Engine cover lock device, vehicle and temperature control method of engine cover lock device

Abstract

The invention discloses an engine hood lock device, a vehicle and a temperature control method of the engine hood lock device. The engine hood lock device comprises a lock body assembly, a heating device and a temperature sensor. The lock body assembly is configured to be connected with an engine cover and a vehicle body. The heating device is in contact with the lock body assembly; the temperature sensor is installed on the lock body assembly and connected with the heating device, and when the temperature sensor detects that the temperature of the lock body assembly is lower than a first preset temperature, the heating device is started; when the temperature sensor detects that the temperature of the lock body assembly is higher than the second preset temperature, the heating device stops, and the first preset temperature is lower than the second preset temperature. According to the engine cover lock device, the heating device can heat the lock body assembly, the temperature of the lock body assembly is increased, condensation at the gap position of the lock body assembly is prevented, and the problem that the lock body assembly cannot be unlocked is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a hood lock device, a vehicle, and a temperature control method of the hood lock device. Background Art

[0002] As an important means of transportation, cars face severe challenges in the mechanical locking mechanism that locks the car hood and body when used in extremely low temperature environments.

[0003] When the car is in a low-temperature environment, water vapor in the air easily condenses in the gaps of the mechanical lock mechanism, which hinders the unlocking movement of the mechanical lock mechanism and causes the mechanical lock mechanism of the hood to be unable to unlock normally, causing great inconvenience to the car owner. Summary of the Invention

[0004] In view of this, the present invention provides a hood lock device with a heating function to solve the problem that the hood lock cannot be unlocked due to condensation.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A hood lock device comprises: a lock body assembly, the lock body assembly being configured to connect the hood and the vehicle body; a heating device, the heating device being in contact with the lock body assembly; a temperature sensor, the temperature sensor being mounted on the lock body assembly and connected to the heating device, and the heating device being started when the temperature sensor detects that the temperature of the lock body assembly is lower than a first preset temperature, and being stopped when the temperature sensor detects that the temperature of the lock body assembly is higher than a second preset temperature, and the first preset temperature is lower than the second preset temperature.

[0007] Preferably, in the above-mentioned hood lock device, the lock body assembly includes an electric unlocking mechanism, and the heating device is provided in the electric unlocking mechanism;

[0008] Alternatively, the lock body assembly includes a manual unlocking mechanism, and the heating device is provided in the manual unlocking mechanism;

[0009] Alternatively, the lock body assembly includes an electric unlocking mechanism and a manual unlocking mechanism, and the heating device is provided on at least one of the electric unlocking mechanism and the manual unlocking mechanism.

[0010] Preferably, in the above-mentioned hood lock device, the heating device is an electromagnetic induction heating device.

[0011] Preferably, in the above-mentioned hood lock device, the heating device includes: a heating module, the heating module includes an electromagnetic induction coil and a control circuit, the electromagnetic induction coil and the control circuit form a loop with the power supply device; a panel, the panel and the heating module are on one side along the axial direction of the heating module, the panel is a metal panel, and the panel is in contact with the lock body assembly; a shell, the shell is located on the side of the heating module away from the panel, the shell has a receiving groove for accommodating the heating module, the shell and the panel are arranged along the axial direction of the heating module and are connected, and the heating module is limited to the receiving groove between the connected shell and the panel.

[0012] A vehicle comprises a vehicle body, a hood and a hood locking device, wherein the hood locking device is any one of the hood locking devices described above.

[0013] Preferably, the above-mentioned vehicle further includes: a hood unlock switch and a control unit; the hood unlock switch is connected to the control unit, the control unit is connected to the temperature sensor of the hood lock device, and the control unit is connected to the heating device of the hood lock device.

[0014] A temperature control method for a vehicle hood lock device, applied to the vehicle described above, comprises:

[0015] Determining that the vehicle is in a start state and the vehicle speed is greater than a preset value, if the temperature of the lock body assembly is lower than a first preset temperature, the heating module is powered on and the electromagnetic induction coil of the heating module is in a first power state until the temperature of the lock body assembly reaches a second preset temperature, at which point the heating module is powered off;

[0016] Determining that the vehicle is in a start state and the vehicle speed is greater than a preset value, if the temperature of the lock body assembly is less than a second preset temperature and not less than the first preset temperature, the heating module maintains the current state;

[0017] Determining that the vehicle is in the ignition-off state and the hood unlock switch is triggered, if the temperature of the lock assembly is lower than a first preset temperature, the heating module is powered on and the electromagnetic induction coil of the heating module is in a first power state until the temperature of the lock assembly reaches a second preset temperature, at which point the heating module is powered off and the lock assembly is unlocked;

[0018] It is determined that the vehicle is in an ignition-off state and the hood unlocking switch is triggered. If the temperature of the lock body assembly is not less than a first preset temperature, the lock body assembly is unlocked.

[0019] Preferably, in the above-mentioned temperature control method of the vehicle hood lock device:

[0020] The method for triggering the hood unlock switch is: the vehicle detects that the vehicle key is within a preset distance and a mechanical switch on the vehicle body is triggered;

[0021] Alternatively, the hood unlocking switch is triggered in the following manner: the vehicle detects that the vehicle key is within a preset distance, and the hood unlocking button switch of the vehicle key is triggered, and the triggering duration is not less than a preset duration;

[0022] Alternatively, the hood unlocking switch is triggered in the following manner: the vehicle detects that the vehicle key is within a preset distance, and an operation switch on the vehicle control screen is triggered.

[0023] Preferably, in the temperature control method of the vehicle hood lock device, if the temperature of the lock body assembly is lower than the first preset temperature, the heating module is powered on and the electromagnetic induction coil of the heating module is in the first power state, and the heating module is powered off until the temperature of the lock body assembly reaches the second preset temperature, further comprising:

[0024] If the temperature of the lock body assembly continues to drop or the temperature of the lock body assembly remains unchanged, the electromagnetic induction coil of the heating module is in the second power state;

[0025] The current value corresponding to the second power is greater than the current value corresponding to the first power.

[0026] Preferably, in the above-mentioned temperature control method of the hood lock device of a vehicle, the frequency of the current corresponding to the second power is greater than the frequency of the current corresponding to the first power.

[0027] An embodiment of the present invention discloses a hood lock device, including a lock body assembly and a heating device in contact with the lock body assembly. The heating device can heat the lock body assembly of the hood lock device, increase the temperature of the lock body assembly, prevent condensation at the gap position of the lock body assembly, and avoid the problem of the lock body assembly being unable to be unlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic structural diagram of the hood lock device disclosed in an embodiment of the present invention;

[0030] Figure 2 A schematic structural diagram of a heating device of a hood lock device disclosed in an embodiment of the present invention;

[0031] Figure 3 This is an exploded view of the heating device of the hood lock device disclosed in an embodiment of the present invention;

[0032] Figure 4 A rear view of the hood lock device disclosed in an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of a partial structure of a vehicle disclosed in an embodiment of the present invention;

[0034] Figure 6 A control relationship diagram of a vehicle disclosed in an embodiment of the present invention;

[0035] Figure 7 This is a temperature control logic diagram of the vehicle hood lock device disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0038] As an important means of transportation, cars face severe challenges in the mechanical locking mechanism that locks the car hood and body when used in extremely low temperature environments.

[0039] When the car is in a low-temperature environment, water vapor in the air easily condenses in the gaps of the mechanical lock mechanism, which hinders the unlocking movement of the mechanical lock mechanism and causes the mechanical lock mechanism of the hood to be unable to unlock normally, causing great inconvenience to the car owner.

[0040] Based on the above technical problems, an embodiment of the present application discloses a hood lock device with the function of electromagnetic induction heating and thawing, which can effectively solve the problem that the hood lock device cannot be unlocked normally, and solve the inconvenience caused to the car owner by the inability to unlock the hood lock device.

[0041] like Figure 1 As shown, the hood lock device 100 disclosed in the embodiment of the present application includes: a lock body assembly 101 , an actuator 102 , a cable 103 and a heating device 104 .

[0042] Among them, the lock body assembly 101 is a structure for locking the hood and the body, one end of the cable 103 is connected to the lock body assembly 101, and the other end of the cable 103 is connected to the actuator 102, that is, the actuator 102 and the lock body assembly 101 are connected through the cable 103.

[0043] The actuator 102 controls the switching between the locked state and the unlocked state of the lock body assembly 101 through the cable 103, thereby achieving the locking and unlocking of the hood.

[0044] The heating device 104 is installed on the lock body assembly 101 and heats the lock body assembly 101 to increase the temperature of the lock body assembly 101 and prevent condensation at the gap position of the lock body assembly 101.

[0045] It should be noted that the hood lock device 100 disclosed in the embodiment of the present application is provided with a heating device 104, which can heat the lock body assembly 101 of the hood lock device 100, increase the temperature of the lock body assembly 101, prevent condensation at the gap position of the lock body assembly 101, and avoid the problem of the lock body assembly 101 being unable to be unlocked.

[0046] Figure 1 The cable 103 includes an electric pull-in cable 1031 and an electric unlocking cable 1032 .

[0047] The electric pull-in cable 1031 and the electric release cable 1032 are both connected to the lock body assembly 101 and to the actuator 102. The actuator 102 electrically controls the lock body assembly 101 to lock the hood, thereby locking the hood to the vehicle body, through an electrical control signal and the electric pull-in cable 1031. The actuator 102 electrically controls the lock body assembly 101 to unlock the hood, thereby unlocking the hood from the vehicle body, through an electrical control signal and the electric release cable 1032.

[0048] It should be noted that the electric control signal includes an electric control locking signal and an electric control unlocking signal. When the actuator 102 receives the electric control locking signal, the actuator 102 is electrically connected to the lock body assembly 101 through the electric suction wire 1031; when the actuator 102 receives the electric control unlocking signal, the actuator 102 is electrically connected to the lock body assembly 101 through the electric unlocking wire 1032.

[0049] In one possible implementation, the actuator 102 includes but is not limited to a motor.

[0050] Figure 1 The lock body assembly 101 can be an existing known lock body, or a lock body improved on the basis of an existing known lock body. As long as the structure can achieve locking and unlocking of the hood and the body, it is within the protection scope.

[0051] In some embodiments, the lock body assembly 101 may include a lock body base plate (not shown) and an electric unlocking mechanism (not shown).

[0052] The electric unlocking mechanism is connected to the actuator 102 via an electric pull-in wire 1031 and an electric unlocking wire 1032. Under the action of the actuator 102, the electric unlocking mechanism changes its state, thereby locking and unlocking the lock body assembly 101.

[0053] In other optional embodiments, the lock body assembly 101 may further include a manual unlocking mechanism (not shown in the figure) and an unlocking handle (not shown in the figure).

[0054] The manual unlocking mechanism is connected to the unlocking handle, and the lock body assembly 101 is locked and unlocked by controlling the change of the state of the manual unlocking mechanism through the receiving handle.

[0055] The embodiments of the present application do not limit the manual unlocking mechanism and the electric unlocking mechanism, and reference may be made to existing known structures.

[0056] The heating device 104 disclosed in the embodiments of this application includes, but is not limited to, installation at the electric unlocking mechanism and the manual unlocking mechanism. Of course, the heating device 104 can also be installed on the bottom plate of the lock body. The installation location and installation method of the heating device 104 can be set according to different needs and are all within the protection range.

[0057] The following combination Figure 2 and Figure 3 The structure of the heating device 104 will be described.

[0058] like Figure 2 and Figure 3 As shown, the heating device 104 includes a heating module 1041 , a panel 1042 and a shell 1043 .

[0059] The heating module 1041 is an electromagnetic induction heating module, which optionally includes an electromagnetic induction coil and a control circuit. The electromagnetic induction coil includes, but is not limited to, a coiled arrangement forming a flat electromagnetic induction coil disk. The electromagnetic induction coil is connected to a power supply device via the control circuit, forming a closed loop. It is understood that the power supply device herein may be a battery in a vehicle that generates alternating current.

[0060] It should be noted that the heating module 1041 in the embodiment of the present application can also adopt a resistance heating method. Specifically, the heating module 1041 includes a resistor, and the resistor is electrically connected to the power supply device. When current passes through the resistor, it can generate heat to achieve the purpose of heating.

[0061] The embodiment of the present application uses an electromagnetic induction heating module, which can improve thermal efficiency, increase heating speed, and achieve more significant energy savings. In addition, the use of an electromagnetic induction heating module integrated into the lock body can also optimize assembly time and reduce wiring harness development costs.

[0062] In some embodiments, the electromagnetic induction coil is wound with a special enameled wire that is resistant to high temperature, oxidation and has low resistance. Its shape and size are set according to the shape and area of ​​the desired heating position and are not specifically limited here.

[0063] One side of the panel 1042 is in contact with the heating module 1041 , and the other side of the panel 1042 is in contact with the lock body assembly 101 .

[0064] The panel 1042 is made of metal. The electromagnetic waves generated by the electromagnetic induction coil will heat the panel 1042. After the panel 1042 is heated, the heat can be transferred to the lock body assembly 101, thereby increasing the temperature of the lock body assembly 101 and melting the condensed ice in the lock body assembly 101.

[0065] The shell 1043 is located on a side of the heating module 1041 away from the panel 1042 . The shell 1043 is connected to the panel 1042 , and the electromagnetic induction coil is placed between the shell 1043 and the panel 1042 .

[0066] The housing 1043 is made of a high-temperature resistant material, including but not limited to a plastic housing. The heating module 1041 is encapsulated between the housing 1043 and the panel 1042 , thereby achieving waterproof and dustproof protection for the heating module 1041 .

[0067] like Figure 3 As shown, the heating module 1041 is provided with a connection hole 10411. Optionally, the heating module 1041 is provided with multiple connection holes 10411 along the circumference, and the connection holes 10411 are evenly arranged along the circumference of the heating module 1041. Optionally, there are three connection holes 10411.

[0068] The panel 1042 has a first assembly hole 10421 , which includes but is not limited to a threaded hole. A plurality of first assembly holes 10421 are arranged along the circumference of the panel 1042 , for example two, and are arranged at diagonal corners of the panel 1042 .

[0069] The housing 1043 has a receiving groove 10431 , a connecting column 10432 and a second assembly hole 10433 .

[0070] The shape of the accommodating groove 10431 is adapted to the shape of the heating module 1041 , which can be understood as follows: the outer contour of the accommodating groove 10431 is the same as the outer contour of the heating module 1041 , and the size is also the same.

[0071] The depth of the receiving groove 10431 may be the same as the thickness of the heating module 1041 , or the depth of the receiving groove 10431 may be greater than the thickness of the heating module 1041 .

[0072] The connecting post 10432 is disposed at the bottom of the receiving groove 10431. The connecting post 10432 is opposite to the connecting hole 10411. During the assembly of the heating module 1041 and the housing 1043, the connecting hole 10411 of the heating module 1041 is assembled and connected to the connecting post 10432. Optionally, the connecting post 10432 and the connecting hole 10411 are arranged in a one-to-one correspondence.

[0073] The connection between the heating module 1041 and the shell 1043 is achieved by assembling the connecting column 10432 and the connecting hole 10411, which can simplify the connection method between the heating module 1041 and the shell 1043 and improve assembly efficiency.

[0074] The second assembly hole 10433 is disposed in the housing 1043 at a position away from the receiving groove 10431, and the second assembly hole 10433 is opposite the first assembly hole 10421. During assembly of the panel 1042 and the housing 1043, the first assembly hole 10421 of the panel 1042 is opposite the second assembly hole 10433 of the housing 1043, and the panels 1042 and the housing 1043 are connected via threaded connectors, thereby securing the panel 1042 to the housing 1043. After the panel 1042 and the housing 1043 are connected, the panel 1042 can limit the installation of the heating module 1041 within the receiving groove 10431. The specific limiting direction is the connection direction of the panel 1042 and the housing 1043, that is, the panel 1042 is used to install the heating module 1041 within the receiving groove 10431.

[0075] The panel 1042 and the housing 1043 of the embodiment of the present application are connected by screws, and the connection method is simple and easy to operate.

[0076] The shapes of the panel 1042 and the shell 1043 in the embodiment of the present application can be set according to different needs and are all within the protection range.

[0077] like Figure 4 As shown, in another optional embodiment, the hood lock device further includes a temperature sensor 105 .

[0078] The temperature sensor 105 is installed on the lock body assembly 101 , and the temperature sensor 105 detects the temperature of the lock body assembly 101 .

[0079] The temperature sensor 105 may be installed at a location including, but not limited to, a manual unlocking mechanism and / or an electric unlocking mechanism of the lock assembly 101. Alternatively, the temperature sensor 105 may be installed at a base plate of the lock assembly 101. The temperature sensor 105 may be installed by, but not limited to, bonding, threaded connection, and snap-fitting.

[0080] The temperature sensor 105 is connected to the heating device 104 . Optionally, the temperature sensor 105 is connected to the heating module 1041 of the heating device. More specifically, the temperature sensor 105 is connected to the control circuit of the heating module 1041 .

[0081] Combine Figure 6 As shown, in some embodiments, the temperature sensor 105 is connected to the zone control unit (ZCU) of the vehicle, and the heating module 1041 is connected to the ZCU. It should be noted that the temperature sensor 105 and the heating module 1041 are connected, including but not limited to, through the ZCU. They can also be controlled by other control units of the vehicle, and all are within the protection range.

[0082] The connection between the temperature sensor 105, the regional control unit, and the heating module 1041 shows that the temperature sensor 105 detects the temperature of the lock body assembly 101 in real time and transmits the detected temperature data to the regional control unit. The regional control unit controls the heating power of the heating module 1041 based on the acquired temperature data. Optionally, the control circuit can be directly integrated into the regional control unit.

[0083] The temperature sensor 105 and the heating module 1041 are connected via a regional control unit, which can realize automatic adjustment of the power of the heating module 1041, achieve automatic deicing effect, and improve the intelligence of the vehicle with the hood lock device 100.

[0084] The specific control process of the heating module 1041 in the embodiment of the present application is as follows: the regional control unit obtains that the temperature of the lock body assembly 101 detected by the temperature sensor 105 is lower than the first preset temperature, the regional control unit controls the heating module 1041 to start, and the control circuit of the heating module 1041 controls the electromagnetic induction coil to be in a first power state, at which time a current of a first magnitude and a first frequency corresponding to the first power flows through the electromagnetic induction coil.

[0085] After the heating module 1041 is started, it can heat the lock body assembly 101 to increase the temperature of the lock body assembly 101 and solve the problem of the lock body assembly 101 being frozen.

[0086] The regional control unit obtains that the temperature of the lock body assembly 101 detected by the temperature sensor 105 is higher than the second preset temperature, and the regional control unit controls the control circuit of the heating module 1041 to cut off the power to the electromagnetic induction coil.

[0087] After the electromagnetic induction coil is powered off, the heating module 1041 is in an inoperative state, that is, the heating module 1041 stops heating the lock body assembly 101, thereby preventing the lock body assembly 101 from being overheated, affecting the normal use of the lock body assembly 101, and avoiding energy waste.

[0088] Herein, the first preset temperature is a freezing critical temperature, for example, zero degrees or 5 degrees C. The second preset temperature is higher than the first preset temperature, and for example, the second preset temperature is 30 degrees C.

[0089] Specifically, the temperature sensor 105 detects that the temperature of the lock body assembly 101 is lower than the first preset temperature, and the regional control unit controls the electromagnetic induction coil of the heating module 1041 to be energized. The heating module 1041 heats the lock body assembly 101, and the temperature of the lock body assembly 101 gradually rises until the temperature of the lock body assembly 101 reaches the second preset temperature.

[0090] When the temperature sensor 105 detects that the temperature of the lock body assembly 101 has reached the second preset temperature, the regional control unit controls the electromagnetic induction coil of the heating module 1041 to be de-energized, and the heating module 1041 stops heating the lock body assembly 101. If the ambient temperature is low, the temperature of the lock body assembly 101 decreases until it reaches the first preset temperature. At this point, the regional control unit controls the heating module 1041 to be activated again, and this cycle repeats.

[0091] It should be noted that the first preset temperature and the second preset temperature are set to be different in this article, and there is a difference between the two, which can avoid the number of startups of the electromagnetic induction coil, avoid frequent startup of the electromagnetic induction coil, and ensure the service life of the heating module 1041.

[0092] In some embodiments, the temperature sensor 105 detects that the temperature at the lock body assembly 101 is lower than the first preset temperature and the heating module 1041 is in the started state. If the temperature at the lock body assembly 101 continues to drop or the temperature of the lock body assembly 101 remains unchanged, the regional control unit controls the control circuit of the heating module 1041, and the control circuit puts the electromagnetic induction coil in the second power state. At this time, a current of a second magnitude and a second frequency corresponding to the second power flows through the electromagnetic induction coil.

[0093] It should be noted that the first magnitude in the first power state is smaller than the second magnitude in the second power state, and the first frequency in the first power state is smaller than the second frequency in the second power state. That is, the first power is smaller than the second power.

[0094] The first frequency being lower than the second frequency can achieve a rate of change in the temperature of the electromagnetic induction coil.

[0095] By increasing the power of the electromagnetic induction coil of the heating module 1041 during operation, the temperature of the heating device 104 can be increased, thereby increasing the temperature of the lock body assembly 101 and accelerating the ice melting speed of the lock body assembly 101.

[0096] The hood lock device 100 of the embodiment of the present application utilizes a temperature sensor 105 and a control unit to automatically control the start and stop of the heating device 104, thereby realizing automatic control of the heating of the lock body assembly 101, which is beneficial to reducing the labor intensity of the operator in controlling the heating device 104 and can improve the precise control of the temperature of the lock body assembly 101.

[0097] Furthermore, the heating device 104 and temperature sensor 105 of the hood lock device 100 of the present embodiment are both integrated into the lock body assembly 101, enabling real-time and accurate temperature measurement of the lock body assembly 101, making temperature control of the lock body assembly 101 more sensitive. This high degree of component integration reduces vehicle installation costs, eliminates the need for additional accessories, and improves assembly efficiency.

[0098] like Figure 5 As shown, the embodiment of the present application further discloses a vehicle, including a hood locking device 100 , a vehicle body 200 and a hood 300 .

[0099] One end of the hood 300 along the length direction of the vehicle body 200 is hinged to the vehicle body 200 , and the other end of the hood 300 along the length direction of the vehicle body 200 is connected to the vehicle body 200 via the hood locking device 100 .

[0100] Herein, the length direction of the vehicle body 200 is the direction from the front to the rear of the vehicle, and the width direction of the vehicle body 200 is perpendicular to the length direction of the vehicle body 200. The width direction of the vehicle body 200 may be the direction of the line connecting the doors on both sides of the vehicle.

[0101] Optionally, the hood lock device 100 is installed on the vehicle body 200, and the hood 300 has an adapting structure for locking with the hood lock device 100. Optionally, the adapting structure on the hood 300 includes but is not limited to a lock structure.

[0102] There are two hood lock devices 100 , which are distributed at both ends of the vehicle body 200 in the width direction. Figure 5 The position A in the middle may be the installation position of the hood lock device 100. It should be noted that, Figure 5 The position of the hood lock device 100 is merely illustrated, but does not constitute a specific limitation.

[0103] By increasing the number of the hood lock devices 100 , the stability of the connection between the hood 300 and the vehicle body 200 can be improved.

[0104] Combine Figure 6 As shown, in some optional embodiments, the vehicle includes a hood unlock switch, and the hood unlock switch is connected to the heating module 1041 through the vehicle including but not limited to a regional control unit.

[0105] Optionally, the hood unlock switch includes but is not limited to a mechanical switch on the vehicle body, a hood unlock button switch on the vehicle key, and an operating switch on the vehicle control screen.

[0106] The vehicle disclosed in the embodiment of the present application has the hood lock device 100 disclosed in the above embodiment. Therefore, the vehicle equipped with the hood lock device 100 also has all the above technical effects, which will not be described in detail here. It should be noted that the vehicle herein is not specifically limited and includes but is not limited to fuel vehicles, new energy vehicles, and hybrid vehicles.

[0107] like Figure 7 As shown, the embodiment of the present application further discloses a temperature control method of a vehicle hood lock device 10, comprising:

[0108] S1: Obtain the vehicle's operating status and speed.

[0109] For fuel vehicles, the vehicle's operating status can be obtained by obtaining the engine's start and stop status. If the engine is in the starting state, the vehicle is in the starting state; if the engine is in the stopping state, the vehicle is in the off state.

[0110] S21: Determine that the vehicle is in the start state and the vehicle speed meets the preset vehicle speed state, and determine the temperature of the lock body assembly 101.

[0111] If the vehicle is in the starting state and the vehicle speed is not less than the preset speed, if the temperature sensor 105 detects that the temperature of the lock body assembly 101 is lower than the first preset temperature, the control unit (for example, the area control unit) controls the heating module 1041 to start, and the control circuit of the heating module 1041 controls the electromagnetic induction coil to be in the first power state, and the heating module 1041 heats the lock body assembly 101 until the temperature of the lock body assembly 101 reaches the second preset temperature.

[0112] The temperature sensor 105 detects that the temperature of the lock body assembly 101 reaches a second preset temperature, and the control unit controls the electromagnetic induction coil of the heating module 1041 to be powered off, so that the heating module 1041 stops heating the lock body assembly 101 .

[0113] If the external environment temperature is low, the temperature of the lock body assembly 101 decreases until the temperature of the lock body assembly 101 reaches the first preset temperature, and then the regional control unit controls the heating module 1041 to start again, and so on.

[0114] Herein, the first preset temperature is a freezing critical temperature, for example, zero degrees or 5 degrees C. The second preset temperature is higher than the first preset temperature, for example, the second preset temperature is 30 degrees C. The preset vehicle speed includes but is not limited to 5 km / h.

[0115] It should be noted that: when the vehicle is in the starting state and the vehicle speed is not less than 5km / h, the vehicle is in a normal operating state and is in a state of supplying power to various devices, avoiding the problem of battery power loss caused by the vehicle's battery using the stored electricity to supply power to the temperature sensor 105 and the heating device 104 for a long time, which is beneficial to ensuring the service life of the battery.

[0116] The temperature sensor 105 detects that the temperature at the lock body assembly 101 is lower than the first preset temperature and the heating module 1041 is in the started state. If the temperature at the lock body assembly 101 continues to drop or the temperature of the lock body assembly 101 remains unchanged, the regional control unit controls the control circuit of the heating module 1041, and the control circuit puts the electromagnetic induction coil in the second power state. At this time, a current of a second magnitude and a second frequency corresponding to the second power flows through the electromagnetic induction coil.

[0117] Through the above-mentioned control method, the temperature of the lock body assembly 101 can be ensured to be always above the freezing point, thereby preventing frost from condensing in the gaps of the lock body assembly, ensuring that the user can normally open and lock the hood 300 after parking, and making it convenient for the user to take and place items from the space between the hood 300 and the vehicle body 200, or to repair the structure in the space between the hood 300 and the vehicle body 200.

[0118] S22: When the vehicle is determined to be in the ignition-off state, the temperature of the lock body assembly 101 is determined.

[0119] When the vehicle is ignition-off and the control unit detects that the hood unlock switch has been triggered and that the temperature of the lock body assembly 101 is less than a first preset temperature, the control unit activates the heating module 1041. The control circuit of the heating module 1041 energizes the electromagnetic induction coil and places it in a first power state. The heating module 1041 heats the lock body assembly 101 until the temperature of the lock body assembly 101 reaches a second preset temperature. When the temperature sensor 105 detects that the temperature of the lock body assembly 101 has reached the second preset temperature, the control unit deenergizes the electromagnetic induction coil of the heating module 1041, causing the heating module 1041 to stop heating the lock body assembly 101 and unlock the hood lock device 100.

[0120] When the vehicle is in the ignition-off state, the control unit obtains that the hood unlocking switch is triggered, and the control unit obtains that the temperature of the lock body assembly 101 is not less than the first preset temperature, the hood lock device 100 is directly unlocked.

[0121] It should be noted that the control unit obtains that the hood unlock switch is triggered in at least one of the following ways: way one, way two, and way three.

[0122] Method 1: The vehicle detects the key within a preset distance and a mechanical switch on the vehicle body is triggered. Method 2: The vehicle detects the key within a preset distance and the hood unlock button on the key is triggered, and the triggering duration is not less than a preset duration. Method 3: The vehicle detects the key within a preset distance and an operating switch on the vehicle control screen is triggered.

[0123] The hood unlock switch may be triggered in a manner including, but not limited to, the aforementioned methods. Alternatively, the vehicle may detect that the key is within a predetermined distance and an operation button on the smart terminal is triggered. Alternatively, the vehicle may detect that a compatible smart terminal is within a predetermined distance and an operation button on the smart terminal is triggered.

[0124] It should be noted that the way in which the hood unlock switch is triggered may be an existing known way, or a way improved on the basis of an existing known solution. As long as the way in which the hood unlock switch can be triggered is achieved, it is within the scope of protection.

[0125] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0126] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hood lock device, characterized in that: include: a lock body assembly (101), the lock body assembly (101) being configured to connect the hood (300) and the vehicle body (200); a heating device (104), the heating device (104) being in contact with the lock body assembly (101); A temperature sensor (105) is installed on the lock body assembly (101), and the temperature sensor (105) is connected to the heating device (104). When the temperature sensor (105) detects that the temperature of the lock body assembly (101) is lower than a first preset temperature, the heating device (104) is started. When the temperature sensor (105) detects that the temperature of the lock body assembly (101) is higher than a second preset temperature, the heating device (104) is stopped, and the first preset temperature is lower than the second preset temperature.

2. The hood lock device according to claim 1, characterized in that: The lock body assembly (101) includes an electric unlocking mechanism, and the heating device (104) is arranged on the electric unlocking mechanism; Alternatively, the lock body assembly (101) includes a manual unlocking mechanism, and the heating device (104) is provided on the manual unlocking mechanism; Alternatively, the lock body assembly (101) includes an electric unlocking mechanism and a manual unlocking mechanism, and the heating device (104) is provided on at least one of the electric unlocking mechanism and the manual unlocking mechanism.

3. The hood lock device according to claim 1, characterized in that: The heating device (104) is an electromagnetic induction heating device.

4. The hood lock device according to claim 3, characterized in that: The heating device (104) comprises: A heating module (1041), the heating module (1041) comprising an electromagnetic induction coil and a control circuit, wherein the electromagnetic induction coil and the control circuit form a loop with a power supply device; A panel (1042), the panel (1042) and the heating module (1041) are located on one side of the heating module (1041) along an axial direction, the panel (1042) is a metal panel, and the panel (1042) is in contact with the lock body assembly (101); A shell (1043), the shell (1043) is located on a side of the heating module (1041) away from the panel (1042), the shell (1043) has a receiving groove (10431) for receiving the heating module (1041), the shell (1043) and the panel (1042) are arranged axially along the heating module (1041) and are connected, and the heating module (1041) is confined in the receiving groove (10431) between the connected shell (1043) and the panel (1042).

5. A vehicle comprising a vehicle body (200), a hood (300) and a hood locking device (100), characterized in that: The hood lock device (100) is the hood lock device (100) according to any one of claims 1 to 4.

6. The vehicle according to claim 5, characterized in that Also includes: Hood release switch and control unit, The hood unlocking switch is connected to the control unit, the control unit is connected to a temperature sensor (105) of the hood lock device (100), and the control unit is connected to a heating device (104) of the hood lock device (100).

7. A temperature control method for a vehicle hood lock device, applied to the vehicle according to claim 5 or 6, characterized in that: include: Determining that the vehicle is in a start state and the vehicle speed is greater than a preset value, if the temperature of the lock body assembly is lower than a first preset temperature, the heating module is powered on and the electromagnetic induction coil of the heating module is in a first power state until the temperature of the lock body assembly reaches a second preset temperature, at which point the heating module is powered off; Determining that the vehicle is in a start state and the vehicle speed is greater than a preset value, if the temperature of the lock body assembly is less than a second preset temperature and not less than the first preset temperature, the heating module maintains the current state; Determining that the vehicle is in the ignition-off state and the hood unlock switch is triggered, if the temperature of the lock assembly is lower than a first preset temperature, the heating module is powered on and the electromagnetic induction coil of the heating module is in a first power state until the temperature of the lock assembly reaches a second preset temperature, at which point the heating module is powered off and the lock assembly is unlocked; It is determined that the vehicle is in an ignition-off state and the hood unlocking switch is triggered. If the temperature of the lock body assembly is not less than a first preset temperature, the lock body assembly is unlocked.

8. The temperature control method of the vehicle hood lock device according to claim 7, characterized in that: The method for triggering the hood unlock switch is: the vehicle detects that the vehicle key is within a preset distance and a mechanical switch on the vehicle body is triggered; Alternatively, the hood unlocking switch is triggered in the following manner: the vehicle detects that the vehicle key is within a preset distance, and the hood unlocking button switch of the vehicle key is triggered, and the triggering duration is not less than a preset duration; Alternatively, the hood unlocking switch is triggered in the following manner: the vehicle detects that the vehicle key is within a preset distance, and an operation switch on the vehicle control screen is triggered.

9. The temperature control method of the vehicle hood lock device according to claim 7, characterized in that: If the temperature of the lock body assembly is lower than the first preset temperature, the heating module is powered on and the electromagnetic induction coil of the heating module is in the first power state, and until the temperature of the lock body assembly reaches the second preset temperature, the heating module is powered off, which also includes: If the temperature of the lock body assembly continues to drop or the temperature of the lock body assembly remains unchanged, the electromagnetic induction coil of the heating module is in the second power state; The current value corresponding to the second power is greater than the current value corresponding to the first power.

10. The temperature control method of the vehicle hood lock device according to claim 9, characterized in that: The frequency of the current corresponding to the second power is greater than the frequency of the current corresponding to the first power.

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