In the engine automatic start and stop of the vehicle is traveling in a temporary stop (e.g. red light) when automatically turn off. When you need to move on, the system automatically restart a system of the engine. TV can reduce unnecessary fuel consumption, lower emissions to improve fuel economy. The disadvantage is repeated using the starter is likely to cause thermal damage starter, also have some impact on the battery life.
1 Engine start-stop technique noun
is the engine automatic start and stop temporary parking the vehicle is running (e.g., red light) when automatically turn off. When you need to move on, the system automatically restart a system of the engine. It is implanted on the conventional engine by having an idle stop function to enhance motor from the car when the idling stop condition is satisfied, the engine does not work completely extinguished. When the vehicle needs to start again proceeds, the idling start and stop the system to respond quickly to the driver’s command to start, rapid start of the engine, the instantaneous convergence, thereby greatly reduce fuel consumption and exhaust emissions.
automatic engine start-stop system is to send the yearsThe most rapid development of environmentally friendly automotive technology, especially for stop-go city traffic. According to statistics, by 2012, Europe will have 50 new listings percentage of car parking systems start with. The computer system is determined by the state of the vehicle such as the vehicle at a red light, clogging standstill, the computer can control the operation of the engine is automatically stopped, and stops operating phase, it does not affect the use of the car air conditioner, audio equipment and the like. By this technique can save fuel 5 percent under normal road conditions, road congestion in the highest percentage of about 15 can save fuel. According to authoritative testing, the use of this technology will enable ordinary car to save 10 percent to 15 percent fuel per year.
● What are the restrictions when start-stop system work?
into operation start-stop system is not at the expense of other vehicle systems at the expense of the normal operation, such as battery power is below the limit value , vehicle air conditioning systems during defogging work within the brake system pressure drops below a certain point, when the vehicle forward or backward “coasting”, etc., will not be extinguished engine start-stop system, if the engine will stall without delay restart.
● frequent start and would likely increase engine wear?
engine wear more than half from a cold start, start and stop the system working conditions, there are also limitations. Cold start of the vehicle or the engine oil temperature and the water does not reach the normal value when, even if the function is activated, the engine is not automatically start and stop.
In the hot start when, due to the engagement between the engine and lubricating the parts have entered the gap over state, engine wear is minimal, but this time the oil played role is very important, for vehicles equipped with start-stop system should also use a higher grade of motor oil. While the engine lubrication system manufacturers will be improved, such as increase in the oil or the oil jet bore at the piston, etc., to achieve the engine start at the moment adequate lubrication purposes.
● automatic start-stop system is used only for luxury cars?
The automatic start-stop function of the vehicle, such as a battery and starter motor associated components have been optimized by reducing downtime idle engine wear, so you can make the life of the engine becomes longer.
but not just automatic start-stop system installed in luxury models, the technology has been applied very widely, such as the Audi all models, such as Golf BlueMotion version, others have also started its own brand vehicles equipped with automatic start-stop system, as long moving ease, auspicious Imperial EC7, like the Great Wall C30.
The advantages and disadvantages of the engine 2 from the start-stop function
advantages: reduce unnecessary fuel consumption and emissions to improve fuel economy. Waiting lights in city traffic or traffic jams, it is possible to minimize the idle time of the engine idling and engine stalling after which provide operating power to replace the pulley of an engine cooling fan and the power car air-conditioning.
Disadvantages: more durable and the starter battery. Generally starter design allows a large operating current, but time is short. Repeatedly using the starter is likely to cause overheating damage to the starter, and therefore the automatic starter comprising a starter start-stop function must be durable than many normal. Meanwhile, due to the increased number of charge and discharge of the battery, also have some impact on the battery life.
3. The method of use of the engine start-stop technique
directly with the brake pedal as long as the vehicle is completely stopped after about two seconds, the engine will automatically turn off until stepping on the brake pedal, the engine will remain closed. A long release the brakes or turning the steering wheel, the engine will automatically and immediately ignition, throttle and can be started immediately, the entire process state at the D range.
