Catalyst heating control device, method, electronic equipment and storage medium

Abstract

This application discloses a catalytic converter heating control device, method, electronic device, and storage medium. The method includes: before engine start-up, controlling a supercapacitor assembly to discharge, providing power to a thermoelectric heating unit, causing the thermoelectric heating unit to begin releasing heat; controlling a blower to start operating, introducing air into the exhaust pipe between the engine and the catalytic converter, creating an airflow in the exhaust pipe to heat the catalytic converter; when the temperature of the catalytic converter is detected to reach a preset temperature threshold, controlling the thermoelectric heating unit to switch to thermoelectric power generation mode to charge the supercapacitor assembly. Heating the catalytic converter using the supercapacitor assembly, thermoelectric heating unit, and blower before engine start-up allows the catalytic converter to quickly reach the preset temperature threshold, reducing fuel consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of catalytic converter heating, in particular to a catalytic converter heating control device and method, an electronic device and a storage medium. BACKGROUND

[0002] At present, the catalytic converter is the main technical means for treating automobile exhaust, but the conversion efficiency of the catalyst is closely related to the temperature, and the catalyst can only start to work when it reaches a certain temperature. Therefore, in cold regions or when the engine is cold started, the THC (hydrocarbon) emission will be very high because the catalyst has not yet ignited. SUMMARY

[0003] The main purpose of the embodiments of the present application is to provide a catalytic converter heating control device and method, an electronic device and a storage medium. The purpose is to heat the catalytic converter by using a super capacitor assembly, a thermoelectric material heating unit and a blower before the engine starts, so that the catalytic converter can quickly reach the preset temperature threshold without performing the high fuel consumption catalytic converter ignition operating process after the engine starts.

[0004] To achieve the above purpose, the first aspect of the embodiments of the present application provides a catalytic converter heating control device, which comprises:

[0005] A thermoelectric material heating unit is installed at the front end of the catalytic converter close to the engine side, and is used for heating by passing current through the thermoelectric material or generating electricity by temperature difference;

[0006] A super capacitor assembly comprises at least one super capacitor and is connected to the thermoelectric material heating unit, and is used for providing power for the thermoelectric material heating unit or storing electrical energy;

[0007] A blower is installed at the exhaust pipe between the engine and the catalytic converter, and is used for generating air flow in the exhaust pipe to heat the catalytic converter.

[0008] In some embodiments, the control device further comprises:

[0009] A temperature sensor is installed on the catalytic converter and is used for detecting whether the temperature of the catalytic converter reaches a preset temperature threshold, so that when the temperature of the catalytic converter reaches the preset temperature threshold, the thermoelectric material heating unit is controlled to switch to a temperature difference power generation mode to charge the super capacitor assembly.

[0010] To achieve the above purpose, the second aspect of the embodiments of the present application provides a catalytic converter heating control method, which is executed by the device of the first aspect described above, and the control method comprises:

[0011] controlling the supercapacitor assembly to discharge before the engine starts, to provide power for a thermoelectric material heating unit, so that the thermoelectric material heating unit starts to release heat;

[0012] controlling the air blower to start operating to introduce air into an exhaust line between the engine and the catalytic converter, so that air flow is generated in the exhaust line to heat the catalytic converter;

[0013] controlling the thermoelectric material heating unit to switch to a thermoelectric power generation mode to charge the supercapacitor assembly when it is detected that the temperature of the catalytic converter reaches a preset temperature threshold.

[0014] In some embodiments, before controlling the supercapacitor assembly to discharge, the method comprises:

[0015] after the vehicle is unlocked, obtaining a state of charge of the supercapacitor assembly;

[0016] detecting whether the state of charge of the supercapacitor assembly meets a discharge condition;

[0017] controlling the supercapacitor assembly to discharge when it is detected that the state of charge of the supercapacitor assembly meets the discharge condition.

[0018] In some embodiments, the detecting whether the state of charge of the supercapacitor assembly meets the discharge condition comprises:

[0019] comparing the state of charge of the supercapacitor assembly with a preset threshold;

[0020] if the state of charge exceeds the preset threshold, determining that the state of charge meets the discharge condition;

[0021] if the state of charge does not exceed the preset threshold, determining that the state of charge does not meet the discharge condition.

[0022] In some embodiments, when the state of charge does not exceed the preset threshold, the method comprises:

[0023] controlling a vehicle battery to charge the supercapacitor assembly until the state of charge exceeds the preset threshold.

[0024] In some embodiments, after controlling the air blower to start operating, the method comprises:

[0025] detecting whether the engine starts;

[0026] controlling the air blower to stop operating when it is detected that the engine starts.

[0027] In some embodiments, after controlling the air blower to stop operating when it is detected that the engine starts, the method comprises:

[0028] acquiring a temperature of the catalytic converter through a temperature sensor;

[0029] if the temperature of the catalytic converter exceeds the preset temperature threshold, controlling the thermoelectric material heating unit to switch to a thermoelectric power generation mode to charge the supercapacitor assembly;

[0030] if the temperature of the catalytic converter does not exceed the preset temperature threshold, controlling the thermoelectric material heating unit to continue heating until the temperature of the catalytic converter exceeds the preset temperature threshold.

[0031] To achieve the above object, a third aspect of the embodiments of the present application provides an electronic device, which comprises a memory and a processor, the memory stores a computer program, and the processor implements the method of the first aspect when executing the computer program.

[0032] To achieve the above object, a fourth aspect of the embodiments of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the method of the first aspect.

[0033] The catalytic converter heating control device, method, electronic device and storage medium provided by the present application, the method comprises: before the engine starts, controlling the supercapacitor assembly to discharge to provide power for the thermoelectric material heating unit, so that the thermoelectric material heating unit starts to release heat; controlling the air blower to start running to introduce air into the exhaust pipe between the engine and the catalytic converter, so that air flow is generated in the exhaust pipe to heat the catalytic converter; when it is detected that the temperature of the catalytic converter reaches a preset temperature threshold, controlling the thermoelectric material heating unit to switch to a thermoelectric power generation mode to charge the supercapacitor assembly. Before the engine starts, the supercapacitor assembly, the thermoelectric material heating unit and the air blower are used to heat the catalytic converter, so that after the engine starts, the catalytic converter can quickly reach the preset temperature threshold without performing the high fuel consumption catalytic converter light-off operating process. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a structural schematic diagram of the catalytic converter heating control device provided by the embodiments of the present application;

[0035] Figure 2 is a flowchart of the catalytic converter heating control method provided by the embodiments of the present application;

[0036] Figure 3 is a step flowchart before controlling the supercapacitor assembly to discharge provided by the embodiments of the present application;

[0037] Figure 4is a step flow chart provided by the embodiment of the application for detecting whether the state of charge of the super capacitor assembly meets the discharging condition;

[0038] Figure 5 is a step flow chart provided by the embodiment of the application for controlling the blower to start running;

[0039] Figure 6 is a step flow chart provided by the embodiment of the application for controlling the blower to stop running after detecting the engine starting;

[0040] Figure 7 is a catalytic converter heating control flow chart provided by the embodiment of the application;

[0041] Figure 8 is a hardware structure schematic diagram of the electronic device provided by the embodiment of the application. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0043] It should be noted that although the functional modules are divided in the device schematic diagram, and the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in a different order from the module division in the device or the order in the flow chart. The terms "first", "second", etc. in the specification and claims and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application, and are not intended to limit the present application.

[0045] With the increasing environmental protection requirements, the emission regulations are becoming more and more stringent on the engine emission limit value. It is difficult to meet the emission limit value requirement through engine body technology, and it is necessary to use certain aftertreatment device to purify engine exhaust emissions. The main components of engine exhaust emissions are NOx, CO, THC and PM. Among them, the ignition temperature of CH4 in THC is high. During the engine cold start operation process, due to the low temperature of the catalyst inlet, the CH4 conversion efficiency is very low, and it is almost directly discharged into the environment. Therefore, in order to reduce the CH4 emission amount during the engine cold start operation process, the catalyst carrier needs to be heated before the engine starts. When the catalyst carrier temperature is higher than a certain value, the engine is started, which can reduce the CH4 emission amount during the engine cold start operation process. At the same time, it can reduce the CH4 emission amount of cold WHTC cycle, double idle speed condition and Beijing public bus annual inspection condition, which lays a certain foundation for meeting the emission regulation requirements, especially the more stringent CH4 emission limit value requirement of the national six emission.

[0046] At present, in order to shorten the light-off time of the catalyst, the following schemes are mainly used:

[0047] (1) Taking a gasoline engine as an example, the ignition time is delayed by control, and the fuel injection strategy is adjusted to realize that the engine in-cylinder combustion process is in the exhaust expansion stroke, so as to quickly increase the exhaust temperature and make the catalyst quickly reach the required temperature window;

[0048] (2) For a gasoline engine, in order to make the engine exhaust meet the emission regulation requirements as soon as possible during cold start, two-stage three-way catalyst (TWC) is usually arranged in the exhaust pipe, of which the first stage is a close-coupled catalyst, and the purpose is to realize the rapid increase of the temperature in the catalyst by arranging near the exhaust outlet;

[0049] (3) Using a catalyst assembly with electronic heating assistance, the principle is to use electric heating to quickly raise the temperature of the catalyst head.

[0050] However, these schemes have the following defects:

[0051] Scheme (1) can increase the exhaust temperature by delaying the combustion phase, but it will cause the deterioration of fuel consumption, which is not conducive to the efficient and stable operation of the engine; scheme (2) is a necessary option for two-stage TWC to ensure the full application of exhaust heat, which will increase the development and maintenance cost; in scheme (3), the high electric heating power will cause the instantaneous increase of the vehicle battery load, and there is a great challenge to the service life of the power supply and line components.

[0052] Based on this, the embodiment of the present application proposes a catalytic converter heating control method, which can heat the catalytic converter by using the super capacitor assembly, the thermoelectric material heating unit and the air blower before the engine starts, so that the catalytic converter can quickly reach the preset temperature threshold without performing the catalytic converter light-off operating process with high fuel consumption after the engine starts.

[0053] Referring to Figure 1 , Figure 1 is a structural schematic diagram of a catalytic converter heating control device provided by the embodiment of the present application, which comprises:

[0054] The thermoelectric material heating unit 100 is installed at the front end of the catalytic converter 120 close to the engine 110 side, and is used for heating by passing current through the thermoelectric material or generating electricity by temperature difference;

[0055] The super capacitor assembly 130 comprises at least one super capacitor, is connected with the thermoelectric material heating unit 100 through the DC-DC converter 140, and is used for providing power supply for the thermoelectric material heating unit 100 or storing electric energy;

[0056] The temperature sensor 150 is installed on the catalytic converter 120, and is used for detecting whether the temperature of the catalytic converter 120 reaches the preset temperature threshold, so that when the temperature of the catalytic converter 120 reaches the preset temperature threshold, the thermoelectric material heating unit 100 is switched to the temperature difference power generation mode to charge the super capacitor assembly 130 through the DC-DC converter 140;

[0057] The air blower 160 is installed at the exhaust pipe 180 between the engine 110 and the catalytic converter 120 through the three-way valve 170, and is used for generating air flow in the exhaust pipe to heat the catalytic converter 120.

[0058] In the embodiment of the present application, the number of super capacitors can be determined according to actual needs. For example, when the electric quantity of one super capacitor is insufficient to meet the heating function, multiple super capacitors can be used in the circuit to increase the charge quantity.

[0059] In the embodiment of the present application, by setting the super capacitor assembly, the thermoelectric material heating unit can be provided with power supply before the engine starts, so that after the thermoelectric material heating unit is powered on, it can absorb heat at one end connected with the super capacitor assembly and start to release heat at the other end under the action of electromotive force, thereby meeting the application of high instantaneous discharge power without battery before the engine starts, and avoiding battery power loss when the engine starts. After the thermoelectric material heating unit stops power supply, the super capacitor assembly can be used as a charging and energy storage device to store the electric energy generated by the thermoelectric material heating unit according to the thermoelectric conversion effect.

[0060] In the embodiment of the present application, the thermoelectric material heating unit is arranged at the front end of the catalyst near the engine side, and the thermoelectric material heating unit is connected with the super capacitor assembly through a DC-DC converter. According to the inherent properties of the thermoelectric material, the thermoelectric material heating unit can be electrified in the circuit loop to absorb heat at one end and release heat at the other end. When there is a temperature gradient between the two ends of the material, an electromotive force can be generated in the circuit loop to charge the super capacitor assembly. Specifically, when the super capacitor assembly is discharging, the thermoelectric material heating unit will start to release heat at one end under the action of the electromotive force according to the Thomson effect. After the thermoelectric material heating unit stops supplying power, the circuit loop switches to the charging mode. Due to the contact of one end of the thermoelectric material with high-temperature exhaust gas and the contact of the other end with low-temperature air around, the thermoelectric material will generate a potential difference in the loop under the action of the temperature gradient according to the Seebeck effect, so that the super capacitor assembly can be charged through the DC / DC converter.

[0061] The thermoelectric material is a compound composed of some semiconductors or semimetals with thermoelectric effect, mainly semiconductor materials capable of realizing mutual conversion between thermal energy and electrical energy. Widely used are bismuth telluride (Bi2Te2), lead telluride (PbTe), tin telluride (SnTe), germanium-silicon alloy (Ge-Si), and other some Ⅲ-Ⅴ group metal compounds. Generally, in a closed loop connected by two different conductors, when the temperatures of the two junctions are different, there will be a current flowing in the loop, and the electromotive force generating the current is called thermoelectric electromotive force, which is called Seebeck effect. Conversely, when a current is passed through the loop, one junction will absorb heat and the other junction will release heat, which is called Peltier effect. A thermoelectric generator can be made by using the Seebeck effect. Such materials include P-type Bi2Te3-Sb2Te3, N-type Bi2Te3-Bi2Se3, PbTe-SnTe, and PbTe-PbSe, etc. The thermoelectric generator works stably and has a long service life, and can utilize various energy sources

[0062] It should be noted that, in the embodiment of the present application, since the super capacitor has high power density, it can realize instantaneous high-power operation, and by applying multiple super capacitor groups, the energy density can be increased to ensure sufficient power supply.

[0063] In the embodiment of the present application, it is considered that if only the thermoelectric material heating unit is used to heat the catalyst, it is limited to heating the catalyst by thermal radiation and a small amount of heat convection, and the temperature rising effect is not obvious. Therefore, in the embodiment of the present application, a blower is arranged at the exhaust pipe between the engine and the catalyst through the three-way valve. After the thermoelectric material heating unit is electrified, the blower and the three-way valve are controlled to introduce air into the exhaust pipe, so that hot air flow is generated in the exhaust pipe, thereby the catalyst can be heated by heat convection and heat conduction, and the temperature of the catalyst can quickly reach the preset temperature threshold.

[0064] In this embodiment, a temperature sensor is installed on the catalyst to detect its temperature in real time. Based on whether the detected catalyst temperature reaches a preset temperature threshold, it can be determined whether the thermoelectric heating unit needs to continue heating the catalyst.

[0065] based on Figure 1 The present application discloses a catalyst heating control method, as illustrated in the catalyst heating control device. (Refer to...) Figure 2 , Figure 2 This is a flowchart of the catalyst heating control method provided in the embodiments of this application, by... Figure 1 The device shown is executed, including but not limited to steps S201 to S203.

[0066] Step S201: Before the engine starts, control the supercapacitor assembly to discharge to provide power to the thermoelectric material heating unit, so that the thermoelectric material heating unit starts to release heat.

[0067] In this embodiment, after the vehicle is unlocked by the remote key or physical key, before the engine is started, the supercapacitor assembly and the thermoelectric heating unit are controlled to form a circuit loop. The supercapacitor is controlled to discharge, so that the thermoelectric heating unit, under the action of electromotive force, begins to release heat at one end according to the Thomson effect. That is, the heating process of the thermoelectric heating unit is executed. During this process, the supercapacitor assembly exists as a power source in the circuit, that is, it provides power to the thermoelectric heating unit.

[0068] Reference Figure 3 , Figure 3 This is a flowchart of the steps before controlling the discharge of the supercapacitor assembly provided in the embodiments of this application, including but not limited to steps S301 to S303.

[0069] Step S301: After the vehicle is unlocked, obtain the state of charge of the supercapacitor component.

[0070] Step S302: Detect whether the state of charge of the supercapacitor module meets the discharge conditions;

[0071] Step S303: When the state of charge of the supercapacitor module is detected to meet the discharge conditions, the supercapacitor module is controlled to discharge.

[0072] In the embodiments of the present application, before the engine is started after the vehicle is unlocked, the state of charge of the supercapacitor assembly needs to be acquired to determine whether the state of charge of the supercapacitor assembly meets the discharge condition. When it is detected that the state of charge of the supercapacitor assembly meets the discharge condition, the supercapacitor assembly is controlled to discharge. The state of charge of the supercapacitor is based on the actually measured capacitance energy and is expressed as a percentage of the square of the maximum nominal voltage of the capacitor. The supercapacitor (supercapacitor, ultracapacitor) is also called electrical double-layer capacitor (Electrical Doule-Layer Capacitor), gold capacitor, and farad capacitor. It stores energy through polarized electrolyte. It is an electrochemical element, but no chemical reaction occurs during energy storage. This energy storage process is reversible, and the supercapacitor can be repeatedly charged and discharged hundreds of thousands of times.

[0073] Reference Figure 4 , Figure 4 is a step flowchart provided by the embodiments of the present application for detecting whether the state of charge of the supercapacitor assembly meets the discharge condition, including but not limited to steps S401 to S403.

[0074] Step S401, compare the state of charge of the supercapacitor assembly with a preset threshold value;

[0075] Step S402, if the state of charge exceeds the preset threshold value, it is determined that the state of charge meets the discharge condition;

[0076] Step S403, if the state of charge does not exceed the preset threshold value, it is determined that the state of charge does not meet the discharge condition.

[0077] In the embodiments of the present application, after the state of charge of the supercapacitor assembly is acquired, the state of charge of the supercapacitor assembly is further compared with a preset threshold value. If the state of charge exceeds the preset threshold value, it is determined that the state of charge meets the discharge condition. At this time, the supercapacitor assembly and the thermoelectric material heating unit can be directly controlled to form a loop to control the supercapacitor assembly to discharge, so that the thermoelectric material heating unit starts to release heat at one end under the action of electromotive force according to the Thomson effect. If the state of charge does not exceed the preset threshold value, it is determined that the state of charge does not meet the discharge condition. At this time, the vehicle battery needs to be controlled to charge the supercapacitor assembly until the state of charge exceeds the preset threshold value. The vehicle battery is controlled to stop charging the supercapacitor assembly, and the supercapacitor assembly is controlled to provide power to the thermoelectric material heating unit.

[0078] In the embodiment of the present application, before the engine starts, the super capacitor assembly is combined with the thermoelectric material heating unit to preheat the gas in front of the catalytic converter, so that the engine does not need to perform the catalytic converter light-off operating process with high fuel consumption after starting. The thermoelectric material is used as the basic material of the heating unit, and the super capacitor assembly is used as the discharge power supply and charging energy storage device. On the one hand, it can realize instantaneous high-power output and quickly heat the gas in front of the catalytic converter; on the other hand, it can use the thermoelectric conversion effect of the thermoelectric material to realize the electric energy conversion function under the condition that there is a temperature gradient in the normal running state of the engine, and the whole process does not need additional fuel consumption.

[0079] In step S202, the blower is controlled to start running to introduce air into the exhaust pipeline between the engine and the catalytic converter, so that air flow is generated in the exhaust pipeline to heat the catalytic converter.

[0080] In the embodiment of the present application, if only the super capacitor assembly and the thermoelectric material heating unit are combined to heat the catalytic converter, it is limited to heating the catalytic converter by heat radiation and a small amount of heat convection, and the temperature rising effect is not obvious. Therefore, in order to accelerate the rate at which the temperature of the catalytic converter reaches the preset temperature threshold, the three-way valve is controlled to switch to the bypass state and the blower is controlled to start running to introduce air into the exhaust pipeline between the engine and the catalytic converter, so that hot air flow is generated in the exhaust pipeline to quickly heat the catalytic converter by heat convection and heat conduction.

[0081] Referring to Figure 5 , Figure 5 is a step flowchart executed after the blower is controlled to start running according to the embodiment of the present application, including but not limited to steps S501 to S502.

[0082] In step S501, it is detected whether the engine starts;

[0083] In step S502, when it is detected that the engine starts, the blower is controlled to stop running.

[0084] In the embodiment of the present application, after the three-way valve is controlled to switch to the bypass state and the blower is controlled to start running to introduce air into the exhaust pipeline between the engine and the catalytic converter, so that hot air flow is generated in the exhaust pipeline to heat the catalytic converter by heat convection and heat conduction, if it is detected that the engine starts, because the engine starting operation will carry a certain amount of exhaust, therefore, after the engine starts, the three-way valve is controlled to switch to the initial state and the blower is controlled to stop running. At this time, only the engine exhaust can realize the gas flow in the exhaust pipeline, that is, the engine exhaust can make hot air flow generated in the exhaust pipeline to quickly heat the catalytic converter by heat convection and heat conduction.

[0085] In the embodiment of the present application, it is considered that although the initial exhaust gas after the engine starts has a high temperature, the exhaust gas inevitably has heat loss when flowing in the exhaust pipe, and the temperature of the exhaust gas is not high when reaching the catalyst. Therefore, after the engine starts, only the three-way valve is controlled to switch to the initial state and the air blower is controlled to stop running, and the thermoelectric material heating unit is not controlled to stop heating. That is, after the engine starts, the thermoelectric material heating unit needs to continue heating.

[0086] Referring to Figure 6 , Figure 6 is a step flow chart provided by the embodiment of the present application, which is executed after the engine is detected to start and the air blower is controlled to stop running, and includes but is not limited to steps S601 to S603.

[0087] Step S601, obtaining the temperature of the catalyst through a temperature sensor;

[0088] Step S602, if the temperature of the catalyst exceeds a preset temperature threshold, controlling the thermoelectric material heating unit to switch to a thermoelectric generation mode to charge the supercapacitor assembly;

[0089] Step S603, if the temperature of the catalyst does not exceed the preset temperature threshold, controlling the thermoelectric material heating unit to continue heating until the temperature of the catalyst exceeds the preset temperature threshold.

[0090] In the embodiment of the present application, after the engine is detected to start and the three-way valve is controlled to switch to the initial state and the air blower is controlled to stop running, the thermoelectric material heating unit continues to heat, that is, the temperature of the catalyst continues to rise. At this time, the temperature of the catalyst can be obtained through the temperature sensor, and then it is judged whether the temperature of the catalyst exceeds the preset temperature threshold. Specifically, if the temperature of the catalyst exceeds the preset temperature threshold, the thermoelectric material heating unit is controlled to switch to the thermoelectric generation mode to charge the supercapacitor assembly through the DC-DC converter; if the temperature of the catalyst does not exceed the preset temperature threshold, the thermoelectric material heating unit is controlled to continue heating until the temperature of the catalyst exceeds the preset temperature threshold, and the thermoelectric material heating unit is controlled to reverse power supply to charge the supercapacitor assembly.

[0091] Step S203, when it is detected that the temperature of the catalyst reaches the preset temperature threshold, controlling the thermoelectric material heating unit to switch to the thermoelectric generation mode to charge the supercapacitor assembly.

[0092] In the embodiment of the present application, only when the temperature of the catalytic converter reaches the preset temperature threshold, the thermoelectric material heating unit is controlled to switch to the thermoelectric generation mode to charge the super capacitor assembly through the DC-DC converter. Specifically, when the temperature of the catalytic converter reaches the preset temperature threshold, the temperature of the thermoelectric material heating unit itself also reaches the corresponding switching temperature range, that is, the thermoelectric material heating unit automatically switches to the thermoelectric generation mode after reaching the switching temperature range, so as to charge the super capacitor assembly through the DC-DC converter.

[0093] Specifically, after the thermoelectric material heating unit stops supplying power, the circuit loop switches to the super capacitor charging mode. The thermoelectric material heating unit contacts the high-temperature exhaust gas at one end and the low-temperature air around at the other end, and generates a potential difference in the loop according to the Seebeck effect under the action of the temperature gradient, which charges the super capacitor assembly through the DC / DC converter.

[0094] Referring to Figure 7 , Figure 7 is a catalytic converter heating control flowchart provided by the embodiment of the present application, including but not limited to steps S701 to S709.

[0095] Step S701, the vehicle is unlocked;

[0096] Step S702, detecting whether the state of charge of the super capacitor assembly exceeds the preset threshold;

[0097] Step S703, if the state of charge of the super capacitor assembly does not exceed the preset threshold, controlling the storage battery to charge the super capacitor assembly;

[0098] Step S704, if the state of charge of the super capacitor assembly exceeds the preset threshold, controlling the super capacitor assembly to supply power to the thermoelectric material heating unit;

[0099] Step S705, controlling the three-way valve to switch to the bypass state and controlling the air blower to start running;

[0100] Step S706, detecting whether the engine is started;

[0101] Step S707, if it is detected that the engine is started, controlling the three-way valve to switch to the initial state and controlling the air blower to stop running;

[0102] Step S708, detecting whether the temperature of the catalytic converter exceeds the preset temperature threshold;

[0103] Step S709, if the temperature of the catalytic converter exceeds the preset temperature threshold, controlling the thermoelectric material heating unit to charge the super capacitor assembly reversely.

[0104] The electronic device can be any intelligent terminal including a tablet computer, a vehicle-mounted computer, etc.

[0105] Please refer to Figure 8 , Figure 8 The hardware structure of the electronic device of another embodiment is illustrated, and the electronic device includes:

[0106] The processor 801 can be implemented in a general-purpose CPU (Central Processing Unit), a microprocessor, an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits, etc., and is used to execute related programs to implement the technical solutions provided by the embodiments of the present application.

[0107] The memory 802 can be implemented in the form of a ROM (ReadOnly Memory), a static storage device, a dynamic storage device, or a RAM (Random Access Memory), etc. The memory 802 can store an operating system and other application programs, and when the technical solutions provided by the embodiments of the present application are implemented by software or firmware, the related program codes are stored in the memory 802 and are called and executed by the processor 801 to implement the catalytic converter heating control method of the embodiments of the present application.

[0108] The input / output interface 803 is used to realize information input and output.

[0109] The communication interface 804 is used to realize the communication interaction between the device and other devices, and can realize communication through a wired manner (such as a USB, a network cable, etc.) or a wireless manner (such as a mobile network, WIFI, Bluetooth, etc.).

[0110] The bus 805 is used to transmit information between various components (such as the processor 801, the memory 802, the input / output interface 803, and the communication interface 804) of the device.

[0111] The processor 801, the memory 802, the input / output interface 803, and the communication interface 804 are connected to each other through the bus 805 to realize communication connection within the device.

[0112] The embodiments described in the specification are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0113] Those skilled in the art can understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and can include more or fewer steps than shown in the figures, or combine certain steps, or different steps.

[0114] The device embodiments described above are only schematic, and the units described as separate components can or can not be physically separate, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0115] Those skilled in the art can understand that all or some of the steps in the above disclosed method, the functional modules / units in the system and the device can be implemented as software, firmware, hardware and their appropriate combinations.

[0116] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and above-described drawings of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. 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 including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0117] It should be understood that, in the application, "at least one" refers to one or more, and "multiple" refers to two or more. "And / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, "A and / or B" can represent three cases of only A, only B, and A and B existing at the same time, wherein A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can represent a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, and c can be single or multiple.

[0118] In several embodiments provided in the application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the above units is only a logical function division, and actual implementation can have another division manner, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0119] The units described above as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on multiple network units. According to actual needs, some or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0120] In addition, each functional unit in each embodiment of the application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0121] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, essentially or in other words, the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes multiple instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program storage media.

[0122] The preferred embodiments of the embodiments of the present application are described above with reference to the accompanying drawings, and are not limited to the scope of the embodiments of the present application. Any modifications, equivalent replacements and improvements made by those skilled in the art without departing from the scope and essence of the embodiments of the present application shall be within the scope of the embodiments of the present application.

Claims

1. A catalytic converter heating control device characterized by comprising: The device comprises: a thermoelectric material heating unit installed at the front end of the catalytic converter close to the engine side, for heating by electric current or generating electricity by thermoelectric effect; a super capacitor assembly comprising at least one super capacitor, connected to the thermoelectric material heating unit, for providing power to the thermoelectric material heating unit or for storing electric energy; a blower installed at the exhaust pipe between the engine and the catalytic converter, and the blower is located between the engine and the thermoelectric material heating unit, for generating air flow in the exhaust pipe to heat the catalytic converter.

2. The apparatus of claim 1, wherein, The control device further comprises: a temperature sensor installed on the catalytic converter, for detecting whether the temperature of the catalytic converter reaches a preset temperature threshold, so that when the temperature of the catalytic converter reaches the preset temperature threshold, the thermoelectric material heating unit is controlled to switch to the thermoelectric generation mode to charge the super capacitor assembly.

3. A catalytic converter heating control method characterized by, The catalytic converter heating control device according to claim 2 performs the control method, which comprises: before the engine starts, controlling the super capacitor assembly to discharge to provide power to the thermoelectric material heating unit, so that the thermoelectric material heating unit starts to release heat; controlling the blower to start running to introduce air into the exhaust pipe between the engine and the catalytic converter, so that air flow is generated in the exhaust pipe to heat the catalytic converter; when it is detected that the temperature of the catalytic converter reaches the preset temperature threshold, controlling the thermoelectric material heating unit to switch to the thermoelectric generation mode to charge the super capacitor assembly.

4. The method of claim 3, wherein, Before discharging the super capacitor assembly, the method comprises: after the vehicle is unlocked, obtaining the state of charge of the super capacitor assembly; detecting whether the state of charge of the super capacitor assembly meets the discharge condition; when it is detected that the state of charge of the super capacitor assembly meets the discharge condition, controlling the super capacitor assembly to discharge.

5. The method of claim 4, wherein, The detection of whether the state of charge of the super capacitor assembly meets the discharge condition comprises: comparing the state of charge of the super capacitor assembly with a preset threshold; if the state of charge exceeds the preset threshold, determining that the state of charge meets the discharge condition; if the state of charge does not exceed the preset threshold, determining that the state of charge does not meet the discharge condition.

6. The method of claim 5, wherein, When the state of charge does not exceed the preset threshold, the method comprises: controlling the vehicle battery to charge the super capacitor assembly until the state of charge exceeds the preset threshold.

7. The method of claim 3, wherein, After controlling the blower to start running, the method comprises: detecting whether the engine starts; when it is detected that the engine starts, controlling the blower to stop running.

8. The method of claim 7, wherein, After controlling the blower to stop running when it is detected that the engine starts, the method comprises: obtaining the temperature of the catalytic converter by the temperature sensor; if the temperature of the catalytic converter exceeds the preset temperature threshold, controlling the thermoelectric material heating unit to switch to the thermoelectric generation mode to charge the super capacitor assembly; If the temperature of the catalytic converter does not exceed the preset temperature threshold, the thermoelectric material heating unit is controlled to continue heating until the temperature of the catalytic converter exceeds the preset temperature threshold.

9. An electronic device, comprising: The electronic device comprises a memory and a processor, the memory stores a computer program, and the processor implements the method in any one of claims 3 to 8 when executing the computer program.

10. A computer readable storage medium, the storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the method in any one of claims 3 to 8.

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