This application relates to the vibration control field, and in particular, to vibration control technologies in the field of new energy vehicles and intelligent vehicles, and discloses an air spring, a vibration isolation apparatus, a sensor assembly, a vibration isolation control method, and a vehicle. The air spring includes an airway and at least two air chambers, where the at least two air chambers include a first air chamber and a second air chamber, the first air chamber and the second air chamber are distributed at an interval along the airway, the first air chamber is connected to the airway by using a first control valve, and the second air chamber is connected to the airway by using a second control valve.

This application relates to the vibration control field, and in particular, to vibration control technologies in the field of new energy vehicles and intelligent vehicles, and discloses an air spring, a vibration isolation apparatus, a sensor assembly, a vibration isolation control method, and a vehicle. The air spring includes an airway and at least two air chambers, where the at least two air chambers include a first air chamber and a second air chamber, the first air chamber and the second air chamber are distributed at an interval along the airway, the first air chamber is connected to the airway by using a first control valve, and the second air chamber is connected to the airway by using a second control valve.

An adjustable gas shock has a staged softening which includes a gas piston assembly having an gas piston. A piston hollow is formed on the frame and the gas piston is glidingly installed in the piston hollow defining an upper air chamber above the piston and a lower air chamber below the piston. The air piston moves in response to vibrations. A piston shaft hollow is formed on a piston shaft formed on the air piston. The piston shaft hollow has a piston shaft plug glidingly in the piston shaft hollow. The piston shaft plug is spring biased to push air out of the piston shaft hollow. A side opening hollow is formed on the frame. The side opening hollow has a side opening plug glidingly installed in the side opening hollow.

A shock absorber is disclosed having a pressure tube forming a working chamber, and a piston assembly slidably disposed within the pressure tube. The piston assembly may divide the working chamber into upper and lower working chambers. The piston assembly may have a piston body defining a first fluid passage extending therethrough and a first valve assembly controlling fluid flow through the first fluid passage. A second fluid passage, separate from the first fluid passage, extends from one of the upper and lower working chambers to a fluid chamber defined at least in part by the pressure tube. A plurality of digital valve assemblies are included and configured to exclusively control all fluid flow through the second fluid passage, and thus all fluid flow between the one of the upper and lower working chambers to the fluid chamber.

A shock absorber is disclosed having a pressure tube forming a working chamber, and a piston assembly slidably disposed within the pressure tube. The piston assembly may divide the working chamber into upper and lower working chambers. The piston assembly may have a piston body defining a first fluid passage extending therethrough and a first valve assembly controlling fluid flow through the first fluid passage. A second fluid passage, separate from the first fluid passage, extends from one of the upper and lower working chambers to a fluid chamber defined at least in part by the pressure tube. A plurality of digital valve assemblies are included and configured to exclusively control all fluid flow through the second fluid passage, and thus all fluid flow between the one of the upper and lower working chambers to the fluid chamber.

A damper assembly includes a housing and rod supported by the housing. A piston assembly is attached to the rod, and is positioned to separate an interior chamber of the housing into a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate that defines at least one orifice. The orifice interconnects the first fluid chamber and the second fluid chamber in fluid communication. The damper assembly includes a piezoelectric device that is moveable between a disengaged position and an engaged position, in response to a control signal. When disposed in the disengaged position, the piezoelectric device does not affect fluid flow through the at least one orifice. When disposed in the engaged position, the piezoelectric device does affect fluid flow through the at least one orifice, to adjust a damping rate of the piston assembly.

A damper assembly includes a housing and rod supported by the housing. A piston assembly is attached to the rod, and is positioned to separate an interior chamber of the housing into a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate that defines at least one orifice. The orifice interconnects the first fluid chamber and the second fluid chamber in fluid communication. The damper assembly includes a piezoelectric device that is moveable between a disengaged position and an engaged position, in response to a control signal. When disposed in the disengaged position, the piezoelectric device does not affect fluid flow through the at least one orifice. When disposed in the engaged position, the piezoelectric device does affect fluid flow through the at least one orifice, to adjust a damping rate of the piston assembly.

A tube having sealing ring grooves formed by a sequential rotational process and a shock absorber including the tube, in which durability of a sealing ring fitted in each of the sealing ring grooves is enhanced. An inclination angle (1) formed with respect to a plane (PL1) perpendicular to an axis of a separator tube by a side surface of the sealing ring groove, which is located on an opening end side of the separator tube, is set to 8 or more. With this, a maximum tensile stress to be applied to an O-ring can be reduced to be smaller than a maximum tensile stress in a case of using a backup ring. As a result, the durability of the O-ring can be set equivalent to or enhanced to be higher than durability in the case of using the backup ring.

A tube having sealing ring grooves formed by a sequential rotational process and a shock absorber including the tube, in which durability of a sealing ring fitted in each of the sealing ring grooves is enhanced. An inclination angle (1) formed with respect to a plane (PL1) perpendicular to an axis of a separator tube by a side surface of the sealing ring groove, which is located on an opening end side of the separator tube, is set to 8 or more. With this, a maximum tensile stress to be applied to an O-ring can be reduced to be smaller than a maximum tensile stress in a case of using a backup ring. As a result, the durability of the O-ring can be set equivalent to or enhanced to be higher than durability in the case of using the backup ring.

An adjustable gas shock has a staged softening which includes a gas piston assembly having an gas piston. A piston hollow is formed on the frame and the gas piston is glidingly installed in the piston hollow defining an upper air chamber above the piston and a lower air chamber below the piston. The air piston moves in response to vibrations. A piston shaft hollow is formed on a piston shaft formed on the air piston. The piston shaft hollow has a piston shaft plug glidingly in the piston shaft hollow. The piston shaft plug is spring biased to push air out of the piston shaft hollow. A side opening hollow is formed on the frame. The side opening hollow has a side opening plug glidingly installed in the side opening hollow.