Renault boosts ZOE EV’s range by almost 15% to 149 miles with new motor unit
4 March 2015
|The new R240 motor unit with integrated PEC. Click to enlarge.|
Renault has extended the range of its battery-electric ZOE to 149 miles (240 kilometers)—a boost of 19 miles (31 km), or 14.6%—in the New European Driving Cycle (NEDC) by using a new lighter and more compact R240 electric motor and an optimized electronic management system. (Earlier post.)
The R240 is a synchronous electric motor with rotor coil, with a power output of 65 kW and torque of 220 N·m (162 lb-ft). It also features a built-in Chameleon charger (earlier post) which allows faster charging at home (3 kW and 11 kW). The R240 is an all-Renault motor, designed by Renault engineers at the Technocentre R&D facility outside Paris and at the Cléon plant where the motor is made—close to Flins, where the ZOE is produced.
|ZOE. Click to enlarge.|
ZOE’s new R240 motor features improved performance (and consumes less energy), while offering a longer driving range and faster charging times. The new motor builds on Renault’s expertise in electric vehicles; 95 patents have been filed to date.
Two main areas of focus in the development were improved electronic management to cut electric energy consumption on the move and the new charging system to reduce charging times at low power levels. When designing the new motor, Renault focused on integrating components which have helped to cut the motor’s size by 10% without sacrificing performance. This opens up new opportunities for the motor to be fitted to smaller cars.
|Exploded view of the R240. Click to enlarge.|
Modules are no longer stacked, having been replaced by fully integrated modules.
Smaller modules have been designed and assembled to meet precise requirements (gaps reduced between modules, external power cables removed).
An air cooling system is now used for the assembly (ducts between modules have been removed). Only the Power Electronic Controller is still water-cooled for its specific requirements.
The junction box, the power electronics unit and the Chameleon charger are now in a single unit called the Power Electronic Controller. The unit is 25% smaller as a result.
|Cutaway view of the Power Electronic Controller. Click to enlarge.|
Renault is continuing its research into improving electric motor technology—the underlying goal of its involvement in the FIA Formula E Championship as both a technical partner to the series and the title sponsor of the e.dams-Renault team. By testing EV technology under extreme race conditions, this championship will help to speed up the progress of EV development in terms of both performance and range, the company said.
TrackBack URL for this entry:
Listed below are links to weblogs that reference Renault boosts ZOE EV’s range by almost 15% to 149 miles with new motor unit: