Bajaj DTSi Technology

Digital Twin Spark Ignition (DTS-i)

Bajaj Auto holds an Indian  patent (Patent No.195904) for the DTSi technology. DTS-i is a revolution in the modern motorcycling era in the country. This technology offers phenomenal performance augmentation and was introduced for the first time on the highly successful Pulsar bikes. DTS-i technology is present in the Pulsar 150,180,220F,200s. 

                                              
Currently one spark plug is used in many bikes at one end of the combustion chamber is the conventional practice. The flame front created by the spark takes some time to reach the farthest portion of the combustion chamber. This leads to slower burning of the air-fuel mixture and creates limitations in optimizing the combustion chamber characteristics. 
Two spark plugs at either ends of the combustion chamber leads to change in following parameters

• More Power with faster and better combustion. 
• Better Fuel efficiency.
• Lowers the exhaust gas emissions. 
• Takes less time to start even in the winter season. 

Click here to watch the working explained by Bajaj AUTO

Newnes Mechanical Engineer’s Pocket Book is the one which provides all the basic information regarding mechanical concepts in detail.

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Global NCAP crash analysis of vehicles which are most sold in India.............

Global New Car Assessment Programme (Global NCAP) is a UK company for the promotion of public safety and public health, for the protection and preservation of human life and for the conservation, protection and improvement of the physical and natural environment in particular by:  

• Promoting and conducting independent research and testing programmes that will assess the safety and environmental characteristics of motor vehicles and their comparative performance and disseminating the results to the public. 
• Promoting the development of new car assessment programmes, by providing financial support and technical assistance, and facilitating international co-operation with and between such programmes.

The crash test was performed on the following models

• Maruti Suzuki Alto 800.
• Tata Nano.
• Ford Figo.
• Hyundai i10.
• Volkswagen Polo.

Suzuki-Maruti Alto 800 

• In the 64 km/h NCAP test, the Suzuki-Maruti Alto 800 achieved a zero-star rating for its adult occupant protection. The vehicle structure was rated as unstable, increasing the risk of life-threatening injuries and making the car unsuitable for the fitment of airbags.
• Using the child seats recommended by Suzuki-Maruti, the Alto 800 achieved a two-star rating for child protection.
• The Alto 800 was not able to meet the UN’s minimum safety requirements in the 56km/h crash test.

Tata Nano

• In the 64 km/h NCAP test, the Tata Nano achieved zero stars rating for its adult occupant protection. The vehicle structure was rated as unstable, increasing the risk of life-threatening injuries and making the car unsuitable for the fitment of airbags.
• The car achieved a zero-star rating for its child protection as it was not possible to install child seats in the car.
• The Nano was not able to meet the UN’s minimum safety requirements in the 56km/h crash test.

Frod Figo

1. In the 64 km/h NCAP test, the Ford Figo achieved a zero-star rating for its adult occupant protection. The vehicle structure was rated as stable, but without safety equipment such as airbags, too much of the crash energy was absorbed directly by the occupants.
2. Using the child seats recommended by Ford, the car achieved a two-star rating for its child protection.
3. The Figo was able to meet the UN’s minimum safety requirements in the 56km/h crash test as the driver’s head narrowly avoided direct contact with the steering wheel.

Hyundai i10

1. In the 64km/h NCAP test, the Hyundai i10 achieved a zero-star rating for its adult occupant protection. The vehicle structure was rated as unstable, increasing the risk of life-threatening injuries.
2. Using the child seats recommended by Hyundai, the i10 achieved a one-star rating for child protection. The three year-old dummy indicated a high risk of serious injury.
3. The i10 was not able to meet the UN’s minimum safety requirements in the 56km/h crash test.

Volkswagen Polo

• In the 64km/h NCAP test, the Volkswagen Polo without airbags achieved a zero-star rating for its adult occupant protection. The vehicle structure was stable, but without safety equipment such as airbags, dummy readings indicated a high risk of life-threatening injuries.
• With two airbags (driver and front passenger), the Volkswagen Polo achieved a four-star rating for adult occupant protection in the 64km/h NCAP test. Thanks to the airbags, the protection offered to the driver and passenger head and neck was good.
• Using the child seats recommended by Volkswagen, the Polo achieved a three-star rating for child protection.
• Without airbags, the Polo was not able to meet the UN’s minimum safety requirements in the 56km/h crash test.
• Global NCAP advises consumers to check carefully which version of the Polo they buy.

First Angle and Third angle projection

A projection is defined as an image or a drawing of an object made on a plane.

In technical drawing and computer graphics, a multi view orthographic projection is an illustration technique in which up to six pictures of an object are produced, with each projection plane parallel to one of the coordinate axes of the object.

An Orthographic projection is a parallel projection in which the projectors are parallel to each other and perpendicular to the plane of projection.


Two main types of Orthographic projection are Multi-view projection and Axonometric projection. Multi-view projection is divided in four types:-

1) First Angle Projection
2) Second Angle Projection
3) Third Angle Projection
4) Fourth Angle Projection

In the current session writing is focused on First Angle Projection and Third Angle Projection.

In first-angle projection, the object is conceptually located in quadrant I, i.e. it floats above the Horizontal Plane(H.P) and before the Vertical Plane(V.P).The observer who is theoretically at infinite distance, looks at the object from the front. The rays of sight are parallel to each other and perpendicular to the V.P. The view obtained on the V.P is similar to the front surface of the object and is known as front view. It may be noted that front view shows only the length and height of the object. It does not inticate the width.