How Idle-stop Systems Work

고속도로에 올라설 때 아무도 보고 싶어하지 않는 무서운 이미지입니다. 평평하고 흐릿한 자동차 바다가 범퍼에 붙어 있고 공간이 확보되면 거의 1인치도 움직이지 않습니다. 교통 체증 에 갇힌 경험은 대부분의 사람들에게 심리적으로 충분히 어렵습니다. 보통 우리는 회의나 다른 약속에 늦기 때문에 가능한 한 쉽게 목적지에 도착할 수 없다는 스트레스가 속상할 수 있습니다. 게다가, 당신은 차 안에 완전히 갇혀 있고, 안전 벨트 로 묶여 있으며 , 사물이 약간 밀실 공포증이 되는 경향이 있습니다. 차를 버리기로 결정하지 않는 한 교통량이 정리될 때까지 갈 곳이 없습니다.

이러한 모든 트라우마와 함께 교통 체증에 앉아 있을 때 차는 여전히 달리고 있으며 계속해서 가스를 태우고 있다는 사실입니다. 더운 여름날, 에어컨이 설치된 차 안에 있어도 도로 위의 모든 배기관 에서 나오는 열기를 거의 느낄 수 있습니다 . 따라서 교통 체증으로 거기에 앉아 있으면 한 곳에 갇히는 것에 대해 스트레스를 받는 것이 아니라 기술적으로 돈을 창 밖으로 던지고 있는 것입니다. 엔진이 작동하는 자동차는 가만히 앉아 있거나 아주 천천히 기어가는 등 가스를 태우는 가장 비효율적인 방법 중 하나입니다.

And, of course, it's not just bad for your wallet; it negatively affects the regional air quality by creating air pollution and contributing to global warming. Carbon emissions released by your engine as a result of the process of internal combustion -- the burning of fossil fuels to create power -- float up into the atmosphere, creating smog and increasing local temperatures. This is known as the heat island effect in large metropolitan areas.

환경에 대한 많은 운전자들의 마음과 석유 생산 및 소비 비용의 증가로 인해 사람들은 기존 가솔린 엔진에 대한 대안을 찾고 있습니다. 빈번한 정지, 시동 및 정지 문제를 해결하는 한 가지 방법은 차량 작동 방식에 따라 엔진을 원활하게 켜고 끌 수 있는 기술입니다. 일반적으로 시작-정지 시스템이라고도 알려진 아이들-스톱 시스템은 본질적으로 오늘날 점점 더 인기를 얻고 있는 소위 마일드 하이브리드 를 구성하는 것 입니다.

Although "full" hybrid technology is understandably receiving lots of buzz in recent years, especially now that the auto industry is undergoing such upheaval, mild hybrids are also getting some attention lately. Despite the name, mild hybrids aren't technically hybrid cars . They're actually conventional vehicles that use internal combustion to turn gasoline into energy and rotational motion, propelling a vehicle forward. There is no electric motor in a mild hybrid to move the car, and although there's a battery , it serves a different purpose than a battery does in a full hybrid.

The battery in a mild hybrid is still very important, but its main purpose is as a part of the idle-stop system that shuts off the gasoline engine when a mild hybrid is at rest, coasting or slowing down. For instance, a stop at a red light at an intersection will cause the engine to cut off. When the car is idle, no gas will burn inside the engine. Once the light turns green and the driver applies pressure to the gas pedal, the engine should switch back on seamlessly, as though it hadn't been turned off at all.

There are essentially three main parts involved in an idle-stop system: the gasoline engine, an electric starter/generator and a battery. The transfer of energy works in that order, both forwards and backwards -- it just depends on what state the car is in. When the car's engine is on and you're just about to brake, stop-start systems use regenerative braking , where rotational energy from the wheels turns the electric generator and creates electricity. The generator sends electricity to the battery where it can be stored for later use. When the driver applies the brakes , however, the generator shuts off the gasoline engine. Pressing the accelerator pedal starts the engine once again by taking the stored energy from the battery and running it through an electric starter.

Although the savings you'll get on fuel in a mild hybrid won't really compare to those of a full hybrid car, stop-start technology is still a promising step forward in making conventional cars much more fuel-efficient. This is an especially important step, since most fuel economy problems stem from idling and the constant stop and go nature of city driving. The technology has actually been around for a while, but we'll a look at some notable newer cars using idle-stop systems and the improvements that are underway for the existing technology.

Several recent car models will use (or have used) some kind of stop-start technology, with most examples coming from Europe or Japan. Some people might not know that the MINI Cooper, built under the BMW Group, has actually used idle-stop technology since 2007. And German automaker Audi started using an idle-stop system in the second quarter of 2009 in its A3, A4 and A5 models, with more to follow.

The most recent, and perhaps the most significant, example of a vehicle receiving an idle-stop system is the Madza3, which will begin using a new and improved type of stop-start technology by the end of 2009. While some systems tend to suffer due to the use of a conventional electric starter, which can cause slow and sluggish restarts, the new Mazda system will use combustion for the restart. Direct injection plays an integral part in the function of the system that Mazda calls the Smart Idle Stop System, or SISS. When a vehicle slows down and stops, sensors position the engine's pistons in specific locations within each of the cylinders. This allows the system to determine which of the cylinders is fully pressurized and ready to fire. At restart, fuel is injected into the appropriate cylinder, the fuel and air mix is ignited and the engine continues to operate as it normally would.

이러한 약간의 개선으로 Mazda는 다른 기존 시스템이 다시 시작하는 데 걸리는 시간의 약 절반인 350밀리초 만에 엔진을 다시 시작할 수 있으며 연료 사용도 10% 줄일 수 있다고 주장합니다.

하이브리드 자동차와 연료 효율 기술에 대한 자세한 정보는 다음 페이지의 링크를 참조하십시오.

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