Window lifting control device

Abstract

A window lifting control device applicable to electromagnetic compatibility testing of vehicles, comprising a main controller, a slave controller and an optical fiber. The main controller is arranged outside the anechoic chamber, and the slave controller is arranged inside the anechoic chamber, and the two are connected by the optical fiber. The main controller includes a lifting control device and a main optical fiber transmitting device connected to each other. The main optical fiber transmitting device is connected to the optical fiber. The lifting control device generates a window opening / closing signal. The main optical fiber transmitting device transmits the window opening / closing signal through the optical fiber. The slave controller includes a lifting driving device and a slave optical fiber receiving device connected to each other. The slave optical fiber receiving device is connected to the optical fiber, and the lifting driving device is connected to the motor controller of the window. The slave optical fiber receiving device receives the window opening / closing signal through the optical fiber. The lifting driving device drives the motor controller according to the window opening / closing signal. This window lifting control device can effectively reduce the radiation emission interference to electromagnetic compatibility testing and improve the testing efficiency.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the technical field of vehicle production testing, and more particularly, to a window lift control device. Background Art

[0002] With the rapid development of the automotive industry, the stability of vehicles has become an important indicator and is increasingly valued by automotive consumers. Since more and more motors are assembled in vehicles, and various motors including window motors, especially high-power DC brushed motors, generate serious electromagnetic interference externally. Therefore, in the electromagnetic compatibility test of vehicles, it is necessary to test the radiation emission value of the window motor in the working state.

[0003] Currently, in the electromagnetic compatibility test of window motors, it is usually necessary to additionally equip a tester in the vehicle to open and close the window by pressing the door control switch. Summary of the Invention

[0004] To solve the above problems in the prior art, embodiments of the present disclosure provide a window lift control device. The window lift control device is applicable to the electromagnetic compatibility test of vehicles. The window lift control device includes a main controller, a slave controller, and an optical fiber. The main controller is arranged outside the anechoic chamber for electromagnetic compatibility testing, and the slave controller is arranged inside the anechoic chamber. The main controller and the slave controller are connected through the optical fiber. The main controller includes a lift control device and a main optical fiber transmitting device connected to each other, wherein the main optical fiber transmitting device is connected to the optical fiber. And wherein, the lift control device is used to generate a window opening signal and a window closing signal. The main optical fiber transmitting device is used to transmit the window opening signal and the window closing signal generated by the lift control device through the optical fiber. The slave controller includes a lift driving device and a slave optical fiber receiving device connected to each other, wherein the slave optical fiber receiving device is connected to the optical fiber, and the lift driving device is connected to the motor controller of the window. And wherein, the slave optical fiber receiving device is used to receive the window opening signal and the window closing signal transmitted by the main optical fiber transmitting device through the optical fiber and deliver them to the lift driving device. The lift driving device is used to drive the motor controller according to the window opening signal or the window closing signal.

[0005] In some embodiments, the slave controller further includes a controller area network signal acquisition device and a slave optical fiber transmitting device that are interconnected. Among them, the controller area network signal acquisition device is connected to the vehicle's in-vehicle gateway through a controller area network bus, and is used to acquire vehicle messages related to overheating of the window motor from the in-vehicle gateway; the slave optical fiber transmitting device is used to transmit the vehicle messages related to overheating of the window motor through the optical fiber. And, the master controller further includes an over-temperature alarm device and a master optical fiber receiving device that are interconnected. Among them, the master optical fiber receiving device is used to receive the vehicle messages related to overheating of the window motor transmitted by the slave optical fiber transmitting device through the optical fiber; the over-temperature alarm device includes an alarm, and the over-temperature alarm device is used to drive the alarm to perform an alarm when the vehicle messages related to overheating of the window motor indicate overheating of the window motor.

[0006] In some embodiments, the output end of the over-temperature alarm device is connected to the enable end of the lifting control device. And, the over-temperature alarm device is further used to generate an over-temperature alarm signal and output it to the enable end of the lifting control device when the vehicle messages related to overheating of the window motor indicate overheating of the window motor, so that the lifting control device is disabled.

[0007] In some embodiments, the over-temperature alarm device further includes a controller area network diagnostic instrument and a triode. Among them, the fifth pin of the controller area network diagnostic instrument is coupled to the base of the triode, the collector of the triode is coupled to the enable end of the lifting control device, and the emitter of the triode is coupled to the ground.

[0008] In some embodiments, the alarm includes a light-emitting diode. Among them, the cathode of the light-emitting diode is coupled to the collector of the triode, and the anode of the light-emitting diode is coupled to the power supply terminal.

[0009] In some embodiments, the lifting control device includes a manual lifting control device, and the manual lifting control device is provided with a window opening button, a window closing button, and a signal generator. The signal generator is used to generate the window opening signal when the window opening button is pressed, and generate the window closing signal when the window closing button is pressed.

[0010] In some embodiments, the signal generator includes a signal buffer chip, and the signal buffer chip includes a first pin, a second pin, a third pin, and a fourth pin. The window opening button includes an up switch, and the window closing button includes a close switch. One end of the up switch is coupled to the power supply terminal, and the other end of the up switch is coupled to the first pin of the signal buffer chip. One end of the close switch is coupled to the power supply terminal, and the other end of the close switch is coupled to the second pin of the signal buffer chip. The third pin and the fourth pin of the signal buffer chip are coupled to the main optical fiber transmitting device. The third pin of the signal buffer chip outputs the window opening signal to the main optical fiber transmitting device, and the fourth pin of the signal buffer chip outputs the window closing signal to the main optical fiber transmitting device.

[0011] In some embodiments, the lifting control device includes an automatic lifting control device, and the automatic lifting control device is configured to generate the window opening signal and the window closing signal according to a predetermined timing sequence.

[0012] In some embodiments, the automatic lifting control device includes a switch main control chip and a power switch. Among them, the switch main control chip includes a first pin and a second pin coupled to the main optical fiber transmitting device. A predetermined timing sequence for generating the window opening signal and the window closing signal is set in the switch main control chip. The window opening signal is output from the first pin to the main optical fiber transmitting device, and the window closing signal is output from the second pin to the main optical fiber transmitting device.

[0013] In some embodiments, the lifting drive device includes a first relay, a second relay, a first resistor, and a second resistor, and the motor controller includes a window opening switch and a window closing switch. Among them, the trigger control pins of the first relay and the second relay are both coupled to the slave optical fiber receiving device, and are respectively configured to receive the window opening signal and the window closing signal delivered by the slave optical fiber receiving device. One end of the first relay is coupled to the window opening switch, and the other end is coupled to one end of the first resistor. One end of the second relay is coupled to the window closing switch, and the other end is coupled to one end of the second resistor. The other ends of the first resistor and the second resistor are coupled to the ground.

[0014] Embodiments of the present disclosure provide a window lifting control device applicable to electromagnetic compatibility testing. It is controlled on an external control device and signals are transmitted through an optical fiber transceiver device, which can effectively reduce the radiation emission interference to electromagnetic compatibility testing. The external control signal can be connected to the motor controller to indirectly control the operation of the window motor. It can achieve efficient and convenient control of the vehicle window lifting and is applied to the electromagnetic compatibility radiation emission test of the window motor under continuous working conditions. In this way, only one tester is required to complete the test, without the need for another tester to control the window lifting in the vehicle, saving labor costs, improving the existing test method, simplifying the test procedure, and improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By referring to the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the embodiments of the present disclosure will become readily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, where:

[0016] Figure 1 FIG. shows a schematic block diagram of a window lifting control device according to an embodiment of the present disclosure;

[0017] Figure 2 FIG. shows a schematic connection diagram of a window lifting control device according to an embodiment of the present disclosure;

[0018] Figure 3 FIG. shows a schematic block diagram of a window lifting control device according to another embodiment of the present disclosure;

[0019] Figure 4 FIG. shows a schematic connection diagram of a window lifting control device according to another embodiment of the present disclosure;

[0020] Figure 5 FIG. shows a schematic block diagram of a window lifting control device according to still another embodiment of the present disclosure.

[0021] In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The principles and spirit of the present disclosure will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and then implement the present disclosure, rather than limiting the scope of the present disclosure in any way.

[0023] Embodiments of the present disclosure provide a window lifting control device. Referring to Figure 1 and Figure 2 , wherein, Figure 1A schematic block diagram of a window lift control device according to an embodiment of the present disclosure is shown. Figure 2 A connection schematic diagram of a window lift control device according to an embodiment of the present disclosure is shown. This window lift control device is applicable to the electromagnetic compatibility test of a vehicle.

[0024] Referring to Figure 1 - Figure 2 , the window lift control device may include a main controller, a slave controller, and an optical fiber. The main controller may be arranged outside the anechoic chamber for electromagnetic compatibility testing, and the slave controller may be arranged inside the anechoic chamber. The main controller and the slave controller may be connected by an optical fiber.

[0025] The main controller may include a lift control device and a main optical fiber transmitting device connected to each other, wherein the main optical fiber transmitting device is connected to the optical fiber. The lift control device may be used to generate a window opening signal and a window closing signal. The main optical fiber transmitting device may be used to transmit the window opening signal and the window closing signal generated by the lift control device through the optical fiber.

[0026] The slave controller may include a lift driving device and a slave optical fiber receiving device connected to each other, wherein the slave optical fiber receiving device is connected to the optical fiber, and the lift driving device is connected to the motor controller of the window. The slave optical fiber receiving device may be used to receive the window opening signal and the window closing signal transmitted by the main optical fiber transmitting device through the optical fiber and deliver them to the lift driving device. The lift driving device may be used to drive the motor controller according to the window opening signal or the window closing signal, for example, by matching the driving resistance to drive the motor controller.

[0027] As an example, the slave controller may be directly connected to the motor controller of the window. As another example, a tee device may be provided to connect the slave controller and the original door control switch in the vehicle to the motor controller at the same time, so as to access the external control signal to the motor controller and indirectly control the operation of the window motor. At the same time, the control function of the original door control switch is retained.

[0028] The embodiment of the present disclosure provides a window lift control device applicable to electromagnetic compatibility testing. It is controlled on an external control device and transmits signals through an optical fiber transceiver device, which can effectively reduce the radiation emission interference to the electromagnetic compatibility test. The external control signal can be accessed to the motor controller to indirectly control the operation of the window motor. It can realize efficient and convenient control of the window lift of the vehicle and be applied to the electromagnetic compatibility radiation emission test of the window motor under uninterrupted working conditions. In this way, only one tester is required to complete the test, without another tester controlling the window lift in the vehicle, saving labor costs, improving the existing test method, simplifying the test procedure, and improving the test efficiency.

[0029] Referring to Figure 3 and Figure 4, wherein, Figure 3 FIG. Figure 3 shows a schematic block diagram of a window lifting control device according to another embodiment of the present disclosure. Figure 4 FIG. Figure 4 shows a schematic connection diagram of a window lifting control device according to another embodiment of the present disclosure.

[0030] As Figure 3 - Figure 4 shown, the slave controller may further include a Controller Area Network (CAN) signal acquisition device and a slave optical fiber transmission device that are interconnected. The CAN signal acquisition device and the vehicle's in-vehicle gateway may be connected via a CAN bus and may be used to acquire vehicle messages related to overheating of the window motor from the in-vehicle gateway, for example, by acquiring vehicle message information in real time. The slave optical fiber transmission device may be used to transmit vehicle messages related to overheating of the window motor via an optical fiber.

[0031] As Figure 3 shown, the master controller may further include an over-temperature alarm device and a master optical fiber receiving device that are interconnected. The master optical fiber receiving device may be used to receive, via an optical fiber, vehicle messages related to overheating of the window motor transmitted by the slave optical fiber transmission device. The over-temperature alarm device may include an alarm, and the over-temperature alarm device may be used to drive the alarm to perform an alarm when the vehicle message related to overheating of the window motor indicates that the window motor is overheated.

[0032] The above embodiments can prompt whether the motor is in an overheat protection state during operation, and are applicable to electromagnetic compatibility tests, and can ensure that electromagnetic interference is not introduced during the test to affect the test results.

[0033] As an embodiment of the present disclosure, the output end of the over-temperature alarm device may be connected to the enable end of the lifting control device. The over-temperature alarm device may further be used to generate an over-temperature alarm signal and output it to the enable end of the lifting control device when the vehicle message related to overheating of the window motor indicates that the window motor is overheated, so as to disable the lifting control device.

[0034] When the window motor is overheated, the vehicle will control the motor to stop and will no longer be controlled by an external control signal. At this time, if the tester still operates the lifting control device of the master controller, the expected lifting of the window will not be achieved, which may affect the test results. Therefore, connecting the output end of the over-temperature alarm device to the enable end of the lifting control device can effectively prevent the above situation from occurring, avoid misoperation, and improve the test accuracy.

[0035] As an embodiment of the present disclosure, the over-temperature alarm device may further include a CAN diagnostic instrument and a triode. Among them, the fifth pin of the CAN diagnostic instrument is coupled to the base of the triode, the collector of the triode is coupled to the enable terminal of the lifting control device, and the emitter of the triode is coupled to the ground. When the CAN diagnostic instrument determines that a vehicle message related to the overheating of the window motor indicates that the window motor is overheated, it generates, for example, an overheat protection trigger signal for the window motor, outputs a high potential, and the collector and emitter of the triode are turned on. Since the emitter is grounded, the collector is also grounded at this time. The collector is coupled to the enable terminal of the lifting control device, and the grounding of the collector disables the lifting control device.

[0036] As an embodiment of the present disclosure, the alarm may include a light-emitting diode (LED). Among them, the cathode of the LED may be coupled to the collector of the triode, and the anode of the LED may be coupled to the power supply terminal. When the CAN diagnostic instrument determines that a vehicle message related to the overheating of the window motor indicates that the window motor is overheated, it outputs a high potential, and the collector and emitter of the triode are turned on. Since the emitter is grounded, the collector is also grounded at this time. The anode of the LED is connected to the power supply (for example, a 12V power supply). When the cathode is at a ground potential, the LED conducts and emits light, performing an overheat alarm for the motor. Thus, it can prompt the tester that the motor is in an overheated state and it is necessary to stop sending control commands for window lifting.

[0037] Reference Figure 5 , which shows a schematic block diagram of a window lifting control device according to another embodiment of the present disclosure.

[0038] As Figure 5 shown, the lifting control device may include a manual lifting control device. The manual lifting control device may be provided with a window opening button, a window closing button, and a signal generator. The signal generator may be used to generate a window opening signal when the window opening button is pressed and generate a window closing signal when the window closing button is pressed. The manual lifting control device can be flexibly controlled by the tester according to the test requirements to control the window.

[0039] As an embodiment of the present disclosure, the signal generator may include a signal buffer chip, and the signal buffer chip may include a first pin, a second pin, a third pin, and a fourth pin. The window opening button may include an up switch, and the window closing button may include a close switch. One end of the up switch may be coupled to the power supply terminal, and the other end of the up switch may be coupled to the first pin of the signal buffer chip. One end of the close switch may be coupled to the power supply terminal, and the other end of the close switch may be coupled to the second pin of the signal buffer chip. The third pin and the fourth pin of the signal buffer chip may be coupled to the main optical fiber transmitting device. The third pin of the signal buffer chip may output a window opening signal to the main optical fiber transmitting device, and the fourth pin of the signal buffer chip may output a window closing signal to the main optical fiber transmitting device.

[0040] As Figure 5 shown, the lifting control device may include an automatic lifting control device, and the automatic lifting control device may be configured to generate a window opening signal and a window closing signal according to a predetermined timing sequence.

[0041] As an embodiment of the present disclosure, the automatic lifting control device may include a switch main control chip and a power switch. The switch main control chip may, for example, use the open-source hardware Arduino to generate pulse signals with a specific frequency and a specific duty cycle. The switch main control chip may include a first pin and a second pin coupled to the main optical fiber transmitting device. A predetermined timing sequence for generating a window opening signal and a window closing signal may be set in the switch main control chip. The window opening signal may be output to the main optical fiber transmitting device by the first pin, and the window closing signal may be output to the main optical fiber transmitting device by the second pin.

[0042] The automatic lifting device can match the window opening and closing times, so that it can output the window opening signal and the window closing signal automatically and periodically according to the test requirements, and realize the automatic control of the window motor operation.

[0043] It should be noted that although Figure 5 both the manual lifting control device and the automatic lifting control device are shown, in practice, one or both of them can be selected according to specific requirements.

[0044] As an embodiment of the present disclosure, the lifting drive device may include a first relay, a second relay, a first resistor, and a second resistor. The motor controller may include a window opening switch and a window closing switch. The trigger control pins of the first relay and the second relay may both be coupled to the optical fiber receiving device, and may be respectively used to receive a window opening signal and a window closing signal delivered by the optical fiber receiving device. One end of the first relay may be coupled to the window opening switch, and the other end may be coupled to one end of the first resistor. One end of the second relay may be coupled to the window closing switch, and the other end may be coupled to one end of the second resistor.

[0045] The other ends of the first resistor and the second resistor may be coupled to ground.

[0046] For illustrative purposes, the foregoing description of the embodiments of the present disclosure has been given, which is not exhaustive and is not intended to limit the present disclosure to the exact forms disclosed. Those skilled in the art will understand that various changes can be made without departing from the scope of the present disclosure, and the elements therein can be replaced with equivalents. Additionally, many modifications can be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the basic scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the particular embodiments disclosed as the best mode contemplated for carrying out the present disclosure, and the present disclosure will include all embodiments falling within the scope of the appended claims.

Claims

1. A window lifting control device, characterized in that, The window lifting control device is applicable to the electromagnetic compatibility test of a vehicle. The window lifting control device includes a main controller, a slave controller, and an optical fiber. The main controller is arranged outside the anechoic chamber for the electromagnetic compatibility test, the slave controller is arranged inside the anechoic chamber, and the main controller and the slave controller are connected through the optical fiber. The main controller includes a lifting control device and a main optical fiber transmitting device connected to each other, and an over-temperature alarm device and a main optical fiber receiving device connected to each other. Among them, the main optical fiber transmitting device is connected to the optical fiber, and among them, The lifting control device is used to generate a window opening signal and a window closing signal; The main optical fiber transmitting device is used to transmit the window opening signal and the window closing signal generated by the lifting control device through the optical fiber; The main optical fiber receiving device is used to receive, through the optical fiber, a vehicle message related to overheating of the window motor sent by the slave optical fiber transmitting device; The over-temperature alarm device includes an alarm. The over-temperature alarm device is used to drive the alarm to perform an alarm when the vehicle message related to overheating of the window motor indicates overheating of the window motor. The slave controller includes a lifting driving device and a slave optical fiber receiving device connected to each other, and a controller area network signal acquisition device and a slave optical fiber transmitting device connected to each other. Among them, the slave optical fiber receiving device is connected to the optical fiber, the lifting driving device is connected to the motor controller of the window, and among them, The slave optical fiber receiving device is used to receive, through the optical fiber, the window opening signal and the window closing signal sent by the main optical fiber transmitting device and deliver them to the lifting driving device; The lifting driving device is used to drive the motor controller according to the window opening signal or the window closing signal; The controller area network signal acquisition device and the vehicle's on-vehicle gateway are connected through a controller area network bus, and are used to collect, from the on-vehicle gateway, a vehicle message related to overheating of the window motor by real-time collecting vehicle message information; The slave optical fiber transmitting device is used to transmit, through the optical fiber, the vehicle message related to overheating of the window motor.

2. The window lifting control device according to claim 1, characterized in that, The output end of the over-temperature alarm device is connected to the enable end of the lifting control device, and, The over-temperature alarm device is further used to generate an over-temperature alarm signal and output it to the enable end of the lifting control device when the vehicle message related to overheating of the window motor indicates overheating of the window motor, so that the lifting control device is disabled.

3. The window lifting control device according to claim 2, characterized in that The over-temperature alarm device further includes a controller area network diagnostic instrument and a triode. Among them, The fifth pin of the controller area network diagnostic instrument is coupled to the base of the triode, the collector of the triode is coupled to the enable end of the lifting control device, and the emitter of the triode is coupled to the ground.

4. The window lift control device according to claim 3, wherein The alarm includes a light-emitting diode. Among them, the cathode of the light-emitting diode is coupled to the collector of the triode, and the anode of the light-emitting diode is coupled to the power supply terminal.

5. The window lift control device according to claim 1, characterized in that The lifting control device includes a manual lifting control device, which is provided with a window opening button, a window closing button and a signal generator. The signal generator is used to generate the window opening signal when the window opening button is pressed, and generate the window closing signal when the window closing button is pressed.

6. The window lift control device according to claim 5, characterized in that, The signal generator includes a signal buffer chip, and the signal buffer chip includes a first pin, a second pin, a third pin and a fourth pin. The window opening button includes a rising switch, and the window closing button includes a closing switch. One end of the rising switch is coupled to the power supply terminal, and the other end of the rising switch is coupled to the first pin of the signal buffer chip. One end of the closing switch is coupled to the power supply terminal, and the other end of the closing switch is coupled to the second pin of the signal buffer chip. The third pin and the fourth pin of the signal buffer chip are coupled to the main optical fiber transmitting device. The third pin of the signal buffer chip outputs the window opening signal to the main optical fiber transmitting device, and the fourth pin of the signal buffer chip outputs the window closing signal to the main optical fiber transmitting device.

7. The window lift control device according to claim 1, characterized in that The lifting control device includes an automatic lifting control device, which is used to generate the window opening signal and the window closing signal according to a predetermined timing sequence.

8. The window lift control device according to claim 7, wherein, The automatic lifting control device includes a switch main control chip and a power switch. Among them, The switch main control chip includes a first pin and a second pin coupled to the main optical fiber transmitting device. A predetermined timing sequence for generating the window opening signal and the window closing signal is set in the switch main control chip. The window opening signal is output from the first pin to the main optical fiber transmitting device, and the window closing signal is output from the second pin to the main optical fiber transmitting device.

9. The window lift control device according to claim 1, characterized in that, The lifting drive device includes a first relay, a second relay, a first resistor and a second resistor. The motor controller includes a window opening switch and a window closing switch. Among them, The trigger control pins of the first relay and the second relay are both coupled to the slave optical fiber receiving device, and are respectively used to receive the window opening signal and the window closing signal delivered by the slave optical fiber receiving device. One end of the first relay is coupled to the window opening switch, and the other end is coupled to one end of the first resistor. One end of the second relay is coupled to the window closing switch, and the other end is coupled to one end of the second resistor. The other ends of the first resistor and the second resistor are coupled to the ground.

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