Air-conditioning control apparatus for automotive vehicles
AssigneeNippondenso Co., Ltd.
InventorsYoshihiko Tsuzuki, Yuzi Hirabayashi, Shinji Shirasaki, Masahiro Matsuyama, Hiroshi Okazaki
Life of this patent
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Abstract
An automobile air-conditioning control apparatus includes a microcomputer which is responsive to the output signals of a compartment temperature sensor for sensing the temperature of the vehicle compartment of an automobile and temperature setting means for setting a desired temperature to be controlled to perform digital computational operations. The position of flow direction changing plate means and the rotational speed of blower motors are automatically controlled in accordance with the command signals from the microcomputer.
Claims4
In an automobile air-conditioning control apparatus including compartment temperature sensor means for sensing the temperature of a vehicle compartment of an automobile, means for supplying temperature-adjusted air into said vehicle compartment to adjust said compartment temperature sensed by said temperature sensor means to a desired temperature for compartment air-conditioning, and shifting means for changing the direction of flow of said temperature-adjusted air blown into said vehicle compartment thereby controlling the air-conditioning of said vehicle compartment, the improvement comprising:
- actuating means for actuating said shifting means to effect change-over from a partial blowing operation for blowing said temperature-adjusted air toward at least one selected occupant to an overall blowing operation for blowing said temperature-adjusted air into the entire interior of said vehicle compartment, and vice versa;
- and
- control means for controlling said acuating means to change the blowing of said temperature-adjusted air to said partial blowing operation when said compartment temperature sensed by said temperature sensor means is out of a range of stable air-conditioning temperatures.
An automobile air-conditioning control apparatus comprising:
- compartment temperature sensor means for sensing the temperature of a vehicle compartment of an automobile;
- temperature setting means or presetting a desired temperature to be controlled;
- analog-to-digital converter means for converting each of a compartment temperature indicative signal from said compartment temperature sensor means and a preset temperature indicative signal from said temperature presetting means to a digital signal;
- microcomputer means responsive to said digital signals from said analog-to-digital converter means for performing corresponding computational operations;
- a plurality of shifting actuator means each responsive to a command signal from said microcomputer means for controlling the position of flow direction changing plate means to effect change-over from a partial blowing operating for blowing said temperature-preset air toward at least one selected occupant to an overall blowing operation for blowing said temperature-preset air into the entire interior of said vehicle compartment, and vice versa;
- and
- motor drive circuit means responsive to another command signal from said microcomputer means for generating a control signal to control the rotational speed of blower motor means,
- said microcomputer means being provided to control said actuator to change the blowing of said temperature-preset air to said partial blowing operating when said compartment temperature sensed by said temperature sensor means is out of a range of stable air-conditioning temperatures.
Dependencies are inferred from the claim text.