Propulsion Systems for Electric Vehicles
The Delco-Remy portion of the Heated
Windshield system included the Power Electronics Module shown on the right
below for switching the high current on and off to the windshield, a
control module shown on the left that determined the when the Power Module
switched, and a CS-144 Delcotron with three output terminals to the Power
Module added. Also part of the system was a special windshield with
a electrically conductive film sandwiched within the glass laminate.
The film was a large resistor which when supplied with current from the DR
Power Module heated up the windshield and could melt a 0.1inch of ice off
the surface five times faster than a normal defrost system. The
special windshield was the weak link in the system as it was prone to
cracking, failure of the resistive film and also gave an orange tint to the glass. Due to the
windshield issues this special order item only lasted several years in the
The Power Module was assembled in Plant 11.
Gene Phillips Photo
It appears that the DR Power Module takes the
non rectified AC off the generator and then converted it to something
besides the normal 12 volts DC. There were three transformers in the
unit, which was produced on the south side of the fire wall in Plant 11
near the vacuum department.
ElectriClear was the GM trade name for this
product. Ford called its version QuickClear or sometimes InstaClear.
After the warranty ran out, and if the resistive heating element failed in
the windshield, some owners were reported to have thrown rocks at the
windshield to get the insurance companies to replace the glass as road
damage with the typical low deductable versus having to pay the full cost
of the replacement. This was not a cheap windshield. The
metallic heating element was also known to have also interfered with
electronic equipment being used in the vehicle and automatic toll road