Titel : 10 Innovation Technology Best Car Engine (Part 2)
Link : 10 Innovation Technology Best Car Engine (Part 2)
10 Innovation Technology Best Car Engine (Part 2)
Car And Vehicles Review- 10 Innovation Technology Best Car Engine (Part 2),Earlier in the 10 Best Engines of Innovation Technology Part 1, has been reviewed 5 best first innovation; Four Steps to the machine, Forced Induction, Fuel Injection, Direct Injection and Aluminum Engine Blocks.
The following are 5 of the 10 Best Engines of Innovation Technology next:
6 Overhead Camshafts
When it comes to the engine, the term "DOHC" may no longer sound familiar. That term refers to the amount of overhead camshaft cylinder on each machine. For decades, most cars have engines "OHV" (Overhead Valves), also called "pushrods". This type of arrangement adds mass to the engine and can limit the overall speed.
In setting Overhead Camshaft, Cam size is much smaller and is positioned above the cylinder head, not in the engine such as the Overhead Valves. Engine Single Overhead Cam (SOHC) has a Cam, while DOHC has two Cam.
While many car manufacturers are leaving OHV engine, SOHC and DOHC engines but not replace it as a whole. Chrysler and General Motors still use Pushrod on their modern V8 engine. But since the 1980s, SOHC and DOHC engines are becoming increasingly popular, especially on machines smaller.
Pros: Better performance.
Disadvantages: The increasing complexity and costs.
7 Variable Valve Timing
Are you familiar with the Honda engine? If yes, then you are surely familiar with the term VTEC or "Variable Valve Timing and lift Electronic Control". Variable Valve Timing here means the air flow in and out of the valve is slowed or accelerated according to the need.
But Honda is not the only car company to offer such a system.
Toyota also has a similar system called VVT-i or "Variable Valve Timing with intelligence", as well as BMW calls it Valvetronic or VANOS, which stands for "Variable Nockenwellensteuerung", which means Variable Camshaft Control.
While everything works in slightly different ways, but they all aim to complete the same task, which allows more air and fuel flowing into the valve at different speeds. This makes the engine work more flexible and allows the achievement of high performance in various conditions, and to improve the efficiency of fuel use.
Pros: flexible performance and fuel efficiency.
Disadvantages: High production costs.
8 On-board Computer
Developing increasingly sophisticated machines, has a variety of moving parts and a number of different processes that take place simultaneously. That is why everything in modern cars is set by On-board Computer (Computer on-board) called the Engine Control Unit (ECU).
ECU ensures the entire process such as ignition timing, air / fuel, fuel injection, idle speed, and other work as appropriate. ECU to monitor what is happening inside the machine using a variety of sensors and perform millions of calculations every second to keep it operating properly. Another computer in the car to control a variety of other things such as electrical systems, airbags, interior temperature, traction control, ABS and automatic transmission.
Cars become increasingly computerized since Computer On-board Diagnostic (OBD) was first added in the 1980s. That computer is responsible for the indicator "Check Engine" on the car dashboard. A mechanic can connect a computer to the OBD port to diagnose existing problems in the car. OBD can not directly show the problems being experienced by the car, but can provide early indications are good.
Pros: Diagnosis and better fuel efficiency.
Disadvantages: The complexity and costs.
9 Clean Diesel
Most people still consider a diesel engine is noisy, uncomfortable and cause pollution which is very annoying. Machines unreliable in the era of the 1970s and 1980s. The statement also comes under the state Public transport diesel traffic passing by on the highway.
The statement can be justified in certain cases such as negligence in the maintenance, repair and methods for the sake of saving a trick due to a lack of rigor in practice due diligence operations. But in fact, the modern diesel engine is now a reliable, clean and very efficient. With the presence of Diesel engines that use fuels with a low sulfur content helps suppress excessive pollution.
Companies like BMW, Mercedes-Benz, Volkswagen, and many more, to develop the Diesel engine with improvements such as Turbocharging, Fuel Injection Sophisticated, and Control Computer that offers efficient driving experience with high torque. And with the ability to dominate the diesel-engined Audi racing, then Diesel performance no doubt.
Advantages: high torque, fuel efficiency and cleaner emissions.
Disadvantages: low RPM and higher initial costs.
The combination of soaring fuel prices, awareness of environmental conditions, and government regulations in the various countries will be emission standards, forcing development to more environmentally friendly engines. One of the biggest breakthrough in improving the efficiency of the engine to boost the last few years is a Hybrid engine, which is a fusion between an electric machine with a traditional gasoline engine.
Toyota Prius Hybrid car is one of the highest sales figures in the United States. The car uses a four-cylinder 1800 cc engine combined with an electric motor that produces 134 horsepower. At low speeds, the electric motor works alone without using any fuel at all, in other opportunities to support the electric engine petrol engine working. The car is able to travel about 25-30 km for every liter of fuel consumed.
Pros: fuel consumption efficiency.
Disadvantages: The complexity and high initial cost.
From all the innovations and improvements that continue to grow it is certain that evolution leads to engine fuel efficiency and emissions suppression. While the presence of an electric car is still in the development stage and are becoming increasingly common, traditional engines that use fuels will continue to evolve into the better.
Thus Article 10 Innovation Technology Best Car Engine (Part 2)
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