VEHICLE BATTERY DIAGNOSIS SYSTEM, AND VEHICLE

• US 20110208382A1
• Filed: 10/22/2009
• Published: 08/25/2011
• Est. Priority Date: 11/13/2008
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Uchida, Masatoshi
• Granted Patent: US 8,594,871 B2
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60K 6/445 Differential gearing distribution type
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 15/2009 for braking
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/34 Cabin temperature
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60L 58/16 responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
• CPC Class Codes: B60L 58/24 for controlling the temperature of batteries
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: B60L 7/14 for vehicles propelled by ac motors
• CPC Class Codes: B60W 2050/146 Display means
• CPC Class Codes: B60W 2510/244 : Charge state
• CPC Class Codes: B60W 2510/246 : Temperature
• CPC Class Codes: B60W 2510/248 : Age of storage means
• CPC Class Codes: B60W 50/04 : Monitoring the functioning of the control system
• CPC Class Codes: G07C 5/085 : using electronic data carriers
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• 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

Abstract

A vehicle battery diagnosis system diagnoses the state of use of a battery of a vehicle, and includes: an information accumulation portion that accumulates diagnostic information that includes a use condition regarding the battery; a control plan presentation portion that presents a plurality of control plans about the vehicle for increasing the service life of the battery on the basis of the diagnostic information; and an information changing portion that changes control information regarding the control of the vehicle which is retained in a vehicle-mounted ECU of the vehicle so that the control information corresponds to a control plan selected from the plurality of control plans.

Claims

1. A vehicle battery diagnosis system that diagnoses state of use of a rechargeable battery of a vehicle equipped with the battery as a motive power source, comprising:

an information accumulation portion that accumulates diagnostic information that includes a use condition regarding the battery;

a control plan presentation portion that presents a plurality of control plans about the vehicle for increasing service life of the battery based on the diagnostic information;

a display portion that displays, to an operator, the plurality of control plans presented by the control plan presentation portion; and

an information changing portion that changes control information regarding a control of the vehicle which is retained in the vehicle so that the control information corresponds to a control plan selected, by the operator, from the plurality of control plans.

2. The vehicle battery diagnosis system according to claim 1, wherein:

the vehicle includes a rotary electric machine that drives a wheel;

the rotary electric machine generates regenerative electric power when braking the vehicle; and

the control information includes a control parameter that is changeable, and that defines an upper limit of electric power that is acceptable by the battery.

3. The vehicle battery diagnosis system according to claim 1, wherein:

the vehicle includes a rotary electric machine that drives a wheel; and

the control information includes a control parameter that is changeable, and that defines an upper limit of electric power that is outputable from the battery.

4. The vehicle battery diagnosis system according to claim 1, wherein:

the vehicle includes a temperature adjustment device that uses electric power from the battery, and that adjusts temperature of a housing space of the battery; and

the control information includes a control parameter that is changeable, and that defines a target value for the temperature adjustment device.

5. The vehicle battery diagnosis system according to claim 1, wherein:

the vehicle includes an internal combustion engine, a generator that generates electric power when receiving motive power from the internal combustion engine, and a control portion that performs a control of charging the battery with electric power generated by the generator; and

the control information includes a control parameter that is changeable, and that defines a target value of state of charge of the battery.

6. The vehicle battery diagnosis system according to claim 1, wherein

the control plan presentation portion changes a control plan that is presented according to an attribute of the operator of the vehicle battery diagnosis system.

7. The vehicle battery diagnosis system according to claim 6, wherein

the control plan presentation portion has as the attribute of the operator a user, a dealer, and a manufacturer.

8. The vehicle battery diagnosis system according to claim 1, wherein

the vehicle has as the control information at least one of acceleration of the vehicle, temperature of the battery, state of charge of the battery, and duration of stop of the vehicle.

9. (canceled)

10. A method of diagnosing state of use of a rechargeable battery of a vehicle equipped with the battery as a motive power source, comprising:

detecting diagnostic information that includes a use condition regarding the battery;

presenting a plurality of control plans about the vehicle for increasing service life of the battery based on the diagnostic information detected;

displaying to an operator the plurality of presented control plans;

selecting one of the plurality of control plans; and

changing control information regarding a control of the vehicle which is retained in the vehicle so that the control information corresponds to the control plan selected by the operator.