Title:
MOTOR-DRIVEN VEHICLE WITH PEDAL
Document Type and Number:
Japanese Patent JP3642442
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To eliminate a discontinuity feel at roughly maximum setting selfdriving speed and attain excellent comfortableness by indicating leg-power proportional auxiliary power as electric assist power when vehicle speed with foot pedaling during self-driving indication exceeds the maximum setting self- driving speed and indicating leg-power proportional assist power regardless the vehicle speed when the self-driving indication does not exist.
SOLUTION: Vehicle speed V is detected by a speed sensor 35, and leg-power proportional auxiliary power A which is proportional to leg-power FM detected by a leg-power sensor 34 is calculated by a controller 15. On the other hand, when the speed V exceeds the maximum set self-driving speed Vmax, the leg- power proportional assist power A is indicated as electric assist power regardless presence of self-driving indication, and resultant force F of the leg-power proportional assist power A outputted from an electric motor 31 and the leg- power FM is made a driving force. When the self-driving indication does not exist, the leg-power proportional assist power A is indicated as electric assist power regardless the vehicle speed V for electric assist driving. Therefore, the resultant force F is prevented from decreasing suddenly when the vehicle speed V by foot pedaling exceeds the maximum setting self-driving speed Vmax.
Inventors:
Takeo Fujita
Nozomi Takada
Nozomi Takada
Application Number:
JP7594996A
Publication Date:
April 27, 2005
Filing Date:
March 29, 1996
Export Citation:
Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA
International Classes:
B62M6/40; (IPC1-7): B62M23/02
Attorney, Agent or Firm:
Ryoichi Yamashita
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