The invention discloses a two-manner switchable active control suspension. The two manners include the first manner, namely, an active suspension manner in which suspension actuator hydraulic cylinders are independently controlled, and the second manner, namely, an active interconnected suspension manner in which a left hydraulic cylinder and a right hydraulic cylinder are controlled in a diagonal interconnected manner. Diagonal connection oil ways of coaxial actuator hydraulic cylinder cavities can be controlled to be opened and closed through a manner switching valve. The two-manner switchable active control suspension can be switched between the first manner and the second manner. When the lateral acceleration borne by an automobile is lower than a threshold value, the manner switching valve is closed, the oil ways through which the cavities of the left hydraulic cylinder and the right hydraulic cylinder are connected in the diagonal manner are cut off, electronic control hydraulic servo valves independently work at the same time and independently control operation force output, and the two-manner switchable active control suspension enters the active suspension control manner so that comfort can be improved; when the lateral acceleration reaches the threshold value, the manner switching valve is opened, the upper cavities and the lower cavities of the left hydraulic cylinder and the right hydraulic cylinder are interconnected in a crossed manner, and the two-manner switchable active control suspension enters the active interconnected suspension manner. The coaxial suspension can work through the electronic control hydraulic servo valve on only one side, and therefore the anti-roll performance is improved.
Two-manner switchable active control suspension
2015-10-28
Patent
Electronic Resource
English
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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