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
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