CN213705099U - Active electromagnetic compensation type air suspension system - Google Patents

Abstract

The utility model relates to an initiative electromagnetic compensation formula air suspension system, hang through first connection terminal surface fixed connection between upper portion and the piston rod, be close to on the air chamber and hang the fixed second connection terminal surface that is provided with of upper portion department, when the piston rod passes the second and connects the terminal surface and drive the piston body and carry out the piston motion in the air chamber, first connection terminal surface can be close to gradually or keep away from the second and connect the terminal surface, first connection terminal surface is the permanent magnet, the terminal surface is connected to the second and is the coil, and when the coil circular telegram, formation electromagnetic field between the terminal surface is connected to first connection terminal surface and second.

Description

Active electromagnetic compensation type air suspension system

Technical Field

The utility model belongs to the technical field of automobile design and manufacturing and specifically relates to an initiative electromagnetic compensation formula air suspension system.

Background

The suspension system is the whole support system consisting of the springs and the shock absorbers between the vehicle body and the tires. The suspension system should function to support the vehicle body and improve the ride, and different suspension arrangements will give the driver a different driving experience. The suspension system, which looks simple in appearance, integrates a plurality of acting forces, and determines the stability, comfort and safety of the car. The existing suspension system generally comprises three modes, namely mechanical suspension, air suspension and electromagnetic suspension according to different damping media, wherein each suspension system has different working principles according to different damping media, but all suspension systems are based on damping elements for buffering and damping, and any technology can not be used for maximally offsetting vibration caused by bumpy road surfaces. On the other hand, when the vehicle runs at a high speed and turns, a rolling condition is generated, and in severe cases, the vehicle may roll over. Therefore, how to develop a suspension system which can greatly offset the vibration caused by bumpy road surfaces and can prevent the roll to the maximum degree becomes a technical problem which needs to be solved urgently.

Disclosure of Invention

In order to solve the technical problem, the automobile air suspension device comprises an electric control device, an automobile state sensor and an air suspension device, wherein the air suspension device comprises an air chamber and a piston assembly arranged in the air chamber, the automobile state sensor is transmitted into the electric control device according to road surface data fed back during the running of an automobile, the electric control device adjusts the motion state of the air suspension device, the air suspension device comprises a suspension upper part connected with an automobile body and a suspension lower part connected with wheels, the piston assembly is arranged between the suspension upper part and the suspension lower part, the piston assembly comprises a piston rod and a piston body fixedly connected with the piston rod, the suspension upper part and the piston rod are fixedly connected through a first connecting end surface, a second connecting end surface is fixedly arranged on the air chamber close to the suspension upper part, and the piston rod penetrates through the second connecting end surface and drives the piston body to perform piston motion in, the first connecting end face can be gradually close to or far away from the second connecting end face, the first connecting end face is a permanent magnet, the second connecting end face is a coil, and when the coil is electrified, an electromagnetic field is formed between the first connecting end face and the second connecting end face.

After having adopted above-mentioned structure, although air suspension or electromagnetism suspension have adopted comparatively advanced fluid damping, reached and to hang corresponding damped technological effect according to the road conditions and should become, but still stay on passive shock attenuation buffer layer face, and introduced the electromagnetic force in this patent and carried out the initiative compensation, when jolting or heeling appears in the road surface, corresponding data information can be received to the very first time to the sensor, and transmit among the electrically controlled device, electrically controlled device then can carry out the road surface jolt that the initiative compensation automobile body received according to the information of road surface feedback. And because the electromagnetic force needs to output the power that matches with the vehicle weight and can play the technical effect of compensation, in this technical scheme, directly act on the air suspension with the electromagnetic force, utilize less electromagnetic force to come the compressed gas in the compressed air suspension, reached the scaling of power, still can effectively reduce the energy consumption.

As a further improvement of the utility model, air chamber external connection has air pump and gas pitcher, electrically controlled device control coil produces forward current or reverse current, produces the electromagnetic force between permanent magnet and the coil to make the piston rod up-and-down motion, and combine the gas pitcher to carry out volume compression or inflation to the air in the air chamber.

The air suspension device comprises a first suspension body and a second suspension body which are respectively arranged on the left side and the right side of the vehicle, an electric control device respectively controls coils in the first suspension body and the second suspension body to generate suction or repulsion to the first suspension body and the second suspension body, when the vehicle is inclined or turned on one side, the electric control device controls the coils of the suspension bodies on the side of turning on one side to generate repulsion, controls the coils of the suspension bodies on the other side to generate suction, and simultaneously discharges compressed air in an air chamber to reduce the height of the vehicle body.

After the structure is adopted, when the vehicle generates large inertia force, if rollover happens, the weight transfer is nearly 100 percent, the system controls the coils at two sides of the vehicle to generate electromagnetic force, one side generates suction force, the other side generates repulsion force, and the height of the vehicle body is reduced, so that the weight transfer is reduced, and the electromagnetic force which is large enough is generated to overcome the weight transfer. The air chamber has the function of providing a supporting force for the whole vehicle weight under normal conditions, and because the distance between the two magnetic contact surfaces is larger in normal work, if the vehicle body is supported by the electromagnetic force completely, a magnet with large volume and energy consumption are needed, and the addition of air can enable the electromagnetic force to work only when needed. The gas tank functions such that the electromagnetic force compensation required to place the suspension at the compression and tension limits can be reduced by the volume ratio of the gas chamber to the gas tank, which would otherwise require a very high electromagnetic force. The air pump is used for adapting to different loads, and the air tank reduces the required maximum compression force, so that the suspension is very sensitive to the change of the loads, and the air pump is required to adjust the air pressure according to different loads to ensure the normal height of the vehicle body.

Drawings

Fig. 1 is a schematic structural diagram of the patent.

Detailed Description

The automobile air suspension device comprises an air chamber and a piston assembly arranged in the air chamber, the automobile state sensor is transmitted into the electric control device according to road surface data fed back when an automobile runs, the electric control device adjusts the motion state of the air suspension device, the air suspension device comprises a suspension upper part 1 connected with an automobile body and a suspension lower part 2 connected with wheels, the piston assembly is arranged between the suspension upper part 1 and the suspension lower part 2, the piston assembly 3 comprises a piston rod 31 and a piston body 32 fixedly connected with the piston rod 31, the suspension upper part 1 is fixedly connected with the piston rod 31 through a first connecting end surface 4, a second connecting end surface 5 is fixedly arranged on the air chamber close to the suspension upper part, and the piston rod penetrates through the second connecting end surface and drives the piston body to perform piston motion in the air chamber, the first connection end face can be close to or keep away from the second connection end face 5 gradually, the first connection end face 4 is a permanent magnet, the second connection end face is a coil, and when the coil is electrified, an electromagnetic field 6 is formed between the first connection end face 4 and the second connection end face 5. Although air suspension or electromagnetic suspension have adopted comparatively advanced fluid damping, reached and should become according to the road conditions and hang corresponding damped technological effect, still stay on passive shock attenuation buffering aspect, and introduced the electromagnetic force in this patent and carried out active compensation, when jolting or heeling appears in the road surface, corresponding data information can be received to the sensor very first time, and transmit among the electrically controlled device, electrically controlled device then can carry out corresponding electromagnetic force output according to the information of road surface feedback and actively compensate the road surface jolt that the automobile body received. And because the electromagnetic force needs to output the power that matches with the vehicle weight and can play the technical effect of compensation, in this technical scheme, directly act on the air suspension with the electromagnetic force, utilize less electromagnetic force to come the compressed gas in the compressed air suspension, reached the scaling of power, still can effectively reduce the energy consumption.

The air chamber 7 is externally connected with an air pump and an air tank, the electric control device controls the coil to generate forward current or reverse current, and electromagnetic force is generated between the permanent magnet and the coil, so that the piston rod moves up and down, and volume compression or expansion is carried out on air in the air chamber by combining the air tank. The air suspension device comprises a first suspension body and a second suspension body which are respectively arranged on the left side and the right side of the vehicle, an electric control device respectively controls coils in the first suspension body and the second suspension body to generate suction or repulsion to the first suspension body and the second suspension body, when the vehicle is inclined or turned on one side, the electric control device controls the coils of the suspension bodies on the side of turning on one side to generate repulsion, controls the coils of the suspension bodies on the other side to generate suction, and simultaneously discharges compressed air in an air chamber to reduce the height of the vehicle body. The electric control device respectively controls the coils in the first suspension body and the second suspension body to generate suction or repulsion to the coils, when the vehicle rolls over or rolls over, the electric control device controls the coils of the suspension bodies on the side of rolling over to generate repulsion, controls the coils of the suspension bodies on the other side to generate suction, and simultaneously discharges compressed air in the air chamber to reduce the height of the vehicle body. When the vehicle generates large inertia force, if rollover happens, the weight transfer is nearly 100%, the system controls coils on two sides of the vehicle to generate electromagnetic force, one side generates suction force, the other side generates repulsion force, and the height of the vehicle body is reduced, so that the weight transfer is reduced, and the electromagnetic force which is large enough is generated to overcome the weight transfer. The air chamber has the function of providing a supporting force for the whole vehicle weight under normal conditions, and because the distance between the two magnetic contact surfaces is larger in normal work, if the vehicle body is supported by the electromagnetic force completely, a magnet with large volume and energy consumption are needed, and the addition of air can enable the electromagnetic force to work only when needed. The gas tank functions such that the electromagnetic force compensation required to place the suspension at the compression and tension limits can be reduced by the volume ratio of the gas chamber to the gas tank, which would otherwise require a very high electromagnetic force. The air pump is used for adapting to different loads, and the air tank reduces the required maximum compression force, so that the suspension is very sensitive to the change of the loads, and the air pump is required to adjust the air pressure according to different loads to ensure the normal height of the vehicle body.

Claims (3)

1. The utility model provides an initiative electromagnetic compensation formula air suspension system, includes electric control unit, car state sensor, air suspension device includes the air chamber, sets up the piston assembly in the air chamber, car state sensor is according to the road surface data transmission to electric control unit of feedback during the car is gone, and electric control unit adjusts air suspension device's motion state air suspension device includes the suspension upper portion of being connected with the automobile body and the suspension lower part of being connected with the wheel, piston assembly sets up and hangs between the lower part in suspension upper portion, piston assembly includes the piston rod, with piston rod fixed connection's piston body, its characterized in that: hang through first connection terminal surface fixed connection between upper portion and the piston rod, be close to on the air chamber and hang the fixed second connection terminal surface that is provided with of upper portion department, when the piston rod passes the second connection terminal surface and drives the piston body and carry out the piston motion in the air chamber, first connection terminal surface can be close to gradually or keep away from the second connection terminal surface, first connection terminal surface is the permanent magnet, the second connection terminal surface is the coil, when the coil circular telegram, forms the electromagnetic field between first connection terminal surface and the second connection terminal surface.

2. The active electromagnetic compensation air suspension system of claim 1, wherein: the air chamber is externally connected with an air pump and an air tank, the electric control device controls the coil to generate forward current or reverse current, and electromagnetic force is generated between the permanent magnet and the coil, so that the piston rod moves up and down, and volume compression or expansion is carried out on air in the air chamber by combining the air tank.

3. The active electromagnetic compensation air suspension system of claim 2, wherein: the air suspension device comprises a first suspension body and a second suspension body which are respectively arranged on the left side and the right side of the vehicle, an electric control device respectively controls coils in the first suspension body and the second suspension body to generate suction or repulsion to the first suspension body and the second suspension body, when the vehicle is inclined or turned on one side, the electric control device controls the coils of the suspension bodies on the side of turning on one side to generate repulsion, controls the coils of the suspension bodies on the other side to generate suction, and simultaneously discharges compressed air in an air chamber to reduce the height of the vehicle body.

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