汽车前沿技术 | 森萨塔科技推出制动压力传感器

据报道，森萨塔科技（Sensata Technologies）宣布，其制动力传感器现已应用于多款主流电动汽车的?电子机械制动（EMB）系统中。这一里程碑事件标志着汽车行业正从传统的液压制动向全电动“线控制动”系统转型；随着汽车主机厂（OEM）日益广泛地采用专为电气化、自动驾驶及软件定义控制而设计的车辆架构，这一转型显得尤为重要。
电子机械制动系统实现了从液压驱动向电动驱动的转变，该系统需要对制动力进行精确且持续的测量，以确保车辆的安全性、舒适性和性能表现。森萨塔科技的制动力传感器旨在提供这一关键数据输入——通过直接测量制动卡钳内的夹紧力，实现对每个车轮的闭环控制。
与依赖压力控制的传统液压及电液制动系统不同，EMB 系统依靠精确的夹紧力测量，来区分缓减速和紧急制动等不同的制动工况。更高的测量精度，使得车辆在各种行驶条件下都能实现更平稳、更安全且响应更迅速的制动表现。
森萨塔的制动压力传感器可直接集成于制动卡钳内，实时测量夹紧力，并以高频率将数据传输至控制单元。这种持续的反馈机制，使每个车轮都能作为一个独立的、智能控制的系统进行运作。该传感器基于森萨塔的微型应变计（Micro Strain Gauge，MSG）技术——该技术在安全关键型制动应用中已得到超过 25 年的验证——并以创新的方式将其应用于直接测量作用力，而非液压压力。
森萨塔制动力传感器的主要优势包括：

• 精确的 EMB 控制：直接测量制动卡钳内部的夹紧力，为实现精确的电子机械制动控制提供所需的实时输入信号。
• 提升制动性能：提供高精度的力反馈，确保在各种驾驶工况下都能实现灵敏的制动响应、一致的制动表现以及良好的操控性。
• 简化系统集成：可直接连接至卡钳控制单元，无需额外连接器，有助于降低系统复杂性。
• 紧凑轻量化设计：便于集成至 EMB 架构中，且不会在车轮端增加不必要的尺寸或重量。
• 支持功能安全：提供卡钳级的力反馈，满足汽车功能安全方面的最高要求。

这种方案使 OEM 能够优化每个车轮的制动性能，从而提升车辆的动态表现、一致性及安全性。此外，EMB 架构还省去了制动管路和液压系统等液压组件，简化了车辆设计，降低了制造复杂度和维护需求。
森萨塔科技执行副总裁兼汽车事业部总裁 Markus Schwabe 表示：“?电子机械制动代表了车辆架构的一次根本性变革，它对传感和控制的精度提出了更高要求。我们的制动力传感技术能够帮助整车厂实现对每个车轮制动力的精确、实时控制，从而满足下一代电动汽车在性能、舒适性和安全性方面的需求。”
Sensata Technologies (NYSE: ST),announced its brake force sensors are now enabling electromechanical braking (EMB) systems in leading electric vehicles. This milestone marks a significant step in the transition from traditional hydraulic braking to fully electric, brake-by-wire systems, as vehicle OEMs increasingly adopt architectures designed for electrification, autonomy, and software-defined control.
Electromechanical brakes represent a shift from hydraulic to electric actuation, requiring precise and continuous measurement of brake force to maintain safety, comfort, and performance. Sensata’s brake force sensors are designed to provide that critical input, directly measuring clamping force within the brake caliper and enabling closed-loop control at each wheel.
Unlike conventional hydraulic and electro-hydraulic brake systems, which rely on pressure-based control, EMB systems depend on an accurate clamping force measurement to distinguish between braking scenarios such as gentle deceleration and emergency stops. Higher accuracy enables smoother, safer, and more responsive braking behavior across all driving conditions.
Sensata’s Brake Force sensor integrates directly into the caliper, measuring clamping force in real time and transmitting data to the control unit at high frequency. This continuous feedback allows each wheel to operate as an independent, intelligently controlled system. The sensor builds on Sensata’s Micro Strain Gauge (MSG) technology, proven in safety-critical braking applications for more than 25 years, and applies it in a new way to measure force directly rather than hydraulic pressure.
Key benefits of Sensata’s Brake Force sensor include:

• Precise EMB Control: Directly measures clamping force within the brake caliper, providing the real-time input required for precise electromechanical brake control.
• Improved Braking Performance: Delivers high-accuracy force feedback to support responsive braking, consistency, and control across a wide range of driving conditions.
• Simplified System Integration: Connects directly to the caliper control unit without additional connectors, helping reduce system complexity.
• Compact, Lightweight Design: Supports integration into EMB architectures without adding unnecessary size or weight at the wheel end.
• Functional Safety Support: Provides caliper-level force feedback to support the highest automotive functional safety requirements.

This approach enables OEMs to optimize braking performance at each wheel, improving vehicle dynamics, consistency, and safety. EMB architectures also simplify vehicle design by eliminating hydraulic components such as brake lines and fluid systems, reducing manufacturing complexity and maintenance requirements.
“Electromechanical braking represents a fundamental shift in vehicle architecture, requiring a new level of precision in sensing and control,” said Markus Schwabe, Executive Vice President and President, Automotive, Sensata Technologies. “Our brake force sensing technology enables OEMs to achieve accurate, real-time control of braking force at each wheel, supporting the performance, comfort and safety requirements of next-generation EVs.”
作者：Sensata
来源：https://investors.sensata.com