A hybrid vehicle is one that uses two or more distinct types of power, such as submarines that use diesel when surfaced and batteries when submerged. Other means to store energy include pressurized fluid in hydraulic hybrids.
In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol/gasoline, diesel engines and some hydrogen engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. The exhaust gas displaces atmospheric air and reduces O2 in the combustion chamber. Reducing the amount of oxygen reduces the amount of fuel that can burn in the cylinder thereby reducing peak in-cylinder temperatures. The actual amount of recirculated exhaust gas varies with the engine operating parameters.
A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction. Catalytic converters are usually used with internal combustion engines fueled by gasoline or diesel, including lean-burn engines, and sometimes on kerosene heaters and stoves.
Fuel efficiency is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work. Overall fuel efficiency may vary per device, which in turn may vary per application, and this spectrum of variance is often illustrated as a continuous energy profile. Non-transportation applications, such as industry, benefit from increased fuel efficiency, especially fossil fuel power plants or industries dealing with combustion, such as ammonia production during the Haber process.
A vehicle start-stop system or stop-start system automatically shuts down and restarts the internal combustion engine to reduce the amount of time the engine spends idling, thereby reducing fuel consumption and emissions. This is most advantageous for vehicles that spend significant amounts of time waiting at traffic lights or frequently come to a stop in traffic jams. Start-stop technology may become more common with more stringent government fuel economy and emissions regulations. This feature is present in hybrid electric vehicles, but has also appeared in vehicles that lack a hybrid electric powertrain. For non-electric vehicles, fuel economy gains from this technology are typically in the range of 3–10%, potentially as high as 12%. In the United States, according to the Department of Energy, idling wastes more than 6 billion U.S. gallons of fuel per year.
The Honda Insight is a hybrid electric vehicle that is manufactured and marketed by Honda. Its first generation was a two-door, two passenger liftback (1999–2006) and in its second generation was a four-door, five passenger liftback (2009–2014). In its third generation, it became a four-door sedan (2018–2022). It was Honda's first model with Integrated Motor Assist system and the most fuel efficient gasoline-powered car available in the U.S. without plug-in capability for the length of its production run.
The Ford Escape is a compact crossover SUV manufactured and marketed by Ford Motor Company since the 2001 model year. The first Ford SUV derived from a car platform, the Escape fell below the Ford Explorer in size; the Escape is currently sized between the Ford EcoSport and Ford Edge. The 2004 Ford Escape Hybrid was the first hybrid-electric vehicle from Ford, and the first hybrid produced as an SUV.
Homogeneous charge compression ignition (HCCI) is a form of internal combustion in which well-mixed fuel and oxidizer are compressed to the point of auto-ignition. As in other forms of combustion, this exothermic reaction produces heat that can be transformed into work in a heat engine.
Hydrogen fuel enhancement is the process of using a mixture of hydrogen and conventional hydrocarbon fuel in an internal combustion engine, typically in a car or truck, in an attempt to improve fuel economy, power output, emissions, or a combination thereof. Methods include hydrogen produced through an electrolysis, storing hydrogen on the vehicle as a second fuel, or reforming conventional fuel into hydrogen with a catalyst.
The fuel economy of an automobile relates to the distance traveled by a vehicle and the amount of fuel consumed. Consumption can be expressed in terms of the volume of fuel to travel a distance, or the distance traveled per unit volume of fuel consumed. Since fuel consumption of vehicles is a significant factor in air pollution, and since the importation of motor fuel can be a large part of a nation's foreign trade, many countries impose requirements for fuel economy.
The Partnership for a New Generation of Vehicles was a co-operative research program between the US government and the three major domestic auto corporations that was aimed at bringing extremely fuel-efficient (up to 80 mpg‑US vehicles to market by 2003.
Hybrid vehicle drivetrains transmit power to the driving wheels for hybrid vehicles. A hybrid vehicle has multiple forms of motive power, and can come in many configurations. For example, a hybrid may receive its energy by burning gasoline, but switch between an electric motor and a combustion engine.
BlueMotion is a trading name for certain car models from the Volkswagen Group, emphasizing higher fuel efficiency.
A hydrogen internal combustion engine vehicle (HICEV) is a type of hydrogen vehicle using an internal combustion engine. Hydrogen internal combustion engine vehicles are different from hydrogen fuel cell vehicles. Instead, the hydrogen internal combustion engine is simply a modified version of the traditional gasoline-powered internal combustion engine. The absence of carbon means that no CO2 is produced, which eliminates the main greenhouse gas emission of a conventional petroleum engine.
Honda Advanced Technology is part of Honda's long-standing research and development program focused on building new models for their automotive products and automotive-related technologies, with many of the advances pertaining to engine technology. Honda's research has led to practical solutions ranging from fuel-efficient vehicles and engines, to more sophisticated applications such as the humanoid robot, ASIMO, and the Honda HA-420 Honda-jet, a six-passenger business jet.
The Mazda Kazamai was a concept car made by the Japanese car manufacturer Mazda. It was first introduced at the 2008 Moscow International Motor Show in August.
Skyactiv is a brand name for a series of automobile technologies developed by Mazda that increase fuel efficiency and engine output. The initial announcement of the Skyactiv technologies included new engines, transmissions, body, and chassis, which appeared in Mazda products from 2011 onwards.
The Mazda6 (GJ/GL) is the third and current generation of the Mazda6. The sedan was unveiled during Moscow International Automobile Salon on 29 August 2012, and the station wagon version followed during the 2012 Paris Motor Show in the following month. In this generation, there are only 4-door sedan and 5-door station wagon versions available.
Nagare(流, flow) is an automotive design language created by Franz von Holzhausen and Laurens van den Acker for Mazda. Incorporated into a number of concept cars, starting with the car of the same name, the Nagare design lineup was intended as a showcase of what Mazda's cars may have looked like in 2020.
The Mazda2 is a subcompact/supermini (B-segment) car manufactured and marketed by Mazda since 2002, currently in its third generation. An entry-level model of the brand in markets outside Japan, the Mazda2 is positioned below the Mazda3. The Mazda2 has also been marketed as the Mazda Demio, while its direct predecessor was exported as the Mazda 121.
