CN210518161U - Control circuit and device for electric tail gate stay bar - Google Patents
Control circuit and device for electric tail gate stay bar Download PDFInfo
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- CN210518161U CN210518161U CN201921549939.8U CN201921549939U CN210518161U CN 210518161 U CN210518161 U CN 210518161U CN 201921549939 U CN201921549939 U CN 201921549939U CN 210518161 U CN210518161 U CN 210518161U
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Abstract
The utility model provides an electronic tail-gate vaulting pole control circuit and device, the setting is inside electronic tail-gate vaulting pole, and through adding the control module who is connected with the host computer, a detection module that is used for the drive module of direct drive motor and is used for detecting motor operating parameter, realized under the condition that need not outside special controller, can be according to the operation of the control command control motor of host computer, and then realize the control to the automatic switching of car tail-gate, the complicated and inconvenient problem of use of circuit that exists owing to use outside special controller among the traditional technical scheme has been solved.
Description
Technical Field
The utility model belongs to the technical field of motor control, especially, relate to an electronic tail-gate vaulting pole control circuit and device.
Background
At present, the electronic tail-gate vaulting pole action is controlled to the electronic tail-gate vaulting pole action of outside special controller of traditional electronic tail-gate vaulting pole general needs to realize the automatic switching to the car tail-gate, but the circuit of special controller is general all more complicated, needs the user to aim at the car tail-gate with special controller in addition outside the car tail-gate and operates, uses inconveniently.
Therefore, the traditional technical scheme has the problems of complex circuit and inconvenient use.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides an electric tailgate stay bar control circuit and device, which aims to solve the problems of complicated circuit and inconvenient use existing in the conventional technical solution.
The utility model discloses a first aspect of the embodiment provides an electronic tail-gate vaulting pole control circuit, set up inside electronic tail-gate vaulting pole and with the motor of electronic tail-gate vaulting pole is connected, electronic tail-gate vaulting pole control circuit includes: the control module is connected with an upper computer and generates a driving signal according to a control instruction of the upper computer; the control end of the driving module is connected with the control module, the output end of the driving module is connected with the motor, and the driving module is used for driving the motor under the control of the driving signal; the detection module is connected with the control module, placed on the motor, used for detecting the operation parameters of the motor and transmitting the operation parameters to the control module, and used for adjusting the driving signals according to the operation parameters.
In one embodiment, the control module includes a microprocessor.
In one embodiment, the driving module includes: the power end of the driving unit is externally connected with a power supply, the control end of the driving unit is connected with the control module, and the driving unit are used for driving the motor; and the sampling unit, the first input end of the sampling unit with the power is connected, the second input end of the sampling unit with the drive unit is connected, the output end of the sampling unit with the control module is connected, and the sampling unit is used for collecting the current of the drive module and outputting the current to the control module.
In one embodiment, the driving unit includes: the first resistor, the first bipolar MOS chip, the second bipolar MOS chip and the first bidirectional transient suppression diode are connected, the first end of the first resistor is connected with the power supply, the second end of the first resistor is connected with the first drain end of the first bipolar MOS chip and the first drain end of the second bipolar MOS chip, the first end of the second drain end of the first bipolar MOS chip and the first end of the first bidirectional transient suppression diode are connected with the first end of the motor, the second end of the first bidirectional transient suppression diode is connected with the first source end of the second bipolar MOS chip, the second source end of the first bipolar MOS chip and the second source end of the second bipolar MOS chip are connected to an analog ground in common, the second drain end of the second bipolar MOS chip is connected with the second end of the motor, and the first source end of the first bipolar MOS chip is connected with the first source end of the first bipolar MOS chip, The first gate terminal of the first double MOS chip, the second drain terminal of the first double MOS chip, the first source terminal of the second double MOS chip, the first gate terminal of the second double MOS chip, the second gate terminal of the second double MOS chip and the second drain terminal of the second double MOS chip are respectively connected with the general input and output ends of the control module one by one.
In one embodiment, the sampling unit includes: the first input end of the current detector is connected with the power supply, the second input end of the current detector is connected with the second end of the first resistor, the output end of the current detector is connected with the first end of the second resistor, the second end of the second resistor is connected with the control module, the first end of the third resistor and the first end of the first capacitor, the second end of the third resistor, the second end of the first capacitor and the power supply negative end of the current detector are connected to digital ground in a shared mode, the first end of the second capacitor is connected with the power supply positive end of the current detector and the first voltage-stabilized power supply, and the second end of the second capacitor is connected to the digital ground.
In one embodiment, the detection module comprises: the power supply circuit comprises a first speed sensor, a second speed sensor, a third capacitor and a fourth capacitor, wherein a power supply end of the first speed sensor is connected with a second stabilized voltage supply, an output end of the first speed sensor is connected with the control module and a first end of the third capacitor, a ground end of the first speed sensor is connected with a digital ground, a second end of the third capacitor is connected with the digital ground, a power supply end of the second speed sensor is connected with the second stabilized voltage supply, an output end of the second speed sensor is connected with the control module and a first end of the fourth capacitor, a ground end of the second speed sensor is connected with the digital ground, and a second end of the fourth capacitor is connected with the digital ground.
In one embodiment, the power supply further includes a power supply module, an input end of the power supply module is externally connected with a power supply, an output end of the power supply module is connected with the control module and the driving module, and the power supply module is configured to filter the power supply and output the filtered power supply to the control module and the driving module.
In one embodiment, the isolation device further comprises an isolation module, wherein a first end of the isolation module is connected with a digital ground, a second end of the isolation module is connected with an analog ground, and the isolation module is used for isolating the digital ground and the analog ground.
A second aspect of the embodiments provides an electronic tail-gate vaulting pole controlling means, include: electronic tail-gate vaulting pole with as the first aspect of the embodiment of the utility model discloses an electronic tail-gate vaulting pole control circuit, electronic tail-gate vaulting pole control circuit locates in the electronic tail-gate vaulting pole.
In one embodiment, the electric tailgate support rod comprises a first pipe body, a second pipe body sleeved outside the first pipe body or nested inside the first pipe body, a motor installed inside the first pipe body, a screw rod driven by the motor to rotate, a transmission part in threaded fit with the screw rod and fixed with the second pipe body, and an elastic part used for pushing the second pipe body away from the first pipe body, wherein the transmission part is provided with a threaded hole in threaded fit with the screw rod, one end of the first pipe body, far away from the second pipe body, is provided with a first connecting part, one end of the second pipe body, far away from the first pipe body, is provided with a second connecting part, and the electric tailgate support rod control circuit is located inside the first pipe body.
Foretell electronic tail-gate vaulting pole control circuit and device, the setting is inside electronic tail-gate vaulting pole, and through adding the control module who is connected with the host computer, a detection module that is used for the drive module of direct drive motor and is used for detecting motor running parameter, realized need not under the condition of outside special controller, can be according to the operation of the control command control motor of host computer, and then realize the control to the automatic switching of car tail-gate, the complicated and inconvenient problem of use of circuit that exists owing to use outside special controller among the traditional technical scheme has been solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic circuit diagram of a control circuit of an electric tailgate brace according to an embodiment of the present invention;
FIG. 2 is an exemplary circuit schematic of a control module in the power tailgate brace control circuit shown in FIG. 1;
FIG. 3 is a schematic circuit diagram of a driving module in the control circuit of the power tailgate brace shown in FIG. 1;
FIG. 4 is an exemplary circuit schematic of a drive unit of the drive module in the power tailgate stay control circuit shown in FIG. 3;
FIG. 5 is an exemplary circuit schematic of a sampling unit of a drive module in the power tailgate brace control circuit shown in FIG. 3;
FIG. 6 is an exemplary circuit schematic of a detection module in the power tailgate stay control circuit shown in FIG. 1;
fig. 7 is a schematic structural diagram of an electric tail gate stay control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a circuit diagram of a control circuit of an electric tailgate brace according to a first aspect of an embodiment of the present invention is shown, for convenience of illustration, only the portion related to the embodiment is shown, and detailed descriptions are as follows:
the electronic tail-gate vaulting pole control circuit in this embodiment sets up inside the electronic tail-gate vaulting pole and is connected with the motor 50 of electronic tail-gate vaulting pole, and electronic tail-gate vaulting pole control circuit includes: the control module 100 is connected with an upper computer, the control end of the driving module 200 is connected with the control module 100, the output end of the driving module 200 is connected with the motor 50, the detection module 300 is connected with the control module 100, and the control module 100 generates a driving signal according to a control instruction of the upper computer; the driving module 200 is used for driving the motor 50 under the control of the driving signal; the detection module 300 is disposed on the motor 50, the detection module 300 is configured to detect an operation parameter of the motor 50 and transmit the operation parameter to the control module 100, and the control module 100 adjusts the driving signal according to the operation parameter.
It should be understood that the upper computer may be an automobile body control system, the control module 100 may be in communication connection with the automobile body control system through a Lin (local interconnect Network) bus, and optionally, an anti-static tube may be connected between the Lin bus, to which the control module 100 is connected with the upper computer, and the analog ground GND; the control instruction can be a door opening instruction, a door closing instruction and the like, and specifically, the control instruction can be a data signal; the driving signal may be a PWM (pulse width modulation) signal; the control module 100 may be composed of a microprocessor having functions such as a communication function and a signal processing function; the driving module 200 may be formed of a device or an integrated circuit having a motor driving function, such as an H-bridge driving circuit; the detection module 300 may be formed by a device or a chip having a motor parameter detection function, such as a speed sensor capable of detecting a rotation speed, a temperature sensor capable of detecting a temperature, and the like; the operating parameters may include speed, torque, acceleration, steering, temperature, etc.
The electronic tail-gate vaulting pole control circuit in this embodiment sets up inside electronic tail-gate vaulting pole, and through adding the control module 100 with the host computer connection, a detection module 300 that is used for directly driving drive module 200 of motor 50 and is used for detecting motor 50 operating parameter, realized need not under the condition of outside special controller, can be according to the operation of the control command control motor 50 of host computer, and then realize the control to the automatic switching of car tail-gate, the complicated and inconvenient problem of use of circuit that exists owing to use outside special controller among the traditional technical scheme has been solved.
Referring to FIG. 2, in one embodiment, the control module 100 includes a microprocessor U1.
It should be understood that the control module 100 in this embodiment employs a microprocessor U1, such as a microprocessor of type MC9S12ZVM, MC9S12ZVMB, MLX81325 or MLX81205, that integrates a high performance MCU, a linear regulator, a MOS gate drive, and a Lin bus. In other embodiments, other types of microprocessors may be employed.
It should be understood that the microprocessor U1 in this embodiment can output a linearly stable voltage in addition to the drive signal.
It should be understood that the electric tail gate stay bar control circuit in the embodiment is formed by adding the highly integrated microprocessor U1, so that the electric tail gate stay bar control circuit tends to be miniaturized, and further, the electric tail gate stay bar control circuit can be directly added without increasing the size of the internal space of the electric tail gate stay bar.
Referring to fig. 3, in an embodiment, the driving module 200 includes a driving unit 210 and a sampling unit 220, a power 400 end of the driving unit 210 is externally connected to the power 400, a control end of the driving unit 210 is connected to the control module 100, a first input end of the sampling unit 220 is connected to the power 400, a second input end of the sampling unit 220 is connected to the driving unit 210, and an output end of the sampling unit 220 is connected to the control module 100; the driving unit 210 and the driving unit 210 are used for driving the motor 50; the sampling unit 220 is used for collecting the current of the driving module 200 and outputting the current to the control module 100.
It should be understood that the driving unit 210 may be formed by a device or a chip having a motor driving function, such as an H-bridge driving circuit formed by N-channel MOS transistors; the sampling unit 220 may be formed of a device or a chip having a current sampling function, such as a sampling resistor.
The driving module 200 in this embodiment, by adding the driving unit 210 and the sampling unit 220, realizes that the driving current of the driving unit 210 is sampled and fed back to the control module 100 while the motor 50 is driven according to the driving signal of the control module 100, so that the control module 100 can obtain the driving current of the motor 50 in real time, and the motor 50 is prevented from being damaged due to the overlarge driving current.
Referring to fig. 4, in one embodiment, the driving unit 210 includes: a first resistor R1, a first nmos chip U2, a second nmos chip U3, and a first bi-directional transient suppression diode D5, wherein a first end of the first resistor R1 is connected to the power supply 400, a second end of the first resistor R1 is connected to a first drain end of the first nmos chip U2 and a first drain end of the second nmos chip U3, a first end of a second drain end of the first nmos chip U2 and a first end of a first bi-directional transient suppression diode D5 are connected to a first end (P1) of the motor 50, a second end of the first bi-directional transient suppression diode D5 is connected to a first end of the second nmos chip U3, a second source end of the first nmos chip U2 and a second source end of the second nmos chip U3 are connected to the analog ground GND, a second drain end of the first bi-MOS chip U3 is connected to a second end (P2) of the motor 50, and the first drain end of the first nmos chip U2 is connected to the second terminal of the motor 50, The first gate terminal of the first nmos chip U2, the second gate terminal of the first nmos chip U2, the second drain terminal of the first nmos chip U2, the first source terminal of the second nmos chip U3, the first gate terminal of the second nmos chip U3, the second gate terminal of the second nmos chip U3, and the second drain terminal of the second nmos chip U3 are connected to the respective general-purpose input/output terminals of the control module 100 one by one.
It should be understood that the first and second nmos chips U2 and U3 in this embodiment are nmos chips of type BUK7K6R2-40ED, and in other embodiments, other types of nmos chips may be used.
Referring to fig. 5, in one embodiment, the sampling unit 220 includes: a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, and a current detector U4, a first input terminal of the current detector U4 is connected to the power supply 400, a second input terminal of the current detector U4 is connected to a second terminal of the first resistor R1, an output terminal of the current detector U4 is connected to a first terminal of the second resistor R2, a second terminal of the second resistor R2 is connected to the control module 100, a first terminal of the third resistor R3, and a first terminal of the first capacitor C1, a second terminal of the third resistor R3, a second terminal of the first capacitor C1, and a negative terminal of the power supply 400 of the current detector U4 are commonly connected to the digital DGND, a first terminal of the second capacitor C2 is connected to a positive terminal of the power supply 400 of the current detector U4 and the first regulated power supply, and a second terminal of the second capacitor C2 is connected to the digital DGND.
It should be understood that the current detector U4 in this embodiment is the current detector U4 with the model number INA139, and in other embodiments, other models of the current detector U4 may be used. The first regulated power supply can be provided by the control module 100, or a circuit composed of a regulated chip can be added to the circuit to provide the first regulated power supply.
It should be understood that, the sampling unit 220 in this embodiment, by adding the current detector U4, can convert the differential input voltage into the current output, and realize the sampling of the current, thereby avoiding the problem that the original circuit design is affected by a large error caused by only adopting the series resistance sampling in the conventional technical solution.
Referring to fig. 6, in one embodiment, the detection module 300 includes: the first speed sensor U4, the second speed sensor U5, the third capacitor C3 and the fourth capacitor C4, the power supply 400 end of the first speed sensor U4 is connected to the second regulated power supply, the output end of the first speed sensor U4 is connected to the control module 100 and the first end of the third capacitor C3, the ground end of the first speed sensor U4 is connected to the digital DGND, the second end of the third capacitor C3 is connected to the digital DGND, the power supply 400 end of the second speed sensor U5 is connected to the second regulated power supply, the output end of the second speed sensor U5 is connected to the control module 100 and the first end of the fourth capacitor C4, the ground end of the second speed sensor U5 is connected to the digital DGND, and the second end of the fourth capacitor C4 is connected to the digital DGND.
It should be appreciated that both the first speed sensor U4 and the second speed sensor U5 are provided on the motor 50, with the first speed sensor U4 being a primary speed sensor and the second speed sensor U5 being a backup speed sensor. The first speed sensor U4 and the second speed sensor U5 in this embodiment may be hall sensors of type MT4401, and in other embodiments, other types of speed sensors may be used. The second regulated power supply can be provided by the control module 100, or a circuit composed of a regulated chip can be added to the circuit to provide the second regulated power supply.
It should be understood that when the detection module 300 needs to detect other data of the motor 50, the detection module 300 should employ a corresponding sensor or corresponding device.
In one embodiment, the system further includes a power module, an input end of the power module is externally connected with the power supply 400, an output end of the power module is connected with the control module 100 and the driving module 200, and the power module is configured to filter the power supply 400 and output the filtered power to the control module 100 and the driving module 200.
It should be understood that the power module may be composed of a bidirectional suppressor and a filter capacitor, wherein a first terminal of the bidirectional suppressor and a first terminal of the filter capacitor are connected to the input terminal of the power module, and a second terminal of the bidirectional suppressor and a second terminal of the filter capacitor are connected to the analog ground GND.
The electric tail gate stay bar control circuit in the embodiment realizes the stability of the input power supply 400 by adding the power supply module, and avoids the circuit damage caused by the unstable power supply.
In one embodiment, the digital-to-ground converter further comprises an isolation module, wherein a first end of the isolation module is connected with the digital ground DGND, a second end of the isolation module is connected with the analog ground GND, and the isolation module is used for isolating the digital ground DGND from the analog ground GND.
It should be understood that the isolation module in this embodiment may be composed of a resistor, and in this embodiment, by adding the isolation module between the digital ground DGND and the analog ground GND, there is no voltage difference between the digital ground DGND and the analog ground GND.
A second aspect of the embodiments provides an electronic tail-gate vaulting pole controlling means, include: an electric tailgate stay bar; and as the utility model discloses the electronic tail-gate vaulting pole control circuit 90 of the first aspect of the embodiment, electronic tail-gate vaulting pole control circuit 90 locates in the electronic tail-gate vaulting pole, and it should be understood that the electronic tail-gate vaulting pole control circuit 90 of this embodiment second aspect is same circuit with the electronic tail-gate vaulting pole control circuit of this embodiment first aspect.
Referring to fig. 7, in an embodiment, the electric tailgate brace includes a first tube 30, a second tube 40 sleeved outside the first tube 30 or nested inside the first tube 30, a motor 50 installed inside the first tube 30, a screw 60 driven by the motor 50 to rotate, a transmission member 70 in threaded engagement with the screw 60 and fixed to the second tube 40, and an elastic member 80 for pushing the second tube 40 away from the first tube 30, the transmission member 70 has a threaded hole in threaded engagement with the screw 60, one end of the first tube 30 away from the second tube 40 has a first connection portion 10, one end of the second tube 40 away from the first tube 30 has a second connection portion 20, and the electric tailgate brace control circuit 90 is located inside the first tube 30.
Alternatively, the power tailgate stay control circuit 90 may be located at a position intermediate the first connection 10 and the motor 50.
It should be understood that, in one embodiment, the first tube 30 is an outer tube, the second tube 40 is an inner tube, the transmission member 70 is a screw sleeve corresponding to the screw 60, the elastic member 80 is a spring, the first connection portion 10 is a first ball cap, and the second connection portion 20 is a second ball cap.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An electric tailgate stay control circuit, disposed inside an electric tailgate stay and connected to a motor of the electric tailgate stay, the electric tailgate stay control circuit comprising:
the control module is connected with an upper computer and generates a driving signal according to a control instruction of the upper computer;
the control end of the driving module is connected with the control module, the output end of the driving module is connected with the motor, and the driving module is used for driving the motor under the control of the driving signal; and
the detection module is connected with the control module, the detection module is placed on the motor, the detection module is used for detecting the operation parameters of the motor and transmitting the operation parameters to the control module, and the control module adjusts the driving signals according to the operation parameters.
2. The power tailgate brace control circuit of claim 1, wherein the control module comprises a microprocessor.
3. The power tailgate brace control circuit of claim 1, wherein the drive module comprises:
the power end of the driving unit is externally connected with a power supply, the control end of the driving unit is connected with the control module, and the driving unit are used for driving the motor; and
the sampling unit, the first input of sampling unit with the power is connected, the second input of sampling unit with the drive unit is connected, the output of sampling unit with control module connects, the sampling unit is used for gathering drive module's electric current and exports control module.
4. The power tailgate stay control circuit according to claim 3, wherein said drive unit comprises: the first resistor, the first bipolar MOS chip, the second bipolar MOS chip and the first bidirectional transient suppression diode are connected, the first end of the first resistor is connected with the power supply, the second end of the first resistor is connected with the first drain end of the first bipolar MOS chip and the first drain end of the second bipolar MOS chip, the first end of the second drain end of the first bipolar MOS chip and the first end of the first bidirectional transient suppression diode are connected with the first end of the motor, the second end of the first bidirectional transient suppression diode is connected with the first source end of the second bipolar MOS chip, the second source end of the first bipolar MOS chip and the second source end of the second bipolar MOS chip are connected to an analog ground in common, the second drain end of the second bipolar MOS chip is connected with the second end of the motor, and the first source end of the first bipolar MOS chip is connected with the first source end of the first bipolar MOS chip, The first gate terminal of the first double MOS chip, the second drain terminal of the first double MOS chip, the first source terminal of the second double MOS chip, the first gate terminal of the second double MOS chip, the second gate terminal of the second double MOS chip and the second drain terminal of the second double MOS chip are respectively connected with the general input and output ends of the control module one by one.
5. The power tailgate brace control circuit of claim 4, wherein the sampling unit comprises: the first input end of the current detector is connected with the power supply, the second input end of the current detector is connected with the second end of the first resistor, the output end of the current detector is connected with the first end of the second resistor, the second end of the second resistor is connected with the control module, the first end of the third resistor and the first end of the first capacitor, the second end of the third resistor, the second end of the first capacitor and the power supply negative end of the current detector are connected to digital ground in a shared mode, the first end of the second capacitor is connected with the power supply positive end of the current detector and the first voltage-stabilized power supply, and the second end of the second capacitor is connected to the digital ground.
6. The power tailgate stay control circuit according to any of claims 1-5, wherein the detection module comprises: the power supply circuit comprises a first speed sensor, a second speed sensor, a third capacitor and a fourth capacitor, wherein a power supply end of the first speed sensor is connected with a second stabilized voltage supply, an output end of the first speed sensor is connected with the control module and a first end of the third capacitor, a ground end of the first speed sensor is connected with a digital ground, a second end of the third capacitor is connected with the digital ground, a power supply end of the second speed sensor is connected with the second stabilized voltage supply, an output end of the second speed sensor is connected with the control module and a first end of the fourth capacitor, a ground end of the second speed sensor is connected with the digital ground, and a second end of the fourth capacitor is connected with the digital ground.
7. The electric tailgate brace control circuit according to any one of claims 1-5, further comprising a power module, wherein an input end of the power module is externally connected with a power supply, an output end of the power module is connected with the control module and the driving module, and the power module is used for filtering the power supply and outputting the filtered power supply to the control module and the driving module.
8. The power tailgate stay control circuit according to any of claims 1-5, further comprising an isolation module having a first end connected to a digital ground and a second end connected to an analog ground, the isolation module for isolating the digital ground from the analog ground.
9. An electric tailgate stay bar control device, comprising:
an electric tailgate stay bar;
the power tailgate stay control circuit of any of claims 1-8 disposed within the power tailgate stay.
10. The electric tailgate stay control device according to claim 9, wherein the electric tailgate stay comprises a first tube, a second tube sleeved outside or nested inside the first tube, a motor installed inside the first tube, a screw driven by the motor to rotate, a transmission member screwed with the screw and fixed to the second tube, and an elastic member for pushing the second tube away from the first tube, the transmission member has a threaded hole screwed with the screw, an end of the first tube remote from the second tube has a first connection portion, an end of the second tube remote from the first tube has a second connection portion, and the electric tailgate stay control circuit is located inside the first tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921549939.8U CN210518161U (en) | 2019-09-17 | 2019-09-17 | Control circuit and device for electric tail gate stay bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921549939.8U CN210518161U (en) | 2019-09-17 | 2019-09-17 | Control circuit and device for electric tail gate stay bar |
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| CN210518161U true CN210518161U (en) | 2020-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914741A (en) * | 2021-10-21 | 2022-01-11 | 微进电子科技（上海）有限公司 | Control unit and control system of integrated automobile electric luggage case |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914741A (en) * | 2021-10-21 | 2022-01-11 | 微进电子科技（上海）有限公司 | Control unit and control system of integrated automobile electric luggage case |
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