18539633. BATTERY SYSTEM simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
BATTERY SYSTEM
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Masatsugu Kawakami of Sunto-gun (JP)
Yasumasa Oguma of Sunto-gun (JP)
BATTERY SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18539633 titled 'BATTERY SYSTEM
Simplified Explanation
The patent application describes a battery system that prevents over-discharge using a simple sensor element. Here is a simplified explanation of the innovation:
- Battery system with sensor element to prevent over-discharge
- Battery pack with multiple cells connected in series
- Monitoring unit to track battery pack condition
- Control unit to manage battery pack discharge
- Calculates battery pack capacity at first discharge cutoff voltage
- Estimates capacity based on current and temperature
- Detects over-discharge based on capacity conditions
- Adjusts cutoff voltage to prevent over-discharge
- Potential Applications
The technology can be applied in electric vehicles, portable electronics, and renewable energy storage systems.
- Problems Solved
Prevents over-discharge of batteries, which can lead to reduced battery life, performance issues, and safety hazards.
- Benefits
Prolongs battery life, enhances performance, improves safety, and reduces maintenance costs.
- Potential Commercial Applications
The technology can be utilized by battery manufacturers, electric vehicle companies, consumer electronics manufacturers, and energy storage providers.
- Possible Prior Art
Prior art may include battery management systems with over-discharge protection features, sensor-based battery monitoring systems, and smart battery chargers.
- Unanswered Questions
- How does the sensor element detect the over-discharge condition accurately?
The sensor element likely measures key parameters such as voltage, current, and temperature to determine the battery pack's state and prevent over-discharge.
- What impact does adjusting the discharge cutoff voltage have on the overall battery performance?
Adjusting the discharge cutoff voltage to prevent over-discharge may impact the battery's usable capacity and overall efficiency. Further research may be needed to optimize this feature for different applications.
Original Abstract Submitted
A battery system that avoids an over discharge with a simple sensor element is provided. The battery system comprises: a battery pack including a plurality of battery cells connected in series, a monitoring unit that monitors a condition of the battery pack, and a control unit that controls a discharge of the battery pack. The control unit calculates capacity condition A of the battery pack at a first discharge cutoff voltage based on the total voltage and the total current, estimates capacity condition B of the battery pack at the first discharge cutoff voltage based on the total current and the temperature, determines an occurrence of an over discharge based on the capacity condition A and the capacity condition B, changes the first discharge cutoff voltage to a second discharge cutoff voltage that is higher than the first discharge cutoff voltage, when the occurrence of the over discharge is determined.
