- At high sun levels motor stall torque with an electronics unit is about 450%
higher than the stall torque of a motor wired direct on the panel, this figure
rises to about 800% at low Sun levels. - The torque increase we see from the electronics powered motor as RPM drops
has the same effect as a constantly variable gear ratio resulting in better
acceleration on initial take off together with improved hill climbing ability.
Considering the advantages offered by the use of an electronics unit, particularly that the
use of electronics will make a poorly designed and constructed car run when otherwise it
would not, there is little wonder that all cars now are now fitted with electronics units.
GRAPH 3 Current consumed in motor losses
CAR SET UP REQUIRED TO OPERATE WITHOUT ELECTRONICS:
For a car to run effectively without an electronics unit what is required?
Firstly some basic data.
- Power is the time rate of doing work. The unit of power is the Watt which is
equal to 1 Joule per second or a force of 1 Newton operating over a distance
of 1 metre in 1 second. For a motor, power is calculated by multiplying