Battery system and method of estimating polarization voltage of secondary battery
US-2022308117-A1 · Sep 29, 2022 · US
Vehicle control apparatus
US12187263B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12187263-B2 |
| Application number | US-202217707549-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 29, 2022 |
| Priority date | Apr 7, 2021 |
| Publication date | Jan 7, 2025 |
| Grant date | Jan 7, 2025 |
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- Title
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Abstract
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A vehicle control apparatus includes a control system. The control system includes a processor and a memory that are communicably coupled to each other, and executes a polarization eliminating mode in which polarization is eliminated by controlling an energization state of an electric power storage device while a vehicle is traveling. The control system sets a first necessary time to eliminate the polarization based on a polarization state of the electric power storage device, acquires a second necessary time to an arrival of the vehicle at a destination, permits the polarization eliminating mode to be executed while the vehicle is traveling in a case where the first necessary time is shorter than or equal to the second necessary time, and refrains from permitting the polarization eliminating mode to be executed while the vehicle is traveling in a case where the first necessary time is longer than the second necessary time.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle control apparatus comprising a control system including a processor and a memory that are communicably coupled to each other, the control system being configured to execute a polarization eliminating mode in which polarization of an electric power storage device is eliminated by controlling an energization state of the electric power storage device while a vehicle is traveling, wherein the control system is configured to set a first necessary time to eliminate the polarization on a basis of a state of the polarization of the electric power storage device, acquire a second necessary time to an arrival of the vehicle at a destination, permit the polarization eliminating mode to be executed while the vehicle is traveling in a case where the first necessary time is shorter than or equal to the second necessary time, and refrain from permitting the polarization eliminating mode to be executed while the vehicle is traveling in a case where the first necessary time is longer than the second necessary time. 2. The vehicle control apparatus according to claim 1 , wherein the polarization eliminating mode comprises a control mode in which the electric power storage device is charged or discharged. 3. The vehicle control apparatus according to claim 2 , wherein the control system is configured to permit the polarization eliminating mode to be executed while the vehicle is traveling in a case where an end of the first necessary time is included within a predetermined time prior to a time of arrival at the destination, and refrain from permitting the polarization eliminating mode to be executed while the vehicle is traveling in a case where the end of the first necessary time is not included within the predetermined time prior to the time of arrival at the destination. 4. The vehicle control apparatus according to claim 3 , further comprising an external charging system including an inlet to which an external power source is to be coupled in a detachable manner and an in-vehicle charger coupled to the electric power storage device, wherein the control system is configured to calculate a first state of charge of the electric power storage device before the electric power storage device is charged by the in-vehicle charger, calculate a second state of charge of the electric power storage device after the electric power storage device is charged by the in-vehicle charger, calculate an amount of charged electric power supplied from the in-vehicle charger to the electric power storage device in a case were the electric power storage device is charged by the in-vehicle charger, and calculate a state of health of the electric power storage device on a basis of the first state of charge, the second state of charge, and the amount of charged electric power, the state of health comprising a capacity retention rate of the electric power storage device. 5. The vehicle control apparatus according to claim 2 , further comprising an external charging system including an inlet to which an external power source is to be coupled in a detachable manner and an in-vehicle charger coupled to the electric power storage device, wherein the control system is configured to calculate a first state of charge of the electric power storage device before the electric power storage device is charged by the in-vehicle charger, calculate a second state of charge of the electric power storage device after the electric power storage device is charged by the in-vehicle charger, calculate an amount of charged electric power supplied from the in-vehicle charger to the electric power storage device in a case were the electric power storage device is charged by the in-vehicle charger, and calculate a state of health of the electric power storage device on a basis of the first state of charge, the second state of charge, and the amount of charged electric power, the state of health comprising a capacity retention rate of the electric power storage device. 6. The vehicle control apparatus according to claim 1 , wherein the polarization eliminating mode comprises a control mode in which charging and discharging of the electric power storage device are stopped. 7. The vehicle control apparatus according to claim 6 , wherein the control system is configured to permit the polarization eliminating mode to be executed while the vehicle is traveling in a case where an end of the first necessary time is included within a predetermined time prior to a time of arrival at the destination, and refrain from permitting the polarization eliminating mode to be executed while the vehicle is traveling in a case where the end of the first necessary time is not included within the predetermined time prior to the time of arrival at the destination. 8. The vehicle control apparatus according to claim 7 , further comprising an external charging system including an inlet to which an external power source is to be coupled in a detachable manner and an in-vehicle charger coupled to the electric power storage device, wherein the control system is configured to calculate a first state of charge of the electric power storage device before the electric power storage device is charged by the in-vehicle charger, calculate a second state of charge of the electric power storage device after the electric power storage device is charged by the in-vehicle charger, calculate an amount of charged electric power supplied from the in-vehicle charger to the electric power storage device in a case were the electric power storage device is charged by the in-vehicle charger, and calculate a state of health of the electric power storage device on a basis of the first state of charge, the second state of charge, and the amount of charged electric power, the state of health comprising a capacity retention rate of the electric power storage device. 9. The vehicle control apparatus according to claim 6 , further comprising an external charging system including an inlet to which an external power source is to be coupled in a detachable manner and an in-vehicle charger coupled to the electric power storage device, wherein the control system is configured to calculate a first state of charge of the electric power storage device before the electric power storage device is charged by the in-vehicle charger, calculate a second state of charge of the electric power storage device after the electric power storage device is charged by the in-vehicle charger, calculate an amount of charged electric power supplied from the in-vehicle charger to the electric power storage device in a case were the electric power storage device is charged by the in-vehicle charger, and calculate a state of health of the electric power storage device on a basis of the first state of charge, the second state of charge, and the amount of charged electric power, the state of health comprising a capacity retention rate of the electric power storage device. 10. The vehicle control apparatus according to claim 1 , wherein the control system is configured to permit the polarization eliminating mode to be executed while the vehicle is traveling in a case where an end of the first necessary time is included within a predetermined time prior to a time of arrival at the destination, and refrain from permitting the polarization eliminating mode to be executed while the vehicle is traveling in a case where the end of the first necessary time is not included within the predetermined time prior to the time of arrival at the destination. 11. The vehicle control apparatus according to claim 10 , further comprising an external charging system including an inlet to w
Assignees
Inventors
Classifications
Conductive energy transfer · CPC title
Charge state · CPC title
Age of storage means · CPC title
Parallel type · CPC title
Current · CPC title
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Frequently asked questions
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- What does patent US12187263B2 cover?
- A vehicle control apparatus includes a control system. The control system includes a processor and a memory that are communicably coupled to each other, and executes a polarization eliminating mode in which polarization is eliminated by controlling an energization state of an electric power storage device while a vehicle is traveling. The control system sets a first necessary time to eliminate …
- Who is the assignee on this patent?
- Subaru Corp
- What technology area does this patent fall under?
- Primary CPC classification B60W20/13. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).