理想自动驾驶芯片
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理想CTO谢炎在云栖大会分享理想自动驾驶芯片设计思路
理想TOP2· 2025-09-27 08:58
Core Viewpoint - The article discusses the evolution of intelligent driving algorithms and the importance of data flow architecture in the context of autonomous driving technology, emphasizing the need for advanced computational architectures to handle increasing demands for processing power and reasoning capabilities. Group 1: Evolution of Intelligent Driving Algorithms - The evolution of autonomous driving algorithms can be divided into three phases: the initial phase relied on rule-based algorithms, the second phase shifted towards end-to-end (E2E) learning, and the current phase is focusing on integrating visual language models (VLM) with reinforcement learning (RL) to enhance decision-making capabilities [4][5][6]. Group 2: Importance of Language Models - Language models are deemed essential for achieving long reasoning capabilities in autonomous driving, as they enable the system to generalize and handle corner cases that cannot be addressed solely through data collection or world models [7][8]. - The psychological aspect of having a driving model that aligns with human values and reasoning is highlighted, suggesting that language models can help instill a human-like worldview in autonomous systems [8][9]. Group 3: Computational Architecture - The article critiques the traditional von Neumann architecture, which prioritizes computation over data, and proposes a shift towards data-driven computation to better handle the complexities of AI processing [12][13]. - The company has developed a unique NPU architecture that focuses on data flow rather than traditional SOC designs, aiming to improve efficiency and performance in AI inference tasks [17][18]. Group 4: Performance Metrics - The performance of the company's NPU architecture is reported to be significantly higher than existing solutions, achieving up to 4.4 times the performance in CNN tasks and 2 to 3 times in LlaMA2 7B tasks, while maintaining similar transistor counts [2][18].
理想自动驾驶芯片最核心的是数据流架构与软硬件协同设计
理想TOP2· 2025-09-05 04:56
Core Viewpoint - The article discusses the advancements in Li Auto's self-developed chip architecture, particularly focusing on the VLA architecture and its implications for autonomous driving capabilities [1][2]. Group 1: Chip Development and Architecture - Li Auto's self-developed chip is designed with a data flow architecture that emphasizes hardware-software co-design, making it suitable for running large neural networks efficiently [5][9]. - The chip is expected to achieve 2x performance compared to leading chips when running large language models like GPT and 3x for vision models like CNN [5][8]. - The development timeline from project initiation to vehicle deployment is approximately three years, indicating a rapid pace compared to similar projects [5][8]. Group 2: Challenges and Innovations - Achieving real-time inference on the vehicle's chip is a significant challenge, with efforts focused on optimizing performance through various engineering techniques [3][4]. - Li Auto is implementing innovative parallel decoding methods to enhance the efficiency of action token inference, which is crucial for autonomous driving [4]. - The integration of CPU, GPU, and NPU in the Thor chip aims to improve versatility and performance in processing large amounts of data, which is essential for autonomous driving applications [3][6]. Group 3: Future Outlook - The company expresses strong confidence in its innovative architecture and full-stack development capabilities, which are expected to become key differentiators in the future [7][10]. - The relationship between increased computing power and improved performance in advanced driver-assistance systems (ADAS) is highlighted, suggesting a predictable enhancement in capabilities as technology evolves [6][9].