汽车新能源与节能技术

Design of driving axle

As the car to safety, energy saving, the constant attention to environmental protection, vehicle afte r vehicle bridge as a key component, the quality of their products on the safe use of cars and car perfor mance of a very large, so the car after Bridge Effectively optimize the design and calculation is very nece ssary.

Drive Bridge at the end of powertrain, its basic function is to increase came from the drive shaft or transmission of torque and power reasonably allocated to the left and right driving wheel and also bear in the role of the road and trailers or Body of power between the vertical and horizontal force. Drive fro m the main bridge general reducer, differential and the wheels, transmission and drive axle components , such as Shell. Bridge drive a vehicle with one of the four trains, its performance will have a direct impa ct on vehicle performance, and it is particularly important for the truck. Drive bridge should be designe d to meet the following basic requirements:

a) a suitable main slowdown than to ensure that the car from the best power and fuel economy.

b) small form factor to ensure that the necessary ground clearance. c) transmission gears and other par ts of a smooth, noise. d) in various load and speed of transmission with high efficiency.

e) to ensure adequate strength, stiffness conditions, should strive for the quality of small, in particular t he quality of the spring as possible, to improve the car ride. f) suspension and body-oriented movemen t coordination, the drive to the bridge, should also be coordinated with the campaign steering mechanis m.

g) simple structure, processing technology and good, easy to manufacture, enables easy adjustment.. Intelligent electronic technology in the bus to promote safe driving and that the other functions. The re alization of automatic driving through various sensors. Except some smart cars equipped with multiple outside sensors can fully perception of information and traffic facilities and to judge whether the vehicl es and drivers in danger, has the independent pathfinding, navigation, avoid bump, no parking fees etc. Function. Effectively improve the safe transport of manipulation, reduce the pilot fatigue,improve passe nger comfort. Of course battery electric vehicle is the key, the electric car battery mainly has: the use of lead-acid batteries, nickel cadmium battery, the battery, sodium sulfide sodium sulfide lithium battery, t he battery, the battery, the flywheel zinc - air fuel cell and solar battery, the battery. In many kind of cell s, the fuel cell is by far the most want to solve the problem of energy shortage car. Fuel cells have high p ollution characteristics, different from other battery, the battery, need not only external constantly supp ly of fuel and electricity can continuously steadily. Fuel cell vehicles (FCEV) can be matched with the car engine performance and fuel economy and emission in the aspects of superior internal-combustion veh icles.