TW357127B - Power assist apparatus of power assisted bicycle - Google Patents

Power assist apparatus of power assisted bicycle

Info

Publication number
TW357127B
TW357127B TW085103398A TW85103398A TW357127B TW 357127 B TW357127 B TW 357127B TW 085103398 A TW085103398 A TW 085103398A TW 85103398 A TW85103398 A TW 85103398A TW 357127 B TW357127 B TW 357127B
Authority
TW
Taiwan
Prior art keywords
power
assist
footpedal
propelling
shaft
Prior art date
Application number
TW085103398A
Other languages
Chinese (zh)
Inventor
Kosaku Yamauchi
Original Assignee
Suzuki Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Application granted granted Critical
Publication of TW357127B publication Critical patent/TW357127B/en

Links

Landscapes

  • Automatic Cycles, And Cycles In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A power assist apparatus of power assisted bicycle, comprizing a crank shaft extending in the transverse direction of the body of the bicycle and rotatably driven by a footpedal-propelling; an electric motor forgenerating an assist power; a power composition shaft rotably supported and extending in parallel with the crank shaft; a footpedal-propelling power transmission mechanism for transmitting the footpedal-propelling power to the power composition shaft at a right angle to the axis of the power composition shaft; an assist power transmission mechanism for transmitting the assist power to the power composition shaft at a right angle to the axis of the power composition shaft in the direction opposite to the direction in which the footpedal-propelling power is transmitted; a power composition output mechanism for outputting the rotating power of the power composition shaft to a driven wheel; a moment sensor for sensing a moment difference between 2 moments acting on the power composition shaft from 2 opposite directions when the footpedal-propelling power and the assist power are transmitted; and a control unit for claculating the assist ratio of the assist power to the footpedal-propelling power based on the magnitude and direction of the moment difference coming in from the moment sensor and controlling the output of the electric motor so that the assist ratio is kept at a constant ratio.
TW085103398A 1995-03-29 1996-03-21 Power assist apparatus of power assisted bicycle TW357127B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7172095A JPH08268375A (en) 1995-03-29 1995-03-29 Power assisted bicycle

Publications (1)

Publication Number Publication Date
TW357127B true TW357127B (en) 1999-05-01

Family

ID=13468648

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085103398A TW357127B (en) 1995-03-29 1996-03-21 Power assist apparatus of power assisted bicycle

Country Status (2)

Country Link
JP (1) JPH08268375A (en)
TW (1) TW357127B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012200232A1 (en) * 2012-01-10 2013-07-11 Robert Bosch Gmbh Drive device for an electric bicycle with force measurement for driver request detection
JP5628880B2 (en) * 2012-10-25 2014-11-19 株式会社シマノ Drive unit

Also Published As

Publication number Publication date
JPH08268375A (en) 1996-10-15

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