Nissan Motor this week introduced its new drive system called e-POWER to customers. It marks the first time that e-POWER technology is available for consumers, marking a significant milestone in the electrification strategy under Nissan Intelligent Mobility.
e-POWER borrows from the EV technology perfected in the Nissan LEAF, the best-selling pure electric car in history, with more than 250,000 units sold. Unlike the LEAF, e-POWER adds a small gasoline engine to charge the high-output battery when necessary, eliminating the need for an external charger while offering the same high-output.
The technology of e-POWER
The e-POWER system features full electric-motor drive, meaning that the wheels are completely driven by the electric motor. The power from a high-output battery is delivered to the e-POWER’s compact powertrain comprised of a gasoline engine, power generator, inverter, and a motor. In conventional hybrid systems, a low-output electric motor is mated to a gasoline engine to drive the wheels when the battery is low (or when traveling at high speeds). However, in the e-POWER system, the gasoline engine is not connected to the wheels; it simply charges the battery. And unlike a full EV, the power source originates from the engine and not just the battery.
This system structure generally requires a bigger motor and battery because the motor is the only direct source to drive wheels. This has made it hard for the automotive industry to mount the system in compact cars. However, Nissan has cracked the code and learned how to minimize and reduce weight, develop more responsive motor control methods and optimize energy management. As a result, e-POWER uses a smaller battery than the LEAF, but delivers the same driving experience as a full EV.
The benefits of e-POWER
e-POWER delivers massive torque almost instantly, which enhances drive response and results in smooth acceleration. Also, the system operates very quietly, much like a full EV. Because e-POWER relies on the engine much less frequently, its fuel efficiency is comparable to that of leading conventional hybrids, especially during around-the-town commutes. The e-POWER system allows you to enjoy all the benefits of an EV without having to worry about charging the battery.
Nissan is actively pursuing a zero-emission, zero-fatality world for driving through its EV program and autonomous drive technology. To make this vision a reality, Nissan is developing “Nissan Intelligent Mobility,” which anchors critical company decisions around how cars are powered, how cars are driven, and how cars integrate into society, all while staying focused on creating more enjoyable driving experiences. e-POWER is another step towards achieving our zero-emission vision through a new and more efficient electric powertrain.
In 2006, Nissan experienced a breakthrough in its energy management technology. Nissan’s engineers were able to reduce the battery capacity to match its competitors’ hybrid vehicles while still delivering desirable EV qualities, such as quietness and efficient energy use. In addition, application of Nissan’s technologies, such as the integration of a power-generating engine, electric motor drive for compact car use, strengthening of the powertrain’s rigidity and improvements in NVH levels, became the foundation of e-POWER and its implementation in the compact-car segment.
Nissan is committed to developing electric-powered powertrains that use various fuels to cater to the different requirements of the world’s markets. e-POWER is but one example of that quest and will strengthen Nissan’s lineup of electric-powered powertrains. Nissan is also conducting research and development of the SOFC (Solid Oxide Fuel Cell) fuel-cell vehicle, and will continue to introduce innovative new products into various areas and promote the worldwide use of EVs.
Note: The e-POWER system is classified as a series hybrid. The Note e-POWER represents the first mass-production compact segment car ever to be equipped with a series hybrid system.
Why sports cars make us feel good
Forget romance, fine dining or an epic boxset binge – new preliminary research reveals that driving a sports car on a daily basis is among the best ways to boost your sense of wellbeing and emotional fulfilment.
The study measured “buzz moments” – peak thrills that play a vital role in our overall wellness – as volunteers cheered on their favourite football team, watched a gripping Game of Thrones episode, enjoyed a passionate kiss with a loved one or took an intense salsa dancing class. Only the occasional highs of riding a roller coaster ranked higher than the daily buzz of a commute in a sports car.
Working with neuroscientists and designers, Ford brought the research to life with the unique Ford Performance Buzz Car: a customised Ford Focus RS incorporating wearable and artificial intelligence technology to animate the driver’s emotions in real time across the car’s exterior.
Watch the video here https://youtu.be/AFpt6jziFsU
“A roller coaster may be good for a quick thrill, but it’s not great for getting you to work every day,” said Dr Harry Witchel, Discipline Leader in Physiology. “This study shows how driving a performance car does much more than get you from A to B – it could be a valuable part of your daily wellbeing routine.”
Study participants who sat behind the wheel of a Ford Focus RS, Focus ST or Mustang experienced an average of 2.1 high-intensity buzz moments during a typical commute; this compared with an average of 3 buzz moments while riding on a roller coaster, 1.7 while on a shopping trip, 1.5 each while watching a Game of Thrones episode or a football match, and none at all while salsa dancing, fine dining or sharing a passionate kiss.
For the research, Ford took one Focus RS and worked with Designworks to create the Buzz Car:
From concept, design and installation to software development and programming, the Buzz Car took 1,400 man-hours to create. Each “buzz moment” experienced by the driver – analysed using a real-time “emotional AI” system developed by leading empathic technology firm Sensum – produces a dazzling animation across almost 200,000 LED lights integrated into the car. The Buzz Car also features:
- High-performance Zotac VR GO gaming PC
- 110 x 500-lumen daylight-bright light strips
- 82 display panels with 188,416 individually addressable LEDs
Driver state research
Researchers at the Ford Research and Innovation Center in Aachen, Germany are already looking into how vehicles can better understand and respond to drivers’ emotions. As part of the EUfunded ADAS&ME project, Ford experts are investigating how in-car systems may one day be aware of our emotions – as well as levels of stress, distraction and fatigue – providing prompts and warnings, and could even take control of the car in emergency situations.
“We think driving should be an enjoyable, emotional experience,” said Dr Marcel Mathissen, research scientist at Ford of Europe. “The driver-state research Ford and its partners are undertaking is helping to lead us towards safer roads and – importantly – healthier driving.”
|Activity||Buzz Moments *|
|Game of Thrones||1.5|
* Average number of high-intensity buzz moments per participant
Car that sees round corners
Jaguar Land Rover is leading a £4.7 million (approximately R79 million) project to develop self-driving cars that can ‘see’ at blind junctions and through obstacles.
Britain’s biggest carmaker is leading a project called AutopleX to combine connected, automated and live mapping tech so more information is provided earlier to the self-driving car. This enables automated cars to communicate with all road users and obstacles where there is no direct view, effectively helping them see, so they can safely merge lanes and negotiate complex roundabouts autonomously.
Chris Holmes, Connected and Autonomous Vehicle Research Manager at Jaguar Land Rover said: “This project is crucial in order to bring self-driving cars to our customers in the near future. Together with our AutopleX partners, we will merge our connected and autonomous research to empower our self-driving vehicles to operate safely in the most challenging, real-world traffic situations. This project will ensure we deliver the most sophisticated and capable automated driving technology.”
Jaguar Land Rover is developing fully- and semi-automated vehicle technologies, offering customers a choice of an engaged or automated drive, while maintaining an enjoyable and safe driving experience. The company’s vision is to make the self-driving car viable in the widest range of real-life, on- and off-road driving environments and weather.
AutopleX will develop the technology through simulation and public road testing both on motorways and in urban environments in the West Midlands. Highways England, INRIX, Ricardo, Siemens, Transport for West Midlands and WMG at the University of Warwick join the AutopleX consortium, which was announced as part of Innovate UK’s third round of Connected and Autonomous Vehicle Funding in March 2018.