The chassis domain is related to vehicle motion and consists of the drivetrain, running gear, steering system and braking system. As vehicles become increasingly intelligent, among the three core systems of intelligent vehicles — perception and recognition, decision and planning, and control and execution — the one closest to the automotive components industry is the control and execution side, namely drive control, steering control and braking control. This requires converting the chassis of conventional vehicles to x-by-wire for autonomous driving. An x-by-wire chassis mainly comprises five systems: steer-by-wire, brake-by-wire, shift-by-wire, throttle-by-wire and suspension-by-wire, among which steer-by-wire and brake-by-wire are the most core products for the autonomous driving execution side.

To meet the higher intelligence requirements of future L3 and L4 autonomous driving, the industry has further integrated the original iBooster + ESP solution to form the IPB intelligent integrated brake system. Through high integration and complete decoupling, the IPB system unifies energy recovery, high-level intelligent driving and precise control. Innovation in IPB control software is becoming the key to product differentiation for major automakers. To better develop and verify IPB control software and achieve industrialization, Huahai Technology has launched the RapidECU-S5IPB intelligent integrated brake control unit product-level rapid prototyping platform, which helps automakers and system integrators master the core IP of brake-by-wire related proprietary software, carry out innovative software R&D and verification in advance, and achieve seamless connection to mass industrialization based on the product-level prototype platform.

As vehicle architecture evolves deeply toward centralized and zonal orientation, L4 and higher-level autonomous driving imposes stringent requirements on actuators for fast response, minimalist architecture and precise pressure control. As the high ground of next-generation braking technology, EMB (electromechanical brake system) completely eliminates hydraulic lines and brake fluid, achieving pure x-by-wire through motor direct-drive calipers and attaining the ultimate decoupling of “four-wheel independence and millisecond-level response”. Innovation in EMB control software — especially clamping-force closed-loop control and redundancy strategies — has become the core for automakers to define differentiated intelligent driving experiences. To help automakers and system integrators master this core IP and bridge the gap from algorithm verification to product deployment, Huahai Technology has launched the RapidECU-B1 pure brake-by-wire control unit product-level rapid prototyping platform, supporting forward-looking proprietary software R&D and seamless connection to mass production.