The smart Trick of gearbox kereta auto That No One is Discussing
The smart Trick of gearbox kereta auto That No One is Discussing
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The adoption of planetary gearsets was a big advance in direction of the trendy automatic transmission. One of many initially transmissions to utilize this style was the handbook transmission fitted to your 1901–1904 Wilson-Pilcher automobile.[19] This transmission was built in the uk and employed two epicyclic gears to deliver four equipment ratios.
The valve human body In the transmission is answerable for directing hydraulic stress to the suitable bands and clutches. It gets pressurized fluid from the leading pump and is made up of several spring-loaded valves, Examine balls, and servo pistons. In more mature automatic transmissions, the valves utilize the pump pressure along with the stress from a centrifugal governor to the output side (and other inputs, which include throttle position or the motive force locking out the upper gears) to control which ratio is chosen. As being the automobile and engine transform speed, the difference between the pressures modifications, causing distinct sets of valves to open and shut.
The leading pump which pressurises the ATF is often a gear pump mounted among the torque converter and the planetary equipment established. The input for the leading pump is linked to the torque converter housing, which consequently is bolted to the engine's flexplate, And so the pump presents tension Each time the motor is jogging. A disadvantage of the arrangement is that there is no oil strain to work the transmission when the engine isn't functioning, thus it is actually impossible to drive begin a automobile Geared up with the automatic transmission without having rear pump (aside from a number of automatics developed before 1970, which also included a rear pump for towing and press-starting up purposes).
Continually variable transmission (CVT): Pemanduan yang lebih lancar dengan mengubah nisbah gear secara berterusan tanpa langkah tertentu. Secara tidak langsung, ia meningkatkan efisiensi bahan bakar yang digunakan.
The important thing Section of an automatic gearbox would be the planetary equipment set. It has a sun gear, a Earth copyright with several planet gears, and a ring equipment.
Alternatively, they utilize a torque converter technique, depending on gearbox oil to transfer energy in the enter shaft on the gears. Pcs in the car decide just when gears have to be changed.
Apabila penapis tersebut tersumbat dengan enapan dan serpihan besi di dalam minyak likit, ia secara langsung akan membuatkan pertukaran equipment menjadi tidak lancar semasa dalam pemanduan.
You are able to nonetheless just take Handle oneself, although; many units present the option to select gears manually, possibly using the equipment selector or paddles guiding the steering wheel.
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Setiap jenis gearbox kereta mempunyai kelebihan dan kekurangan tersendiri, bergantung pada keperluan dan gaya pemanduan anda.
Antara kelebihan gear automatik adalah ia tidak memerlukan pemandu untuk menekan klac sambil menukar gear. Ia menjadikan gear automatik lebih mudah untuk digunakan di jalan raya yang sesak serta memberi pemanduan yang lebih lancar.
Minyak gearbox yang kotor biasanya menjadi pekat dan mengandungi habuk besi. Habuk besi ini terhasil daripada geseran antara gigi-gigi equipment yang berlaku setiap kali memandu.
Namun, dari segi penjagaan gearbox jenis automatik pula bukanlah mudah seperti yang gearbox kereta auto disangka. Ini kerana, sistem yang digunakan agak rumit dan memerlukan pemandu untuk menjaga dengan lebih teliti.
Manakala bagi kereta manual pula, anda hanya perlu menukar minyak equipment, mounting dan juga kabel gear.