Patent ID: 11926188
Assignee: AIRLOP (BEIJING) AUTOMOTIVE TECHNOLOGY CO., LT
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A system for adjusting height and damping force, wherein the system comprises a first connection part, a second connection part, at least one pneumatic valve, an air spring, an adjustable damper and a damping force adjustment device configured to adjust the damping force of the adjustable damper; the pneumatic valve, the air spring, the adjustable damper and the damping force adjustment device is arranged between a first connection part and a second connection part; the positions of the pneumatic valve, the air spring, the adjustable damper and the damping force adjustment device fit with each other; and the pneumatic valve is connected to the damping force adjustment device and the air spring, respectively;
the pneumatic valve is configured to collect at least one movement variable of the first connection part relative to the second connection part, and meanwhile, according to at least one of the collected movement variable and change in the movement variable, to control the air spring to inflate or deflate so as to realize height adjustment, and/or carry out gas driving on the damping force adjustment device to control the adjustable damper to output corresponding damping force, so as to realize adjustment of the size of the damping force of the adjustable damper;
wherein at least one movement variable comprises a positional relationship of the first connection part relative to the second connection part, and the positional relationship comprises at least one of a vertical relationship and/or a horizontal relationship;
the positional relationship of the first connection part relative to the second connection part being a target value for adjustment, and the positional relationship being provided by the total working stroke of the pneumatic valve, and the total working stroke including a total working stroke balance position and at least three displacement threshold ranges, wherein a second displacement threshold range contains a first displacement threshold range, and a third displacement threshold range contains the second displacement threshold range;
the positional relationship of the first connection part relative to the second connection part being within the first displacement threshold range, the pneumatic valve being configured to neither control the air spring to inflate or deflate nor to carry out the gas driving on the damping force adjustment device to control the adjustable damper to output a corresponding damping force, and the damping force of the adjustable damper being a preset basic damping force;
the positional relationship of the first connection part relative to the second connection part being between the first displacement threshold range and the second displacement threshold range, the pneumatic valve being configured to control the air spring to inflate or deflate, but not to carry out the gas driving on the damping force adjustment device to control the adjustable damper to output a corresponding damping force, and the damping force of the adjustable damper being a preset damping force;
the positional relationship of the first connection part relative to the second connection part being between the second displacement threshold range and the third displacement threshold range, the pneumatic valve being configured to control the air spring to inflate or deflate, and meanwhile carry out the gas driving on the damping force adjustment device to control the adjustable damper to output a first damping force, and the first damping force changing with the change of displacement;
the positional relationship of the first connection part relative to the second connection part exceeding the third displacement threshold range, and the pneumatic valve being configured to control the air spring to inflate or deflate and meanwhile carry out the gas driving on the damping force adjustment device to control the adjustable damper to output a second damping force;
wherein the second damping force is a damping force corresponding to an terminal impact protection coefficient, and the first damping force is located between the preset basic damping force and the second damping force.