Sunstar S02 - Technical Information
What is an Electric-Power Assisted Bicycle? Magnitude of the electric-assist force The magnitude of the electric-assist force changes according to the force with which the pedals are pressed and the riding speed. There are three modes for the intelligent bike. Normal mode Refer to “Riding the intelligent bike” (page 47). z When starting to ride and the largest assist force is needed, the ratio between pedal force and electric-assist force is 1:1. z When the riding speed increases, the electric-assist force gradually decreases. z At speeds of 24 km/h or more, the electric-assist force becomes zero. Turbo mode Refer to “Riding with increased power” (page 49). z From 0 to 10 km/h, the ratio between pedal force and electric-assist force is 1:2. z When the riding speed increases in the range from 10 to below 24 km/h, the electric-assist force gradually decreases. z At speeds of 24 km/h or more, the electric-assist force becomes zero. Driving force (human pedaling force + electric -assist force) Human pedaling force : electric-assist force = 1:2 The electric -assist force decreases gradually. The electric -assist force becomes zero. Turbo mode Electric-assist force Normal mode Human pedaling force Start 10km/h 24km/h Bicycle speed 13 What is an Electric-Power Assisted Bicycle? Economy mode Refer to “Riding while conserving battery power” (page 50). z When starting to ride and the largest assist force is needed, the ratio between pedal force and electric-assist force is 1:1. z When the riding speed increases, the electric-assist force gradually decreases. z At speeds of 15 km/h or more, the electric-assist force becomes zero. Human pedaling force : electric-assist force = 1:1 The electric -assist force decreases gradually. Driving force (human pedaling force + electric -assist force) The electric -assist force becomes zero. Electric-assist force Economy mode Normal mode Human pedaling force Start 15km/h 24km/h Bicycle speed 14 Product specifications/Reference Product specifications With Turbo unit functioning Assistance with pedal force and Turbo-unit force equal 0 km/h to below 15 km/h Reduced assistance 15 km/h to below 24 km/h Drive method Assist-force control method Control proportional to the pedal force Type of motor DC brushless motor Motor output 250 W Weight Motor unit Front sprocket gear drive Ambient temperature for use 3.2 kg 0ºC to 40ºC Ambient temperature for storage -5ºC to 60ºC Type Rated output voltage Battery Capacity Weight Ambient temperature for use Rechargeable lithium ion battery DC25.2 V 63.9 Wh 890 g 0ºC to 45ºC Ambient temperature for storage -20ºC to 20ºC Type Power supply Battery charger Switching regulator AC 100 to 240 V, 50/60 Hz Power consumption 64 W Rated output voltage DC29 V, 1.75 A Weight Ambient temperature for use 333 g (power cable not included) 0ºC to 45ºC Ambient temperature for storage -20ºC to 60ºC Reference Home Page : http://www.sunstar-engineering.com : http://www.i-bike.jp E-Mail : i-bike@sunstar.com Intelligent bike MC Business HQ. Sunstar Engineering Inc. 7-1, Aketa-cho, Takatsuki, Osaka, 569-0806, Japan Sunstar Engineering Inc. PART No. S02-90011-A0 Printed in Japan Printed on recycled paper
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