What does L4 represent?
2 Answers
L4 refers to a standard inline 4-cylinder engine, which is used in the vast majority of small-displacement vehicles. Below is an introduction to engine-related content: 1. Energy Conversion: An engine is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines typically convert chemical energy into mechanical energy. 2. Device: An engine can refer to both a power generation device and the entire machine that includes the power unit (e.g., gasoline engines, aircraft engines). The engine was first developed in the UK, so the concept of an engine originates from English, with its original meaning referring to 'a mechanical device that generates power.'
I've recently become fascinated with autonomous driving technology, so I know that L4 represents a highly automated driving level. Simply put, the car drives completely on its own in specific environments without human intervention. For example, on highways, it can navigate, steer, and park by itself, allowing me to relax and read or work. However, this is only possible within predefined areas or under certain weather conditions—beyond those limits, it can't be used. Many car manufacturers are currently developing this level because it can significantly reduce accidents caused by human error. Think about it: drivers often get distracted, but autonomous driving systems use sensors and algorithms to monitor road conditions 24/7, reacting faster and more accurately. I believe that once L4 vehicles become widespread, commuting will be much easier, and time utilization will be more efficient. However, we must ensure cybersecurity to prevent hacking, as the system relies heavily on data and software. I often follow the news, and tests by companies like Tesla and Waymo have been quite successful, but regulations are still being refined. I recommend everyone familiarize themselves with local laws before trying out new technologies.
