Abnormal combustion in spark-ignition engines appears in three distinct forms: detonation (knock), pre‑ignition, and low‑speed pre‑ignition (LSPI). They differ in when ignition occurs, how pressure rises, and the resulting damage risk. Modern controls—knock sensors, ion‑sensing at the spark plug, and closed‑loop spark/boost—manage each with tailored strategies. Understanding the mechanisms and the sensing windows is critical, because knock is often manageable and even allowed at low levels, while pre‑ignition and LSPI are stochastic and potentially catastrophic, demanding rapid detection and torque reduction rather than the gentle spark trimming used for ordinary knock.
A series of significant battery technology improvements are reshaping the mobile device landscape this month, with major manufacturers unveiling new power solutions that promise extended usage times and enhanced efficiency. These developments represent a notable step forward in addressing one of the most persistent challenges in portable electronics - battery life.
A promising advancement in renewable energy technology has emerged with the latest innovation in battery storage: the CO₂ Battery. This novel approach aims to solve one of the most pressing challenges in the global transition to renewable energy—reliable, efficient, and scalable energy storage for the grid. Developed specifically for large-scale deployment, the CO₂ Battery stands out for its cost-effectiveness, sustainability, and performance, potentially marking a turning point in the way renewable energy is managed and delivered to consumers [1].
BMW has rolled out its first electric vehicles equipped with all-solid-state batteries, heralding a potential game-changer in electric vehicle technology. Dubbed as the 'holy grail' of EV battery tech, these batteries promise to revolutionize the market by offering enhanced safety, longer lifespan, and better performance. BMW's latest tests put this innovative technology on the road, signaling new horizons for the electric vehicle industry as solid-state batteries might soon become a staple in EV manufacturing [4].
