Nissan Hybrid Electric Vehicle Prototype
August 7, 2008 by admin
Another Nissan vehicle that is powered by the advanced lithium-ion batteries apart from the Electric Vehicle Prototype is the Hybrid Electric Vehicle (HEV) Prototype. At the moment, the HEV is tested on the Infiniti G35/G37 sedan.
The HEV delivers two breakthrough technologies, a high-performance rear-wheel drive hybrid system and parallel-powertrain hybrid system.
The parallel-powertrain system consists of an energy-optimising system with two clutches, where one motor is directly connected to an engine and transmission via two separate clutches. The motor switches between the two clutches to optimise and conserve energy utilisation as well as improve fuel-efficiency, depending on the driving conditions.
The Nissan Hybrid Electric Vehicle Prototype also uses the advanced lithium-ion batteries is supplied by the Nissan-NEC joint-venture, AESC (Automotive Energy Supply Corporation).
Below are the dynamic characteristics of the clutches from the press releases:
- Idle-stop: The battery is used to power the motor to save on fuel.
- Regular driving: The engine is used to power the motor as well as regenerate the battery.
- Acceleration: Both the engine and battery (power assist) is used to power the motor to achieve smooth acceleration.
- Deceleration: Energy from braking is conserved and re-routed back to regenerate the battery.
- Lithium-ion Battery
[...] has unveiled the all-electric and hybrid electric prototype vehicles where both are powered by advanced lithium-ion [...]