Renault uses Maple to develop motor for electric vehicle


Renault recently selected Maplesoft’s Maple software for use in the design of a new motor. In the early phases it was used to perform first-order approximations of the rotor. This gave engineers an insight into how components would behave within different parameters and under different operating conditions, enabling an accurate choice to be made for the motor’s main dimensions. 

After analyzing this first set of results, engineers understood which topics demanded higher fidelity and from there they further developed in Maple the corresponding mathematical models based on the physical equations. 

One particular issue solved with Maple was the slot wedge, which holds the rotor wire in place ensuring reliability over both maximum loads and long-term operation. By modeling wedge deviation under centrifugal and thermal loads, the engineers determined a simple rule based on flexural stiffness; by taking into account competitors’ data, they selected the appropriate thickness and material for the wedge. 

May 15, 2015


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John joined UKi Media & Events in 2012 and has worked across a range of B2B titles within the company's automotive, marine and entertainment divisions. Currently editor of Automotive Testing Technology International, Crash Test Technology International and Electric & Hybrid Marine Technology International, John co-ordinates the day-the-day operations of each magazine, from commissioning and writing to editing and signing-off, as well managing web content. Aside from the magazines, John also serves as co-chairman of the annual Electric & Hybrid Marine Awards and can be found sniffing out stories throughout the halls of several of UKI's industry-leading expo events.

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