BATTERY MANAGEMENT APPARATUS

• US 20120049786A1
• Filed: 07/28/2011
• Published: 03/01/2012
• Est. Priority Date: 08/27/2010
• Status: Abandoned Application

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: KURIMOTO, Masayuki
• Application Number:
  US13/192,649
• Publication Number:
  US 20120049786A1
• Time in Patent Office: Days
• US Class Current: 320/106
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/72 Charging station selection relying on external data
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 2260/52 drive range estimation, e.g. of estimation of available travel distance
• CPC Class Codes: B60L 2260/54 Energy consumption estimation
• CPC Class Codes: B60L 2270/32 of electricity
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: H01M 10/4221 with battery type recognition
• CPC Class Codes: H01M 10/4285 Testing apparatus
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• 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 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• 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 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A vehicle carries a battery package as its power source. Plural battery modules in the battery package respectively have a memory device for memorizing identification information that proves authenticity of each of the battery modules. A battery control unit in the vehicle has an authentication unit. The authentication unit determines whether or not each of the battery modules is a compliant battery. When the battery module is determined as non-compliant, a control unit restricts a travel of the vehicle. Under a restricted condition of traveling, damage of the vehicle as well as deterioration of vehicle'"'"'s reliability due to use of the non-compliant battery are prevented.

Claims

1. A battery management apparatus comprising:

a battery-checker that determines if a battery in a battery-driven device is compliant or non-compliant;

a control unit that controls a functional index of the battery-driven device to a normal output when the battery is compliant; and

a restriction unit that controls the functional index of the battery-driven device to a restricted output when the battery is non-compliant, wherein the restricted output is different from the normal output, and the restricted output restricts the use of the battery-driven device when compared to the normal output by the control unit.

2. The battery management apparatus of claim 1, wherein:

the functional index of the battery-driven device includes an operation period and a capacity; and

the restriction unit restricts the operation period or the capacity or both the operation period and the capacity to control the battery-driven device to the restricted output.

3. The battery management apparatus of claim 2, wherein:

the restriction unit shortens the operation period of the battery-driven device when the battery is non-compliant, the operation period is shorter than an operation period set by the control unit.

4. The battery management apparatus of claim 3 where the restriction unit further includes:

a permission section that permits a battery operation of the battery-driven device until the battery-driven device exceeds the restriction output; and

a prohibition section that prohibits the battery operation of the battery-driven device when the battery-driven device exceeds the restriction output.

5. The battery management apparatus of claim 2, wherein

the restriction unit lowers the capacity of the battery-driven device when the battery is non-compliant, the capacity is lower than a capacity set by the control unit for the normal output.

6. The battery management apparatus of claim 1 wherein the restriction unit further includes:

a detection section that detects a battery condition; and

a configuration section that determines the restricted output based on the battery condition detected by the detection section.

7. The battery management apparatus of claim 1 further includes:

a compliant battery charge unit that charges the battery when the battery is compliant; and

a non-compliant battery charge unit that charges the battery that is non-compliant under a restricted charge condition that is stricter than a charge condition of the compliant battery charge unit.