System for controlling a vehicle-mounted air conditioner
First Claim
1. A system for controlling an air conditioner mounted in an engine-powered roadway vehicle, comprising means for setting a reference temperature, a first digital computer having a memory directly coupled to a storage battery mounted in said vehicle and a processor for generating reference temperature data for said air conditioner in response to said reference temperature and storing the data in said memory during and after the operation of the vehicle engine, one or more sensors for generating auxiliary data representing the operating conditions of said air conditioner, and a second digital computer having a processor powered by said storage battery via an engine operating key switch and coupled to be responsive to said auxiliary data from said sensors and to said stored reference temperature data from said memory for controlling said air conditioner in accordance with said reference temperature data and said auxiliary data immediately following the operation of said key switch.
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Accused Products
Abstract
A control circuit for a vehicle-mounted air conditioner having plural dampers therein comprises a manual command entry unit for entering command signals to a computer unit. The computer unit includes a first computer constantly powered by a vehicle-mounted storage battery to receive a temperature resetting command signal from the entry unit and a second computer which is powered from the battery through an engine ignition key switch to receive control data from the first computer to control the air conditioner. A plurality of operating parameter sensors also supplies sensed operating parameters to the second computer to permit it to control one or more of the dampers to direct conditioned air to the vehicle compartment. A display unit receives data from the computer unit to provide visual display of the reference temperature and the operating conditions of the air conditioner.
54 Citations
23 Claims
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1. A system for controlling an air conditioner mounted in an engine-powered roadway vehicle, comprising means for setting a reference temperature, a first digital computer having a memory directly coupled to a storage battery mounted in said vehicle and a processor for generating reference temperature data for said air conditioner in response to said reference temperature and storing the data in said memory during and after the operation of the vehicle engine, one or more sensors for generating auxiliary data representing the operating conditions of said air conditioner, and a second digital computer having a processor powered by said storage battery via an engine operating key switch and coupled to be responsive to said auxiliary data from said sensors and to said stored reference temperature data from said memory for controlling said air conditioner in accordance with said reference temperature data and said auxiliary data immediately following the operation of said key switch.
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2. A system for controlling an air conditioner mounted in a roadway vehicle comprising:
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input means for entry of manual command signals for resetting a reference temperature; display means for displaying visual indications; a first digital computer constantly powered by a storage battery mounted in the vehicle and coupled to be responsive to said command signals for generating display data representing said reference temperature and applying the display data to said display means to generate said visual indications and generating temperature control data; a plurality of sensors for respectively detecting operating parameters of said air conditioner; and a second digital computer powered by said storage battery through an ignition key switch of an engine of said vehicle and coupled to be responsive to said temperature control data from said first computer and said operating parameters detected by said sensors for controlling said air conditioner so that the temperature inside the vehicle varies in a direction toward said reference temperature. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification