Development of Electric Drive System for New Model Super Sports Hybrid Vehicle

Paper #:
  • 2016-01-1685

Published:
  • 2016-04-05
DOI:
  • 10.4271/2016-01-1685
Citation:
Tamura, S. and Yoshinari, T., "Development of Electric Drive System for New Model Super Sports Hybrid Vehicle," SAE Technical Paper 2016-01-1685, 2016, doi:10.4271/2016-01-1685.
Pages:
7
Abstract:
A three-motor hybrid system suitable for a super sports car was developed. This system features high power, light weight and high response, and has high cooling performance for high-load operation such as circuit driving.The power plant drives the rear wheels using the combination of a midship-mounted V6 twin-turbo engine, the direct drive motor of a hybrid system mounted directly on the engine, and a 9-speed dual-clutch transmission (DCT). The front wheels are driven by a twin-motor unit (TMU), and the size and weight of the Intelligent Power Unit (IPU) that supplies electric power to the TMU has been reduced to enable mounting behind the seats inside the cabin. In addition, the IPU uses air-conditioner cooperative cooling to enhance the cooling performance. As a result, assist is performed even during high-load operation.By utilizing this system, driving force can be distributed properly to the wheels on both sides of front and the axles of back and front to maximize acceleration and cornering performance during all situations. As a result, direct vehicle behavior according to driver's intention is realized. Electric drive (E-Drive) system has achieved following:High-response powertrain and high acceleration performance are achieved by E-Drive systemImprovement of cornering performance by drive force distribution using three motorsHigh power output continuation for circuit driving by high cooling performance
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