Search
Types of Transmissions
 2020-08-23   Views: 272

Types of Transmissions



Introduction

If you've driven vehicles or have read about them, you would've come across a term transmission. But, what does it exactly means? Well, simply put, a transmission or a gearbox is a mechanical machine that controls power generated from a vehicle's engine/powertrain and transmits it to the wheels, as and when required. Now, there are various kinds of automotive transmissions and in this article, we will take a brief look at the different types of gearboxes.

1598163956_manual-transmission.jpg
Manual Transmission

A manual transmission or a stick-shift unit is a type of gearbox that requires driver-intervention to shift the gears. The driver has to engage the clutch by pressing/de-pressing the foot pedal and select an appropriate gear ratio by using the gear-selector lever to regulate the torque from the engine to the wheels.
Conventionally, modern cars come with five- or six-speed manual transmissions, depending on the engine capacity and segment. However, earlier cars came with three- or four-speed manuals, while there have been instances of seven-speed manuals as well. The speeds indicate the gear ratio.

1598164006_torque-converter-automatic.jpg
Torque Converter Automatic

An automatic transmission, as the name suggests, is a self-shifting transmission, meaning that the driver doesn't need to manually shift the gears. In this case, a torque converter has the ability to multiply torque even when the output rotational speed is low. This is done by deflecting the fluid coming from the turbine off the stator, while it is locked against a one-way clutch.

Unlike usual fluid coupling, which is incapable of multiplying torque output, a torque converter has a stator, which alters the drive characteristics during high slippage to produce increased torque output. A torque converter gearbox finds its application in large-capacity engines that produce higher torque output. These transmissions are better built and less prone to failure.


1598164116_cvt-automatic.jpg
CVT Automatic

A CVT or a continuously variable transmission (CVT), also known as a pulley transmission or a step-less transmission, is an automatic gearbox that seamlessly changes through a continuous range of gear ratios. A CVT, virtually, has infinite gear ratios that can be continuously altered on-the-fly to offer a seamless driving experience.
Unlike other automatic transmissions, a CVT isn't torque-dependent and uses its infinite gear ratios to transfer power to the wheels. A continuously variable transmission uses four pulleys (cones) in its construction that are connected by rubber belts and dangled on two parallel axles. These cones move up or down and the axles move closer or apart to create infinite ratios.
Modern CVTs come with pre-defined steps (for eg. six-step or seven-step) to control the movement of the axles and pulleys to offer better control to the driver and provide a smooth power delivery.

1598164175_dct-automatic.jpg
DCT Automatic

A DCT or a dual-clutch transmission is a type of an automatic gearbox that uses two separate clutches, each for a set of odd and even gear ratios. The larger outer clutch drives the even-numbered gears, while the smaller inner clutch drives the odd-numbered gears.
Since either of these alternate gear ratios (odd and even) can be pre-selected while being driven in any gear, without interrupting the torque distribution to the wheels, DCTs are the fastest-shifting road car transmissions. DCTs are mainly of two types - wet multi-plate clutches or dry single-plate clutches.
A wet-clutch DCT, which uses oil for cooling, is designed for engines that develop high torque output of 350Nm or more. A dry-clutch DCT is suitable for smaller engines that produce a lower torque output of up to 250Nm. However, dry-clutch DCTs are more fuel efficient as there are no fluid pumping losses.

1598164232_amt.jpg
AMT

Simply put, an AMT is an automated manual transmission, which is also known as an auto gear-shift transmission. It is nothing but a manual gearbox with a hydraulically or electronically controlled actuator, which automatically shifts the gears. The gear transitions depends on the throttle input and the speed of the vehicle.
AMTs are much more affordable than conventional automatic transmissions. These transmissions are developed to offer driving convenience and aren’t really centred towards driving pleasure. And that’s exactly why AMTs are slow-to-react to throttle inputs and induce a pronounced head-nod when the car is driven with a heavy foot. That said, one upside of AMTs is that these are fuel-efficient.
More Tips View All
(26 Tips available)

How to dry out a wet car?       2021-01-06

As the variety of season you cannot but to drive your car for your own need, without thinking of the condition of your car. This is one of the major problem for the car owners that what will they do if their car gone away under water or the totally wet by rain. Our recommendation is, never be worry on this. Just remember, every problem has a soluti... English Bangla

How to deal with auto repair mechanic?       2021-01-14

This topic may look like odd to our visitor or they think that this is kind of stupidity that we don’t think our visitor can deal very well with the mechanic/technician. Believe me; most of your bills are over paid only by your ignorance of presenting the problem to the technician. As a common question of your mind you can ask me what way people ... English Bangla

When is auto repair needed?       2021-01-09

The title may be looks like odd to our visitor, they may think that whenever the car creates problem or the owner feel something like problem, they will took it at the repair shop. We have some suggestion for you; we believe these suggestion or tips can save your money a lot. you know, there are some basic requirement/part/maintenance which can be ... English Bangla

The modern auto repair shop       2021-01-16

The title may look like to our visitor, it is an article on the basic requirements of the Modern Auto repair shop. yes they are exactly to the point. An auto repair shop is a place where a car owner must have to go so many times in his/her life. At the same time, some car owner often avoid to enter in the car repair shop, because of dust and some o... English Bangla

Cars can also get cold in winter       2020-09-21

In the coming winter, along with the cold, there will be occasional rain. Roads are muddy in drizzle. In winter, the amount of dust in the air is high. According to the weather of the country, one has to be more careful about the car in summer than in winter. However, some precautions should be taken to ensure safe driving in winter, said Saiful Os... English Bangla



Car News View All
(39 News available)

Fair Group is to introduce ‘Made in Bangladesh’ Cars With Hyundai Motors       2020-07-28

Local company Fair Group is planning to introduce ‘Made in Bangladesh’ cars within next year through a joint venture with Korean automobile giant Hyundai Motors. Fair Technology Ltd, the automotive wing of Fair Group, has already entered into a strategic partnership with Hyundai Motor Company as the authorised distributor for Hyundai passenger... English Bangla

Reconditioned cars: Importers in serious concerns over the government's plan to stop imports to Bangladesh       2020-09-15

Large part of the demand for private cars in Bangladesh is fulfilled by reconditioned cars. Bangladesh government is planning to stop importing used cars or reconditioned cars from abroad in a few years, said “Barvida”, the organization of used car importers. Meeting with the concerned officials of the Ministry of Industries of Bangladesh on th... English Bangla

Made in Bangladesh Cars only at 8 lakhs coming in this June       2021-05-03

Bangla Cars is going to officially start selling home-made cars from next June if no major mishap occurs due to Corona situation. The company is manufacturing cars in the country with technical assistance from Japan, Indonesia, China and South Korea. Each car will cost from 8 to 40 lakh BDT. There will be a warranty of 5 years or for 1 lakh kilo... English Bangla

Hyundai car factory is in Bangladesh       2021-01-06

Hyundai, a famous Korean automobile brand, is opening a car factory in Bangladesh after Mitsubishi Corporation of Japan. Hyundai Motor Company's only distributor in Bangladesh is “Fair Technology Limited”, signed an agreement with the Bangladesh Hi-Tech Park Authority on Tuesday, January 5 in a five-star hotel in the capital's Gulshan. The comp... English Bangla

Toyota Hybrid Car At TK 11 Lakh       2019-05-03

Toyota’s Fuel efficient Hybrid car is now only at 11 lakhs. (Model Toyota Aqua Hybrid) This one is a reconditioned car and this one is made with synergy driving technology. This one most amazing part is, it can run in battery along with the fuel by which, this is a fuel efficient car. This eco friendly car which is the model of 2013. Same ... English Bangla



Used Cars View All
(2,560 cars available)

Toyota Kluger

Added by: Alauddin Enterprise
From: Basundhara, Dhaka

Brand: Toyota
Engine cc: 2400
KM Run: 110,000
Date: 2021-01-06
Price: 16,00,000
(fixed)


Toyota Fielder

Added by: CAR POINT BD
From: Khulna Sadar, Khulna

Brand: Toyota
Engine cc: 1500
KM Run: 29,600
Date: 2020-10-18
Price: 15,50,000
(negotiable)


Toyota Corolla

Added by: Kabir Car collection
From: Agrabad, Chittagong

Brand: Toyota
Engine cc: 1500
KM Run: 68,000
Date: 2021-02-01
Price: 10,70,000
(negotiable)


Hyundai Tucson

Added by: Prime auto car point
From: Banani, Dhaka

Brand: Hyundai
Engine cc: 2000
KM Run: 36,150
Date: 2020-08-17
Price: 32,00,000
(negotiable)


Toyota Premio

Added by: CAR BAZAR
From: Chandgaon, Chittagong

Brand: Toyota
Engine cc: 1500
KM Run: 52,365
Date: 2021-02-15
Price: 19,50,000
(negotiable)


New Cars View All
(37 cars available)

Toyota Prado

Brand: Toyota
Model: Prado

Engine cc: 2982

NISSAN ALMERA

Brand: Nissan
Model: Almera

Engine cc: 1498

Proton Exora Executive CVT

Brand: Proton
Model: Exora

Engine cc: 1561

Toyota Fortuner

Brand: Toyota
Model: Fortuner

Engine cc: 2694

Proton Persona Standard CVT

Brand: Proton
Model: Persona

Engine cc: 1597