# US 9,517,702 B2 · Power supply system, electrically assisted system, and electric gear shift system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,517,702 B2 - Document ID: US9517702B2 - Status: Granted - Kind: B2 - Application number: 14/720,137 - Filed: 2015-05-22 - Published: 2015-12-10 - Granted: 2016-12-13 - Earliest claimed: 2014-06-09 - Assignees: Shimano Inc. - Applicants: Shimano Inc. - Inventors: Jun Gao - Web page: https://patentgrep.com/patent/US9517702B2 ## CPC - B60L 58/12: responding to state of charge [SoC] - B60L 1/003: {to auxiliary motors, e.g. for pumps, compressors} - B60L 15/2045: {for optimising the use of energy} - B60L 50/20: using propulsion power generated by humans or animals - B60R 16/033: characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36) - B60L 2200/12: Bikes - Y02T 10/64: Electric machine technologies in electromobility - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/72: Electric energy management in electromobility - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A power supply system is basically provided for supplying electric power to an electric component of a bicycle. The power supply system includes a first battery, a second battery, an operating unit and a power supply controller. The power supply controller is configured to transition an operating state by electric power of the second battery and supply electric power from the first battery to the electric component when the operating unit is operated in a stopped state. ## Claims ### Claim 1 A power supply system for supplying electric power to an electric component of a bicycle, the power supply system comprising: a first battery; a second battery; an operating unit; and a power supply controller configured to transition an operating state by electric power of the second battery and supply electric power from the first battery to the electric component when the operating unit is operated in a stopped state. ### Claim 2 (depends on 1) The power supply system as recited in claim 1, wherein the power supply controller is configured to maintain the operating state by the electric power of the first battery after supplying the electric power from the first battery to the electric component with the electric power from the second battery. ### Claim 3 (depends on 1) The power supply system as recited in claim 1, wherein the second battery is a rechargeable battery, and the power supply system further comprises a second battery controller configured to charge the second battery with the electric power from the first battery when the electric power is supplied from the first battery to the electric component. ### Claim 4 (depends on 3) The power supply system as recited in claim 3, wherein the second battery controller is configured to stop the charging of the second battery when a battery level of the second battery becomes greater than or equal to a prescribed battery level. ### Claim 5 (depends on 1) The power supply system as recited in claim 1, wherein the operating unit comprises an operating switch, and an operation controller configured to supply electric power from the second battery to the power supply controller and output an activation signal to the power supply controller when the operating switch is being operated. ### Claim 6 (depends on 5) The power supply system as recited in claim 5, wherein the power supply controller is configured to supply the electric power from the first battery to the electric component when the activation signal has been received. ### Claim 7 (depends on 5) The power supply system as recited in claim 5, wherein the operating unit and the power supply controller both comprise a power line communication unit that conducts power line communication. ### Claim 8 (depends on 1) The power supply system as recited in claim 1, further comprising a battery case housing the first battery, the power supply controller being disposed outside of the battery case. ### Claim 9 (depends on 8) The power supply system as recited in claim 8, further comprising a first battery controller disposed inside of the battery case, the power supply controller being configured to communicate with the first battery controller and cause the first battery controller to supply the electric power from the first battery to the electric component. ### Claim 10 (depends on 1) The power supply system as recited in claim 1, wherein the power supply controller is configured to stop supplying the electric power from the first battery to the electric component and transition to the stopped state when the operating unit is controlled when in the operating state. ### Claim 11 (depends on 1) The power supply system as recited in claim 1, further comprising an operation case housing at least a part of the operating unit and the second battery. ### Claim 12 (depends on 11) The power supply system as recited in claim 11, wherein the operation case comprises an attaching portion that configured to be attached to a handlebar of the bicycle. ### Claim 13 (depends on 1) An electrically assisted system including the power supply system as recited in claim 1, and further comprising: a motor that assists the manual drive force as the electric component. ### Claim 14 (depends on 1) An electric gear shift system including the power supply system as recited in claim 1, and further comprising: an electric transmission as the electric component.