Dynamic weight shift suspension system
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorsChristopher D. Blessing, Christopher P. Lewark, Jason M. Sidders
Life of this patent
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Abstract
A dynamic weight shift suspension system for shifting the tandem axle loads on a vehicle. The system includes a first airbag connected between the drive axle of a tandem and the vehicle frame, and a second airbag connected between a tag axle of a tandem and the vehicle frame. The system also has a mechatronic control unit comprising at least one port and at least one solenoid. The mechatronic control unit is in direct fluid communication with the airbags and an air supply via fluid communication lines.
Claims13
A dynamic weight shift suspension system, comprising:
- a first airbag connected between a drive axle of a tandem and a vehicle frame;
- a second airbag connected between a tag axle of said tandem and said vehicle frame;
- and
- a mechatronic control unit (MCU) in direct fluid communication with said first airbag, said second airbag and an air supply via fluid communication lines;
- wherein said mechatronic control unit comprises four ports and a control passage located within a pneumatic control portion of said mechatronic control unit, said ports comprise a supply port, a drive axle port, a deflate port, and a tag axle port;
- wherein each of said ports and said control passage comprises a respective solenoid, said solenoids receive a signal to open or close said respective port or said control passage;
- and
- wherein under a normal operation mode the solenoid configurations for said supply port and said deflate port are both off, and the solenoid configurations for said drive axle port, said control passage and said tag axle port are all on.
A dynamic weight shift suspension system, comprising:
- a first airbag connected between a drive axle of a tandem and a vehicle frame;
- a second airbag connected between a tag axle of said tandem and said vehicle frame;
- and
- a mechatronic control unit (MCU) in direct fluid communication with said first airbag, said second airbag and an air supply via fluid communication lines;
- wherein said mechatronic control unit comprises four ports and a control passage located within a pneumatic control portion of said mechatronic control unit, said ports comprises a supply port, a drive axle port, a deflate port, and a tag axle port;
- wherein each of said ports and said control passage comprises a respective solenoid, said solenoids receive a signal to open or close said respective port or said control passage;
- and
- wherein under a tractive operation mode the solenoid configuration for said control passage is off, and the solenoid configurations for said supply port, said drive axle port, said deflate port and said tag axle port are all on.
Dependencies are inferred from the claim text.