CN-121973586-A - Suspension system and vehicle

CN121973586ACN 121973586 ACN121973586 ACN 121973586ACN-121973586-A

Abstract

The embodiment of the application provides a suspension system and a vehicle. The suspension system comprises a base, a linear motor, an elastic piece and a magneto-rheological damper, wherein the base comprises a support and a lower supporting seat, one of the support and the lower supporting seat is suitable for being connected with a vehicle body, the other one of the support and the lower supporting seat is suitable for being connected with a vehicle wheel, the linear motor comprises a stator and a rotor, one end of the rotor is connected with the support, one end of the stator, which is far away from the support, is connected with the lower supporting seat, the elastic piece is arranged between the support and the stator and provides elastic force for the support and the stator, the magneto-rheological damper comprises an outer cylinder and a damper piston which is arranged in the outer cylinder and can move along a straight line relative to the outer cylinder, the magneto-rheological damper is arranged in the rotor, the outer cylinder is connected with the rotor, and the damper piston is suitable for being connected with the lower supporting seat. The scheme of the application is used for reducing the energy consumption of the suspension system, improving the performance, improving the safety redundancy and reducing the cost.

Inventors

HU HONGHUA
Request for anonymity
KONG FANFENG
LIU YEPENG
MA JUNYE

Assignees

星核磁通(上海)科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260318

Claims (10)

1. A suspension system, comprising a suspension system, a first suspension system, a second suspension system, and a first suspension system, characterized by comprising the following steps: a base including a seat and a lower support, one of the seat and the lower support being adapted to be connected to a vehicle body, the other being adapted to be connected to a wheel; The linear motor comprises a stator and a rotor, one end of the rotor is connected with the support, and one end of the stator, which is far away from the support, is connected with the lower support seat; An elastic member disposed between the support and the stator for providing elastic force between the support and the stator, and The magnetorheological damper comprises an outer cylinder and a damper piston which is arranged in the outer cylinder and can move along a straight line relative to the outer cylinder, the magnetorheological damper is arranged in the rotor, the outer cylinder is connected with the rotor, and the damper piston is suitable for being connected with the lower supporting seat.
2. The suspension system of claim 1 wherein a closed inner chamber is provided in the outer barrel, the damper piston is positioned in the inner chamber and divides the inner chamber into an upper subchamber and a lower subchamber, the damper piston includes a piston coil that is electrically energized to generate a magnetic field, the inner chamber is further filled with a magnetorheological fluid that can pass through the damper piston to flow between the subchambers.
3. The suspension system of claim 2, wherein a floating piston is movably disposed in the upper subchamber of the inner chamber, the floating piston dividing the upper subchamber into two separate spaces, the space adjacent to the damper piston being adapted to be filled with magnetorheological fluid and the space remote from the damper piston being adapted to be filled with gas at a set gas pressure.
4. The suspension system of claim 2, wherein the magnetorheological damper further comprises a piston rod and a guide sleeve, the guide sleeve is disposed in the outer barrel, one end of the piston rod is connected to the damper piston, the other end is adapted to be connected to the lower support base, and the piston rod is disposed through the guide sleeve.
5. The suspension system of claim 4 wherein said guide sleeve comprises a base and an outer frame connected, said base and said outer frame being both sealingly connected to the wall of said inner chamber, said base being provided with a buffer block at an end thereof facing said damper piston, said outer frame being provided with a first oil seal therein for contacting said piston rod and adapted to seal.
6. The suspension system of claim 5, wherein a second oil seal and a third oil seal are further disposed in the outer frame, the second oil seal and the third oil seal are both connected to the outer frame, and the second oil seal and the third oil seal are both sleeved on the outer wall of the piston.
7. The suspension system of claim 3 further comprising a connecting rod sleeved on the outer barrel and fixedly connected to the outer barrel, wherein an end of the connecting rod remote from the outer barrel is connected to the support.
8. The suspension system of claim 7 wherein an inflation nozzle is provided on the connecting rod, one end of the inflation nozzle being connected into a space adapted to be filled with gas to fill the space with gas.
9. The suspension system according to claim 1, wherein the outer wall of the outer cylinder is further sleeved with a magnetism isolating cylinder, the magnetism isolating cylinder is located between the outer cylinder and the mover, and the outer cylinder, the magnetism isolating cylinder and the mover are connected.
10. A vehicle, characterized by comprising: a vehicle body; Wheel, and The suspension system of any one of claims 1-9, connected between the vehicle body and the wheel.

Description

Suspension system and vehicle Technical Field The application relates to the technical field of vehicles, in particular to a suspension system and a vehicle. Background The vehicle suspension system is a key component for connecting a vehicle body and wheels, and has the core functions of buffering road surface impact and damping vibration, so that riding comfort, steering stability and running safety are ensured. With the development of intelligent electric vehicles, higher requirements are put forth on the performance of the suspension, and the conventional passive suspension is difficult to meet the requirements. The suspension system of the related art has difficulty in simultaneously satisfying the comprehensive requirements of high energy efficiency, high reliability, low cost and high performance due to technical limitations. Disclosure of Invention The application provides a suspension system and a vehicle, which are used for reducing the energy consumption of the suspension system, improving the performance, improving the safety redundancy and reducing the cost. The first aspect of the application provides a suspension system, which comprises a base, a linear motor, an elastic piece and a magnetorheological damper, wherein the base comprises a support and a lower supporting seat, one of the support and the lower supporting seat is suitable for being connected with a vehicle body, the other of the support and the lower supporting seat is suitable for being connected with a vehicle wheel, the linear motor comprises a stator and a rotor, one end of the rotor is connected with the support, one end of the stator, which is far away from the support, is connected with the lower supporting seat, the elastic piece is arranged between the support and the stator and provides elastic force between the support and the stator, the magnetorheological damper comprises an outer cylinder and a damper piston which is arranged in the outer cylinder and can move along a straight line relative to the outer cylinder, the magnetorheological damper is arranged in the rotor, the outer cylinder is connected with the rotor, and the damper piston is suitable for being connected with the lower supporting seat. The application realizes parallel connection arrangement by arranging the linear motor, the elastic piece and the magneto-rheological damper and integrating and cooperating with structural integration and functional distribution, and is integrated between a vehicle body and a wheel to form a ternary hybrid suspension system of 'mechanical passive (elastic piece) +electric control semi-active (magneto-rheological damper) +electric control full-active (linear motor)', and a superimposed passage can be formed. The suspension system adopts a working mode of work division and cooperation, wherein an elastic piece bears static load and low-frequency vibration buffering, a magnetorheological damper is responsible for real-time adjustment of medium-high frequency damping, and a linear motor executes high-precision main power compensation. The three work cooperatively, compared with a pure linear motor suspension, the normal energy consumption is reduced by more than percent, the thermal management burden is obviously reduced, the semi-active working mode of the magnetorheological damper under the inherent support and faults of the mechanical elastic piece is provided, the safety redundancy is high, the accurate and extremely-fast main power control capability of the linear motor and the rapid damping adjustment capability of the magnetorheological damper are combined, the control bandwidth is wide, the dynamic response is good, the performance is improved, the linear motor does not need to pursue extremely high continuous power density, a model with better cost is selected, and the whole system is in excellent balance among the performance, the cost and the energy consumption. In one possible implementation, a closed inner cavity is arranged in the outer cylinder, the damper piston is located in the inner cavity and divides the inner cavity into an upper subchamber and a lower subchamber, the damper piston comprises a piston coil capable of being electrified to generate a magnetic field, magnetorheological liquid is filled in the inner cavity, and the magnetorheological liquid can pass through the damper piston to flow between the two subchambers. In one possible implementation, a floating piston is movably arranged in the sub-cavity of the inner cavity, which is positioned above, the floating piston divides the sub-cavity above into two independent spaces, the space close to the damper piston is suitable for being filled with magnetorheological liquid, and the space far away from the damper piston is suitable for being filled with gas with set air pressure. In one possible implementation, the magnetorheological damper further comprises a piston rod and a guide sleeve, the guide sleeve is arranged in the outer cylinder, one end o