Disclosed are an in-vehicle stable platform system employing active suspension and a control method thereof, pertaining to the field of vehicle control. The system comprises a vehicle body, an in-vehicle stable platform, an inertial measurement device, an electronic control device, a servo controller set, multiple wheels, and suspension servo actuation cylinders and displacement sensors respectively corresponding to the wheels. The wheels are divided into three groups. Upper cavities of the suspension servo actuation cylinders in a group communicate with each other, and lower cavities of the suspension servo actuation cylinders in the group communicate with each other, such that the group of wheels collectively form a support point supporting the vehicle body, and the three groups of wheels form three support points. The heights of the three support points are controlled to control orientation of the vehicle body. An amount of extension/retraction of each suspension servo actuation cylinder required to cause the in-vehicle stable platform to return to a horizontal level is calculated according to a measured pitch angle and roll angle of the in-vehicle stable platform, and when a vehicle travels on an uneven road, the extension/retraction of each suspension servo actuation cylinder is controlled to cause the in-vehicle stable platform to be horizontal. The present invention has important and wide applications in the fields of wheeled cranes, elevating fire engines, ambulances, and high-end passenger cars.
In-vehicle stable platform system employing active suspension and control method thereof
2022-02-24
Patent
Electronic Resource
English
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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