WO2024229657A1 - 后视镜的调节装置、后视镜组件、交通工具和后视镜的调节方法 - Google Patents

后视镜的调节装置、后视镜组件、交通工具和后视镜的调节方法 Download PDF

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Publication number
WO2024229657A1
WO2024229657A1 PCT/CN2023/092796 CN2023092796W WO2024229657A1 WO 2024229657 A1 WO2024229657 A1 WO 2024229657A1 CN 2023092796 W CN2023092796 W CN 2023092796W WO 2024229657 A1 WO2024229657 A1 WO 2024229657A1
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WO
WIPO (PCT)
Prior art keywords
adjustment
motor
gear
rearview mirror
mirror
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/092796
Other languages
English (en)
French (fr)
Inventor
张宇超
曹康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN202380013140.XA priority Critical patent/CN120239667A/zh
Priority to EP23935986.2A priority patent/EP4711206A1/en
Priority to PCT/CN2023/092796 priority patent/WO2024229657A1/zh
Publication of WO2024229657A1 publication Critical patent/WO2024229657A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02Rear-view mirror arrangements
    • B60R1/06Rear-view mirror arrangements mounted on vehicle exterior
    • B60R1/062Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
    • B60R1/07Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02Rear-view mirror arrangements
    • B60R1/06Rear-view mirror arrangements mounted on vehicle exterior
    • B60R1/062Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
    • B60R1/07Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
    • B60R1/072Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators for adjusting the mirror relative to its housing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02Rear-view mirror arrangements
    • B60R1/06Rear-view mirror arrangements mounted on vehicle exterior
    • B60R1/062Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
    • B60R1/07Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
    • B60R1/074Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators for retracting the mirror arrangements to a non-use position alongside the vehicle

Definitions

  • the present disclosure relates to the field of vehicles, and more particularly to an adjusting device for a rearview mirror, a rearview mirror assembly, a vehicle, and an adjusting method for a rearview mirror.
  • the rearview mirror of a vehicle is an important component. It can provide the driver with a field of view related to the vehicle's surrounding environment and objects, and is an indispensable factor in ensuring safe driving of the vehicle. If the field of view provided by the rearview mirror of the vehicle is not good, the driver's driving control will be affected, which in turn affects driving safety.
  • the rearview mirror is usually adjusted by operating the knobs in the vehicle or the operating interface on the center console. When the user operates these knobs or operating interfaces, the mirror surface of the rearview mirror will rotate around a certain axis, thereby presenting different fields of view to the driver.
  • embodiments of the present disclosure provide a rearview mirror adjustment device, a rearview mirror assembly, a vehicle, and a rearview mirror adjustment method.
  • an adjustment device for a rearview mirror includes a mirror surface and a bracket supporting the mirror surface.
  • the adjustment device includes an input receiving module, a motor, a control module, and a position feedback module.
  • the input receiving module is configured to receive at least one of a first input representing adjustment of the mirror surface and a second input representing adjustment of the bracket.
  • the motor is configured to drive the mirror surface and the bracket to rotate together.
  • the control module is coupled to the input receiving module and the motor, and is configured to drive the motor to rotate in response to the at least one input.
  • the position feedback module is coupled to the motor and is configured to: output first data to the control module in response to the motor rotating a predetermined angle based on the first input; and output second data different from the first data to the control module in response to the motor rotating the predetermined angle based on the second input.
  • the position feedback module distinguishes between the adjustment of the mirror and the bracket, thereby applying different adjustment precisions to the mirror adjustment and the bracket adjustment.
  • High-precision adjustment of the mirror is achieved without changing the recognition precision of the controller. Therefore, under the same precision condition, the cost of the rearview mirror module can be reduced, thereby reducing the cost of the vehicle.
  • the position feedback module includes a sliding rheostat, which includes a resistance adjustment area and a slider.
  • the resistance adjustment area includes a first area and a second area adjacent to each other.
  • the slider is configured to slide on the resistance adjustment area.
  • the slider is also configured to: output the first data to the control module in response to the slider sliding a predetermined distance on the first area, and output the second data to the control module in response to the slider sliding the predetermined distance on the second area. In this way, different adjustment accuracies can be achieved for mirror adjustment and bracket adjustment.
  • the first region has a greater resistance density than the second region. Since different resistance densities are set in the sliding rheostat, when the slider moves the same distance, the signal output to the control module will feedback different voltage changes. In this way, when the slider slides on the first region, the resistance signal output to the control module can have a higher precision, and when the slider slides on the second region, the resistance signal output to the control module has a lower precision, thereby giving a higher precision to the mirror adjustment and improving the accuracy of the mirror adjustment.
  • the first region and the second region are made of different materials. In this way, the first region and the second region can be designed to reflect different resistance values when the slider slides thereon.
  • the resistance adjustment area further includes a third area, wherein the first area is located between the second area and the third area, and the third area is configured to output third data different from the first data to the control module in response to the slider sliding the predetermined distance on the third area.
  • the third region has a smaller resistance density than the first region.
  • the first region with a higher resistance density is arranged in the middle and the second region and the third region with a lower resistance density are arranged on both sides, which can well correspond to the adjustment of the rearview mirror, thereby ensuring a good driving field of view for the driver.
  • the position feedback module includes a signal transmitting unit, a signal receiving unit, and a gear.
  • the signal transmitting unit is configured to transmit a signal.
  • the signal receiving unit is configured to receive the signal.
  • the gear is coupled to the motor and includes a plurality of teeth, the gear is disposed between the signal transmitting unit and the signal receiving unit, and is configured so that the signal can be blocked by the plurality of teeth of the gear, or pass through the tooth gap between the plurality of teeth to reach the signal receiving unit.
  • the gear includes a first gear section and a second gear section, the first gear section having a gear tooth size and/or tooth gap size different from that of the second gear section. In this way, a change in the duty cycle of the signal transmitted between the signal transmitting unit and the signal receiving unit can be caused, so that the position feedback module can achieve different precision adjustments for the mirror and the bracket.
  • the signal includes a laser signal or an infrared signal. In this way, the signal can be transmitted between the signal transmitting unit and the signal receiving unit in a cost-controlled and performance-stable manner.
  • the position feedback module includes a gear and a sensor.
  • the gear is coupled to the motor and includes a first gear section and a second gear section, the first gear section having a gear tooth size and/or a tooth gap size different from that of the second gear section.
  • the sensor is disposed near the gear and is configured to sense a signal reflecting the gear tooth size and/or the tooth gap size of the first gear section and the second gear section, and transmit the corresponding signal to the control module. In this way, the distinction of accuracy can be achieved in a variety of ways, increasing the scope of application of the embodiments of the present disclosure.
  • control module is further configured to determine whether to stop the motor based on a signal indicating the position of the motor transmitted by the position feedback module. In this way, precise control of the rearview mirror can be achieved.
  • a rearview mirror assembly which comprises a mirror surface, a bracket supporting the mirror surface, and an adjustment device according to the first aspect of the present disclosure.
  • a vehicle comprising a rearview mirror assembly according to the second aspect of the present disclosure.
  • a method for adjusting a rearview mirror includes a mirror surface and a bracket supporting the mirror surface, and the method includes: receiving at least one of a first input indicating adjustment of the mirror surface and a second input indicating adjustment of the bracket; in response to the at least one input, driving a motor to rotate, wherein the motor is configured to drive the mirror surface and the bracket to rotate together; in response to the motor rotating a predetermined angle based on the first input, outputting first data; and in response to the motor rotating the predetermined angle based on the second input, outputting second data different from the first data.
  • FIG1 shows a schematic usage environment to which the solution according to the exemplary embodiments of the present disclosure may be applied
  • FIG2 shows an adjusting device for adjusting a rearview mirror according to an exemplary embodiment of the present disclosure
  • FIG3 shows a possible embodiment of a position feedback module in an adjustment device according to an exemplary embodiment of the present disclosure
  • FIG4 shows another possible embodiment of a position feedback module in an adjustment device according to an exemplary embodiment of the present disclosure.
  • FIG. 5 shows a method for adjusting a rearview mirror according to an embodiment of the present disclosure.
  • the rearview mirror assembly of a vehicle generally includes a mirror surface and a bracket.
  • the traditional rearview mirror is divided into two parts: bracket adjustment and mirror surface adjustment.
  • bracket adjustment part it mainly realizes the function of folding and unfolding the rearview mirror bracket, which requires adjustment through a horizontal motor set on the horizontal plane to control the folding and unfolding of the rearview mirror bracket.
  • mirror surface adjustment part the traditional method is to set a horizontal motor and a vertical motor on the horizontal plane and the vertical plane respectively for motion control, so as to adjust the rotation and pitch of the mirror surface respectively.
  • this rearview mirror requires a total of three motors, which is not only complex in structure and high in cost, but also difficult to achieve miniaturization of the rearview mirror assembly.
  • the traditional solution also proposes a frameless rearview mirror.
  • This rearview mirror is small in size, not only has a more beautiful appearance, but also because it brings less wind resistance, it is particularly suitable for electric vehicles and can increase the range of electric vehicles.
  • the horizontal motor used for mirror adjustment and the horizontal motor used for bracket adjustment are usually integrated together, and the same motor is used to achieve both functions at the same time.
  • the rotation amplitude of the rearview mirror bracket obviously needs to be greater than the rotation amplitude of the mirror adjustment, and the angle control accuracy required for the mirror adjustment is obviously much higher than the angle control accuracy required for the folding and unfolding of the rearview mirror bracket. Therefore, in the design where the horizontal rotation adjustment of the mirror adjustment and the rearview mirror adjustment share the same horizontal rotation motor, when the associated control circuit and feedback circuit are also the same, sharing the same set of horizontal adjustment mechanisms will significantly reduce the angle control accuracy of the mirror adjustment.
  • the embodiments of the present disclosure are A rearview mirror adjustment solution. Some exemplary embodiments according to the present disclosure are described below in conjunction with FIGS. 1 to 5 .
  • Vehicle can take various forms.
  • the vehicle can be various forms of vehicles, such as electric vehicles, fuel vehicles, or hybrid vehicles.
  • the vehicle can be a car, a truck, a trailer, a motorcycle, a bus, an agricultural vehicle, a recreational vehicle, or a construction vehicle, etc.
  • the vehicle can be a household vehicle, an operational passenger vehicle, or an operational freight vehicle, etc.
  • the vehicle is a vehicle equipped with a certain automatic driving capability, wherein the automatic driving capability may include but is not limited to assisted driving capability, semi-automatic driving capability, highly automatic driving capability, or fully automatic driving capability.
  • the vehicle can also be various forms of aircraft, such as passenger aircraft, cargo aircraft, etc.
  • the vehicle can also take the form of, for example, a ship, a train, etc. The present disclosure does not specifically limit the specific form of the vehicle.
  • the vehicle 1 includes a rearview mirror 3 disposed on the vehicle body so that the driver of the vehicle 1 can observe the surrounding environment through the rearview mirror 3.
  • the vehicle 1 may also include another rearview mirror 3 not shown.
  • the vehicle 1 may also include other numbers of rearview mirrors 3.
  • the rearview mirror 3 may be a rearview mirror disposed outside the vehicle 1 as shown in FIG. 1 , or a rearview mirror disposed inside the vehicle.
  • the vehicle 1 also includes an adjustment device (not shown) for adjusting the rotation angle of the rearview mirror 3.
  • FIG2 shows an adjusting device 2 for adjusting a rearview mirror 3 according to an exemplary embodiment of the present disclosure.
  • the rearview mirror 3 generally includes a mirror surface and a bracket supporting the mirror surface.
  • the bracket and the mirror surface are integral and can be adjusted together.
  • the adjustment of the rearview mirror 3 can be achieved by two motors, wherein the vertical motor is used to adjust the vertical rotational movement of the mirror surface and the bracket (i.e., the pitch of the mirror surface and the bracket), and the horizontal motor is used to adjust the horizontal rotational movement of the mirror surface (i.e., the angle adjustment of the mirror surface) and the horizontal rotational movement of the bracket (i.e., the folding and unfolding of the bracket).
  • the vertical motor and the horizontal motor are two independently arranged motors. Through the joint adjustment of the two motors, the bracket together with the mirror surface can be adjusted to a suitable angle for the driver.
  • the embodiments of the present disclosure mainly relate to the adjustment of the horizontal motor.
  • the device 2 includes an input receiving module 21.
  • the input receiving module 21 can be used to receive a first input 211 representing the adjustment of the mirror.
  • the first input 211 can be input by a user through a button or knob set inside the vehicle (for example, the inside of the door), or it can be input by a user by operating an operation interface set on the screen of the center console.
  • the input receiving module 21 can also be used to receive a second input 212 representing the adjustment bracket. Similar to the first input 211, the second input 212 can be input by a user through a button or knob set inside the vehicle, or it can be input by a user by operating an operation interface set on the screen of the center console.
  • the input receiving module 21 can also be used to simultaneously receive the first input 211 representing the adjustment of the mirror and the second input 212 representing the adjustment bracket.
  • the adjusting device 2 further includes a motor 22.
  • the motor 22 can rotate forward and reverse, and is used to drive the mirror surface and the bracket to rotate in both directions.
  • the motor 22 can be a horizontal motor in a rearview mirror assembly, and is used to control the bidirectional adjustment of the angle of the mirror surface, and the folding and unfolding of the bracket.
  • the embodiments of the present disclosure do not particularly limit the specific type of the motor 22.
  • the adjustment device 2 further includes a control module 23 and a position feedback module 24 coupled to the control module 23.
  • the control module 23 is coupled to the input receiving module 21 and the motor 22.
  • the control module 23 can drive the motor 22 to rotate bidirectionally according to the first input 211 and/or the second input 212 received from the input receiving module 21.
  • the control module 23 can be integrated into the vehicle body controller or can be a separate control module 23 for the rearview mirror. The embodiments do not impose any particular restrictions on this.
  • the position feedback module 24 is coupled to the motor 22, and the position feedback module 24 can obtain the amount of rotation of the motor 22.
  • the amount of rotation of the motor 22 is associated with the current position of the mirror surface and the bracket of the rearview mirror (i.e., the angle of rotation), and the position feedback module 24 can feedback the position to the control module 23 through a signal.
  • the control module 23 can identify the signal from the position feedback module 24, and perform logical judgment based on the signal to determine when the motor 22 stops.
  • the control module 23 can control the motor 22 to stop at a predetermined position, so that the rearview mirror 3 can be adjusted to a predetermined angle, thereby adjusting the rearview mirror 3.
  • the signal fed back to the control module 23 by the position feedback module 24 can be a voltage signal.
  • such a signal can be a resistance signal.
  • the signal can also be a current signal, and the specific signal form is not limited by the embodiments of the present disclosure.
  • the control module 23 has a certain recognition accuracy, and only signals that meet the corresponding recognition accuracy can be accurately recognized by the control module 23. For example, when the minimum change in the voltage signal that the control module 23 can recognize is 0.05V, if the actual change is 0.50V or 1.00V, the recognition of the change will be accurate. If the actual change is 0.51V or 1.03V, it can only be approximately recognized as 0.50V or 1.00V due to the limitation of accuracy, resulting in the recognition result not being completely accurate. Therefore, when the minimum change to be recognized is 0.05V, only when the amplitude of the voltage change is 0.05V or an integer multiple thereof can it be accurately recognized, and the recognition of other changes is only approximately accurate.
  • an existing solution is to improve the recognition accuracy of the control module 23, for example, to improve its recognition accuracy from 0.05V to 0.01V.
  • This design can improve the recognition accuracy, the cost is relatively high.
  • the embodiment of the present disclosure does not change the recognition accuracy of the control module 23, but focuses on the position feedback module 24.
  • the recognition accuracy remains unchanged, by making the physical quantity (such as displacement or angle) of the position feedback module 24 corresponding to the recognition accuracy smaller, it is possible to identify a smaller change in the position feedback module 24, so that the rearview mirror 3 can also be adjusted with higher accuracy.
  • the feedback of the position feedback module 24 for the mirror adjustment and the bracket adjustment is different.
  • the position feedback module 24 distinguishes the adjustment of the mirror and the bracket, thereby applying different adjustment accuracies to the mirror adjustment and the bracket adjustment, thereby achieving accurate adjustment of the rearview mirror 3 through reasonable accuracy allocation without increasing the cost of the control module 23.
  • the position feedback module 24 can output first data to the control module 23.
  • the position feedback module 24 will output second data different from the first data to the control module 23. That is, for the same motor rotation angle ⁇ , based on whether it is the first input 211 for mirror adjustment or the second input 212 for bracket adjustment, the position feedback module 24 can output different values, i.e., reflect different adjustment accuracies.
  • the position feedback module 24 can take a variety of different specific forms, which will be described in detail below.
  • the rearview mirror 3 of the vehicle 1 is in a fully retracted position when it is parked. If the vehicle 1 needs to be driven at this time, the user will operate the knob of the vehicle 1 or the screen on the center console to unfold the bracket and mirror surface of the rearview mirror 3. Since the rearview mirror has just been unfolded from the fully retracted position and is not in the effective working angle range, the user's requirements for the angle adjustment accuracy are not high in the initial adjustment. At this time, the rotation amplitude of the rearview mirror 3 can be larger, so that the rearview mirror 3 can be rotated from the fully retracted position to the effective working angle range more quickly.
  • the rotation amplitude of the rearview mirror 3 will become smaller.
  • the specially designed position feedback module 24 can distinguish between the rearview mirror bracket adjustment and the mirror adjustment, so that when the user adjusts the rearview mirror 3, the bracket adjustment and the mirror adjustment can have different adjustment precisions. High-precision adjustment of the mirror surface.
  • FIG3 shows a feasible embodiment of a position feedback module 24 in an adjustment device according to an exemplary embodiment of the present disclosure.
  • the position feedback module 24 includes a sliding rheostat 241.
  • the sliding rheostat 241 includes a resistance adjustment area 242 and a slider 243 that can slide on the resistance adjustment area 242.
  • the slider 243 can be coupled to the motor 22 so that the rotation of the motor 22 drives the slider 243 to slide on the resistance adjustment area 242.
  • the resistance adjustment area 242 includes adjacent first areas S1 and second areas S2.
  • the first area S1 and the second area S2 are designed to reflect different resistance values to the control module 23 when the slider 243 slides thereon, so that the control module 23 can have different adjustment accuracies for mirror adjustment and bracket adjustment.
  • the first area S1 and the second area S2 may have different resistance densities, for example, the resistance density of the first area S1 is higher than the resistance density of the second area S2, so that when the slider 243 slides the same predetermined distance, different first data and second data can be outputted respectively on the first area S1 and the second area S2, thereby feeding back different voltage changes.
  • the slider 243 slides on the first area S1
  • due to the higher resistance density of the first area S1 when the slider 243 slides a certain distance D, a larger change of the feedback signal can be generated in the circuit connected to the sliding rheostat 241, and the resistance signal output to the control module 23 can have a higher precision, which corresponds to the mirror adjustment of the rearview mirror.
  • first area S1 and the second area S2 may be made of different materials. It should be noted that other solutions can be envisioned to design the first area S1 and the second area S2 to reflect different resistance values when the slider 243 slides thereon, and the embodiments of the present disclosure do not impose any particular limitation on this.
  • the resistance adjustment area 242 of the position feedback module 24 is divided according to the bracket adjustment and mirror adjustment of the rearview mirror 3, and position feedback circuits with different precisions are used for different parts, so as to achieve high-precision adjustment of the mirror horizontal direction when the mirror adjustment of the rearview mirror 3 and the bracket adjustment of the rearview mirror share a motor.
  • the resistance adjustment area 242 also includes a third area S3, wherein the first area S1 is located between the second area S2 and the third area S3.
  • the third area S3 is configured to output third data different from the first data to the control module 23 in response to the slider sliding a predetermined distance on the third area.
  • the resistance density of the third area S3 is lower than the resistance density of the first area S1.
  • the mirror adjustment that requires precise adjustment is often located in the middle of the adjustment process, while the bracket adjustment with lower precision requirements is located at both ends of the adjustment range (i.e., the early and late stages). Therefore, the first area S1 with higher resistance density is set in the middle and the second area S2 and the third area S3 with lower resistance density are set on both sides, which can correspond well to the adjustment of the rearview mirror, thereby ensuring that a good driving vision is provided for the driver.
  • the accuracy ratio of mirror adjustment to bracket adjustment can be adjusted by adjusting the resistance distribution between each area S1, S2, and S3.
  • the accuracy of mirror adjustment can be 2.8 times the accuracy of bracket adjustment.
  • the ranges of each area S1, S2, and S3 in the resistance adjustment area shown in Figure 3 are only schematic and not restrictive. According to actual needs, the ranges of these areas can be adjusted accordingly. The specific range is not limited by the embodiments of the present disclosure.
  • the control module 23 drives the motor 22 to rotate in both directions, thereby driving the rearview mirror surface and the bracket to rotate together.
  • the position change of the motor 22 triggers the change in the resistance value of the sliding rheostat 241 in the position feedback module 24.
  • the control module 23 can identify the change in the position based on the signal indicating the position of the motor 22 transmitted by the position feedback module 24, and control the motor 22 to stop and prompt the user when necessary.
  • FIG. 4 shows another feasible embodiment of the position feedback module 24 in the regulating device according to the exemplary embodiment of the present disclosure.
  • the position feedback module 24 includes a signal transmitting unit 245 for transmitting a signal, a signal receiving unit 246 for receiving the signal, and a gear 247 arranged between the signal transmitting unit 245 and the signal receiving unit 246.
  • the gear 247 has a plurality of teeth, and the signal transmission between the signal transmitting unit 245 and the signal receiving unit 246 is affected by these teeth.
  • the signal transmission path between the signal transmitting unit 245 and the signal receiving unit 246 can be arranged near the rim of the gear 247, so that when the signal is blocked by the teeth of the gear 247, the signal transmission between the signal transmitting unit 245 and the signal receiving unit 246 is interrupted, so that the signal receiving unit 246 cannot receive the signal from the signal transmitting unit 245; or as the gear 247 rotates, when the signal passes through the tooth gap between the teeth of the gear 247, the signal can smoothly reach the signal receiving unit 246.
  • the signals received by the signal receiving unit 246 are intermittent signals, and the duty cycle of these signals is affected by the gear tooth size and/or tooth gap size of the gear 247.
  • the gear tooth size here may include parameters such as the gear tooth pitch, tooth thickness, tooth height, tooth top height, tooth root height, etc.
  • the tooth gap size here may refer to the gap between adjacent gears.
  • the gear teeth on the gear 247 are not equidistant.
  • the gear 247 may include a first gear segment 2471 and a second gear segment 2472 that are adjacent.
  • the tooth gap size of the first gear segment 2471 may be different from the tooth gap size of the second gear segment 2472.
  • the first gear segment 2471 has a smaller tooth gap size
  • the second gear segment 2472 has a relatively larger tooth gap size.
  • the tooth size of the first gear segment 2471 may be different from the tooth size of the second gear segment 2472. According to this configuration, similar to the difference in tooth gap size described above, the difference in gear tooth size will also cause a change in the duty cycle of the signal transmitted between the signal transmitting unit 245 and the signal receiving unit 246, thereby enabling the position feedback module 24 to achieve different precision adjustments for the mirror and the bracket.
  • the gear 247 may also be provided with a third gear section 2473, which is located on the side of the first gear section 2471 opposite to the second gear section 2472, so that the first gear section 2471 is located between the second gear section 2472 and the third gear section 2473.
  • the first gear section 2471 may have a denser gear distribution than the other two sections, because when the rearview mirror 3 is gradually unfolded from the fully retracted position, within the entire travel range, the required precision for adjusting the brackets of the front and rear sections is relatively low, while the mirror adjustment of the middle section requires relatively high precision.
  • the signal may be a laser signal. In other embodiments, the signal may be an infrared signal.
  • this is merely illustrative, and other types of signals are also feasible, which can be adjusted according to specific usage environments and design requirements, and such embodiments also fall within the scope of the present disclosure.
  • the position feedback module 24 may also include sensors disposed near the gear 247, which may sense signals reflecting the gear tooth size and/or tooth gap size of the first gear section 2471 and the second gear section 2472, and transmit the corresponding signals to the control module 23.
  • sensors may be Hall sensors. Hall sensors are sensitive to magnetic fields and can therefore sense the positive and negative poles of the magnetic field. A positive and negative change in the magnetic field forms a pulse, and the number of pulses is used to calculate the stroke, so position feedback with different accuracies can be achieved through the gap density of different gears.
  • the position feedback module 24 Some specific embodiments of the position feedback module 24 are described in detail above. It should be noted that, of course, the detailed schemes listed here are only exemplary and not restrictive. The specific schemes are not limited by the embodiments of the present disclosure. In other embodiments, the position feedback module 24 may also be other chips or circuits with feedback functions. Other forms of the position feedback module 24 not listed herein are contemplated, as long as they can achieve differentiated feedback of the position of the motor 22 to the control module 23 .
  • the present disclosure also relates to a rearview mirror assembly.
  • the rearview mirror assembly includes a mirror surface, a bracket supporting the mirror surface, and the adjustment device 2 described above for adjusting the rearview mirror.
  • the present disclosure also relates to a vehicle 3.
  • the vehicle includes the rearview mirror assembly described above.
  • the vehicle can take various forms, and the embodiments of the present disclosure do not particularly limit this.
  • the present disclosure also relates to a method for adjusting a rearview mirror, as shown in FIG5 , which shows an adjustment method 500 according to an embodiment of the present disclosure.
  • a first input 211 representing the adjustment of the mirror and a second input 212 representing the adjustment of the bracket is received.
  • the motor 22 in response to at least one input, the motor 22 is driven to rotate, wherein the motor 22 is configured to drive the mirror and the bracket to rotate together.
  • first data is output.
  • second data different from the first data is output.
  • the method 500 described herein can be used in conjunction with the device 2 described above for adjusting the rearview mirror 3, and the specific details of the device 2 can also be used in conjunction with the method 500 described herein. For the purpose of brevity, further details of the method are not described here.
  • the embodiment of the present disclosure sets a higher adjustment accuracy for the area relative to the mirror adjustment and sets a relatively lower adjustment accuracy for the area relative to the bracket adjustment, thereby achieving high-precision adjustment of the mirror surface of the rearview mirror 3 without changing the recognition accuracy of the controller.
  • the cost of the rearview mirror module can be reduced, thereby reducing the cost of the vehicle.
  • embodiments of the present disclosure do not impose any particular restrictions on the type of rearview mirror.
  • the embodiments of the present disclosure can be applied to both traditional rearview mirrors with frames and rearview mirrors without frames.

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  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

一种后视镜(3)的调节装置(2),包括镜面、支架、输入接收模块(21)、电机(22)、控制模块(23)和位置反馈模块(24),输入接收模块(21)接收表示调节镜面的第一输入(211)和表示调节支架的第二输入(212)中的至少一者,电机(22)驱动镜面和支架共同转动,控制模块(23)耦接至输入接收模块(21)和电机(22)并响应于至少一个输入驱动电机(22)转动,位置反馈模块(24)耦接至电机(22)并响应于电机(22)基于第一输入(211)转动预定角度,向控制模块(23)输出第一数据;以及响应于电机(22)基于第二输入(212)转动该预定角度,输出不同于第一数据的第二数据。该调节装置对镜面与支架的调节施加不同调节精度,在不改变控制器识别精度的情况下,实现镜面的高精度调节。还包括一种后视镜组件、交通工具和后视镜的调节方法。

Description

后视镜的调节装置、后视镜组件、交通工具和后视镜的调节方法 技术领域
本公开涉及车辆领域,更具体地涉及一种后视镜的调节装置、一种后视镜组件、一种交通工具和一种后视镜的调节方法。
背景技术
随着车辆的普及,人们开始逐步关注车辆的智能化操控。车辆的后视镜是一个重要的部件,它可以为驾驶员提供与车辆周围环境和物体相关的视野,是确保车辆安全驾驶必不可少的因素。如果车辆的后视镜提供的视野不佳,则驾驶员的驾驶操控会受到影响,进而影响行车安全。后视镜通常是通过操作车辆内的旋钮或者中控台上的操作界面来进行调节的。通过用户操作这些旋钮或操作界面,后视镜的镜面会绕着一定的轴线发生转动,从而为驾驶员呈现不同的视野。有些现有技术可以通过电动方式对后视镜进行调节,但调节的精度不高,因此依然存在许多不足。如何让使用者更加方便和精确地调节车辆的后视镜,是设计者面临的一项挑战。
发明内容
为了以更加合理的方式调节车辆的后视镜的视野,本公开的实施例提供了一种后视镜的调节装置、一种后视镜组件、一种车辆和一种后视镜的调节方法。
在本公开的第一方面,提供了一种后视镜的调节装置。该后视镜包括镜面和支撑该镜面的支架。该调节装置包括输入接收模块、电机、控制模块以及位置反馈模块。该输入接收模块被配置为接收表示调节该镜面的第一输入和表示调节该支架的第二输入中的至少一个输入。该电机被配置为驱动该镜面和该支架共同转动。该控制模块耦接至该输入接收模块和该电机,并且被配置为响应于该至少一个输入驱动该电机转动。该位置反馈模块耦接至该电机并且被配置为:响应于该电机基于该第一输入转动预定角度,向该控制模块输出第一数据;以及响应于该电机基于该第二输入转动该预定角度,向该控制模块输出不同于该第一数据的第二数据。
根据本公开的实现方式,位置反馈模块将对镜面与支架的调节加以区分,从而对镜面调节和支架调节施加不同的调节精度。在不改变控制器识别精度的情况下,实现镜面的高精度调节。由此,在同样的精度条件下可以降低后视镜模块的成本,进而降低车辆的成本。
在一些实现方式中,该位置反馈模块包括滑动变阻器,该滑动变阻器包括阻值调节区和滑块。该阻值调节区包括相邻的第一区域和第二区域。该滑块被配置成在该阻值调节区上滑动。该滑块还被配置为:响应于该滑块在该第一区域上滑动预定距离向该控制模块输出该第一数据,以及响应于该滑块在该第二区域上滑动该预定距离向该控制模块输出该第二数据。以此方式,可以针对镜面调节和支架调节实现不同的调节精度。
在一些实现方式中,该第一区域具有比该第二区域更大的电阻密度。由于在滑动变阻器中设置了不同的电阻密度,可以使得当滑块移动相同的距离时,输出给控制模块的信号将会反馈不同的电压变化。以此方式,当滑块在第一区域上滑动时,输出给控制模块的电阻信号可以具有较高的精度,当滑块在第二区域上滑动时,输出给控制模块的电阻信号的精度较低,由此可以针对镜面调节赋予更高的精度,提高镜面调节的准确性。
在一些实现方式中,该第一区域和该第二区域由不同的材料制成。以此方式,可以使第一区域和第二区域被设计成当滑块在其上滑动时反映出不同的阻值。
在一些实现方式中,该阻值调节区还包括第三区域,其中该第一区域位于该第二区域和该第三区域之间,该第三区域被配置成响应于该滑块在该第三区域上滑动该预定距离向该控制模块输出不同于该第一数据的第三数据。以此方式,通过设置三个区域,并且使得第二区域和第三区域对应于两端的支架调节、同时使得第一区域对应于中间的镜面调节,利用这种非线性的设置,可以实现合理的精度调节区域分布。
在一些实现方式中,该第三区域具有比该第一区域更小的电阻密度。以此方式,将电阻密度较高的第一区域设置在中部而将电阻密度较低的第二区域和第三区域设置在两侧,可以很好地对应于后视镜的调节,从而确保为驾驶员提供良好的驾驶视野。
在一些实现方式中,该位置反馈模块包括信号发射部、信号接收部和齿轮。该信号发射部被配置成发射信号。该信号接收部被配置成接收该信号。该齿轮耦接至该电机并且包括多个齿,该齿轮设置在该信号发射部和该信号接收部之间,并且被配置成使得该信号能够被该齿轮的该多个齿阻挡、或者从该多个齿之间的齿隙通过以到达该信号接收部。该齿轮包括第一齿轮区段和第二齿轮区段,该第一齿轮区段具有不同于该第二齿轮区段的轮齿尺寸和/或齿隙尺寸。以此方式,可以引起在信号发射部和信号接收部之间传输的信号的占空比的变化,从而使得位置反馈模块对于镜面与支架可以实现不同的精度调节。
在一些实现方式中,该信号包括激光信号或红外线信号。以此方式,可以以成本可控且性能稳定的方式实现信号在信号发射部和信号接收部之间的传输。
在一些实现方式中,该位置反馈模块包括齿轮和传感器。该齿轮耦接至该电机并且包括第一齿轮区段和第二齿轮区段,该第一齿轮区段具有不同于该第二齿轮区段的轮齿尺寸和/或齿隙尺寸。该传感器设置在该齿轮附近,被配置成感测反映该第一齿轮区段和该第二齿轮区段的该轮齿尺寸和/或该齿隙尺寸的信号,并且将相应的该信号传递给该控制模块。以此方式,可以以多样的方式实现精度的区分,增加本公开的实施例的适用范围。
在一些实现方式中,该控制模块还被配置为:基于该位置反馈模块传递的表示该电机的位置的信号,来确定是否使该电机停止。以此方式,能够实现对后视镜的精确控制。
在本公开的第二方面,提供了一种后视镜组件。该后视镜组件包括镜面、支撑该镜面的支架、以及根据本公开的第一方面的调节装置。
在本公开的第三方面,提供了一种车辆。该车辆包括根据本公开的第二方面的后视镜组件。
在本公开的第四方面,提供了一种后视镜的调节方法。该后视镜包括镜面和支撑该镜面的支架,该方法包括:接收表示调节该镜面的第一输入和表示调节该支架的第二输入中的至少一个输入;响应于该至少一个输入,驱动电机转动,其中该电机被配置为驱动该镜面和该支架共同转动;响应于电机基于该第一输入转动预定角度,输出第一数据;以及响应于该电机基于该第二输入转动该预定角度,输出不同于该第一数据的第二数据。
本公开的这些和其它方面在以下(多个)实施例的描述中会更加简明易懂。
附图说明
结合附图并参考以下详细说明,本公开各实施例的上述和其他特征、优点及方面将变得更加明显。在附图中,相同或相似的附图标注表示相同或相似的元素。附图并不一定按比例 绘制,其中:
图1示出了可以适用根据本公开的示例性实施例的方案的一种示意性的使用环境;
图2示出了根据本公开的示例性实施例的用于调节后视镜的调节装置;
图3示出了根据本公开的示例性实施例的调节装置中的位置反馈模块的一种可行的实施例;
图4示出了根据本公开的示例性实施例的调节装置中的位置反馈模块的另一种可行的实施例;以及
图5示出了根据本公开的实施例的后视镜的调节方法。
具体实施方式
下面将参照附图更详细地描述本公开的实施例。虽然附图中显示了本公开的某些实施例,然而应当理解的是,本公开可以通过各种形式来实现,而且不应该被解释为限于这里阐述的实施例,相反提供这些实施例是为了更加透彻和完整地理解本公开。应当理解的是,本公开的附图及实施例仅用于示例性作用,并非用于限制本公开的保护范围。
在本公开的实施例的描述中,术语“包括”及其类似用语应当理解为开放性包含,即“包括但不限于”。术语“基于”应当理解为“至少部分地基于”。术语“一个实施例”或“该实施例”应当理解为“至少一个实施例”。术语“第一”、“第二”等等可以指代不同的或相同的对象。下文还可能包括其他明确的和隐含的定义。
如上面所描述的,现有的后视镜的调节仍存在不少缺陷。车辆的后视镜组件总体上包括镜面和支架。传统的后视镜分为支架调节和镜面调节两个部分。对于支架调节部分,其主要实现的是后视镜支架的折叠与展开的功能,这需要通过一个设置在水平面上的水平电机进行调节,来控制后视镜支架的折叠与展开。对于镜面调节部分,传统方式在水平面和竖直面上分别设置有水平电机与竖直电机分别进行运动控制,从而分别调节镜面的旋转和俯仰。然而,这种后视镜一共需要三个电机,不仅结构复杂,成本较高,而且难以实现后视镜组件的小型化。
传统的方案还提出了一种无边框的后视镜。这种后视镜的体积较小,不仅外形更加美观,而且由于其带来的风阻较小,特别适用于电动汽车,可以提升电动汽车的续航里程。在这种无边框的后视镜中,为减小体积,通常是将用于镜面调节的水平电机与用于支架调节的水平电机整合在一起,用同一个电机同时实现这两个功能。然而,在实际工作场景中,后视镜支架的旋转幅度明显需要大于镜面调节的旋转幅度,同时镜面调节所需要的角度控制精度明显远高于后视镜支架折叠与展开所需要的角度控制精度。因此,在镜面调节的水平旋转调节与后视镜调节共用同一个水平旋转电机的设计中,在相关联的控制电路和反馈电路也相同的情况下,共用同一套水平调节机构会明显降低镜面调节的角度控制精度。
传统方案还提出了一些方法来视图解决上面提及的镜面调节的精度较差的问题。例如,业内采用的一种解决措施是提高控制器识别精度,进而实现高精度调节。但是,这种方案并不会对镜面调节精度和后视镜直接调节精度加以区分,而是对二者统一都进行了提高。由于用户对于后视镜支架的折叠精度基本需求较低,因此该方案存在一定程度的精度浪费,导致后视镜的控制器成本较高。由于对控制器要求较高,提升了设计成本,并且还增加了控制器的选型难度。
为此,至少为了解决现有技术中存在的上述问题和/或其他潜在的问题,本公开的实施例 提供了一种后视镜的调节方案。下面结合图1至图5来相信描述根据本公开的一些示例性实施例。
首先参考图1,图1示出了本公开的实施例中交通工具的一种结构示意图,该交通工具在图中以车辆1的形式被示出。需要说明的是,在本公开的语境下,术语“交通工具”可以采用各种形式。交通工具可以是各种形式的车辆,例如电动车辆、燃油车辆,也可以是采用混合动力的车辆。在一些实施例中,车辆可以是轿车、卡车、拖车、摩托车、公交车、农用车辆、娱乐车辆或建筑车辆,等等。在一些实施例中,交通工具可以是家用车辆、运营性质的客运车辆或运营性质的货运车辆,等等。在一些实施例中,交通工具以是配备一定自动驾驶能力的车辆,其中自动驾驶能力可以包括但不限于辅助驾驶能力、半自动驾驶能力、高度自动驾驶能力或者完全自动驾驶能力。在其他实施例中,交通工具还可以是各种形式的飞行器,例如客运飞机、货运飞机,等。在其他实施例中,交通工具还可以采取例如船舶、火车等形式。本公开对于交通工具的具体形式不做特别限制。
如图1所示,车辆1包括设置在车身上的后视镜3,以便车辆1的驾驶员能够通过该后视镜3观察到周围的环境。尽管图上只显示了一个后视镜3,可以理解的是,车辆1还可以包括未示出的另一个后视镜3。在其他实施例中,车辆1还可以包括其他数目的后视镜3。此外,后视镜3既可以是图1中示出的设置在车辆1外部的后视镜,也可以是设置在车辆内部的后视镜。车辆1还包括调节装置(未示出),用于调节后视镜3的转动角度。
图2示出了根据本公开的示例性实施例的用于调节后视镜3的调节装置2。后视镜3总体上包括镜面和支撑该镜面的支架。在一些实施例中,支架与镜面是一体式的,从而可以被共同调节。后视镜3的调节可以通过两个电机来实现,其中竖直电机用于调节镜面和支架的竖直旋转运动(即镜面和支架的俯仰),而水平电机用于调节镜面的水平旋转运动(即镜面的角度调节)以及支架的水平旋转运动(即支架的折叠和展开)。竖直电机和水平电机是独立设置的两个电机。通过两个电机的共同调节,可以使支架连同镜面被调节到对于驾驶员来说合适的角度。本公开的实施例主要涉及的是水平电机的调节。
如所示出,该装置2包括输入接收模块21。在一些实施例中,该输入接收模块21可以用于接收表示调节镜面的第一输入211。第一输入211可以是用户通过设置在车辆内部(例如,车门内侧)的按钮或旋钮输入的,也可以是用户通过操作设置在中控台的屏幕上的操作界面输入的。在另一些实施例中,该输入接收模块21还可以用于接收表示调节支架的第二输入212。类似于第一输入211,第二输入212可以是用户通过设置在车辆内部的按钮或旋钮输入的,也可以是用户通过操作设置在中控台的屏幕上的操作界面输入的。在其它实施例中,该输入接收模块21还可以用于同时接收表示调节镜面的第一输入211以及表示调节支架的第二输入212。
如图2所示,调节装置2还包括电机22。电机22可以正转和反转,用于驱动镜面和支架共同双向转动。在一些实施例中,电机22可以是后视镜组件中的水平电机,用于控制镜面的角度双向调节、以及支架的折叠和展开。本公开的实施例对于电机22的具体类型不做特别限制。
如所示出,调节装置2还包括控制模块23和耦接至该控制模块23的位置反馈模块24。控制模块23耦接至输入接收模块21和电机22。控制模块23可以根据从输入接收模块21处接收的第一输入211和/或第二输入212来驱动电机22进行双向转动。需要说明的是,控制模块23既可以被集成到车身控制器上,也可以是用于后视镜的单独的控制模块23,本公开 的实施例对此不做特别限制。位置反馈模块24耦接至电机22,位置反馈模块24可以获知电机22当前所转动的量。电机22所转动的量是与后视镜的镜面和支架当前所处的位置(即所转动的角度)相关联的,位置反馈模块24能够将该位置通过信号反馈至控制模块23。控制模块23能够识别来自位置反馈模块24的信号,并且基于该信号进行逻辑判断,以确定电机22何时停止。控制模块23可以控制电机22在预定位置处停止,从而使后视镜3能够被调节到预定的角度,实现对后视镜3的调节。在一些实施例中,位置反馈模块24反馈给控制模块23的信号可以是电压信号。在另一些实施例中,这样的信号可以是电阻信号。备选地,在其他实施例中,信号还可以是电流信号,具体的信号形式不受到本公开的实施例的限制。
控制模块23具有一定的识别精度,需要符合对应识别精度的信号才可以被控制模块23准确地识别。举例来说,在控制模块23所能够识别的电压信号的最小变化量是0.05V的情况下,如果实际变化量是0.50V或者1.00V,则该变化量的识别将是准确的,如果实际变化量是0.51V或者1.03V,则由于精度的限制只能被近似识别为0.50V或者1.00V,导致识别结果不是完全准确的。因此,在识别的最小变化量为0.05V的情况下,只有当电压变化的幅度是0.05V或其整数倍的变化量才可以被准确地识别到,而其他变化量的识别只是近似准确的。
如上面所提到的,一种现有的方案是提升控制模块23的识别精度,例如将其识别精度由0.05V提升到0.01V,虽然这种设计能够提高识别精度,但成本较高。本公开的实施例不对控制模块23的识别精度进行改动,而是将改进着眼于位置反馈模块24。在识别精度不变的情况下,通过使识别精度所对应的位置反馈模块24的物理量(例如位移或角度)变小,从而能够识别到位置反馈模块24的更小幅度的变化,这样同样能够实现后视镜3的精度更高的调角度整。在本公开的实施例中,位置反馈模块24对于镜面调节和支架调节的反馈是不相同的。具体来说,位置反馈模块24将对镜面与支架的调节加以区分,从而对镜面调节和支架调节施加不同的调节精度,由此可以在无需提高控制模块23的成本的情况下,通过合理的精度分配,实现对于后视镜3的精确调节。
具体而言,根据电机22基于第一输入211转动的预定角度α,位置反馈模块24可以向控制模块23输出第一数据。根据电机22基于第二输入212转动所述预定角度α,位置反馈模块24将向控制模块23输出不同于第一数据的第二数据。也就是说,针对同样的电机转动角度α,基于其是用于镜面调节的第一输入211还是用于支架调节的第二输入212,位置反馈模块24可以输出不同的值,即体现不同的调节精度。位置反馈模块24可以采用多种不同的具体形式,这将在下文中详细描述。
在一种可能的使用场景中,车辆1在停放时的后视镜3处于完全被收纳的位置。如果此时需要驾驶该车辆1,则用户会操作车辆1的旋钮或中控台上的屏幕来使后视镜3的支架和镜面展开。由于此时的后视镜刚从完全被收纳的位置展开,并不处于有效的工作角度范围,因此在调节的初期用户对角度调节精度的要求并不高,此时的后视镜3的转动幅度可以较大,从而使后视镜3能够较快地从完全被收纳的位置转动到有效的工作角度范围内。随着后视镜3开始进入有效工作角度范围,此时用户对后视镜3的角度调节精度的要求变高,后视镜3需要被更加精确地调节,此时后视镜3的转动幅度会变得较小。
根据本公开的实施例,通过特别设计的位置反馈模块24,可以针对后视镜支架调节和镜面调节进行区分,从而使得当用户对后视镜3进行调节时,支架调节与镜面调节可以具有不同的调节精度。在无需改变控制模块23的识别精度的条件下,本公开的实施例能够实现后视 镜的镜面的高精度调节。
图3示出了根据本公开的示例性实施例的调节装置中的位置反馈模块24的一种可行的实施例。在图3所示的实施例中,位置反馈模块24包括滑动变阻器241。滑动变阻器241包括阻值调节区242和能够在阻值调节区242上滑动的滑块243。滑块243可以耦接至电机22,使得电机22的转动带动滑块243在阻值调节区242上滑动。阻值调节区242上包括相邻的第一区域S1和第二区域S2。第一区域S1和第二区域S2被设计成当滑块243在其上滑动时可以向控制模块23反映出不同的阻值,从而能够使控制模块23针对镜面调节和支架调节具有不同的调节精度。在一些实施例中,第一区域S1和第二区域S2可以具有不同的电阻密度,例如第一区域S1的电阻密度高于第二区域S2的电阻密度,从而使得滑块243滑动相同的预定距离时,在第一区域S1与第二区域S2上可以分别输出不同的第一数据和第二数据,从而反馈不同的电压变化。具体来说,当滑块243在第一区域S1上滑动时,由于第一区域S1的电阻密度较高,则当滑块243滑动一定的距离D时,可以在滑动变阻器241所连接的电路中产生反馈信号的较大变化,输出给控制模块23的电阻信号可以具有较高的精度,这对应于后视镜的镜面调节。当滑块243在第二区域S2上滑动时,由于第二区域S2的电阻密度较低,则当滑块243滑动相同的距离D时,将会在滑动变阻器241所连接的电路中产生反馈信号的较小变化,输出给控制模块23的电阻信号的精度较低,这对应于后视镜的支架调节。
在另一些实施例中,第一区域S1和第二区域S2可以由不同的材料制成。需要说明的是,还可以设想其他的方案来使得第一区域S1和第二区域S2被设计成当滑块243在其上滑动时反映出不同的阻值,本公开的实施例对此不做特别限制。
根据这里描述的实施例,将位置反馈模块24的阻值调节区242按照后视镜3的支架调节和镜面调节进行划分,针对不同的部分采用不同精度的位置反馈电路,进而实现后视镜3的镜面调节和后视镜的支架调节共用电机的情况下,对镜面水平方向实现高精度调节。
如图3所示,阻值调节区242还包括第三区域S3,其中第一区域S1位于第二区域S2和第三区域S3之间。第三区域S3被配置成响应于滑块在第三区域上滑动预定距离向控制模块23输出不同于第一数据的第三数据。在一些实施例中,第三区域S3的电阻密度低于第一区域S1的电阻密度。在后视镜3的调节过程期间,当后视镜3从完全收纳的位置逐渐展开时,在其整个行程范围内,前段和后段的支架调节所需要的精度较低,而中间的镜面调节需要较高的精度。因此,需要精确调节的镜面调节往往位于调节过程的中期,而精度要求较低的支架调节位于调节范围的两端(即前期和后期),因此,将电阻密度较高的第一区域S1设置在中部而将电阻密度较低的第二区域S2和第三区域S3设置在两侧,可以很好地对应于后视镜的调节,从而确保为驾驶员提供良好的驾驶视野。
在一些实施例中,可以通过调节各个区域S1、S2、S3之间的阻值分布,来调节镜面调节与支架调节的精度比。例如,在某些实施例中,镜面调节的精度可以是支架调节的精度的2.8倍。需要说明的是,图3中示出的阻值调节区中的各个区域S1、S2、S3的范围仅仅是示意性的,而非限制性的。根据实际的需求,这些区域的范围可以进行相应的调整。具体的范围不受到本公开的实施例的限制。
根据本公开的实施例,控制模块23驱动电机22双向转动,从而带动后视镜镜面和支架共同旋转。电机22的位置变化触发位置反馈模块24中的滑动变阻器241的阻值发生变化,控制模块23能够基于位置反馈模块24传递的表示电机22的位置的信号,识别到该位置的变化,并且在需要时控制电机22停止并提示用户。
图4示出了根据本公开的示例性实施例的调节装置中的位置反馈模块24的另一种可行的实施例。在图4所示的实施例中,其中位置反馈模块24包括用于发射信号的信号发射部245、用于接收该信号的信号接收部246、以及设置在信号发射部245和信号接收部246之间的齿轮247。如图所示,齿轮247具有多个齿,信号发射部245和信号接收部246之间的信号传递会受到这些齿的影响。例如,可以使信号发射部245和信号接收部246之间的信号传输路径设置在齿轮247的轮缘附近,从而使得当信号被齿轮247的齿阻挡时,信号发射部245与信号接收部246之间的信号传输中断,这使得信号接收部246无法接收到来自信号发射部245的信号;或者随着齿轮247的转动,当信号从齿轮247的这些齿之间的齿隙通过时,信号可以顺利到达信号接收部246。根据这种设计,信号接收部246收到的信号是间歇性的信号,而这些信号的占空比是受到齿轮247的轮齿尺寸和/或齿隙尺寸的影响的。这里的轮齿尺寸可以包括轮齿的齿距、齿厚、齿高、齿顶高、齿根高等参数。这里的齿隙尺寸可以指代的是相邻齿轮之间的间隙。
如图4所示,齿轮247上的轮齿并不是等距的。具体来说,齿轮247可以包括相邻的第一齿轮区段2471和第二齿轮区段2472。在一些实施例中,第一齿轮区段2471的齿隙尺寸可以不同于第二齿轮区段2472的齿隙尺寸。例如,在图示的实施例中,第一齿轮区段2471具有较小的齿隙尺寸,而第二齿轮区段2472具有相对较大的齿隙尺寸。根据这种设置,随着齿轮247的转动,当第一齿轮区段2471转动至信号传输的路径上时,信号的占空比将会不同于第二齿轮区段2472转动到信号传输路径上时的占空比。在另一些实施例中,第一齿轮区段2471的轮齿尺寸可以不同于第二齿轮区段2472的轮齿尺寸。根据这种设置,类似于上面描述的齿隙尺寸的差异,轮齿尺寸的差异同样也会引起在信号发射部245和信号接收部246之间传输的信号的占空比的变化,从而使得位置反馈模块24对于镜面与支架可以实现不同的精度调节。
如图3所示,齿轮247上还可以设置有第三齿轮区段2473,其位于第一齿轮区段2471的与第二齿轮区段2472相反的一侧,从而使得第一齿轮区段2471位于第二齿轮区段2472和第三齿轮区段2473之间。在这三个齿轮区段中,第一齿轮区段2471可以具有相比于其他两个区段更密的齿轮分布,这是因为,当后视镜3从完全收纳的位置逐渐展开时,在其整个行程范围内,前段和后段的支架调节所需要的精度较低,而中间部分的镜面调节需要较高的精度。
在一些实施例中,信号可以是激光信号。在另一些实施例中,信号可以是红外线信号。当然,这仅仅是示意性的,其他类型的信号也是可行的,这可以根据具体的使用环境和设计需求来调整,这样的实施例同样落入本公开的范围中。
在另一些实施例中,位置反馈模块24还可以包括设置在齿轮247附近的传感器,这些传感器可以感测反映第一齿轮区段2471和第二齿轮区段2472的轮齿尺寸和/或齿隙尺寸的信号,并且将相应的信号传递给控制模块23。在一些实施例中,这样的传感器可以是霍尔传感器。霍尔传感器对磁场是敏感的,因此可以感受磁场的正负极。磁场的一次正负变化就形成一个脉冲,利用脉冲数量来计算行程,那么通过不同的齿轮的间隙密度就可以实现不同精度下的位置反馈。
上面详细描述了位置反馈模块24的一些具体的实施例。需要说明的是,当然,这里列出的这些详细的方案仅仅是示例性的,而非限制性的。具体的方案不受到本公开的实施例的限制。在其他实施例中,位置反馈模块24也可以是其他具有反馈功能的芯片或者电路。还可以 设想出文中未列举的位置反馈模块24的其他形式,只要其可以实现将电机22的位置加以区分地反馈给控制模块23即可。
本公开还涉及一种后视镜组件。该后视镜组件包括镜面、支撑镜面的支架、以及上面描述的用于调剂后视镜的调节装置2。本公开还涉及一种车辆3。该车辆包括上面描述的后视镜组件。车辆可以采用各种形式,本公开的实施例对此不做特别限制。
本公开还涉及一种后视镜的调节方法,如图5所示,其示出了根据本公开的实施例的调节方法500。在框502,接收表示调节镜面的第一输入211和表示调节支架的第二输入212中的至少一个输入。在框504,响应于至少一个输入,驱动电机22转动,其中电机22被配置为驱动镜面和支架共同转动。在框506,响应于电机22基于第一输入211转动预定角度α,输出第一数据。在框508,响应于电机22基于第二输入212转动所述预定角度α,输出不同于第一数据的第二数据。
应该理解的是,这里描述的方法500可以结合上文描述的用于调节后视镜3的装置2一起使用,装置2中的具体细节也可以与这里描述的方法500结合使用。出于简洁的目的,该方法的更多细节在此不做赘述。
相比于传统的不对镜面调节和支架调节进行区分的方案,本公开的实施例通过针对与镜面调节相对的区域设置较高的调节精度,同时针对与支架调节相对的区域设置相对较低的调节精度,在无需改变控制器的识别精度的条件下,能够实现后视镜3的镜面的高精度调节。由此,在同样的精度条件下可以降低后视镜模块的成本,进而降低车辆的成本。
需要说明的是,本公开的实施例对于后视镜的类型不做特别限制。本公开的实施例既可以适用传统的带边框的后视镜,也可以适用于无边框的后视镜。
应该理解,可以使用上面所示的各种形式的流程,重新排序、增加或删除步骤。例如,本公开中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行,只要能够实现本公开公开的技术方案所期望的结果,本文在此不进行限制。
尽管已经采用特定于结构特征和/或方法逻辑动作的语言描述了本主题,但是应当理解所附权利要求书中所限定的主题未必局限于上面描述的特定特征或动作。相反,上面所描述的特定特征和动作仅仅是实现权利要求书的示例形式。

Claims (13)

  1. 一种后视镜的调节装置,所述后视镜包括镜面和支撑所述镜面的支架,所述调节装置包括:
    输入接收模块,被配置为接收表示调节所述镜面的第一输入和表示调节所述支架的第二输入中的至少一个输入;
    电机,被配置为驱动所述镜面和所述支架共同转动;
    控制模块,耦接至所述输入接收模块和所述电机,并且被配置为响应于所述至少一个输入驱动所述电机转动;以及
    位置反馈模块,耦接至所述电机并且被配置为:
    响应于所述电机基于所述第一输入转动预定角度,向所述控制模块输出第一数据;以及
    响应于所述电机基于所述第二输入转动所述预定角度,向所述控制模块输出不同于所述第一数据的第二数据。
  2. 根据权利要求1所述的调节装置,其中所述位置反馈模块包括滑动变阻器,所述滑动变阻器包括:
    阻值调节区,包括相邻的第一区域和第二区域;以及
    滑块,被配置成在所述阻值调节区上滑动,并且被配置成:
    响应于所述滑块在所述第一区域上滑动预定距离向所述控制模块输出所述第一数据,以及
    响应于所述滑块在所述第二区域上滑动所述预定距离向所述控制模块输出所述第二数据。
  3. 根据权利要求2所述的调节装置,其中所述第一区域具有比所述第二区域更大的电阻密度。
  4. 根据权利要求2至3中任一项所述的调节装置,其中所述第一区域和所述第二区域由不同的材料制成。
  5. 根据权利要求2至4中任一项所述的调节装置,其中所述阻值调节区还包括第三区域,其中所述第一区域位于所述第二区域和所述第三区域之间,所述第三区域被配置成响应于所述滑块在所述第三区域上滑动所述预定距离向所述控制模块输出不同于所述第一数据的第三数据。
  6. 根据权利要求5所述的调节装置,所述第三区域具有比所述第一区域更小的电阻密度。
  7. 根据权利要求1所述的调节装置,其中所述位置反馈模块包括:
    信号发射部,被配置成发射信号;
    信号接收部,被配置成接收所述信号;以及
    齿轮,耦接至所述电机并且包括多个齿,所述齿轮设置在所述信号发射部和所述信号接收部之间,并且被配置成使得所述信号能够被所述齿轮的所述多个齿阻挡、或者从所述多个齿之间的齿隙通过以到达所述信号接收部,
    其中所述齿轮包括第一齿轮区段和第二齿轮区段,所述第一齿轮区段具有不同于所述第二齿轮区段的轮齿尺寸和/或齿隙尺寸。
  8. 根据权利要求7所述的调节装置,其中所述信号包括激光信号或红外线信号。
  9. 根据权利要求1所述的调节装置,其中所述位置反馈模块包括:
    齿轮,耦接至所述电机并且包括第一齿轮区段和第二齿轮区段,所述第一齿轮区段具有不同于所述第二齿轮区段的轮齿尺寸和/或齿隙尺寸;以及
    传感器,设置在所述齿轮附近,被配置成感测反映所述第一齿轮区段和所述第二齿轮区段的所述轮齿尺寸和/或所述齿隙尺寸的信号,并且将相应的所述信号传递给所述控制模块。
  10. 根据权利要求1至9中任一项所述的调节装置,所述控制模块还被配置为:
    基于所述位置反馈模块传递的表示所述电机的位置的信号,来确定是否使所述电机停止。
  11. 一种后视镜组件,包括:
    镜面;
    支撑所述镜面的支架;以及
    根据权利要求1至10中任一项所述的调节装置。
  12. 一种交通工具,包括根据权利要求11所述的后视镜组件。
  13. 一种后视镜的调节方法,所述后视镜包括镜面和支撑所述镜面的支架,所述方法包括:
    接收表示调节所述镜面的第一输入和表示调节所述支架的第二输入中的至少一个输入;
    响应于所述至少一个输入,驱动电机转动,其中所述电机被配置为驱动所述镜面和所述支架共同转动;
    响应于电机基于所述第一输入转动预定角度,输出第一数据;以及
    响应于所述电机基于所述第二输入转动所述预定角度,输出不同于所述第一数据的第二数据。
PCT/CN2023/092796 2023-05-08 2023-05-08 后视镜的调节装置、后视镜组件、交通工具和后视镜的调节方法 Ceased WO2024229657A1 (zh)

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US20050111118A1 (en) * 2003-11-25 2005-05-26 Chia-Jung Chang Door lock transmission element
CN201325381Y (zh) * 2008-11-27 2009-10-14 麦格纳唐纳利(上海)汽车系统有限公司 一种带记忆功能的后视镜镜面角度调节控制装置
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