1. Chassis
refers to the car chassis by a drive train driving system, a steering system and brake system combination of four parts, the support, mounting automobile engines and components, the assembly, formed the overall shape of the car, the engine power to bear to ensure the normal running.
vehicle chassis – a drive train
Usually a driveline clutch, transmission, universal transmission, final drive, differential and axle shafts and other components.
a. The function of the drive train
Power
emitted by an automobile engine drive train to the drive wheels. A drive train having a deceleration gear, reversing, interrupting the power, inter-wheel differential between the shaft and the differential function, with the engine working, to ensure the normal driving automobiles in various working conditions, and have good power and economy.
II. Kind and composition of the different drive train
can driveline energy transfer of
, is divided into mechanical drive, hydraulic drive, hydraulic drive, electric drive and the like.
vehicle chassis – with line
with the line from the car frame, axle, wheels (note) and suspension and so on.
car frame, axles, wheels and suspension and so the driving system, the driving system function is:
1 receives a power drive train, via the drive wheels and the road surface exerting traction effect, so that normal driving automobiles;.
2 bear on the total weight of the car and the ground reaction force;.
3 relaxation caused by uneven road surfaces the impact of the vehicle body, the attenuation in cars vibration, ride holding traveling;.
4 with the steering system, to ensure that vehicle handling and stability.
vehicle chassis – steering
is used to change or restore its traveling direction of the automobileSpecialized institutions known as automotive steering systems.
The basic components of the steering system
(1) mainly composed of a steering wheel steering mechanism, a steering shaft, a steering column and other components.
(2) of the steering wheel steering pitman arm rotation becomes wobble or a linear reciprocating motion of the rack shaft, and a steering operating force amplifying mechanism. Diverter generally fixed to the vehicle frame or vehicle body, the steering force of the steering post generally will change the drive direction.
(3) The diverter steering gear output force and motion to the wheels (knuckle), the left and right wheels and deflecting means according to a certain relationship.
type steering system
different steering of energy, a steering system and the steering system can be divided into mechanical power steering systems into two categories.
vehicle chassis – braking system
for causing the external (mainly road) apply a certain force in certain parts of the car (mainly the wheel) car, subjected to a certain extent so that forced braking means specifically referred to as a series of the braking system. Its role is to: make the cars on the roads were forced to slow down or even stop accordance with the requirements of the driver; the car has been suspended stabilize parking under various road conditions (including on the ramp); the downhill vehicle speed to maintain stable.
The automotive braking action and effect can only be a direction opposite to the direction of travel on the vehicle the external force, the size of these external forces are random, uncontrollable, and therefore must be installed on the vehicle a series of special? means to achieve the above functions.
Category:
(1) by the braking system
can be divided into a brake system brake system, the parking brake system, the emergency braking system and auxiliary braking systems. For causing the speed of a moving car or even reducing the parking brake system is referred to as the service brake system; has been suspended for causing in situ resident vehicle brake system is referred to as Fixed parking brake system; in in the case of failure of the service brake system, to ensure that cars can still achieve a braking system to slow or stop called emergency braking system; during driving, the auxiliary brake system to reduce the speed or to maintain a stable speed, the emergency vehicle but not stop system referred to as auxiliary brake system braking system. Above braking system, brake system and parking brake system is every car must have.
(2) actuating the brake energy by
Human brake system can be divided into a brake system, brake system and the dynamic servo braking systems. In the body of the driver as the only braking energy braking system braking system called human; complete braking system is called dynamic braking system by the conversion by the power of the engine from the potential energy in the form of pneumatic or hydraulic; use either human powered brake system for braking and engine braking systems known as a servo or power braking system.
(3) by braking energy transmission
the brake system can be divided into mechanical, hydraulic, pneumatic, electromagnetic and the like. Apply both to the braking system can upload mode is referred to as a combined braking system.
Brake system generally consists of two major portions of the brake actuating mechanism and the brake components.
(1) brake actuating mechanism
generate a braking operation, the braking effect and the braking control energy to various components of the brake, such as the 2,3,4,6, and a wheel cylinder and the brake line.
(2) Brake
force generating means (braking force) is trend impede movement or motion of the vehicle. Brakes are commonly used on car by friction with the fixing element working surface of the rotary member to generate a braking torque, referred to as a friction brake. It has disc brakes and drum brakes two structural types.