This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Reduction of the Power Consumption of An A/C System
Technical Paper
2003-04-0010
Sector:
Language:
English
Abstract
For an automotive A/C System the influence of technical features
as external compressor capacity control, condenser fan control and
air inlet flap control on the gain in power consumption was
evaluated on a test mule according to the New European Driving
Cycle (NEDC). Comparative tests were run with an optimized AC
system versus a reference system for different climatic conditions
using a matrix taking into account their annual occurrence. In this
way, the annual gain in terms of power consumption was evaluated by
measurements of compressor shaft power and electrical power
consumption.
Connected to that, the feasibility of a compressor torque
estimation algorithm was evaluated by comparison of the estimated
compressor shaft torque to a compressor shaft torque measurement
during test campaigns in a climatic wind tunnel and during road
tests.