Control method and device for external heater
A control method and heater technology, applied in heating/cooling equipment, transportation and packaging, vehicle parts, etc., can solve problems such as low control efficiency, high energy consumption of air conditioners, and waste of electric energy
- Application Information
AI Technical Summary
Problems solved by technology
 Please see figure 1 , figure 1 A schematic flowchart of a method for controlling an external heater is provided for the embodiment of the present application. Wherein, the control method of the external heater includes:
 S101. When the ambient temperature is lower than the preset ambient temperature threshold, acquire the actual power of the air conditioner of the heating air conditioner on the electric vehicle.
 S102. Detect the current air-conditioning water temperature of the heater and air conditioner on the electric vehicle, and judge that the current air-conditioning water temperature is lower than the preset water temperature threshold. If yes, perform step S103; if not, end the process.
 S103. Determine whether the actual power of the air conditioner is lower than the second preset power threshold, if yes, perform step S104; if not, end the procedure.
 In this embodiment, when the current water temperature of the air conditione...
 As a further optional implementation, the method also includes:
 When the value of the water temperature rise is abnormal, the abnormal data is removed from the value of the water temperature rise to obtain the processed value, and the target working gear of the external heater is determined according to the processed value and the preset working gear comparison table.
 S108 , judging whether there is an abnormality in the change value of the water temperature, if yes, execute steps S112 and S113 ; if not, execute steps S109 to S111 and S113 .
 S109. Acquire the water temperature change time corresponding to the water temperature change data.
 S110. Calculate the water temperature change rate according to the water temperature change time and the water temperature change data.
 S111 , comparing the rate of change of the water temperature with the preset working gear to determine the target working gear of the external heater.
 Please see figure 2 , figure 2 It is a schematic structural diagram of a control device for an external heater provided in an embodiment of the present application. Such as figure 2 As shown, the control unit of the external heater includes:
 The first acquiring unit 210 is used to acquire the actual air-conditioning power of the heating air conditioner on the electric vehicle when the ambient temperature is lower than the preset ambient temperature threshold;
 The first judging unit 220 is used to judge whether the external heater is in the working state according to the actual power of the air conditioner;
 The second judging unit 230 is configured to judge whether the actual power of the air conditioner is greater than the first preset power threshold when the external heater is not in the working state;
 The second acquiring unit 240 is configured to acquire the water temperature change value of the heating air conditioner when...
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