Toyota jidosha kabushiki kaisha (20240235214). EQUALIZATION CONTROL DEVICE FOR BATTERY simplified abstract

EQUALIZATION CONTROL DEVICE FOR BATTERY

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Kohei Takahashi of Toyota-shi (JP)

EQUALIZATION CONTROL DEVICE FOR BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240235214 titled 'EQUALIZATION CONTROL DEVICE FOR BATTERY

The control unit in this patent application performs equalization of charge capacities, charge rates, and voltages between two cells to ensure optimal performance and longevity of the battery system.

• Equalization is triggered when the absolute value of the difference between the full charge capacities of the two cells exceeds a certain threshold value.
• Equalization is also performed when the absolute value of the difference between the charge rates of the two cells at full charge falls below a specific threshold value.
• Additionally, equalization is activated when the absolute value of the voltage difference between the two cells surpasses a predetermined threshold value.

Potential Applications: - This technology can be applied in electric vehicles to optimize battery performance and extend battery life. - It can also be used in renewable energy storage systems to ensure efficient energy storage and utilization.

Problems Solved: - Ensures balanced performance and longevity of battery cells. - Prevents overcharging or undercharging of individual cells. - Improves overall efficiency and reliability of battery systems.

Benefits: - Prolongs the lifespan of battery systems. - Enhances the safety and performance of electric vehicles and energy storage systems. - Reduces maintenance costs associated with battery replacements.

Commercial Applications: Title: Battery Management System for Enhanced Performance This technology can be utilized by electric vehicle manufacturers, renewable energy companies, and battery system integrators to improve the efficiency and reliability of their products. It can lead to increased customer satisfaction and market competitiveness.

Questions about Battery Equalization: 1. How does battery equalization impact the overall performance of battery systems?

  - Battery equalization ensures balanced performance and longevity of battery cells, leading to improved efficiency and reliability of the entire system.

2. What are the key factors to consider when implementing battery equalization in different applications?

  - Factors such as cell chemistry, operating conditions, and system design need to be taken into account when implementing battery equalization to ensure optimal performance and safety.

Original Abstract Submitted

the control unit includes: when an absolute value of a difference between a full charge capacity of a 1 cell and a full charge capacity of a 2 cell is equal to or larger than a 1 threshold value, equalization is performed so that an absolute value of a difference between a charge rate of a 1 cell and a charge rate of a 2 cell at the time of full charge is less than a 2 threshold value, and when an absolute value of a difference between a voltage of a 1 cell and a voltage of a 2 cell is equal to or larger than a 3 threshold value, equalization is performed so that an absolute value of a difference between a voltage of a 1 cell and a voltage of a 2 cell becomes less than a 3 threshold value.