publication number DE102009034225 (A1)
publication date: 2011-02 -17
Inventor: HORWATH JOCHEN [DE]; SCHNITZER Detlef [DE] + (Horwath, JOCHEN; SCHNITZER, DETLEF)
Applicant: DAIMLER CHRYSLER AG [DE] + (DAIMLER AG)
Classification:
International: B28C5/42; B60P3/16; B60W10/06; B60W10/30; B60W30/18
European: B60W10/06; B60W10/30; F16H61/475
Application number: 20,090,722 DE200910034225
Priority number (s) : DE200910034225 20,090,722
The EPA is not responsible for the accuracy of data originating from other authorities than the EPO, and thus in particular not liable for its completeness, timeliness or fitness for a particular purpose. Information, please refer to the respective patent authorities.
translate this text description of DE 102009034225 (A1)
[0001] The present invention relates to a drive control device according to the preamble of claim 1
[0002] DE 29 04 107 A1 is already a drive system with a prime mover, a PTO that is driven by the drive machine, known. Further, power control devices, in particular motor vehicle drive control apparatus, comprising a main drive control unit that is provided to control the main drive, and an additional drive control unit for controlling the planned with the main drive ancillary drive known.
[0003] The invention is particularly based on the objective of providing a drive control device, a particularly advantageous Setting of the auxiliary drive allows. It is achieved according to the invention by the features of claim 1. Further embodiments result from the dependent claims and the independent side claims.
[0004] The present invention relates to a drive control device, especially motor vehicle drive control device, comprising a main drive control unit that is provided for controlling a main drive, and an additional drive control unit which is to control a provided with the main drive ancillary drive.
[0005] It is proposed that the main drive control unit and the secondary drive controller are intended, in at least one operating state of at least share a characteristic size. This allows an adjustment of the auxiliary drive is advantageously adapted to parameters of the main drive, whereby a particularly advantageous adjustment can be made of the PTO. In a control device it is a device for controlling and / or are understood to regulate. A "controller" is intended to further a unit for controlling and / or scheme to be provided, in particular an electronic unit with a control program for controlling and / or control of a further adjustable unit. "Provided" is especially programmed specially equipped and / or designed to be understood. A "characteristic" is to continue a service provided by a control unit and / or specific value to be understood, is associated with a physical size of the main drive and / or the PTO. "Swap" In particular, a unidirectional and / or bidirectional transmission of the characteristic size can be understood.
[0006] It is further proposed that the main drive control unit is arranged to provide at least one parameter, in at least one operating state, a state change describes the main drive. This allows the PTO control device particularly advantageous to react to change the main drive. "Posting" In particular, should it be understood that the main drive control unit, a characteristic size transmitted, which can be read by the PTO control unit.
[0007] In a preferred embodiment, the PTO controller designed at least partly as a pump control unit which is provided for adjusting a pumping power. Such a design, a particularly advantageous side drive control can be realized by a constant pump power can be provided, the drive-related variations can be advantageously compensated by the adjustment means of the PTO control unit.
[0008] Further, it is advantageous if the main drive control unit is designed as a gear and / or engine control unit, which provided for is a prime mover and / or a main transmission control. This allows the control of the PTO are advantageously adapted to the driving machine or the main gear of the main drive. A "main transmission" is to be understood essentially a gear that is provided for adjusting a transmission ratio between the engine and drive wheels. Basically, the main gear have different designs, in particular a design as a commercial vehicle transmissions and / or as a passenger vehicle transmission.
[0009] is advantageous for the PTO control unit provided to the PTO in accordance with a characteristic size of the Engine stop. This allows an adjustment of the auxiliary drive is advantageously adapted to the main drive.
[0010] It is particularly advantageous when the main drive control unit is arranged to provide an auxiliary drive for the effective parameter, which describes a speed and / or a change in speed. This allows an adjustment of the PTO are advantageously adapted quickly to speed changes. In particular, by the pumping action of the PTO are advantageously adapted to a change in the speed of the drive, whereby a particularly advantageous control can be achieved for a PTO provided by the operating pressure.
[0011] Advantageously, the PTO control unit provided to the PTO reciprocally adjust to the PTO for the effective characteristic size. Thus, a speed-induced change in the performance of the power take-off to be adjusted advantageously. In particular, can be dispensed with an elaborate control of the power of the auxiliary drive, by means of the power change at a speed change is counteracted. Particularly advantageous because it is also possible setting of a slow-reacting PTO be achieved can be beneficial in responding quickly to speed-related changes.
[0012] It is also suggested that the PTO control unit is intended to set an image captured by the PTO torque. Via a torque setting, the performance of the auxiliary drive can be adjusted advantageously. Preferably, the captured moment on by the PTO output torque is set. Basically, a torque adjustment is also possible by adjusting the drive between the main and auxiliary drive transmitted torque.
[0013] In an embodiment of the invention, the drive control device at least one between the main drive control unit and the auxiliary drive control unit has arranged data line, which is provided for connection of at least one other controller. This allows the PTO advantageous to be connected to an existing data transmission system, whereby a separate data line, which is intended only for exchanging data between the main drive control unit and the auxiliary drive control unit can be dispensed with. Particularly advantageously, the data line as a CAN-bus line is formed, creating a simple copy may be the characteristic size.
[0014] It is also proposed that the by-driving control unit, a memory unit and at least one in the storage unit has stored characteristic size, which is intended to set the PTO as a function of the exchanged characteristic size. Thus the setting of the auxiliary drive can be advantageously be adapted to various configurations of the PTO. By "at least one stored characteristic size" is in particular a characteristic size or a set of characteristics be understood. In particular, including a number of parameters can be understood from existing map and / or defined by a characteristic size dependence. Preferably, the at least one parameter of the bedatbar. In particular, it is advantageous if the PTO control unit is provided to change the characteristic size independently and in particular match.
[0015] Further, a drive system with a prime mover, the at least one engine, with a will PTO that is driven by the engine, and an additional drive control unit that is provided for control of the PTO proposed, the PTO control unit for setting the auxiliary drive is provided in at least one operating condition to evaluate at least one characteristic size of the engine. Thus, a drive system are designed with a novel drive control device particularly advantageous, thereby advantageously adjustable drive system can be realized with a PTO.
[0016] Advantageously, the PTO at least one auxiliary unit which is connected to the prime mover of the main drive. Thus, a particularly simple auxiliary drive is provided. More preferably, the auxiliary unit is designed as a pump.
[0017] Other advantages will become apparent from the following description. In the drawings, an embodiment of the invention. The drawings, the description and the claims contain numerous features in combination. Those skilled in the art will expediently consider the characteristics individually as well and combine them into meaningful combinations.
show [0018] where:
[0019] 1 is a schematic representation of a drive system with a novel drive control device
[0020] 2 is a schematic representation of a first setting of a secondary drive and
[0021] 3 is a schematic representation of a second setting of the PTO.
[0022] 1 schematically shows a drive system of a commercial vehicle. The drive system includes a main drive 11 with a drive machine 15 and a main transmission 16. The main transmission 16 is preceded by a clutch 22nd The drive machine 15 is designed as an internal combustion engine. to the main transmission 16 is designed as a commercial vehicle transmissions, defined by the ratios set between the engine 15 and drive wheels 23 are. Next, the drive system includes an auxiliary drive 13, which includes an auxiliary unit 21, which by means of the engine driven permanent.
[0023] The auxiliary unit 21 of the auxiliary drive 13 is designed as a pump which is directly connected to the drive machine 15 of the main drive 11. A mechanical connection of the auxiliary unit 21 to the engine 15 has a constant transmission ratio. The gear ratio is through a design-related and non-adjustable. A speed of motor 15 and a rotational speed of the auxiliary drive 13 have thus always a constant speed ratio to another. The auxiliary unit 21 of the side drive 13 absorbs a portion of the output from the drive engine 15 torque and uses it to drive an associated with the auxiliary drive 13 device.
[0024] The commercial vehicle is designed as a concrete mixer. The auxiliary drive 13 is provided for driving a concrete mixing drum. Using the form of a pump secondary unit 21 is a hydrostatic drive 24 is designed for the concrete mixing drum. The auxiliary unit 21 is designed as a variable, the pumping power can be adjusted at a constant speed. A driven by the auxiliary unit 21 Motor 25 is designed as a piston motor. The form of a pump motor 21 and the auxiliary unit 25 form the hydrostatic drive.
[0025] To control the main drive 11 and the auxiliary drive 13, the drive system, a drive controller with a main drive control unit 10 and a secondary drive control unit 12. The main drive control unit 10 is designed as an engine and transmission control unit, are controlled by the engine 15 and the main transmission 16. The main drive control unit 10 has several parts. It has at least two control units 19, 20, are means of at least one data line 26 connected to each other. About the data line 26, the two control units 19, 20 for an exchange of parameters. The data line 26 is configured as a CAN bus cable can be connected to the other, not shown control units.
[0026] The PTO control unit 12 is at least to set the pumping capacity of the pump is designed as a secondary unit 21 are provided. Since a captured moment of the auxiliary unit 21 is directly dependent on the pumping power of the form of a pump secondary unit 21, can be set from the side drive 13 recorded the moment via the PTO control unit 12.
[0027] The main drive control unit 10 and the side-drive control unit 12 communicate with each other. If you are on a data line 18 connected to each other. The data line 18 is designed as a CAN-bus line, are connected by means of the other, not shown, control units, such as an ABS control unit and / or ESP control unit. The data line 26, by means of the control units 19, 20 are connected together, and the data line 18 by means of the main drive control unit 10 and the side-drive control unit 12 are connected together, in one piece and use a similar data protocol. Nevertheless, even though a data line / CAN bus connection is possible and may include multiple bus systems via gateways are connected to each other. The gateways can make it, reactions between different data protocols. exchange via the data line 18, the main drive control unit 10 and the side-drive control unit 12 at least one characteristic of size 14.
[0028] The main drive control unit 10 provides various parameter, in particular the characteristic size 14 ready. By means of the indicators are operating states of the main drive 11 described. The main drive control unit 10 provides various parameters that are provided for the main transmission 16, such as a parameter, the switching of the main transmission 16 describes. Next is the main drive control unit provides 10 different parameters, which are provided for the prime mover 15, such as the characteristic size 14, which describes a rotational speed of the engine 15, and / or a parameter, which describes an output by the drive machine 15 currently 17th Moreover, from the main drive control unit 10 is a characteristic size provided that describes an imminent, sudden change in speed of the speed of motor 15, as occurs, for example during a switching operation of the main transmission 16.
[0029] Using the parameters provided by the main drive control unit 10, described various changes of state of the main drive 11, such as a change in speed of the engine 15 or a switching operation of the main transmission 16. Since the auxiliary drive 13 is directly connected to the drive machine 15, the drive from the main control unit 10 provided parameters, especially the characteristic size of 14, the speed of motor 15 and thus the speed change the drive machine 15 describes effective for the secondary drive 13. Physical variables that are associated with the parameters act directly on the secondary drive 13
[0030] The PTO control unit 12 provides the secondary drive 13 at least partially a function of the parameters that are effective for the auxiliary drive 13, a. The indicators are designed as parameters of the engine 15th The PTO control unit 12 adjusts depending on the parameters provided by the main drive control unit 10, the pumping capacity of the auxiliary unit designed as a pump 21st The PTO control unit 12 moves the side drive 13 reciprocating In addition to the drive 13 effective parameter, in particular the characteristic size 14
[0031] For example, during a switching operation of the main transmission 16, which changes the speed of the drive engine 15 abruptly, the main drive control unit 10 with a switching signal for the main transmission 16, the characteristic size 14 available, which describes the proposed change in speed of the engine 15th The PTO control unit 12 which evaluates the characteristic size 14, has a storage unit stored in the indicators are that form a map. The map describes the dependence of the pumping capacity of the auxiliary unit 21 in dependence on the speed of the engine 15th By means of the characteristic field adjusted 21st the PTO control unit 12, the pumping capacity of the auxiliary unit
[0032] The PTO control unit 12 has two different operating programs. In a first operating program, the PTO control unit 12 during the switching process reduces the main transmission 16, the addition to the drive 13 supplied torque 17th To this end they reduced during the switching process, the pumping capacity of the auxiliary unit designed as a pump 21st In a second operating program, the PTO control unit holds 12 during the switching operation of the main transmission 16, the pump power almost constant by adjusting the pump power of the expected speed of the engine 15th Operating schedules can be obtained from the main drive control unit 10. Alternatively, the PTO control unit 12, the operating programs independently select.
[0033] increased in a switching operation from a high gear to a lower gear, the gear ratio of the main transmission 16 (see 2). To maintain speed, the speed of the engine 15, which is described by the characteristic size 14, in such a switching operation also increased. At the same time carried out by the main drive control unit 10 increases the speed of the drive machine 15 reduces the side-drive control unit 12 captured by the by-moment drive 13 17 By reducing the pumping capacity of the auxiliary unit 21st A gradient by means of which the pump power is changed, adapted to a gradient of speed change. During the switching process, the PTO control unit 12 provides the pump power and therefore it is the by-supplied drive 13 17, a moment to a value that is smaller than a normal set point. After the switching process, the PTO control unit 12, the pump power increases again, which is also the co-fed drive 13 moment 17 again increased. The setting of the pump power is carried out in response to a switching signal 27, by which the switching process is initiated, and that of the main drive control unit 10 as the characteristic size is provided. Also provides the main drive control unit 10 is a characteristic size that is indicated as a further switching signal 28, the end of the switching process and the addition of the drive control unit 12 also evaluated.
[0034] In a reduced switching operation from a low gear to second gear, the gear ratio of the main transmission 16 (see 3). To maintain speed, the speed of the engine 15, which is described by the characteristic size 14, in such a switching operation also reduced. At the same time carried out by the main drive control unit 10 to reduce the speed of the engine 15 increases the In addition to drive control unit 12, the addition of the drive 13 recorded the moment 17, by increasing the pumping capacity of the auxiliary unit 21st The gradient by means of which the pumping capacity of the auxiliary unit 21 is changed, adapted to the gradient of change in speed of the engine 15th During the switching process, the PTO control unit 12 provides the pump power and therefore it is the by-supplied drive 13 17, a moment to a value that is greater than the normal set point. After the switching process, the PTO 12, the controller reduces pump power again, and thereby reduce the addition to the torque supplied to drive 13 17 again. The main drive control unit 10 also provides for such a switching operation the switching signals 27, 28 ready to be received by the PTO control unit 12 and evaluated.
QUOTES INCLUDED IN THE DESCRIPTION
[0035] This list of references cited by the applicant was automatically generated and is intended solely to improve the reader's included. The list is not part of the German patent or utility model. The DPMA is not responsible for any errors or omissions.
cited patent literature
[0036]
- DE 2904107 A1 [0002]
drive controller
Technische und wissenschaftliche Übersetzungen
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