CN117360146A - Vehicle height adjusting method and device, electronic equipment and vehicle - Google Patents
Vehicle height adjusting method and device, electronic equipment and vehicle Download PDFInfo
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- CN117360146A CN117360146A CN202210761494.XA CN202210761494A CN117360146A CN 117360146 A CN117360146 A CN 117360146A CN 202210761494 A CN202210761494 A CN 202210761494A CN 117360146 A CN117360146 A CN 117360146A
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- 230000037361 pathway Effects 0.000 description 3
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- 238000007599 discharging Methods 0.000 description 2
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- 239000000725 suspension Substances 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0525—Height adjusting or levelling valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/25—Stroke; Height; Displacement
- B60G2400/252—Stroke; Height; Displacement vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/202—Height or leveling valve for air-springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
Abstract
The disclosure relates to a vehicle body height adjusting method, a device, electronic equipment and a vehicle. The method comprises the following steps: acquiring the height of a target vehicle body; if the height difference between the current vehicle body height and the target vehicle body height is larger than a first height threshold value, determining a target working mode of an electromagnetic valve assembly of the air spring, wherein the target working mode is an inflation mode or a deflation mode; controlling the electromagnetic valve assembly to work according to a target working mode so as to adjust the height of the vehicle body through an air spring; and during the working period of the electromagnetic valve assembly, if the height difference between the height of the vehicle body and the height of the target vehicle body is not larger than the first height threshold value and is larger than the first height threshold value, the working state of the electromagnetic valve assembly is adjusted so as to adjust the speed and/or the direction of the change of the height of the vehicle body. Therefore, the vehicle body height is prevented from deviating from the target vehicle body height due to the fact that excessive gas is filled into the air spring or the excessive gas is discharged from the air spring, and the accuracy of the adjustment of the vehicle body height is improved.
Description
Technical Field
The disclosure relates to the field of vehicles, and in particular relates to a vehicle body height adjusting method and device, electronic equipment and a vehicle.
Background
Automobile technology is increasingly developed, and requirements of people on driving experience are also increasingly high. The vehicle suspension is connected with the wheels and the vehicle body, plays a role in vibration isolation and force transmission, and is one of important systems for determining the dynamic performance of the vehicle. The air suspension has the core component of an air spring, has ideal nonlinear elastic characteristic and can be used for adjusting the height of a vehicle body.
The inflation and deflation of the air spring are controlled by the electromagnetic valve, but because the air inlet and the air outlet of the electromagnetic valve are larger, no matter how sensitive the reaction of the electromagnetic valve is, excessive air can be charged into the air spring or discharged from the air spring, so that the height of the vehicle body deviates from the expected target height, and the adjustment of the height of the vehicle body is not necessarily achieved.
Disclosure of Invention
The purpose of the present disclosure is to provide a vehicle body height adjustment method, a device, an electronic device and a vehicle, so as to improve accuracy of vehicle body height adjustment.
In order to achieve the above object, a first aspect of the present disclosure provides a vehicle body height adjustment method including:
acquiring the height of a target vehicle body;
if the height difference between the current vehicle body height and the target vehicle body height is larger than a first height threshold, determining a target working mode of an electromagnetic valve assembly of the air spring, wherein the target working mode is an inflation mode or a deflation mode, the target working mode is the deflation mode when the current vehicle body height is larger than the target vehicle body height, and the target working mode is the inflation mode when the current vehicle body height is smaller than the target vehicle body height;
Controlling the electromagnetic valve assembly to work according to the target working mode so as to adjust the height of the vehicle body through the air spring;
and during the working period of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is not larger than the first height threshold value and is larger than the first height threshold value, the working state of the electromagnetic valve assembly is adjusted so as to adjust the speed and/or direction of the change of the vehicle body height.
Optionally, the solenoid valve assembly includes an inflation passageway and a deflation passageway;
the said control of the said electromagnetic valve assembly according to the said goal working pattern works, in order to adjust the vehicle body height through the said air spring, including:
determining a path matched with the target working mode in the electromagnetic valve assembly as a target electric path;
controlling the target passage to be in a communication state;
if the height difference is larger than a second height threshold, determining a first power-on/off frequency corresponding to a first speed threshold according to a preset first speed threshold, wherein the second height threshold is larger than the first height threshold;
and controlling the on-off state of the electromagnetic valve assembly according to the first on-off frequency so as to change the height of the automobile body at the first speed threshold value.
Optionally, the controlling the operation of the solenoid valve assembly according to the target operation mode to adjust the height of the vehicle body through the air spring includes:
if the height difference is larger than the first height threshold and smaller than a second height threshold, determining a second power-on and power-off frequency corresponding to the second speed threshold according to a preset second speed threshold, wherein the second speed threshold is smaller than the first speed threshold;
and controlling the on-off of the electromagnetic valve assembly according to the second on-off frequency so as to change the height of the automobile body at the second speed threshold value.
Optionally, the adjusting the working state of the electromagnetic valve assembly to adjust the speed and/or direction of the change of the vehicle height includes:
if the height difference is changed from not greater than the first height threshold value to greater than the first height threshold value, changing a target working mode of the electromagnetic valve assembly;
determining a passage matched with the changed target working mode in the electromagnetic valve assembly as a new target passage;
and controlling the new target passage to be conducted and controlling the previous target passage to be disconnected so as to change the height change direction of the vehicle body.
Optionally, the method further comprises:
determining a third power-off frequency corresponding to a third speed threshold according to the preset third speed threshold, wherein the third speed threshold is smaller than the second speed threshold;
and controlling the on-off of the electromagnetic valve assembly according to the third on-off frequency so as to change the height of the automobile body at the third speed threshold value.
Optionally, the method further comprises:
during the operation of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is greater than the first height threshold value and is not greater than the first height threshold value, controlling the electromagnetic valve assembly to stop working;
and if the height difference when the stop working time of the electromagnetic valve assembly reaches the first preset time is not greater than the first height threshold value, determining that the height adjustment of the vehicle body is completed.
Optionally, the method further comprises:
when the time length for controlling the solenoid valve assembly to stop working reaches a first preset time length, if the height difference between the current vehicle body height and the target vehicle body height is larger than the first height threshold again, determining whether the accumulated vehicle body height adjustment times corresponding to the target vehicle body height reach a preset vehicle body adjustment times threshold;
And if the accumulated vehicle body height adjustment times reach the vehicle body adjustment times threshold, generating air leakage warning information for indicating air leakage of the air spring. A second aspect of the present disclosure provides a vehicle body height adjustment device, the device comprising:
the acquisition module is used for acquiring the height of the target vehicle body;
the first determining module is used for determining a target working mode of the electromagnetic valve assembly of the air spring if the height difference between the current vehicle body height and the target vehicle body height is larger than a first height threshold value, wherein the target working mode is an inflation mode or a deflation mode, the target working mode is the deflation mode when the current vehicle body height is larger than the target vehicle body height, and the target working mode is the inflation mode when the current vehicle body height is smaller than the target vehicle body height;
the control module is used for controlling the electromagnetic valve assembly to work according to the target working mode so as to adjust the height of the vehicle body through the air spring;
and the adjusting module is used for adjusting the working state of the electromagnetic valve assembly to adjust the speed and/or direction of the change of the vehicle height if the height difference between the vehicle height and the target vehicle height is not greater than the first height threshold value and is greater than the first height threshold value during the working period of the electromagnetic valve assembly.
The electromagnetic valve assembly comprises an inflation passage and a deflation passage;
optionally, the control module includes:
the first determining submodule is used for determining a passage matched with the target working mode in the electromagnetic valve assembly as a target passage;
the first control submodule is used for controlling the target passage to be in a communication state;
a second determining submodule, configured to determine, according to a preset first speed threshold, a first power on/off frequency corresponding to the first speed threshold if the height difference is greater than a second height threshold, where the second height threshold is greater than the first height threshold;
and the second control sub-module is used for controlling the on-off of the electromagnetic valve assembly according to the first on-off frequency so as to enable the height of the automobile body to change at the first speed threshold value.
Optionally, the control module includes:
a third determining submodule, configured to determine a second power on-off frequency corresponding to a preset second speed threshold according to the second speed threshold if the height difference is greater than the first height threshold and less than the second height threshold, where the second speed threshold is less than the first speed threshold;
And the third control sub-module is used for controlling the on and off of the electromagnetic valve assembly according to the second on and off frequency so as to change the height of the automobile body at the second speed threshold value.
Optionally, the adjusting module includes:
a processing sub-module for changing a target operating mode of the solenoid valve assembly if the height differential changes from not greater than the first height threshold to greater than the first height threshold;
a fourth determining submodule, configured to determine a new target path in the solenoid valve assembly that matches the changed target operating mode;
and the fourth control sub-module is used for controlling the new target passage to be conducted and controlling the previous target passage to be disconnected so as to change the height change direction of the vehicle body.
Optionally, the fourth control sub-module includes:
a fifth determining submodule, configured to determine a third power failure frequency corresponding to a third speed threshold according to a preset third speed threshold, where the third speed threshold is less than the second speed threshold;
and a fifth control sub-module, configured to control on/off of the electromagnetic valve assembly according to the third on/off frequency, so that the vehicle body height changes at the third speed threshold.
Optionally, the apparatus further comprises:
the control module is further used for controlling the electromagnetic valve assembly to stop working if the height difference between the vehicle body height and the target vehicle body height is greater than the first height threshold value and not greater than the first height threshold value during the working of the electromagnetic valve assembly;
and the second determining module is used for determining that the height adjustment of the vehicle body is completed if the height difference when the stop working time of the electromagnetic valve assembly reaches the first preset time is not greater than the first height threshold value.
Optionally, the apparatus further comprises:
the third determining module is used for determining whether the accumulated vehicle body height adjustment times corresponding to the target vehicle body height reach a preset vehicle body adjustment times threshold value or not if the height difference between the current vehicle body height and the target vehicle body height is larger than the first height threshold value again when the time for controlling the solenoid valve assembly to stop working reaches a first preset time;
and the generation module is used for generating air leakage warning information for indicating air leakage of the air spring if the accumulated vehicle body height adjustment times reach the vehicle body adjustment times threshold value.
A third aspect of the present disclosure provides an electronic device, comprising:
A memory having a computer program stored thereon;
and a controller, the computer program implementing the steps of the method provided in the first aspect of the disclosure when executed by the controller.
A fourth aspect of the present disclosure provides a vehicle comprising the apparatus provided in the second aspect of the present disclosure, or the electronic device provided in the third aspect of the present disclosure.
Through the technical scheme, during the working period of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is not larger than the first height threshold value and is larger than the first height threshold value, the working state of the electromagnetic valve assembly can be adjusted so as to adjust the speed and/or the direction of the change of the vehicle body height. Therefore, the vehicle body height is prevented from deviating from the target vehicle body height due to the fact that excessive gas is filled into the air spring or the excessive gas is discharged from the air spring, and the accuracy of the adjustment of the vehicle body height is improved.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a flow chart of a method of vehicle height adjustment provided by an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic illustration of interactions of a vehicle and a remote intelligent terminal provided in an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic illustration of the connection of a solenoid valve assembly, an air spring, an air compressor, and a muffler provided in an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic illustration of a variation in body height provided by an exemplary embodiment of the present disclosure;
FIG. 5 is a block diagram of a vehicle body height adjustment device provided by an exemplary embodiment of the present disclosure;
fig. 6 is a block diagram of an electronic device provided by an exemplary embodiment of the present disclosure.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
It should be noted that, all actions for acquiring signals, information or data in the present disclosure are performed under the condition of conforming to the corresponding data protection rule policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.
Fig. 1 is a flowchart of a vehicle height adjustment method provided by an exemplary embodiment of the present disclosure. The method can be applied to an air spring air quantity management system arranged on a vehicle. As shown in fig. 1, the method may include S101 to S104.
S101, acquiring the height of the target vehicle body.
For example, a target vehicle height transmitted by a remote intelligent terminal may be obtained. The remote intelligent terminal can be an intelligent terminal such as a mobile phone and a tablet, and a user can issue a target vehicle body height through a remote service App (Application program) in the remote intelligent terminal, and the target vehicle body height can be input by the user. As shown in fig. 2, the remote intelligent terminal may upload the target vehicle height input by the user in the remote service App to the cloud data center of the remote service system and transmit the target vehicle height to the vehicle through the base station, and the vehicle may receive the target vehicle height through the remote communication module, wake up the vehicle (control the power on of the vehicle), and send the target vehicle height to the terminal controller of the vehicle. The end-point controller may then send it to the vehicle's air spring management system for use in adjusting the vehicle body height. According to the target vehicle height sent by the remote intelligent terminal, the height adjustment of the vehicle body is controlled, so that a user can adjust the height of the vehicle body under the condition that the user does not arrive at the scene, and when the vehicle is in danger after parking (such as rainstorm and waterlogging), the user can remotely control the height of the vehicle to protect the vehicle and articles in the vehicle, and the user can be prevented from encountering danger for protecting the vehicle in the danger. The target vehicle body height can be calibrated by the terminal controller of the vehicle according to the vehicle running state (such as vehicle speed, road condition and the like) in the running process of the vehicle, and the calibrated target vehicle body height is sent to the air spring management system.
S102, if the height difference between the current vehicle body height and the target vehicle body height is larger than a first height threshold value, determining a target working mode of the electromagnetic valve assembly of the air spring, wherein the target working mode is an inflation mode or a deflation mode.
When the current vehicle body height is larger than the target vehicle body height, the target working mode is a deflation mode, and when the current vehicle body height is smaller than the target vehicle body height, the target working mode is an inflation mode.
The first height threshold may be preset, for example, to 3mm. The current vehicle height can be obtained in real time through a height sensor arranged on the vehicle, and the target working mode of the electromagnetic valve assembly of the air spring is determined by determining the height difference between the current vehicle height and the target vehicle height. If the height difference is 4mm, the deviation between the current vehicle body height and the target vehicle body height can be determined to be large, and the vehicle body height can be adjusted by controlling the air spring height; if the height difference is 1mm, the deviation between the current vehicle body height and the target vehicle body height can be determined to be very small, and the further adjustment of the vehicle body height has very little effect on changing the vehicle state; and because the air inlet and outlet of the electromagnetic valve assembly are larger, the air quantity of the air inlet and outlet spring is difficult to accurately control, and the height difference is possibly increased by controlling the electromagnetic valve to work, so that the vehicle height can not be further adjusted under the condition that the height difference is smaller than the first height threshold value in order to avoid the waste of vehicle energy and the unexpected increase of the height difference.
The electromagnetic valve assembly is controlled to control the air spring to charge and discharge air so as to adjust the height of the vehicle body. For example, if the height difference is greater than the first height threshold, the target operating mode may be determined to be a deflate mode if the current vehicle height is greater than the target vehicle height, and the vehicle height may be reduced by bleeding a portion of the air in the air spring; if the current vehicle body height is smaller than the target vehicle body height, the target working mode can be determined to be an inflation mode, and the vehicle body height can be increased by increasing the gas in the air spring.
S103, controlling the electromagnetic valve assembly to work according to the target working mode so as to adjust the height of the vehicle body through the air spring.
And S104, during the working period of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is not larger than the first height threshold value and is larger than the first height threshold value, the working state of the electromagnetic valve assembly is adjusted so as to adjust the speed and/or the direction of the change of the vehicle body height.
For example, as described above, because the inlet and outlet ports of the solenoid valve assembly are relatively large, there may be an excess of gas charging or discharging from the air spring no matter how sensitive the solenoid valve is to react, and thus, the vehicle height may vary from no greater than the first height threshold to greater than the first height threshold during operation of the solenoid valve assembly. The speed and/or direction of the change of the height of the vehicle body can be adjusted by adjusting the working state of the electromagnetic valve assembly. For example, if the target working mode is an inflation mode, the height of the vehicle body is controlled to rise, but if excessive gas is filled into the air spring in the rising process (i.e. the height of the vehicle body is excessively raised, the height difference is changed from not greater than the first height threshold value to greater than the first height threshold value), the target working mode can be changed from the inflation mode to a deflation mode, so that the height of the vehicle body is reduced, the excessive rise of the vehicle body is avoided, and the accuracy of the height adjustment of the vehicle body is improved.
Through the technical scheme, during the working period of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is not larger than the first height threshold value and is larger than the first height threshold value, the working state of the electromagnetic valve assembly can be adjusted so as to adjust the speed and/or the direction of the change of the vehicle body height. Therefore, the vehicle body height is prevented from deviating from the target vehicle body height due to the fact that excessive gas is filled into the air spring or the excessive gas is discharged from the air spring, and the accuracy of the adjustment of the vehicle body height is improved.
Alternatively, the solenoid valve assembly may include an inflation passage and a deflation passage.
As shown in fig. 3, the air charge passage may connect the air compressor and the solenoid valve block, and the air discharge passage may connect the muffler and the solenoid valve assembly. If the target working mode of the electromagnetic valve assembly of the air spring is the inflation mode, the inflation passage can be controlled to be conducted, the deflation passage is controlled to be always in a closed state (non-conduction), and in the inflation conduction state, the air compressor can enable air in the atmosphere to flow into the air spring through the electromagnetic valve assembly, so that the height of the air spring is increased, and the height of the vehicle body is increased. If the target working mode of the electromagnetic valve assembly of the air spring is the air release mode, the air release passage can be controlled to be conducted, the air charging passage is controlled to be always in a closed state (non-conducting state), and in the conducting state of the air release passage, the air in the air spring can be discharged to the atmosphere through the muffler, so that the height of the air spring is lowered, and the height of the vehicle body is lowered.
Optionally, in S103, controlling the operation of the solenoid valve assembly according to the target operation mode to adjust the height of the vehicle body through the air spring may include:
determining a passage matched with a target working mode in the electromagnetic valve assembly as a target passage;
the control target passage is in a communicating state;
if the height difference is larger than the second height threshold, determining a first power-on frequency corresponding to the first speed threshold according to a preset first speed threshold;
the solenoid valve assembly is controlled to be energized and de-energized at a first energizing frequency to vary the vehicle body height at a first speed threshold.
Wherein the second height threshold is greater than the first height threshold.
For example, if the target operating mode is an inflation mode, then the inflation pathway may be determined to be a pathway that matches the target operating mode, i.e., a target pathway. If the target operating mode is a bleed mode, then the bleed passage may be determined to be a passage that matches the target operating mode, i.e., a target passage. The relationship between the speed of change in vehicle height and the on-off frequency of the solenoid valve assembly may be pre-calibrated. The air flow of the air spring can be controlled by controlling the frequency of the on-off of the electromagnetic valve assembly. The higher the frequency, the greater the gas flow rate and the faster the vehicle body height change speed. The second height threshold may be preset, for example, may be set to 5mm, and if the current vehicle body height is 7mm lower than the target vehicle body height, the solenoid valve assembly may be controlled to be powered on and off at a first power on and off frequency corresponding to the first speed threshold such that the vehicle body height varies at the first speed threshold.
Optionally, in S103, controlling the operation of the solenoid valve assembly according to the target operation mode to adjust the height of the vehicle body through the air spring may include:
if the height difference is larger than the first height threshold and smaller than the second height threshold, determining a second power on-off frequency corresponding to the second speed threshold according to a preset second speed threshold, wherein the second speed threshold is smaller than the first speed threshold;
and controlling the on-off of the electromagnetic valve assembly according to the second on-off frequency so as to change the height of the automobile body at a second speed threshold.
Illustratively, as described above, the first height threshold is 3mm and the second height threshold is 5mm. If the current vehicle body height is 4mm lower than the target vehicle body height, the solenoid valve assembly can be controlled to be powered on and off according to a second on and off frequency corresponding to the second speed threshold value, so that the vehicle body height changes at the second speed threshold value.
If the current vehicle body height is 7mm lower than the target vehicle body height, the electromagnetic valve assembly can be controlled to be powered on and powered off according to a first power on-off frequency corresponding to a first speed threshold; when the height of the automobile body rises to be 5mm lower than the height of the target automobile body, the on-off frequency of the electromagnetic valve assembly can be changed, and the electromagnetic valve assembly is controlled to be on-off according to the second on-off frequency corresponding to the second speed threshold value.
The second speed threshold is smaller than the first speed threshold, and under the condition that the on/off of the electromagnetic valve assembly is controlled according to the second on/off frequency, the gas flow rate filled in the air spring is relatively smaller, so that the possibility that the vehicle body height deviates from the target vehicle body height can be reduced.
Optionally, in S104, adjusting the operating state of the solenoid valve assembly to adjust the speed and/or direction of the vehicle height change may include:
if the height difference is changed from not more than the first height threshold value to more than the first height threshold value, changing a target working mode of the electromagnetic valve assembly;
determining a passage matched with the changed target working mode in the electromagnetic valve assembly as a new target passage;
and controlling the new target passage to be conducted and controlling the previous target passage to be disconnected so as to change the height change direction of the vehicle body.
For example, as shown in fig. 4, taking the control of the lifting of the vehicle body as an example, the initial vehicle body height is shown as a point a, during the control of the lifting of the vehicle, since the air inlet and outlet of the electromagnetic valve assembly are relatively large, even if the electromagnetic valve assembly is immediately controlled to stop working when the vehicle body height reaches the first lower limit value (the target vehicle body height-the first height threshold value), excessive air still can be filled into the air spring, so that the vehicle body height exceeds the first upper limit value (the target vehicle body height+the first height threshold value) to reach a point b, and when the vehicle body height reaches the first upper limit value, the target working mode of the electromagnetic valve assembly can be changed from the inflation mode to the deflation mode, namely, the target passage is changed from the inflation passage to the deflation passage, so that the vehicle body height is lowered. Therefore, the height of the vehicle body can be adjusted by changing the direction, the deviation of the height of the vehicle body from the expected target height is avoided, and the accuracy of the height adjustment of the vehicle body is improved.
Optionally, in S104, adjusting the operating state of the solenoid valve assembly to adjust the speed and/or direction of the vehicle height change may further include:
determining a third power-off frequency corresponding to a third speed threshold according to the preset third speed threshold, wherein the third speed threshold is smaller than the second speed threshold;
and controlling the on-off of the electromagnetic valve assembly according to the third on-off frequency so as to change the height of the automobile body at a third speed threshold value.
Illustratively, over-inflation and deflation of the air springs may be avoided to some extent by reducing the vehicle height adjustment rate. In general, the first speed threshold is set to be the maximum value of three speed thresholds, so that the speed of adjusting the height of the vehicle body can be ensured, and in the case that the height difference is larger than the first height threshold and smaller than the second height threshold, it can be determined that the difference between the current height of the vehicle body and the target height of the vehicle body is relatively smaller, and the speed of adjusting the height of the vehicle body (adjusting the height of the vehicle body by the second speed threshold) can be properly reduced, so that the possibility of over-charging and over-discharging the air spring is reduced as much as possible. If the air spring is still excessively charged and discharged in the process of controlling the on-off of the electromagnetic valve assembly according to the second on-off frequency and changing the height of the vehicle body by the second speed threshold value, the change of the height of the vehicle body can be reversely controlled by the third speed threshold value. The third speed threshold value can be set in advance, and the third speed threshold value can be set to be the minimum value in the three speed threshold values, so that the air spring can be further prevented from being excessively charged and discharged under the condition that the height of the vehicle body is reversely adjusted.
Further, if the height adjustment direction of the vehicle body is continuously changed for a plurality of times, and the height of the vehicle body is changed by a third speed threshold, after the solenoid valve assembly is controlled to stop working, if the height difference is changed from not more than the first height threshold to more than the first height threshold, the speed of changing the height of the vehicle body can be further reduced. The solenoid valve assembly may be controlled to be energized at a fourth de-energized frequency that is less than the third de-energized frequency to vary the vehicle body height at a fourth speed threshold. Wherein the number of consecutive times may be set to two.
Optionally, the vehicle height adjustment method provided by the present disclosure may further include:
during the operation of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is larger than the first height threshold value and is not larger than the first height threshold value, controlling the electromagnetic valve assembly to stop working;
if the height difference when the working stopping time of the electromagnetic valve assembly reaches the first preset time is not greater than the first height threshold value, the height adjustment of the vehicle body is determined to be completed.
The first preset time period may be preset, for example, may be set to 5s. Because the inlet and outlet of the electromagnetic valve assembly are larger, when the electromagnetic valve is controlled to be closed, partial gas can be still filled into the air spring or discharged from the air spring, so that whether the height of the vehicle body is required to be continuously adjusted under the condition of stability can be determined through the height difference of the first preset time length.
If the height difference when the stop working time of the electromagnetic valve assembly reaches the first preset time is not greater than the first height threshold, the height difference can be determined to be stable within the first height threshold, the electromagnetic valve can be controlled to stop working, and the height adjustment of the vehicle body is completed. The user can be prompted to successfully adjust the vehicle height by generating prompt information for prompting the user that the vehicle height is successfully adjusted. Taking a remote intelligent terminal as a mobile phone as an example, prompt information such as 'successful adjustment of the height of a car body' can be displayed on a display screen of the mobile phone. Alternatively, the above information can be voice broadcast through a speaker set in the mobile phone, so as to prompt the user. And the vehicle can be controlled to flameout after the prompt information is sent, and the remote control is ended, so that the waste of vehicle energy is avoided.
If the height difference when the working time of the solenoid valve assembly is stopped is greater than the first height threshold value, the air in the air spring can be determined to be over-charged or over-discharged, and at the moment, the working state of the solenoid valve assembly can be adjusted to adjust the height change speed and/or direction of the vehicle body, so that the height of the vehicle body can be adjusted according to the target height of the vehicle body.
Optionally, the vehicle height adjustment method provided by the present disclosure may further include:
when the time length for controlling the solenoid valve assembly to stop working reaches a first preset time length, if the height difference between the current vehicle body height and the target vehicle body height is larger than a first height threshold value again, determining whether the accumulated vehicle body height adjustment times corresponding to the target vehicle body height reach a preset vehicle body adjustment times threshold value or not;
and if the accumulated vehicle body height adjustment times reach the threshold value of the vehicle body adjustment times, generating air leakage warning information for indicating air leakage of the air spring.
For example, the threshold value of the number of times of vehicle body adjustment may be set in advance, for example, may be set to 10 times. If the accumulated vehicle body height adjustment times corresponding to the target vehicle body height reach the vehicle body adjustment times threshold, it can be determined that the air spring leakage can be determined by repeated vehicle body height adjustment when the time length for stopping the electromagnetic valve assembly still cannot reach the first preset time length. The air spring air leakage can be prompted by generating air leakage warning information for indicating the air spring air leakage. Taking a remote intelligent terminal as an example of a mobile phone, the air leakage warning information such as air spring air leakage, please repair as soon as possible can be displayed on a mobile phone display screen. Alternatively, the above information can be voice broadcast through a speaker set in the mobile phone, so as to prompt the user. And can control the vehicle to flameout after sending the above-mentioned gas leakage warning information, end remote control, in order to avoid wasting the vehicle energy.
Optionally, when acquiring the current vehicle height, the vehicle height adjusting method provided by the present disclosure may further include:
in response to an obstacle being present around the vehicle and the obstacle affecting the vehicle height adjustment, obstacle warning information is generated indicating the presence of the obstacle around the vehicle.
For example, environmental information around the vehicle may be acquired by a radar system and a vehicle camera as shown in fig. 1 to determine whether an obstacle exists around the vehicle. Taking the example that the obstacle is located above the vehicle, if the distance between the obstacle and the vehicle is 10cm and the current vehicle body height is 7mm lower than the target vehicle body height, it can be determined that the obstacle does not affect the vehicle body height adjustment. For another example, if the obstacle is 5mm from the vehicle and the current vehicle body height is 7mm below the target vehicle body height, then it may be determined that the obstacle affects the vehicle body height adjustment. The user may be prompted that the obstacle affects the height adjustment by generating obstacle warning information indicating that an obstacle is present around the vehicle. Taking a remote intelligent terminal as an example of a mobile phone, obstacle warning information such as 'the influence of an obstacle on the height adjustment of a vehicle body' can be displayed on a display screen of the mobile phone, and collected obstacle image information can be sent to the mobile phone. Alternatively, the above information can be voice broadcast through a speaker set in the mobile phone, so as to prompt the user. And can control the vehicle to flameout after sending the above-mentioned obstacle warning information, end remote control, in order to avoid wasting vehicle energy.
Based on the same inventive concept, the present disclosure also provides a vehicle body height adjusting device. Fig. 5 is a block diagram of a vehicle body height adjusting device provided in an exemplary embodiment of the present disclosure. Referring to fig. 5, the body height adjusting apparatus 400 may include:
an obtaining module 401, configured to obtain a target vehicle height;
a first determining module 402, configured to determine, if a height difference between a current vehicle body height and the target vehicle body height is greater than a first height threshold, a target working mode of a solenoid valve assembly of an air spring, where the target working mode is an inflation mode or a deflation mode, where the target working mode is the deflation mode when the current vehicle body height is greater than the target vehicle body height, and the target working mode is the inflation mode when the current vehicle body height is less than the target vehicle body height;
a control module 403, configured to control the operation of the electromagnetic valve assembly according to the target operation mode, so as to adjust the height of the vehicle body through the air spring;
and the adjusting module 404 is configured to adjust the operating state of the electromagnetic valve assembly to adjust the speed and/or direction of the change in vehicle height if the height difference between the vehicle height and the target vehicle height is not greater than the first height threshold and is greater than the first height threshold during the operation of the electromagnetic valve assembly.
Through the technical scheme, during the working period of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is not larger than the first height threshold value and is larger than the first height threshold value, the working state of the electromagnetic valve assembly can be adjusted so as to adjust the speed and/or the direction of the change of the vehicle body height. Therefore, the vehicle body height is prevented from deviating from the target vehicle body height due to the fact that excessive gas is filled into the air spring or the excessive gas is discharged from the air spring, and the accuracy of the adjustment of the vehicle body height is improved.
The electromagnetic valve assembly comprises an inflation passage and a deflation passage;
optionally, the control module 403 includes:
the first determining submodule is used for determining a passage matched with the target working mode in the electromagnetic valve assembly as a target passage;
the first control submodule is used for controlling the target passage to be in a communication state;
a second determining submodule, configured to determine, according to a preset first speed threshold, a first power on/off frequency corresponding to the first speed threshold if the height difference is greater than a second height threshold, where the second height threshold is greater than the first height threshold;
and the second control sub-module is used for controlling the on-off of the electromagnetic valve assembly according to the first on-off frequency so as to enable the height of the automobile body to change at the first speed threshold value.
Optionally, the control module 403 includes:
a third determining submodule, configured to determine a second power on-off frequency corresponding to a preset second speed threshold according to the second speed threshold if the height difference is greater than the first height threshold and less than the second height threshold, where the second speed threshold is less than the first speed threshold;
and the third control sub-module is used for controlling the on and off of the electromagnetic valve assembly according to the second on and off frequency so as to change the height of the automobile body at the second speed threshold value.
Optionally, the adjusting module 404 includes:
a processing sub-module for changing a target operating mode of the solenoid valve assembly if the height differential changes from not greater than the first height threshold to greater than the first height threshold;
a fourth determining submodule, configured to determine a new target path in the solenoid valve assembly that matches the changed target operating mode;
and the fourth control sub-module is used for controlling the new target passage to be conducted and controlling the previous target passage to be disconnected so as to change the height change direction of the vehicle body.
Optionally, the fourth control sub-module includes:
A fifth determining submodule, configured to determine a third power failure frequency corresponding to a third speed threshold according to a preset third speed threshold, where the third speed threshold is less than the second speed threshold;
and a fifth control sub-module, configured to control on/off of the electromagnetic valve assembly according to the third on/off frequency, so that the vehicle body height changes at the third speed threshold.
Optionally, the apparatus 400 further includes:
the control module 403 is further configured to control, during operation of the solenoid valve assembly, the solenoid valve assembly to stop operating if a vehicle height varies from a height difference from the target vehicle height to not more than the first height threshold;
and the second determining module is used for determining that the height adjustment of the vehicle body is completed if the height difference when the stop working time of the electromagnetic valve assembly reaches the first preset time is not greater than the first height threshold value.
Optionally, the apparatus 400 further includes:
the third determining module is used for determining whether the accumulated vehicle body height adjustment times corresponding to the target vehicle body height reach a preset vehicle body adjustment times threshold value or not if the height difference between the current vehicle body height and the target vehicle body height is larger than the first height threshold value again when the time for controlling the solenoid valve assembly to stop working reaches a first preset time;
And the generation module is used for generating air leakage warning information for indicating air leakage of the air spring if the accumulated vehicle body height adjustment times reach the vehicle body adjustment times threshold value.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 6 is a block diagram of an electronic device 700, according to an example embodiment. As shown in fig. 6, the electronic device 700 may include: a processor 701, a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input/output (I/O) interface 704, and a communication component 705.
The processor 701 is configured to control the overall operation of the electronic device 700 to perform all or part of the steps in the above-described vehicle body height adjustment method. The memory 702 is used to store various types of data to support operation on the electronic device 700, which may include, for example, instructions for any application or method operating on the electronic device 700, as well as application-related data, such as contact data, messages sent and received, pictures, audio, video, and so forth. The Memory 702 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia component 703 can include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 702 or transmitted through the communication component 705. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 704 provides an interface between the processor 701 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or a combination of more of them, is not limited herein. The corresponding communication component 705 may thus comprise: wi-Fi module, bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic device 700 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated ASIC), digital signal processor (Digital Signal Processor, abbreviated DSP), digital signal processing device (Digital Signal Processing Device, abbreviated DSPD), programmable logic device (Programmable Logic Device, abbreviated PLD), field programmable gate array (Field Programmable Gate Array, abbreviated FPGA), controller, microcontroller, microprocessor, or other electronic components for performing the vehicle body height adjustment method described above.
In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the vehicle height adjustment method described above. For example, the computer readable storage medium may be the memory 702 including program instructions described above, which are executable by the processor 701 of the electronic device 700 to perform the vehicle body height adjustment method described above.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described vehicle body height adjustment method when executed by the programmable apparatus.
The present disclosure also provides a vehicle including the body height adjustment device 400 provided by the present disclosure, or the present disclosure provides the electronic apparatus 700.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A vehicle body height adjustment method, characterized by comprising:
acquiring the height of a target vehicle body;
if the height difference between the current vehicle body height and the target vehicle body height is larger than a first height threshold, determining a target working mode of an electromagnetic valve assembly of the air spring, wherein the target working mode is an inflation mode or a deflation mode, the target working mode is the deflation mode when the current vehicle body height is larger than the target vehicle body height, and the target working mode is the inflation mode when the current vehicle body height is smaller than the target vehicle body height;
Controlling the electromagnetic valve assembly to work according to the target working mode so as to adjust the height of the vehicle body through the air spring;
and during the working period of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is not larger than the first height threshold value and is larger than the first height threshold value, the working state of the electromagnetic valve assembly is adjusted so as to adjust the speed and/or direction of the change of the vehicle body height.
2. The method of claim 1, wherein the solenoid valve assembly includes an inflation passage and a deflation passage;
the said control of the said electromagnetic valve assembly according to the said goal working pattern works, in order to adjust the vehicle body height through the said air spring, including:
determining a passage matched with the target working mode in the electromagnetic valve assembly as a target passage;
controlling the target passage to be in a communication state;
if the height difference is larger than a second height threshold, determining a first power-on/off frequency corresponding to a first speed threshold according to a preset first speed threshold, wherein the second height threshold is larger than the first height threshold;
and controlling the on-off state of the electromagnetic valve assembly according to the first on-off frequency so as to change the height of the automobile body at the first speed threshold value.
3. The method of claim 2, wherein said controlling operation of said solenoid valve assembly in accordance with said target operating mode to adjust body height via said air spring comprises:
if the height difference is larger than the first height threshold and smaller than a second height threshold, determining a second power-on and power-off frequency corresponding to the second speed threshold according to a preset second speed threshold, wherein the second speed threshold is smaller than the first speed threshold;
and controlling the on-off of the electromagnetic valve assembly according to the second on-off frequency so as to change the height of the automobile body at the second speed threshold value.
4. A method according to claim 3, wherein said adjusting the operating state of the solenoid valve assembly to adjust the speed and/or direction of the vehicle height variation comprises:
if the height difference is changed from not greater than the first height threshold value to greater than the first height threshold value, changing a target working mode of the electromagnetic valve assembly;
determining a passage matched with the changed target working mode in the electromagnetic valve assembly as a new target passage;
and controlling the new target passage to be conducted and controlling the previous target passage to be disconnected so as to change the height change direction of the vehicle body.
5. The method according to claim 4, wherein the method further comprises:
determining a third power-off frequency corresponding to a third speed threshold according to the preset third speed threshold, wherein the third speed threshold is smaller than the second speed threshold;
and controlling the on-off of the electromagnetic valve assembly according to the third on-off frequency so as to change the height of the automobile body at the third speed threshold value.
6. The method according to claim 1, characterized in that the method further comprises:
during the operation of the electromagnetic valve assembly, if the height difference between the vehicle body height and the target vehicle body height is greater than the first height threshold value and is not greater than the first height threshold value, controlling the electromagnetic valve assembly to stop working;
and if the height difference when the stop working time of the electromagnetic valve assembly reaches the first preset time is not greater than the first height threshold value, determining that the height adjustment of the vehicle body is completed.
7. The method of claim 6, wherein the method further comprises:
when the time length for controlling the solenoid valve assembly to stop working reaches a first preset time length, if the height difference between the current vehicle body height and the target vehicle body height is larger than the first height threshold again, determining whether the accumulated vehicle body height adjustment times corresponding to the target vehicle body height reach a preset vehicle body adjustment times threshold;
And if the accumulated vehicle body height adjustment times reach the vehicle body adjustment times threshold, generating air leakage warning information for indicating air leakage of the air spring.
8. A vehicle body height adjustment device, characterized in that the device comprises:
the acquisition module is used for acquiring the height of the target vehicle body;
the first determining module is used for determining a target working mode of the electromagnetic valve assembly of the air spring if the height difference between the current vehicle body height and the target vehicle body height is larger than a first height threshold value, wherein the target working mode is an inflation mode or a deflation mode, the target working mode is the deflation mode when the current vehicle body height is larger than the target vehicle body height, and the target working mode is the inflation mode when the current vehicle body height is smaller than the target vehicle body height;
the control module is used for controlling the electromagnetic valve assembly to work according to the target working mode so as to adjust the height of the vehicle body through the air spring;
and the adjusting module is used for adjusting the working state of the electromagnetic valve assembly to adjust the speed and/or direction of the change of the vehicle height if the height difference between the vehicle height and the target vehicle height is not greater than the first height threshold value and is greater than the first height threshold value during the working period of the electromagnetic valve assembly.
9. An electronic device, comprising:
a memory having a computer program stored thereon;
a controller, the computer program implementing the steps of the method according to any of claims 1 to 7 when executed by the controller.
10. A vehicle comprising the apparatus of claim 8, or the electronic device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210761494.XA CN117360146A (en) | 2022-06-29 | 2022-06-29 | Vehicle height adjusting method and device, electronic equipment and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210761494.XA CN117360146A (en) | 2022-06-29 | 2022-06-29 | Vehicle height adjusting method and device, electronic equipment and vehicle |
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| CN117360146A true CN117360146A (en) | 2024-01-09 |
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| CN202210761494.XA Pending CN117360146A (en) | 2022-06-29 | 2022-06-29 | Vehicle height adjusting method and device, electronic equipment and vehicle |
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| Country | Link |
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| CN (1) | CN117360146A (en) |
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- 2022-06-29 CN CN202210761494.XA patent/CN117360146A/en active Pending
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