CN109677227B - Vehicle body posture adjusting system and method based on air spring - Google Patents
Vehicle body posture adjusting system and method based on air spring Download PDFInfo
- Publication number
- CN109677227B CN109677227B CN201910031841.1A CN201910031841A CN109677227B CN 109677227 B CN109677227 B CN 109677227B CN 201910031841 A CN201910031841 A CN 201910031841A CN 109677227 B CN109677227 B CN 109677227B
- Authority
- CN
- China
- Prior art keywords
- air
- air pressure
- air spring
- module
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
本发明公开了一种基于空气弹簧的车身姿态调节系统与方法，调节系统包含车辆传感器模块、前处理模块、总控制模块、调节模块、语音提示模块和紧急手动按钮；车辆传感器模块包含四个车身高度传感器和加速度传感器；调节模块包含四个空气弹簧和附加气室；空气弹簧包含气囊、气压传感器、排气电动阀和进气电动阀。工作时，总控制模块根据四个车身高度传感器、加速度传感器、四个空气弹簧的气压传感器、紧急手动按钮的感应数据控制四个空气弹簧的排气电动阀、四个空气弹簧的进气电动阀、语音提示模块工作。本发明有利于驾驶员提前根据路况进行操作,提高了车辆悬架系统对不同路况的适应能力,保证了行车的安全性。
The invention discloses a vehicle body posture adjustment system and method based on air springs. The adjustment system includes a vehicle sensor module, a pre-processing module, a general control module, an adjustment module, a voice prompt module and an emergency manual button; the vehicle sensor module includes four vehicle body Height sensor and acceleration sensor; the adjustment module contains four air springs and additional air chambers; the air spring contains air bags, air pressure sensors, exhaust electric valves and air intake electric valves. When working, the main control module controls the exhaust electric valves of the four air springs and the intake electric valves of the four air springs based on the sensing data of the four body height sensors, the acceleration sensor, the air pressure sensors of the four air springs, and the emergency manual button. , the voice prompt module works. The invention is helpful for the driver to operate according to the road conditions in advance, improves the adaptability of the vehicle suspension system to different road conditions, and ensures the safety of driving.
Description
技术领域Technical field
本发明涉及汽车安全领域，尤其涉及一种基于空气弹簧的车身姿态调节系统与方法。The present invention relates to the field of automobile safety, and in particular to a vehicle body attitude adjustment system and method based on air springs.
背景技术Background technique
空气悬架因其独特的优点在车辆上得到了越来越广泛的应用,其性能主要取决于悬架参数,而传统被动空气悬架的刚度在设计时一旦选定便无法更改。在遇到一些较为颠簸的路面时,空气悬架的空气弹簧的自振频率会很高,不能很好的起到减振作用,影响乘客乘坐舒适性及司机驾驶感受。为了提高乘客乘坐的舒适性,可以增大空气弹簧中气囊的有效体积,气囊的有效体积增大后,相同路况下车辆的振动振幅将会减小。Air suspension has been increasingly widely used in vehicles due to its unique advantages. Its performance mainly depends on the suspension parameters, while the stiffness of traditional passive air suspension cannot be changed once selected during design. When encountering some bumpy roads, the natural vibration frequency of the air spring of the air suspension will be very high and cannot effectively dampen the vibration, affecting the passenger comfort and the driver's driving experience. In order to improve the comfort of passengers, the effective volume of the air bag in the air spring can be increased. When the effective volume of the air bag is increased, the vibration amplitude of the vehicle will be reduced under the same road conditions.
目前，市场上已有的空气弹簧都是通过电控自动调节车身的，即由控制器发出的电信号控制的，而由控制器发出的电信号来控制控制阀具有一定的局限性,例如在山区行驶时,弯道较多,车辆转弯时会有较大的侧倾,为了保证行车安全,需要提前关闭控制阀,但由于控制器电信号的发出不具备提前性,可能在转弯时才会发出控制电磁阀关断的信号,这对行车时不利的。再者,由于控制器发出信号的行为不具备主观性,无法智能地在行车舒适性与抗侧倾性能之间选择。At present, the existing air springs on the market automatically adjust the vehicle body through electronic control, that is, they are controlled by the electrical signal sent by the controller. However, the electrical signal sent by the controller to control the control valve has certain limitations. For example, in When driving in mountainous areas, there are many curves, and the vehicle will have a large roll when turning. In order to ensure driving safety, the control valve needs to be closed in advance. However, since the controller's electrical signal is not sent in advance, it may not be closed until the turn. Send a signal to control the solenoid valve to turn off, which is detrimental to driving. Furthermore, because the behavior of the controller sending signals is not subjective, it is impossible to intelligently choose between driving comfort and anti-roll performance.
发明内容Contents of the invention
本发明所要解决的技术问题是针对背景技术中所涉及到的缺陷，提供一种基于空气弹簧的车身姿态调节系统与方法。The technical problem to be solved by the present invention is to provide an air spring-based vehicle body attitude adjustment system and method in view of the defects involved in the background technology.
本发明为解决上述技术问题采用以下技术方案：The present invention adopts the following technical solutions to solve the above technical problems:
一种基于空气弹簧的车身姿态调节系统，包含车辆传感器模块、前处理模块、总控制模块、调节模块、语音提示模块和紧急手动按钮；A body posture adjustment system based on air springs, including a vehicle sensor module, a pre-processing module, a general control module, an adjustment module, a voice prompt module and an emergency manual button;
所述车辆传感器模块包含四个车身高度传感器和加速度传感器；The vehicle sensor module includes four vehicle height sensors and acceleration sensors;
所述四个车身高度传感器安装四个车轮处的车架上，用于检测车架在四个车轮处和地面之间的距离，并将其传递给所述前处理模块；The four body height sensors are installed on the vehicle frame at the four wheels for detecting the distance between the vehicle frame at the four wheels and the ground, and transmit it to the pre-processing module;
所述加速度传感器设置在车辆的悬架上，用于采集车身加速度，并将其传递给所述前处理模块；The acceleration sensor is arranged on the suspension of the vehicle and is used to collect the acceleration of the vehicle body and transmit it to the pre-processing module;
所述调节模块包含四个空气弹簧和附加气室；所述四个空气弹簧分别设置在汽车的四个悬架处，分别用于调整四个悬架的姿态；The adjustment module includes four air springs and additional air chambers; the four air springs are respectively arranged at the four suspensions of the car and are used to adjust the postures of the four suspensions;
所述空气弹簧包含气囊、气压传感器、排气电动阀和进气电动阀；所述气囊上设有进气孔和排气孔，其中，所述排气孔通过管道和外界相联通，进气孔通过管道和附加气室相联通；所述气压传感器设置在气囊中，用于感应气囊中的气压并将其传递给所述前处理模块；所述排气电动阀分别设置在排气孔和外界相联通的管道中，用于在打开时使得气囊朝外界放气、进而使得空气弹簧弹性变小，改善乘车舒适性；所述进气电动阀分别设置在进气孔和附加气室相联通的管道中，用于在打开时使得附加气室对气囊充气、进而使得空气弹簧弹性变大，增强车身的抗侧倾能力；The air spring includes an air bag, an air pressure sensor, an electric exhaust valve and an electric air intake valve; the air bag is provided with an air inlet hole and an exhaust hole, wherein the exhaust hole is connected to the outside world through a pipe, and the air intake hole is The hole is connected to the additional air chamber through a pipeline; the air pressure sensor is arranged in the air bag, used to sense the air pressure in the air bag and transfer it to the pre-processing module; the exhaust electric valve is respectively arranged in the exhaust hole and The pipeline connected to the outside world is used to make the air bag deflate to the outside world when it is opened, thereby reducing the elasticity of the air spring and improving ride comfort; the electric air intake valves are respectively arranged at the air inlet hole and the additional air chamber. The connected pipe is used to make the additional air chamber inflate the airbag when opened, thereby increasing the elasticity of the air spring and enhancing the anti-rolling ability of the body;
所述前处理模块用于对接收到的车架在四个车轮处和地面之间的距离、车身加速度、四个空气弹簧气囊中的气压进行模拟数字信号转换、滤波、剔除异常数据后，传递至所述总控制模块；The pre-processing module is used to convert the received distance between the four wheels of the vehicle frame and the ground, the acceleration of the vehicle body, and the air pressure in the four air spring bags into analog-to-digital signals, filter them, and eliminate abnormal data before transmitting them. to the total control module;
所述语音提示系统用于对驾驶员发出预警提示；The voice prompt system is used to issue early warning prompts to the driver;
所述紧急手动按钮设置在车辆的驾驶室，用于输入紧急切换指令给所述总控制模块；The emergency manual button is provided in the cab of the vehicle and is used to input emergency switching instructions to the general control module;
所述总控制模块分别和所述前处理模块、紧急手动按钮、四个空气弹簧的排气电动阀、四个空气弹簧的进气电动阀、语音提示模块电气相连，用于根据前处理模块、紧急手动按钮的传递的数据控制四个空气弹簧的排气电动阀、四个空气弹簧的进气电动阀、语音提示模块工作。The general control module is electrically connected to the pre-processing module, the emergency manual button, the exhaust electric valves of four air springs, the air intake electric valves of four air springs, and the voice prompt module, and is used to control the pre-processing module, The data transmitted by the emergency manual button controls the operation of the exhaust electric valves of the four air springs, the intake electric valves of the four air springs, and the voice prompt module.
本发明还公开了一种该基于空气弹簧的车身姿态调节系统的控制方法，包含以下步骤：The invention also discloses a control method of the air spring-based vehicle body attitude adjustment system, which includes the following steps:
步骤1），四个车身高度传感器、加速度传感器、四个空气弹簧的气压传感器分别获得车架在四个车轮处和地面之间的距离、车身加速度A以及四个空气弹簧气囊中的气压，并将其传递给所述前处理模块；Step 1), four vehicle body height sensors, acceleration sensors, and four air spring air pressure sensors respectively obtain the distance between the four wheels of the vehicle frame and the ground, the vehicle body acceleration A, and the air pressure in the four air spring airbags, and Pass it to the pre-processing module;
步骤2），前处理模块用于对接收到的车架在四个车轮处和地面之间的距离、车身加速度A、四个空气弹簧气囊中的气压进行模拟数字信号转换、滤波、剔除异常数据后，传递至所述总控制模块；Step 2), the pre-processing module is used to convert, filter, and eliminate abnormal data from analog to digital signals on the received distance between the four wheels of the vehicle frame and the ground, vehicle body acceleration A, and air pressure in the four air spring air bags. Finally, it is passed to the general control module;
步骤3），总控制模块计算车架在左侧后轮、右侧后轮处和地面之间距离的差值L1，计算车架在左侧前轮、右侧前轮处和地面之间距离的差值L2；Step 3), the main control module calculates the difference L1 between the distance between the left rear wheel and the right rear wheel of the frame and the ground, and calculates the distance between the left front wheel, the right front wheel and the ground. The difference L2;
步骤4），总控制模块求得L1和L2平均值的绝对值L；Step 4), the total control module obtains the absolute value L of the average value of L1 and L2;
步骤5），总控制模块将A和预设的加速度阈值B比较，将L和预设的稳定值M比较，并判断紧急手动按钮是否被按下；Step 5), the main control module compares A with the preset acceleration threshold B, compares L with the preset stable value M, and determines whether the emergency manual button is pressed;
步骤5.1），如果A小于等于B、L小于等于M、且紧急手动按钮未被按下，此时车身平稳，无侧翻风险，总控制模块将四个空气弹簧气囊中的气压分别和预设的第一气压阈值进行比较，对于每个空气弹簧：Step 5.1), if A is less than or equal to B, L is less than or equal to M, and the emergency manual button is not pressed, then the vehicle body is stable and there is no risk of rollover. The main control module will adjust the air pressure in the four air spring airbags to the preset value. The first air pressure threshold is compared, for each air spring:
步骤5.1.1），如果空气弹簧中的气压小于预设的第一气压阈值，控制空气弹簧的排气电动阀关闭、空气弹簧的进气电动阀打开，对空气弹簧中的气囊进行充气，直至空气弹簧中的气压等于预设的第一气压阈值；Step 5.1.1), if the air pressure in the air spring is less than the preset first air pressure threshold, control the exhaust electric valve of the air spring to close, the air intake electric valve to open, and inflate the air bag in the air spring until The air pressure in the air spring is equal to the preset first air pressure threshold;
步骤5.1.2），如果空气弹簧中的气压大于预设的第一气压阈值，控制空气弹簧的排气电动阀打开、空气弹簧的进气电动阀关闭，对空气弹簧中的气囊进行放气，直至空气弹簧中的气压等于预设的第一气压阈值；Step 5.1.2), if the air pressure in the air spring is greater than the preset first air pressure threshold, control the exhaust electric valve of the air spring to open, the air intake electric valve to close, and deflate the air bag in the air spring. Until the air pressure in the air spring equals the preset first air pressure threshold;
步骤5.2），如果A大于B、L小于等于M、且紧急手动按钮未被按下，此时车身颠簸，无侧翻风险，总控制模块将四个空气弹簧气囊中的气压分别和预设的第二气压阈值进行比较，所述预设的第二气压阈值小于预设的第一气压阈值，对于每个空气弹簧：Step 5.2), if A is greater than B, L is less than or equal to M, and the emergency manual button is not pressed, the vehicle body is bumpy and there is no risk of rollover. The main control module will adjust the air pressure in the four air spring air bags with the preset values. The second air pressure threshold is compared, and the preset second air pressure threshold is less than the preset first air pressure threshold. For each air spring:
步骤5.2.1），如果空气弹簧中的气压小于预设的第二气压阈值，控制空气弹簧的排气电动阀关闭、空气弹簧的进气电动阀打开，对空气弹簧中的气囊进行充气，直至空气弹簧中的气压等于预设的第二气压阈值；Step 5.2.1), if the air pressure in the air spring is less than the preset second air pressure threshold, control the exhaust electric valve of the air spring to close, the air intake electric valve to open, and inflate the air bag in the air spring until The air pressure in the air spring is equal to the preset second air pressure threshold;
步骤5.2.2），如果空气弹簧中的气压大于预设的第二气压阈值，控制空气弹簧的排气电动阀打开、空气弹簧的进气电动阀关闭，对空气弹簧中的气囊进行放气，直至空气弹簧中的气压等于预设的第二气压阈值；Step 5.2.2), if the air pressure in the air spring is greater than the preset second air pressure threshold, control the exhaust electric valve of the air spring to open, the air intake electric valve of the air spring to close, and deflate the air bag in the air spring. Until the air pressure in the air spring equals the preset second air pressure threshold;
步骤5.3），如果L大于M或者紧急手动按钮被按下，此时有侧翻风险，总控制模块进行主动控制：Step 5.3), if L is greater than M or the emergency manual button is pressed, there is a risk of rollover, and the main control module performs active control:
步骤5.3.1），总控制模块控制语音提示模块对驾驶员发出预警提示；Step 5.3.1), the main control module controls the voice prompt module to issue early warning prompts to the driver;
步骤5.3.2），根据车架在四个车轮处和地面之间的距离计算出四个空气弹簧气囊的目标气压，并通过控制各个空气弹簧的排气电动阀和进气电动阀，使得四个空气弹簧气囊的气压均和其目标气压相等。Step 5.3.2), calculate the target air pressure of the four air spring air bags based on the distance between the four wheels of the vehicle frame and the ground, and control the exhaust electric valve and intake electric valve of each air spring so that the four The air pressure of each air spring air bag is equal to its target air pressure.
本发明采用以上技术方案与现有技术相比，具有以下技术效果：Compared with the existing technology, the present invention adopts the above technical solution and has the following technical effects:
1. 本发明在电动控制阀的基础上设有紧急手动按钮，便于驾驶员提前根据路况主观的操控紧急手动按钮对车辆悬架进行主动控制，提高了空气悬架系统对不同路况的适应能力,保证了行车的安全性。1. The present invention is equipped with an emergency manual button on the basis of the electric control valve, which facilitates the driver to subjectively control the emergency manual button according to the road conditions in advance to actively control the vehicle suspension, and improves the adaptability of the air suspension system to different road conditions. Driving safety is ensured.
2. 本发明通过空气弹簧调节车身姿态，空气弹簧中的气囊与附加气室相连，可直接调整空气弹簧的软度和刚度，且根据车身的颠簸程度自动调整四个空气弹簧的软度，使得行驶更加舒适。2. The present invention adjusts the posture of the vehicle body through the air spring. The air bag in the air spring is connected to the additional air chamber, which can directly adjust the softness and stiffness of the air spring, and automatically adjusts the softness of the four air springs according to the bumpiness of the vehicle body, so that The ride is more comfortable.
附图说明Description of the drawings
图1为本发明的基于空气弹簧的车身姿态调节系统结构示意图；Figure 1 is a schematic structural diagram of the air spring-based vehicle body attitude adjustment system of the present invention;
图2为本发明的基于空气弹簧的车身姿态调节系统控制方法的流程示意图。Figure 2 is a schematic flowchart of the control method of the air spring-based vehicle body attitude adjustment system of the present invention.
具体实施方式Detailed ways
下面结合附图对本发明的技术方案做进一步的详细说明：The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings:
本发明可以以许多不同的形式实现，而不应当认为限于这里所述的实施例。相反，提供这些实施例以便使本公开透彻且完整，并且将向本领域技术人员充分表达本发明的范围。在附图中，为了清楚起见放大了组件。The invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
如图1所示，本发明公开了一种基于空气弹簧的车身姿态调节系统，包含车辆传感器模块、前处理模块、总控制模块、调节模块、语音提示模块和紧急手动按钮；As shown in Figure 1, the present invention discloses a vehicle body attitude adjustment system based on air springs, including a vehicle sensor module, a pre-processing module, a general control module, an adjustment module, a voice prompt module and an emergency manual button;
所述车辆传感器模块包含四个车身高度传感器和加速度传感器；The vehicle sensor module includes four vehicle height sensors and acceleration sensors;
所述四个车身高度传感器安装四个车轮处的车架上，用于检测车架在四个车轮处和地面之间的距离，并将其传递给所述前处理模块；The four body height sensors are installed on the vehicle frame at the four wheels for detecting the distance between the vehicle frame at the four wheels and the ground, and transmit it to the pre-processing module;
所述加速度传感器设置在车辆的悬架上，用于采集车身加速度，并将其传递给所述前处理模块；The acceleration sensor is arranged on the suspension of the vehicle and is used to collect the acceleration of the vehicle body and transmit it to the pre-processing module;
所述调节模块包含四个空气弹簧和附加气室；所述四个空气弹簧分别设置在汽车的四个悬架处，分别用于调整四个悬架的姿态；The adjustment module includes four air springs and additional air chambers; the four air springs are respectively arranged at the four suspensions of the car and are used to adjust the postures of the four suspensions;
所述空气弹簧包含气囊、气压传感器、排气电动阀和进气电动阀；所述气囊上设有进气孔和排气孔，其中，所述排气孔通过管道和外界相联通，进气孔通过管道和附加气室相联通；所述气压传感器设置在气囊中，用于感应气囊中的气压并将其传递给所述前处理模块；所述排气电动阀分别设置在排气孔和外界相联通的管道中，用于在打开时使得气囊朝外界放气、进而使得空气弹簧弹性变小，改善乘车舒适性；所述进气电动阀分别设置在进气孔和附加气室相联通的管道中，用于在打开时使得附加气室对气囊充气、进而使得空气弹簧弹性变大，增强车身的抗侧倾能力；The air spring includes an air bag, an air pressure sensor, an electric exhaust valve and an electric air intake valve; the air bag is provided with an air inlet hole and an exhaust hole, wherein the exhaust hole is connected to the outside world through a pipe, and the air intake hole is The hole is connected to the additional air chamber through a pipeline; the air pressure sensor is arranged in the air bag, used to sense the air pressure in the air bag and transfer it to the pre-processing module; the exhaust electric valve is respectively arranged in the exhaust hole and The pipeline connected to the outside world is used to make the air bag deflate to the outside world when it is opened, thereby reducing the elasticity of the air spring and improving ride comfort; the electric air intake valves are respectively arranged at the air inlet hole and the additional air chamber. The connected pipe is used to make the additional air chamber inflate the airbag when opened, thereby increasing the elasticity of the air spring and enhancing the anti-rolling ability of the body;
所述前处理模块用于对接收到的车架在四个车轮处和地面之间的距离、车身加速度、四个空气弹簧气囊中的气压进行模拟数字信号转换、滤波、剔除异常数据后，传递至所述总控制模块；The pre-processing module is used to convert the received distance between the four wheels of the vehicle frame and the ground, the acceleration of the vehicle body, and the air pressure in the four air spring bags into analog-to-digital signals, filter them, and eliminate abnormal data before transmitting them. to the total control module;
所述语音提示系统用于对驾驶员发出预警提示；The voice prompt system is used to issue early warning prompts to the driver;
所述紧急手动按钮设置在车辆的驾驶室，用于输入紧急切换指令给所述总控制模块；The emergency manual button is provided in the cab of the vehicle and is used to input emergency switching instructions to the main control module;
所述总控制模块分别和所述前处理模块、紧急手动按钮、四个空气弹簧的排气电动阀、四个空气弹簧的进气电动阀、语音提示模块电气相连，用于根据前处理模块、紧急手动按钮的传递的数据控制四个空气弹簧的排气电动阀、四个空气弹簧的进气电动阀、语音提示模块工作。The general control module is electrically connected to the pre-processing module, the emergency manual button, the exhaust electric valves of four air springs, the air intake electric valves of four air springs, and the voice prompt module, and is used to control the pre-processing module, The data transmitted by the emergency manual button controls the operation of the exhaust electric valves of the four air springs, the intake electric valves of the four air springs, and the voice prompt module.
如图2所示，本发明还公开了一种该基于空气弹簧的车身姿态调节系统的控制方法，包含以下步骤：As shown in Figure 2, the present invention also discloses a control method for the air spring-based vehicle body attitude adjustment system, which includes the following steps:
步骤1），四个车身高度传感器、加速度传感器、四个空气弹簧的气压传感器分别获得车架在四个车轮处和地面之间的距离、车身加速度A以及四个空气弹簧气囊中的气压，并将其传递给所述前处理模块；Step 1), four vehicle body height sensors, acceleration sensors, and four air spring air pressure sensors respectively obtain the distance between the four wheels of the vehicle frame and the ground, the vehicle body acceleration A, and the air pressure in the four air spring airbags, and Pass it to the pre-processing module;
步骤2），前处理模块用于对接收到的车架在四个车轮处和地面之间的距离、车身加速度A、四个空气弹簧气囊中的气压进行模拟数字信号转换、滤波、剔除异常数据后，传递至所述总控制模块；Step 2), the pre-processing module is used to convert, filter, and eliminate abnormal data from analog to digital signals on the received distance between the four wheels of the vehicle frame and the ground, vehicle body acceleration A, and air pressure in the four air spring air bags. Finally, it is passed to the main control module;
步骤3），总控制模块计算车架在左侧后轮、右侧后轮处和地面之间距离的差值L1，计算车架在左侧前轮、右侧前轮处和地面之间距离的差值L2；Step 3), the main control module calculates the difference L1 between the distance between the left rear wheel and the right rear wheel of the frame and the ground, and calculates the distance between the left front wheel, the right front wheel and the ground. The difference L2;
步骤4），总控制模块求得L1和L2平均值的绝对值L；Step 4), the total control module obtains the absolute value L of the average value of L1 and L2;
步骤5），总控制模块将A和预设的加速度阈值B比较，将L和预设的稳定值M比较，并判断紧急手动按钮是否被按下；Step 5), the main control module compares A with the preset acceleration threshold B, compares L with the preset stable value M, and determines whether the emergency manual button is pressed;
步骤5.1），如果A小于等于B、L小于等于M、且紧急手动按钮未被按下，此时车身平稳，无侧翻风险，总控制模块将四个空气弹簧气囊中的气压分别和预设的第一气压阈值进行比较，对于每个空气弹簧：Step 5.1), if A is less than or equal to B, L is less than or equal to M, and the emergency manual button is not pressed, then the vehicle body is stable and there is no risk of rollover. The main control module will adjust the air pressure in the four air spring airbags to the preset value. The first air pressure threshold is compared, for each air spring:
步骤5.1.1），如果空气弹簧中的气压小于预设的第一气压阈值，控制空气弹簧的排气电动阀关闭、空气弹簧的进气电动阀打开，对空气弹簧中的气囊进行充气，直至空气弹簧中的气压等于预设的第一气压阈值；Step 5.1.1), if the air pressure in the air spring is less than the preset first air pressure threshold, control the exhaust electric valve of the air spring to close, the air intake electric valve to open, and inflate the air bag in the air spring until The air pressure in the air spring is equal to the preset first air pressure threshold;
步骤5.1.2），如果空气弹簧中的气压大于预设的第一气压阈值，控制空气弹簧的排气电动阀打开、空气弹簧的进气电动阀关闭，对空气弹簧中的气囊进行放气，直至空气弹簧中的气压等于预设的第一气压阈值；Step 5.1.2), if the air pressure in the air spring is greater than the preset first air pressure threshold, control the exhaust electric valve of the air spring to open, the air intake electric valve to close, and deflate the air bag in the air spring. Until the air pressure in the air spring equals the preset first air pressure threshold;
步骤5.2），如果A大于B、L小于等于M、且紧急手动按钮未被按下，此时车身颠簸，无侧翻风险，总控制模块将四个空气弹簧气囊中的气压分别和预设的第二气压阈值进行比较，所述预设的第二气压阈值小于预设的第一气压阈值，对于每个空气弹簧：Step 5.2), if A is greater than B, L is less than or equal to M, and the emergency manual button is not pressed, the vehicle body is bumpy and there is no risk of rollover. The main control module will adjust the air pressure in the four air spring air bags with the preset values. The second air pressure threshold is compared, and the preset second air pressure threshold is less than the preset first air pressure threshold. For each air spring:
步骤5.2.1），如果空气弹簧中的气压小于预设的第二气压阈值，控制空气弹簧的排气电动阀关闭、空气弹簧的进气电动阀打开，对空气弹簧中的气囊进行充气，直至空气弹簧中的气压等于预设的第二气压阈值；Step 5.2.1), if the air pressure in the air spring is less than the preset second air pressure threshold, control the exhaust electric valve of the air spring to close, the air intake electric valve to open, and inflate the air bag in the air spring until The air pressure in the air spring is equal to the preset second air pressure threshold;
步骤5.2.2），如果空气弹簧中的气压大于预设的第二气压阈值，控制空气弹簧的排气电动阀打开、空气弹簧的进气电动阀关闭，对空气弹簧中的气囊进行放气，直至空气弹簧中的气压等于预设的第二气压阈值；Step 5.2.2), if the air pressure in the air spring is greater than the preset second air pressure threshold, control the exhaust electric valve of the air spring to open, the air intake electric valve of the air spring to close, and deflate the air bag in the air spring. Until the air pressure in the air spring equals the preset second air pressure threshold;
步骤5.3），如果L大于M或者紧急手动按钮被按下，此时有侧翻风险，总控制模块进行主动控制：Step 5.3), if L is greater than M or the emergency manual button is pressed, there is a risk of rollover, and the main control module performs active control:
步骤5.3.1），总控制模块控制语音提示模块对驾驶员发出预警提示；Step 5.3.1), the main control module controls the voice prompt module to issue early warning prompts to the driver;
步骤5.3.2），根据车架在四个车轮处和地面之间的距离计算出四个空气弹簧气囊的目标气压，并通过控制各个空气弹簧的排气电动阀和进气电动阀，使得四个空气弹簧气囊的气压均和其目标气压相等。Step 5.3.2), calculate the target air pressure of the four air spring air bags based on the distance between the four wheels of the vehicle frame and the ground, and control the exhaust electric valve and intake electric valve of each air spring so that the four The air pressure of each air spring air bag is equal to its target air pressure.
本技术领域技术人员可以理解的是，除非另外定义，这里使用的所有术语（包括技术术语和科学术语）具有与本发明所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是，诸如通用字典中定义的那些术语应该被理解为具有与现有技术的上下文中的意义一致的意义，并且除非像这里一样定义，不会用理想化或过于正式的含义来解释。It can be understood by one of ordinary skill in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in general dictionaries are to be understood to have meanings consistent with their meaning in the context of the prior art, and are not to be taken in an idealized or overly formal sense unless defined as herein. explain.
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above-mentioned specific embodiments further describe the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above-mentioned are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031841.1A CN109677227B (en) | 2019-01-14 | 2019-01-14 | Vehicle body posture adjusting system and method based on air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031841.1A CN109677227B (en) | 2019-01-14 | 2019-01-14 | Vehicle body posture adjusting system and method based on air spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109677227A CN109677227A (en) | 2019-04-26 |
| CN109677227B true CN109677227B (en) | 2023-09-26 |
Family
ID=66193183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910031841.1A Active CN109677227B (en) | 2019-01-14 | 2019-01-14 | Vehicle body posture adjusting system and method based on air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109677227B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223972B (en) * | 2019-08-27 | 2021-12-07 | 吉林大学 | Double-cross-arm type suspension helical spring failure emergency protection control system and method |
| CN112238725B (en) * | 2019-09-16 | 2021-11-05 | 吉林大学 | Thrust vector-based suspension spring failure emergency protection control system and method |
| CN112693271B (en) * | 2021-02-24 | 2022-05-17 | 山东思迈尔智能科技有限公司 | Remote trailer body height adjusting method |
| CN116101005A (en) * | 2023-01-10 | 2023-05-12 | 岚图汽车科技有限公司 | Spring height adjusting method and device, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618638A (en) * | 2003-10-16 | 2005-05-25 | 三菱扶桑卡客车株式会社 | Vehicle height adjusting apparatus |
| JP2010284982A (en) * | 2009-06-09 | 2010-12-24 | Pin Hsiu Rubber Co Ltd | Intelligent type electronic air pressure automatically adjusting suspension system |
| CN103660837A (en) * | 2013-12-09 | 2014-03-26 | 深圳市德平国瀚汽车电子科技有限公司 | AHC height control system and vehicle |
| CN108297642A (en) * | 2018-02-06 | 2018-07-20 | 海南大学 | Shared gas chamber airsuspension system and its control method |
| CN209738734U (en) * | 2019-01-14 | 2019-12-06 | 南京航空航天大学 | Air spring-based vehicle body posture adjusting system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017222987A1 (en) * | 2016-06-20 | 2017-12-28 | System Integrators International, LLC | Electro-dynamically controlled leveling system |
-
2019
- 2019-01-14 CN CN201910031841.1A patent/CN109677227B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618638A (en) * | 2003-10-16 | 2005-05-25 | 三菱扶桑卡客车株式会社 | Vehicle height adjusting apparatus |
| JP2010284982A (en) * | 2009-06-09 | 2010-12-24 | Pin Hsiu Rubber Co Ltd | Intelligent type electronic air pressure automatically adjusting suspension system |
| CN103660837A (en) * | 2013-12-09 | 2014-03-26 | 深圳市德平国瀚汽车电子科技有限公司 | AHC height control system and vehicle |
| CN108297642A (en) * | 2018-02-06 | 2018-07-20 | 海南大学 | Shared gas chamber airsuspension system and its control method |
| CN209738734U (en) * | 2019-01-14 | 2019-12-06 | 南京航空航天大学 | Air spring-based vehicle body posture adjusting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109677227A (en) | 2019-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109677227B (en) | Vehicle body posture adjusting system and method based on air spring | |
| CN104786772B (en) | A kind of interconnection type air suspension control device, control system and method thereof | |
| KR101198227B1 (en) | Method and apparatus for controlling a semi-active suspension system for motorcycles | |
| US9358848B2 (en) | Device for adapting the tire pressure during travel | |
| US6264213B1 (en) | Suspension system for land vehicles, in particular motor vehicles | |
| CN104210397B (en) | Active seat for automobile | |
| CN108839532B (en) | Interconnection state control method for four-corner interconnection air suspension | |
| CN108099536A (en) | It is a kind of to damp continuously adjustable and variable rigidity control system and vehicle | |
| CN110001338A (en) | A suspension system and method and vehicle | |
| JPH04163220A (en) | Vehicular suspension device | |
| CN106143041A (en) | A kind of Vehicular air suspension control system and control method thereof | |
| CN107009839B (en) | Standby mode for active roll control system | |
| CN104827849A (en) | AHC height controlling system and vehicle | |
| CN111660749B (en) | Method for controlling height of air suspension vehicle body | |
| CN209738734U (en) | Air spring-based vehicle body posture adjusting system | |
| CN114750556B (en) | Vehicle height dynamic adjustment control system and method for semi-active suspension | |
| CN109424690A (en) | The damping control method of damper, voltage-controlled variable damping vibration insulating system and vehicle | |
| JPH0596921A (en) | Vehicle height adjustment control device | |
| CN116653527A (en) | Automobile ECAS height control method and system | |
| JPS61169310A (en) | Rear suspension control device | |
| JPS61166715A (en) | Rear wheel suspension control device | |
| CN204184159U (en) | A kind of arrangement for adjusting height of light-duty truck | |
| CN212555730U (en) | Vehicle rear axle electric control suspension control system | |
| CN207842582U (en) | A kind of continuously adjustable control system and vehicle with variable rigidity of damping | |
| CN207549895U (en) | A kind of electric-control system of light-duty commercial vehicle air suspension |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |