Front shock absorber assembly introduce

Shock absorbers are mainly used to suppress the oscillation and impact from the road surface when the spring rebounds after absorbing vibration. When passing through uneven roads, although the absorbing spring can filter out the vibration of the road surface, the spring itself still has reciprocating motion, and shock absorbers are used to suppress this type of spring jumping. If the shock absorber is too soft, the body will jump up and down, and if the shock absorber is too hard, it will bring too much resistance, Obstructing the normal operation of springs. In the process of modifying the suspension system, hard shock absorbers need to be matched with hard springs, and the hardness of the springs is closely related to the weight of the vehicle. Therefore, heavier vehicles generally use harder shock absorbers. The device connected to the shock-absorbing crankshaft is used to counteract the torsional vibration of the crankshaft (i.e. the phenomenon of the crankshaft twisting due to the impact force of cylinder ignition). In the suspension system, vibration is generated due to the impact of elastic components, To improve the smoothness of car driving, shock absorbers are installed in parallel with elastic components in the suspension system. To attenuate vibration, hydraulic shock absorbers are commonly used in car suspension systems. Their working principle is that when relative motion occurs due to vibration between the frame (or body) and the axle, the piston inside the shock absorber moves up and down, The oil in the shock absorber chamber repeatedly flows into another chamber through different pores. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, converting the vibration energy of the car into oil thermal energy, which is then absorbed and dissipated into the atmosphere by the shock absorber. When the cross-sectional area and other factors of the oil channel remain unchanged, the damping force increases or decreases with the relative motion speed between the frame and the axle (or wheel), And it is related to the viscosity of the oil [1]. Shock absorbers and elastic components bear the task of cushioning and shock absorption. If the damping force is too large, it will cause the suspension elasticity to deteriorate, and even damage the shock absorber connecting parts. Therefore, it is necessary to adjust the contradiction between elastic components and shock absorbers (1) During the compression stroke (when the axle and frame are close to each other), the damping force of the shock absorber is relatively small, in order to fully exert the elastic effect of the elastic element and alleviate the impact. At this time, the elastic element plays the main role (2) During the suspension extension stroke (the axle and frame are far away from each other), the damping force of the shock absorber should be large and quickly absorb shock (3) When the relative speed between the axle (or wheel) and the axle is too high, it is required that the shock absorber can automatically increase the fluid flow rate to maintain the damping force within a certain limit, in order to avoid bearing excessive impact loads. Tubular shock absorbers are widely used in automotive suspension systems, and they can provide shock absorption in both compression and extension strokes, which is called bidirectional shock absorbers. New shock absorbers are also used, It includes inflatable shock absorbers and resistance adjustable shock absorbers)

FAW Toyota Yize IZOA introduce

The Yize IZOA, as the first model under FAW Toyota based on the TNGA architecture, does not continue the fixed mode of small cars with small displacement, but is equipped with a "large displacement" TNGA 2.0L naturally aspirated engine. The TNGA 2.0L engine has entered the domestic stage, and through technologies such as improving thermal efficiency, reducing friction resistance, and controlling intake and exhaust valves, its power performance is improved by 15% -20% compared to traditional 2.0L engines, The fuel economy has improved by 25%. The Yize IZOA transmission system is matched with a 6MT or CVT gearbox. In terms of appearance, the Yize IZOA will draw inspiration from the design elements of the Fengchao Way concept car. The front grille is equipped with a horizontal air intake grille and two angled headlights on both sides, and the lower grille adopts an inverted trapezoidal shape with a black mesh design inside. The traditional straight waistline is diluted, and the exaggerated front and rear wheel arches are connected by a flowing arc, The large area anti friction protection panel is full of wildness. The second row doors of the new car are equipped with hidden door handles, similar to the Honda XR-V, and the unique "boomerang" LED light group at the rear is impressive. The Yize IZOA continues the design style of the American version C-HR, leaning towards the driver's side as a whole, equipped with a three spoke multifunctional steering wheel, integrated with Bluetooth phone, multimedia playback and other control keys. The instrument panel adopts a double barrel shape, The center is equipped with a driving computer. The top of the center console is equipped with an 8-inch floating display screen, supporting HMI human-machine interaction system, and the bottom is the air conditioning area control key