CN115853753A - Oil pump unloading system, method, storage medium and vehicle - Google Patents
Oil pump unloading system, method, storage medium and vehicle Download PDFInfo
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Abstract
The invention discloses an oil pump unloading system, an oil pump unloading method, a storage medium and a vehicle. Wherein, this system includes: oil pump fuel feeding module includes: the first oil pump is used for driving oil in the first oil tank to transmit, and the second oil pump is used for driving oil in the second oil tank to transmit; the first unloading module is used for unloading oil output by the first oil pump, and a first input end of the first unloading module is connected with the first oil pump through a first oil path; and the input end of the second unloading module is connected with the second oil pump through a second oil way, the control end of the second unloading module is connected with the second output end of the first unloading module through a fourth oil way, and the output end of the second unloading module is connected with the second oil tank through a fifth oil way, so that the second unloading module is used for unloading the oil liquid output by the second oil pump. The invention solves the technical problem that the low-pressure oil pump in the prior art can not be actively unloaded.
Description
Technical Field
The invention relates to the field of motor driving, in particular to an oil pump unloading system, an oil pump unloading method, a storage medium and a vehicle.
Background
In a conventional hydraulic system using an electric dual oil pump as a hydraulic power source, an unloading solenoid valve is usually connected in series at an output interface of a high-pressure oil pump to unload the high-pressure oil pump, but the unloading of a low-pressure oil pump cannot be completed only by one unloading solenoid valve. In addition, in order to meet the cold start requirement of the low-pressure oil pump, under the condition that the unloading of the low-pressure oil pump cannot be realized, the rated power of an oil pump motor needs to be additionally improved, so that the cost of the hydraulic system is higher.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides an oil pump unloading system, an oil pump unloading method, a storage medium and a vehicle, and at least solves the technical problem that a low-pressure oil pump cannot actively unload.
According to an aspect of an embodiment of the present invention, there is provided an oil pump unloading system including: oil pump fuel feeding module includes: the first oil pump is used for driving oil in the first oil tank to transmit, the second oil pump is used for driving oil in the second oil tank to transmit, the first oil pump and the second oil pump share one driving motor, and the rotating speeds are the same; the first unloading module is used for unloading oil output by the first oil pump; the input end of the second unloading module is connected with a second oil pump through a second oil path, the control end of the second unloading module is connected with the second output end of the first unloading module through a fourth oil path, the output end of the second unloading module is connected with a second oil tank through a fifth oil path, and the second unloading module is used for unloading oil output by the second oil pump.
Optionally, in response to the first unloading module being in the first working position, both the first output end and the second output end of the first unloading module are connected to an oil return port of the first unloading module, and the first input end is cut off; in response to the first unloading module being in the second working position, the first output end of the first unloading module is conducted with the first input end of the first load module, and the second output end of the first unloading module is conducted with the oil return port of the first load module; and in response to the first unloading module being in the third working position, the first output end of the first unloading module is conducted with an oil return opening of the first unloading module, and the second output end of the first unloading module is conducted with the first input end of the first load module.
Optionally, in response to the first unloading module being in the fourth working position, both the first output end and the second output end of the first unloading module are connected to the oil return port of the first load module, and the first input end is disconnected.
Optionally, in response to the second unloading module being in the fifth working position, the input end and the output end of the second unloading module are disconnected; and in response to the second unloading module being in the sixth working position, the input end and the output end of the second unloading module are conducted.
Optionally, in response to the control end of the second unloading module inputting oil, the second unloading module is in a sixth working position; and responding to the situation that no oil is input into the control end of the second unloading module, and enabling the second unloading module to be at a fifth working position.
Optionally, the oil pump oil supply module further comprises: the first oil pump is connected with the first oil tank through the first filter, and the first filter is used for filtering oil sucked out of the first oil tank; the second oil pump is connected with the first oil tank through a second filter, and the second filter is used for filtering oil sucked out of the second oil tank.
Optionally, the method further comprises: the input end of the oil filtering module is connected with the first oil pump through a first oil way, and the oil filtering module is used for filtering oil output by the first oil pump; the input end of the single transmission module is connected with the output end of the oil liquid filtering module, and the single transmission module is used for controlling the transmission direction of the oil liquid filtered by the third filter; the pressure detection module is connected with the output end of the single transmission module and is used for detecting the oil pressure of the oil filtered by the oil filtering module.
According to another aspect of the embodiments of the present invention, there is also provided an oil pump unloading method, including: acquiring an oil pressure value of first oil output by a first oil pump; determining the working state of the first unloading module based on the oil pressure value; unloading the first oil liquid based on the first unloading module in response to the working state being a first preset state; and unloading second oil liquid transmitted by a second oil pump based on a second unloading module in response to the fact that the working state is a second preset state, wherein the second unloading module is controlled by the first unloading module.
Optionally, the method further comprises: filtering oil in the first oil tank based on a first filter; filtering the oil in the second oil tank based on a second filter; the first oil is filtered based on the oil filtering module.
Optionally, the method further comprises: and controlling the transmission direction of the first oil liquid based on the single transmission module.
Optionally, the method further comprises: an oil pressure value of the first oil is acquired based on the pressure detection module.
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein when the program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the oil pump unloading method of the above method embodiments.
According to another aspect of the embodiments of the present invention, there is also provided a processor for running a program, wherein the program is run to execute the oil pump unloading method of the above method embodiments.
According to another aspect of the embodiment of the invention, a vehicle is also provided, which comprises the oil pump unloading system.
In an embodiment of the present invention, the oil pump unloading system may include an oil pump oil supply module, a first unloading module connected to a first oil pump in the oil pump oil supply module through a first oil path, and a second unloading module connected to a second oil pump in the oil pump oil supply module through a second oil path, wherein a control end of the second unloading module is connected to the first unloading module through a fourth oil path. The working state of the first unloading module is determined by detecting the oil pressure value of the oil output by the first oil pump, and when the working state is the first working state, the first unloading module is controlled to unload the oil output by the first oil pump; when the working state is the second working state, the second unloading module is controlled to unload the oil output by the second oil pump, it is easy to notice that the second unloading module is controlled by the first unloading module, when the first unloading module is in the second working state, the second unloading module can be controlled by the fourth oil circuit to unload the oil output by the second oil pump, the environmental temperature of the oil pump does not need to be considered, so that the problem that the second oil pump can be unloaded only by greatly improving the running power of the motor for driving the oil pump to run due to the excessively low environmental temperature is avoided, and the technical problem that the low-pressure oil pump in the prior art can not be actively unloaded is further solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic structural view of a conventional oil pump unloading system according to the present embodiment;
fig. 2 is a schematic structural view of an oil pump unloading system according to the present embodiment;
FIG. 3 is a schematic diagram showing the detailed structure of an unloading system according to the present embodiment;
FIG. 4 is a schematic diagram showing the detailed structure of another unloading system according to the present embodiment;
FIG. 5 is a flow chart illustrating a method of unloading an oil pump according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
At present, most unloading systems unload oil output by an oil pump through an unloading electromagnetic valve, and fig. 1 is a schematic structural diagram of a conventional oil pump unloading system according to this embodiment, as shown in fig. 1, where 101 denotes an electric dual oil pump which is driven by an oil pump motor E as a power source, and 102 denotes an unloading electromagnetic valve which can unload oil output by a high-pressure oil pump.
However, the target object of unloading by using a single unloading solenoid valve is limited to the high-pressure oil pump under a specific condition, for example, after the oil pressure value of the oil output by the high-pressure oil pump reaches a target value, the unloading processing of the oil can be performed, which cannot meet the unloading requirement of the low-pressure oil pump, and in a hydraulic system using the electric dual oil pump as a hydraulic power source, the dual oil pump is required to have a strong enough cold start capability to meet the operation requirement of the hydraulic system under a low temperature condition. But because the oil circuit width of low-pressure oil pump is great, the oil circuit is longer, can lead to low-pressure oil pump output interface can have great load pressure under the low temperature operating mode, makes the oil pump cold start difficult, just needs to improve the operating power of motor by a wide margin at this moment in order to realize the cold start of oil pump, nevertheless can lead to the power improvement and the volume increase of oil pump motor like this, and then leads to the cost of whole oil pump off-load process too high.
Example 1
In accordance with an embodiment of the present invention, in response to the above problems, a system embodiment of an oil pump unloading system is provided.
Fig. 2 is a schematic structural diagram of an oil pump unloading system according to the present embodiment, and as shown in fig. 2, the system may include the following modules: an oil pump oil supply module 202, a first unloading module 204, and a second unloading module 206.
Wherein, oil pump fuel feeding module 202 includes: the first oil pump is used for driving oil transmission in the first oil tank, and the second oil pump is used for driving oil transmission in the second oil tank.
The first oil pump may be a high-pressure oil pump, the first oil tank may be an oil tank for storing oil required by the high-pressure system, and the first oil tank is connected to the first oil pump.
The second oil pump may be a low-pressure oil pump, the second oil tank may be an oil tank for storing oil required by the low-pressure system, and the second oil tank is connected to the second oil pump.
In an alternative of this embodiment, in consideration of the configuration cost and the operating pressure cost of the whole oil pump unloading system, a motor duplex oil pump may be used to suck the oil in the first oil tank and the second oil tank.
When a plurality of functional modules in the vehicle run, the oil pump unloading system can utilize the oil pump oil supply module to absorb high-pressure oil or low-pressure oil from the first oil tank or the second oil tank according to functional requirements so as to realize normal use of vehicle functions.
For example, when the clutch needs to be driven, the oil pump unloading system can control the first oil pump to pump oil from the first oil tank so as to drive the clutch; when the clutch needs to be cooled, the oil pump unloading system can control the second oil pump to pump low-pressure oil from the second mailbox so as to cool the clutch.
It should be noted that the use of the clutch is merely an exemplary illustration, and the functions of the vehicle that need to be operated are not limited.
The first unloading module 204 has a first input end connected to the first oil pump through a first oil path, and a first output end connected to the first oil tank through a third oil path, for unloading the oil driven by the first oil pump.
The first unloading module may be a module for unloading the oil output by the first oil pump, and may be, for example, a preset reversing solenoid valve.
In an alternative scheme of this embodiment, in consideration of the practicability when unloading the oil pump, the first input end of the first unloading module may be communicated with the high-pressure oil pump through a first oil path, that is, the first oil pump described above is connected, and the first output end of the first unloading module are connected with the first oil tank through a third oil path, so that unloading processing of the high-pressure oil pump is realized, redundant high-pressure oil is re-output to the first oil tank, and further, the pressure of the high-pressure system does not exceed a certain limit value, and the power loss of the high-pressure oil pump is reduced.
And an input end of the second unloading module 206 is connected with the second oil pump through a second oil path, a control end of the second unloading module is connected with a second output end of the first unloading module 204 through a fourth oil path, and an output end of the second unloading module is connected with the second oil tank through a fifth oil path and is used for unloading oil output by the second oil pump.
The second unloading module may be a module for unloading oil output by the second oil pump, and may be, for example, a preset mechanical slide valve.
The control end may refer to a port for controlling the operating state of the second unloading module, and if the second unloading module is the mechanical spool, the control end may refer to a port corresponding to the other side of the spool spring.
In an alternative scheme of this embodiment, since the first oil pump and the second oil pump are unloaded under different conditions, and the first oil pump and the second oil pump cannot be unloaded at the same time, the second unloading module and the first unloading module may be controlled in a related manner, the control end of the second unloading module is connected to the second output end of the first unloading module through the fourth oil path, and the first unloading module is in different working states to control the working state of the second unloading module, thereby implementing unloading processing on the low-pressure oil.
In an alternative of this embodiment, the second unloading module may also be a preset reversing solenoid valve, so as to ensure the sensitivity and accuracy of the whole unloading process, but since the price cost of the reversing solenoid valve is much higher than that of a mechanical slide valve, it is preferable that the mechanical slide valve is used as an unloading component of the second unloading module to unload the oil pump output by the second oil pump in view of the configuration cost of the whole unloading system.
In an embodiment of the present invention, the oil pump unloading system may include an oil pump oil supply module, a first unloading module connected to a first oil pump in the oil pump oil supply module through a first oil path, and a second unloading module connected to a second oil pump in the oil pump oil supply module through a second oil path, wherein a control end of the second unloading module is connected to the first unloading module through a fourth oil path. The working state of the first unloading module is determined by detecting the oil pressure value of the oil output by the first oil pump, and when the working state is the first working state, the first unloading module is controlled to unload the oil output by the first oil pump; when the working state is the second working state, the second unloading module is controlled to unload the oil output by the second oil pump, it is easy to notice that the second unloading module is controlled by the first unloading module, when the first unloading module is in the second working state, the second unloading module can be controlled by the fourth oil circuit to unload the oil output by the second oil pump, the environmental temperature of the oil pump does not need to be considered, so that the problem that the second oil pump can be started only by greatly improving the running power of the motor for driving the oil pump to run due to the excessively low environmental temperature is avoided, and the technical problem that the low-pressure oil pump in the prior art cannot be actively unloaded is further solved.
Fig. 3 is a schematic diagram of a detailed structure of an unloading system according to the present embodiment, and as shown in fig. 3, the whole unloading system can be divided into three modules: the oil pump oil supply module S1, the first unloading module S2 and the second unloading module S3.
The oil pump oil supply module S1 includes a first oil tank S11, a second oil tank S12, a first oil pump S13, a second oil pump S14, and an oil pump motor S10.
The first unloading module S2 includes a direction-changing solenoid valve S21 therein.
A mechanical spool S31 is included in the second unloading module S3.
A first input end of the reversing solenoid valve S21 is connected to the first oil pump S14 through a first oil path 31, a first output end is connected to the first oil tank S11 through a third oil path 33, and a second output end is connected to a control end of the mechanical spool valve S31 through a fourth oil path 34.
The mechanical spool S31 has an input end connected to the second oil pump S14 through a second oil passage and an output end connected to the second oil tank S12 through a fifth oil passage 35.
Optionally, in response to the first unloading module being in the first working position, both the first output end and the second output end of the first unloading module are connected to the oil return port of the first load module, and the first input end is disconnected; in response to the first unloading module being in the second working position, the first output end of the first unloading module is conducted with the first input end of the first load module, and the second output end of the first unloading module is conducted with the oil return port of the first load module; and in response to the first unloading module being in the third working position, the first output end of the first unloading module is conducted with the oil return port of the first load module, and the second output end of the first unloading module is conducted with the first input end of the first load module.
In an alternative of this embodiment, the first unloading module may be a three-position four-way reversing solenoid valve including at least three operating positions.
The first working position can be a working position corresponding to the first unloading module in a standby state, when the oil pump has no unloading requirement, the oil pump unloading system can control the first unloading module to be in the first working position, at the moment, the first output end and the second output end of the first unloading module and the oil return port are cut off, and the first input end does not receive high-pressure oil output by the first oil pump, so that mistaken unloading of the high-pressure oil or the low-pressure oil is avoided.
The second working position may be a corresponding working position when the first unloading module is in a high-pressure unloading state, and when the oil pump unloading system needs to unload oil output by the high-pressure oil pump, the first unloading module may be controlled to be in the second working position, at this time, the first output end and the first input end of the first unloading module are conducted, the second output end and the oil return port are conducted, at this time, high-pressure oil output by the first oil pump may flow back into the first oil tank through the first oil path, the channel where the first output end and the first input end are conducted, and the third oil path, thereby implementing an operation of unloading oil output by the first unloading module to the first oil pump.
The third working position may refer to a working position corresponding to the first unloading module when the first unloading module is used for controlling the mechanical slide valve to perform low-pressure unloading, when the oil pump unloading system needs to unload oil output by the low-pressure oil pump, the first unloading module may be controlled to be in the third working position, at this time, the first output end and the oil return port of the first unloading module are conducted, the second output end and the first input end are conducted, at this time, high-pressure oil output by the first oil pump may be transmitted to the control end of the mechanical slide valve through the first oil path, the channel where the second output end and the first input end are conducted, and the fourth oil path, so as to compress a slide valve spring in the mechanical slide valve, change the working state of the mechanical slide valve, and thus low-pressure oil output by the second oil pump may flow back into the second oil tank through the second oil path, the channel where the mechanical slide valve is conducted, and the fifth oil path, thereby realizing an operation of controlling the second unloading module to unload oil output by the second unloading module by the first unloading module.
As shown in fig. 3, when the high-pressure oil pump and the low-pressure oil pump do not need to be unloaded, the three-position four-way reversing valve needs to be operated at the middle position, i.e., the first position, a preset control current needs to be maintained, and the three-position four-way reversing valve is ensured to be operated at the middle position.
Optionally, in response to the first unloading module being in the fourth working position, both the first output end and the second output end of the first unloading module are connected to the oil return port of the first load module, and the first input end is disconnected.
In an alternative of this embodiment, the reversing solenoid valve may also be a four-position, four-way reversing solenoid valve, which may include a fourth operating position in addition to the three aforementioned operating positions.
Fig. 4 is a schematic diagram of a detailed structure of another unloading system according to the embodiment, which is shown as S2 in fig. 4, and is another configuration scheme of a reversing solenoid valve, namely, the four-position four-way reversing solenoid valve. In order to further reduce the electrical loss of the control system, a transitional working position, namely the fourth working position, can be additionally arranged, the fourth working position is arranged between the second working position and the third working position, and the first working position is arranged at the other side of the second working position, namely when the control current of the reversing solenoid valve is 0, the unloading system does not work, so that the electrical loss of the control system is reduced under the condition of no unloading requirement. In addition, if the reversing electromagnetic valve has short circuit or open circuit fault, the hydraulic system only loses the unloading function, other control and lubricating functions can still be realized, and the safety performance is improved.
Optionally, in response to the second unloading module being in the fifth working position, the input end and the output end of the second unloading module are disconnected; and in response to the second unloading module being in the sixth working position, the input end and the output end of the second unloading module are conducted.
In an alternative of this embodiment, the second unloading module may refer to a mechanical slide valve comprising at least two operating positions.
The fifth working position may be a corresponding working position when the mechanical slide valve is in a standby state, and when the oil pump has no unloading requirement or only needs to perform high-pressure unloading, the slide valve spring of the mechanical slide valve may control the mechanical slide valve to be in the fifth working position, and at this time, the input end and the output end of the mechanical slide valve are disconnected, and low-pressure oil output by the second oil pump is not received, so that the low-pressure oil is prevented from being unloaded by mistake.
The sixth working position may be a working position corresponding to a low-pressure unloading state of the mechanical slide valve, and when the oil pump unloading system needs to perform low-pressure unloading, as described above, the first unloading module may be controlled to be in the third working position, so that the high-pressure oil pump may be driven to the control end of the mechanical slide valve, compress the slide valve spring, and further cause the mechanical slide valve to be in the sixth working position, at this time, the input end and the output end of the mechanical slide valve are connected, and low-pressure oil output by the second oil pump may flow back to the second oil tank through the second oil path, the channel through which the input end and the output end are connected, and the fifth oil path, thereby implementing an operation of using the first unloading module to control the second unloading module to unload the oil output by the second oil pump.
Optionally, in response to the control end of the second unloading module inputting oil, the second unloading module is in a sixth working position; and responding to the situation that oil is not input into the control end of the second unloading module, and enabling the second unloading module to be at a fifth working position.
In an alternative of this embodiment, the working position of the second unloading module is determined by the working position of the first unloading module, as shown in the foregoing, when the first unloading module is at the first working position or the second working position, no oil is input to the control end of the second unloading module, and then the second unloading module is at the fifth working position; when the first unloading module is located at the third working position, oil is input into the control end of the second unloading module, and then the second unloading module is located at the sixth working position.
The unloading of the oil output by the first oil pump and the second oil pump can be realized by only controlling the working position of the first unloading module, so that the high-pressure unloading and the low-pressure unloading are completed, the influence of external environmental factors such as environmental temperature on the whole unloading process is not required to be considered, the self-adaptive capacity and the unloading efficiency of the whole unloading system can be improved to a great extent, the cost of the whole unloading process is reduced, and the unloading system has great progress compared with the traditional unloading system.
Optionally, the oil pump oil supply module further comprises: the first oil pump is connected with the first oil tank through the first filter, and the first filter is used for filtering oil sucked from the first oil tank; the second oil pump is connected with the first oil tank through a second filter, and the second filter is used for filtering oil sucked from the second oil tank.
In an alternative of this embodiment, in order to ensure the purity of the oil pumped by the oil pump, two filters may be further provided in the oil pump module: the first filter can be connected with the first oil tank and used for filtering oil sucked from the first oil tank; the second filter can be connected with the second oil tank and used for filtering oil sucked by the second oil tank.
That is, S15 in fig. 3 may represent a first filter, and S16 may represent a second filter.
Optionally, the oil pump unloading system further comprises: the input end of the oil filtering module is connected with the first oil pump through a first oil way, and the oil filtering module is used for filtering oil output by the first oil pump; the input end of the single transmission module is connected with the output end of the oil liquid filtering module, and the single transmission module is used for controlling the transmission direction of the oil liquid filtered by the third filter; the pressure detection module is connected with the output end of the single transmission module and is used for detecting the oil pressure of the oil filtered by the oil filtering module.
As shown in fig. 3, the oil pump unloading system may further include: an oil filtering module 301, a single-phase transmission module 302 and a pressure detection module 303.
The oil filtering module also comprises a third filter, wherein the input end of the third filter is connected with the first oil pump through a first oil way and is used for carrying out secondary filtering on oil output by the first oil pump so as to ensure the cleanliness requirement on the input oil of vehicle equipment, such as a clutch pressure control electromagnetic valve.
The input end of the single transmission module can be connected with the output end of the oil liquid filtering module and is used for controlling the transmission direction of input high-pressure oil liquid and avoiding oil liquid backflow caused by unloading of the high-pressure oil pump.
The input end of the pressure detection module can be connected with the output end of the single transmission module and is used for monitoring the oil pressure value of the high-pressure oil which is transmitted in real time, and the oil pump unloading system determines the working position of the first unloading module in real time according to the oil pressure value, so that the unloading operation of different oil pumps is realized.
Example 2
In accordance with an embodiment of the present invention, there is provided an embodiment of a method for unloading an oil pump, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system, such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that presented herein. Optionally, the method may be executed by the oil pump unloading system provided in embodiment 1, and the specific implementation scheme and application scenario are the same as those in the embodiment, and are not described herein again.
Fig. 5 is a flowchart illustrating an oil pump unloading method according to an embodiment of the present invention, and as shown in fig. 5, the method includes the steps of:
step S502, an oil pressure value of the first oil liquid transmitted by the first oil pump is obtained.
In step S504, an operating state of the first unloading module is determined based on the oil pressure value.
Step S506, responding to the working state being a first preset state, and unloading the first oil liquid based on a first unloading module; and unloading the second oil liquid transmitted by the second oil pump based on the second unloading module in response to the working state being a second preset state.
Wherein the second unloading module is controlled by the first unloading module.
The specific method may be the related content of each module in the oil pump unloading system, which is not described herein again.
Optionally, the method further comprises: filtering oil in the first oil tank based on a first filter; filtering oil in the second mailbox based on a second filter; the first oil is filtered based on the oil filtering module.
Optionally, the method further comprises: and controlling the transmission direction of the first oil liquid based on the single transmission module.
Optionally, the method further comprises: an oil pressure value of the first oil is acquired based on the pressure detection module.
Example 3
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein when the program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the oil pump unloading method of the above method embodiments.
Example 4
According to another aspect of the embodiments of the present invention, there is also provided a processor for running a program, wherein the program is run to execute the oil pump unloading method of the above method embodiments.
Example 5
According to another aspect of the embodiment of the invention, a vehicle is also provided, which comprises the oil pump unloading system.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit may be a division of a logic function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. An oil pump unloading system, comprising:
oil pump fuel feeding module includes: the oil pump system comprises a first oil pump and a second oil pump, wherein the first oil pump is used for driving oil in a first oil tank to transmit, and the second oil pump is used for driving oil in a second oil tank to transmit;
a first unloading module, a first input end of which is connected with the first oil pump through a first oil path, a first output end of which is connected with the first oil tank through a third oil path, and the first unloading module is used for unloading oil output by the first oil pump;
the input end of the second unloading module is connected with the second oil pump through a second oil path, the control end of the second unloading module is connected with the second output end of the first unloading module through a fourth oil path, the output end of the second unloading module is connected with the second oil tank through a fifth oil path, and the second unloading module is used for unloading oil output by the second oil pump.
2. The system according to claim 1, wherein in response to the first unloading module being in a first working position, both the first output end and the second output end of the first unloading module are in communication with an oil return port of the first unloading module, and the first input end is blocked; in response to that the first unloading module is located at a second working position, a first output end of the first unloading module is conducted with a first input end of the first load module, and a second output end of the first unloading module is conducted with an oil return port of the first unloading module; and in response to the first unloading module being in a third working position, the first output end of the first unloading module is conducted with the oil return port of the first unloading module, and the second output end of the first unloading module is conducted with the first input end of the first load module.
3. The system of claim 2, wherein in response to the first unloading module being in a fourth operating position, both the first output and the second output of the first unloading module are in communication with an oil return port of the first load module, and the first input is blocked.
4. The system of claim 1, wherein in response to the second unloading module being in a fifth operating position, the input of the second unloading module is disconnected from the output; and in response to the second unloading module being in a sixth working position, the input end and the output end of the second unloading module are conducted.
5. The system of claim 4, wherein the second unloader module is in the sixth operating position in response to a control end of the second unloader module inputting oil; and responding to the situation that no oil liquid is input into the control end of the second unloading module, and enabling the second unloading module to be located at the fifth working position.
6. The system of claim 1, wherein the oil pump oil supply module further comprises: a first filter and a second filter, wherein,
the first oil pump is connected with the first oil tank through the first filter, and the first filter is used for filtering oil liquid transmitted from the first oil tank;
the second oil pump passes through the second filter with first oil tank is connected, the second filter is used for filtering follow the fluid of transmission play in the second oil tank.
7. The system of claim 1, further comprising:
the input end of the oil filtering module is connected with the first oil pump through the first oil way, and the oil filtering module is used for filtering oil output by the first oil pump;
the input end of the single transmission module is connected with the output end of the oil liquid filtering module, and the single transmission module is used for controlling the transmission direction of the oil liquid filtered by the third filter;
the pressure detection module is connected with the output end of the single transmission module and used for detecting the oil pressure of the oil filtered by the oil filtering module.
8. An oil pump unloading method, characterized by comprising:
acquiring an oil pressure value of first oil driven by a first oil pump;
determining the working state of the first unloading module based on the oil pressure value;
responding to the fact that the working state is a first preset state, and unloading the first oil liquid based on the first unloading module;
and responding to the second preset state of the working state, unloading second oil liquid transmitted by a second oil pump based on a second unloading module, wherein the second unloading module is controlled by the first unloading module.
9. A computer-readable storage medium characterized by comprising a stored program, wherein an apparatus in which the computer-readable storage medium is located is controlled to execute the oil pump unloading system according to any one of claims 1 to 7 when the program is executed.
10. A vehicle, characterized by comprising: the system of any one of claims 1 to 7.
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| CN202211656922.9A CN115853753B (en) | 2022-12-22 | 2022-12-22 | Oil pump unloading system, method, storage medium and vehicle |
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