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Nissan unveils lunar rover prototype jointly developed with JAXA

Nissan today unveiled a lunar rover prototype jointly developed with the Japan Aerospace Exploration Agency (JAXA) at its Nissan Futures event. The JAXA Space Exploration Innovation Hub Center is conducting research on lunar rovers — a key technology for space exploration. Nissan has been working with JAXA on driving controllability of the rovers since January 2020.  A lunar rover must be able to traverse the moon’s powdery, rocky and undulating terrain and be energy efficient.

Nissan’s research applies the motor control technology it has developed through its production of mass-market electric vehicles such as the LEAF as well as the e-4ORCE all-wheel control technology featured on the all-new Ariya electric crossover. In its joint research with JAXA, Nissan is evolving e-4ORCE technology to improve its performance in sandy terrain and other harsh conditions.

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When cars are driven in sand their wheels frequently spin and dig in, impeding progress. A high level of driving skill is required to avoid getting stuck. The Nissan Ariya e-4ORCE model is equipped with front and rear electric motors. The torque of each motor can be individually controlled to provide traction during acceleration. When decelerating, the amount of regeneration is individually adjusted for the front and rear motors. When braking, e-4ORCE minimizes dive and body shake.

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Through the joint research, Nissan aims to contribute to the technological evolution of automotive technology and space exploration technology by sharing knowhow gained from test-vehicle development and combining it with JAXA’s knowledge of rover research.