Compressed air supply system for vehicle compressed air installation and process for controlling said system
First Claim
1. A compressed air supply device (10.1) for vehicle compressed air systems which comprises, an air compressor (11) provided with an outlet, from said outlet a supply line (17) leads to an air drier (18), said air drier includes an inlet and an outlet side for supplying compressed air to a compressed air system,a safety valve (26) is connected to the supply line (17) to divert air to a pressure relief point (24) upstream of said air dryer and down stream of the air compressor,on the outlet side of the air drier (18) at least two compressed air consumer circuits, whose pressure is monitored by at least two pressure sensors, are connected to the supply line (17),control electronics (57) are provided, which are connected to the pressure sensors and at least one solenoid valve for controlling a regeneration of the air drier (18), and which control the compressed air supply of the air compressor (11),on the outlet side of the air drier (18), the supply line (17) branches into line branches that lead to at least two consumer circuits,a closing member disconnects the consumer circuits from the compressed air supply, the closing member being disposed in the respective line branch and switched by the programmable control electronics (57), the closing member is an overflow valve that is disposed in the line branch and is switched into the closed position with a pneumatic actuation means (41), and a 3/2-way pilot valve (44.1) is disposed in a control line of the pneumatic actuation means (41).
2 Assignments
0 Petitions
Accused Products
Abstract
An air compressor, from whose outlet a supply line leads to an air drier for the purpose of supplying the compressed air system. On the outlet side of the air drier, the supply line branches into a plurality of line branches that lead to at least two consumer circuits. The pressure in the consumer circuits can be monitored by pressure sensors. Furthermore, control electronics are provided which are connected to the pressure sensors. The consumer circuits can be disconnected from the compressed air supply by a closing member that is disposed in the respective supply line branch and can be switched by the programmable control electronics. By means of this, the supply of compressed air into the consumer circuits and the withdrawal of compressed air for transfer from one circuit into the others can be controlled by the control electronics. The compressed air supply device can be used in the vehicle compressed air systems of commercial vehicles.
100 Citations
27 Claims
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1. A compressed air supply device (10.1) for vehicle compressed air systems which comprises, an air compressor (11) provided with an outlet, from said outlet a supply line (17) leads to an air drier (18), said air drier includes an inlet and an outlet side for supplying compressed air to a compressed air system,
a safety valve (26) is connected to the supply line (17) to divert air to a pressure relief point (24) upstream of said air dryer and down stream of the air compressor, on the outlet side of the air drier (18) at least two compressed air consumer circuits, whose pressure is monitored by at least two pressure sensors, are connected to the supply line (17), control electronics (57) are provided, which are connected to the pressure sensors and at least one solenoid valve for controlling a regeneration of the air drier (18), and which control the compressed air supply of the air compressor (11), on the outlet side of the air drier (18), the supply line (17) branches into line branches that lead to at least two consumer circuits, a closing member disconnects the consumer circuits from the compressed air supply, the closing member being disposed in the respective line branch and switched by the programmable control electronics (57), the closing member is an overflow valve that is disposed in the line branch and is switched into the closed position with a pneumatic actuation means (41), and a 3/2-way pilot valve (44.1) is disposed in a control line of the pneumatic actuation means (41).
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13. A process for controlling a compressed air supply device (10.1) for vehicle compressed air systems which comprises controlling a control electronics (57) for controlling the compressed air supply of the compressed air supply system as a function of pressure in at least two compressed air consumer circuits,
monitoring the pressure by the control electronics (57) in at least two consumer circuits, operating the control electronics (57) to disconnect the consumer circuits from the compressed air supply as a function of a pre-programmed limit pressure that depends on the circuit, operating the control electronics (57) to connect at least two respective consumer circuits to the compressed air supply when the pressure falls below a limit pressure by a pre-programmed pressure difference, which comprises operating the control electronics (57) to select a consumer circuit for filling said consumer circuit with compressed air while at least one other consumer circuit is disconnected from the filling, and operating the control electronics (57) to connect the consumer circuit to the compressed air supply of the air supply system in a pre-programmed order.
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26. A process for controlling a compressed air supply device (10.1) for vehicle compressed air systems which comprises controlling a control electronics (57) for controlling the compressed air supply of the compressed air supply system as a function of pressure in at least two compressed air consumer circuits,
monitoring the pressure by the control electronics (57) in at least two consumer circuits, operating the control electronics (57) to disconnect the consumer circuits from the compressed air supply as a function of a pre-programmed limit pressure that depends on the circuit, operating the control electronics (57) to connect at least two respective consumer circuits to the compressed air supply when the pressure falls below a limit pressure by a pre-programmed pressure difference, and operating the control electronics (57) to control the filling of the consumer circuits as a function of the pressure in the circuits as well as an output level of a drive motor of the vehicle.
Specification