WO2020164422A1

WO2020164422A1 - Control method for vehicle having parking cooler

Info

Publication number: WO2020164422A1
Application number: PCT/CN2020/074347
Authority: WO
Inventors: 张飞; 高保华; 王祯祯; 吕静静; 刘超超
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2019-02-12
Filing date: 2020-02-05
Publication date: 2020-08-20
Also published as: CN110758049A

Abstract

A control method for a vehicle having a parking cooler. The control method comprises: when the vehicle is in a non-traveling condition, determining whether the vehicle starts traveling; and selectively turning off the parking cooler according to the determination result. The control method selectively turns off the parking cooler by determining whether the vehicle is traveling, and turns off the parking cooler if the determination result indicates that the vehicle starts traveling, and keeps the current state of the parking cooler if the determination result does not indicate that the vehicle starts traveling. The invention intends to solve the problem that when an existing vehicle having a parking cooler is traveling, if the parking cooler is operating, it easily causes the refrigerant pressure of the parking cooler to be not uniform, thereby affecting the service life of the parking cooler.

Description

Control method of vehicle with parking air conditioner

Technical field

The invention belongs to the field of vehicle technology, and specifically provides a control method for a vehicle with parking air conditioner.

Background technique

The parking air conditioner refers to the air conditioner used when parking or waiting or resting. The parking air conditioner is connected to the battery of the vehicle. When the driver is waiting or resting, the engine can be turned off and the battery can supply power to the parking air conditioner to make the parking air conditioner. Operation, which can reduce fuel consumption.

In the prior art, the parking air conditioner can also be operated when the vehicle is in a driving condition. However, the parking air conditioner is generally purchased and installed on the vehicle by the driver after the vehicle leaves the factory. The stability of the parking air conditioner is relatively poor. The parking air conditioner will shake when the vehicle is running, especially when the vehicle is running at high speed. Among them, the parking air conditioner will cause uneven distribution of the refrigerant pressure of the parking air conditioner due to shaking, which will easily cause the parking air conditioner to overstress and reduce the service life of the parking air conditioner.

Therefore, the art needs a control method for a vehicle with parking air conditioner to solve the above-mentioned problems.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem of the existing parking air conditioner in the driving process, if the parking air conditioner is running, it is easy to cause uneven refrigerant pressure of the parking air conditioner, which will affect the use of the parking air conditioner. In terms of life, the present invention provides a control method for a vehicle with parking air conditioner. The control method includes: determining whether the vehicle starts to drive when the vehicle is in a non-driving condition; and selecting according to the judgment result Sexually turn off the parking air conditioner.

In the preferred technical solution of the above-mentioned control method, the step of "determining whether the vehicle is started" specifically includes: judging whether the vehicle is displaced; and the step of "selectively turning off the parking air conditioner according to the judgment result" Specifically, it includes: if the vehicle is displaced, turning off the parking air conditioner.

In the preferred technical solution of the above-mentioned control method, the step of "selectively turning off the parking air conditioner according to the judgment result" further includes: if the vehicle is not displaced, maintaining the current state of the parking air conditioner.

In the preferred technical solution of the above-mentioned control method, the step of “determining whether the vehicle starts to drive” specifically includes: judging whether the voltage of the battery of the vehicle is increased; “according to the judgment result, selectively enabling the parking air conditioner The step of "turning off" specifically includes: turning off the parking air conditioner if the voltage of the battery increases.

In the preferred technical solution of the above control method, the step of "selectively turning off the parking air conditioner according to the judgment result" further includes: if the voltage of the battery does not increase, maintaining the current parking air conditioner status.

In the preferred technical solution of the above control method, the step of "determining whether the vehicle starts to drive" specifically includes: judging whether the voltage of the battery of the vehicle is increased and whether the increased value reaches a preset value; "according to the judgment result, The step of "selectively turning off the parking air conditioner" specifically includes: if the voltage of the battery rises and the increase value reaches the preset value, turning off the parking air conditioner.

In the preferred technical solution of the above control method, the step of “selectively turning off the parking air conditioner according to the judgment result” further includes: if the voltage of the battery does not increase, or the voltage of the battery increases but If the increase value does not reach the preset value, the current state of the parking air conditioner is maintained.

In the preferred technical solution of the above-mentioned control method, the step of "determining whether the vehicle starts to drive" specifically includes: judging whether the voltage of the battery of the vehicle is increased and whether the increased value reaches a preset value and the increased value Whether the duration of reaching the preset value reaches the preset time; the step of “selectively turning off the parking air conditioner according to the judgment result” specifically includes: if the voltage of the battery increases and the increased value When the preset value is reached and the duration for the increased value to reach the preset value reaches the preset time, the parking air conditioner is turned off.

In the preferred technical solution of the above control method, the step of “selectively turning off the parking air conditioner according to the judgment result” further includes: if the voltage of the battery does not increase, or the voltage of the battery increases but The increase value does not reach the preset value, or the voltage of the battery increases and the increase value reaches the preset value but the duration for the increase value to reach the preset value does not reach The preset time maintains the current state of the parking air conditioner.

In the preferred technical solution of the above control method, the preset value is 0.3 volts, and the preset time is 3 seconds.

Those skilled in the art can understand that in the preferred technical solution of the present invention, when the vehicle is in a non-driving condition, the parking air conditioner is selectively turned off by judging whether the vehicle starts to travel. Specifically, it can be judged whether the vehicle starts to travel by judging whether the vehicle is displaced. If the vehicle is displaced, the vehicle starts to travel. In order to avoid uneven distribution of the refrigerant pressure of the parking air conditioner during the vehicle travel, this At this time, the parking air conditioner should be turned off; and if the vehicle does not move, the vehicle has not started driving, and the current state of the air conditioner can be maintained. In addition, you can also judge whether the vehicle starts driving by judging whether the battery voltage of the vehicle rises. If the voltage of the battery rises, it means that the engine has started and is charging the battery, which further indicates that the vehicle is starting to drive. If the refrigerant pressure of the parking air conditioner is unevenly distributed in the, the parking air conditioner should be turned off at this time; if the battery voltage does not increase, the vehicle has not started driving, and the current state of the air conditioner can be maintained.

Further, in order to avoid misjudgment due to the fluctuation of the battery voltage, for example, if the voltage rises due to the fluctuation of the battery voltage, it may be misjudged that the vehicle has started driving and the parking air conditioner will be turned off. , Thereby affecting the user experience. For this reason, when the battery voltage rises, it is necessary to further determine whether the rise value of the voltage reaches the preset value. If the rise value reaches the preset value, it means that the vehicle starts driving, and the parking air conditioner needs to be turned off at this time; if If the increase value does not reach the preset value, it does not mean that the vehicle has started driving. At this time, the current state of the parking air conditioner should be maintained. Through this setting, the accuracy of the control method is improved.

Furthermore, in order to avoid misjudgment due to excessive fluctuations in the voltage of the battery, for example, if the fluctuation of the voltage of the battery is too large, and the increase in the voltage reaches the preset value, it may be misjudged. It is judged that the vehicle has started driving and the parking air conditioner is turned off, thereby affecting the user experience. For this reason, when the voltage rise value reaches the preset value, it is necessary to further determine whether the duration of the voltage rise value reaching the preset value reaches the preset time. If the preset time is reached, the vehicle starts driving. The parking air conditioner needs to be turned off. If the preset time is not reached, it does not mean that the vehicle has started driving. At this time, the current state of the parking air conditioner should be maintained. Through this setting, the accuracy of the control method is further improved.

Description of the drawings

Figure 1 is a flow chart of the control method of the present invention;

Figure 2 is a flowchart of the first embodiment of the control method of the present invention;

Figure 3 is a flowchart of the second embodiment of the control method of the present invention;

Figure 4 is a flowchart of the third embodiment of the control method of the present invention;

Fig. 5 is a flowchart of the fourth embodiment of the control method of the present invention.

detailed description

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

According to the background art, if the parking air conditioner is running during the driving of the existing vehicle with parking air conditioner, it is easy to cause uneven refrigerant pressure of the parking air conditioner, which will affect the service life of the parking air conditioner. The present invention provides a method for controlling a vehicle with a parking air conditioner, which aims to turn off the parking air conditioner when the vehicle is running.

Specifically, as shown in FIG. 1, the control method includes: when the vehicle is in a non-driving condition, judging whether the vehicle starts driving; and according to the judgment result, selectively turning off the parking air conditioner. Among them, it can be judged whether the vehicle starts to drive by judging whether the vehicle is displaced, or it can be judged whether the vehicle has started to drive by judging whether the voltage of the vehicle's battery rises, or it can be judged by judging whether the vehicle is vibrating. Starting driving, etc., such adjustments and changes to the specific method for judging whether the vehicle starts driving do not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention. The technical solution of the present invention will be described in detail below in conjunction with specific embodiments.

Example one

As shown in Figure 2, the step of "determining whether the vehicle starts to drive" specifically includes: judging whether the vehicle is displaced, and the step of "selectively turning off the parking air conditioner based on the judgment result" specifically includes: if the vehicle is displaced, turning it off Parking air conditioner; if the vehicle does not move, the current state of the parking air conditioner is maintained. That is, by judging whether the vehicle is displaced, it is judged whether the vehicle has started to travel. If the vehicle is displaced, it means that the vehicle has started to travel. At this time, the parking air conditioner needs to be turned off. If the vehicle is not displaced, the vehicle cannot be started to travel. The current state of the parking air conditioner can be maintained. Among them, the above-mentioned displacement can be the position displacement of the vehicle. A displacement sensor is installed on the body of the vehicle to determine whether the vehicle starts driving by judging whether the position of the vehicle has changed. Of course, the above-mentioned displacement can also be an angular displacement. Angular displacement sensors are installed on the wheels, and the vehicle starts driving by judging whether the wheels are rotating, etc. The adjustment and change of the specific forms of displacement does not deviate from the principle and scope of the present invention, and should be limited to this Within the scope of protection of the invention.

In addition, it should be noted that the above-mentioned turning off the parking air conditioner means that if the parking air conditioner is in the off state, the parking air conditioner is kept in the off state; if the parking air conditioner is in the running state, the parking air conditioner is turned off. The above-mentioned maintaining the current state of the parking air conditioner means that if the current state of the parking air conditioner is off, the parking air conditioner continues to be turned off; if the current state of the parking air conditioner is running, the parking air conditioner continues to operate.

Example two

As shown in Figure 3, the step of "determining whether the vehicle starts to drive" specifically includes: judging whether the voltage of the battery of the vehicle is increased; the step of "selectively turning off the parking air conditioner according to the judgment result" specifically includes: If the voltage rises, the parking air conditioner will be turned off. If the battery voltage has not risen, the current status of the parking air conditioner will be maintained. That is, by judging whether the voltage of the battery rises to determine whether the vehicle starts driving, if the voltage of the battery rises, it means that the engine has started and is charging the battery, which further indicates that the vehicle is about to or has entered a driving mode, and it should be parked at this time. The car air conditioner is turned off, and if the battery voltage does not increase, it does not mean that the vehicle has started driving, and the current state of the parking air conditioner is maintained. Among them, the current voltage Ud of the battery can be compared with the initial voltage Uc of the battery. If the current voltage Ud of the battery is greater than the initial voltage Uc of the battery, it indicates that the voltage of the battery has increased, indicating that the engine has started and is charging the battery. If the vehicle is about to or has entered the driving condition, the parking air conditioner should be turned off at this time, and if the current voltage Ud of the battery is not greater than the initial voltage Uc of the battery, indicating that the voltage of the battery has not increased, it does not mean that the vehicle has started to drive. The current status of the parking air conditioner.

In addition, it should be noted that the above-mentioned initial voltage of the battery refers to the voltage of the battery when the parking air conditioner is powered on, and can also be the voltage of the battery when the engine is turned off. That is, the voltage of the battery can be obtained as the initial voltage of the battery when the engine is turned off, or the voltage of the battery can be obtained as the initial voltage of the battery when the parking air conditioner is powered on.

In addition, it should be noted that the above-mentioned turning off the parking air conditioner means that if the parking air conditioner is turned off, the parking air conditioner is kept off; if the parking air conditioner is in operation, the parking air conditioner is turned off. The above-mentioned maintaining the current state of the parking air conditioner means that if the current state of the parking air conditioner is off, the parking air conditioner continues to be turned off; if the current state of the parking air conditioner is running, the parking air conditioner continues to operate.

Example three

As shown in Figure 4, the step of "determining whether the vehicle starts to drive" specifically includes: judging whether the voltage of the vehicle's battery has increased and whether the increased value reaches a preset value; "according to the judgment result, selectively turning off the parking air conditioner "The steps specifically include: if the battery voltage increases and the increase value reaches the preset value, turn off the parking air conditioner, if the battery voltage does not increase, or the battery voltage increases but the increase value does not reach the preset value , The current status of the parking air conditioner is maintained. Compared with the second embodiment, this embodiment can avoid misjudgment due to the fluctuation of the battery voltage. For example, if the voltage rises due to the fluctuation of the battery voltage, it may be misjudged that the vehicle has been Start driving and turn off the parking air conditioner, thus affecting the user experience. For this reason, when the battery voltage rises, it is necessary to further determine whether the rise value of the voltage reaches the preset value. If the rise value reaches the preset value, it means that the vehicle starts driving, and the parking air conditioner needs to be turned off at this time; if If the increase value does not reach the preset value, it does not mean that the vehicle has started driving. At this time, the current state of the parking air conditioner should be maintained. Among them, the current voltage Ud of the battery can be compared with the initial voltage Uc of the battery. If the current voltage Ud of the battery is greater than the initial voltage Uc of the battery, the voltage increase value △U (△U=Ud-Uc) is further judged, Whether it reaches the preset value, if the increased value △U reaches the preset value, it means that the engine has been started and is charging the battery, which further indicates that the vehicle is about to or has entered the driving mode. At this time, the parking air conditioner should be turned off, and if the If the high value △U does not reach the preset value, it does not mean that the vehicle starts to drive, and the current state of the parking air conditioner is maintained. In addition, if the current voltage Ud of the battery is not greater than the initial voltage Uc of the battery, it indicates that the voltage of the battery has not increased. If the vehicle cannot start driving, the current state of the parking air conditioner is maintained. In a possible situation, the preset value is 0.3 volts, that is, if Ud>Uc, calculate the voltage increase value △U (△U=Ud-Uc), if △U≥0.3V, then the engine The battery has been started and is being charged, which further indicates that the vehicle is about to or has entered driving conditions. At this time, the parking air conditioner should be turned off. If △U<0.3V, it does not mean that the vehicle has started driving, and the current state of the parking air conditioner should be maintained. In addition, if Ud is not greater than Uc, it does not mean that the vehicle starts to travel, so the current state of the parking air conditioner can be maintained. Of course, the preset value is not limited to the above example of 0.3 volts. Those skilled in the art can flexibly set the specific value of the preset value in practical applications, as long as the demarcation point determined by the preset value can determine whether the engine is started.

In addition, it should be noted that the aforementioned turning off the parking air conditioner means that if the parking air conditioner is off, the parking air conditioner is kept off; if the parking air conditioner is running, the parking air conditioner is turned off. The above-mentioned maintaining the current state of the parking air conditioner means that if the current state of the parking air conditioner is off, the parking air conditioner continues to be turned off; if the current state of the parking air conditioner is running, the parking air conditioner continues to operate.

Example four

As shown in Figure 5, the step of "determining whether the vehicle starts driving" specifically includes: judging whether the voltage of the battery of the vehicle is increased and whether the increased value reaches a preset value and whether the duration of the increased value reaches the preset value reaches the preset value. Set the time; the step of “selectively turn off the parking air conditioner according to the judgment result” specifically includes: if the voltage of the battery rises and the rise value reaches the preset value and the duration of the rise value reaches the preset value reaches the preset value Time, turn off the parking air conditioner, if the battery voltage does not increase, or the battery voltage increases but the increase value does not reach the preset value, or the battery voltage increases and the increase value reaches the preset value but the increase value If the duration of reaching the preset value does not reach the preset time, the current state of the parking air conditioner is maintained. Compared with the third embodiment, this embodiment can avoid the misjudgment caused by the excessive fluctuation of the voltage of the battery, for example, if the fluctuation of the voltage of the battery is too large, the increase of the voltage reaches the expected value. If the value is set, it may be misjudged that the vehicle has started driving and the parking air conditioner is turned off, thus affecting the user experience. For this reason, when the voltage rise value reaches the preset value, it is necessary to further determine whether the duration of the voltage rise value reaching the preset value reaches the preset time. If the preset time is reached, the vehicle starts driving. The parking air conditioner needs to be turned off. If the preset time is not reached, it does not mean that the vehicle has started driving. At this time, the current state of the parking air conditioner should be maintained. Among them, the current voltage Ud of the battery can be compared with the initial voltage Uc of the battery. If the current voltage Ud of the battery is greater than the initial voltage Uc of the battery, it is further judged whether the voltage increase value △U (△U=Ud-Uc) Reach the preset value, if the increase value △U reaches the preset value, it is further judged whether the duration t of the increase value △U reaches the preset value reaches the preset time, if the increase value △U reaches the preset value When the time t reaches the preset time, it means that the engine has been started and the battery is being charged. It further indicates that the vehicle is about to or has entered driving mode. At this time, the parking air conditioner should be turned off, and if the increase value △U reaches the preset value, If the time t does not reach the preset time, it cannot indicate that the vehicle has started driving, and the current state of the parking air conditioner is maintained. In addition, if the increase value △U does not reach the preset value, it does not indicate that the vehicle has started driving, then the parking air conditioner is maintained Or, if the current voltage Ud of the battery is not greater than the initial voltage Uc of the battery, it indicates that the voltage of the battery has not risen, nor can it indicate that the vehicle starts to drive, and the current state of the parking air conditioner is maintained. In a possible situation, the preset value is 0.3 volts, and the preset time is 3 seconds, that is, if Ud>Uc, calculate the voltage increase △U (△U=Ud-Uc), if △U ≥0.3V and △U≥0.3V for a duration t≥3 seconds, it indicates that the engine has started and is charging the battery, and further indicates that the vehicle is about to or has entered driving mode. At this time, the parking air conditioner should be turned off, and if t If it is less than 3 seconds, the vehicle cannot start driving, and the current state of the parking air conditioner is maintained. In addition, if △U<0.3 volts, the current state of the parking air conditioner is maintained, or if Ud If it is not greater than Uc, and it does not mean that the vehicle starts driving, the current state of the parking air conditioner can be maintained. Of course, the preset value is not limited to the 0.3 volt in the above example, and the preset time is not limited to the above 3 seconds. Those skilled in the art can flexibly set the preset value and the specific value of the preset time in practical applications, as long as the preset The demarcation point determined by the set value and the preset time can determine whether the engine is started.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, those skilled in the art will readily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or replacements to the relevant technical features, and the technical solutions after these changes or replacements will fall within the protection scope of the present invention.

Claims

A control method for a vehicle with parking air conditioner, characterized in that the control method includes:

When the vehicle is in a non-driving condition, determining whether the vehicle starts to travel;

According to the judgment result, the parking air conditioner is selectively turned off.
The control method according to claim 1, wherein the step of "determining whether the vehicle starts to drive" specifically comprises:

Determine whether the vehicle is displaced;

The steps of "selectively turning off the parking air conditioner according to the judgment result" specifically include:

If the vehicle is displaced, the parking air conditioner is turned off.
The control method according to claim 2, wherein the step of "selectively turning off the parking air conditioner according to the judgment result" further comprises:

If the vehicle is not displaced, the current state of the parking air conditioner is maintained.
The control method according to claim 1, wherein the step of "determining whether the vehicle starts to drive" specifically comprises:

Determine whether the voltage of the battery of the vehicle is increased;

The steps of "selectively turning off the parking air conditioner according to the judgment result" specifically include:

If the voltage of the battery rises, the parking air conditioner is turned off.
The control method according to claim 4, wherein the step of "selectively turning off the parking air conditioner according to the judgment result" further comprises:

If the voltage of the battery does not increase, the current state of the parking air conditioner is maintained.
The control method according to claim 1, wherein the step of "determining whether the vehicle starts to drive" specifically comprises:

Judging whether the voltage of the battery of the vehicle rises and whether the rise value reaches a preset value;

The steps of "selectively turning off the parking air conditioner according to the judgment result" specifically include:

If the voltage of the battery rises and the rise value reaches the preset value, the parking air conditioner is turned off.
7. The control method according to claim 6, wherein the step of "selectively turning off the parking air conditioner according to the judgment result" further comprises:

If the voltage of the battery does not increase, or the voltage of the battery increases but the increase value does not reach the preset value, the current state of the parking air conditioner is maintained.
The control method according to claim 1, wherein the step of "determining whether the vehicle starts to drive" specifically comprises:

Determining whether the voltage of the battery of the vehicle rises and whether the rise value reaches a preset value, and whether the duration of the rise value reaches the preset value reaches a preset time;

The steps of "selectively turning off the parking air conditioner according to the judgment result" specifically include:

If the voltage of the battery increases and the increase value reaches the preset value and the duration of the increase value reaches the preset value reaches the preset time, the parking air conditioner is turned off.
The control method according to claim 8, wherein the step of "selectively turning off the parking air conditioner according to the judgment result" further comprises:

If the voltage of the battery does not increase, or the voltage of the battery increases but the increase value does not reach the preset value, or the voltage of the battery increases and the increase value reaches the preset value If the value is set but the duration for the increased value to reach the preset value does not reach the preset time, the current state of the parking air conditioner is maintained.
The control method according to claim 8, wherein the preset value is 0.3 volts, and the preset time is 3 seconds.