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Cetane number

Cetane number

The requirement for good temper injected fuel flows from the principle of a diesel engine works. For proper operation of the diesel engine is characterized by the delay of ignition. Ignition delay is the time that elapses between the injection of fuel into the combustion chamber and the time of ignition. To make this ...

The stopping distance

The stopping distance

Needed to stop the track consists of two parts - the reaction path and its own braking distance. The reaction path is the path that travels from the driver when detects a critical situation, processes it and begins to brake. It takes about one second, ...

Variable valve timing

Variable valve timing

What is the main advantage of a modern engine with variable valve timing? Variable distributions are used to improve the refill cylinder piston engine. Engineers are trying to achieve with variable timing the best performance, whether it is a high performance, ...

Asleep

Asleep

Asleep lasts three to fifteen seconds, then the person either awakens or completely asleep! The risk of second sleep occurs mainly on motorways. When driving a quiet monotone brain receives impulses and ever the same after a while begins to evaluate these impulses as a regular resting state. ...

Construction of tires

Construction of tires

Each tire is composed of three main components: rubber (80-85%), various fibers (12-15%) and steel cord (2-3%). The modern tire is actually reinforced rubber composites, the basic structure you can see in the picture below. Tires for passenger cars and trucks to ...

Catalyst

Catalyst

The primary task of the catalyst is to convert hydrocarbons, carbon monoxide and nitrogen oxides, which are produced by the engine into less harmful substances - water vapor, carbon dioxide and nitrogen. The name comes from the Greek catalyst katalýtis that indicates the substance entering into chemical reaction, this chemical ...

Hybrid drive

Hybrid drive

The phrase "hybrid" means a drive that uses a combination of several sources of energy to drive a vehicle. This may include various combinations, such as the internal combustion engine - electric - battery, fuel cell - electric - battery, combustion engine - flywheel ...

Dvouhmotový flywheel

Dvouhmotový flywheel

In the eighties, the development focused on increasing efficiency through optimization of vehicle weight and reduced friction in the drive system. At the same time the car started to promote more diesel engines and increased torque values. Reducing friction in combination with the increase of non-uniformity of rotation ...

Aquaplaning

Aquaplaning

The phenomenon of aquaplaning occurs at high speeds on wet roads. The tire is not enough to pay through the grooves in the tread water lying on the road and the tire, therefore, make up the water wedge. If we increase the speed of the vehicle height or rise of the water column, water ...

Airbag

Airbag

The airbag is a fundamental and very important passive safety features. Together with pyrotechnic safety belt pre-tensioners and belt reduces the impact velocity of the head and chest. Seat belts are also often equipped with a pressure-limiting device, which reduces the load on the chest at impact. In the last ...

All articles from: Passive Safety
Moose test is verifying test driving a car with lateral stability vyhýbacím maneuver. Swedish moose test of famous journalists who use this test revealed poor driveability Mercedes A class, which the
In 2009 the automaker Mercedes-Benz new car for experimental research in the field of vehicle safety. This unique car was called the Mercedes-Benz ESF. The new security features that brought this project include
In 2009 the automaker Mercedes-Benz new car for experimental research in the field of vehicle safety. This unique car was called the Mercedes-Benz ESF. The new security features introduced by this project include
In 2009 the automaker Mercedes-Benz new car for experimental research in the field of vehicle safety. This unique car was called the Mercedes-Benz ESF. The new security features that brought this project include
In 2009 the automaker Mercedes-Benz new car for experimental research in the field of vehicle safety. This unique car was called the Mercedes-Benz ESF. The new security features that brought this project include
PPDB abbreviation denotes a new element in the protection of pedestrians, the active front hood. When the pedestrian impact hood with pyrotechnic detonators lifted slightly to obtain more space for safe deceleration of impact body
Pop-up Bonnet is marking passive safety features, Nissan, this element is used to protect pedestrians. Thanks to the active (ejection) hood is in a pedestrian impact crumple increased space between the bonnet and engine block Cima
Components and passive safety systems are those systems and components, which reduce the consequences of accidents. Generally, these elements to operate in an accident.
OnStar is a safety and security system used in many cars of General Motors Corp. The system uses GPS satellite navigation and mobile operators network signal. In case of accident or it
What is asleep most drivers know about. Insomnia, heavy meals, poor ventilation and heat in the cabin, sleeping passenger and especially long monotonous ride - all worth the emergence of second sleep. According to experts, each
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