五问机动车新国标：为何要求百公里加速不小于5秒，影响哪些车？

Core Viewpoint - The new national standard for automotive safety, particularly for electric and hybrid vehicles, aims to address issues related to rapid acceleration and loss of control by implementing stricter technical requirements for manufacturers [4][7][21]. Group 1: New Technical Requirements - The draft standard proposes that passenger vehicles must default to a mode where the time to accelerate from 0 to 100 km/h is no less than 5 seconds after each ignition [4][8]. - Electric and plug-in hybrid vehicles are required to have a pedal misapplication suppression feature that detects and limits power output during stationary or low-speed conditions, providing clear signals to the driver [4][5]. Group 2: Rationale Behind the 5-Second Requirement - The requirement for a minimum 5-second acceleration time is based on the observation that many drivers, especially inexperienced ones, struggle with high acceleration modes, leading to accidents [7][16]. - This standard is designed to ensure that vehicles start with lower acceleration performance, allowing drivers to adapt better and reduce the risk of loss of control due to sudden power output [16][21]. Group 3: Impact on Current Vehicles - Most current two-wheel drive electric vehicles typically have acceleration times exceeding 5 seconds, meaning the new standard will not significantly impact them [17]. - The primary effect will be on high-performance four-wheel drive vehicles, which may need software adjustments to comply with the new acceleration requirements [18]. Group 4: Regulatory Context - The new regulations are part of a broader effort to enhance safety standards in the rapidly evolving electric vehicle market, addressing gaps in existing regulations [19][20]. - The regulations aim to balance technological advancements with safety, ensuring that manufacturers prioritize user experience and safety alongside performance [21].