Nissan develops its R&D, with the concept of "Trusted Driving Pleasure" in mind for its customers. Recently, we hosted the "2008 Advance Technology Briefing" for media, investors and analysts. The event detailed the company's progress in R&D and showcased Nissan's advanced safety and environmental technologies that will be introduced in upcoming products, as well as advanced technologies that are currently in development. The following is a summary of the event.
Part 3 Environmental Technologies
1. Attitude to environment
Nissan's environmental philosophy, "Symbiosis of People, vehicles, and nature", expresses the image of an ideal society. The company has been working proactively to realize this goal and has developed the medium-term objectives set forth under the Nissan Green Program.
In the short-term, Nissan is committed to improving the efficiency of the currently popular internal combustion engines, as well as reducing CO2 emissions from their products. Concurrently, the company is developing hybrids, plug-in hybrid cars, fuel-cell vehicles and electric cars as part of their mid to long-term vision.
2. ECO Pedal
To reduce CO2 emissions drastically, Nissan's approach involves three elements, "vehicles, individuals, and traffic", and is called the "Triple Layered Approach".
Unless drivers are aware of eco-driving, improved fuel efficiency will not function effectively, no matter how efficient it is. Thus, the ECO Pedal was developed in order to support eco-driving for "individuals".
Generally, when the driver excessively steps on the accelerator, fuel efficiency is significantly lowered.
The Eco Pedal system is activated when it detects excessive pressure through a push-back control mechanism that measures each instance the driver steps on the accelerator. At the same time, an eco-driving indicator displays the fuel consumption levels in real-time and informs the driver that he or she may be using more fuel than necessary.
In addition to allowing drivers more control over acceleration, the Eco Pedal raises driver awareness of eco-driving through it's push-back control mechanism. This is expected to improve fuel efficiency by 5-10%* under most driving conditions.
- * Based on Nissan's internal research data.
- ECO Pedal overview -
One participant who test drove a vehicle with the Eco Pedal stated, "Because I felt the push-back pressure when stepping on the accelerator, I realized immediately that I usually drive in a non-eco-driving manner".
As this new technology does not force eco-driving, the driver has the option to continue stepping on the accelerator, even after the system has been activated. In addition, this option can be turned on or off .
3. Hybrid Vehicle
Nissan's hybrid vehicles will be launched in FY2010 in Japan and North America. Nissan unveiled its newly-developed, high-performance rear-wheel drive hybrid vehicle prototype at the Advance Technology Briefing.
- Hybrid vehicle (Test vehicle) -
Nissan's new parallel hybrid system connects the motor, which operates both propulsion and regeneration, directly to the engine and transmission and encorporates two clutches. This is Nissan's unique system and is touted as one of the most efficient hybrid systems.
Nissan's hybrid system features a high-power lithium-ion battery and an extremely simple and efficient mechanism, which eliminates the need for conventional torque converters. This allows the motor to directly transmit power to the tires.
By regenerating energy during deceleration this results in improved fuel efficiency. At the same time, "fulfilling driving pleasure" is improved over the standard gasoline-powered vehicle by the simultaneous use of the motor and the engine during acceleration.
- System Overview -