Week 1 Challenge

1 – What is the full form of OEM ?

OEM means Original equipment manufacturer these are the companies which owns the entire vehicle responsibility , design control of the vehicle.

EX : Lear,Fiat,Adient,Magna,Tata Motors,Maruti Suzuki etc.

2 – How the Design Responsibility goes in Automotive

The Design responsibility of the entire vehicle lies within the oem, but oem may also give the design responsibility of a particular design or part to a tier1 supplier based on the expertise.

For example the seat design of a vehicle can be tier1 supplier like Lear or Adient.

The Design Responsibility goes as shown below.

ORIGINAL EQUIPMENT MANUFACTURER

↓

TIER 1 SUPPLIER

↓

TIER 2 SUPPLIER

3 – Name some Tier 4 Suppliers and what they Manufacture?

Tier 4 suppliers will help the tier 3 and tier2 suppliers in the production of dies, tooling or raw material suppliers.

Supreme Industries:

Supreme Industries Limited is India's leading plastic processing company with seven business divisions. The company has forayed into different types of plastic processing in Injection Moulding, Rotational Moulding (ROTO), Extrusion, Compression Moulding, Blow Moulding etc.

Supreme Industries limited offers wide range of plastic products with a variety of applications in Moulded Furniture, Storage & Material Handling Products, XF Films & Products, Performance Films, Industrial Moulded Products, Protective Packaging Products, Composite Plastic Products, Plastic Piping System & Petrochemicals.

Panache Industries:

Panache Industries is one of the leaders in the global market who believe in using the latest technologies and facilities to manufacture products. With a highly skilled workforce, the company is able to fulfil any requirement of clients at stipulated period.

Based in Mumbai, India, Panache Industries manufacture & exports products like tube and pipe fittings, various types of valves including manifold valves, needle valves and Air Headers & instrumentation accessories in different dimensions and materials ( Stainless Steel, Monel, Hastelloy, Inconel etc.)

4 – When was the first Car Made?

On January 29, 1886, Carl Benz applied for a patent for his “vehicle powered by a gas engine.” The patent – number 37435 – may be regarded as the birth certificate of the automobile. In July 1886 the newspapers reported on the first public outing of the three-wheeled Benz Patent Motor Car, model no. 1.

5 – What kind of Seats are used in the first Car?

The seats in the first car are made up of wood.

6 – Define 3D reference System?

When creating a vehicle, one of the first things you need to establish is the origins and coordinate systems. This is the seed from which the rest of the vehicle grows from and it’s always best to know which direction is up.

Further complications can arise when you’ve got multiple coordinate systems for subsystems used within a vehicle. It is important to know how they are oriented relative to your vehicle system or you may start having engines upside down or transmissions back to front.

What is the origin? The origin is the location at which x, y and z are all zero ({0,0,0}).

But where is the origin? Annoyingly the origin can be anywhere. It is an “arbitrary” point agreed by the designers/engineers it can be front bumper or roof usually.

7 – Why is a 3D reference System is needed ?

Any part in the vehicle is located or positioned by using the 3D reference system which not only positions the part but gives a standard to communicate about location based on x,y and z coordinates.

8 – What is X Plane and in a Car what is positive “x”?

X plane in a car which is going vertical transverse along the length of the car and positive x axis is the rear side of the car.

9 – What is a “Zero Plan”?

The plane of point where one of the plane makes coordinate makes “0”

10 – Define Point of origin?

It is the Intersection of three planes where all coordinates are zero.

11 – Where Most OEM Points of Origin Keep ?

In most of the cases the origin point will be front bumper or roof it will vary from oem to oem.

12 – Difference between Work Line and Grid Lines ?

Grid Lines are the intersection of planes located in 100mm increments parallel to xy,yz,zx planes.Grid lines are basically used to locate and package the objects in a vehicle. Grid lines also refer to bodily lines.Grid lines are provided by OEM’S.

Work lines are located on the individual parts.work lines are given to Tier1 suppliers

13 – Are Work Line and Grid Lines inter connected?

NO work line and Grid line are not interconnected

14 - What is Body Position?

Body Position tells about the positioning of a part in a vehicle w.r.t to the body in 3D reference system.It is also known as In vehicle part.

15 – When a Car comes out of the OEM Yard ,Seat will be at what position?

The seat position will be at body position provided by the OEM.

16 – How is the Centre Line used in terms of Car Design ?

The centre line is the line that divides the entire vehicle into two halves running from front bumper to rear bumper vertically.

17 – Usually the Centre Line is Placed at _________?

Usually the centre line is located at the centre of the vehicle running rom front bumper to rear bumper vertically.

18 – What is Positive Z Direction ?

It is towards the vertically up of the person when he sits on the centre line facing the front of the car.

19 – What is Positive Y Direction ?

It is towards the right of the person when he sits on the centre line facing the front of the car.

20 – What is LHD and RHD?

Based on the driver’s seat the car seating anatomy is divided into LHD (Left Hand Drive) and RHD(Right Hand Drive).

If the driver’s seat is on the right side of the centerline of the person when he sits on the centre line facing the front of the car is called RHD.

If the driver’s seat is on the right side of the centerline of the person when he sits on the centre line facing the front of the car is called LHD.

21 – A Driver driving a Car in the US will be sitting on the side of Car?

He/She will be driving on the left hand of the centerline of the person when he sits on the centre line facing the front of the car.

The cars in the US are LHD.

22 – Drivers in the US are in __Y Direction.

He/She will be driving on the left hand of the centerline of the person when he sits on the centre line facing the front of the car.

The cars in the US are LHD.

As the cars are LHD the driver in the US sits in the Negative Y Direction.

23 – An Indian Cab Driver went to the USA and started driving a Car. Which side of the Car will he be sitting on?

He will be sitting on the left hand side of the car that means towards the left side of centre line when he sits on the centre line facing the front of the car.

24- I opened the Door of my Car and saw my room keys on the centre console , so my keys are _____ against the Door.

Keys are OutBoard to the Door w.r.t to the centre console.

25 – Belt Buckle attached on the _____Side of the Seat.

In RHD cars the Belt Buckle is attached on the right side of the seat.

In LHD cars the Belt Buckle is attached on the left side of the seat.

26-The Recliner handle is placed on the side of the seat.

-The Recliner handle is placed on the right side of the seat.

27 – Inboard/Outboard is a _______ based system.

Inboard/Outboard are based on the centerline of the vehicle system.

2 8 – IB:______, OB _______

IB refers to InBoard.

OB refers to the OutBoard

29 – Going from rear bumper to forward is _____ Movement.

Going from rear bumper to forward is called FORE Movement.

30 – C- Pillar to B – Pillar movement is _______ Movement.

C- Pillar to B – Pillar movement is FORE Movement.

31 – A aft movement of seat is_____ X Movement

A aft movement of seat is POSITIVE X Movement

32 – Volume wise which country produces the maximum number of Cars ?

Volume wise China produces the maximum number of Cars.

33 – Volume wise production please place all OEMs globally?

34 – Which country India will replace in the next 10 year in terms of Volume production ?

China is the country which is going to be replaced by India will replace in next 10 year in term of Volume production

35 - Volume wise production please place all OEM in India?

36 – Name Countries which follow LHD Drive ?

Countries like UK,US,New Zealand countries which follow LHD Drive.

37 - Name Countries which follow RHD Drive ?

India,Japan,South Africa,Cyprus

1.What is Eyellipse and how it important from OEM purpose ?

The Eyellipse refers to the vision of the driver’s Interior and Exterior visibility environment eye while driving,

2.Draw the complete Eyellipse Zone in an OEM environment ?

3.What is E – Point ?

E-point is the Driver’s eye and there are two E-points separated by 65mm for a 95% percentage of the driver’s .

4.What is P – Point ?

P-point is at a distance of 95mm from the midpoint of the two E-points.

5.Correlation between E Point and P Point ?

Both the Epoint and P point are used for the eyellipse calculation.

6.Eyellipse calculation as per E – Point and P – Point ?

7.What is the full form of “SgRP” ?

Seat Reference Point.

8.What is H – Point ?

H point is same as the Seat Reference Point but H point is used for the Tier 1 supplier whereas the SgRP is used by the OEM’s.

9.Difference between “SgRP” and “ H – Point “ ?

H point is same as the Seat Reference Point but H point is used for the Tier 1 supplier whereas the SgRP is used by the OEM’s.

10.What is heel point ?

Heel point means the point which represents the heel of shoe location on the depressed floor covering, when the bottom of shoe is in contact with the undepressed accelerator pedal and the ankle angle is at 87°.

11.What is Oscar ?

Oscar is a machine used to calculate the SgRP (Seat Reference Point) of the seat and a 2D oscar is called Oscar Template and 3D Oscar is called Oscar Machine.

12.Difference between Oscar and Oscar Templet ?

The 2D oscar is called Oscar Template and 3D Oscar is called Oscar Machine.

12.What is the purpose of Oscar ?

Oscar used to define and measure vehicle seating accommodation and will get H point by using an Oscar machine.

13.What is Design H – Point and Actual H - Point?

Design H point is will got by the CAD file and Actual H point will get by Oscar Machine.

14.What is H-Point Window ?

H point window is the entire movement of the H point in the full adjustment of the seat.

15.Type of Oscar ?

Three types of the Oscar Template

1.Small Women Type - 104 LBS

2.Mid Sized Man - 169 LBS

3.Large Size Man - 226 LBS

16.What is the weight (in Kg) of 95 % Oscar ?

Large Size Man - 226 LBS

17.What is the Importance of H – Point ?

H point is used to calculate the Eyellipse of the driver’s eye.

18.How the tolerance of H – Point Given ?

The tolerance of H – Point is will be circular or square shape and the tolerance should not cross the boundary even when the foam deteriorates over a period of time.

19.What is D – Point regarding a Seat ?

D point is the lowest point of the passenger buttock which defines the Meet To Metal.

20.What is the full form of AHP ? Define its usage for seats ?

AHP is the Acceleration Heel Point is the lowest point of the driver’s leg that touches the floor.

21.What is the Hand Reach Envelope ?

Hand Reach Envelope refers to the driver’s reach to the drivers control of the necessary devices in the vehicle

22.Types of Hand Reach Envelope ? And how are categories ?

Two Types of the Hand Reach Envelope are

1.Primary Hand Reach Envelope

2.Secondary Hand Reach Envelope

23.What is Back/Cushion Angle ?

Back Angle defines the angle of the back seat w.r.t to the vertical.

Cushion Angle defines the angle of the cushion seat w.r.t to the horizontal.

24.What is Ischium?

Ischium is the lowest bone of the buttock which comprises the three pelvis.

25.What is Tail Burn ?

Tail Burn is the condition which occurs when a passenger drives the vehicle for a long period of time.The seats should be designed in a way to avoid the Tail Burn Condition.

26.How lumber helps a driver ?

The lumber helps the driver to support the back bone of the passenger.

27.During RFQ what is expected from OEM?

• Seat Reference point.
• Heel Point
• Knee Angle
• Hip Angle
• Back Angle
• Cushion Angle

1.What is the function of a seat ?

• To support the occupant
• To protect the occuport
• To give comfort to occupant
• To position the occupant

2.How does the seat Support the Occupant ?

Seat supports the occupant to sit in the proper location by avoiding the movement in between the wings and Bolster.

3.How the seat Position the Occupant ?

There are three key points or aspects of the positioning of the occupant.

• Hand , arm and Leg room
• Field of vision
• Driver Proximity to hand controls.

4.How seats provide comfort for the occupant ?

• Determining the amount of seat padding
• Locating and avoiding the hard points in the seat
• Determining the angle of seat back and cushion
• Determining the correct amount of thigh and lumbar support.
• Establishing the seat width and height.

5.What is the full form of ILD? And how is it defined ?

ILD refers to Indentation Load Deflection, the load required to compress the 50% of the seat pad to the original thickness.

By this we can understand the firmness of a seat, if a seat is too firm then the occupant can’t be comfortable.