Renesas to develop 100W driverless car controller for Honda
Reneas Electronics is developing a 100W chiplet-based central controller for the next generation of Honda’s driverless car.
The chip will combine a 3nm Renesas R-car X5 processor and multiple chiplets, including a custom AI device developed by Honda to provide a performance of 2000TOPs at 20W/TOPS. In comparison, the Nvidia Drive AGX Thor single chip shipping later in 2025 has a performance level of 1000TOPS and has not specified the power envelope.
- Renesas moves to chiplets for X5 family
- 3nm X5 controller has 38 cores, AI chiplets
- Japanese push for automotive chiplets in 2028
- Honda taps IBM for neuromorphic AI chiplet
This will combine multiple electronic control units (ECUs) responsible for controlling vehicle functions into a single ECU for Advanced Driver Assistance Systems (ADAS) and Automated Driving (AD), powertrain control, and comfort features.
Honda has developed AI technology that combines the unsupervised learning technology of Helm.ai and the behaviour models of experienced drivers. This will enable AI to learn with smaller amounts of data and efficiently expand the range of situations where automated driving and driver assistance can be used.
Honda will apply its custom cooperative AI to further improve the precision of cooperative behaviour, such as yielding the right of way to others on the road, which is difficult even for a human driver. This will enable a highly-reliable driver assistance system that can respond quickly and appropriately to unexpected situations, such as an animal darting into the lane or an object falling onto the road.
The R-Car X5 chip will be used in the next generation of the Honda Series 0 saloon and SUV driverless car by 2029. The first implementations will ship in 2026. These Series 0 vehicles will use a new operating system called Asimo OS for Level 3 ‘eyes off’ automated driving.
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