И инновации современной

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ТЕХНИЧЕСКИЕ НАУКИ 
 
A.KH. Al-Jumaili,
PhD student, 
e-mail: abdulsatar_k@mail.ru, 
supervisor: V.V. Serebryakov,  
candidate of technical sciences, professor, 
Moscow polytechnic university, 
Moscow 
 
IMPROVING VEHICLE’S RESOURCES AND BRAKING 
EFFICIENCY BY USING IC ENGINE AS AN ADDITIONAL 
BRAKE-DEACCELERATOR 
 
Abstract: the article analyzes the braking of ICE when using 
it as a deaccelerating brake. It is shown that braking of ICE improves 
properties of vehicles, increases brake pad life more than 4 times and 
reduces fuel consumption by 5-7%, as well as other many operating 
advantages. 
Keywords: vehicles, ICE braking, mechanical losses, torque, 
transmission. 
Introduction. Due to the change of traffic rules towards 
increase the permitted speed of cars by 20 km/h, their kinetic energy 
and braking performance also increased, which negatively affected 
the reliability of the braking system and vehicle safety. Thus, when 
the speed is increased from 60 to 80 km/h, the kinetic energy of the 
car increases by 1.78 times, and, consequently, also increases the 
work of braking and wear and tear of brake pads, discs and drums, 
which reduces their resource and increase the cost of their 
replacement. One of the most reliability way to improve braking of 
vehicle is using the property of braking of ICE engine. The ICE 
brake system belongs to the auxiliary braking system, which can be 
used either separately or together with the service braking system. 
On vehicles with a higher weight, to improve braking efficiency on 
downhill slopes, the vehicle's auxiliary braking system is equipped 
with a motor brake – a flap that blocks the exhaust pipe to increase 
the engine's braking torque. 

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The main aim for using engine braking to improve safety in 
the following situations: slippery road braking; long downhill; and 
main and handbrake failure. Frequent use of car braking not only 
increases the safety of movement, but also saves resources and 
improves the environmental safety of the car due to fuel economy. In 
[1] it is shown that if during service braking of a passenger car-taxi 
(which make up 95...97% of all braking cases), the resource of brake 
pads will be increased by 4 times, and fuel consumption will be 
reduced by 5-7%. 

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