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 Air conditioning control apparatus for automotive vehicles

Details
Inventors: Kojima, Yasufumi; Kamiya, Michihiko; Takemoto, Kazuaki;
Assignee: Nippondenso Co., Ltd. (Kariya, JP)
Primary Examiner: Ostrager; Allen M.
Assistant Examiner:
Attorney, Agent or Firm: Cushman, Darby & Cushman

A control apparatus has input devices, actuators and a single chip microcomputer and is applied to control air conditioning units carried in a cab-over wagon or a one-box car. The thermal loads of the compartment sections to be air conditioned are determined by the microcomputer on the basis of informations from the input devices and calculations in accordance with the control programs written in the microcomputer. The thermal loads of the compartment sections and the desired temperatures thereof are considered in the microcomputer, which outputs various command signals into the actuators so as to actuate front and rear air conditioning units to maintain the compartment sections to be air conditioned at the desired temperatures.

DETAILED DESCRIPTION An object of the present invention is to overcome the above noted drawback.
Another object of the invention is to provide a control apparatus in which it is permitted for a passenger in a first compartment section located on the front side of the vehicle to control an air conditioning of a second compartment section located on the rear side of the automotive vehicle.
To this end, the present invention provides a control apparatus adapted to an air conditioning unit for a passenger compartment of an automotive vehicle consisting of two compartment sections, said air conditioning unit provided with a first air conditioning apparatus located in a first compartment section having variable cooling and heating capacities, a second air conditioning apparatus located in a second compartment section having variable cooling capacity, and a third air conditioning apparatus located in the second compartment section having variable heating capacity, said control apparatus controlling temperatures of the compartment sections and comprising: a first sensing means for measuring an actual temperature in the first compartment section; second sensing means for measuring an actual temperature in the second compartment section; first set means for setting a required temperature in the first compartment section; second set means for setting required temperature in the second compartment section; means deciding the compartment section to be controlled; a microcomputer inputting thereinto at least output signals from the first and second sensing means, the first and second set means and the deciding means and individually operating and outputting a first controlled variable signal by which said actual temperature in the first compartment section is brought close to the required temperature therein and a second controlled variable signal by which said actual temperature in the second compartment section is brought close to the required temperature therein, and means for actuating said first, second and third air conditioning apparatus in accordance with the controlled variable signals from said microcomputer



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