Page 2 - Combined_150_OCR

Distribution - 2 - October 8, 1969

Future plans (tentative) for scoring system include: automatic sensors for
elimination of observer function, high speed printer to display more information and
free typewriter for communications with computer during race, programming computer
for testing and time trial functions, programming computer for self checkout and
troubleshooting..

II. PRESENT PROGRAM TASKS

A. Special Performance Vehicle Instrumentation System - Phase I

A system capable of direct measurement of seven data inputs has been
developed and successfully performed during high speed track tests. The system is
based upon a portable 7 channel FM magnetic tape recorder carried in a sound and
vibration reduction case on board the vehicle. Zero to five volt signals are provided
from sensors located on the vehicle. The following measurement transducers have
been successfully tested:

M Engine RPM

N Engine Manifold Vacuum
W Carburetor Inlet Air Pressure
Wheel or shock Absorber Displacement
5. Wheel Speed
6. Steering Wheel Position
7. Acceleration (3 axis)
8. Vehicle Yaw or Slip Angle
o Water Temperature

o Oil Pressure
11. Brake Lining Temperature

One measurement remains to be tested, propeller shaft torque, which will
complete this phase.

Tentative plans to improve the Phase I system through follow-on funding
include: a repackaging of the electronic power supply and signal conditioning network,
a manual commutator system which will allow transfer of signal recording during
vehicle operation on the track and improved mounting of transducers and support equip­
ment.

III. PROPOSED TASKS

A. Test Vehicle Telemetry System

An IPA has been submitted for development of a PCM telemetry system to
transmit 62 channels of data directly from the test car to a ground station located in the
Mobile Control Center. The data would be recorded on a magnetic tape recorder for