Insulation failure processing system and method

Abstract

The invention provides an insulation failure processing system and method. The system comprises an insulation detection trigger module, a central control module, a plurality of insulation related modules and a central power distribution module. The central control module is connected with the central power distribution module, the insulation detection trigger module and the insulation-related modules. The central power distribution module is connected with the insulation-related modules. The central control module controls an insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each insulation related module based on the insulation detection instruction to obtain a detection result of each insulation related module; the central control module is further used for determining a fault insulation module in the multiple insulation related modules and conducting insulation failure processing on the whole vehicle work data or all the insulation related modules according to the work data of the insulation related modules of the same type as the fault insulation module. Therefore, when partial insulation related modules have insulation failure problems, normal driving running of the whole vehicle can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and in particular to a system and method for processing insulation failure. Background Art

[0002] In the field of electric vehicles, the working environment of electric vehicles is complex. Vibration, temperature, humidity and component aging can cause the insulation performance of the vehicle to deteriorate or cause the insulation performance to expire. When any insulation branch in an electric vehicle fails, the entire vehicle will stop working, causing the electric vehicle to be unable to operate normally.

[0003] Therefore, how to ensure the normal operation of electric vehicles when insulation aging occurs is a problem that needs to be solved. Summary of the invention

[0004] The purpose of the present application is to provide a system and method for processing insulation failure in view of the above-mentioned deficiencies in the prior art, so as to ensure the normal operation of the electric vehicle when insulation failure occurs.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] In a first aspect, an embodiment of the present application provides an insulation failure processing system, the system comprising: an insulation detection trigger module, a central control module, a plurality of insulation-related modules, and a central power distribution module;

[0007] The central control module is respectively connected to the central power distribution module, the insulation detection trigger module and each of the insulation related modules;

[0008] The central power distribution module is connected to each insulation-related module respectively, and the central power distribution module includes an insulation resistance test unit;

[0009] The insulation detection trigger module is used to send an insulation detection instruction to the central control module;

[0010] The central control module controls the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each of the insulation-related modules based on the insulation detection instruction, and obtains the detection results of each of the insulation-related modules;

[0011] The central control module is also used to determine the faulty insulation module among the multiple insulation-related modules according to the detection results of each of the insulation-related modules, and perform insulation failure processing on the vehicle working data or each of the insulation-related modules according to the working data of the insulation-related modules of the same type as the faulty insulation module.

[0012] Optionally, the central power distribution module further includes relays corresponding one-to-one to each of the insulation-related modules;

[0013] The first end of each relay is connected to the corresponding insulation-related module, the second end of each relay is connected to the central control module, and the third end of each relay is connected to the high-voltage circuit;

[0014] The central control module is specifically used to control the opening and closing of each of the relays, and to control the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each of the insulation-related modules respectively, to obtain the detection results of each of the insulation-related modules.

[0015] Optionally, the number of the insulation resistance test units is the same as the number of the relays and corresponds one to one;

[0016] The first end of each of the relays is connected to the insulation-related module through the insulation resistance test unit;

[0017] The central control module is specifically used to determine the current insulation-related module, control the relay corresponding to the current insulation-related module to disconnect, and control the insulation resistance test unit connected to the current insulation-related module to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0018] Optionally, the number of the insulation resistance test unit is one;

[0019] The insulation resistance testing unit is connected to the third end of each of the relays;

[0020] The central control module is specifically used to determine the current insulation-related module, and control the relay corresponding to the current insulation-related module to close, and control the relays corresponding to each insulation-related module except the current insulation-related module to disconnect, and control the insulation resistance testing unit to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0021] Optionally, the plurality of insulation-related modules include at least one energy storage module, at least one drive motor module and at least one high-voltage power module.

[0022] Optionally, the central control module is specifically used to determine the faulty insulation module based on the detection results of each energy storage module, the detection results of each drive motor module and the detection results of each high-voltage power module, and to perform insulation failure processing on the vehicle working data or each insulation-related module based on the working data of the insulation-related modules of the same type as the faulty insulation module.

[0023] Optionally, the central control module is specifically used to:

[0024] If the faulty insulation module is an energy storage module, the relay corresponding to the faulty insulation module is disconnected, and the current power of each energy storage module except the faulty insulation module is obtained, and the current total power is determined according to the current power of each energy storage module, and the maximum power of the whole vehicle when working is adjusted to the current total power.

[0025] Optionally, the central control module is specifically used to:

[0026] If the faulty insulation module is a drive motor module, the relay corresponding to the faulty insulation module is disconnected, and the current working data of each drive motor module except the faulty insulation module is obtained, and the current total working data is determined based on each current working data, and the maximum value of the working data of the drive motor of the whole vehicle is adjusted to the current total working data, and the current working data includes: torque and power.

[0027] Optionally, the central control module is specifically used to:

[0028] If the faulty insulation module is a high-voltage power module, and the component type of the high-voltage power module is a high-risk component, disconnecting the relay connected to the faulty insulation module;

[0029] If the component type of the high-voltage power module is a non-high-risk component, the relay connected to the fault isolation module is kept closed.

[0030] In a second aspect, an embodiment of the present application further provides a method for processing insulation failure, which is applied to the central control module described in the first aspect, and the method includes:

[0031] Receiving the insulation detection instruction sent by the insulation detection trigger module;

[0032] Based on the insulation detection instruction, the insulation resistance test unit in the central power distribution module is controlled to perform insulation resistance detection on each insulation-related module to obtain the detection result of each insulation-related module;

[0033] Determine the faulty insulation module according to the detection results of each of the insulation-related modules;

[0034] According to the faulty insulation module and other insulation-related modules of the same type as the faulty insulation module, insulation failure processing is performed on the whole vehicle working data or each of the insulation-related modules.

[0035] Optionally, the central power distribution module further includes relays corresponding one-to-one to each of the insulation-related modules;

[0036] The first end of each relay is connected to the corresponding insulation-related module, the second end of each relay is connected to the central control module, and the third end of each relay is connected to the high-voltage circuit;

[0037] The method of controlling the insulation resistance test unit in the central power distribution module to perform insulation resistance test on each insulation-related module based on the insulation test instruction to obtain the test results of each insulation-related module includes:

[0038] Control the opening and closing of each of the relays, and control the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each of the insulation-related modules respectively, to obtain the detection results of each of the insulation-related modules.

[0039] Optionally, the number of the insulation resistance test units is the same as the number of the relays and corresponds one to one;

[0040] The first end of each of the relays is connected to the insulation-related module through the insulation resistance test unit;

[0041] The control of opening and closing of each of the relays and controlling the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each of the insulation-related modules respectively to obtain the detection results of each of the insulation-related modules includes:

[0042] Determine the current insulation related modules;

[0043] The relay corresponding to the current insulation-related module is controlled to be disconnected, and the insulation resistance test unit connected to the current insulation-related module is controlled to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0044] Optionally, the number of the insulation resistance test unit is one;

[0045] The insulation resistance testing unit is connected to the third end of each of the relays;

[0046] The control of opening and closing of each of the relays and controlling the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each of the insulation-related modules respectively to obtain the detection results of each of the insulation-related modules includes:

[0047] Determine the current insulation related modules;

[0048] Control the relay corresponding to the current insulation-related module to close, control the relays corresponding to each insulation-related module except the current insulation-related module to open, and control the insulation resistance testing unit to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0049] Optionally, the plurality of insulation-related modules include at least one energy storage module, at least one drive motor module and at least one high-voltage power module;

[0050] The step of determining the faulty insulation module according to the detection results of each insulation-related module includes:

[0051] According to the detection results of each energy storage module, the detection results of each drive motor module and the detection results of each high-voltage power module, the faulty insulation module is determined, and according to the working data of the insulation-related modules of the same type as the faulty insulation module, insulation failure processing is performed on the vehicle working data or each of the insulation-related modules.

[0052] Optionally, performing insulation failure processing on the whole vehicle working data or each of the insulation-related modules according to the working data of the insulation-related modules of the same type as the faulty insulation module includes:

[0053] If the faulty insulation module is an energy storage module, the relay corresponding to the faulty insulation module is disconnected, and the current power of each energy storage module except the faulty insulation module is obtained, and the current total power is determined according to the current power of each energy storage module, and the maximum power of the whole vehicle when working is adjusted to the current total power.

[0054] Optionally, performing insulation failure processing on the whole vehicle working data or each of the insulation-related modules according to the working data of the insulation-related modules of the same type as the faulty insulation module includes:

[0055] If the faulty insulation module is a drive motor module, the relay corresponding to the faulty insulation module is disconnected, and the current working data of each drive motor module except the faulty insulation module is obtained, and the current total working data is determined based on each current working data, and the maximum value of the working data of the drive motor of the whole vehicle is adjusted to the current total working data, and the current working data includes: torque and power.

[0056] Optionally, performing insulation failure processing on the whole vehicle working data or each of the insulation-related modules according to the working data of the insulation-related modules of the same type as the faulty insulation module includes:

[0057] If the faulty insulation module is a high-voltage power module, and the component type of the high-voltage power module is a high-risk component, disconnecting the relay connected to the faulty insulation module;

[0058] If the component type of the high-voltage power module is a non-high-risk component, the relay connected to the fault isolation module is kept closed.

[0059] In a third aspect, an embodiment of the present application further provides an electric vehicle, comprising the insulation failure processing system described in the first aspect.

[0060] The beneficial effects of this application are:

[0061] The present application provides a system and method for processing insulation failure, which controls the insulation resistance test unit in the central distribution module based on the insulation detection instruction to perform insulation resistance detection on each insulation-related module, and determines the faulty insulation module according to the detection results of each insulation-related module detected, and then performs insulation failure processing on the working data of the whole vehicle or each insulation-related module according to the working data of the insulation-related modules of the same type as the faulty insulation module, so that when the insulation failure problem occurs in some insulation-related modules of the whole vehicle, the whole vehicle can still be driven normally or some components can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 A schematic diagram of the structure of an insulation failure processing system provided in an embodiment of the present application;

[0064] Figure 2 A schematic diagram of the structure of a second insulation failure processing system provided in an embodiment of the present application;

[0065] Figure 3 A schematic diagram of the structure of a third insulation failure processing system provided in an embodiment of the present application;

[0066] Figure 4 A schematic structural diagram of a fourth insulation failure processing system provided in an embodiment of the present application;

[0067] Figure 5 A schematic structural diagram of a fifth insulation failure processing system provided in an embodiment of the present application;

[0068] Figure 6 A schematic flow chart of a method for handling insulation failure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0069] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart under the guidance of the content of the present application, or remove one or more operations from the flowchart.

[0070] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0071] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0072] Figure 1 A schematic diagram of the structure of an insulation failure processing system provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the insulation failure processing system may include: an insulation detection trigger module 10 , a central control module 11 , a plurality of insulation-related modules and a central power distribution module 13 .

[0073] like Figure 1 As shown, the central control module 11 can be connected to the central power distribution module 13, the insulation detection trigger module 10 and each insulation-related module respectively, and the central power distribution module 13 can be connected to each insulation-related module respectively, wherein the central power distribution module 13 includes an insulation resistance test unit 130, and the insulation resistance test unit 130 can be connected to the central control module 11. Among them, the insulation-related module refers to a branch circuit including an insulation resistance, that is, a branch circuit with insulation performance.

[0074] Optionally, the insulation detection trigger module 10 can send an insulation detection instruction to the central control module 11, wherein the insulation detection trigger module 10 can be, for example, a key button. When the user determines that the electric vehicle being driven has an insulation failure problem, the key button can be triggered. Then, the insulation detection trigger module 10 can send an insulation detection instruction to the central control module 11, and the insulation detection instruction refers to performing insulation detection on all insulation-related modules in the electric vehicle.

[0075] Optionally, the central control module 11 can control the insulation resistance test unit 130 in the central power distribution module 13 to perform insulation resistance test on each insulation-related module based on the insulation detection instruction, and obtain the test results of each insulation-related module. The insulation detection instruction can also include a detection sequence, and the central control module 11 can control the insulation resistance test unit 130 in the central power distribution module 13 to perform insulation resistance test on each insulation-related module based on the detection sequence in the insulation detection instruction, so as to obtain the test results of each insulation-related module.

[0076] Optionally, the central control module 11 can also be used to determine the faulty insulation module among multiple insulation-related modules according to the detection results of each insulation-related module, and perform insulation failure processing on the vehicle working data or each insulation-related module according to the working data of the insulation-related modules of the same type as the faulty insulation module.

[0077] Exemplarily, the central control module 11 can determine the faulty insulation module among the multiple insulation-related modules according to the detection results of each insulation-related module detected. Specifically, the insulation resistance of each insulation-related module detected can be compared with a preset threshold value, and the insulation-related module with an insulation resistance value less than the preset threshold value can be used as the faulty insulation module. For example, if the faulty insulation module determined is 121, then the insulation failure processing can be performed on the whole vehicle working data or each insulation-related module according to the working data of the insulation-related modules of the same type as the faulty insulation module 121. For example, the insulation-related modules of the same type as the faulty insulation module 121 include insulation-related modules 122, insulation-related modules 123, and insulation-related modules 124. Then, the insulation failure processing can be performed on the whole vehicle working data or each insulation-related module according to the working data of the insulation-related module 122, the working data of the insulation-related module 123, and the working data of the insulation-related module 124. Specifically, the working data of the whole vehicle or the working data of each insulation-related module can be adjusted so that the whole vehicle can still operate normally when some insulation-related modules fail.

[0078] In this embodiment, the central control module controls the insulation resistance testing unit in the central power distribution module based on the insulation detection instruction to perform insulation resistance detection on each insulation-related module, and determines the faulty insulation module according to the detection results of each insulation-related module detected, and then performs insulation failure processing on the whole vehicle working data or each insulation-related module according to the working data of the insulation-related modules of the same type as the faulty insulation module, so that when the insulation failure problem occurs in some insulation-related modules of the whole vehicle, the whole vehicle can still be driven normally or some components can work normally.

[0079] Figure 2 A schematic diagram of the structure of a second insulation failure processing system provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the central power distribution module 13 may also include relays corresponding to each insulation-related module.

[0080] like Figure 2 As shown, one end of each relay can be connected to the corresponding insulation-related module 12, the second end of each relay can be connected to the central control module 11, and the third end of each relay is connected to the high-voltage circuit.

[0081] Exemplarily, one end of the relay 131 may be connected to the insulation-related module 121, the second end of the relay 131 may be connected to the central control module 11, and the third end of the relay 131 may be connected to the high-voltage circuit; one end of the relay 132 may be connected to the insulation-related module 122, the second end of the relay 132 may be connected to the central control module 11, and the third end of the relay 132 may be connected to the high-voltage circuit; one end of the relay 133 may be connected to the insulation-related module 123, the second end of the relay 133 may be connected to the central control module 11, and the third end of the relay 133 may be connected to the high-voltage circuit; one end of the relay 134 may be connected to the insulation-related module 124, the second end of the relay 134 may be connected to the central control module 11, and the third end of the relay 134 may be connected to the high-voltage circuit. And so on.

[0082] Optionally, the central control module 11 is specifically used to control the opening and closing of each relay. Specifically, the central control module 11 can control the opening and closing of each relay through the second end of each relay, and control the insulation resistance testing unit 130 in the central power distribution module 13 to perform insulation resistance detection on each insulation-related module 12 respectively, and obtain the detection results of each insulation-related module 12.

[0083] Exemplarily, the central control module 11 can control the disconnection and closing of the relay 131, and control the insulation resistance test unit 130 in the central power distribution module 13 to perform insulation resistance detection on the insulation-related module 121 connected to the relay 131, and obtain the detection result of the insulation-related module 121; the central control module 11 can control the disconnection and closing of the relay 132, and control the insulation resistance test unit 130 in the central power distribution module 13 to perform insulation resistance detection on the insulation-related module 122 connected to the relay 132, and obtain the detection result of the insulation-related module 122; the central control module 11 can control the disconnection and closing of the relay 133, and control the insulation resistance test unit 130 in the central power distribution module 13 to perform insulation resistance detection on the insulation-related module 123 connected to the relay 133, and obtain the detection result of the insulation-related module 123. And so on.

[0084] Figure 3 A schematic diagram of the structure of a third insulation failure processing system provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the number of insulation resistance test units is the same as the number of relays and corresponds one to one, and one end of each relay can be connected to the insulation-related module through the insulation resistance test unit.

[0085] Exemplarily, the first end of the relay 131 can be connected to the insulation-related module 121 through the insulation resistance testing unit 1301; the first end of the relay 132 can be connected to the insulation-related module 122 through the insulation resistance testing unit 1302; the first end of the relay 133 can be connected to the insulation-related module 123 through the insulation resistance testing unit 1303, and so on.

[0086] Optionally, when the first end of each relay can be connected to the insulation-related module through the insulation resistance testing unit, the process of the central control module 11 controlling the insulation resistance testing unit to detect each insulation-related module is as follows: the central control module 11 can determine the current insulation-related module, wherein the current insulation-related module is the insulation-related module to be detected, and control the relay corresponding to the current insulation-related module to be disconnected, and control the insulation resistance testing unit connected to the current insulation-related module to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0087] Exemplarily, if the current insulation-related module is the insulation-related module 121, the central control module 11 can control the relay 131 corresponding to the current insulation-related module 121 to disconnect, and control the insulation resistance testing unit 1301 connected to the current insulation-related module 121 to perform insulation resistance detection on the current insulation-related module 121 to obtain the detection result of the current insulation-related module.

[0088] Figure 4A schematic diagram of the structure of a fourth insulation failure processing system provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the number of the insulation resistance test unit is one.

[0089] like Figure 4 As shown, when the number of the insulation resistance test unit 130 is one, the insulation resistance test unit 130 is connected to the third terminal of each relay.

[0090] Exemplarily, the insulation resistance testing unit 130 can be connected to the third end of the relay 131, the third end of the relay 132, the third end of the relay 133, and the third end of the relay 134, respectively; the first end of the relay 131 is connected to the insulation-related module 121, the first end of the relay 132 is connected to the insulation-related module 122, the first end of the relay 133 can be connected to the insulation-related module 123, and the first end of the relay 134 is connected to the insulation-related module 124.

[0091] Optionally, when there is only one insulation resistance testing unit 130, the central control module 11 can be specifically used to determine the current insulation-related module, and control the relay corresponding to the current insulation-related module to close, and control the relays corresponding to each insulation-related module except the current insulation-related module to disconnect, and control the insulation resistance testing unit 130 to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0092] Exemplarily, if the current insulation-related module is the insulation-related module 122, the central control module 11 can control the relay 132 corresponding to the current insulation-related module 122 to close, and control the relays corresponding to each insulation-related module other than the current insulation-related module 122 to disconnect. At this time, the insulation resistance testing unit 130 can be controlled to perform an insulation resistance test on the current insulation-related module 122 to obtain the detection result of the current insulation-related module 122.

[0093] Figure 5 A schematic diagram of the structure of a fifth insulation failure processing system provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, the plurality of insulation-related modules may include: at least one energy storage module, at least one drive motor module and at least one high-voltage power module.

[0094] like Figure 5 As shown, the central control module 11 can be connected to each energy storage module, each drive motor module and each high-voltage power module respectively, each energy storage module is connected to a corresponding relay, each drive motor module is connected to a corresponding relay, and each high-voltage power module is connected to each relay.

[0095] Optionally, the central control module can be specifically used to determine the faulty insulation module based on the detection results of each energy storage module, the detection results of each drive motor module and the detection results of each high-voltage power module, and perform insulation failure processing on the vehicle working data or each insulation-related module based on the working data of the insulation-related modules of the same type as the faulty insulation module.

[0096] Optionally, the central control module is specifically used for: if the faulty insulation module is an energy storage module, disconnecting the relay corresponding to the faulty insulation module, and obtaining the current power of each energy storage module except the faulty insulation module, and determining the current total power according to the current power of each energy storage module, and adjusting the maximum power of the whole vehicle when it is working to the current total power.

[0097] Exemplarily, if the whole vehicle includes three energy storage modules, energy storage module 1, energy storage module 2 and energy storage module 3, when it is determined that the faulty insulation module is energy storage module 1, the relay corresponding to energy storage module 1 is disconnected, the current power of energy storage module 2 is 100kw and the current power of energy storage module 3 is 100kw, and it is determined that the current total power of energy storage module 2 and energy storage module 3 is 200kw, then the maximum power of the whole vehicle during operation is adjusted to 200kw.

[0098] Optionally, the central control module is specifically used to: if the faulty insulation module is a drive motor module, disconnect the relay corresponding to the faulty insulation module, obtain the current working data of each drive motor module other than the faulty insulation module, determine the current total working data based on each current working data, and adjust the maximum value of the working data of the drive motor of the whole vehicle to the current total working data. The current working data may include power and torque.

[0099] Exemplarily, if the whole vehicle includes three drive motor modules, drive motor module 1, drive motor module 2 and drive motor module 3, when it is determined that the faulty insulation module is drive motor module 2, the relay corresponding to drive motor module 2 is disconnected. At this time, the current power and torque of drive motor module 1 and the current power and torque of drive motor module 3 are obtained, and the current total power and the current total torque are obtained, and the maximum power of the drive motor of the whole vehicle is adjusted to the current total power, and the torque of the drive motor of the whole vehicle is adjusted to the current total torque.

[0100] Optionally, the central control module is specifically used to: if the faulty insulation module is a high-voltage power module, and the component type of the high-voltage power module is a high-risk component, then the relay connected to the faulty insulation module will be disconnected; if the component type of the high-voltage power module is a non-high-risk component, then the relay connected to the faulty insulation module will remain closed.

[0101] Optionally, when the insulation fault is troubleshooted and repaired and the vehicle is powered on again, the central control module 11 can also control all the relays connected to the insulation-related modules to close. For example, the central controller can close the relays corresponding to each energy storage module to achieve voltage self-balancing between the energy storage modules and the vehicle returns to normal.

[0102] The following uses a complete example to illustrate the process of handling insulation failure in a vehicle:

[0103] For example, if the concrete mixer truck includes three energy storage modules, after passing through the spraying facility, the whole vehicle reports an insulation fault, the high voltage is lost, and the concrete mixing tank stops rotating. The user triggers the insulation detection trigger module 10, and the central control module 11 controls the insulation resistance detection unit to detect the insulation resistance of each insulation-related module, and obtains the detection results of each insulation-related module. According to the detection result, it is determined that the insulation resistance of the high-voltage branch where the energy storage module 3 is located is low, then the energy storage module 3 is used as a faulty insulation module, and the central control module 11 disconnects the relay connected to the energy storage module 3. At the same time, the central control module 11 adjusts the maximum available power of the whole vehicle according to the current total power of the energy storage module 1 and the energy storage module 2, so that the whole vehicle can be normally on high voltage, the vehicle can run normally, and the concrete mixing tank can rotate normally, and the loss of concrete solidification in the mixing tank can be recovered. After the insulation fault of the high-voltage branch where the energy storage module 3 is located is checked and repaired, after the vehicle is powered on again, the relays connected to the energy storage modules are closed by the central control module 11, so that the voltage between the energy storage modules is self-balanced, and the vehicle returns to normal.

[0104] For example, if the vehicle contains four drive motor modules, the vehicle reports a low insulation resistance during driving in the rain, and the available power of the vehicle is very small, so it cannot drive normally. At this time, the user triggers the insulation detection trigger module 10, and the central control module 11 controls the insulation resistance detection unit to detect the insulation resistance of each insulation-related module, and obtains the detection results of each insulation-related module. According to the detection results, it is determined that the insulation resistance of the high-voltage branch where the drive motor module 2 is located is low. At this time, the central control module 11 disconnects the relay corresponding to the drive motor module 2, and the central control module can adjust the vehicle so that the drive motor module 3 and the drive motor module 4 work at the same time, so that the vehicle can drive normally. After the insulation fault of the high-voltage branch where the drive motor module 2 is located is checked and repaired, the vehicle is powered on again and the vehicle returns to normal.

[0105] Figure 6 A schematic diagram of a process for treating insulation failure provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the method is applied to the central control module in the above specific embodiment, and the method may include:

[0106] S101. Receive an insulation detection instruction sent by an insulation detection trigger module.

[0107] S102, based on the insulation detection instruction, controlling the insulation resistance test unit in the central power distribution module to perform insulation resistance test on each insulation-related module to obtain the detection result of each insulation-related module.

[0108] S103, determining the faulty insulation module according to the detection results of each insulation-related module.

[0109] S104: Perform insulation failure processing on the whole vehicle working data or each insulation-related module according to the faulty insulation module and other insulation-related modules of the same type as the faulty insulation module.

[0110] The specific implementation methods of the above steps have been described in detail in the above embodiments and will not be repeated here.

[0111] Optionally, the central power distribution module also includes relays corresponding to each insulation-related module, the first end of each relay is connected to the corresponding insulation-related module, the second end of each relay is connected to the central control module, and the third end of each relay is connected to the high-voltage circuit.

[0112] Optionally, the above S102, controlling the insulation resistance test unit in the central power distribution module to perform insulation resistance test on each insulation-related module based on the insulation detection instruction to obtain the detection result of each insulation-related module, may include:

[0113] Optionally, the central control module can control the opening and closing of each relay, and control the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each insulation-related module respectively, to obtain the detection results of each insulation-related module.

[0114] Optionally, if the number of insulation resistance test units is the same as the number of relays and corresponds one to one, the first end of each relay is connected to the insulation-related module through the insulation resistance test unit. The above-mentioned control of the opening and closing of each relay and the control of the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each insulation-related module respectively to obtain the detection results of each insulation-related module may include:

[0115] Optionally, the central control module can determine the current insulation-related module based on the insulation detection instruction, control the relay corresponding to the current insulation-related module to disconnect, and control the insulation resistance testing unit connected to the current insulation-related module to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0116] Optionally, if the number of the insulation resistance test unit is one, the insulation resistance test unit is connected to the third end of each relay. The above-mentioned control of the opening and closing of each relay and the control of the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each insulation-related module respectively to obtain the detection results of each insulation-related module may include:

[0117] Optionally, the central control module can determine the current insulation-related module based on the insulation detection instruction, and control the relay corresponding to the current insulation-related module to close, and control the relays corresponding to each insulation-related module except the current insulation-related module to disconnect, and control the insulation resistance testing unit to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

[0118] Optionally, the plurality of insulation-related modules include at least one energy storage module, at least one drive motor module and at least one high-voltage power module.

[0119] Determining the faulty insulation module according to the detection results of each insulation-related module in S103 may include:

[0120] Optionally, the central control module can determine the faulty insulation module based on the detection results of each energy storage module, the detection results of each drive motor module and the detection results of each high-voltage power module, and perform insulation failure processing on the vehicle working data or each insulation-related module based on the working data of the insulation-related modules of the same type as the faulty insulation module.

[0121] Optionally, in the above S104, performing insulation failure processing on the whole vehicle working data or each insulation-related module according to the faulty insulation module and other insulation-related modules of the same type as the faulty insulation module may include:

[0122] If the faulty insulation module is an energy storage module, the relay corresponding to the faulty insulation module is disconnected, and the current power of each energy storage module except the faulty insulation module is obtained, and the current total power is determined according to the current power of each energy storage module, and the maximum power of the whole vehicle when working is adjusted to the current total power.

[0123] Optionally, in the above S104, performing insulation failure processing on the whole vehicle working data or each insulation-related module according to the faulty insulation module and other insulation-related modules of the same type as the faulty insulation module may include:

[0124] If the faulty insulation module is a drive motor module, disconnect the relay corresponding to the faulty insulation module, obtain the current working data of each drive motor module except the faulty insulation module, determine the current total working data based on each current working data, and adjust the maximum value of the working data of the drive motor of the whole vehicle to the current total working data. The current working data includes: torque and power.

[0125] Optionally, in the above S104, performing insulation failure processing on the whole vehicle working data or each insulation-related module according to the faulty insulation module and other insulation-related modules of the same type as the faulty insulation module may include:

[0126] If the faulty insulation module is a high-voltage power module and the component type of the high-voltage power module is a high-risk component, the relay connected to the faulty insulation module will be disconnected; if the component type of the high-voltage power module is not a high-risk component, the relay connected to the faulty insulation module will remain closed.

[0127] An embodiment of the present application also provides an electric vehicle, which may include the insulation failure processing system in the aforementioned specific embodiment, so that the electric vehicle can still operate normally when the insulation fails.

[0128] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the method embodiment, and will not be repeated in this application. In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0129] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), disk or optical disk and other media that can store program code.

[0130] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A system for processing insulation failure, characterized in that: include: Insulation detection trigger module, central control module, multiple insulation related modules and central power distribution module; The central control module is respectively connected to the central power distribution module, the insulation detection trigger module and each of the insulation related modules; The central power distribution module is connected to each insulation-related module respectively, and the central power distribution module includes an insulation resistance test unit; The insulation detection trigger module is used to send an insulation detection instruction to the central control module; The central control module controls the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each of the insulation-related modules based on the insulation detection instruction, and obtains the detection results of each of the insulation-related modules; The central control module is also used to determine the faulty insulation module among the multiple insulation-related modules according to the detection results of each of the insulation-related modules, and perform insulation failure processing on the vehicle working data or each of the insulation-related modules according to the working data of the insulation-related modules of the same type as the faulty insulation module.

2. The insulation failure processing system according to claim 1, characterized in that: The central power distribution module also includes relays corresponding to each of the insulation-related modules; The first end of each relay is connected to the corresponding insulation-related module, the second end of each relay is connected to the central control module, and the third end of each relay is connected to the high-voltage circuit; The central control module is specifically used to control the opening and closing of each of the relays, and to control the insulation resistance test unit in the central power distribution module to perform insulation resistance detection on each of the insulation-related modules respectively, to obtain the detection results of each of the insulation-related modules.

3. The insulation failure processing system according to claim 2, characterized in that: The number of the insulation resistance test units is the same as the number of the relays and corresponds one to one; The first end of each of the relays is connected to the insulation-related module through the insulation resistance test unit; The central control module is specifically used to determine the current insulation-related module, control the relay corresponding to the current insulation-related module to disconnect, and control the insulation resistance test unit connected to the current insulation-related module to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

4. The insulation failure processing system according to claim 2, characterized in that: The number of the insulation resistance test unit is one; The insulation resistance testing unit is connected to the third end of each of the relays; The central control module is specifically used to determine the current insulation-related module, and control the relay corresponding to the current insulation-related module to close, and control the relays corresponding to each insulation-related module except the current insulation-related module to disconnect, and control the insulation resistance testing unit to perform insulation resistance detection on the current insulation-related module to obtain the detection result of the current insulation-related module.

5. The insulation failure processing system according to claim 1, characterized in that: The plurality of insulation-related modules include at least one energy storage module, at least one drive motor module and at least one high-voltage power module.

6. The insulation failure processing system according to claim 5, characterized in that: The central control module is specifically used to determine the faulty insulation module based on the detection results of each energy storage module, the detection results of each drive motor module and the detection results of each high-voltage power module, and to perform insulation failure processing on the vehicle working data or each of the insulation-related modules based on the working data of the insulation-related modules of the same type as the faulty insulation module.

7. The insulation failure processing system according to claim 6, characterized in that: The central control module is specifically used for: If the faulty insulation module is an energy storage module, the relay corresponding to the faulty insulation module is disconnected, and the current power of each energy storage module except the faulty insulation module is obtained, and the current total power is determined according to the current power of each energy storage module, and the maximum power of the whole vehicle when working is adjusted to the current total power.

8. The insulation failure processing system according to claim 6, characterized in that: The central control module is specifically used for: If the faulty insulation module is a drive motor module, the relay corresponding to the faulty insulation module is disconnected, and the current working data of each drive motor module except the faulty insulation module is obtained, and the current total working data is determined based on each current working data, and the maximum value of the working data of the drive motor of the whole vehicle is adjusted to the current total working data, and the current working data includes: torque and power.

9. The insulation failure processing system according to claim 6, characterized in that: The central control module is specifically used for: If the faulty insulation module is a high-voltage power module, and the component type of the high-voltage power module is a high-risk component, disconnecting the relay connected to the faulty insulation module; If the component type of the high-voltage power module is a non-high-risk component, the relay connected to the fault isolation module is kept closed.

10. A method for treating insulation failure, characterized in that: Applied to the central control module according to any one of claims 1 to 9, the method comprises: Receiving the insulation detection instruction sent by the insulation detection trigger module; Based on the insulation detection instruction, the insulation resistance test unit in the central power distribution module is controlled to perform insulation resistance detection on each insulation-related module to obtain the detection result of each insulation-related module; Determine the faulty insulation module according to the detection results of each of the insulation-related modules; According to the faulty insulation module and insulation-related modules of the same type as the faulty insulation module, insulation failure processing is performed on the whole vehicle working data or each of the insulation-related modules.

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