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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

Pending Publication Date: 2022-04-29
GAC AION NEW ENERGY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, it has been found that manual adjustment of the working gear of the heater has low control efficiency, resulting in a large energy consumption of the air conditioner when the heater is turned on, resulting in a waste of electric energy

Method used

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  • Control method and device for external heater
  • Control method and device for external heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 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:

[0050] 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.

[0051] 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.

[0052] 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.

[0053] In this embodiment, when the current water temperature of the air conditione...

Embodiment approach

[0070] As a further optional implementation, the method also includes:

[0071] 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.

[0072] 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 .

[0073] S109. Acquire the water temperature change time corresponding to the water temperature change data.

[0074] S110. Calculate the water temperature change rate according to the water temperature change time and the water temperature change data.

[0075] 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.

...

Embodiment 2

[0083] 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:

[0084] 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;

[0085] 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;

[0086] 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;

[0087] The second acquiring unit 240 is configured to acquire the water temperature change value of the heating air conditioner when...

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Abstract

The invention provides a control method and device for an external heater, and the method comprises the steps: obtaining the actual power of a warm air conditioner on an electric vehicle when the environment temperature is lower than a preset environment temperature threshold value; judging whether the external heater is in a working state according to the actual power of the air conditioner; if not, whether the actual power of the air conditioner is larger than a first preset power threshold value is judged; if the power is larger than the first preset power threshold value, the water temperature change value of the warm air conditioner is obtained; and determining a target working gear of the external heater according to the water temperature change value, and controlling the external heater to work according to the target working gear. Therefore, by implementing the implementation mode, the working gear of the heater can be automatically adjusted, and the control efficiency is high, so that the energy consumption generated by the air conditioner when the heater is started is reduced, and the waste of electric energy is avoided.

Description

technical field [0001] The present application relates to the technical field of automobiles, in particular, to a control method and device for an external heater. Background technique [0002] Turning on the heating and air conditioning of an electric vehicle at low temperature will consume a lot of electric energy. Using an external heater can use other fuels (diesel, etc.) to heat the battery and the passenger compartment to reduce battery energy consumption and increase battery life. Existing external heaters are usually individually controlled, and the interaction with the air conditioner and battery heating is realized by manually adjusting the working gear of the heater. However, it has been found in practice that manual adjustment of the working gear of the heater has low control efficiency, which leads to a large energy consumption of the air conditioner when the heater is turned on, resulting in a waste of electric energy. Contents of the invention [0003] The ...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60H1/22
CPCB60H1/00392B60H1/00735B60H1/00878B60H1/2206B60H2001/224B60H2001/2253Y02T10/88
Inventor 苏昊黎润东柯华波
Owner GAC AION NEW ENERGY AUTOMOBILE CO LTD
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