Invention Grant
- Patent Title: Bicycle drive apparatus
- Patent Title (中): 自行车驱动装置
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Application No.: US13594521Application Date: 2012-08-24
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Publication No.: US08831810B2Publication Date: 2014-09-09
- Inventor: Akihiko Shoge , Etsuyoshi Watarai
- Applicant: Akihiko Shoge , Etsuyoshi Watarai
- Applicant Address: JP Osaka
- Assignee: Shimano Inc.
- Current Assignee: Shimano Inc.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors
- Priority: JP2011-186596 20110829
- Main IPC: B62M9/06
- IPC: B62M9/06 ; B62M25/08 ; B62M6/45

Abstract:
A bicycle drive apparatus includes a bicycle crankset, a bicycle transmission, a drive assistance electric motor and a microcomputer. The microcomputer includes an output control section, a gear shift feasibility determining section and a gear shift control section. The output control section controls an output of the drive assistance electric motor. The gear shift feasibility determining section determines if an output condition of the bicycle crankset satisfies a gear shift allowable condition. The gear shift control section receives a gear shift request, instructs the output control section to at least one of stop the output of the drive assistance electric motor and decrease the output of the drive assistance electric motor, and instructs the transmission to execute a gear shifting operation upon the gear shift permission determining section determining that the gear shift allowable condition is satisfied.
Public/Granted literature
- US20130054067A1 BICYCLE DRIVE APPARATUS Public/Granted day:2013-02-28
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