CN104827847A - Side-inclining preventing vehicle driving transverse stabilizer bar - Google Patents

Abstract

The invention discloses an anti-roll vehicle active lateral stabilizer bar, which is arranged on the vehicle suspension; It is divided into left half torsion bar and right half torsion bar; the composition of magnetorheological rotary damper includes magnetorheological rotary damper stator, magnetorheological rotary damper rotor, electromagnetic coil and shell end cover; the left half The torsion bar drives the stator of the magnetorheological rotary damper to rotate, or the right half of the torsion bar passes through the shell end cover to drive the rotor of the magnetorheological rotary damper to rotate, so that the stator of the magnetorheological rotary damper and the magnetorheological rotary damper While the rotors are in relative motion, the electromagnetic coil is energized to generate a reverse damping force inside the magneto-rheological rotary damper, thereby forming an anti-roll structure. The invention can reduce the inclination of the vehicle when the vehicle is turning, thereby improving the comfort, stability and safety of the vehicle.

Description

An anti-roll vehicle active lateral stabilizer bar

technical field

The invention relates to a vehicle active stabilizer bar, which belongs to the technical field of vehicle safety.

Background technique

The vehicle tends to roll when turning at a high speed, and excessive roll tends to make the driver feel tired and insecure. Although the stabilizer bar can improve the anti-roll stiffness of the vehicle and reduce the roll angle of the vehicle under cornering conditions, but when driving on a straight road, the stabilizer bar increases the coupling of the suspension vibration on the left and right sides. , reducing the comfort of the vehicle.

Conventional passive suspensions with stabilizer bars are difficult to meet the requirements of ride comfort and handling stability at the same time, and cannot actively adjust the anti-roll performance of the suspension according to the rolling tendency of the vehicle in real time. In addition, although some motor-type active stabilizer bars and hydraulic motor-type active stabilizer bars are used in some high-end cars, the control system is complex and difficult to control, resulting in unstable control systems and high costs.

Contents of the invention

In order to overcome the deficiencies in the prior art, the present invention proposes an anti-roll vehicle active stabilizer bar, in order to reduce the inclination of the vehicle when the vehicle is turning, thereby improving the comfort, stability and safety of the vehicle sex.

The present invention adopts following technical scheme for solving technical problems:

An anti-roll vehicle active stabilizer bar of the present invention is arranged on the automobile suspension; its structural feature is: a magneto-rheological rotary damper is fixed at the middle position of the stabilizer bar, so that the The stabilizer bar is divided into a left half torsion bar and a right half torsion bar to form an active stabilizer bar;

The composition of the magnetorheological rotary damper includes: magnetorheological rotary damper stator, magnetorheological rotary damper rotor, electromagnetic coil and shell end cover;

The stator of the magneto-rheological rotary damper is fixedly connected to the left half of the torsion bar; the rotor of the magnetorheological rotary damper is fixedly connected to the right half of the torsion bar through the shell end cover;

The interior of the magnetorheological rotary damper stator is a symmetrical fan-shaped hollow structure; the magnetorheological rotary damper rotor is arranged in the fan-shaped hollow structure, and the magnetorheological rotary damper rotor is a symmetrical sector Blade structure; so that two groups of diagonally symmetrical and relatively independently sealed oil cavity channels are formed inside the magnetorheological rotary damper stator, and the oil cavity channels are filled with magnetorheological fluid;

The fan-shaped symmetrical blades of the rotor of the magneto-rheological rotary damper are respectively provided with oil holes; so that the magnetorheological fluids in the oil chamber channels in the same fan-shaped hollow structure flow through the oil holes;

An electromagnetic coil is wound on the inner surface of the stator of the magneto-rheological rotary damper;

The stator of the magneto-rheological rotary damper is driven to rotate by the left half of the torsion bar, or the rotor of the magnetorheological rotary damper is driven by the right half of the torsion bar through the end cover of the shell, so that When the stator of the magneto-rheological rotary damper and the rotor of the magnetorheological rotary damper are in relative motion, the electromagnetic coil is energized to generate a reverse damping force inside the magnetorheological rotary damper, thereby Form an anti-roll structure.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The present invention applies an external magnetic field to the magnetorheological rotary damper, adopts an active lateral stabilizer bar with a magnetorheological rotary damper, and can actively adjust the torsional stiffness of the active stabilizer bar according to the characteristics of the working conditions. The relative motion between the stator of the rotary damper and the rotor of the magneto-rheological rotary damper makes the inside of the magneto-rheological rotary damper generate a reverse damping force, thereby forming an anti-roll structure and improving the anti-roll performance of the car. It also improves the safety and comfort of the vehicle;

2. The stabilizer bar of the present invention adopts a magneto-rheological rotary damper structure, which is small in size, light in weight and simple in structure;

3. The magnetorheological fluid in the magnetorheological rotary damper of the present invention is a new type of intelligent material, which can produce obvious magnetorheological effects under the action of an external magnetic field, showing a Bingham fluid with high viscosity and low fluidity Body characteristics, which are similar to solid properties, and play a role in improving the damping force of the magnetorheological rotary damper;

4. The rotor structure of the magnetorheological rotary damper of the present invention adopts a fan-shaped blade type, which increases the contact area with the magnetorheological fluid, thereby increasing the damping force;

5. The present invention adopts the active stabilizer bar of the magneto-rheological rotary damper. Compared with the active stabilizer bar of the hydraulic drive type and the motor drive type, the control is simpler, and it overcomes the active stabilizer bar of the motor type and hydraulic motor type in the prior art. The instability problem of the rod control system and reduce the cost.

Description of drawings

Fig. 1 is a structural diagram of the active stabilizer bar of the present invention;

Fig. 2 is a structural diagram of the magnetorheological rotary damper of the present invention;

Fig. 3 is the sectional view of A-A in Fig. 2;

Serial numbers in the figure: 1 left half torsion bar, 2 right half torsion bar, 3 magnetorheological rotary damper, 4 magnetorheological rotary damper stator, 5 magnetorheological rotary damper rotor, 6a first oil chamber channel , 6b second oil chamber channel, 6c third oil chamber channel, 6d fourth oil chamber channel, 7 electromagnetic coil, 8 shell end cover.

Detailed ways

As shown in Figure 1, a vehicle active anti-roll stabilizer bar is arranged on the vehicle suspension; a magneto-rheological rotary damper 3 is fixed at the middle position of the stabilizer bar, so that the stabilizer bar is divided into It is the left half of the torsion bar 1 and the right half of the torsion bar 2, thereby forming an active stabilizer bar.

As shown in FIGS. 2 and 3 , the composition of the magnetorheological rotary damper 3 includes: the magnetorheological rotary damper stator 4 , the magnetorheological rotary damper rotor 5 , the electromagnetic coil 7 and the housing end cover 8 .

The stator 4 of the magneto-rheological rotary damper is fixedly connected to the left half of the torsion bar 1 , and the rotor 5 of the magneto-rheological rotary damper is fixedly connected to the right half of the torsion bar 2 through the shell end cover 8 .

The inside of the magnetorheological rotary damper stator 4 is a symmetrical fan-shaped hollow structure, and the magnetorheological rotary damper rotor 5 is arranged in the fan-shaped hollow structure, and the magnetorheological rotary damper rotor 5 is a symmetrical fan-shaped blade structure, so that The stator 4 of the magneto-rheological rotary damper forms two groups of diagonally symmetrical and relatively independently sealed oil cavity channels, that is, the first oil cavity channel 6a is symmetrical to the third oil cavity channel 6c; the second oil cavity channel 6b is connected to the fourth oil cavity channel. The cavity channels 6d are symmetrical, the first oil cavity channel 6a is relatively sealed to the fourth oil cavity channel 6d, the second oil cavity channel 6b is relatively sealed to the third oil cavity channel 6c, and the four oil cavity channels are filled with magnetorheological fluid . Magneto-rheological fluid is a new type of intelligent material. Under the action of external magnetic field, it can produce obvious magnetorheological effect, showing the characteristics of Bingham body with high viscosity and low fluidity, and behaves like a solid. Improving the damping force effect of a magnetorheological rotary damper.

The fan-shaped symmetrical blades of the magnetorheological rotary damper rotor 5 are respectively provided with oil holes, so that the magnetorheological fluid in the oil chamber channel in the same fan-shaped hollow structure flows through the oil holes, that is, when the magnetorheological When the rotary damper rotor rotates clockwise, the magnetorheological fluid flows from the first oil chamber channel 6a and the third oil chamber channel 6c to the second oil chamber channel 6b and the fourth oil chamber channel 6d respectively. When the rotor rotates counterclockwise, the magnetorheological fluid flows from the second oil chamber channel 6b and the fourth oil chamber channel 6d to the first oil chamber channel 6a and the third oil chamber channel 6c respectively.

An electromagnetic coil 7 is wound on the inner surface of the stator 4 of the magneto-rheological rotary damper, and a magnetic field is generated after electrification. Currents of different magnitudes create magnetic fields of different strengths, and the flow characteristics of the magnetorheological liquid flowing through the pipeline become worse under the action of the magnetic field, which increases the overall damping coefficient of the stabilizer bar.

Through the rheostat characteristics of the magneto-rheological rotary damper 3, according to information such as vehicle lateral acceleration and roll angle, actively control the strength of the external magnetic field of the magnetorheological rotary damper 3, and change the damping force of the magnetorheological rotary damper 3, thereby The coupling active adjustment of the vibration force of the suspension on the left and right sides is realized, and the safety and comfort of the vehicle are improved.

When the vehicle rolls due to turning or other reasons, the present invention uses the left half torsion bar 1 to drive the magnetorheological rotary damper stator 4 to rotate, or uses the right half torsion bar 2 to drive the magnetorheological rotary damper through the shell end cover 8 The rotor 5 of the rotary damper rotates so that the magneto-rheological rotary damper stator 4 and the rotor 5 of the magnetorheological rotary damper form a relative motion at the same time, and the electromagnetic coil 7 is energized so that the inside of the magnetorheological rotary damper 3 reverses damping force, thereby forming an anti-roll structure.

Claims (1)

1. an anti-rolling vehicle active lateral stabilizer rod, is be arranged on automotive suspension; It is characterized in that: the affixed magnetorheological rotary damper (3) of the middle position of described Panhard rod, make described Panhard rod be divided into left half side torsion bar (1) and the half side torsion bar in the right side (2), thus form active lateral stabilizer rod;

The composition of described magnetorheological rotary damper (3) comprising: magnetorheological rotary damper stator (4), magnetorheological rotary damper rotor (5), magnet coil (7) and shell end cap (8);

Described magnetorheological rotary damper stator (4) is affixed with the half side torsion bar in a described left side (1); Described magnetorheological rotary damper rotor (5) is affixed by described shell end cap (8) and the half side torsion bar in the described right side (2);

The inside of described magnetorheological rotary damper stator (4) is symmetrical fan-shaped hollow structure; Described magnetorheological rotary damper rotor (5) is set in described fan-shaped hollow structure, and described magnetorheological rotary damper rotor (5) is symmetrical sector structure; Thus form two groups of diagonal angles symmetries and the oil cavity channel (6) of relatively independent sealing in described magnetorheological rotary damper stator (4) inside, and be full of magnetic rheological liquid in described oil cavity channel (6);

The fan-shaped symmetrical blading of described magnetorheological rotary damper rotor (5) is respectively arranged with oil through; Thus the magnetic rheological liquid in the oil cavity channel in same fan-shaped hollow structure is flowed mutually by described oil through;

The medial surface of described magnetorheological rotary damper stator (4) is wound with magnet coil (7);

Described magnetorheological rotary damper stator (4) is driven to rotate with the half side torsion bar in a described left side (1), or, described magnetorheological rotary damper rotor (5) is driven to rotate with the half side torsion bar in the described right side (2) by described shell end cap (8), while making to form relative motion between described magnetorheological rotary damper stator (4) and described magnetorheological rotary damper rotor (5), described magnet coil (7) energising makes the inside of described magnetorheological rotary damper (3) produce reverse dumping force, thus forms anti-inclination structure.