CN-116852934-B - Control method, control device, electronic equipment and storage medium

CN116852934BCN 116852934 BCN116852934 BCN 116852934BCN-116852934-B

Abstract

The invention provides a control method, a control device, electronic equipment and a storage medium, and relates to the technical field of man-machine interaction. The method comprises the steps of firstly, responding to a temperature demand instruction input by a user, starting a high-pressure heater and a compressor successively, then, acquiring the temperature in a cabin, the temperature at the inlet of a warm air core body and the ambient temperature acquired by a sensor, determining the PID control power of the high-pressure heater and the PID control rotating speed of the compressor according to the target temperature of an air conditioner, the temperature in the cabin and the inlet temperature of the warm air core body, and finally, increasing the operation power of the high-pressure heater from the initial operation power to the PID control power and simultaneously increasing the operation rotating speed of the compressor from the initial operation rotating speed to the PID control rotating speed. According to the invention, through sequentially starting HvH and the compressor, the operation power control of HvH and the rotation speed control of the compressor are automatically regulated in real time, so that the temperature control timeliness and the energy conservation are both considered in the operation process of the vehicle-mounted heat pump air conditioning system.

Inventors

ZHAO XU
ZHAO YUHANG
LI CHEN
LI RUIMIN

Assignees

曼德电子电器有限公司

Dates

Publication Date: 20260508
Application Date: 20220328

Claims (9)

1. A control method, characterized in that the method comprises: The method comprises the steps of responding to a temperature demand instruction input by a user, starting a high-pressure heater and a compressor in sequence, wherein the temperature demand instruction carries an air conditioner target temperature set by the user, and the high-pressure heater and the compressor respectively operate at initial operation power and initial operation rotating speed; acquiring the temperature in the cabin, the inlet temperature of the warm air core and the ambient temperature acquired by the sensors, and determining the PID control power of the high-pressure heater and the PID control rotating speed of the compressor according to the target temperature of the air conditioner, the temperature in the cabin, the ambient temperature and the inlet temperature of the warm air core; Raising the operating power of the high-pressure heater from the initial operating power to the PID control power, and simultaneously raising the operating speed of the compressor from the initial operating speed to the PID control speed; acquiring a gear change value of an air conditioner fan, and determining a voltage change value of the air conditioner fan according to the gear change value; Searching a preset voltage change value lookup table according to the voltage change value of the air conditioner fan, and determining a compressor integral control temperature accumulated value corresponding to the voltage change value of the air conditioner fan by combining an interpolation algorithm; Determining a PID control rotational speed of the compressor, comprising: And determining the PID control rotating speed increased by the compressor according to the accumulated value of the integral control temperature of the compressor corresponding to the voltage change value of the air conditioner fan.
2. The method of claim 1, wherein determining the PID control power of the high pressure heater comprises: Determining a compensation temperature of a high-pressure heater and a first target temperature of a warm air core according to the air conditioner target temperature, the temperature in the cabin and the environment temperature; Determining a target temperature of the high-pressure heater according to a first target temperature of the warm air core body and a compensation temperature of the high-pressure heater; Obtaining the inlet temperature of a warm air core body, and determining the PID control temperature of the high-pressure heater at the first moment according to the target temperature of the high-pressure heater and the inlet temperature of the warm air core body; calculating the PID proportion coefficient of the first moment of the high-voltage heater according to the PID control temperature of the first moment of the high-voltage heater; calculating a PID integral coefficient of the high-voltage heater at the first moment according to the PID control temperature of the high-voltage heater at the first moment and the PID control power of the high-voltage heater at the second moment; Calculating the PID differential coefficient of the high-voltage heater at the first moment according to the PID control temperature of the high-voltage heater at the first moment and the PID control temperature of the high-voltage heater at the third moment, wherein the first moment, the second moment and the third moment are gradually decreased on a time axis scale; And determining the PID control power of the high-voltage heater according to the PID proportional coefficient of the first moment of the high-voltage heater, the PID integral coefficient of the first moment and the PID derivative coefficient of the first moment.
3. The method of claim 1, wherein determining the PID control rotational speed of the compressor comprises: Determining a second target temperature of a warm air core according to the temperature in the cabin, the target temperature of the air conditioner and the environmental temperature; Obtaining the inlet temperature of a warm air core body, and determining the PID control temperature of a compressor according to the second target temperature of the warm air core body and the inlet temperature of the warm air core body; Calculating the PID proportionality coefficient of the first moment of the compressor according to the PID control temperature of the compressor; calculating a PID integral coefficient of the compressor at a first moment according to the PID control temperature of the compressor and the PID control power of the compressor at a second moment; Calculating PID differential coefficients of the first moment of the compressor according to the PID control temperature of the compressor and the PID control temperature of the third moment of the compressor, wherein the first moment, the second moment and the third moment are sequentially decreased on a time axis scale; And determining the PID control rotating speed of the compressor according to the PID proportional coefficient of the first moment, the PID integral coefficient of the first moment and the PID differential coefficient of the first moment.
4. The method according to claim 1, wherein the method further comprises: Acquiring low-pressure parameters of an air suction port and high-pressure parameters of an air exhaust port of the compressor at the current moment, and temperature parameters of the air suction port and the air exhaust port; Determining the low pressure change rate of the air suction port, the high pressure change rate of the air exhaust port and the temperature change rate of the air suction port and the air exhaust port according to the low pressure parameter of the air suction port, the high pressure parameter of the air exhaust port and the temperature parameter of the air suction port at the current moment, the low pressure parameter of the air suction port, the high pressure parameter of the air exhaust port at the previous moment, the temperature parameter of the air exhaust port and the corresponding preset change time; When the low pressure change rate, the high pressure change rate or the temperature change rate is smaller than or equal to a first preset threshold value, the rotating speed of the compressor is increased or decreased to the PID control rotating speed; When the low pressure change rate, the high pressure change rate or the temperature change rate is larger than a first preset threshold value, the rotating speed of the compressor maintains the current rotating speed; And when the low pressure change rate, the high pressure change rate and the temperature change rate are larger than respective preset second thresholds, the rotating speed of the compressor is reduced to the initial operating rotating speed according to the preset reducing speed, wherein the second thresholds are larger than the first thresholds.
5. The method according to claim 1, wherein the method further comprises: acquiring a target temperature of a battery pack during heating, and determining the additional power of the high-voltage heater according to the target temperature of the battery pack during heating; searching a preset additional power lookup table according to the additional power of the high-voltage heater, and determining an integral control temperature accumulated value corresponding to the additional power of the high-voltage heater by combining an interpolation algorithm; determining the PID control power of the high pressure heater, comprising: and determining the increased PID control power of the high-voltage heater according to the integral control temperature accumulated value corresponding to the additional power of the high-voltage heater.
6. The method according to claim 1, wherein the method further comprises: if the PID control power of the high-voltage heater is smaller than the initial operation power of the high-voltage heater, the high-voltage heater is controlled to be changed from the operation state to the stop state, and when the PID control power of the high-voltage heater is larger than the initial operation power of the high-voltage heater, the high-voltage heater is controlled to be changed from the stop state to the operation state; and if the PID control rotating speed of the compressor is smaller than the initial running rotating speed of the compressor, controlling the compressor to be changed from the running state to the stop state, and when the PID control rotating speed of the compressor is larger than the initial running rotating speed of the compressor, controlling the compressor to be changed from the stop state to the running state.
7. A control apparatus, characterized in that the apparatus comprises: The response unit is used for responding to a temperature demand instruction input by a user and starting the high-pressure heater and the compressor in sequence, wherein the temperature demand instruction carries an air conditioner target temperature set by the user, and the high-pressure heater and the compressor are operated at initial operation power and initial operation rotating speed respectively; The acquisition unit is used for acquiring the temperature in the cabin, the temperature at the inlet of the warm air core body and the ambient temperature acquired by the sensor, and determining the PID control power of the high-pressure heater and the PID control rotating speed of the compressor according to the target temperature of the air conditioner, the temperature in the cabin, the ambient temperature and the temperature at the inlet of the warm air core body; The execution unit is used for increasing the operation power of the high-pressure heater from the initial operation power to the PID control power and increasing the operation rotating speed of the compressor from the initial operation rotating speed to the PID control rotating speed at the same time; the device comprises a unit, a control unit and a control unit, wherein the unit is used for acquiring a gear change value of an air conditioner fan, determining a voltage change value of the air conditioner fan according to the gear change value, searching a preset voltage change value lookup table according to the voltage change value of the air conditioner fan, and determining a compressor integral control temperature accumulated value corresponding to the voltage change value of the air conditioner fan by combining an interpolation algorithm; the acquisition unit is further used for determining the PID control rotating speed increased by the compressor according to the accumulated value of the integral control temperature of the compressor corresponding to the voltage change value of the air conditioner fan.
8. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; A memory for storing a computer program; A processor for carrying out the method steps of any one of claims 1-6 when executing a program stored on a memory.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any of claims 1-6.

Description

Control method, control device, electronic equipment and storage medium Technical Field The present invention relates to the field of vehicle temperature control technologies, and in particular, to a control method, a control device, an electronic device, and a storage medium. Background Along with the popularization of new energy vehicles, in order to improve the range of the new energy vehicles and reduce the heating energy consumption of the air conditioner, the new energy vehicles are provided with a heat pump air conditioning system, so that the new energy vehicles are a main stream solution for solving the range problem, and the vehicle-mounted heat pump air conditioner can realize the operation corresponding to the optimal mode under different working conditions and meet the functional requirements of different types of the whole vehicle through the switching of multiple modes. Different heat pump architectures make the control logic or execution strategy of the heat pump air conditioner different. In the related art, the control scheme of the existing vehicle-mounted heat pump air conditioner cannot meet the dual requirements of a user on the real-time performance and the energy consumption performance of temperature control. Disclosure of Invention The embodiment of the invention provides a control method, a control device, electronic equipment and a storage medium, which aim to solve the problems in the background technology. In order to solve the technical problems, the invention is realized as follows: in a first aspect, an embodiment of the present invention provides a control method, where the method is applied to an air conditioner heat pump system, and the method includes: the method comprises the steps of responding to a temperature demand instruction input by a user, starting a high-pressure heater and a compressor in sequence, wherein the temperature demand instruction carries an air conditioner target temperature set by the user, and the high-pressure heater and the compressor are operated at initial operation power and initial operation rotating speed respectively; Acquiring the temperature in the cabin, the temperature at the inlet of the warm air core body and the ambient temperature acquired by the sensor, and determining the PID control power of the high-pressure heater and the PID control rotating speed of the compressor according to the target temperature of the air conditioner, the temperature in the cabin, the ambient temperature and the temperature at the inlet of the warm air core body; and (3) increasing the operating power of the high-pressure heater from the initial operating power to the PID control power, and simultaneously increasing the operating rotating speed of the compressor from the initial operating rotating speed to the PID control rotating speed. Optionally, the step of determining the PID control power of the high pressure heater comprises: Determining the compensation temperature of the high-pressure heater and the first target temperature of the warm air core according to the air conditioner target temperature, the temperature in the cabin and the environment temperature; determining the target temperature of the high-pressure heater according to the first target temperature of the warm air core body and the compensation temperature of the high-pressure heater; obtaining the inlet temperature of the warm air core body, and determining the PID control temperature of the high-pressure heater at the first moment according to the target temperature of the high-pressure heater and the inlet temperature of the warm air core body; calculating the PID proportion coefficient of the first moment of the high-pressure heater according to the PID control temperature of the first moment of the high-pressure heater; calculating the PID integral coefficient of the high-voltage heater at the first moment according to the PID control temperature of the high-voltage heater at the first moment and the PID control power of the high-voltage heater at the second moment; Calculating PID differential coefficients of the first moment of the high-voltage heater according to the PID control temperature of the first moment of the high-voltage heater and the PID control temperature of the third moment of the high-voltage heater, wherein the first moment, the second moment and the third moment are gradually decreased on a time axis scale; And determining the PID control power of the high-voltage heater according to the PID proportion coefficient of the first moment of the high-voltage heater, the PID integral coefficient of the first moment and the PID differential coefficient of the first moment. Optionally, the step of determining the PID control rotational speed of the compressor comprises: determining a second target temperature of the warm air core according to the temperature in the cabin, the target temperature of the air conditioner and the environmental temperature; Obtaining the