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  5. Driveability Questionnaire

Driveability Questionnaire

Driveability Questionnaire
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Exit Survey
 
 
Hello,

You are invited to participate in the FEV Driveability Questionnaire. Approximately 20 people will be asked to complete a survey that asks questions about objective and subjective driveability. It will take approximately 30 minutes to complete.

Your participation in this study is completely voluntary. There are no foreseeable risks associated with this project. However, if you feel uncomfortable answering any of the questions, you can skip the question and continue. It is very important for us to learn your opinions.

Your survey responses will be strictly confidential and data from this research will be reported only in the aggregate. Your information will be coded and will remain confidential. If you have questions at any time about the survey or the procedures, you may contact Thomas Wellmann at 248-724-2860 or by email at [email protected].

The survey results will be aggregated and published without attribution in a report that will become available to the responders when completed in 2017. Responders to this survey could use this report to contrast and compare their vehicle rating techniques to others being used in the industry.

Thank you very much for your time and support. Please start by filling out your contact information below then clicking the Next button.
 
 
 
Contact Information
First Name : 
Last Name : 
Phone : 
Email Address : 
 
 
 
About CRC

The Coordinating Research Council (CRC) is a non-profit organization that directs, through committee action, engineering and environmental studies on the interaction between automotive/other mobility equipment and petroleum products. CRC research programs are managed by five technical committees (Advanced/Vehicle/Fuel/Lubricants, Atmospheric Impacts, Emissions, Performance, and Aviation.). CRC is not involved in any way in regulation, nor is CRC involved in the development of hardware or petroleum products. The formal objective of CRC is to encourage and promote the arts and sciences by directing scientific cooperative research to develop the best possible combinations of fuels, lubricants, and the equipment in which they are used, and to afford a means of cooperation with the Government on matters of national or international interest within this field. 

https://crcao.org/
 
 
 
1. What is the main focus for you evaluating driveability? (select all that apply)
 
Engine Development
 
Transmission Development
 
Driveline Development
 
Benchmarking
 
Evaluating Customer Complaints / Satisfaction

 
 
 
1a. Other/Comments:
   
 
 
 
2. Are you using a subjective or objective methodology (or both)? (select all that apply)
 
Subjective (based on or influenced by personal feelings, tastes, or opinions.)
 
Objective (not influenced by personal feelings or opinions in considering and representing facts.)

 
 
 
2a. What factors lead you to choose subjective, objective or both?
   
 
 
 
2b. If Subjective is selected, where do you see the advantages over an objective method (e.g. costs, reliability)?
   
 
 
 
2c. If Objective is selected, Are you using in-house metrics or commercially available tools?
 
In-house Metrics
 
Commercially Available
 
 
 
2d. If Objective is selected, which software package are you using?
   
 
 
 
2e. If Objective is selected, can you adjust and integrate custom metrics easily? Explain.
   
 
 
 
2f. Comments/Suggestions:
   
 
 
 
3. For how long have you been using the current tool / methodology?
 
 
 
3a. Comments/Suggestions:
   
 
 
 
4. Please estimate the engineering hours spent on test preparation (instrumentation).
   
Please estimate the engineering hours spent on test data acquisition.
   
Please estimate the engineering hours spent on data post processing.
   
 
 
 
4a. Comments/Suggestions:
   
 
 
 
5. On average, how many hours do you spend for a standard subjective driveability evaluation per vehicle? 
   
 
 
 
5a. On average, how many vehicles do you evaluate per year? 
   
 
 
 
5b. Comments/Suggestions:
   
 
 
6. Please rate your overall satisfaction with the level of correlation between subjective ratings and objective metrics
Completely Satisfied Very satisfied Fairly Well Satisfied Partly Dissatisfied Very Dissatisfied
Rating
 
 
 
6a. Comments/Suggestions:
   
 
 
7. Please rate your overall satisfaction with the level of correlation between subjective ratings and objective metrics.
Very Important Important Somewhat Important Relatively Unimportant Not Important
Consistent Rating / Repeatability
Ease of Use
Automation of Driving Maneuvers
Easily Interpretable Results
Duration / Time of Evaluation
Flexibility of Usage
Integration of Additional Custom Metrics
Cost
Instant Rating
Limited Preprocessing
"Real Time" Results (minimal post processing)
 
 
 
7a. Comments/Suggestions:
   
 
 
8. How do you rate the capability of the tool you are currently using?
Excellent Good Average Poor Very Poor
Consistent Rating / Repeatability
Ease of Use
Automation of Driving Maneuvers
Easily Interpretable Results
Duration / Time of Evaluation
Flexibility of Usage
Integration of Additional Custom Metrics
Cost
Instant Rating
Limited Preprocessing
"Real Time" Results (minimal post processing)
 
 
 
8a. For metrics listed above that are good, why?
   
 
 
 
8b. For metrics listed above that are poor, why?
   
 
 
 
8c. Comments/Suggestions
   
 
 
 
9. What type of powertrain do you test? (select all that apply)
 
Gasoline
 
Diesel
 
Alternative Fuels
 
Electric / Hybrid Electric

 
 
 
9a. Other/Comments:
   
 
 
 
10. What transmission types do you test? (select all that apply)
 
Manual
 
Automated manual
 
Dual Clutch
 
Automatic
 
CVT

 
 
 
10a. What type of vehicles to you test? (select all that apply)
 
Small Size / Economy Sedan
 
Midsize / Full Size Sedan
 
Sports car
 
SUV
 
Truck
 
Light Duty
 
Heavy Duty
 
Off-road
 
Motorcycle

 
 
 
10b. Other/Comments:
   
 
 
11. What level of importance does each operating mode have in regards to driveability performance?
Very Important Important Somewhat Important Relatively Unimportant Not Important N/A
Idle
Engine Start (planned)
Engine Stop (planned)
Engine Start/Stop (automatic)
Tip in
Tip Out / Back Out
Acceleration
Coast Down
Roll on Stop (as coming to full vehicle stop)
Warm Up Behavior
Very Important Important Somewhat Important Relatively Unimportant Not Important N/A
Gear Change
Constant Speed Part Load
Torque Converter Lockup
Vehicle Surge / Combustion Stability
Shift Busyness / Gear Hunting
CVT / eCVT Rubber Band Feel
Stall (malfunction)
Backfire (malfunction)
Hesitation (malfunction)
Stumble (sudden change in power delivery, malfunction)
 
 
 
1. 11a. Other/Comments:
   
 
 
12. How well can your evaluation tool rate the following conditions/driving maneuvers?
Excellent Good Average Poor Very Poor N/A
Idle
Engine Start (planned)
Engine Stop (planned)
Engine Start/Stop (automatic)
Tip in
Tip Out / Back Out
Acceleration
Coast Down
Roll on Stop (as coming to full vehicle stop)
Warm Up Behavior
Excellent Good Average Poor Very Poor N/A
Gear Change
Constant Speed Part Load
Torque Converter Lockup
Vehicle Surge / Combustion Stability
Shift Busyness / Gear Hunting
CVT / eCVT Rubber Band Feel
Stall (malfunction)
Backfire (malfunction)
Hesitation (malfunction)
Stumble (sudden change in power delivery, malfunction)
 
 
 
12a. Other/Comments:
   
 
 
 
13. For objective ratings, how many measurement locations/sensors are required to rate driveability with your current software?
   
 
 
 
13a. What signals are typically taken for driveability analysis? (select all that apply)
 
Engine Speed
 
Vehicle Speed
 
Vehicle Acceleration
 
Throttle Position
 
Pedal Position
 
Manifold Pressure
 
Mass Airflow
 
Fuel Pulse Width
 
Spark Ignition Timing
 
Exhaust Air Fuel Ratio

 
 
 
13b. Where do you evaluate vehicles for driveability? (select all that apply)
 
Public Road
 
Enclosed Test Track
 
Chassis Dynamometer (full vehicle)
 
Powertrain Dynamometer (powertrain system on test rig)

 
 
 
13c. Other/Comments:
   
 
 
 
14. Could you describe the specific metrics / formulation utilized for objectification of specific driveability aspects as listed in question 13? (do not include if proprietary)
   
 
 
15. How important are the following areas?
Very Important Important Somewhat Important Relatively Unimportant Not Important N/A
Data Management
Sorting Driving Maneuver Category
Excluding Outliers
Presentation of Results
 
 
15a. Does your tool service the following areas or are they done externally to the tool and how would you rate it?
Excellent Good Average Poor Very Poor N/A
Data Management
Sorting Driving Maneuver Category
Excluding Outliers
Presentation of Results
 
 
 
15b. Comments/Suggestions:
   
 
 
 
16. Do you consider the following boundary conditions in your evaluation? (select all that apply)
 
Outside Temperature
 
Air Density (Elevation)
 
Air Humidity
 
Fuel Quality
 
Oil Viscosity
 
Road Quality

 
 
 
2. 16a. If a chassis dyno is used, are any other boundary conditions considered?
   
 
 
 
3. 16b. Other/Comments:
   
 
 
 
17. Do your rating tools also support automated optimization?
 
Yes
 
No
 
 
 
17a. If yes, are you using the automated optimization tool?
 
Yes
 
No
 
 
 
4. 17b. Comments/Suggestions:
   
 
 
 
18. What improvements would you like to see in the methods you are currently using?
   
 
 
 
19. What additional features would you like to see in the tool you are currently using?
   
 
 
20. Please rate your satisfaction with the optimization tool.
Completely Satisfied Very satisfied Fairly Well Satisfied Partly Dissatisfied Very Dissatisfied
Rating
 
 
 
21. General Comments/Suggestions:
   
 
FEV North America, Inc.
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