From Technology Development to Large-Scale Delivery: How Hirain’s Steer‑By‑Wire Secured the “Trust Vote” of Mainstream Automakers

Release time:

2026-03-24 13:30

As automotive intelligence advances into deeper waters, steer‑by‑wire is shifting from a “technological vision” to a “production imperative.” On July 1, 2026, the mandatory national standard Basic Requirements for Automotive Steering Systems (GB 17675-2025) will take effect, defining clear safety boundaries and technical specifications for steer‑by‑wire systems. With the regulatory countdown already underway, conventional steering solutions face mounting pressure to evolve, while the risks of new architectures remain uncertain—an urgent challenge for every automaker.

Amid this industry transformation, driven by both regulation and technology, Hirain has delivered a solid answer after five years of R&D: its products cover 12V and 48V platforms, support a maximum rack force of 18 kN, offer a variable transmission ratio from 150° to 500°, and have already secured mass production orders from multiple mainstream automakers, with large scale deliveries expected by the end of 2026.

The implementation of the regulation puts safety in the spotlight. With the elimination of the mechanical connection, how to keep the vehicle controllable under extreme failure conditions has become a core question for any automaker selecting a steer by wire solution. Hirain adopts a triple redundant safety architecture—both the road feel simulator and the steering actuator are equipped with a master slave control scheme and six phase motors, while the controller, communication bus, and power supply are all backed up by multiple redundancies, achieving the highest functional safety level, ASIL D.

But safety relies not only on design—it must be validated. Benchmarking against three major standards: the European DIN 70065, the U.S. NHTSA requirements, and the Chinese GB 17675, Hirain’s steer by wire system not only enabled customers to obtain authoritative third party functional safety certification, but also helped them become the first self developed system to pass the GB 17675 2025 regulatory test at CATARC (Tianjin) . In joint efforts with customers, we repeatedly verified failure boundaries and vehicle controllability through real vehicle fault injection tests under extreme driving scenarios—such as circular roads, figure eight courses, and serpentine paths. The conclusion remained consistent: even in the most extreme failure scenarios, Hirain ensures that the “vehicle remains controllable and safety stays online.” This allows automakers to avoid having to re validate the safety baseline—saving not only months of development time but also immeasurable trial and error risk.

Beyond safety, driving experience is where differentiation is built. Hirain’s steer‑by‑wire helps automakers create perceptible brand value in three dimensions:

Variable transmission ratio, making “great to drive” a tangible brand attribute. When parking, the steering wheel requires only one full turn, making it easy for novice drivers to maneuver into tight spaces; at highway speeds, the steering effort automatically increases, making the vehicle feel stable and planted. This enables your users to experience with every parking maneuver and every lane change just how good the vehicle feels to drive—a form of word of mouth that is far more persuasive than any advertisement.

Active front steering, upgrading safety from “passive correction” to “active prevention.” Traditional ESP intervenes only after a vehicle has lost control, using braking to “pull it back.” With steer‑by‑wire, the system can subtly adjust the front wheels before loss of control occurs, stabilizing the vehicle in advance. Real‑world tests show that this function significantly improves stability limits on slippery roads and during emergency lane changes. That means your model exhibits greater composure in critical moments—and such composure is exactly what distinguishes a premium brand from an ordinary one.

Consistent steering feel throughout the lifecycle, ensuring your brand is not undermined by aging vehicle performance. With conventional EPS, after several years of use, the steering wheel may feel “loose” or “stiff,” leading users to complain that the vehicle “gets harder to drive as it ages.” Hirain employs a torque‑closed‑loop control architecture that uses steering wheel torque as a direct control target, significantly reducing the impact of mechanical wear on steering feel. Whether the vehicle is new or has been driven hundreds of thousands of kilometers, the steering feel remains consistently premium. This means your users enjoy “new‑car quality” from the day they take delivery until the day they replace the vehicle—a genuine plus for brand reputation and high residual value.

It is this pursuit of driving experience that has earned Hirain’s solution recognition during in‑depth evaluations. During joint testing with a leading domestic OEM, the customer remarked: “This solution not only represents industry‑leading production readiness but also demonstrates, through its system integration and control algorithms, Hirain’s profound technical expertise in the field of chassis‑by‑wire.”

Safety is the entry ticket; experience is the moat. What truly convinces mainstream automakers to choose Hirain is our ability to turn all of this into a deliverable, mass‑production‑ready reality. As a technology service company with over two decades of experience in automotive electronics, Hirain’s value extends beyond providing advanced hardware and algorithms—we help automakers shorten development cycles and reduce integration risks. Our platform‑based design enables rapid adaptation across different vehicle types, from mainstream passenger cars to high‑end electric vehicles. Meanwhile, our automotive‑grade supply chain and mature manufacturing system ensure the stability and consistency required for large‑scale delivery. This explains why multiple mainstream automakers have ultimately placed their “trust vote” with Hirain.

The implementation of GB 17675 marks the beginning of a new, standardized phase for steer‑by‑wire technology. For Hirain, this is not only the moment to realize the value of years of technological accumulation, but also a new starting point for collaboration with our partners. Moving forward, with mature product solutions, rigorous testing and validation, and full‑lifecycle service support, we will help more automakers seize new opportunities in the intelligent chassis arena, jointly advancing the evolution of automotive intelligence, connectivity, and electrification.

The era of steer‑by‑wire has arrived. Hirain is ready.

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