为何要求百公里加速不小于5秒，影响哪些车？五问机动车新国标

Core Viewpoint - The new national standard for automotive safety, particularly for electric and hybrid vehicles, aims to address acceleration control issues by mandating a default acceleration time of no less than 5 seconds for passenger cars, thereby enhancing safety and reducing the risk of loss of control during operation [1][2][8]. Group 1: New Regulations - The draft standard proposes that passenger vehicles should have a default state where the acceleration time to 100 km/h is no less than 5 seconds after each ignition [1][2]. - Electric and plug-in hybrid vehicles must include a pedal misapplication suppression feature to detect and limit power output during stationary or crawling conditions [1][2]. - The design of car door handles is also addressed, requiring mechanical release functionality to ensure doors can be opened without tools in emergencies [1]. Group 2: Rationale Behind the Regulations - The requirement for a minimum acceleration time of 5 seconds is based on the observation that many drivers, especially inexperienced ones, may struggle with high acceleration modes, leading to accidents [2][8]. - The standard aims to ensure that vehicles start with a lower acceleration performance, making it easier for new drivers to adapt and reducing the likelihood of accidents due to misoperation [8]. Group 3: Current Market Situation - In the current market, most fuel vehicles in the 100,000 to 200,000 yuan price range have acceleration times between 7 to 10 seconds, while high-performance models can achieve significantly lower times [3][4]. - Many electric vehicles, such as the Tesla Model S and others, boast acceleration times under 4 seconds, indicating a shift in performance expectations [4][5]. Group 4: Impact on Manufacturers - The new regulations primarily affect high-performance four-wheel drive vehicles, while most two-wheel drive models are unlikely to require significant adjustments [9][10]. - Manufacturers can meet the new standards through software adjustments, such as modifying default power output and pedal response logic, rather than extensive hardware changes [9][10]. Group 5: Regulatory Context - The recent regulatory measures reflect a broader trend of increasing oversight in the electric vehicle market, aiming to ensure safety and quality as technology evolves [11][12]. - The new regulations are seen as a necessary step towards high-quality development in the automotive industry, promoting safety and user experience while addressing the rapid technological advancements in electric vehicles [12].