second threshold, the controller controls 54 the rear derailleur 58 , so that the gear ratio γ decreases. On the other hand, when the vehicle speed V is equal to or higher than the second predetermined threshold value VZ in step S65, that is, when the vehicle speed V is within a range smaller than the first threshold VX and higher than the second threshold VY, the controller performs 54 not an upshift control or a downshift control.

The rear derailleur 58 may be made to operate based on the crank rotational frequency N and the fifth shift condition until the crank rotational frequency reaches N and a predetermined threshold. Specifically, the process of step S100 in FIG 14 in place of step S23 of the first set of steps in FIG 5 , If it is determined that a zero-start flag is set in step S22, the controller clears 54 the zero start flag is not When cranking rotational frequency N is less than or equal to a predetermined value in step S100, and proceeds to step S25. On the other hand, if the cranking rotation frequency N is larger than the predetermined value, the controller clears 54 the zero start flag in step S24 and proceeds to step S25. That is, if the bike 10 starting to drive from a stopped state, the controller causes 54 that the rear derailleur 58 is operated based on the crank rotational frequency N and the fifth shift condition until the crank rotational frequency reaches N and a predetermined threshold.

A vehicle speed detection device 56 can also be provided at the rear derailleur 58 , In this case, / is z. B. the magnet 76 arranged on one of the pair of rollers 64A , and the vehicle speed sensor 78 is / is provided at the chain guide 65 or the coupling member 66 , The vehicle speed sensor 78 outputs a signal corresponding to the speed of rotation of the roller 64A , which represents the vehicle speed V. The taxman 54 calculates the vehicle speed V based on the output of the vehicle speed sensor 78 , the circumferential length of the roll 64A and the gear ratio γ. The role 64A may be configured as a dynamo, and the rotary pulse of the dynamo, which is a signal representing the vehicle speed V, may also be output to the controller 54 , By not providing a one-way clutch between the sprocket 40 and the chain 42 but instead providing a one-way clutch between the crankshaft 44 and the front sprocket 48 , can the role 64A be rotated in this case, even if the bike 10 drives and the rotation of the crankshaft 44 stopped is / is. Accordingly, the vehicle speed V can be detected by the vehicle speed detecting device 56 even if the rotation of the crankshaft 44 stopped is / is.

• • Die Fahrzeuggeschwindigkeitsdetektionsvorrichtung 56 kann ausgestaltet sein durch eine Kurbeldrehungsdetektionsvorrichtung 84. In diesem Fall ist/wird die Fahrzeuggeschwindigkeit V berechnet basierend auf der Kurbeldrehfrequenz N, dem Gangverhältnis γ und der Umfangslänge des Hinterrades 14.

The vehicle speed detection device 56 can also be configured as a GPS receiver (Global Positioning System). In this case, the vehicle speed V is calculated based on position information and travel time.

• The vehicle speed detection device 56 may be configured by a crank rotation detecting device 84 , In this case, the vehicle speed V is calculated based on the crank rotational frequency N, the gear ratio γ and the circumferential length of the rear wheel 14 ,

• • Der Neigungssensor 60 kann vorgesehen sein/werden an Fahrradkomponenten wie z.B. dem Vorderumwerfer, Der Hinterumwerfer, oder Betätigungseinheit.

The acceleration sensor 74 can also be omitted from the tilt sensor 60 ,

• • The tilt sensor 60 may be provided on bicycle components such as the front derailleur, the rear derailleur, or operating unit.

The rear derailleur 58 can also be a front derailleur. The front derailleur is attached to the frame 24 , preferably on the seat tube 24C , near the crankshaft 44 , The front derailleur switches the Chain 42 between a plurality of front sprockets by means of a drive of an actuator (not shown) provided on the front derailleur for changing the gear ratio γ of the bicycle 10 ,

The rear derailleur 58 may include a front derailleur and a rear derailleur. In case the front derailleur and the rear derailleur are automatically controlled, the controller controls 54 at least one of the front derailleur and the rear derailleur for performing a shift according to an order of the gear ratio γ, which is set in advance.

The taxman 54 can be provided on the vehicle body 16 , such as the frame 24 , the steering rod 26 or the trunk 26A ,

The rear derailleur 58 can be changed to a hub gearbox 58 , For example, a derailleur, which is attached / is a shaft 14A of the rear wheel 14 and installed in a hub shell can be used. In this case the rear derailleur can be changed to a hub gearbox 58 which is provided around the crankshaft 44 ,

As in 15 can also be a switch 88 for setting the initial value of the inclination angle θ to be provided to the derailleur device 52 , In this case, the operator places the bicycle 10 in a flat place in a stopped state and presses the switch 88 , The taxman 54 stores the tilt angle θ when the switch 88 is pressed as the initial value in the memory unit 82 , The taxman 54 calculates the inclination angle θ based on the stored initial value in step S15, which are the calculation steps for the inclination angle θ. The initial value of the inclination angle θ can be set by using a computer which can be connected to the controller 54 by wiring or wireless instead of the switch 88 ,

The road gradient may be used instead of the inclination angle θ in step S28 and step S42. In this case, the controller calculates 54 the road gradient from the inclination angle θ. The taxman 54 sets a first shift condition when the road gradient is greater than or equal to a predetermined gradient, and sets a second shift condition when the road gradient is smaller than the predetermined gradient.

• • Eine Anzeigevorrichtung kann montiert sein/werden am Fahrrad 10 zum Berechnen des Neigungswinkels oder des Straßengradienten, welcher berechnet ist/wird basierend auf dem Neigungswinkel θ.

The inclination angle θ may be calculated as a roll angle, or as a value including the roll angle and the pitch angle of the bicycle 10 ,

• • A display device can be mounted on the bike 10 for calculating the inclination angle or the road gradient, which is calculated based on the inclination angle θ.

The taxman 54 may also be configured to change at least the second threshold value NY in step S74 and step S77 of the sixth set of steps. The taxman 54 may also be configured to change at least the first threshold NX in step S85 or step S88 of the seventh set of steps.

In step S72, the controller 54 set a first switching condition by changing at least the second threshold value NY based on that the change rate is greater than or equal to a first ratio when the inclination angle θ has changed in an increasing direction.

In step S75, the controller 54 set a first switching condition by changing at least the second threshold value NY based on that the change rate is greater than or equal to a second ratio when the inclination angle θ has changed in a decreasing direction.

In at least one of step S73 and step S76, the controller may 54 also set the first switching condition based on the expired travel time of the bicycle, which is greater than or equal to a first travel time.

In the sixth set of steps, the controller 54 also at least omitting step S73 and step S76. In the seventh set of steps can in the same way the controller 54 also at least omitting step S84 and step S87.

In step S74, the controller 54 also get the first threshold NX in the first switching condition. In the same way, in step S76, the controller 54 also get the first threshold NX in the first switching condition.

In step S83, the controller 54 set a third shift condition by changing at least the first threshold value NX based on that the shift rate is greater than or equal to a third ratio when the tilt angle θ has changed in a decreasing direction. The taxman 84 This modified example may change at least the first threshold value NX whenever the rate of change of the inclination angle θ becomes greater than or equal to the third ratio.

In step S86, the controller may 54 set a third shift condition by changing at least the first threshold value NX based on that the change rate is greater than or equal to a fourth ratio when the inclination angle θ has changed in an increasing direction. The taxman 84 This modified example may change at least the first threshold value NX whenever the rate of change of the inclination angle θ becomes greater than or equal to the fourth ratio.

In at least one of step S84 and step S87, the controller may 54 also set the third switching condition based on the elapsed travel time of the bicycle, which is greater than or equal to a second travel time.

At least one of the parameters of the first change amount, the second change amount, the third change amount, the fourth change amount, the first travel distance, the second travel distance, the first ratio, the second ratio, the third ratio, the fourth ratio, the first travel time, and the second Travel time may be configured to be changeable by means of an external device or a bicycle computer which is connected to the transmission control apparatus 50 by wiring or wirelessly.

The taxman 54 also can the rear derailleur control 50 controlling by combining the second set of steps, the fourth set of steps, the sixth set of steps, and the seventh set of steps. In this case, for example, the controller steps 54 to step S71 in FIG 10 if NO is determined in step S31 in FIG 6 , and proceeds to step S81 in FIG 11 if NO is determined in step S45 in FIG 8th ,

In step S85, the controller 54 also get the second threshold value NY in the third switching condition. In the same way, in step S88, the controller 54 also get the second threshold value NY in the third switching condition.

A bicycle transmission control apparatus is also disclosed, comprising a controller that operates a derailleur according to a parameter representing a traveling state of a bicycle and predetermined shifting conditions, wherein the controller 54 causes the rear derailleur 58 is operated based on the parameter representing the running state of the bicycle of the bicycle and the predetermined shift condition until the value representing the running state of the bicycle reaches a predetermined value at a starting from a state in which the bicycle is stopped / becomes.

The bicycle transmission control apparatus as mentioned above may be configured such that the parameter representing the running state of the bicycle is a gear ratio of the bicycle.

LIST OF REFERENCE NUMBERS

10

Bicycle,

50

Derailleur control apparatus,

54

controller,

60

Tilt sensor,

78

Vehicle speed sensor.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2015-127964 [0001, 0001]
• JP 2015-228937 [0001, 0001]
• JP 10-511621 [0003, 0004]

Claims (34)

 A bicycle transmission control apparatus, comprising: a controller configured to operate a derailleur to be operated according to a parameter representing a running state of a bicycle and a predetermined shifting condition; wherein the controller is further configured to set the predetermined shift condition based on the parameter representing the running state of the bicycle and a tilt angle of the bicycle. The bicycle transmission control apparatus according to claim 1, wherein the predetermined shift condition includes a threshold value relating to the parameter, representing the running state of the bicycle, and the controller is configured to set the predetermined shift condition by changing the threshold value.  The bicycle transmission control apparatus according to claim 2, wherein the threshold includes a first threshold and a second threshold smaller than the first threshold, and the controller is configured to operate the derailleur when a value of a parameter representative of the running state of the bicycle is changed from a value less than the first threshold to a value greater than or equal to the first threshold, or when the value of the parameter representing the driving condition of the bicycle changes from a value exceeding the second threshold; to a value that is less than or equal to the second threshold.  The bicycle transmission control apparatus according to claim 3, wherein the controller is configured to control the derailleur so that the gear ratio of the bicycle increases when the value of the parameter representing the running state of the bicycle changes from a value smaller than the first threshold. to a value greater than or equal to the first threshold and controls the derailleur so that the gear ratio of the bicycle decreases as the value of the parameter representing the driving condition of the bicycle changes from a value exceeding the second threshold. to a value that is less than or equal to the second threshold.  The bicycle transmission control apparatus according to claim 1, wherein the predetermined shift condition includes a first shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle and the first shift condition as the tilt angle becomes larger or equal to a first predetermined angle exceeding zero degrees.  The bicycle transmission control apparatus according to claim 5, when dependent on claim 3 or 4, wherein the controller sets a first shift condition by changing at least the second threshold based on the inclination angle which is greater than or equal to the first predetermined angle, and a fact that the inclination angle changes Has.  The bicycle transmission control apparatus according to claim 6, wherein the controller is further configured to set the first shift condition by raising at least the second threshold based on a change rate greater than or equal to a first ratio when the tilt angle has changed in an increasing direction, an amount of change greater than or equal to a first amount of change when the angle of inclination has changed in an increasing direction.  The bicycle transmission control apparatus according to claim 6, wherein the controller is configured to set the first shifting condition by lowering at least the second threshold based on a shifting rate that is greater than or equal to a second ratio when the tilting angle has changed in a decreasing direction. or an amount of change greater than or equal to a second change amount when the inclination angle has changed in a decreasing direction.  The bicycle transmission control apparatus according to claim 5, wherein the controller is configured to set the first shifting condition when the inclination angle is greater than or equal to the first predetermined angle based on a raised travel distance of the bicycle greater than or equal to a first travel distance. or an expired travel time of the bicycle which is greater than or equal to a first travel time. A bicycle transmission control apparatus according to any one of claims 5 to 9, wherein the controller is configured to set the first shifting condition based on a parameter representing the Driving condition of the bicycle when the inclination angle changes from a value which is smaller than the first predetermined angle, to a value which is greater than or equal to the first predetermined angle.  The bicycle transmission control apparatus according to claim 10 when dependent on claim 3 or 4, wherein the first threshold in the first shift condition is greater than the value of the parameter representing the running condition of the bicycle when the tilt angle changes from a value smaller than the first predetermined one Angle to a value greater than or equal to the first predetermined angle, and wherein the second threshold in the first switching condition is greater than the value of the parameter representing the driving condition of the bicycle when the pitch angle changes from a value which is smaller is the first predetermined angle toward a value greater than or equal to the first predetermined angle.  The bicycle transmission control apparatus according to claim 11, wherein a difference between the value of the parameter representing the running state of the bicycle when the inclination angle changes from a value smaller than the first predetermined angle to a value greater than or equal to the first predetermined angle is and the second threshold in the first shift condition is smaller than the difference between the value of the parameter representing the running state of the bicycle when the tilt angle changes from a value smaller than the first predetermined angle to a value greater than or equal to the first predetermined angle, and the first threshold in the first switching condition.  The bicycle transmission control apparatus according to claim 5, wherein the predetermined shift condition includes a second shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle and the second shift condition when the tilt angle is zero Degrees and is smaller than the first predetermined angle.  The bicycle transmission control apparatus according to claim 1, wherein the predetermined shift condition includes a third shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle and the third shift condition as the tilt angle becomes smaller or equal to a second predetermined angle which is less than zero degrees.  A bicycle transmission control apparatus according to claim 14, which depends directly or indirectly on claim 3 or 4, wherein the controller adjusts the third shift condition by changing at least the first threshold value based on the inclination angle which is smaller than or equal to the second predetermined angle, and on the fact that the angle of inclination has changed.  The bicycle transmission control apparatus according to claim 15, wherein the controller is configured to set the third shift condition by decreasing at least the first threshold based on the change rate which is greater than or equal to a third ratio when the tilt angle has changed in a decreasing direction Change amount, which is greater than or equal to a third change amount when the inclination angle has changed in a decreasing direction.  The bicycle transmission control apparatus according to claim 15, wherein the controller is configured to set the third shifting condition by raising at least the first threshold based on the shifting rate which is greater than or equal to a fourth ratio when the tilting angle has changed in an increasing direction. or the amount of change that is greater than or equal to a fourth change amount when the inclination angle has changed in an increasing direction.  A bicycle transmission control apparatus according to any one of claims 14 to 17, wherein the controller is configured to set the third shift condition when the inclination angle is equal to or smaller than a second predetermined angle based on a raised travel distance of the bicycle greater than or equal to a second travel distance. or an expired travel time of the bicycle which is greater than or equal to a second travel time. The bicycle transmission control apparatus according to any one of claims 14 to 18, wherein the controller is configured to set the third shift condition based on a parameter representing the running condition of the bicycle when the pitch angle changes from a value corresponding to the second exceeds a predetermined angle which is less than or equal to the second predetermined angle.  A bicycle transmission control apparatus according to claim 19 when dependent on claim 3 or 4, wherein the first threshold in the third shift condition is smaller than the value of the parameter representing the running condition of the bicycle when the tilt angle changes from a value exceeding the second predetermined angle. to a value that is less than or equal to the second predetermined angle, and the second threshold in the third shift condition is less than the value of the parameter representing the running state of the bicycle when the tilt angle changes from a value exceeding the second predetermined angle , to a value which is less than or equal to the second predetermined angle.  The bicycle transmission control apparatus according to claim 20, wherein a difference between the value of the parameter representing the running state of the bicycle when the inclination angle changes from a value exceeding the second predetermined angle to a value smaller than or equal to the second predetermined angle. and the second threshold in the third shift condition is greater than the difference between the value of the parameter representing the running state of the bicycle when the tilt angle changes from a value exceeding the second predetermined angle to a value less than or equal to second predetermined angle, and the first threshold in the third switching condition.  The bicycle transmission control apparatus according to claim 14, wherein the predetermined shift condition includes a fourth shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle and the fourth shift condition when the tilt angle becomes smaller is greater than zero degrees and exceeds the second predetermined angle.  The bicycle transmission control apparatus according to claim 1, wherein the predetermined shift condition includes a fifth shift condition, and the controller is configured to operate the derailleur based on the parameter representing the running state of the bicycle and the fifth shift condition until the driving state of the bicycle representing value reaches a predetermined value at a starting from a state in which the bicycle is stopped.  A bicycle transmission control apparatus according to claim 23 when directly or indirectly depending on claim 2, wherein said threshold in said fifth shift condition includes a third threshold and a fourth threshold. the third threshold corresponds to a first gear ratio, and the fourth gear ratio is greater than the third threshold and corresponds to a second gear ratio which is greater than the first gear ratio.  The bicycle transmission control apparatus according to any one of claims 1 to 24, wherein the predetermined shift condition includes a sixth shift condition, and the controller is configured to operate the derailleur when a signal for increasing the gear ratio of the bicycle is input by the operating unit that adjusts shift condition based on the parameter, representing the running state of the bicycle immediately after an operation of the derailleur, and the derailleur operates based on the parameter representing the driving state of the bicycle and the sixth shifting condition.  The bicycle transmission control apparatus according to any one of claims 1 to 25, wherein the predetermined shift condition includes a seventh shift condition, and the controller is configured to operate the derailleur when a signal for lowering the gear ratio of the bicycle is input by the operation unit, the seventh shift condition adjusting based on the parameter, representing the driving condition of the bicycle before operating the derailleur, and the derailleur operates based on the parameter representing the driving condition of the bicycle and the seventh shifting condition.  The bicycle transmission control apparatus according to claim 1, wherein the controller is configured to prohibit control of the derailleur according to the parameter representing the running state of the bicycle and the predetermined shifting condition until a predetermined time has elapsed after an acceleration occurred in the bicycle is generated exceeds a predetermined acceleration. A bicycle transmission control apparatus according to claim 27, wherein said predetermined period of time is set based on the amount of acceleration.  A bicycle transmission control apparatus according to any one of claims 1 to 28, wherein the parameter representing the running state of the bicycle is at least one of a rotational frequency of a bicycle crank of the bicycle and a cruising speed of the bicycle.  The bicycle transmission control apparatus according to claim 29, wherein the controller is configured to calculate the rotational frequency of the crank based on an output of a sensor that detects the rotational frequency of the bicycle crank.  The bicycle transmission control apparatus according to claim 29, wherein the controller is configured to calculate the rotational frequency of the crank based on an output of a sensor that detects the vehicle speed of the bicycle.  The bicycle transmission control apparatus according to any one of claims 1 to 31, wherein the controller is configured to calculate the inclination angle based on an output of a tilt sensor that detects the inclination angle of the bicycle.  A bicycle transmission control apparatus according to any one of claims 1 to 32, wherein the inclination angle of the bicycle is an inclination angle of a longitudinal direction of the bicycle.  The bicycle transmission control apparatus according to claim 33, wherein the inclination angle of the bicycle is a pitch angle of the bicycle.

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