Week 1 Challenge

1 – What is the full form of OEM ?

Original Equipment Manufacturer

2 – How the Design Responsibility goes in Automotive

OEM -> Tier 1 -> Tier 2, etc.

3 – Name some Tire 4 Supplier and what they Manufacture?

I looked on the Internet, but couldn't find any references to actual Tier-4 suppliers. I assume these would be companies that supply commodities such as sheet metal, fasteners, etc. Perhaps these would be companies such as Alcoa, Rockwell, Timken (in US) and Tata Steel in India.

4 – When was the first Car Made?

1886

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

Wooden Benches

6 – Define 3D reference System?

The 3D reference system is used to determine locations for all points inside and outside the vehicle. The Z Axis measures the height from the ground plane, the X Axis measures the longitudinal distance from the Origin or Front Plane, and the Y Axis measures the transverse distance across the car.

7 – Why 3D reference System is needed ?

To properly design and validate all the designs used to construct the automobiles.

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

The X Plane is the Plane normal to the X Axis. Positive X refers to the region of the car behind the X plane, as measured from the front of the vehicle looking back.

9 – What is “Zero Plan”?

The Zero Plane is a plane where one of the coordinates is 0.

10 – Define Point of origin?

The Point of Origin is the point where all three planes meet.

11 – Where Most OEM Point of Origin keep ?

Most OEM place the Point of Origin on the front bumper, but this is not standard.

12 – Difference between Work Line and Grid Lines ?

Work Lines are lines on individual parts and components. Grid Lines are lines parallel to the X, Y and Z planes, and are fixed in the 3D reference system.

13 – Are Work Line and Grid Lines are inter connected?

No.

14 - What is Body Position?

Body position is the position of a part with respect to the body in a vehicle.

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

Body position

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

The Center Line is the longitudinal axis of the vehicle that divides it into two halves.

17 – Usually Center Line is Placed at _________?

The center of the vehicle, dividing the console in half.

18 – What is Positive Z Direction ?

Positive Z is the direction above the Z Plane

19 – What is Positive Y Direction ?

Positive Y is the direction to the right of the Centerline (as viewed from the perspective of the driver in the driver’s seat facing forward).

20 – What is LHD and RHD?

LHD – Left Hand Drive – the steering wheel is on the left side of the vehicle (negative Y).

RHD – Right Hand Drive – the steering wheel is on the right side of the vehicle (positive Y).

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

Left Hand Side.

22 – Driver in US is in __Y Direction..

Negative

23 – A Indian Cab Driver went to USA and started driving a Car, which side of the Car he will be sitting?

Left.

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

Inboard

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

Inboard

26-The Recliner handle is placed ______side of the seat.

Outboard

27 – Inboard/Outboard is a _______ based system.

THIS IN AN AMBIGUOUS QUESTION!

28 – IB:______, OB _______

Inboard/Outboard

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

Fore

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

Fore

31 – A aft movement of seat is_____ X Movement

Positive

32 – Volume wise which country produce max number of Cars ?

China

33 – Volume wise production please place all OEM in global?

1. Toyota
2. Volkswagen
3. GM
4. Hyundai/Kia
5. Ford

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

Japan

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

1. Maruti Suzuki
2. Tata Motors
3. Mahindra and Mahindra
4. Hyundai
5. Honda

36 – Name Countries which follow LHD Drive ?

USA, Canada, France, Germany, China

37 - Name Countries which follow RHD Drive ?

UK, India, Singapore, Japan

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

Eyellipse refers to the elliptical field of vision for the driver. The OEM must consider the field of vision when designing the vehicle. This is due to regulatory, safety, comfort, and ease-of-use considerations.

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

3.What is E – Point ?

The E-Point refers to the point where the driver’s eye is in the reference system

4.What is P – Point ?

The P-Point refers to the point in the reference system where the driver’s neck swivels from left to right

5.Correlation between E Point and P Point ?

The P-Point is generally 98mm behind the P-point(s).

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

THIS WAS NOT COVERED IN THE VIDEO!

7.What is full form of “SgRP” ?

Seating Reference Point

8.What is H – Point ?

The is where the torso line and the thigh line meet. It’s generally the same as the SgRP.

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

OEMs use SgRP as reference point for seating and other commodities, while Tier 1 and other suppliers use the H-Point as reference for seating.

10.What is heel point ?

The heel point is where the heel meets the floor (BiW)

11.What is Oscar ?

Oscar is the mechanical device used to model the human body when designing the seat.

12.Difference between Oscar and Oscar Templet ?

The Oscar is in 3D, while the Oscar Template is in 2D

12.What is the purpose of Oscar ?

The Oscar aids in the design and testing of the seat to ensure the seat meets all the requirements, without the need to use an actual human for testing.

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

Design H-Point is the H-Point for Oscar, and matches the seat reference point provided by the OEM. The Actual H-Point is the H-Point using the 95% leg size installed in any designated Seating position.

14.What is H-Point Window ?

The range of H-Points mapped out using all the possible seat positions.

15.Type of Oscar ?

Small Women Type, Mid-Sized Man Type, and Large Size Man Type.

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

102.7Kg

17.What is the Importance of H – Point ?

Determines drivers relationship to vehicle controls and safety devices, and thus has a direct bearing on safety, comfort, and functionality of the design.

18.How the tolerance of H – Point Given ?

It is given as a 2D map showing the direction of the H-Point Movement over time.

19.What is D – Point regarding a Seat ?\

The bottom point of the buttocks on the seat.

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

AHP = Accelerator Heel Point. It is the point on Oscar’s shoe on the un-depressed accelerator pedal with foot angle at a minimum of 87-degrees. It is used in seats to establish adequate legroom for the driver.

21.What is Hand Reach Envelop ?

The reaching distance from the driver to controls, for a specific driver population, and with safety restraints employed.

22.Types of Hand Reach Envelop ? And how it is categories ?

Primary DHC -

• Steering Control
• Gearshift Control
• Turn Signal Control
• Ignition Control
• Audible Horn
• Headlamp Control
• Hand Break
• Wiper/Defroster Control

Secondary DHC

• Climate Control
• Radio Control
• Accessory Control

23.What is Back/Cushion Angle ?

The Angle of the back of the seat

24.What is Ischium?

The part of the pelvic bones that bear the weight of sitting

25.What is Tail Burn ?

Pain in the tailbone area caused by sitting for long times in an uncomfortable seat/position

26.How lumber help driver ?

Lumbar support helps the driver avoid back pain.

27.During RFQ what is expected from OEM?

• Seating Reference Point
• Foot Angle
• Knee Angle
• Heel Point
• Hip Point
• Back Angle

1. What is the function of a seat ?

To provide Support, Position, Comfort, and Protection

2. How the seat Support the Occupant ?

The seat supports the occupant in a position conducive to safe operation of the vehicle

3. How the seat Position the Occupant ?

The seat places the occupant in proximity to important vehicle functions and in a location with proper visibility of the surroundings and interior space.

4. How seat provide comfort for the occupant ?

The seat provides adequate cushioning, even cushioning, avoidance of hard spots, support for the lumbar area, and design to avoid tail burn.

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