(机械毕业设计浅谈汽车制动系统及其发展趋势--英文文献翻译中文英文

(机械毕业设计浅谈汽车制动系统及其发展趋势--英文文献翻译中文英文内容摘要：

ke wheel cylinder of high pressure brake oil moves the pistons, exert forces on two pieces of brake shoe half moon, make its pressure tympanic cavity wall, on the friction to stop the brake drum rotation so as to achieve the effect. A disc brake Also, the working principle of disc type brake can be used to describe a plate, you with your thumb and forefinger rotating plate, plate will also cease to rotate. The car disc brake is by the brake oil pump, a connected with the wheels of the brake disc and disc brake calipers. When braking, high pressure brake fluid drive piston calipers, brake shoe pressure to the brake disc brake effect thereby. Disc type brake disc type brake disc brake, sometimes called it points mon disc brake and disc brake two ventilation. Ventilated disc brake is set aside a gap between two pieces of brake disc, make the air flow through the gaps in some ventilated disc also drill out many circular vent on disk, or on the disk cut out of the tank ventilation or precast rectangle hole. Ventilated disc brakes with romantic role, the cold and hot effect is better than ordinary disc advantage of a disc brake is in high speed brake brake quickly, cooling effect is better than that of drum brake, the braking performance of constancy is good, easy to install the advanced electronic equipments like ABS. The main advantage of the drum brake is the brake shoe wear less, low cost, easy maintenance, due to the absolute braking force of drum brake is much higher than disc brakes, so widely used in the rear wheel drive truck Disc brake In recent years, the car speed is improving, growing total weight of the truck and addition, the car39。 s centre of gravity is generally lower and widely used in the cross section of the small diameter wide tires, make brake installation location is restricted, so in the thermal stability of used on heavy duty truck and car brake can better the increasing range of disc disc brake can be divided into pliers disc brake and full brake two kinds. Electronic control unit ABS antilock braking system is a kind of automobile electronic system, it includes a electronic control unit, a number of wheel speed sensor and an embedded electronic valve valve control unit through the wheel speed sensor of pulse changes to grasp the operation condition of the one wheel may produce lock, electronic control unit will send instructions to electronic valve, to make it through the rapid switch to achieve control of the brakes, the purpose of adjusting general, the rapid switch valve can be up to 12 times per advanced models of the ABS can have four sets of circuit system, namely four loop ABS.The hightech product mainly has two types, that is, electronic and safety coefficient is higher, the price is high, the original is configured on large luxury cars, now, small and mediumsized ordinary cars began to configuration。 Mechanical safety coefficient is low, the price is low, generally only used in mercial our country, dongfeng automobile pany anization development since 1992, ABS, and in December 1995, passed the technical car Ann technology development pany put brand of ABS, have been used in some parts of the mini has bee the mainstream of automotive technology in the 20th century, all the car configuration ABS is of marxist educator yves even ko when it es to people39。 s selfcontrol once say: no brake is impossible to have car.Visible, automobile braking system with selfcontrol, is a moment not to leave , the traditional brake system may have the effect of emergency brake, lock is easy to cause the car the tire is lock, because of inertia, cars will still be a distance to slide on the by rolling into a taxi, the increase of friction coefficient, adhesion coefficient is reduced, car lateral displacement, easily lead to wear and tear, flat tire, sideslip and spin the order to overe the traditional braking system lock phenomenon, people invented the ABS antilock braking。