NSK Cluster Rover Module Concept

A power module for autonomous EVs

The functions for driving, steering, and braking are all integrated into the drive module itself, which is also equipped with functions for measuring loads and adjusting vehicle height.

The in-wheel motors that drive the two wheels and the brakes are integrated at the bottom. On top of that, there are carbon fiber plate springs and dampers to absorb shock, and a pantograph jack, which adjusts vehicle height, is fitted at the very top. The pantograph jack has a ball screw actuator. The turn of the screws lengthens or shortens the actuator, allowing vehicle height to be adjusted.

With this construction, the spring rate (the hardness of the springs) that supports the vehicle and the vehicle height adjustment function are independent, and to they can be set independently.

The number of common drive modules can be adjusted for the size of the vehicle.

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