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Sensor unit for vehicle air-conditioning systems

  • US 5,234,049 A
  • Filed: 07/24/1992
  • Issued: 08/10/1993
  • Est. Priority Date: 07/31/1991
  • Status: Expired due to Fees
First Claim
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1. A sensor unit for vehicle air-conditioning systems, the said systems comprising devices for controlling the conditions in the vehicle'"'"'s passenger compartment which act with an intensity which is selectively variable in accordance with at least one relevant control signal indicating the ambient conditions outside the vehicle, including:

  • a casing defining an environment to be air-conditioned, constituting a model environment of the passenger compartment of the vehicle,a sensor means located in the said model environment for generating at least one sensor signal indicative of the environmental conditions in the said model environment,energy exchange means located in the said model environment and adapted to be activated selectively in dependence on said at least one sensor signal to effect the air-conditioning of the model environment by means of an energy exchange of the appropriate amount with the model environment, anddetection means for measuring the amount of the energy exchange effected by the energy exchange means to control the conditions of the model environment and for generating a model signal indicating the amount of energy exchange, the model signal being usable to generate said at least one relevant control signal.

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