Resources Contact Us Home
Air conditioner for vehicle

Image Number 2 for United States Patent #8047274.

An air conditioner for a vehicle includes a main heater for heating air in a vehicle compartment using coolant of an engine of the vehicle as a heat source, and an auxiliary heater for heating air in the vehicle compartment using a heat source other than exhaust heat of the engine. In the air conditioner, a requirement signal for requiring startup of the engine is output when a temperature of the coolant of the engine is determined to be lower than a threshold, and the threshold is adjusted based on an operating state of the auxiliary heater such that as an amount of heat generated by the auxiliary heater increases, the threshold decreases. Accordingly, as the heating capacity of the auxiliary heater is increased, the startup of the engine becomes more difficult.

  Recently Added Patents
Image processing apparatus, image processing method, and program
High voltage circuit for electrical stimulation
Drive apparatus
Optical module for a microlithography objective including holding and supporting devices
Pyridylphenyl compounds for inflammation and immune-related uses
Chemically bonded carbon nanotube-polymer hybrid and nanocomposite thereof
High porosity ceramic honeycomb article containing rare earth oxide and method of manufacturing same
  Randomly Featured Patents
Ellipticized optical lens providing balanced astigmatism
Apparatus and method for making glass fibers
Device for providing enhanced movement of a person's truncal muscles and spine
Nonvolatile semiconductor memory device using trench isolation and manufacturing method thereof
Digital video signal encoder and encoding method
Efficient large-scale processing of column based data encoded structures
Thermally and electrically conducting high index contrast multi-layer mirrors and devices
Continuous forming method and device for a composite structure, in particular a composite structure featuring three-dimensional fabric
Flash tank of two-stage compression heat pump system for heating and cooling
3-aryl-pyrone derivatives