Suspension system of axle load switching between rear axle and leading or trailing axle
A technology for guiding shafts and supporting shafts, used in suspension, elastic suspension, transportation and packaging, etc.
Active Publication Date: 2013-12-25
MAN NUTZFAHRZEUGE AG
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- Abstract
- Description
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- Application Information
AI Technical Summary
Problems solved by technology
A fixedly predefined axle load ratio in this way has the disadvantage that the pneumatic suspension system of a utility vehicle can be configured in each case according to legal regulations or according to technical standards
However, the vehicle's justification may always be exclusively based on legal requirements
Method used
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Embodiment Construction
[0037] figure 1 Diagram showing the additional axle load switching function of a utility vehicle pneumatic suspension system. By using the shown means for carrying out the switchover of the axle load, it is possible to load the driven rear axle with the pneumatic suspension with the technically maximum possible weight while ensuring that the legally prescribed axle load ratios or leading or supporting axles are not exceeded Shaft load of 10. In this regard, the compressed air supply circuit for supplying the two rear and leading axles of a heavy transport tractor is shown in figure 1 middle.
[0038] The diagram shown shows a compressed air supply such as a pneumatic spring bellows of a driven twin-shaft assembly with a leading shaft 10 , for example used in a heavy transport tractor. An important feature of the described technical solution is that during operation of the utility vehicle, the 3 / 2-way valve 11 can be switched by means of the reversing valve 3 so that the pne...
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The invention relates to a suspension system of axle load switching between a rear axle and a leading or trailing axle. The suspension system includes a rear axle and a leading or trailing axle with a pneumatic suspension. The axles are provided with at least one compressed air loop having at least one pneumatic bellows, wherein at least one pressure switch for bellows pressure of the driven rear axle is arranged, and at least one 3 / 2 through valve is distributed to the rear axle and can be pneumatically switched through a reversing valve connected onto a control line. The pressure ratio valve of the rear axle is connected to the 3 / 2 through valve, and a control unit is provided to vary an axle ratio between the driven rear axle and the leading and / or trailing axle based on the detected bellows pressure. The two solenoid valves are connected parallely onto the control line of the reversing valve and can be switched by an electrical power suppliable changeover relay based on the bellows pressure to enable the control line to ventilate or exhaust during the switching.
Description
technical field [0001] The invention relates to a pneumatic suspension system of a utility vehicle having a driven rear axle with pneumatic suspension and a guide shaft and / or a bearing shaft assigned to the driven rear axle. The axles each have at least one compressed air circuit with at least one pneumatic spring bellows, wherein at least one pressure switch and at least one reversing valve for sensing bellows pressure at the driven rear axle are provided, at least one reversing valve Directional valves are assigned to the rear axle and can be switched pneumatically via control lines. The 3 / 2-way valve of the rear axle is then connected to the reversing valve, and in addition, the control unit is arranged and implemented in such a way that the axle load ratio between the driven rear axle and this assigned leading and / or supporting axle can be determined according to the sensed To the bellows pressure changes. Background technique [0002] Pneumatic suspension systems are...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B60G17/056
CPCB60G17/0523B60G2300/0262B60G2300/402B60G2400/51222B60G2400/61B60G2401/20B60G2500/204B60G2600/02B60G2800/0192B60G2800/915B60G17/056B62D61/12
Inventor W.乌尔M.齐默
Owner MAN NUTZFAHRZEUGE AG