DETERIORATION DEGREE DETERMINING APPARATUS

• US 20120299556A1
• Filed: 06/13/2012
• Published: 11/29/2012
• Est. Priority Date: 06/18/2010
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: ISHIKAWA, Tomoyasu, Tanaka, Keiichi
• Application Number:
  US13/495,040
• Publication Number:
  US 20120299556A1
• Time in Patent Office: Days
• US Class Current: 320/162
• CPC Class Codes: B60L 1/06 using only one supply
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 50/50 using propulsion power supplied by batteries or fuel cells
• 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: B60R 16/0232 for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
• CPC Class Codes: G01R 31/392 Determining battery ageing or deterioration, e.g. state of health
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A deterioration degree determining apparatus determines a deterioration degree of a battery of a vehicle. The device includes an electric component activating part activating a non-driving series electric component of the vehicle by using electric power of the battery to determine the deterioration degree of the battery, a charge degree obtaining part which obtains a charge degree of the battery during a time period in which a charge state of the battery is increased to a designated degree by charging the battery after the battery is discharged for a designated period of time by causing the electric component activating part to activate the non-driving series electric component, the battery being charged by electric power generated by an electric generator of the vehicle; and a deterioration degree determining part determining the deterioration degree of the battery based on the charge degree obtained by the charge degree obtaining part.

Claims

1. A deterioration degree determining apparatus configured to determine a deterioration degree of a battery of a vehicle, the deterioration degree determining apparatus comprising:

an electric component activating part configured to activate a non-driving series electric component of the vehicle by using electric power of the battery in order to determine the deterioration degree of the battery;

a charge degree obtaining part configured to obtain a charge degree of the battery during a period of time in which a charge state of the battery is increased to a designated degree by charging the battery after the battery is discharged for a designated period of time by causing the electric component activating part to activate the non-driving series electric component, the battery being charged by electric power generated by an electric generator of the vehicle;

a deterioration degree determining part configured to determine the deterioration degree of the battery based on the charge degree obtained by the charge degree obtaining part; and

an electric power pathway controller configured to control electric power pathways among the battery, the electric generator, the non-driving series electric component and a driving series electric component, the electric power pathway controller being configured to shut off electric power from the electric generator to the battery and the non-driving series electric component and to supply the electric power generated by the electric generator to a driving series electric component while the battery is being discharged by supplying the electric power to the non-driving series electric component which is being activated by the electric component activating part.

2. The deterioration degree determining apparatus as claimed in claim 1, wherein the electric power pathway controller shuts off electric power from the electric generator to the non-driving series electric component while the battery is being charged by the electric power generated by the electric generator after discharging the battery by supplying the electric power from the battery to the non-driving series electric component which is activated by the electric component activating part.

3. The deterioration degree determining apparatus as claimed in claim 1,

wherein electric power supply from the electric generator to the non-driving series electric component is restricted while the battery is being charged by the electric power of the electric generator after discharging the battery by supplying the electric power from the battery to the non-driving series electric component which is activated by the electric component activating part.

4. The deterioration degree determining apparatus as claimed in claim 1, further comprising:

an idling state determining part configured to determine whether the vehicle is in an idling state or not,

wherein the electric power pathway controller supplies a part of the electric power generated by the electric generator to a driving series electric component when a determination result of the idling state determining part shifts from the idling state to a non-idling state.

5. The deterioration degree determining apparatus as claimed in claim 1, further comprising:

an idling state determining part configured to determine whether the vehicle is in an idling state or not, and

a continuation determining part configured to determine whether a stop state of the vehicle continues or not,

wherein the deterioration degree determining part determines the deterioration degree of the battery in a case where the idling state determining part determines that the vehicle is in the idling state, and the continuation determining part determines that the stop state continues.

6. The deterioration degree determining apparatus as claimed in claim 5, further comprising:

a traffic information obtaining part configured to obtain a traffic information,

wherein the continuation determining part determines whether the stop state continues or not based on the traffic information obtained by the traffic information obtaining part, and

wherein the deterioration degree determining part determines the deterioration degree of the battery in a case where the continuation determining part determines that the stop state continues based on the traffic information.

7. The deterioration degree determining apparatus as claimed in claim 1, further comprising:

a communication part configured to communicate with a remote monitoring center which monitors the deterioration degree of the battery of the vehicle,

wherein the deterioration degree determining part determines the deterioration degree of the battery when the deterioration degree determining part receives a determination command from the remote monitoring center via the communication part.

8. The deterioration degree determining apparatus as claimed in claim 7, further comprising:

a position data obtaining part configured to obtain a position data of the vehicle,

wherein the position data obtained by the position data obtaining part is send to the remote monitoring center via the communication part,

wherein the remote monitoring center determines whether the vehicle is in a traffic jam or not based on the position data when the remote monitoring center receives the position data, and sends the determination command to the vehicle which is in the traffic jam, and

wherein the deterioration degree determining part determines the deterioration degree of the battery when the deterioration degree determining part receives the determination command from the remote monitoring center via the communication part.