High-pressure collision safety system and control method thereof

Abstract

The invention discloses a high-pressure collision safety system and a control method thereof, and belongs to the technical field of vehicles. The safety system includes: a collision damage circuit including a detection lead through which a current flows, the detection lead being mounted on a side wall of the high-voltage connector, the detection lead being disconnected to generate a collision signal when a collision occurs and the high-voltage connector is damaged; and the control module is used for receiving the collision signal and controlling the high-voltage system to be powered off and / or forbidding the high-voltage system to be powered on. When collision occurs, the shell of the high-voltage connector is broken and the detection lead is broken, so that the on-off condition of the detection lead can be obtained as a collision signal, and the high-voltage system power-off operation can be performed when the shell of the high-voltage connector is broken. The detection lead is arranged on the high-voltage connector, so that damage detection can be performed on relatively dangerous parts in a more targeted manner under a collision condition, and electric shock safety accidents and short-circuit fire risks caused by damage of the high-voltage connector are avoided.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a high-voltage collision safety system and a control method thereof. Background Art

[0002] When an electric vehicle collides, the insulation may fail due to damage to the outer shell of the high-voltage components, resulting in leakage of live parts or overlap of positive and negative circuits, which may cause the risk of electric shock to personnel, and even short circuit failures may cause fire accidents. At present, electric vehicles generally adopt a control strategy of powering off the high-voltage system after a collision to avoid the above risks. The triggering conditions of this control strategy are consistent with the triggering conditions of the airbag. The collision fault is detected by the collision sensor, and then the high-voltage system is powered off. Since the principle of the collision sensor is to detect the impact acceleration at the moment of collision to determine whether a collision has occurred and the extent of the collision, in a considerable number of collision accidents, although the outer shell of the high-voltage component has been damaged, it has not reached the collision fault judgment threshold set by the vehicle. Therefore, the collision power-off protection mechanism is not triggered, and the risk of electric shock and short circuit fire cannot be avoided. Summary of the invention

[0003] The purpose of the present invention is to provide a high-voltage collision safety system and a control method thereof to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] A technical solution adopted to solve the above technical problems provides a high-voltage collision safety system, which is applied to a high-voltage system with a high-voltage connector, and is characterized in that it includes: a collision damaged circuit, the collision damaged circuit includes a detection wire with current flowing, the detection wire is installed on the side wall of the high-voltage connector, and the collision damaged circuit is configured so that when a collision occurs and the high-voltage connector is damaged, the detection wire is disconnected to generate a collision signal; a control module, which is used to receive the collision signal and control the high-voltage system to power off and / or prohibit the high-voltage system from powering on.

[0005] This technical solution has at least the following beneficial effects: the detection wire is installed on the side wall of the high-voltage connector. When a collision occurs, the shell of the high-voltage connector is broken, causing the detection wire to be disconnected, so that the on-off status of the detection wire can be obtained as a collision signal, and the high-voltage system can be powered off when the shell of the high-voltage connector is broken, so that when a collision occurs and the high-voltage connector is damaged, the protection mechanism can be triggered to power off the high-voltage system to avoid the risk of electric shock and short-circuit fire. And because the shells of each high-voltage assembly are basically cast aluminum shells with high mechanical strength, they will basically not be seriously damaged in the event of a collision and cause a high-voltage short-circuit failure, while the high-voltage connector is mainly a plastic shell, which is easily damaged in the event of a collision and causes a short circuit. Therefore, by setting the detection wire on the high-voltage connector, in the event of a collision, more targeted damage detection can be performed on the more dangerous parts to avoid electric shock safety accidents and short-circuit fire risks caused by damage to the high-voltage connector.

[0006] Optionally, the high-voltage connector is provided with a positive conductor and a negative conductor arranged in parallel on the same distribution plane, the side wall of the high-voltage connector parallel to the distribution plane is used as a collision surface, and the detection wire is installed on the collision surface of the high-voltage connector. When the high-voltage connector is broken and damaged by the force in the parallel direction of the positive conductor and the negative conductor, it is easy to cause the positive conductor and the negative conductor to come into close contact with each other and cause a short circuit. At this time, the collision surface is more likely to be damaged than other surfaces. Therefore, by setting the detection wire on the collision surface, it can be more accurately determined whether the current collision is likely to cause problems such as short circuits.

[0007] Optionally, the collision damage circuit is provided with at least two detection wires in parallel, all the detection wires arranged in parallel are arranged side by side on the same side wall of the high-voltage connector, and corresponding ends of all the detection wires arranged in parallel are connected to a common low-voltage pin. The collision damage range can be determined according to the number of detection wires connected and disconnected.

[0008] Optionally, the control module is used to receive an electrical signal of the collision damaged circuit, the electrical signal includes the on-off condition and resistance value between the two low-voltage pins at both ends of the detection wire, and the collision signal is the on-off condition disconnection or the resistance value change. In addition to monitoring the on-off condition of the detection wire, the resistance value between the two low-voltage pins at both ends of the detection circuit can also be monitored, so that the number of detection wire breaks can be judged by the change in resistance value, and the damage range can be further determined.

[0009] Optionally, two collision-damaged circuits are arranged on the same side wall of the high-voltage connector housing, and the detection wires of the two collision-damaged circuits are arranged on the inner side and the outer side of the high-voltage connector housing, respectively. The degree of collision damage can be determined according to the states of the detection wires on the inner side and the outer side of the high-voltage connector housing.

[0010] Optionally, the safety system further includes a reminder module, the reminder module is configured to generate an inner collision signal when the inner detection wire is disconnected, and to generate an outer collision signal when the outer detection wire is disconnected, and the control module is further configured to control the reminder module to remind when only the outer collision signal is received. When the control module only receives the outer collision signal but not the inner collision signal, it means that only the outer detection wire is disconnected, while the inner detection wire is not disconnected, so that it can be judged that the degree of collision is relatively light and the interior of the high-voltage connector has not been damaged for the time being, and the driver can be reminded through the reminder device to allow the driver to check the vehicle in time.

[0011] Optionally, the detection wire is integrated on the high-voltage connector housing. This can enhance the correlation between the detection wire and the high-voltage connector housing. When the high-voltage connector housing is damaged, the damage to the housing can be accurately sensed by the on-off of the detection wire, thereby controlling the power-off of the high-voltage system to prevent short circuits and fires.

[0012] A vehicle comprises a high-voltage collision safety system as described in any one of the above items.

[0013] A high-voltage collision safety system control method is used to control the high-voltage system of a vehicle, the high-voltage system includes any of the high-voltage collision safety systems described above, the high-voltage connector is connected to a high-voltage assembly controller, the control module is integrated in the high-voltage assembly controller, and the control method includes: turning on the collision damaged circuit, the high-voltage assembly controller obtains the collision signal of the collision damaged circuit in real time; the high-voltage assembly controller reports the collision signal through a bus, the vehicle controller receives the collision signal, and controls the high-voltage system to power off and / or prohibits the high-voltage system from powering on. It can facilitate the safe management of multiple high-voltage connectors, accurately determine which high-voltage connector has a fault, and achieve accurate fault location; it can perform fault classification processing according to the high-voltage connector and location where the fault occurs; and avoid false fault reports that may occur when external circuits are connected.

[0014] Optionally, the vehicle controller receives the collision signal and controls the high-voltage system to be powered off, including: obtaining the driving speed of the vehicle; when the driving speed is lower than a first threshold, controlling the high-voltage system to be powered off and / or prohibiting the high-voltage system from being powered on. The high-voltage system is allowed to be powered off only when the vehicle speed is lower than a preset first threshold, which can better ensure the safety of vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic structural diagram of a straight high-voltage connector according to an embodiment of the present invention;

[0017] Figure 2 Schematic diagram of the structure of an L-shaped high-voltage connector in an embodiment of the present invention;

[0018] Figure 3 It is a structural schematic diagram of a plurality of detection wires connected in parallel in an embodiment of the present invention;

[0019] Figure 4 A schematic structural diagram of a high-voltage collision safety system according to an embodiment of the present invention;

[0020] Figure 5 A schematic flow chart of a high-voltage collision safety system control method according to an embodiment of the present invention;

[0021] Figure 6 It is a schematic diagram of a logic block diagram of a high-voltage collision safety system control method according to an embodiment of the present invention.

[0022] 11. High-voltage connector; 12. Positive conductor; 13. Negative conductor; 14. Collision surface; 15. Low-voltage pin; 16. Detection wire. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] like Figure 1-4 As shown, a high-voltage collision safety system is applied to a high-voltage system with a high-voltage connector 11, and the high-voltage system is used in a vehicle. The high-voltage connector 11 carries high voltage and high current, and includes a high-voltage shielded wire, an inner shielding ring, an outer shielding ring, a terminal, a seal, and a housing, etc. A conductor is arranged inside the high-voltage shielded wire.

[0026] The safety system includes: a collision damaged circuit and a control module. The collision damaged circuit includes a detection wire 16. Low-voltage pins 15 are provided at both ends of the detection wire 16. The low-voltage pins 15 at both ends form a loop connection with the low-voltage power supply and the control switch. By closing the control switch, the low-voltage power supply can allow current to flow through the detection wire 16. Among them, the detection wire 16 is made of a material that is easy to break after being subjected to force; or the detection wire 16 is made of conventional metal wire material, but a plurality of scratches or slide grooves are arranged in parallel on the detection wire 16. After being subjected to external force, the detection wire 16 is easy to break and disconnect at the position of the scratches or slide grooves. The detection wire 16 is installed on the side wall of the high-voltage connector 11 housing.

[0027] The high-voltage connector 11 is connected to a high-voltage assembly controller, and a control module is integrated in the high-voltage assembly controller. The control module is electrically connected to the collision damaged circuit, so that the control module can detect and receive electrical signals in the collision damaged circuit, which include the on-off condition and resistance value between the low-voltage pins 15 at both ends. When a vehicle collides, the shell of the high-voltage connector 11 is damaged, and the detection wire 16 in the shell of the high-voltage connector 11 is broken at the same time. After the detection wire 16 is disconnected, the collision damaged circuit generates a collision signal, and the collision signal specifically refers to the disconnection of the on-off condition between the low-voltage pins 15 at both ends or the change in the resistance value between the low-voltage pins 15 at both ends. When the control module receives the collision signal, it controls the high-voltage system of the vehicle to power off and prohibits the high-voltage system from powering on, so as to prevent a short circuit after the collision and cause a fire, etc., to ensure the safety of the vehicle.

[0028] The high-voltage connector 11 includes a positive conductor 12 and a negative conductor 12, and the positive conductor 12 and the negative conductor 12 are arranged side by side on the same distribution plane, and the side wall of the high-voltage connector 11 shell parallel to or nearly parallel to the distribution plane is set as the collision surface 14. Generally, the high-voltage connector 11 shell is set with two collision surfaces 14 arranged opposite to each other, and a collision damaged circuit is independently arranged on each of the two collision surfaces 14, and the control module obtains the electrical signals of the two collision damaged circuits respectively. If the vehicle collides and is subjected to force on the high-voltage connector 11, and the force direction is in the parallel direction of the positive conductor 12 and the negative conductor 12, the positive conductor 12 and the negative conductor 12 on the high-voltage connector 11 are easy to approach each other and cause a short circuit. At this time, one side of the side wall of the high-voltage connector 11 shell parallel to or nearly parallel to the distribution plane will inevitably be damaged. Therefore, by setting the collision damaged circuit on the collision surface 14, it is easier and more accurate to judge whether the collision is prone to short circuit fire and the like. In other embodiments, the collision damaged circuits on the two collision surfaces 14 on the same high-voltage connector 11 can be arranged in series, and when any one or two collision damaged circuits generate a collision signal, the control module can detect that the high-voltage connector 11 has a safety risk.

[0029] Optionally, in a collision damaged circuit, multiple detection wires 16, such as two, three, four, five, six, etc., can be arranged in parallel, and the number and length of the detection wires 16 can be set according to the specific size of the high-voltage connector 11. Multiple detection wires 16 are roughly distributed on a collision surface 14 in parallel. When a vehicle collides, the collision surface 14 of the high-voltage connector 11 is damaged and the detection wires 16 therein are partially or completely broken, which will cause the total resistance between the two low-voltage pins 15 in the collision damaged circuit to change. The control module can calculate the number of on-off detection wires 16 by monitoring the value change of the total resistance, thereby determining the damage range of the high-voltage connector 11 on the collision surface 14.

[0030] In other embodiments, the resistances at both ends of multiple detection wires 16 in the same collision damaged circuit can be different, and the specific damaged position and range can be determined by the specific resistance change value between the low-voltage pins 15 at both ends. Specifically, for example, five detection wires 16 are provided in a collision damaged circuit, and the five detection wires 16 are arranged in parallel with each other, and the five detection wires 16 are evenly distributed side by side on a collision surface 14 of the high-voltage connector 11. The resistance values ​​of the five detection wires 16 are 1 ohm, 1.1 ohm, 1.3 ohm, 1.6 ohm and 2 ohm in the parallel direction. When it is monitored that the total resistance value between the low-voltage pins 15 at both ends of the collision damaged circuit changes to 1 ohm, it is considered that the first detection wire 16 in the parallel direction has not been broken, while the other four detection wires 16 have been broken. Therefore, the position and range of the break can be determined more accurately, and the precise damaged position and range can be obtained, which can not only accurately troubleshoot the fault problem, but also set up fault classification processing, etc.

[0031] Optionally, the safety system also includes a reminder module. A collision damaged circuit is independently provided on the inner and outer sides of the same collision surface 14 of the side wall of the high-voltage connector 11 shell, that is, at this time, one high-voltage connector 11 shell is correspondingly provided with four independent collision damaged circuits, and the control module monitors the electrical signals of the four independent collision damaged circuits respectively. When the detection wire 16 on the outer side is disconnected, an outer collision signal is generated, and when the detection wire 16 on the inner side is disconnected, an inner collision signal is generated.

[0032] The two collision surfaces 14 of the high-voltage connector 11 are marked as surface A and surface B respectively. Assume that when a collision accident occurs to the whole vehicle, one of the collision surfaces 14 of the motor high-voltage connector 11, such as surface A, the detection wire 16 in the collision damaged circuit on the outside is broken, while the collision damaged circuit on the inside is not broken, that is, when the control module in the motor controller receives the collision signal on the outside of surface A but does not receive the collision signal on the inside of surface A, it is considered that the damage degree of the high-voltage connector 11 is not serious, and the control module controls the reminder module to perform a reminder operation, such as prompting on the instrument that "Surface A of the motor high-voltage connector 11 is slightly damaged, please contact the 4S store for inspection". If the detection wire 16 in the collision damaged circuit on the outside of one of the collision surfaces 14 of the high-voltage connector 11 is broken, and the collision damaged circuit on the inside is also broken, that is, the control module receives both the outer collision signal and the inner collision signal, then it is considered that the damage to the high-voltage connector 11 is serious and may endanger the safety of the vehicle. Therefore, it is necessary to control the high-voltage system to power off and prohibit the high-voltage system from powering on, so as to avoid electric shock safety accidents and short-circuit fire risks caused by the breakage of the high-voltage connector 11 due to the collision of the entire vehicle.

[0033] Among them, the side wall of the high-voltage connector 11 shell can be set as an integrated square tube structure, and the detection wire 16 can be directly integrated into the collision surface 14 of the square tube structure, and extend out of the high-voltage connector 11 shell through two low-voltage pins 15 to connect with other parts. In other embodiments, the detection wire 16 can also independently form a flat block structure, and the flat block structure is close to the collision surface 14 of the high-voltage connector 11. In other embodiments, the collision surface 14 of the high-voltage connector 11 can also be determined by collision simulation analysis, that is, the position and surrounding environment of the high-voltage connector 11 in the whole vehicle are first determined, and the specific area where the collision may occur on the high-voltage connector 11 is obtained through simulation analysis to set the detection wire 16. In other embodiments, the specific area where the collision may occur on the high-voltage connector 11 can also be determined by simulation analysis, and the collision surface 14 within the range of this area is set with the detection wire 16.

[0034] The present invention sets a collision damage circuit and a control module on the high-voltage connector 11 with the risk of collision damage. When the vehicle collides, the collision damage circuit detects whether the collision surface 14 of the high-voltage connector 11 is damaged and the scope and degree of the damage. When the collision is judged to be relatively minor, the control module controls the reminder device to remind maintenance. When the collision is judged to be relatively serious, the control module controls the high-voltage system to power off, thereby avoiding electric shock safety accidents and short-circuit fire risks caused by the breakage of the high-voltage connector 11 due to the collision of the whole vehicle.

[0035] An embodiment of the present invention further provides a vehicle, comprising a high-voltage collision safety system as described in any one of the above embodiments.

[0036] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0037] Reference Figure 5-6 The embodiment of the present invention further provides a high-voltage collision safety system control method for controlling the high-voltage system of the above-mentioned vehicle, the high-voltage system includes the above-mentioned high-voltage collision safety system, the high-voltage connector 11 is connected to the high-voltage assembly controller, and the control module is integrated in the high-voltage assembly controller. For example, the motor controller of the motor is integrated with a control module, and the control module corresponds to obtaining a signal of a collision damaged circuit set on the high-voltage connector 11 of the motor. Different high-voltage connectors 11 can correspond to a different control module, and the control method includes:

[0038] S100: The collision damaged circuit is turned on, and the high-voltage assembly controller obtains the collision signal of the collision damaged circuit in real time.

[0039] Specifically, the low-voltage system is powered on to conduct the collision damaged circuit, and the status of the collision damaged circuit is monitored by the control module in the high-voltage assembly controller. When the vehicle collides, if the collision surface 14 of the high-voltage connector 11 is partially or completely damaged, part of the detection wires 16 on the collision surface 14 will break, and the control module will receive a collision signal that the resistance of the collision damaged circuit has changed or the on-off condition has been disconnected.

[0040] S200: The high-voltage assembly controller reports a collision signal through the bus, and the vehicle controller receives the collision signal and controls the high-voltage system to power off and / or prohibits the high-voltage system from powering on.

[0041] Specifically, after receiving the collision signal, the control module in the high-voltage assembly controller reports the electrical signal status of each collision-damaged circuit through bus messages and other means, and the vehicle controller (VCU) receives the electrical signal and processes it uniformly. In a vehicle collision accident, if the vehicle controller receives an inner collision signal of any collision-damaged circuit on the inner side of any high-voltage connector 11, the high-voltage system is controlled to be powered off and the high-voltage system is prohibited from being powered on to ensure the safety of the people in the car. It should be noted that the high-voltage system can be powered off by directly or indirectly cutting off the high-voltage relay. At this time, the reminder device can display information such as "the high-voltage connector 11 is seriously damaged and the whole vehicle cannot be powered on at high voltage" on the instrument. If the vehicle controller only receives one or more outer collision signals, the high-voltage connector 11 information corresponding to the one or more outer collision signals is used as a reminder message, and the reminder device is used to display information such as "the high-voltage connector 11 is slightly damaged, please contact the 4S store for inspection" on the instrument to remind the people in the car to check in time. In other embodiments, the battery controller (BMS) can receive the collision signal and control the high-voltage system to power off and / or prohibit the high-voltage system from being powered on.

[0042] It should be noted that when the vehicle is started, the vehicle is powered on at low voltage, and after the collision damaged circuit is turned on, if the vehicle controller receives a collision signal, high voltage power-on is prohibited, and the reminder device displays information such as "high voltage connector 11 is seriously damaged, high voltage power-on is prohibited for the vehicle" on the instrument. If the vehicle controller does not receive a collision signal, high voltage power-on is allowed, and the electrical signal of the collision damaged circuit is monitored in real time.

[0043] In this embodiment, when acquiring electrical signals from the collision damaged circuit on the same collision surface 14 of each high-voltage connector 11, it can be first determined whether an outer collision signal is received. If an outer collision signal is not received, an inner collision signal will generally not be received. At this time, it can be determined that the high-voltage connector 11 at this time has not been damaged in a manner that requires attention. If an outer collision signal is received, it is further determined whether an inner collision signal is received. If an inner collision signal is received, that is, both the inside and the outside of the collision surface 14 are damaged at this time, the high-voltage connector 11 has a safety risk, and it is necessary to prohibit the high-voltage system from being powered on when starting the vehicle or to control the high-voltage system to be powered off during driving to avoid electric shock safety accidents and short-circuit fire risks caused by damage to the high-voltage connector 11. If an inner collision signal is not received, that is, the collision surface 14 is only damaged on the outside, and the high-voltage connector 11 is slightly damaged, the fault information is displayed on the instrument through the reminder device to remind the driver to check in time.

[0044] In another embodiment, when acquiring electrical signals from the collision damaged circuit on the same collision surface 14 of each high-voltage connector 11, it can be determined whether an outer collision signal and an inner collision signal are received at the same time. If both an outer collision signal and an inner collision signal are received, the inner and outer parts of the collision surface 14 are damaged, and the high-voltage connector 11 has safety risks. It is necessary to prohibit the high-voltage system from being powered on when starting the vehicle or to control the high-voltage system to be powered off during driving to avoid electric shock safety accidents and short-circuit fire risks caused by damage to the high-voltage connector 11. If only an outer collision signal is received but no inner collision signal is received, the collision surface 14 is only damaged on the outside, and the high-voltage connector 11 is slightly damaged. The fault information is displayed on the instrument through the reminder device to remind the driver to check in time. It should be noted that if the inner collision signal is received but the outer collision signal is not received, it is necessary to remind the instrument that "the high-voltage collision safety system is abnormal, please contact the 4S store for inspection" and other information.

[0045] Optionally, after the vehicle controller receives any collision signal, the current speed of the vehicle is first obtained. If the speed is lower than the preset first threshold, the high-voltage system is controlled to be powered off and the high-voltage system is prohibited from being powered on. If the current speed of the vehicle is higher than or equal to the preset first threshold, the driver can be reminded to slow down by means of instrument display, etc. When the current speed of the vehicle is lower than the preset first threshold, the high-voltage system is controlled to be powered off and the high-voltage system is prohibited from being powered on. This ensures the safety of the high-voltage system being powered off.

[0046] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0047] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0048] In some embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the system embodiments described above are only schematic. For example, the division of the modules can be 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 interfaces, modules or indirect coupling or communication connection of modules, which can be electrical or other forms.

[0049] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0050] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0051] If the integrated module is implemented in the form of a software function module 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 invention, in essence, or the part that contributes to the prior art, or all or 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 a number of instructions for 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 invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-voltage collision safety system, applied to a high-voltage system with a high-voltage connector, characterized in that: include: A collision damaged circuit, the collision damaged circuit comprising a detection wire, the detection wire being installed on a side wall of the high voltage connector, the collision damaged circuit being configured to disconnect the conductive detection wire when a collision occurs and the high voltage connector is damaged, thereby generating a collision signal; The control module is used to receive the collision signal and control the high voltage system to power off and / or prohibit the high voltage system from powering on.

2. A high-voltage collision safety system according to claim 1, characterized in that: The high voltage connector is provided with a positive conductor and a negative conductor arranged in parallel on the same distribution plane. The side wall of the high voltage connector parallel to the distribution plane serves as a collision surface, and the detection wire is installed on the collision surface of the high voltage connector.

3. A high-voltage collision safety system according to claim 1, characterized in that: The collision damaged circuit has at least two detection wires arranged in parallel, all the detection wires arranged in parallel are distributed side by side on the same side wall of the high-voltage connector, and corresponding ends of all the detection wires arranged in parallel are connected to a common low-voltage pin.

4. A high-voltage collision safety system according to claim 3, characterized in that: The control module is used to receive the electrical signal of the collision damaged circuit, and the electrical signal includes the continuity and resistance value between the two low-voltage pins at both ends of the detection wire. The collision signal is that the continuity is disconnected or the resistance value changes.

5. A high-voltage collision safety system according to claim 1, characterized in that: Two collision-damaged circuits are arranged on the same side wall of the high-voltage connector housing, and detection wires of the two collision-damaged circuits are arranged on the inner side and the outer side of the high-voltage connector housing, respectively.

6. A high-voltage collision safety system according to claim 5, characterized in that: The safety system also includes a reminder module, which is configured to generate an inner collision signal when the detection wire on the inner side is disconnected, and to generate an outer collision signal when the detection wire on the outer side is disconnected. The control module is also used to control the reminder module to give a reminder when only the outer collision signal is received.

7. A high-voltage collision safety system according to claim 1, characterized in that: The detection wire is integrated on the high voltage connector outer shell.

8. A vehicle, characterized in that: A high-voltage collision safety system comprising any one of claims 1 to 7.

9. A high-voltage collision safety system control method, characterized in that: A high-voltage system for controlling a vehicle, the high-voltage system comprising a high-voltage collision safety system as claimed in any one of claims 1 to 7, the high-voltage connector being connected to a high-voltage assembly controller, the control module being integrated in the high-voltage assembly controller, and the control method comprising: The collision damaged circuit is turned on, and the high-voltage assembly controller obtains a collision signal of the collision damaged circuit in real time; The high-voltage assembly controller reports the collision signal through a bus, and the vehicle controller receives the collision signal and controls the high-voltage system to power off and / or prohibits the high-voltage system from powering on.

10. A high-voltage collision safety system control method according to claim 9, characterized in that: The vehicle controller receives the collision signal and controls the high voltage system to power off, including: Obtaining the driving speed of the vehicle; When the driving speed is lower than a first threshold, the high voltage system is controlled to be powered off and / or the high voltage system is prohibited to be powered on.

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