The ACU U310 chip simplifies complex system design by replacing up to 6 microcontrollers and efficiently controlling multiple functions in parallel, including inverters, motors, gearboxes, DC-DC, OBC, Auxiliary Functions and more.

The ACU U310’s capabilities extend beyond powertrain. This versatile system-on-chip can also be used for:

• Chassis Control Systems
• Data Fusion
• Air compressor
• Thermal Management System
• Other Control Systems

By leveraging the ACU U310’s versatility, EV manufacturers can achieve a more integrated and efficient control system, leading to improved control & performance.

The Advanced eXecution & Event Control (AXEC) unit combines programmable hardware, mathematical coprocessors, and configurable peripherals for direct sensor and actuator interfacing. The programmable hardware is called the Flexible Logic Units (FLU) and lies at the heart of the ACU architecture. It is a programmable logic fabric equipped with lookup tables, flip-flops, SRAM, and signal processing units, programmed using standard hardware description languages like Verilog or VHDL. The ACU U Series introduces the concept of multiple FLU partitions, ranging 1-4.

AXEC handles fast-response-time processing and real-time control, while CPUs manage high-level and low-response-time software. Designers can choose CPU or AXEC for specific tasks, but AXEC typically handles complex processing, reducing CPU usage. Hardware processing ensures rapid, precise responses, regardless of event volume or frequency.

Learn more about the AXEC (blog coming soon)

The ACU is designed to meet ASIL-D design ready, the highest level of the automotive safety integrity level of the ISO 26262 functional safety standard. The Safety Integrity Agent (HISIL) of the ACU U Series serves as the central hub for all the safety mechanisms integrated into the ACU and is responsible for detecting, containing, and reacting to faults in nanoseconds. HISIL not only monitors latent and transient faults at the semiconductor level but also at the software and system levels.

With the introduction of multi-CPU and multi-FLU, ACU U FLU enables safe multitasking and function grouping with unified firmware virtualization from CPU down to FLU level. ACU U has a deterministic architecture and guarantees Worst-Case Execution Time to design safety-critical applications

Learn more about HISIL (blog coming soon)

The new generation of ACU offers the highest protection against actual and future threats. The Flexible Hardware Security Module (FHSM) is a sub-system embedded in ACU U Series compliant with EVITA Full and the ISO 21434 automotive cybersecurity standard. It has dedicated programmable hardware that can host custom hardware-accelerated security functions to enhance protection or monitor potential security breaches of the system. This unique feature enables secured software execution and updates and protected real-time communications using an extended span of cryptographic algorithms.

Learn more about the FHSM (blog coming soon)