초록 ▼

An automatic HVAC control system having a scheduled control in which the HVAC control variables are regulated in accordance with an empirically determined schedule to provide a desired comfort level in the vehicle, and an adaptive control which modifies the scheduled control when stall or overshoot

An automatic HVAC control system having a scheduled control in which the HVAC control variables are regulated in accordance with an empirically determined schedule to provide a desired comfort level in the vehicle, and an adaptive control which modifies the scheduled control when stall or overshoot conditions occur so that the design performance level of the system is achieved under all conditions.

대표청구항 ▼

In a motor vehicle ventilation system having elements controllable to adjust the heating/cooling capacity of the system, an automatic control for operating the controllable elements to regulate the heating/cooling capacity at an optimal level which brings the actual comfort level in the vehicle into

In a motor vehicle ventilation system having elements controllable to adjust the heating/cooling capacity of the system, an automatic control for operating the controllable elements to regulate the heating/cooling capacity at an optimal level which brings the actual comfort level in the vehicle into agreement with a desired comfort level and thereafter maintains such agreement, the control comprising: means for determining the desired comfort level, the actual comfort level, and a comfort level error indication according to the difference between the desired and actual comfort levels; scheduled control means for operating the controllable elements as a function of the comfort level error indication according to an empirically determined schedule designed to regulate the heating/cooling capacity of the system at said optimal level; and adaptive control means effective when the system heating/cooling capacity level brought about by said scheduled control means significantly deviates from said optimal level, resulting in an uncorrected comfort level error indication, for modifying the scheduled operation of the controllable elements in relation to the comfort level error indication so as to bias the heating/cooling capacity of the system toward said optimal level, thereby adaptively correcting the operation of the controllable elements for variations in the system performance and the heating/cooling requirements of the vehicle which are not accounted for by the scheduled control means.