1. A method for operating a transport device having a primary energy source, an energy management system and at least one electronic energy consumer, said method comprising the steps of:
producing a first item of information regarding a future energy requirement of at least part of the transport device using an item of information regarding at least one transport measure to be carried out, said future energy requirement including at least one peak load;
providing the first item of information to the energy management system;
changing a sequence of transport measures provided by the transport device using the first item of information, so that storage and use of energy by the transport device is managed using the first item of information;
comparing the future peak load to a maximum possible peak load;
managing a relationship between energy consumption by the transport device and maximum possible peak load so that the future peak load does not exceed the maximum possible peak load; and
producing a second item of information regarding the future energy requirement of at least part of the transport device.
2. The method of claim 1, wherein the first item of information is supplied by the energy management system.
3. The method of claim 1, wherein the energy management system manages the energy used by the transport device using fuzzy logic.
4. The method of claim 3, wherein the first item of information includes a load prognosis based on past usage data.
5. The method of claim 1, further comprising the step of optimizing the energy consumption of a plurality of transport devices.
6. The method of claim 1, further comprising the step of temporarily switching off the primary energy source.
7. The method of claim 1, further comprising the steps of changing future planned operating states of the transport device based on the first item of information.
8. The method of claim 1, wherein the sequence of transport measures is changed by changing the provision of energy by an energy buffer store as a function of the first item of information, or by changing energy consumption by the energy consumer as a function of the first item of information.
9. The method of claim 1, further comprising the step of changing the sequence of transport measures provided by the transport device using the item of information, so that storage and use of energy by the transport device is managed using the second item of information regarding the future energy requirement.
10. The method of claim 1, wherein at least one of the first or second item of information is generated or stored by the energy management system.
11. The method of claim 1, further comprising the step of modifying the energy consumption of the transport device by modifying the at least one transport measure so that the future peak load determined for the modified transport measure does not exceed the maximum possible peak load.
12. The method of claim 1, further comprising the step of increasing the maximum possible peak load by increasing the energy fed into an energy buffer store so that the future peak load does not exceed the maximum peak load.
13. A transport device, comprising:
a primary energy source;
at least one electronic energy consumer; and
an energy management system, said energy management system including:
means for producing a first item of information regarding a future energy requirement of at least part of the transport device using an item of information regarding at least one transport measure to be carried out, said future energy requirement including at least one peak load;
means for providing the first item of information to the energy management system;
means for changing a sequence of transport measures provided by the transport device using the first item of information, so that storage and use of energy by the transport device is managed using the first item of information;
means for comparing the future peak load to a maximum possible peak load;
means for managing a relationship between energy consumption by the transport device and maximum possible peak load so that the future peak load does not exceed the maximum possible peak load; and
means for producing a second item of information regarding the future energy requirement of at least part of the transport device.
14. The transport device of claim 13, further comprising means for energy recovery, said means for changing the sequence of transport measures provided by the transport device being adapted to modify the energy recovery provided by said means for energy recovery.
15. The transport device of claim 14, wherein said means for energy recovery includes an energy buffer store.
16. The transport device of claim 13, further comprising an automated guided vehicle for transporting goods or people.
17. The transport device of claim 13, wherein at least one electronic energy consumer is an electrical drive.
18. The transport device of claim 13, wherein the sequence of transport measures is changed by changing the provision of energy by an energy buffer store as a function of the first item of information.
19. The device of claim 13, wherein the sequence of transport measures is changed by changing energy consumption by the energy consumer as a function of the first item of information.
20. The device of claim 13, further comprising the step of modifying the energy consumption of the transport device by modifying the transport measure so that the future peak load determined for the modified transport measure does not exceed the maximum possible peak load.
21. The device of claim 13 further comprising the step of increasing the maximum possible peak load by increasing the energy fed into an energy buffer store so that the future peak load does not exceed the maximum peak load.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for operating an electrohydraulic brake system for motor vehicles of the type having a wheel-specific closed-loop brake control function and hydraulically actuable wheel brakes, which are each disconnectably connected to an electrically controllable pressure supply device via an inlet valve, the pressure supply device having a cylinder-piston arrangement with a hydraulic pressure space, and a piston which can be moved by an electromechanical actuator in order to set a brake system pressure (Psys), and which are each connected or can be connected to a pressure medium reservoir via an outlet valve, wherein a wheel-specific setpoint wheel pressure (pi) is specified for each wheel brake, and having closed-loop pressure control of the brake system pressure (Psys) of the pressure supply device, comprising the steps of carrying out at certain times an open-loop control of the pressure medium volume which is output by the pressure supply device instead of the closed-loop pressure control of the brake system pressure, and carrying out a switchover from closed-loop pressure control of the brake system pressure to the open-loop control of the pressure medium volume in accordance with the setpoint wheel pressures (pi) which are specified for the wheel brakes.
2. The method as claimed in claim 1, further comprising in that, in the closed-loop pressure control of the brake system pressure (Psys), the brake system pressure (Psys) adjusting the highest setpoint wheel pressure or to a setpoint pressure higher than the highest setpoint wheel pressure by a specified amount (\u0394).
3. The method as claimed in claim 1 further comprising carrying out in that the open-loop control of the pressure medium volume when a wheel-specific brake pressure increase is to be carried out at for at least one wheel brake.
4. The method as claimed in claim 1, further comprising in that, during the open-loop control of the pressure medium volume, moving the piston by a position value (\u0394s), with the result that a pressure medium volume (\u0394V, \u0394Vsum) determined by means of the specified setpoint wheel pressures is displaced into at least one wheel brake.
5. The method as claimed in claim 4, further comprising determining the position value (\u0394s) by using at least one pressurevolume characteristic specified for the wheel brake or the wheel brakes.
6. The method as claimed in claim 4 further comprising in that, in the case of a brake pressure increase at two or more wheel brakes simultaneously, determining the position value (\u0394s) by a sum of pressure medium volumes of the wheel brakes (\u0394Vsum) which is required for the wheel brakes.
7. The method as claimed in claim 6, further comprising in that a wheel-specific brake pressure increase at the wheel brakes is provided through a choice of a wheel-specific opening duration for the corresponding inlet valves.
8. The method as claimed in claim 1 further comprising carrying out after the completion of a phase of the open-loop control of the pressure medium volume, a phase of the closed-loop pressure control of the brake system pressure (Psys).
9. The method as claimed in claim 8, further comprising switching the system from the open-loop control of the pressure medium volume to the closed-loop pressure control of the brake system pressure when either holding or reduction of the brake pressure is to be carried out for each of the wheel brakes.
10. The method as claimed in claim 8 further comprising specifying a deviation (\u0394Perr) between the measured brake system pressure (Psys) and the brake system pressure by the closed-loop brake control function, and determining at the beginning of the closed-loop pressure control phase, and carrying out a correction of a model for open-loop control (303) of the pressure medium volume using the deviation.
11. The method as claimed in claim 10, further comprising determining a wheel-specific correction factor, by using the deviation (\u0394Perr) and of a pressurevolume characteristic, said and determining the factor in accordance with the wheel brake pressure.
12. The method as claimed in claim 11, further comprising determining a corrected pressure medium volume (\u0394Vkorr) for a wheel brake in a subsequent phase of the open-loop control of the pressure medium volume using the correction factor (Kmod, Kmod,i).
13. A brake system for motor vehicles comprising:
a wheel-specific closed-loop brake control function,
a plurality of hydraulically actuable wheel brakes,
an electrically controllable pressure supply device, which having a cylinder-piston arrangement with a hydraulic pressure space, the and a piston which can be moved by an electromechanical actuator, wherein each of the wheel brakes is disconnectably connected to the pressure supply device via an inlet valve and is connected or can be connected to a pressure medium reservoir via an outlet valve,
a first detection device for determining a brake system pressure (Psys) of the pressure supply device,
a second detection device for determining a position(s) of the pressure supply device, actuator,
an electronic open-loop and a closed-loop control unit for controlling the electromechanical actuator, and
a control unit configured to carry out the steps of at certain times providing an open-loop control of the pressure medium volume which is output by the pressure supply device instead of a closed-loop pressure control of the brake system pressure, and carrying out a switchover from the closed-loop pressure control of the brake system pressure to the open-loop control of the pressure medium volume in accordance with a setpoint wheel pressures (pi) which are specified for the wheel brakes.