VI. CONCLUSION & REFLECTIONS

Spring '07 Sum '07 Fall '07 Spring '08 Sum '08 Fall '08 Spring '09 Sum '09

ED2 VPD1 Undergrad TTCStudy

AbroadUndergrad

Graduation

Semester!Full Time

Fall 2004 - Fall 2006

Undergrad

I. PURPOSE

Reflect on VPD1 13G Co-op experience & summarize projects and skills gained

II. STUDENT BACKGROUND INFORMATION

College: University of Michigan

Major/Minor: Mechanical Engineering / German

Graduation Date: May, 2009

Co-op Term: VPD1 May 21st August 17th, 2007

Project: Support VPD1 team through 470L CV stage preparation and 579L AS evaluations

III. OBJECTIVES

Bring a high-energy positive attitude

Apply classroom knowledge to projects

Understand departmental responsiblilities and procedures

Strengthen my desire to have a career in automotive design

Deepen knowledge of vehicle development process Implement the Toyota Way in daily activities

Gain engineering evaluation experience Support VPD1 Kino/Wiper team

Daniel Sheline - TTC VPD1 Kino/Wiper Group

IV. PROJECTS (Continued)

Project Skills Attained

3.

4. Objective Method

- Support VPD1- 3G engineers to reduce their workload -Made copies, illustrations drawings, sections,

and benchmarked vehicles

-Performed other miscellaneous tasks

- Learned how

to

communicate

with suppliers

- Improved my

knowledge of

the functionality

of the 180L

tailgate.

- Gained experience with vehicle hoist, air tools, wheel

changing, scale measurements, force gage, and

claymeasurements.

Tundra

Tailgate

Hinge

Counter-

measure

Description

-Gained

knowledge of

ED1 parts

General

Document

Management

Experienced

company

administrative

programs

Cracked

plastic

Objective

- Find and confirm counter measure for 180L tailgate

issue. Evaluate counter measure ideas and determine

an appropriate solution. Current 180L tailgate hinge

resin ijiwaru over open condition at around 5 cycles.

Counter measure ideas include shimming the hinge,

putting a dimple on the edge, reversing the hinge part,

baking the hinges to relieve stress, and all

combinations of ideas listed.

Plan

- Cycle counter measure ideas until hinge cracks.

Check the hinges every 25 cycles for cracks and

deformation. Record the data from the hinge styles to

determine which solution is best.

Conclusion

- Counter measure hasn't yet ben decided; however, the reverse made hinge

with a dimple provides significant cycle increases with a minimal cost.

180L Hinge

180L Damper

V. CONCLUSION & REFLECTIONS

Ù Ù

Ù Ù

Ù Û

Û Ù

Deepen knowledge of VPD

Gain engineering evaluation experience

Bring a high-energy positive attitude

Implemented the Toyota Way in daily activities

Support VPD1 Kino/Wiper team

Understand departmental responsiblilities and procedures

Apply classroom knowledge to projects Strengthened my desire to have a career in automotive industry

IV. PROJECTS

Project Skills Atained

1

2

Description

-Gained

engineering

evlauation

experience

Static

Hood

Closing

Force

-Improved data

recording

skills.

-Learned the

TS

requirments of

static hood

closing force.

-Learned the

TS

requirments of

static back

door closing

force.

-Increased

knowledge of

competitor

cars

-Improved

Excel graph

and chart

skills.

Static

Back Door

Closing

Force

WO

LH, UP

STPR

RH, UP

STPR

LH, LWR

STPR

RH, LWR

STPR

Static Closing Force vs. Stopper Gap

0

100

200

300

400

500

600

-1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3Gap (mm)

Clo

sin

g F

orc

e (

N)

UPR Stopper

LWR Stopper

UPR+LWR Stopper

Static hood Closing Force

142182 216 230

390445

483524 547 556

610 642 662 667 701 722

390

483

0

100

200

300

400

500

600

700

800

Tribeca Highlander CX-7 CX-9 FX35 Avalon Matrix IS350 RDX RX350 GS450h MDX Escape Versa RAV4 Ridgeline Camry Edge

Sta

tic

Ho

od

Clo

sin

g F

orc

e(N

)

Objective

- Benchmark RX back door static closing

force for 470L worst case tolerance

conditions in a pre-CV evaluation. TS for

static back door closing is 390N.Plan

- Measure initial back door stopper closing gap and static closing force.

Proceed to decrease stopper gap by placing 1.5mm thick washers over the

stoppers and repeat static closing force measurements for stopper gap

distances ranging from 3mm to -1.5mm.

RX 400h

Objective

- Benchmark a varity of vehicles with emphasis on crossovers for use with the 470L project, as well as for

general use with both TTC and TMC to determine the market trend for static hood closing forces. TS for static

hood closing is 400N and a drop height of 200mm. Force

AppliedPlan

- Measure hood static closing force, closing drop height, hood latch height, number

of rubber stoppers, and record whether the hood uses dampers or a prop rod to Conclusion

- Most competitor cars and even some Toyota & Lexus cars have static hood

closing forces above the TS. Cosumers in North America tend to dynamically close

their hoods; therefore, the TS might be out of date with current consumer desires.

>

>

>

Nom

Conclusion

- 470L will require further study. The LWR stoppers have more contribution

to static closing force than the upper stoppers. Ideally both stoppers would

contribute the same amout. This problem could potentially be resolved by

changing the rigidity of the upper stoppers to twice as much as the lower

stoppers.

Approved Approved Checked Prepared Date

8/17/2007

shelined@umich.edu