Electric control system for oil tank and working method and application of electric control system

Abstract

The invention relates to an electric control system for an oil tank and a working method and application of the electric control system. The electric control system comprises a single-chip microcomputer control module (11), a sensor module (5), an oil pump control module (13), a PTC heating module (12) and a CAN communication module (14). Compared with the prior art, a single chip microcomputer in the single chip microcomputer control module (11) serves as a core component of the electronic control system, the electronic control system comprehensively manages and controls an oil pump and auxiliary functional components in the oil tank, and the fuel oil blending function between the main oil tank and the auxiliary oil tank and the auxiliary oil supply function of the auxiliary oil tank are achieved; automatic control over an oil supply system of the oil tank is achieved, the low-temperature environment starting capacity of an automobile is improved, the automobile power performance such as uphill and acceleration under specific working conditions is improved, and the automation function of the oil tank is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts, and particularly to an electronic control system for a fuel tank, its working method and application. Background Art

[0002] The transportation industry has developed by leaps and bounds. In particular, the rise of the express delivery industry has led to long-distance transportation becoming an important requirement for commercial vehicles.

[0003] Commercial vehicles face various challenges during actual use. For example, there are difficulties in starting in high-latitude regions or during winter use. Currently, the conventional method is to use a dual-fuel tank form to solve this problem. Regular diesel is filled in the main fuel tank to improve economy, and high-grade diesel for low-temperature resistance is filled in the smaller auxiliary fuel tank for starting. During use, the two fuel tanks need to be manually switched to select the current fuel supply tank. A three-way valve is set at the end of the engine fuel pipeline. Two pipelines are branched out behind the valve and connected to the two fuel tanks respectively. During cold start, the auxiliary fuel tank is used first. After the vehicle is preheated, the three-way valve is manually operated to switch the fuel pipeline to the main fuel tank. The fuel supply pipeline of this system is relatively complex and requires manual operation, resulting in a cumbersome and inefficient use process.

[0004] In addition, commercial vehicles have problems with slow power response under conditions such as climbing and accelerating. Currently, the conventional method is also to use a dual-fuel tank form to solve this problem. When needed, the auxiliary fuel tank pressurizes the fuel supply to the system through an auxiliary pump to increase the fuel supply rate. Summary of the Invention

[0005] The purpose of the present invention is to propose an electronic control system for a fuel tank, its working method and application to overcome the defects of the above-mentioned existing technologies. The electronic control system includes a single-chip microcomputer control module, a sensor module, an oil pump control module, a PTC heating module, and a CAN communication module. With the single-chip microcomputer in the single-chip microcomputer control module as the core component, the electronic control system comprehensively manages and controls the oil pump and auxiliary functional components in the fuel tank, realizes the fuel allocation function between the main fuel tank and the auxiliary fuel tank, as well as the auxiliary fuel supply function of the auxiliary fuel tank, and realizes the automatic control of the fuel tank supply system. The aim is to improve the starting ability of the vehicle in a low-temperature environment, improve the power performance of the vehicle under specific working conditions, such as climbing and accelerating, and improve the automatic function of the fuel tank.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The first object of the present invention is to provide an electronic control system for a fuel tank. The electronic control system is used for a fuel tank, and the fuel tank includes an oil pump. The electronic control system includes a single-chip microcomputer control module, a sensor module, an oil pump control module, a PTC heating module, and a CAN communication module. The output end of the sensor module is communicatively connected to the input end of the single-chip microcomputer control module. The oil pump is connected to the single-chip microcomputer control module. The single-chip microcomputer control module is communicatively connected to the oil pump control module, the PTC heating module, and the CAN communication module respectively.

[0008] The sensor module includes a temperature sensor and a liquid level sensor. The PTC heating module is used to control the fuel temperature. The output end of the temperature sensor is communicatively connected to the input end of the single-chip microcomputer control module. The output end of the liquid level sensor is communicatively connected to the input end of the single-chip microcomputer control module. The input end of the oil pump control module is communicatively connected to the output end of the single-chip microcomputer control module. The output end of the oil pump control module is communicatively connected to the input end of the single-chip microcomputer control module. The input end of the PTC heating module is communicatively connected to the output end of the single-chip microcomputer control module. The output end of the PTC heating module is communicatively connected to the input end of the single-chip microcomputer control module. The input end of the CAN communication module is communicatively connected to the output end of the single-chip microcomputer control module. The output end of the CAN communication module is communicatively connected to the input end of the single-chip microcomputer control module. The fuel tank further includes a main fuel tank and a secondary fuel tank. The main fuel tank is connected to the secondary fuel tank through an oil pump. The PTC heating module is connected to the secondary fuel tank. The oil pump is communicatively connected to the oil pump control module.

[0009] Further, the sensor module is used to transmit the information collected by the sensor to the single-chip microcomputer control module through an analog voltage signal. The single-chip microcomputer control module is used to collect the analog voltage signal from the sensor module, output control instructions to the oil pump control module, the PTC heating module, and the CAN communication module, collect information such as the working state and fault alarm of the oil pump from the oil pump control module, and collect signals such as the working state and fault alarm of the PTC heating from the PTC heating module. The oil pump control module is used for information interaction with the single-chip microcomputer control module. The PTC heating module is used for information interaction with the single-chip microcomputer control module. The CAN communication module is used for information interaction with the single-chip microcomputer control module.

[0010] Further, the electronic control system further includes a vehicle ECU. The CAN communication module is communicatively connected to the vehicle ECU. The vehicle ECU is used to collect data. The CAN communication module is used for data exchange with the vehicle ECU.

[0011] Further, the electronic control system further includes a cloud platform database. The cloud platform database is communicatively connected to the vehicle ECU. The CAN communication module is used to transmit the data collected by the vehicle ECU to the cloud platform database after data exchange with the vehicle ECU.

[0012] Further, the oil pump control module includes a LIN communication sub-module or a second ADC interface; the LIN communication sub-module or the second ADC interface is communicatively connected to the oil pump; the LIN communication sub-module or the second ADC interface is used to collect information of the oil pump.

[0013] Further, the PTC heating module includes a heater sub-module; the input end of the heater sub-module is communicatively connected to the output end of the single-chip microcomputer control module; the heater sub-module is used to control the fuel temperature.

[0014] Further, the temperature sensor and the liquid level sensor in the sensor module are connected to the auxiliary fuel tank, and the temperature sensor and the liquid level sensor are used to detect the temperature and the liquid level of the fuel in the auxiliary fuel tank.

[0015] Further, the heater sub-module is a PTC heater, and an NTC internal sensor is provided inside the PTC heater. The NTC internal sensor of the PTC heating module is started after receiving the signal of the single-chip microcomputer control module; the heater sub-module and the single-chip microcomputer control module are control-connected, and the NTC internal sensor feeds back signals to the single-chip microcomputer control module.

[0016] Further, the single-chip microcomputer control module includes a single-chip microcomputer, and the single-chip microcomputer includes a first ADC interface. The first ADC interface is used to receive an analog voltage signal, and the first ADC interface is communicatively connected to the sensor module.

[0017] Further, the core control module of the electronic control system is a single-chip microcomputer. This single-chip microcomputer adopts the automotive industry standard, has a high working frequency and strong processing ability. As the core control unit of the controller, it realizes the acquisition of sensor signals at the front end of the fuel tank and the intelligent control of the oil pump and the heater at the rear end of the fuel tank. It includes two general automotive communication interfaces, CAN BUS and LIN BUS, and can transmit data in real time with other devices. In addition, the single-chip microcomputer module can receive the ignition signal of the vehicle and serves as a part of logical control.

[0018] Further, the sensor module of the electronic control system is in the ADC interface mode to realize the information acquisition function of the single-chip microcomputer. This single-chip microcomputer has the characteristics of small volume, light weight, small working current, low power consumption and sensitive response, and can collect analog data of various sensors such as temperature and liquid level.

[0019] Furthermore, the control of the oil pump relies on data interaction between the single-chip microcomputer and the oil pump control module via the LIN bus or the ADC interface, achieving the purpose of controlling the forward rotation, reverse rotation, and stop of the oil pump through pre-set program logic. When receiving the data from the sensors in the sensor module and the ignition signal of the vehicle, the single-chip microcomputer judges the result according to the logic program and sends the instruction corresponding to the working state of the oil pump to the oil pump control module in the format of the LIN communication protocol or as an analog quantity. The oil pump control module drives the oil pump into the corresponding working mode according to the instruction.

[0020] Furthermore, the PTC heating module (intelligent heating control module) of the electronic control system can raise or maintain the fuel in the fuel tank within a certain specified temperature range in a low-temperature environment, enabling the fuel to have a certain fluidity so that the oil pump can pump normally. The PTC heating module is equipped with a temperature sensor in the PTC heating module and intelligent working logic. Within the set temperature range, the PTC heater is turned on or off accordingly. In addition, the PTC heating module can transmit its own working state and fault information to the single-chip microcomputer control module. Moreover, data can also be uploaded to the vehicle ECU to make the vehicle data collection more complete, facilitating rapid fault judgment.

[0021] Furthermore, the single-chip microcomputer control module, as the core component of the electronic control system, is equivalent to the brain of the entire electronic control part. The single-chip microcomputer control module collects analog voltage signals from the sensor module, processes them through program software, endows them with logic control functions, and outputs control instructions to the oil pump control module and the PTC heating module.

[0022] Furthermore, the sensor module includes functions that can detect temperature, liquid level, and other types of sensor analog types. After being processed by the module, the output voltage signal is transmitted to the single-chip microcomputer control module through the ADC interface.

[0023] Furthermore, the oil pump control module, which is an actuator module, is equipped with a LIN communication sub-module or a second ADC interface and can interact with the single-chip microcomputer control module. Instructions such as the forward rotation, reverse rotation, and working duration of the oil pump are input by the single-chip microcomputer control module; conversely, information such as the working state and fault alarm of the oil pump can be fed back to the single-chip microcomputer control module through LIN communication or analog signals.

[0024] Furthermore, after the single-chip microcomputer control module receives the low-temperature signal from the temperature sensor, the PTC heating module will turn on the PTC heating. The working state and fault alarm signal of the PTC heating will be fed back to the single-chip microcomputer control module and then transmitted to the vehicle ECU through CAN communication.

[0025] Further, the intelligent heating element of the PTC heating module, i.e., the temperature sensor in the PTC heating module, after sensing the fuel temperature, can intelligently control the heater sub-module to maintain the fuel temperature within a certain range, thereby providing a fuel heating function.

[0026] The second object of the present invention is to provide a working method for an electronic control system for a fuel tank, and the working method includes the following steps:

[0027] The sensor module detects the fuel temperature information and liquid level information collected by the temperature sensor and the liquid level sensor, and transmits them to the single-chip microcomputer control module through an analog voltage signal; after receiving the analog voltage signal, the single-chip microcomputer control module processes the signal data to obtain the forward rotation, reverse rotation and working duration of the oil pump, as well as the fuel temperature, and outputs the processed values to the oil pump control module and the PTC heating module as signal values for oil pump control and PTC heating control; the oil pump control module receives the forward rotation, reverse rotation and working duration instructions of the oil pump; the PTC heating module receives the fuel temperature signal; the CAN communication module collects the data collected by the single-chip microcomputer control module, the CAN communication module exchanges data with the vehicle ECU, and the CAN communication module uploads the data collected by the vehicle ECU to the cloud platform database through the wireless communication module; the cloud platform database collects the data of the vehicle fuel tank, calculates the fuel consumption of the fuel tank and predicts the fuel usage time, and provides the working state and service life market of the electric pump.

[0028] Further, the working method further includes the following steps:

[0029] The oil pump control module feeds back the working state and fault alarm information of the oil pump to the single-chip microcomputer control module; the PTC heating module feeds back the working state and fault alarm signal of the PTC heating to the single-chip microcomputer control module.

[0030] The third object of the present invention is to provide an application of an electronic control system for a fuel tank, and the electronic control system for a fuel tank is applied to provide fuel blending or auxiliary fuel supply.

[0031] Further, applying the electronic control system for a fuel tank to provide auxiliary fuel supply includes the following process:

[0032] During the operation of the vehicle, if the vehicle is in an uphill and rapid acceleration state, the electronic control system for the fuel tank will start the auxiliary fuel pump, that is, control the oil pump to rotate. On the basis of pressing the fuel in the main fuel tank into the vehicle fuel supply system, the fuel in the auxiliary fuel tank is pressed into the rear end of the vehicle fuel supply system, increasing the fuel supply per unit time and improving the engine power. In this way, the power performance in the uphill and rapid acceleration states can be improved.

[0033] Further, applying the electronic control system for the fuel tank to provide fuel blending includes the following process:

[0034] Except that the fuel pump operates in the uphill and hard acceleration states, when the liquid level sensor detects that the liquid level of the auxiliary fuel tank is lower than the set value, the electronic control system will start the fuel pump to deliver the fuel in the main fuel tank to the auxiliary fuel tank, ensuring that the fuel quantity in the auxiliary fuel tank is stable above a certain limit.

[0035] The fourth object of the present invention is to provide an application of an electronic control system for a fuel tank, applying the electronic control system for the fuel tank to achieve normal pumping of the fuel pump in the fuel tank under low temperature environment.

[0036] Further, applying the electronic control system for the fuel tank to achieve normal pumping of the fuel pump in the fuel tank under low temperature environment includes the following process:

[0037] Under low temperature environment, the fuel (diesel) is prone to waxing and solidifying, and excessive waxing will cause the pumping function of the fuel pump to fail. When the temperature sensor detects that the oil temperature is lower than a certain limit, the electronic control system will start the PTC heating module to heat the fuel to above a certain temperature, improving or maintaining the fluidity of the fuel.

[0038] The fifth object of the present invention is to provide an application of an electronic control system for a fuel tank, applying the electronic control system for the fuel tank to achieve intelligent data management of the big data system cloud platform.

[0039] Further, applying the electronic control system for the fuel tank to achieve intelligent data management of the big data system cloud platform includes the following process:

[0040] The CAN communication module in the electronic control system can exchange data with the vehicle ECU, upload the data collected by the electronic control system to the vehicle cloud platform database, communicate with other systems, and also connect to the wireless communication module to achieve remote data transmission. The cloud platform system equipped with the cloud platform database can collect the data of the vehicle fuel tank, calculate the fuel consumption of the fuel tank and predict the fuel usage time, provide the working state and service life of the fuel pump to the user, and prompt the user that the remaining fuel quantity is insufficient and refueling should be done in time. The electronic control system can integrate the component operation data into the vehicle system, achieve data sharing, and is more beneficial to the operation safety of the vehicle.

[0041] The sixth object of the present invention is to provide a fuel tank including an electronic control system for the fuel tank, the fuel tank including a fuel pump, a main fuel tank, and an auxiliary fuel tank; the main fuel tank is connected to the auxiliary fuel tank through the fuel pump.

[0042] Further, the main fuel tank and the auxiliary fuel tank are connected to the engine through the fuel pump.

[0043] Furthermore, the electronic control system for the fuel tank is an electronic control system for the fuel tank that integrates vehicle start - up assistance function and power assistance function. It can support the fuel blending function between two fuel tanks and additionally provides a low - temperature heating function for the fuel tank. This function determines whether to heat the fuel according to the feedback temperature of the temperature sensor in the auxiliary fuel tank, so that the fuel can still maintain a certain fluidity in a low - temperature environment. This system actively judges and controls the start - up assistance, power assistance, and refueling functions of the fuel tank based on the liquid - level sensor, vehicle operation information, and vehicle ignition signal.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] (1) The designed electronic control system for the fuel tank of the present invention has an automated fuel blending function, which can automatically blend fuel between two fuel tanks as needed to adapt to different driving conditions and requirements, thereby improving fuel use efficiency and vehicle performance.

[0046] (2) The electronic control system for the fuel tank of the present invention has an auxiliary fuel supply function. When the vehicle is going uphill or accelerating rapidly, the electronic control system of the fuel tank can automatically control the fuel transfer pump to press the fuel in the auxiliary fuel tank into the vehicle fuel supply system, ensuring the power stability and response speed of the vehicle during uphill and rapid acceleration.

[0047] (3) The electronic control system for the fuel tank of the present invention has an automatic control function. When the liquid - level sensor detects that the liquid level of the auxiliary fuel tank is lower than the set value, the single - chip microcomputer control module starts the fuel pump to deliver the fuel from the main fuel tank to the auxiliary fuel tank, ensuring that the fuel volume in the auxiliary fuel tank is stable above a certain limit.

[0048] (4) The electronic control system for the fuel tank of the present invention has an automatic heating function. When the temperature sensor detects that the oil temperature is lower than a certain limit, the electronic control system starts the heater to heat the fuel in the auxiliary fuel tank to a certain temperature or above, and can be delivered to the fuel system of the engine through the fuel pump and the fuel supply pipe connected to the fuel pump. In a low - temperature environment, heating the fuel in the auxiliary fuel tank ensures smooth fuel pumping.

[0049] (5) The electronic control system for the fuel tank of the present invention can realize the automated data management of the big - data system cloud platform. The data collected by the electronic control system is uploaded to the vehicle - wide cloud platform database, which can communicate data with other systems and can also connect to a wireless communication module to achieve remote data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a schematic flow chart of the electronic control system for the fuel tank of the present invention; Figure 2 is a schematic structural diagram of the fuel tank of the present invention; In the figure:

[0051] 1 - Main fuel tank, 2 - Auxiliary fuel tank, 3 - Fuel pump, 4 - Heater sub-module, 5 - Sensor module, 6 - First ADC interface, 7 - LIN communication sub-module or second ADC interface, 8 - CAN interface, 9 - Vehicle ECU, 10 - Suction pipe interface, 11 - Microcontroller control module, 12 - PTC heating module, 13 - Fuel pump control module, 14 - CAN communication module, 15 - Cloud platform database. Detailed implementation mode

[0052] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and gives detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0053] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0055] In the following embodiments or examples, if there is no special description of functional components or structures, it means that they are all conventional components or conventional structures used in the art to achieve corresponding functions.

[0056] In the following embodiments, the communication connection can be a wired connection or a wireless connection.

[0057] Embodiment 1

[0058] The electronic control system is used for the fuel tank. The fuel tank includes an oil pump 3, a main fuel tank 1, and a secondary fuel tank 2. The main fuel tank 1 is connected to the secondary fuel tank 2 through the oil pump 3. The electronic control system includes a single-chip microcomputer control module 11, a sensor module 5, an oil pump control module 13, a PTC heating module 12, and a CAN communication module 14. The output end of the sensor module 5 is communicatively connected to the input end of the single-chip microcomputer control module 11. The oil pump 3 is connected to the single-chip microcomputer control module 11. The single-chip microcomputer control module 11 is communicatively connected to the oil pump control module 13, the PTC heating module 12, and the CAN communication module 14 respectively. The PTC heating module 12 is connected to the secondary fuel tank 2. The oil pump 3 is communicatively connected to the oil pump control module 13.

[0059] The sensor module 5 includes a temperature sensor and a liquid level sensor. The PTC heating module 12 includes a heater sub-module 4. The input end of the heater sub-module 4 is communicatively connected to the output end of the single-chip microcomputer control module 11. The heater sub-module 4 is used to control the fuel temperature. The output end of the temperature sensor is communicatively connected to the input end of the single-chip microcomputer control module 11. The output end of the liquid level sensor is communicatively connected to the input end of the single-chip microcomputer control module 11. The input end of the oil pump control module 13 is communicatively connected to the output end of the single-chip microcomputer control module 11. The output end of the oil pump control module 13 is communicatively connected to the input end of the single-chip microcomputer control module 11. The input end of the PTC heating module 12 is communicatively connected to the output end of the single-chip microcomputer control module 11. The output end of the PTC heating module 12 is communicatively connected to the input end of the single-chip microcomputer control module 11. The input end of the CAN communication module 14 is communicatively connected to the output end of the single-chip microcomputer control module 11. The output end of the CAN communication module 14 is communicatively connected to the input end of the single-chip microcomputer control module 11.

[0060] The sensor module 5 is used to transmit the information collected by the sensor to the single-chip microcomputer control module 11 through an analog voltage signal. The single-chip microcomputer control module 11 is used to collect the analog voltage signal from the sensor module 5, output control instructions to the oil pump control module 13, the PTC heating module 12, and the CAN communication module 14, collect information such as the working state and fault alarm of the oil pump from the oil pump control module 13, and collect signals such as the working state and fault alarm of the PTC heating from the PTC heating module 12. The oil pump control module 13 is used to interact with the single-chip microcomputer control module 11. The PTC heating module 12 is used to interact with the single-chip microcomputer control module 11. The CAN communication module 14 is used to interact with the single-chip microcomputer control module 11.

[0061] The PTC heating module 12 includes a heater sub-module 4; the input end of the heater sub-module 4 is communicatively connected to the output end of the single-chip microcomputer control module, and the output end of the heater sub-module 4 is communicatively connected to the input end of the single-chip microcomputer control module; the heater sub-module 4 is used to control the fuel temperature.

[0062] The electronic control system further includes a vehicle ECU 9; the CAN communication module 14 is communicatively connected to the vehicle ECU 9; the vehicle ECU 9 is used to collect data; the electronic control system further includes a cloud platform database 15; the cloud platform database 15 is communicatively connected to the vehicle ECU 9; the CAN communication module 14 is used to transmit the data collected by the vehicle ECU 9 to the cloud platform database 15 after data exchange with the vehicle ECU 9.

[0063] The fuel pump control module 13 includes a LIN communication sub-module or a second ADC interface 7; the LIN communication sub-module or the second ADC interface 7 is communicatively connected to the fuel pump; the LIN communication sub-module or the second ADC interface 7 is used to collect information of the fuel pump.

[0064] The temperature sensor and the liquid level sensor in the sensor module 5 are connected to the auxiliary fuel tank 2, and the temperature sensor and the liquid level sensor are used to detect the temperature and liquid level of the fuel in the auxiliary fuel tank 2; the heater sub-module 4 is connected to the auxiliary fuel tank 2.

[0065] The heater sub-module 4 is a PTC heater. An NTC internal sensor is provided inside the PTC heater, and the NTC internal sensor of the PTC heating module is started after receiving the signal of the single-chip microcomputer control module; the heater sub-module is control-connected to the single-chip microcomputer control module, and the NTC internal sensor feeds back the signal to the single-chip microcomputer control module.

[0066] The single-chip microcomputer control module 11 includes a single-chip microcomputer.

[0067] The single-chip microcomputer includes a first ADC interface 6, and the first ADC interface 6 is used to receive an analog voltage signal, and the first ADC interface 6 is communicatively connected to the sensor module 5.

[0068] The single-chip microcomputer includes a suction pipe interface 10, and the suction pipe interface 10 is communicatively connected to the heater sub-module 4 of the PTC heating module 12.

[0069] The CAN communication module 14 includes a CAN interface 8, and the CAN interface 8 is communicatively connected to the vehicle ECU 9.

[0070] The core control module of the electronic control system is a single-chip microcomputer. This single-chip microcomputer adopts automotive industry standards, has a high working frequency and strong processing power. As the core control unit of the controller, it realizes the acquisition of sensor signals at the front end of the fuel tank and the intelligent control of the fuel pump and heater at the rear end of the fuel tank. It includes two general automotive communication interfaces, CAN BUS and LIN BUS, and can transmit data in real time with other devices. In addition, the single-chip microcomputer module can receive the ignition signal of the vehicle and serves as a part of logical control.

[0071] The sensor module 5 of the electronic control system is in ADC interface mode to realize the information acquisition function of the single-chip microcomputer. This single-chip microcomputer has the characteristics of small size, light weight, small working current, low power consumption and sensitive response, and can collect analog data of various sensors such as temperature and liquid level.

[0072] The control of the fuel pump is achieved by the data interaction between the single-chip microcomputer and the fuel pump control module 13 through the LIN bus or the ADC interface, and the forward rotation, reverse rotation and stop of the fuel pump are controlled through the pre-set program logic. When receiving the data of the sensors in the sensor module 5 and the ignition signal of the whole vehicle, the single-chip microcomputer judges the result according to the logic program and sends the instruction corresponding to the working state of the fuel pump to the fuel pump control module 13 in the format of LIN communication protocol or analog quantity. The fuel pump control module 13 drives the fuel pump to enter the corresponding working mode according to the instruction.

[0073] The PTC heating module 12 (intelligent heating control module) of the electronic control system can raise or maintain the fuel in the fuel tank within a certain specified temperature range in a low-temperature environment, make the fuel have a certain fluidity, and enable the fuel pump to pump normally. In addition, the PTC heating module 12 can transmit its own working state and fault information to the single-chip microcomputer control module 11. In addition, it can also upload data to the vehicle ECU9 to make the data collection of the whole vehicle more complete and facilitate quick fault judgment.

[0074] The single-chip microcomputer control module 11, as the core component of the electronic control system, is equivalent to the brain of the entire electronic control part. The single-chip microcomputer control module 11 collects analog voltage signals from the sensor module 5, endows logical control functions after being processed by the program software, and outputs control instructions to the fuel pump control module 13 and the PTC heating module 12.

[0075] The sensor module 5 includes the functions of detecting temperature, liquid level and other types of sensor analog types. After being processed by the module, the output voltage signal is transmitted to the single-chip microcomputer control module 11 through the ADC interface.

[0076] The oil pump control module 13 is an actuator module that comes with a LIN communication sub-module or a second ADC interface 7 and can interact with the microcontroller control module 11. Instructions such as the forward rotation, reverse rotation, and working duration of the oil pump are input by the microcontroller control module 11. Conversely, information such as the working state and fault alarm of the oil pump can be fed back to the microcontroller control module 11 through LIN communication or analog signals.

[0077] After the microcontroller control module 11 receives the low-temperature signal from the temperature sensor, the PTC heating module 12 will turn on the PTC heating. The working state and fault alarm signals of the PTC heating will be fed back to the microcontroller control module 11 and then transmitted to the vehicle ECU 9 through CAN communication.

[0078] This embodiment further provides a working method for an electronic control system for a fuel tank. The working method includes the following steps:

[0079] The sensor module 5 detects the fuel temperature information and liquid level information collected by the temperature sensor and liquid level sensor and transmits them to the microcontroller control module 11 through an analog voltage signal. After receiving the analog voltage signal, the microcontroller control module 11 processes the signal data to obtain the forward rotation, reverse rotation, and working duration of the oil pump 3, as well as the fuel temperature, and outputs the processed values to the oil pump control module 13 and the PTC heating module 12 as signal values for oil pump control and PTC heating control. The oil pump control module 13 receives the forward rotation, reverse rotation, and working duration instructions of the oil pump 3. The PTC heating module 12 receives the fuel temperature signal. The CAN communication module 14 collects the data collected by the microcontroller control module 11, exchanges data with the vehicle ECU 9, and uploads the data collected by the vehicle ECU 9 to the cloud platform database 15 through the wireless communication module 15. The cloud platform database 15 collects the data of the vehicle fuel tank, calculates the fuel consumption of the fuel tank and predicts the fuel usage time, and provides the working state and service life of the electric pump.

[0080] The working method further includes the following steps:

[0081] The oil pump control module 13 feeds back the working state and fault alarm information of the oil pump 3 to the microcontroller control module (11). The PTC heating module 12 feeds back the working state and fault alarm signal of the PTC heating to the microcontroller control module (11).

[0082] This embodiment further provides a fuel tank including an electronic control system for a fuel tank. The fuel tank includes an oil pump 3, a main fuel tank 1, and a secondary fuel tank 2. The main fuel tank 1 is connected to the secondary fuel tank 2 through the oil pump 3. The main fuel tank 1 and the secondary fuel tank 3 are connected to the engine through the oil pump 3.

[0083] Embodiment 2

[0084] Based on Embodiment 1, this embodiment provides an application of the electronic control system for a fuel tank, applying the electronic control system for the fuel tank to provide fuel blending or auxiliary fuel supply.

[0085] Applying the electronic control system for the fuel tank to provide auxiliary fuel supply includes the following process:

[0086] During the vehicle operation, if the vehicle is in the states of uphill driving and rapid acceleration, the electronic control system for the fuel tank will start the auxiliary fuel pumping, that is, control the fuel pump 3 to rotate. On the basis of pressing the fuel in the main fuel tank 1 into the vehicle fuel supply system, the fuel in the auxiliary fuel tank 2 is pressed into the rear end of the vehicle fuel supply system, increasing the fuel supply per unit time and improving the engine power. In this way, the power performance in the uphill and rapid acceleration states can be improved.

[0087] Applying the electronic control system for the fuel tank to provide fuel blending includes the following process:

[0088] In addition to the fuel pump 3 operating in the uphill and rapid acceleration states, when the liquid level sensor detects that the liquid level of the auxiliary fuel tank 2 is lower than the set value, the electronic control system will start the fuel pump 3 to deliver the fuel in the main fuel tank 1 to the auxiliary fuel tank 2, ensuring that the fuel quantity in the auxiliary fuel tank 2 is stable above a certain limit.

[0089] Embodiment 3

[0090] Based on Embodiment 1, this embodiment provides an application of the electronic control system for a fuel tank, applying the electronic control system for the fuel tank to realize the normal pumping of the fuel pump 3 in the fuel tank under low-temperature environment.

[0091] Applying the electronic control system for the fuel tank to realize the normal pumping of the fuel pump 3 in the fuel tank under low-temperature environment includes the following process:

[0092] Under low-temperature environment, the fuel (diesel) is prone to waxing and solidifying, and excessive waxing will cause the pumping function of the fuel pump 3 to fail. When the temperature sensor detects that the oil temperature is lower than a certain limit, the electronic control system will start the heater sub-module 4 in the PTC heating module 12 to heat the fuel to a certain temperature or above, improving or maintaining the fuel fluidity.

[0093] Embodiment 4

[0094] Based on Embodiment 1, this embodiment provides an application of the electronic control system for a fuel tank, applying the electronic control system for the fuel tank to realize the intelligent data management of the big data system cloud platform.

[0095] Applying the electronic control system for the fuel tank to realize the intelligent data management of the big data system cloud platform includes the following process:

[0096] The CAN communication module 14 in the electronic control system can exchange data with the vehicle ECU 9, upload the data collected by the electronic control system to the vehicle cloud platform database 15, communicate with other systems, and can also be connected to the wireless communication module 15 to achieve remote data transmission. The cloud platform system equipped with the cloud platform database 15 can collect the data of the vehicle fuel tank, calculate the fuel consumption of the fuel tank and predict the fuel usage time, can provide the working state and service life of the fuel pump 3 to the user, and can prompt the user that the remaining fuel is insufficient and refueling should be done in time. The electronic control system can integrate the component operation data into the vehicle system, share data, and is more beneficial to the operation safety of the vehicle.

[0097] The electronic control system for the fuel tank is an electronic control system for the fuel tank that integrates vehicle start assistance function and power assistance function, can support the fuel transfer function between two fuel tanks, and additionally provides a low-temperature heating function for the fuel tank. This function determines whether to heat the fuel according to the feedback temperature of the temperature sensor in the auxiliary fuel tank, so that the fuel can still maintain a certain fluidity in a low-temperature environment. The system actively judges and controls the start assistance, power assistance, and refueling functions of the fuel tank based on the liquid level sensor, vehicle operation information, and vehicle ignition signal.

[0098] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. An electronic control system for an oil tank, the electronic control system being used for an oil tank, the oil tank comprising an oil pump (3), characterized in that: The electric control system comprises a single chip control module (11), a sensor module (5), an oil pump control module (13), a PTC heating module (12), and a CAN communication module (14); The output end of the sensor module (5) is communicatively connected to the input end of the single-chip control module (11); The oil pump (3) is connected to a single-chip microcomputer control module (11); The sensor module (5) comprises a temperature sensor and a liquid level sensor; The PTC heating module (12) Used to control fuel temperature; The output end of the temperature sensor is communicatively connected to the input end of the single-chip control module (11); The output end of the liquid level sensor is communicatively connected to the input end of the single chip control module (11); The input end of the oil pump control module (13) is communicatively connected to the output end of the single-chip control module (11); The output end of the oil pump control module (13) is communicatively connected to the input end of the single-chip control module (11); The input end of the PTC heating module (12) is communicatively connected to the output end of the single-chip control module (11); The output end of the PTC heating module (12) is communicatively connected to the input end of the single-chip control module (11); The input end of the CAN communication module (14) is communicatively connected to the output end of the single-chip control module (11); The output end of the CAN communication module (14) is communicatively connected to the input end of the single-chip control module (11); The oil tank further comprises a main oil tank (1) and an auxiliary oil tank (2); The main oil tank (1) is connected to the auxiliary oil tank (2) via an oil pump (3); The PTC heating module (12) is connected to the auxiliary oil tank (2); The oil pump (3) is communicatively connected to the oil pump control module (13).

2. The electronic control system for a fuel tank according to claim 1, characterized in that: The sensor module (5) is used to transmit information collected by the sensor to the single-chip control module (11) via an analog voltage signal; The single-chip control module (11) is used to collect analog voltage signals from the sensor module (5), output control instructions to the oil pump control module (13), the PTC heating module (12), and the CAN communication module (14), collect signals from the oil pump control module (13), and collect signals from the PTC heating module (12); The oil pump control module (13) is used for information exchange with the single-chip computer control module (11); The PTC heating module (12) is used for information exchange with the single-chip microcomputer control module (11); The CAN communication module (14) is used for information exchange with the single-chip microcomputer control module (11).

3. The electronic control system for a fuel tank according to claim 1, characterized in that: The electronic control system also includes a vehicle ECU (9); The CAN communication module (14) is communicatively connected with the vehicle ECU (9); The vehicle ECU (9) is used to collect data; The CAN communication module (14) is used for exchanging data with the vehicle ECU (9).

4. The electronic control system for a fuel tank according to claim 3, characterized in that: The electric control system also includes a cloud platform database (15); The cloud platform database (15) is communicatively connected with the vehicle ECU (9); The CAN communication module (14) is used to transmit the data collected by the vehicle ECU (9) to the cloud platform database (15) after exchanging data with the vehicle ECU (9).

5. The electronic control system for a fuel tank according to claim 1, characterized in that: The oil pump control module (13) comprises a LIN communication submodule or a second ADC interface (7); The LIN communication submodule or the second ADC interface (7) is connected to the oil pump for communication; The LIN communication submodule or the second ADC interface (7) is used to collect information about the oil pump.

6. The electronic control system for a fuel tank according to claim 1, characterized in that: The temperature sensor and the liquid level sensor in the sensor module (5) are connected to the auxiliary fuel tank (2), and the temperature sensor and the liquid level sensor are used to detect the temperature and liquid level of the fuel in the auxiliary fuel tank (2).

7. A working method of an electronic control system for a fuel tank as claimed in any one of claims 1 to 6, characterized in that: The working method comprises the following steps: The sensor module (5) detects fuel temperature information and liquid level information collected by the temperature sensor and the liquid level sensor and transmits them to the single-chip control module (11) via analog voltage signals; After receiving the analog voltage signal, the single-chip control module (11) processes the signal data to obtain the forward rotation, reverse rotation and working time of the oil pump (3), as well as the fuel temperature, and outputs the processed values ​​to the oil pump control module (13) and the PTC heating module (12) as signal values ​​for oil pump control and PTC heating control; The oil pump control module (13) receives instructions for forward rotation, reverse rotation and working time of the oil pump (3); The PTC heating module (12) receives a fuel temperature signal; The CAN communication module (14) collects data collected by the single-chip control module (11).

8. The working method of the electronic control system for the fuel tank according to claim 7, characterized in that: The working method also includes the following steps: The oil pump control module (13) feeds back the working state and fault alarm information of the oil pump (3) to the single chip control module (11); The PTC heating module (12) feeds back the working state and fault alarm signal of the PTC heating to the single-chip computer control module (11).

9. An application of an electronic control system for a fuel tank as claimed in any one of claims 1 to 6, characterized in that: The electronic control system for the fuel tank is used to provide fuel allocation or auxiliary fuel supply.

10. An application of an electronic control system for a fuel tank as claimed in any one of claims 1 to 6, characterized in that: The electronic control system for the oil tank is used to achieve normal pumping of the oil pump (3) in the oil tank under low temperature conditions.

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