Control method and device of double-source oil pump system, vehicle-mounted terminal and storage medium

Abstract

The invention discloses a control method and device of a double-source oil pump system, a vehicle-mounted terminal and a storage medium, and relates to the technical field of vehicles, the method comprises the steps that the operation state of a high-pressure oil pump in a high-pressure system is obtained, and the operation state of the high-pressure oil pump comprises a first working state and a first non-working state; the high-pressure system is used for providing steering assistance for a steering system of the vehicle; in response to the fact that the operation state of the high-pressure oil pump is the working state, voltage information of a storage battery in a low-voltage system is obtained, and the low-voltage system is a redundant system of the high-pressure system; in response to the fact that the voltage information of the storage battery meets a preset condition, a target control strategy set is generated, the target control strategy set is used for controlling the DCDC module to be converted into a target state, the target state comprises a second working state and a second non-working state, and the DCDC module is used for supplying power to the low-voltage system so that the low-voltage system can provide steering assistance for a steering system of the vehicle. The technical problem that low pressure and overpressure are prone to occurring when a double-source oil pump system works is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a control method, device, vehicle-mounted terminal and storage medium for a dual-source oil pump system. Background Art

[0002] In order to improve the safety of commercial vehicles, single high-pressure oil pumps have been gradually replaced by dual-source oil pumps. The dual-source integrated electro-hydraulic pump uses a dual-system solution to provide power steering; during the use of the whole vehicle, if any component in the high-pressure system has a problem (such as a high-pressure steering controller, a steering motor, and the connected high-pressure plug-ins, etc.), emergency steering can be performed through the low-pressure system, greatly enhancing the safety of the steering system. However, when the high-pressure oil pump is working, it will cause reverse charging of the low-pressure oil pump, and the phenomenon of low-pressure overvoltage may occur, affecting the low-voltage power supply.

[0003] In view of the above problems, no effective solution has been proposed yet. Summary of the Invention

[0004] Embodiments of the present invention provide a control method, device, vehicle-mounted terminal and storage medium for a dual-source oil pump system, so as to at least solve the technical problem of easy occurrence of low-pressure overvoltage when the dual-source oil pump system is working.

[0005] According to one aspect of the embodiments of the present invention, a control method for a dual-source oil pump system is provided, including: obtaining the operating state of a high-pressure oil pump in a high-pressure system, where the operating state of the high-pressure oil pump includes a first working state and a first non-working state, and the high-pressure system is used to provide power steering for the steering system of the vehicle; in response to the operating state of the high-pressure oil pump being the first working state, obtaining the voltage information of a storage battery in a low-pressure system, where the low-pressure system is a redundant system of the high-pressure system; in response to the voltage information of the storage battery satisfying a preset condition, generating a target control strategy set, where the target control strategy set is used to control the DCDC module to switch to a target state, and the target state includes a second working state and a second non-working state, and the DCDC module is used to convert high voltage into low voltage to supply power to the low-pressure system, so that the low-pressure system provides power steering for the steering system of the vehicle.

[0006] Optionally, in response to the voltage information of the storage battery satisfying a preset condition, generating a target control strategy set includes: in response to the voltage information of the storage battery satisfying a first preset condition in the preset condition, generating a first target control strategy in the target control strategy set, where the first target control strategy is used to control the DCDC module to switch to the second non-working state.

[0007] Optionally, in response to the voltage information of the battery satisfying a preset condition, a target control strategy set is generated, including: in response to the voltage information of the battery satisfying a second preset condition among the preset conditions, a second target control strategy in the target control strategy set is generated, and the second target control strategy is used to control the DCDC module to switch to a second working state.

[0008] Optionally, after generating the second target control strategy in the target control strategy set in response to the voltage information of the battery satisfying the second preset condition among the preset conditions, it includes: obtaining the working time of the DCDC module, where the working time is the continuous working time after the DCDC module switches to the second working state; in response to the working time of the DCDC module being greater than or equal to a preset time threshold, controlling the DCDC module to switch to a second non-working state.

[0009] Optionally, after generating the target control strategy set in response to the voltage information of the battery satisfying the preset condition, it includes: obtaining the current voltage information of the battery; in response to the current voltage information of the battery satisfying a third preset condition, controlling the DCDC module to switch to a second non-working state.

[0010] Optionally, before generating the target control strategy set in response to the voltage information of the battery satisfying the preset condition, it includes: in response to the operating state of the high-pressure oil pump being a first working state, controlling the DCDC module to switch to a second non-working state; in response to the DCDC module being in the second non-working state, obtaining the voltage information of the battery.

[0011] According to another aspect of the embodiments of the present invention, a control device for a dual-source oil pump system is further provided, including: a first acquisition module, configured to acquire the operating state of a high-pressure oil pump in a high-pressure system, where the operating state of the high-pressure oil pump includes a first working state and a first non-working state, and the high-pressure system is used to provide steering assistance for the steering system of the vehicle; a second acquisition module, configured to acquire the voltage information of a battery in a low-pressure system in response to the operating state of the high-pressure oil pump being the first working state, where the low-pressure system is a redundant system of the high-pressure system; a generation module, configured to generate a target control strategy set in response to the voltage information of the battery satisfying a preset condition, where the target control strategy set is used to control the DCDC module to switch to a target state, and the target state includes a second working state and a second non-working state, and the DCDC module is used to convert high voltage into low voltage to supply power to the low-pressure system, so that the low-pressure system provides steering assistance for the steering system of the vehicle.

[0012] According to another aspect of the embodiments of the present invention, an in-vehicle terminal is further provided, including: a memory storing an executable program; a processor configured to run the program, where when the program runs, it executes the methods in the various embodiments of the present invention.

[0013] According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium, which includes a stored executable program. When the executable program runs, it controls the device where the computer-readable storage medium is located to execute the methods in various embodiments of the present invention.

[0014] According to another aspect of the embodiments of the present invention, there is also provided a computer program product, including a computer program, which implements the methods in various embodiments of the present invention when executed by a processor.

[0015] In the embodiments of the present invention, by controlling the state of the DCDC module and coordinating the operation of the high-pressure oil pump and the low-pressure oil pump, on the basis of preventing overvoltage of the battery in the low-pressure system, the energy generated by the reverse power generation of the high-pressure oil pump is utilized as much as possible, thereby achieving the technical effect of improving the system energy efficiency, and further solving the technical problem of easy occurrence of low-pressure overvoltage when the dual-source oil pump system works. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 is a flowchart of a control method for an optional dual-source oil pump system according to one embodiment of the present invention;

[0018] Figure 2 is a flowchart of a control method for an optional dual-source oil pump system according to one embodiment of the present invention;

[0019] Figure 3 is a structural block diagram of a control device for an optional dual-source oil pump system according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] It should be noted that a dual-source integrated electro-hydraulic pump adds a low-pressure part on the basis of the original single-source product. The motor uses a dual-winding design, with the motor using the same shaft and rotor, and the stator using a separated-by-slot layout. When three-phase high voltage is applied to the high-voltage winding, a changing rotating magnetic field is generated. The rotating magnetic field cuts the low-voltage winding, generating three-phase induced voltage. The low-voltage winding will be rectified through the body diodes of the three-phase bridge arm and converted into low-voltage induced output. The voltage value of this voltage output is jointly generated by the high-voltage input voltage of the oil pump and the rotational speed. When no load, a voltage of more than 30V can be generated, and even up to 40V, which will cause the voltage of the low-voltage battery to rise, trigger a low-voltage overvoltage alarm, and may damage other electrical components.

[0023] In the prior art, the method commonly used by dual-source oil pump manufacturers is to add switching devices. When the high-pressure oil pump is working, the switch is disconnected to cut off the connection with the battery, and when the low-pressure oil pump is working, the switch is closed. Although this method solves the occurrence of overvoltage phenomenon / situation, the energy generated by the reverse power generation of the high-pressure oil pump is wasted in the form of heat generated by the resistance wire or coil.

[0024] According to an embodiment of the present invention, an embodiment of a control method for a dual-source oil pump system is provided. It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described here can be executed in a different order than here.

[0025] The method embodiments can be executed in an electronic device or a similar computing device including a memory and a processor. Taking running on a vehicle-mounted terminal as an example, the vehicle-mounted terminal may include one or more processors (the processors may include, but are not limited to, a processing device such as a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Digital Signal Processing (DSP) chip, a MicroController Unit (MCU), a Field Programmable Gate Array (FPGA), a Neural-network Processor Unit (NPU), a Tensor Processing Unit (TPU), an Artificial Intelligence (AI) type processor, etc.) and a memory for storing data. Optionally, the above vehicle-mounted terminal may further include a transmission device, an input / output device, and a display device for communication functions. Those of ordinary skill in the art can understand that the above structural description is only illustrative and does not limit the structure of the above vehicle-mounted terminal. For example, the vehicle-mounted terminal may further include more or fewer components than the above structural description, or have a different configuration from the above structural description.

[0026] The memory can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the control method of the dual-source oil pump system in the embodiments of the present invention. The processor executes various functional applications and data processing by running the computer program stored in the memory, that is, implements the above control method of the dual-source oil pump system. The memory may include a high-speed random access memory and may also include a non-volatile memory, such as one or more magnetic storage devices, a flash memory, or other non-volatile solid-state memories. In some instances, the memory may further include a memory remotely disposed relative to the processor, and these remote memories may be connected to the mobile terminal through a network. Examples of the above network include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0027] The transmission device is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of a mobile terminal. In one example, the transmission device includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device can be a Radio Frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0028] The display device can be, for example, a touch-screen liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display enables a user to interact with the user interface of the mobile terminal. In some embodiments, the above-mentioned mobile terminal has a graphical user interface (GUI), and the user can perform human-computer interaction with the GUI through finger contacts and / or gestures on the touch-sensitive surface. The human-computer interaction function here optionally includes the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music, and / or web browsing, etc. The executable instructions for performing the above human-computer interaction functions are configured / stored in a computer program product or readable storage medium executable by one or more processors.

[0029] Figure 1 is a flowchart of a method according to an embodiment of the present invention, as Figure 1 shown, the method includes the following steps:

[0030] Step S102, obtain the operating state of the high-pressure oil pump in the high-pressure system. The operating state of the high-pressure oil pump includes a first working state and a first non-working state. The high-pressure system is used to provide steering assistance for the steering system of the vehicle.

[0031] In step S102, it is necessary to periodically monitor the operating state of the high-pressure system to determine whether the high-pressure oil pump is in a working state. The operating state of the high-pressure oil pump is divided into a working state and a non-working state. The working state means that the high-pressure oil pump provides the required high-pressure steering assistance for the steering system, while the non-working state indicates that the high-pressure oil pump stops or fails.

[0032] Step S104, in response to the operating state of the high-pressure oil pump being the first working state, obtain the voltage information of the battery in the low-pressure system, where the low-pressure system is a redundant system of the high-pressure system.

[0033] In step S104, when the high-voltage system fails, the low-voltage system, as a redundancy of the high-voltage system, can briefly provide power steering for the steering system. The low-voltage system includes a low-voltage oil pump. When the high-voltage oil pump works, it will cause the low-voltage oil pump to generate electricity, thereby realizing the charging of the battery by the low-voltage oil pump. When it is detected that the high-voltage oil pump is in the first working state, the voltage information of the battery in the low-voltage system is further obtained and adjusted according to the voltage information to prevent the battery from overvoltage.

[0034] Step S106, in response to the low-voltage voltage information satisfying a preset condition, generate a target control strategy set. The target control strategy set is used to control the DCDC module to switch to a target state. The target state includes a second working state and a second non-working state. The DCDC module is used to convert high voltage to low voltage to supply power to the low-voltage system, so that the low-voltage system provides power steering for the vehicle's steering system.

[0035] In step S106, according to the voltage state of the battery, if a preset condition is satisfied (for example: the battery voltage reaches above 24V and the fluctuation is less than 0.5V), then generate a target control strategy set. The strategy set instructs the DCDC module to switch to the second non-working state to avoid overvoltage of the battery caused by reverse charging of the low-voltage oil pump. On the contrary, if the battery voltage drops below a preset threshold (for example: below 23.5V), the VCU will control the DCDC module to switch to the second working state to convert the high voltage of the battery to low voltage and provide necessary power support for the low-voltage system.

[0036] Based on steps S102 to S106, not only the working coordination of the high-voltage oil pump and the low-voltage oil pump is considered, but also the state control of the DCDC module is added. On the basis of preventing overvoltage of the battery in the low-voltage system, the energy generated by the reverse power generation of the low-voltage oil pump caused by the working of the high-voltage oil pump is utilized as much as possible, improving the system energy efficiency and ensuring the stability and safety of the system operation.

[0037] Optionally, in response to the voltage information of the battery satisfying a preset condition, generate a target control strategy set, including:

[0038] Step S211, in response to the voltage information of the battery satisfying the first preset condition in the preset conditions, generate the first target control strategy in the target control strategy set. The first target control strategy is used to control the DCDC module to switch to the second non-working state.

[0039] In step S211, it is monitored that the voltage of the low-voltage battery reaches or exceeds the first preset condition (for example: the voltage is higher than 24V and the fluctuation is less than 0.5V), indicating that the reverse power generation energy of the low-voltage oil pump is sufficient to supply power to the low-voltage system, and may even cause overvoltage of the battery. At this time, the first target control strategy is generated, that is, to control the DCDC module to switch to the second non-working state, and the DCDC module stops supplying power to the low-voltage system and the battery of the low-voltage system. This strategy can ensure that during the operation of the high-voltage oil pump, the superposition of the reverse power generation energy of the low-voltage oil pump and the power supply of the DCDC module caused by the operation of the high-voltage oil pump is avoided, effectively preventing the overvoltage phenomenon of the low-voltage battery and protecting the low-voltage electrical components from damage.

[0040] Optionally, in response to the voltage information of the battery satisfying the preset condition, a set of target control strategies is generated, including:

[0041] Step S212, in response to the voltage information of the battery satisfying the second preset condition in the preset condition, generate the second target control strategy in the set of target control strategies, and the second target control strategy is used to control the DCDC module to switch to the second working state.

[0042] In step S212, the voltage of the low-voltage battery is monitored regularly. Once it is detected that the voltage of the battery drops below the second preset condition (for example: the voltage is lower than 23.5V), it indicates that the reverse power generation energy of the low-voltage oil pump is not sufficient to maintain the normal operation of the low-voltage system. At this time, the second target control strategy is generated to control the DCDC module to switch to the second working state, start extracting energy from the high-voltage system and converting it into low-voltage electricity, and provide additional power support for the low-voltage system (including the power steering system) to ensure the stability and reliability of the system. This strategy can prevent the power steering system from failing due to insufficient power supply through the timely intervention of the DCDC module when the high-voltage oil pump is working and the power generation of the low-voltage oil pump is insufficient, improving driving safety.

[0043] Based on steps S211 and S212, by real-time monitoring the voltage state of the low-voltage battery and generating corresponding control strategies, the target state of the DCDC module (including the second working state and the second non-working state) is dynamically adjusted, realizing the energy collaborative management between the high-voltage oil pump and the low-voltage oil pump, avoiding energy waste, and ensuring the working stability of the power steering system and driving safety. At the same time, by defining different voltage thresholds as preset conditions, it is also possible to adapt to different driving environments and vehicle states, providing a more flexible and intelligent energy management solution.

[0044] As an optional implementation manner, after generating the second target control strategy in the set of target control strategies in response to the voltage information of the battery satisfying the second preset condition in the preset condition, it includes:

[0045] Step S221: Obtain the working time of the DCDC module, where the working time is the time that the DCDC module continuously works after switching to the second working state.

[0046] In step S221, execute the second target control strategy to switch the DCDC module to the second working state to supply power to the low-voltage system (including the battery), and at the same time start recording the working time of the DCDC module. The working time is calculated from the moment the DCDC module enters the second working state until the current time. This is to determine when the DCDC module should stop working to avoid excessive energy consumption and overvoltage risk of the low-voltage system.

[0047] Step S222: In response to the working time of the DCDC module being greater than or equal to the preset time threshold, control the DCDC module to switch to the second non-working state.

[0048] In step S222, when it is detected that the working time reaches or exceeds the preset time threshold (for example: 10 minutes), control the DCDC module to switch to the second non-working state and stop supplying power from the high-voltage system to the low-voltage system. This avoids overcharging of the battery or other system overload situations that may be caused by long-term high-power conversion. At the same time, the utilization of the reverse power generation energy of the low-pressure oil pump is also considered to achieve the dual goals of reasonable energy distribution and stable operation of the system.

[0049] Based on steps S221 to S222, by setting the preset time threshold, the target states (including the second working state and the second non-working state) of the DCDC module are not only controlled by voltage conditions but also restricted by time factors, ensuring that under different driving conditions, the low-voltage system can not only obtain necessary power support in a timely manner but also avoid overcharging and energy waste. The accuracy of this control strategy improves the stability and safety of the vehicle steering assist system, and also reflects the optimization of energy utilization efficiency.

[0050] Optionally, after generating the target control strategy set in response to the voltage information of the battery satisfying the preset conditions, it includes:

[0051] Step S231: Obtain the current voltage information of the battery.

[0052] In step S231, continuously monitor the current voltage information of the low-voltage battery during the operation of the DCDC module, and this real-time monitoring is completed by a voltage sensor installed on the battery.

[0053] Step S232: In response to the current voltage information of the battery satisfying the third preset condition, control the DCDC module to switch to the second non-working state.

[0054] In step S232, after the DCDC module has been working for a period of time, continuously monitor the voltage information of the storage battery. Once the current voltage of the storage battery exceeds the third preset condition (for example: the voltage reaches or exceeds 28.5V), this indicates that the voltage of the storage battery has approached or reached the overvoltage warning line. At this time, generate and execute the third target control strategy, control the DCDC module to switch to the second non-operating state, and stop the DCDC module from supplying power to the low-voltage system and the storage battery of the low-voltage system, so as to avoid the overvoltage risk of the storage battery. It ensures the voltage stability of the low-voltage system when the high-pressure oil pump generates electricity in reverse, protects the low-voltage electrical components from damage, and also avoids waste of energy.

[0055] Based on steps S231 to S232, through the intelligent control of the DCDC module, not only can the overvoltage problem of the low-voltage system be avoided, but also the energy management strategy can be dynamically adjusted according to the voltage information of the storage battery, realizing the coordinated operation between the high-pressure oil pump and the low-pressure oil pump, as well as the maximization of energy utilization efficiency, providing a more intelligent and efficient solution for the steering assist system of new energy commercial vehicles.

[0056] Optionally, before generating the target control strategy set in response to the voltage information of the storage battery satisfying the preset condition, it includes:

[0057] Step S201, in response to the operating state of the high-pressure oil pump being the first operating state, control the DCDC module to switch to the second non-operating state.

[0058] In step S201, after receiving the signal that the high-pressure oil pump starts to work, immediately control the DCDC module to stop working, avoiding the superposition of the energy generated by the reverse power generation of the low-pressure oil pump. Subsequently, continuously monitor the voltage information of the storage battery. Once it is detected that the voltage of the storage battery has an upward trend and approaches the preset overvoltage warning line, further control strategies will be taken, such as controlling the rotation speed of the oil pump or adjusting other system parameters to reduce the power generation amount, ensuring that the voltage of the storage battery remains within the safe range.

[0059] Step S202, in response to the DCDC module being in the second non-operating state, obtain the voltage information of the storage battery.

[0060] In step S202, after controlling the DCDC module to switch to the non-operating state, obtain and analyze the voltage information of the storage battery in real time, and continuously monitor the voltage. To help determine when to re-enable the DCDC module and whether measures need to be taken to further adjust the voltage level of the storage battery.

[0061] Based on steps S201 to S202, through this dynamic response and overvoltage prevention control logic, the present invention not only improves the energy utilization efficiency and system safety, but also can adapt to different driving conditions and vehicle states, providing a more intelligent and flexible energy management solution.

[0062] In another embodiment of the present application, in response to the operating state of the high-pressure oil pump being the first non-operating state, the DCDC module is controlled to switch to the second operating state so as to convert the high voltage of the storage battery into low voltage for supply to the low-voltage system, so that the low-voltage system intervenes in the power steering operation to avoid the vehicle being in a state of steering failure. In addition, in response to the operating state of the high-pressure oil pump being the first non-operating state, an alarm message is generated, and the alarm message is used to prompt the driver and passengers that the high-pressure oil pump of the current vehicle has a fault and should be repaired as soon as possible.

[0063] Figure 2 is a flowchart of a control method for another dual-source oil pump system according to an embodiment of the present invention, as Figure 2 shown, the method includes the following steps:

[0064] Step S201, in response to the operating state of the high-pressure oil pump being the first operating state, control the DCDC module to switch to the second non-operating state.

[0065] Step S202, in response to the DCDC module being in the second non-operating state, obtain the voltage information of the storage battery.

[0066] Step S211, in response to the voltage information satisfying the first preset condition in the preset conditions, generate the first target control strategy in the target control strategy set, and the first target control strategy is used to control the DCDC module to switch to the second non-operating state.

[0067] Step S212, in response to the voltage information satisfying the second preset condition in the preset conditions, generate the second target control strategy in the target control strategy set, and the second target control strategy is used to control the DCDC module to switch to the second operating state.

[0068] Step S221, obtain the working time of the DCDC module, and the working time is the continuous working time after the DCDC module switches to the second operating state.

[0069] Step S222, in response to the working time of the DCDC module being greater than or equal to the preset time threshold, control the DCDC module to switch to the second non-operating state.

[0070] Step S231, obtain the current voltage information of the storage battery.

[0071] Step S232, in response to the current voltage information satisfying the third preset condition, control the DCDC module to switch to the second non-operating state.

[0072] Based on the above steps S201 to S232, in the embodiments of the present invention, the target state of the DCDC module can be dynamically adjusted according to the working state of the high-pressure oil pump, the voltage information of the battery, and the working time of the DCDC module, ensuring that the steering assist system can operate stably and efficiently utilize energy under any working conditions, avoiding potential overvoltage risks, achieving the technical effect of extending the service life of the low-voltage battery, and thus solving the technical problem of easy occurrence of low-voltage overvoltage when the dual-source oil pump system works.

[0073] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present invention.

[0074] In the embodiments of the present invention, a control device for a dual-source oil pump system is also provided. The device is used to implement the above embodiments and preferred implementation manners, and those that have been described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0075] Figure 3 is a structural block diagram of a control device for a dual-source oil pump system according to an embodiment of the present invention. As Figure 3 shown, the device includes:

[0076] A first acquisition module 301, configured to acquire the operating state of a high-pressure oil pump in a high-pressure system. The operating state of the high-pressure oil pump includes a first working state and a first non-working state. The high-pressure system is used to provide steering assistance for the steering system of a vehicle.

[0077] A second acquisition module 302, configured to acquire the voltage information of a battery in a low-voltage system in response to the operating state of the high-pressure oil pump being the first working state, where the low-voltage system is a redundant system of the high-pressure system;

[0078] A generating module 303, configured to generate a target control strategy set in response to the voltage information of the storage battery satisfying a preset condition, where the target control strategy set is used to control the DCDC module to switch to a target state, and the target state includes a second working state and a second non-working state. The DCDC module is used to convert high voltage into low voltage to supply power to a low-voltage system, so that the low-voltage system provides power steering for the steering system of the vehicle.

[0079] Optionally, the generating module 303 is further configured to generate a first target control strategy in the target control strategy set in response to the voltage information of the storage battery satisfying a first preset condition in the preset conditions, where the first target control strategy is used to control the DCDC module to switch to the second non-working state.

[0080] Optionally, the generating module 303 is further configured to generate a second target control strategy in the target control strategy set in response to the voltage information of the storage battery satisfying a second preset condition in the preset conditions, where the second target control strategy is used to control the DCDC module to switch to the second working state.

[0081] Optionally, the second acquisition module 302 is further configured to acquire the working time of the DCDC module, where the working time is the continuous working time after the DCDC module switches to the second working state; the control device of the dual-source oil pump system further includes a control module 304, configured to control the DCDC module to switch to the second non-working state in response to the working time of the DCDC module being greater than or equal to a preset time threshold.

[0082] Optionally, the second acquisition module 302 is further configured to acquire the current voltage information of the storage battery; and control the DCDC module to switch to the second non-working state in response to the current voltage information of the storage battery satisfying a third preset condition. Optionally, the second acquisition module 302 is further configured to control the DCDC module to switch to the second non-working state in response to the operating state of the high-pressure oil pump being the first working state; the second acquisition module 302 is further configured to acquire the voltage information of the storage battery in response to the DCDC module being in the second non-working state.

[0083] It should be noted that the above-mentioned modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above-mentioned modules are all located in the same processor; or, the above-mentioned modules are respectively located in different processors in any combination form.

[0084] According to an embodiment of the present invention, there is also provided an in-vehicle terminal, including: a memory storing an executable program; a processor configured to run the program, where, when the program runs, it executes the control method of the dual-source oil pump system described above.

[0085] Optionally, in this embodiment, the above-mentioned processor may be configured to execute the following steps by a computer program:

[0086] Step S102, obtain the operating state of the high-pressure oil pump in the high-pressure system. The operating state of the high-pressure oil pump includes a first working state and a first non-working state. The high-pressure system is used to provide power steering for the steering system of the vehicle.

[0087] Step S104, in response to the operating state of the high-pressure oil pump being the first working state, obtain the voltage information of the battery in the low-pressure system, where the low-pressure system is a redundant system of the high-pressure system.

[0088] Step S106, in response to the voltage information of the battery meeting the preset conditions, generate a target control strategy set. The target control strategy set is used to control the DCDC module to switch to a target state. The target state includes a second working state and a second non-working state. The DCDC module is used to convert high voltage to low voltage to supply power to the low-pressure system, so that the low-pressure system provides power steering for the steering system of the vehicle.

[0089] According to one embodiment of the present invention, there is also provided a computer-readable storage medium. The computer-readable storage medium includes a stored executable program. When the executable program runs, it controls the device where the storage medium is located to execute the control method of the dual-source oil pump system described above.

[0090] Optionally, in this embodiment, the above storage medium may be set to store a computer program for executing the following steps:

[0091] Step S102, obtain the operating state of the high-pressure oil pump in the high-pressure system. The operating state of the high-pressure oil pump includes a first working state and a first non-working state. The high-pressure system is used to provide power steering for the steering system of the vehicle.

[0092] Step S104, in response to the operating state of the high-pressure oil pump being the first working state, obtain the voltage information of the battery in the low-pressure system, where the low-pressure system is a redundant system of the high-pressure system.

[0093] Step S106, in response to the voltage information of the battery meeting the preset conditions, generate a target control strategy set. The target control strategy set is used to control the DCDC module to switch to a target state. The target state includes a second working state and a second non-working state. The DCDC module is used to convert high voltage to low voltage to supply power to the low-pressure system, so that the low-pressure system provides power steering for the steering system of the vehicle.

[0094] Optionally, in this embodiment, the above storage medium may include but is not limited to: various media that can store computer programs such as USB flash drives, read-only memories (ROM for short), random access memories (RAM for short), mobile hard disks, magnetic disks, or optical discs.

[0095] According to one embodiment of the present invention, there is also provided a computer program product, including a computer program which, when executed by a processor, implements the control method of the dual-source oil pump system described above.

[0096] Optionally, in this embodiment, the above computer program product may be set to a computer program that executes the following steps:

[0097] Step S102: Obtain the operating state of the high-pressure oil pump in the high-pressure system. The operating state of the high-pressure oil pump includes a first operating state and a first non-operating state. The high-pressure system is used to provide steering assistance for the steering system of the vehicle.

[0098] Step S104: In response to the operating state of the high-pressure oil pump being the first operating state, obtain the voltage information of the battery in the low-pressure system, where the low-pressure system is a redundant system of the high-pressure system.

[0099] Step S106: In response to the voltage information of the battery satisfying a preset condition, generate a target control strategy set. The target control strategy set is used to control the DCDC module to switch to a target state. The target state includes a second operating state and a second non-operating state. The DCDC module is used to convert high voltage to low voltage to supply power to the low-pressure system, so that the low-pressure system provides steering assistance for the steering system of the vehicle.

[0100] In the above embodiments of the present invention, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0101] In several embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0102] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0103] In addition, in each embodiment of the present invention, each functional unit may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0104] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present invention. The foregoing storage medium includes: various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disc.

[0105] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A control method for a dual-source oil pump system, characterized in that, Including: Obtain the operating state of the high-pressure oil pump in the high-pressure system, where the operating state of the high-pressure oil pump includes a first operating state and a first non-operating state, and the high-pressure system is used to provide steering assistance for the steering system of the vehicle; In response to the operating state of the high-pressure oil pump being the first operating state, obtain the voltage information of the battery in the low-pressure system, where the low-pressure system is a redundant system of the high-pressure system; In response to the voltage information of the battery satisfying a preset condition, generate a target control strategy set, where the target control strategy set is used to control the DCDC module to switch to a target state, and the target state includes a second operating state and a second non-operating state, and the DCDC module is used to convert high voltage to low voltage to supply power to the low-pressure system, so that the low-pressure system provides steering assistance for the steering system of the vehicle.

2. The method according to claim 1, characterized in that, In response to the voltage information of the battery satisfying the preset condition, generating the target control strategy set includes: In response to the voltage information of the battery satisfying the first preset condition in the preset condition, generate the first target control strategy in the target control strategy set, and the first target control strategy is used to control the DCDC module to switch to the second non-operating state.

3. The method according to claim 1, wherein In response to the voltage information of the battery satisfying the preset condition, generating the target control strategy set includes: In response to the voltage information of the battery satisfying the second preset condition in the preset condition, generate the second target control strategy in the target control strategy set, and the second target control strategy is used to control the DCDC module to switch to the second operating state.

4. The method according to claim 3, characterized in that After generating the second target control strategy in the target control strategy set in response to the voltage information of the battery satisfying the second preset condition in the preset condition, it includes: Obtain the working time of the DCDC module, where the working time is the continuous working time after the DCDC module switches to the second operating state; In response to the working time of the DCDC module being greater than or equal to a preset time threshold, control the DCDC module to switch to the second non-operating state.

5. The method according to any one of claims 1 to 4, characterized in that, After generating the target control strategy set in response to the voltage information of the battery satisfying the preset condition, it includes: Obtain the current voltage information of the battery; In response to the current voltage information of the battery satisfying the third preset condition, control the DCDC module to switch to the second non-operating state.

6. The method according to claim 1, wherein Before generating the target control strategy set in response to the voltage information of the battery satisfying the preset condition, it includes: In response to the operating state of the high-pressure oil pump being the first operating state, control the DCDC module to switch to the second non-operating state; In response to the DCDC module being in the second non-operating state, obtain the voltage information of the battery.

7. A control device for a dual-source oil pump system, characterized in that, Including: A first acquisition module, configured to acquire the operating state of a high-pressure oil pump in a high-pressure system, where the operating state of the high-pressure oil pump includes a first working state and a first non-working state, and the high-pressure system is used to provide power steering for a steering system of a vehicle; A second acquisition module, configured to, in response to the operating state of the high-pressure oil pump being the first working state, acquire voltage information of a battery in a low-pressure system, where the low-pressure system is a redundant system of the high-pressure system; A generation module, configured to, in response to the voltage information of the battery satisfying a preset condition, generate a target control strategy set, where the target control strategy set is used to control a DCDC module to switch to a target state, and the target state includes a second working state and a second non-working state, and the DCDC module is used to convert high voltage into low voltage to supply power to the low-pressure system, so that the low-pressure system provides power steering for the steering system of the vehicle.

8. A vehicle-mounted terminal, characterized in that, Comprising: A memory storing an executable program; A processor, configured to run the program, where, when the program runs, it executes the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, where, when the executable program runs, it controls the device where the storage medium is located to execute the method according to any one of claims 1 to 6.

10. A computer program product, characterized in that, Comprising a computer program, where the computer program, when executed by a processor, implements the method according to any one of claims 1 to 6.

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