CN213007476U - Adjustable damping control device for vehicle - Google Patents
Adjustable damping control device for vehicle Download PDFInfo
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- CN213007476U CN213007476U CN202021293047.9U CN202021293047U CN213007476U CN 213007476 U CN213007476 U CN 213007476U CN 202021293047 U CN202021293047 U CN 202021293047U CN 213007476 U CN213007476 U CN 213007476U
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- adjustable damping
- cdc
- shock absorber
- damping shock
- vehicle
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Abstract
The utility model discloses an adjustable damping control device for vehicle, including controller ECU, left front automobile body acceleration sensor, right front automobile body acceleration sensor, acceleration sensor in the automobile body back, mode switch, main car CAN network, the adjustable damping shock absorber of left front CDC, the adjustable damping shock absorber of right front CDC, the adjustable damping shock absorber of left back CDC, the adjustable damping shock absorber of right back CDC, fault network, power and ignition switch, controller ECU gathers three automobile body acceleration sensor in real time and measures automobile body acceleration information, and utilize the damping force of four adjustable damping shock absorbers of these information control CDC. The utility model discloses not only can reduce the automobile body vibration, realize the operation stability and the safety control of vehicle, promote vehicle travelling comfort, install simple structure simultaneously, it is with low costs, operation maintenance convenience.
Description
Technical Field
The utility model relates to a vehicle suspension system control field particularly, relates to an adjustable damping control device for vehicle.
Background
The automobile suspension system is a connecting structure system between a frame and wheels, and mainly has the functions of transmitting force and moment between the wheels and the frame, buffering impact force transmitted to the frame or an automobile body from an uneven road surface and attenuating vibration generated by the impact force. In order to quickly attenuate the vibration of the frame and the vehicle body and improve the smoothness and comfort of the running of the vehicle, the suspension system of the vehicle is provided with a damper.
The traditional damping control mode of the vehicle generally adopts a ceiling damping control strategy, namely damping is adjusted by utilizing the absolute speed of a vehicle body and the direction of the relative speed of the vehicle body and wheels, the problem of large algorithm error exists, meanwhile, four displacement sensors and three vehicle body acceleration sensors are needed to be used in the control strategy, the number of the needed sensors is large, the structure is complex, and the production cost is high.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an adjustable damping control device is used to vehicle can promote the car ride comfort and take the travelling comfort.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an adjustable damping control device for a vehicle, comprising: the controller ECU acquires the information of the left front vehicle body acceleration sensor, the right front vehicle body acceleration sensor, the left rear CDC adjustable damping shock absorber, the right rear CDC adjustable damping shock absorber, the fault network, the power supply and the ignition switch in real time, controls and adjusts the left front CDC adjustable damping shock absorber, the right front adjustable damping shock absorber, the left rear CDC adjustable damping shock absorber and the right rear CDC adjustable damping shock absorber according to a built-in control algorithm, and is connected with the left front vehicle body acceleration sensor, the right front vehicle body acceleration sensor, the vehicle body rear middle acceleration sensor, the mode switch, the CAN network, the main vehicle CAN network, the left front CDC adjustable damping shock absorber, the right front CDC adjustable damping shock absorber, the left rear CDC adjustable damping shock absorber and the right rear, The CAN network of the main vehicle, the left front CDC adjustable damping shock absorber, the right front CDC adjustable damping shock absorber, the left rear CDC adjustable damping shock absorber, the right rear CDC adjustable damping shock absorber, the fault network, the power supply and the ignition switch are connected.
Preferably, the mode switch has three modes of soft, hard and CDC.
Preferably, the main vehicle CAN network comprises vehicle speed, steering wheel rotation angle, accelerator pedal position and brake pedal position information, and the controller ECU detects the information of the main vehicle CAN network in real time to perform attitude control on the vehicle.
Preferably, the voltage of the power supply is 12V or 24V.
Compared with the prior art, the beneficial effects of the utility model are that:
the built-in control strategy of the controller EUC in the adjustable damping control device for the vehicle is a frequency division control strategy, replaces a common ceiling damping control strategy, and can solve the problem of large high-frequency damping in the ceiling damping control strategy, thereby effectively reducing the vibration of the vehicle body and improving the comfort of the vehicle; on the other hand, the utility model discloses a required sensor quantity significantly reduces of adjustable damping control device for vehicle, simplifies the structure and the cost is reduced simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawing in the following description is only an embodiment of the invention, and that for a person skilled in the art, other embodiments can be derived from the drawing provided without inventive effort.
Fig. 1 is a schematic structural diagram of an adjustable damping control device for a vehicle according to the present invention.
Fig. 2 is a schematic structural diagram of a conventional vehicular damping control apparatus.
Detailed Description
The invention will be further described with reference to the following figures and examples:
as shown in fig. 1, an adjustable damping control apparatus for a vehicle includes: the controller ECU1, the left front vehicle body acceleration sensor 2-1, the right front vehicle body acceleration sensor 2-2, the vehicle body rear middle acceleration sensor 2-3, the mode switch 3, the main vehicle CAN network 4, the left front CDC adjustable damping shock absorber 5-1, the right front CDC adjustable damping shock absorber 5-2, the left rear CDC adjustable damping shock absorber 5-3, the right rear CDC adjustable damping shock absorber 5-4, the fault network 6, the power supply 7 and the ignition switch 8, the controller ECU1 collects the information of the left front vehicle body acceleration sensor 2-1, the right front vehicle body acceleration sensor 2-2 and the vehicle body rear middle acceleration sensor 2-3 in real time and controls and adjusts the left front CDC adjustable damping shock absorber 5-1, the right front adjustable damping shock absorber 5-2, the left rear CDC adjustable damping shock absorber 5-3 and the right rear CDC adjustable damping shock absorber 5-4 according to a built-in control algorithm, the controller ECU1 is connected with a left front vehicle body acceleration sensor 2-1, a right front vehicle body acceleration sensor 2-2, a vehicle body rear middle acceleration sensor 2-3, a mode switch 3, a main vehicle CAN network 4, a left front CDC adjustable damping shock absorber 5-1, a right front CDC adjustable damping shock absorber 5-2, a left rear CDC adjustable damping shock absorber 5-3, a right rear CDC adjustable damping shock absorber 5-4, a fault network 6, a power supply 7 and an ignition switch 8 through electric wires.
Preferably, the voltage of the power supply 7 is 12V or 24V.
Preferably, the structures of the left front CDC adjustable damping shock absorber 5-1, the right front CDC adjustable damping shock absorber 5-2, the left rear CDC adjustable damping shock absorber 5-3 and the right rear CDC adjustable damping shock absorber 5-4 are solenoid valve built-in type, solenoid valve external type or magneto-rheological structure.
For explaining the difference between the device of the present invention and the conventional damping control device of the vehicle in detail, compared with fig. 2, the controller of the conventional damping control device of the vehicle generally adopts a skyhook damping control strategy, and utilizes the absolute speed of the vehicle body and the direction of the relative speed of the vehicle body and the wheels to adjust the damping, so as to mainly solve the vibration near the offset frequency of the vehicle body, the device generally adopts four displacement sensors and three acceleration sensors of the vehicle body, the acquired information of the displacement sensors is differentiated to obtain the relative speed of the vehicle body and the wheels, and the absolute speed of the vehicle body is obtained after the information of the acceleration sensors of the vehicle body is integrated, so as to control the damping force of the; and the utility model discloses an adjustable damping controlling means's for vehicle controller ECU has adopted existing frequency division damping control strategy, utilizes the relation of a frequency division factor control automobile body absolute speed and automobile body acceleration to realize, consequently only utilize three automobile body acceleration sensor can, obtain the absolute speed of automobile body through the integral number, the error that has both reduced because of the control strategy brings has expanded the control frequency of automobile body vibration simultaneously.
The utility model discloses an adjustable damping controlling means during operation for vehicle, controller ECU gathers three automobile body acceleration sensor in real time and measures automobile body acceleration information to utilize these information to produce the damping force of four CDC adjustable damping shock absorbers of PWM signal control, and then reduce the automobile body vibration, thereby realize that the vehicle travelling comfort promotes. In addition, the ECU of the controller controls the posture of the vehicle by monitoring the steering wheel angle, the brake pedal, the accelerator pedal, the vehicle speed and the ignition signal in real time, so that the stability and the safety control of the vehicle are realized. The mode switch can be switched among a soft mode, a hard mode and a CDC mode, and has a corresponding indicator light display mode, when a system has a fault, the system operates in the hard mode state, and meanwhile, a fault light flickers and stores a fault code.
The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.
Claims (5)
1. An adjustable damping control device for a vehicle, characterized by comprising: the intelligent control system comprises a controller ECU (1), a left front vehicle body acceleration sensor (2-1), a right front vehicle body acceleration sensor (2-2), a vehicle body rear middle acceleration sensor (2-3), a mode switch (3), a main vehicle CAN network (4), a left front CDC adjustable damping shock absorber (5-1), a right front CDC adjustable damping shock absorber (5-2), a left rear CDC adjustable damping shock absorber (5-3), a right rear CDC adjustable damping shock absorber (5-4), a fault network (6), a power supply (7) and an ignition switch (8), wherein the controller ECU (1) collects information of the left front vehicle body acceleration sensor (2-1), the right front vehicle body acceleration sensor (2-2) and the vehicle body rear middle acceleration sensor (2-3) in real time and carries out control on the left front adjustable damping shock absorber (5-1) CDC according to a built-in control algorithm, The controller ECU (1) is connected with the left front vehicle body acceleration sensor (2-1), the right front vehicle body acceleration sensor (2-2), the rear vehicle body middle acceleration sensor (2-3), the mode switch (3), the main vehicle CAN network (4), the left front CDC adjustable damping shock absorber (5-1), the right front CDC adjustable damping shock absorber (5-2), the left rear CDC adjustable damping shock absorber (5-3), the right rear CDC adjustable damping shock absorber (5-4), the fault network (6), the power supply (7) and the ignition switch (8) through electric wires.
2. The adjustable damping control device for the vehicle according to claim 1, characterized in that: the mode switch (3) has three modes of soft mode, hard mode and CDC mode selection.
3. The adjustable damping control device for the vehicle according to claim 1, characterized in that: the main vehicle CAN network (4) comprises vehicle speed, steering wheel rotation angle, accelerator pedal position and brake pedal position information, and the controller ECU (1) detects the information of the main vehicle CAN network (4) in real time to perform attitude control on the vehicle.
4. The adjustable damping control device for the vehicle according to claim 1, characterized in that: the voltage of the power supply (7) is 12V or 24V.
5. The adjustable damping control device for the vehicle according to claim 1, characterized in that: the structure of the left front CDC adjustable damping shock absorber (5-1), the right front CDC adjustable damping shock absorber (5-2), the left rear CDC adjustable damping shock absorber (5-3) and the right rear CDC adjustable damping shock absorber (5-4) is an electromagnetic valve built-in type, electromagnetic valve external type or magneto-rheological structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021293047.9U CN213007476U (en) | 2020-07-03 | 2020-07-03 | Adjustable damping control device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021293047.9U CN213007476U (en) | 2020-07-03 | 2020-07-03 | Adjustable damping control device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213007476U true CN213007476U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021293047.9U Active CN213007476U (en) | 2020-07-03 | 2020-07-03 | Adjustable damping control device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213007476U (en) |
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2020
- 2020-07-03 CN CN202021293047.9U patent/CN213007476U/en active Active
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