Aston Martin gets testy over Honda battery questions in China
As Aston Martin and its engine partner Honda sat down to face reporters ahead of this weekend’s Chinese... The post Aston Martin gets testy over Honda battery questions in China appeared first on F1i.com.
<p>As Aston Martin and its engine partner Honda sat down to face reporters ahead of this weekend’s Chinese...</p> <p>The post <a href="https://f1i.com/news/560802-aston-martin-gets-testy-over-honda-battery-questions-in-china.html">Aston Martin gets testy over Honda battery questions in China</a> appeared first on <a href="https://f1i.com">F1i.com</a>.</p>
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Related Regulations
Hover over badges for quick summaries, or scroll down for full official text and simplified explanations.
Full Regulation Text
Article C5.2.9
Energy Storage State of Charge Range
Chapter: C5
In Simple Terms
The energy storage system (ES) in F1 cars must maintain a relatively narrow operating window while racing. The difference between when the battery is most charged and least charged cannot exceed 4 megajoules at any point the car is on track. This rule ensures fair competition by preventing teams from using an unrestricted battery range.
- Energy storage can fluctuate by a maximum of 4MJ between its highest and lowest charge states during racing
- This limitation applies whenever the car is on track, including practice sessions and races
- The rule prevents teams from gaining unfair advantages through unrestricted battery management strategies
- Teams must carefully calibrate their energy recovery and deployment systems to stay within this window
Official FIA Text
Difference between maximum and minimum state of charge of ES may not exceed 4MJ at any time car is on track.
Article C5.20.3
Battery Management System Requirements
Chapter: C5
In Simple Terms
Every F1 car's battery system must have a smart safety manager (BMS) that constantly watches for problems and can automatically reduce power or shut down the battery if something goes wrong. It also needs to keep all the individual battery cells balanced so they work evenly together.
- The BMS acts as a safety guardian, detecting faults and protecting the battery from unsafe operation
- If problems are detected, the system can reduce power output or completely shut down the ERS to prevent damage
- The BMS must actively balance battery cells to minimize voltage differences between them for optimal performance
- This ensures both driver safety and fair competition by preventing batteries from operating in dangerous conditions
Official FIA Text
The ES must be equipped with a BMS which: a. Must detect internal faults and must trigger power reduction delivered from/to the battery or shutdown the ERS if it considers that the ES is operating unsafely. b. Must be capable of reducing the voltage dispersion between each cell to its minimal level.
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