Electric storage apparatus

• US 10,336,196 B2
• Filed: 05/23/2017
• Issued: 07/02/2019
• Est. Priority Date: 10/11/2012
• Status: Active Grant

• Current Assignee: GS Yuasa International Ltd. (GS Yuasa Corporation)
• Original Assignee: GS Yuasa International Ltd. (GS Yuasa Corporation)
• Inventors: Nakamoto, Takeshi, Shiraishi, Takeyuki
• Primary Examiner(s): Jackson, Stephen W
• Application Number:
  US15/602,719
• Publication Number:
  US 20170253128A1
• Time in Patent Office: 770 Days
• Field of Search: None
• CPC Class Codes: B60L 50/10 using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 58/13 Maintaining the SoC within a determined range
• CPC Class Codes: B60L 58/15 Preventing overcharging
• CPC Class Codes: G01R 31/005 Testing of electric installations on transport means
• CPC Class Codes: G01R 31/374 with means for correcting the measurement for temperature or ageing
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: G01R 31/3842 combining voltage and current measurements
• CPC Class Codes: H01H 47/22 for supplying energising current for relay coil
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/42 Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells H01M10/60 takes precedence
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 4/5825 Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
• CPC Class Codes: H01M 4/587 for inserting or intercalating light metals
• CPC Class Codes: H02J 2207/10 Control circuit supply, e.g. means for supplying power to the control circuit
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0016 using shunting, discharge or bypass circuits
• CPC Class Codes: H02J 7/00302 : Overcharge protection
• CPC Class Codes: H02J 7/0048 : Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/14 : for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
• CPC Class Codes: H02J 9/005 : using a power saving mode for copiers G03G15/5004
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles

Abstract

A power control method of an electric storage apparatus that includes an output terminal, an electric storage device connected to the output terminal via a power supply route in the electric storage apparatus, and a monitoring apparatus including a detector, a communication unit, and a controller, includes detecting a variation value corresponding to an amount of charge of the electric storage device, shutting down the power supply route in the electric storage apparatus, which connects the electric storage device to the output terminal, and causing the communication unit to receives an input signal from outside.

Claims

1. A power control method of an electric storage apparatus that includes an output terminal, an electric storage device connected to the output terminal via a power supply route in the electric storage apparatus, and a monitoring apparatus including a detector, a communication unit, and a controller, the method comprising:

detecting a variation value corresponding to an amount of charge of the electric storage device;

shutting down the power supply route in the electric storage apparatus, which connects the electric storage device to the output terminal; and

causing the communication unit to receives an input signal from outside.

2. The power control method according to claim 1, further comprising:

executing a return process to switch on the power supply route in the electric storage apparatus if the communication unit receives a return instruction based on the input signal.

3. The power control method according to claim 2, wherein the communication unit is configured to receive the return instruction based on a remote transmission from a remote control switch.

4. The power control method according to claim 2, wherein the communication unit is configured to receive the return instruction based on an ignition-on signal.

5. The power control method according to claim 2, further comprising:

switching a power consumption mode between a first power consumption mode, in which the monitoring apparatus monitors the electric storage device, and a second power consumption mode, in which the monitoring apparatus consumes less power supplied from the electric storage device than in the first power consumption mode.

6. The power control method according to claim 5, further comprising:

executing a power saving to switch the power consumption mode of the monitoring apparatus from the first power consumption mode to the second consumption mode based on a comparison of the variation value to a power threshold.

7. The power control method according to claim 6, further comprising:

switching the power consumption mode of the monitoring apparatus from the second power consumption mode back to the first power consumption mode if the communication unit receives the return instruction.