Shanghai Smart (SZ:001266) 工程机械杂志·2025-10-17 09:25Core Viewpoint - The article emphasizes the accelerating trend of electrification in the engineering machinery sector, highlighting the importance of integrated, efficient, and safe power systems as key breakthroughs for product upgrades [1]. Product Design Innovation - Traditional electric engineering machinery often has core modules arranged independently, leading to high maintenance costs and increased failure rates due to complex wiring and numerous interfaces. The MC-SA40 series four-in-one controller addresses these pain points by integrating the main drive motor controller, onboard charger (OBC), high-voltage to low-voltage DC/DC converter, and high-voltage power distribution unit (PDU) into a single unit, achieving a system efficiency upgrade of "1 + 3 > 4" [3][4]. Four Core Functions - The four-in-one controller's integrated modules are designed for seamless interaction, providing comprehensive support from startup to operation, charging, and safety protection [5]. - The main drive motor controller acts as the "power commander," optimizing control algorithms to match power demands across various working conditions [6]. - The onboard charger (OBC) features "smart charging" capabilities, accommodating both grid and charging station power sources, enabling quick battery recharging even in remote locations [7]. - The DC/DC module efficiently converts high-voltage battery power to low-voltage for auxiliary systems, ensuring stable operation of lighting, steering, and hydraulic systems [8]. - The PDU intelligently distributes high-voltage power to various modules and monitors electrical parameters, providing rapid disconnection in case of anomalies to protect equipment and personnel [9]. Technical Strength and Product Quality - The MC-SA40 series four-in-one controller meets the four core demands of flexibility, integration, efficiency, and safety, aiming to deliver exceptional product value to customers [11]. Customization and Efficiency - The controller supports modular options, allowing flexible configuration based on different vehicle types, which reduces overall development costs and enables precise matching for specific applications [12]. - High power density design minimizes product size, facilitating installation in compact engineering machinery, thus enhancing maneuverability in tight workspaces [13]. - The main drive system achieves a maximum efficiency of over 99%, combined with smart energy optimization algorithms, significantly improving endurance by accomplishing more tasks with less energy [14]. Safety Features - The main control chip complies with functional safety standards ISO 26262 ASIL-D, incorporating multiple levels of software and hardware fault protection, ensuring safe and controllable motor torque [15]. - Real-time temperature estimation of the IGBT core helps prevent overheating risks, while the IP67 protection level and integrated metal casing ensure resilience against dust, vibration, and water exposure [15]. Practical Application and Market Reach - The MC-SA40 series has been tested in real-world applications, such as small electric excavators, demonstrating its adaptability to compact designs and harsh working conditions [17]. - The product is widely used in electric excavators, aerial work vehicles, logistics vehicles, and passenger cars, establishing itself as a reliable solution for efficient power control [19]. - The company aims to continue innovating in electric drive system technology, providing high-quality products and solutions to empower the upgrade of electric equipment and contribute to a green and intelligent engineering machinery ecosystem [21].