Hydraulic suspension apparatus and hydraulic suspension system and vehicle having same

A hydraulic suspension system, comprising a controller and a hydraulic suspension apparatus, the controller being configured to control a flow direction of liquid between a liquid storage apparatus and a reducer of the hydraulic suspension apparatus according to a status of a vehicle, to adjust a height of a vehicle body of the vehicle, wherein:

• a liquid storage apparatus disposed on the vehicle body and configured to store liquid;
• and
• a reducer having a reducer housing, a piston, and a piston rod, the reducer housing connected to an axle, the piston located in the reducer housing and dividing the reducer housing into an upper chamber and a lower chamber, an end of the piston rod connected to the piston, the piston rod connected to the vehicle body and comprising a liquid channel, the liquid channel communicated with the lower chamber and the liquid storage apparatus to enable liquid flowable between the liquid storage apparatus and the lower chamber.

A vehicle, comprising a hydraulic suspension system, the hydraulic suspension system comprising a controller and a hydraulic suspension apparatus, the controller being configured to control a flow direction of liquid between a liquid storage apparatus and a reducer of the hydraulic suspension apparatus according to a status of the vehicle, to adjust a height of a vehicle body of the vehicle, wherein:

• a liquid storage apparatus disposed on the vehicle body and configured to store liquid;
• and
• a reducer having a reducer housing, a piston, and a piston rod, the reducer housing connected to an axle, the piston located in the reducer housing and dividing the reducer housing into an upper chamber and a lower chamber, an end of the piston rod connected to the piston, the piston rod connected to the vehicle body and comprising a liquid channel, the liquid channel communicated with the lower chamber and the liquid storage apparatus to enable liquid flowable between the liquid storage apparatus and the lower chamber.