Search International and National Patent Collections

1. (WO2018123160) ELECTRIC ASSIST SYSTEM AND ELECTRIC ASSIST VEHICLE

Pub. No.:    WO/2018/123160    International Application No.:    PCT/JP2017/034146
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Sep 22 01:59:59 CEST 2017
IPC: B62M 6/45
B60L 9/18
B62J 99/00
Applicants: YAMAHA HATSUDOKI KABUSHIKI KAISHA
ヤマハ発動機株式会社
Inventors: HASUMI, Mitsuharu
蓮見 光晴
Title: ELECTRIC ASSIST SYSTEM AND ELECTRIC ASSIST VEHICLE
Abstract:
Provided is an electric assist system (51) that causes appropriate auxiliary power to be generated during inclined road travel. The electric assist system is used in an electric assist vehicle (10) and has: an electric motor (53) that generates auxiliary power for assisting the human power of an occupant of the electric assist vehicle; a control device (170) that controls the amount of auxiliary power generated by the electric motor; and an acceleration sensor (38) that outputs an acceleration signal indicating acceleration Gx in the traveling direction of the electric assist vehicle. The control device: obtains speed information indicating the travel speed of the electric assist vehicle, on the basis of an external signal; detects the angle of inclination of the road surface, on the basis of the speed information and an acceleration signal; and causes the electric motor to generate an amount of auxiliary power corresponding to the angle of inclination.