System for a vehicle drive and operating method for an oil module of a vehicle drive

Abstract

The present disclosure relates to a system (100) for a vehicle drive, comprising: an acceleration determination module (110) which is configured to determine a current acceleration (ax, ay) of the vehicle; and a volumetric flow rate determination module (120) which is configured to determine acceleration-dependent intake information for at least one oil pump of the vehicle drive on the basis of the current acceleration (ax, ay) of the vehicle, and to determine, on the basis of the acceleration-dependent intake information, a current volumetric flow rate (P*) of the at least one oil pump.

Description

[0001] 24-1085

[0002] System for a vehicle drive and operating procedure for an oil module of a vehicle drive

[0003] The present disclosure relates to a system for a vehicle drive, a vehicle with such a system, an operating method for an oil module of a vehicle drive, and a storage medium for executing the operating method. The present disclosure relates in particular to a model representation of the intake capacity of a pump in a drive train of a vehicle, especially a motor vehicle.

[0004] State of the art

[0005] Vehicle engines generally have an oil pump that ensures all moving parts of the engine are continuously supplied with lubricating oil. This is crucial for reducing friction, minimizing wear, and aiding heat dissipation. The oil pump's suction characteristics are essential for the efficient and reliable operation of the entire engine lubrication system. For example, air bubbles in the oil can impair its lubricating properties, leading to insufficient lubrication and increased wear of engine components.

[0006] Due to space constraints, the oil pump is often located at the lowest point of the vehicle's drivetrain. This can result in incomplete oil intake in all driving situations, potentially leading to air bubbles in the oil. The pump's intake area is therefore not located within the so-called intake pyramid. Consequently, there is no direct correlation between pump speed and flow rate. In particular, dynamic processes, such as oil sloshing within the drivetrain, can facilitate intake, while complete intake does not occur under static conditions.

[0007] 15.10.2024 24-1085

[0008] Disclosure of the invention

[0009] It is an object of the present disclosure to specify a system for a vehicle drive, a vehicle with such a system, an operating method for an oil module of a vehicle drive, and a storage medium for executing the operating method, which make it possible to precisely determine a delivered volume flow or actual volume flow. In particular, it is an object of the present disclosure to prevent damage to the vehicle drive.

[0010] This problem is solved by the subject matter of the independent claims. Advantageous embodiments are specified in the dependent claims.

[0011] According to an independent aspect of the present disclosure, a system for a vehicle drive is specified. The system comprises an acceleration determination module configured to determine the current acceleration of the vehicle; and a volume flow determination module configured to determine acceleration-dependent intake information for at least one oil pump of the vehicle drive based on the current acceleration of the vehicle, and to determine a current volume flow of the at least one oil pump based on the acceleration-dependent intake information.

[0012] According to the invention, the current volume flow rate of an oil pump is determined by reducing the acceleration-related dynamic behavior of the oil, e.g., to a suction factor, such that the volume flow rate is proportional to the product of the pump speed and the suction factor. Thus, even with a dynamically changing suction potential, the amount of oil drawn in by the oil pump is always known. This information can be provided to various vehicle functions, which can then react accordingly. In particular, component protection can be implemented to prevent damage to critical engine and drive components.

[0013] 15.10.2024 24-1085 if the oil pump does not deliver sufficient oil. For example, warning messages may be issued during strong over-acceleration caused by the driver, or the engine may even shut down to prevent overheating of the drive system and potential damage.

[0014] The acceleration determination module and the volume flow determination module may include software components / algorithms that are set up to run on at least one processor and thereby perform the functionalities of the respective module.

[0015] The acceleration measurement module and the volumetric flow rate measurement module can be implemented in a single software and / or hardware module. Alternatively, the acceleration measurement module and the volumetric flow rate measurement module can each be implemented in separate software and / or hardware modules.

[0016] A vehicle drivetrain is a combination of components that enable a vehicle to move. The vehicle drivetrain typically includes an engine, a transmission, drive shafts, and other mechanical parts that transfer energy from the engine to the wheels to set the vehicle in motion.

[0017] The vehicle drive system also includes an oil module and at least one oil pump. The at least one oil pump can be connected to the oil module or can be part of the oil module.

[0018] An oil module in the context of a vehicle's powertrain is an integrated assembly that combines several functions related to engine lubrication and cooling. It typically includes an oil filter, an oil cooler, a thermostat for regulating oil temperature, and various sensors and valves for monitoring and controlling the oil circuit. The oil module ensures that the engine is supplied with the necessary oil.

[0019] 15.10.2024 24-1085 is supplied with the correct amount and temperature of oil to minimize friction and prevent overheating.

[0020] An oil pump is a component in the engine that ensures engine oil is pumped through the engine and its connected parts. The oil pump draws the oil from a reservoir in the oil module and distributes it under pressure to the various parts of the engine that require lubrication, such as the bearings, pistons, and camshafts.

[0021] The actual flow rate of an oil pump indicates the actual volume of oil being pumped (e.g., the currently measured value), in contrast to the target flow rate, which describes the planned or ideal value. The flow rate is typically expressed in liters per minute (l / min) or cubic meters per hour (m³ / h). 3 / h) stated, but the present disclosure is not limited to this.

[0022] Preferably, the vehicle's current acceleration is a center-of-gravity acceleration. A center-of-gravity acceleration refers to the acceleration acting on the vehicle's center of gravity. The center of gravity of a vehicle is the point where the vehicle's entire weight can be considered concentrated.

[0023] Preferably, the system comprises at least one control module configured to control at least one vehicle function based on the determined current volume flow of the at least one oil pump.

[0024] Preferably, at least one vehicle function is provided for component protection, in particular to prevent damage to critical engine and drive components if the oil pump does not deliver sufficient oil. For example, warning messages can be issued during strong accelerations caused by the driver.

[0025] 15.10.2024 24-1085, or the motor may even shut down to prevent overheating of the drive and possible damage.

[0026] Preferably, the system comprises at least one sensor module configured to provide acquisition data indicative of the current acceleration of the vehicle.

[0027] Preferably, the at least one sensor module includes an acceleration sensor. An acceleration sensor directly measures the acceleration of the vehicle along one or more axes, such as a longitudinal and / or transverse axis of the vehicle.

[0028] Additionally or alternatively, at least one sensor module includes a speed sensor. Speed ​​sensors measure the speed of the wheels or the entire vehicle. The change in speed over time can be used to calculate acceleration.

[0029] Additionally or alternatively, at least one sensor module includes a position sensor. A position sensor can measure the vehicle's tilt and, in conjunction with other data, deduce its acceleration.

[0030] Preferably, the acceleration determination module is set up to determine a current longitudinal acceleration and / or a current lateral acceleration of the vehicle.

[0031] Preferably, the volume flow determination module is set up to determine the acceleration-dependent intake information for the at least one oil pump of the vehicle drive based on the current longitudinal acceleration and / or current lateral acceleration of the vehicle.

[0032] 15.10.2024 24-1085

[0033] The volume flow determination module is configured to determine acceleration-dependent intake information for at least one oil pump of the vehicle's drive system, based on the vehicle's current acceleration. Acceleration-dependent intake information for an oil pump refers to data describing the influence of the current vehicle acceleration, such as longitudinal and / or vertical acceleration, on the oil intake by the oil pump.

[0034] Preferably, the acceleration-dependent intake information relates to or is a suction factor (also referred to as suction potential or suction capacity). The suction factor describes the efficiency or ability of the oil pump to draw oil from an oil reservoir and deliver it, for example, to the engine's lubrication system. In some embodiments, the suction factor is a parameter that describes the ratio between the actual amount of oil drawn by the oil pump and the maximum possible amount of oil that could be drawn under optimal conditions.

[0035] Preferably, the system further comprises a first data module in which intake information for the at least one oil pump of the vehicle drive is stored as a function of vehicle acceleration, wherein the volume flow determination module is configured to obtain the acceleration-dependent intake information from the first data module. For example, the intake information can be determined empirically and stored in the first data module so that the volume flow determination module can access it during actual vehicle operation.

[0036] Preferably, the acceleration-dependent intake information is stored in the first data module in the form of a first quasi-static map of the extraction factor / intake potential as a function of at least the acceleration (e.g., longitudinal acceleration and super-acceleration). A quasi-static map

[0037] Document 15.10.2024 24-1085 describes the relationship between the oil pump's suction factor and the accelerations acting on the vehicle (such as longitudinal and lateral acceleration) under quasi-static conditions. "Quasi-static" means that the conditions are considered nearly constant, even if they change slowly.

[0038] Preferably, the first data module comprises, or is, a first database or a first data storage system.

[0039] Preferably, the system comprises at least one first low-pass filter module configured to filter the current acceleration of the vehicle as determined by the acceleration determination module, and wherein the volume flow determination module is configured to determine the acceleration-dependent intake information for the at least one oil pump of the vehicle drive system based on the filtered acceleration. For example, the volume flow determination module can be configured to retrieve the acceleration-dependent intake information from the data module based on the filtered acceleration. The low-pass filtering allows the oil flow behavior to be mapped to a static target state.

[0040] Preferably, the system comprises at least one gradient limiter module configured to process the acceleration-dependent intake information determined by the volume flow control module in order to adapt the rate of change of the intake information. In particular, the rate of change can be slowed down.

[0041] Preferably, the volume flow determination module is further configured to: determine acceleration-dependent volume information for an intake area of ​​the at least one oil pump of the vehicle drive based on the current acceleration of the vehicle; and

[0042] 15.10.2024 24-1085 to further determine the acceleration-dependent intake information for at least one oil pump of the vehicle drive based on the acceleration-dependent volume information.

[0043] The acceleration-dependent volume information for the intake system indicates how much oil volume (or, analogously, mass) is located in the intake area. For example, during a left turn, oil can slosh towards the intake area, resulting in more oil being present than, for instance, during a right turn. This acceleration-dependent volume information can describe a steady state or a sloshing behavior, i.e., how much oil is in the intake area for a given acceleration.

[0044] Preferably, the system further comprises a second data module in which the acceleration-dependent volume information for the intake area of ​​the at least one oil pump is stored as a function of vehicle acceleration, wherein the volume flow determination module is configured to obtain the acceleration-dependent volume information from the second data module. For example, the acceleration-dependent volume information can be empirically determined and stored in the second data module so that the volume flow determination module can access it during actual vehicle operation.

[0045] Preferably, the acceleration-dependent volume information is stored in the second data module in the form of a second (e.g., quasi-static) characteristic map of the oil volume as a function of the acceleration (e.g., longitudinal acceleration and super-acceleration).

[0046] Preferably, the second data module comprises, or is, a second database or a second data storage system.

[0047] 15.10.2024 24-1085

[0048] In some embodiments, the first data module and the second data module can be separate data modules. In other embodiments, the first data module and the second data module can be integrated into or present in the same data module.

[0049] Preferably, the system comprises at least a second low-pass filter module configured to filter the acceleration-dependent volume information determined by the volume flow determination module. Filtering the acceleration-dependent volume information enables the damping of sudden impulses, e.g., during strong accelerations.

[0050] Preferably, the system comprises a subtraction module configured to calculate the difference between the acceleration-dependent volume information or volumes filtered by the at least one second low-pass filter module and the unfiltered acceleration-dependent volume information or volumes. An output of the subtraction module can thus indicate the volume above a steady state.

[0051] Preferably, the first quasi-static characteristic map of the suction factor / intake potential is stored in the first data module as a function of the acceleration (e.g., longitudinal and lateral acceleration) and an output (difference) of the subtraction module. This allows the first characteristic map to be three-dimensional, so that the volume flow determination module determines the acceleration-dependent intake information based on two parameters: the acceleration and the volume in the intake area at that acceleration.

[0052] According to another independent aspect of the present disclosure, a vehicle propulsion system is specified. The vehicle propulsion system comprises the vehicle propulsion system described in this document.

[0053] 15.10.2024 Preferably, the vehicle drive further comprises at least one oil pump which is configured to pump a lubricant for the vehicle drive and which is controlled by the vehicle drive system described in this document.

[0054] According to another independent aspect of the present disclosure, a vehicle, in particular a motor vehicle, is specified. The vehicle comprises the vehicle propulsion system described in this document.

[0055] Preferably, the vehicle further comprises at least one oil pump configured to pump lubricant for a vehicle drive system and controlled by the vehicle drive system described in this document.

[0056] The term "vehicle" includes cars, trucks, vans, buses, motorhomes, motorcycles, etc., used for the transport of people, goods, etc. In particular, the term includes motor vehicles for passenger transport.

[0057] According to a further independent aspect of the present disclosure, an operating method for an oil module of a vehicle drive is specified. The operating method comprises determining, by means of an acceleration determination module, a current acceleration of a vehicle; determining, by means of a volume flow determination module, acceleration-dependent intake information for at least one oil pump of the vehicle drive based on the current acceleration of the vehicle; and determining, by means of the volume flow determination module, a current volume flow of the at least one oil pump based on the acceleration-dependent intake information.

[0058] 15.10.2024 The operating procedure for an oil module of a vehicle drive can implement the aspects of the system described in this document for a vehicle drive.

[0059] According to another independent aspect of the present disclosure, a software (SW) program is specified. The SW program can be configured to run on one or more processors and thereby execute the operating procedure for an oil module of a vehicle drive described in this document.

[0060] According to another independent aspect of the present disclosure, a storage medium is specified. The storage medium may include a software program configured to run on one or more processors and thereby execute the operating procedure for an oil module of a vehicle drive described in this document.

[0061] According to another independent aspect of the present disclosure, software with program code is specified. The software is designed to carry out the operating procedure for an oil module of a vehicle drive system when the software runs on one or more software-controlled devices.

[0062] According to another independent aspect of the present disclosure, a system is specified. The system comprises one or more processors; and at least one memory connected to the one or more processors and containing instructions that can be executed by the one or more processors to perform the operating procedure described in this document for an oil module of a vehicle propulsion system.

[0063] A processor or processor module is a programmable computing unit, i.e., a machine or an electronic circuit that controls other elements according to given instructions and thereby advances an algorithm (process).

[0064] 15.10.2024 24-1085

[0065] Brief description of the drawings

[0066] Examples of the manifestation of the revelation are shown in the figures and are described in more detail below. They show:

[0067] Figure 1 schematically shows a system for a vehicle drive according to embodiments of the present disclosure,

[0068] Figure 2 schematically shows a determination of the current volume flow rate of an oil pump according to embodiments of the present disclosure,

[0069] Figure 3 schematically shows an intake potential of an oil pump as a function of vehicle acceleration according to embodiments of the present disclosure,

[0070] Figure 4 schematically shows a determination of an actual volume flow rate of an oil pump according to further embodiments of the present disclosure, and

[0071] Figure 5 shows a flowchart of an operating procedure for an oil module of a vehicle drive according to embodiments of the present disclosure.

[0072] Implementations of the revelation

[0073] Unless otherwise noted, the same reference symbols are used for identical and equivalent elements in the following.

[0074] Figure 1 schematically shows a system 100 for a vehicle drive according to embodiments of the present disclosure.

[0075] 15.10.2024 24-1085

[0076] The system 100 comprises an acceleration determination module 110, which is configured to determine a current acceleration (e.g. longitudinal acceleration and / or a lateral acceleration) of the vehicle; and a volume flow determination module 120, which is configured to determine acceleration-dependent intake information (suction factor / intake potential / intake capacity) for at least one oil pump of the vehicle drive based on the current acceleration of the vehicle, and to determine a current volume flow of the at least one oil pump based on the acceleration-dependent intake information (e.g. longitudinal acceleration and / or a lateral acceleration).

[0077] In some embodiments, the system 100 comprises at least one sensor module configured to provide acquisition data indicative of the vehicle's current acceleration. The at least one sensor module may include an acceleration sensor, a velocity sensor, and / or an orientation sensor; however, the present disclosure is not limited to these.

[0078] In some embodiments, the system 100 comprises at least one control module 130 configured to control at least one vehicle function 10 based on the determined current flow rate of the at least one oil pump. The at least one vehicle function may be designed for component protection, in particular to prevent damage to critical engine and drive components if the oil pump does not deliver sufficient oil. For example, warnings may be issued in the event of strong lateral accelerations caused by the driver, or the engine may even be shut down to prevent overheating of the drive system and potential damage.

[0079] Figure 2 schematically shows a determination of a current volume flow rate of an oil pump according to embodiments of the present disclosure.

[0080] 15.10.2024 24-1085

[0081] In some embodiments, a first data module 140A is provided in which intake information for the at least one oil pump of the vehicle drive is stored as a function of the vehicle's acceleration (e.g., longitudinal acceleration ax and lateral acceleration ay). For example, the intake information can be determined empirically and stored in the first data module 140A. The acceleration-dependent intake information can be stored in the first data module 140A in the form of a quasi-static characteristic map of the intake potential as a function of at least the acceleration (e.g., longitudinal acceleration ax and lateral acceleration ay); however, the present disclosure is not limited to this.

[0082] In some embodiments, at least one first low-pass filter module 150A, 150B is provided, which is configured to filter the current acceleration of the vehicle before the acceleration-dependent intake information is retrieved from the first data module 140A. For example, a first low-pass filter module 150A can be provided for the longitudinal acceleration ax and a second low-pass filter module 150B for the lateral acceleration ay. Furthermore, in some embodiments, filter factors can be used that may, for example, depend on the oil temperature.

[0083] In some embodiments, at least one gradient limiter module 160 is further provided to process the acceleration-dependent intake information retrieved from the first data module 140 A in order to adapt the change behavior of the intake information. In particular, the change behavior can be slowed down.

[0084] The result is an intake potential P*, which corresponds to a mapping of the oil's flow behavior to a static target state. This is further explained below with reference to Figure 3.

[0085] 15.10.2024 24-1085

[0086] Figure 3 schematically shows an intake potential of an oil pump as a function of vehicle acceleration according to embodiments of the present disclosure.

[0087] The x-axis represents time t. The y-axis shows both the intake potential P (dashed line) and the vehicle acceleration a (solid line). The dotted line shows an exemplary target state of the intake potential P*, which can be achieved with the embodiments of the present disclosure (e.g., Figure 3) in order to depict the acceleration-related dynamic behavior of the oil.

[0088] Without acceleration (a=0), the intake potential is initially constant at 100% (P=l or 100%). However, under strong positive and negative accelerations (e.g., lateral accelerations), the intake potential approaches zero (P=0 or 0%). The static target state, represented by the dotted line, allows for targeted and precise correction of the volume flow.

[0089] Figure 4 schematically shows a determination of a current volume flow rate of an oil pump according to further embodiments of the present disclosure.

[0090] In the example shown in Figure 4, the volume flow determination module determines the acceleration-dependent intake information based on two parameters: the acceleration and the volume in the intake area at that acceleration. This allows for the simulation of both the flow behavior and the sloshing behavior of the oil.

[0091] In detail, the volume flow determination module can be configured to determine acceleration-dependent volume information for an intake area of ​​the at least one oil pump of the vehicle drive based on the current acceleration of the vehicle; and to further determine the acceleration-dependent intake information for the at least one oil pump of the vehicle drive based on the acceleration-dependent volume information.

[0092] 15.10.2024 24-1085

[0093] The acceleration-dependent volume information for the intake area indicates how much oil volume (or analogously, mass) is located in the pump's intake area. For example, during a left turn, oil can slosh towards the intake area, resulting in more oil being present than, for instance, during a right turn. The acceleration-dependent volume information can describe a steady state or the sloshing behavior, i.e., how much oil is in the intake area for a given acceleration.

[0094] In some embodiments, the system further comprises a second data module 140B, in which the acceleration-dependent volume information for the intake area of ​​the at least one oil pump is stored as a function of vehicle acceleration, wherein the volume flow determination module is configured to obtain the acceleration-dependent volume information from the second data module 140B. For example, the acceleration-dependent volume information can be empirically determined and stored in the second data module 140B so that the volume flow determination module can access it during actual vehicle operation.

[0095] The acceleration-dependent volume information can be stored in the second data module 140B in the form of a second (e.g., quasi-static) map of the oil volume as a function of acceleration (e.g., longitudinal and vertical acceleration). This second map can be two-dimensional, i.e., it can include the acceleration-dependent volume information as a function of acceleration.

[0096] In some embodiments, the system includes at least one second low-pass filter module 150C, which is configured to filter the acceleration-dependent volume information determined by the volume flow determination module. The filtering

[0097] 15.10.2024 24-1085 The acceleration-dependent volume information enables damping of sudden impulses, e.g., during strong accelerations.

[0098] In some embodiments, the system includes a subtraction module 170 configured to calculate the difference between the acceleration-dependent volume information or volumes filtered by the at least one second low-pass filter module 150C and the unfiltered acceleration-dependent volume information or volumes. An output DI of the subtraction module 170 can thus indicate the volume above a steady state.

[0099] In some embodiments, the first characteristic map of the suction factor / intake potential, depending on the acceleration and the output DI (difference) of the subtraction module 170, is stored in the first data module 140A. This allows the first characteristic map to be three-dimensional, so that the volume flow determination module can determine the acceleration-dependent values.

[0100] Intake information is determined based on two parameters: acceleration and the volume in the intake area at that acceleration. This allows for the simulation of both the flow behavior and the sloshing behavior of the oil.

[0101] Figure 5 shows a flowchart of an operating procedure 500 for an oil module of a vehicle drive according to embodiments of the present disclosure. The operating procedure 500 can be implemented by appropriate software that can be executed by one or more processors (e.g., a CPU).

[0102] Operating procedure 500 comprises, in block 510, determining the current acceleration of a vehicle by means of an acceleration determination module; in block 520, determining acceleration-dependent intake information for at least one oil pump of the

[0103] 15.10.2024 24-1085

[0104] Vehicle propulsion based on the current acceleration of the vehicle; and in block 530 a determination, by the volume flow determination module, of a current volume flow of the at least one oil pump based on the acceleration-dependent intake information.

[0105] According to the invention, the current flow rate of an oil pump is determined by reducing the acceleration-related dynamic behavior of the oil, for example, to a suction factor, such that the flow rate is proportional to the product of the pump speed and the suction factor. This ensures that, even with a dynamically changing suction potential, the amount of oil drawn in by the oil pump is always known. This information can be provided to various vehicle functions, which can then react accordingly. In particular, component protection can be implemented to prevent damage to critical engine and drive components if the oil pump does not deliver sufficient oil. For example, warnings can be issued during strong over-acceleration caused by the driver, or the engine can even be shut down to prevent overheating of the drive system and potential damage.

[0106] Although the invention has been illustrated and explained in detail by means of preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived from them by a person skilled in the art without departing from the scope of protection of the invention. It is therefore clear that a multitude of possible variations exist. It is also clear that the embodiments mentioned as examples are truly only examples and are not to be understood in any way as limiting, for example, the scope of protection, the possible applications, or the configuration of the invention. Rather, the preceding description and the description of the figures enable a person skilled in the art to implement the exemplary embodiments in concrete terms, whereby, with knowledge of the disclosed inventive concept, a person skilled in the art can make numerous modifications, for example, with regard to the function or the arrangement of individual components in an exemplary embodiment.

[0107] 15.10.2024 24-1085 mentioned elements can be made without leaving the scope of protection defined by the claims and their legal equivalents, such as further explanations in the description.

[0108] October 15, 2024

Claims

24-1085 Patent claims 1. System (100) for a vehicle drive, comprising: an acceleration determination module (110) configured to determine a current acceleration (ax, ay) of the vehicle; and a volume flow determination module (120) configured to determine acceleration-dependent intake information for at least one oil pump of the vehicle drive based on the current acceleration (ax, ay) of the vehicle, and to determine a current volume flow (P*) of the at least one oil pump based on the acceleration-dependent intake information.

2. System (100) according to claim 1, further comprising at least one control module (130) configured to control at least one vehicle function (10) based on the determined current volume flow (P*) of the at least one oil pump, in particular wherein the at least one vehicle function (10) is provided for component protection.

3. System (100) according to claim 1 or 2, wherein the acceleration-dependent intake information relates to or is a suction factor.

4. System (100) according to any one of claims 1 to 3, wherein the acceleration determination module (HO) is configured to determine a current longitudinal acceleration (ax) and / or a current lateral acceleration (ay) of the vehicle, and wherein the volume flow determination module (120) is configured to determine the acceleration-dependent intake information for the at least one oil pump of the vehicle drive based on the current longitudinal acceleration (ax) and / or current lateral acceleration (ay) of the vehicle. October 15, 2024 24-1085 5. System according to (100) one of claims 1 to 4, further comprising a first data module (140A) in which intake information for the at least one oil pump of the vehicle drive is stored as a function of an acceleration (ax, ay) of the vehicle, wherein the volume flow determination module (120) is configured to obtain the acceleration-dependent intake information from the first data module (140A), in particular wherein the acceleration-dependent intake information is stored in the first data module (140A) in the form of a quasi-static and / or three-dimensional first characteristic map.

6. System (100) according to any one of claims 1 to 5, further comprising at least a first low-pass filter module (150A, 150B) configured to filter the current acceleration (ax, ay) of the vehicle determined by the acceleration determination module (110), and wherein the volume flow determination module (120) is configured to determine the acceleration-dependent intake information for the at least one oil pump of the vehicle drive based on the filtered acceleration.

7. System (100) according to claim 6, further comprising at least one gradient limiter module (160) configured to process the acceleration-dependent intake information determined by the volume flow determination module (120) in order to adapt a change behavior of the intake information, in particular to slow it down.

8. System (100) according to any one of claims 1 to 7, wherein the volume flow determination module (120) is further configured to: determine acceleration-dependent volume information for an intake area of ​​the at least one oil pump of the vehicle drive based on the current acceleration (ax, ay) of the vehicle; and October 15, 2024 24-1085 to further determine the acceleration-dependent intake information for at least one oil pump of the vehicle drive based on the acceleration-dependent volume information.

9. System according to claim 8, further comprising: at least one second low-pass filter module (150C) configured to filter the acceleration-dependent volume information determined by the volume flow determination module (120); and a subtraction module (170) configured to form a difference (DI) between the acceleration-dependent volume information filtered by the at least one second low-pass filter module (170) and the unfiltered acceleration-dependent volume information, wherein the volume flow determination module (120) is configured to determine the acceleration-dependent intake information for the at least one oil pump of the vehicle drive based on the difference (DI).

10. System according to (100) claim 8 or 9, further comprising a second data module (140B) in which acceleration-dependent volume information is stored as a function of an acceleration (ax, ay) of the vehicle, wherein the volume flow determination module (120) is configured to obtain the acceleration-dependent volume information from the second data module (140B), in particular wherein the acceleration-dependent volume information is stored in the second data module (140B) in the form of a two-dimensional second characteristic map.

11. Vehicle (10), in particular motor vehicle, comprising: at least one oil pump arranged to deliver a lubricant for a vehicle drive, and the system (100) according to any one of claims 1 to 10. October 15, 2024 24-1085 12. Operating procedure (500) for an oil module of a vehicle drive, comprising: Determining (510), by means of an acceleration determination module (110), a current acceleration (ax, ay) of a vehicle; Determine (520), by means of a volume flow determination module (120), acceleration-dependent intake information for at least one oil pump of the vehicle drive based on the current acceleration (ax, ay) of the vehicle; and determine (530), by means of the volume flow determination module (120), a current volume flow (P*) of the at least one oil pump based on the acceleration-dependent intake information.

13. Storage medium comprising a software program configured to run on one or more processors and thereby to execute the operating method (500) for an oil module of a vehicle drive according to claim 12. October 15, 2024

Images