Vehicle door and door opening control device

Abstract

The utility model relates to a vehicle door and a vehicle door opening control device. The vehicle door opening control device comprises an information obtaining module, an information processing module and a vehicle door actuating module, the information obtaining module is in communication connection with the information processing module and used for obtaining the distance between a vehicle door and an obstacle outside the vehicle door, and the information processing module is in communication connection with the vehicle door actuating module and used for obtaining the distance between the vehicle door and the obstacle outside the vehicle door. The information processing module is used for acquiring the distance, comparing the acquired distance with a preset safety distance and outputting corresponding information to the vehicle door actuating module according to a comparison result, and the vehicle door actuating module is used for receiving the information output by the information processing module and outputting variable actuating force to the vehicle door when the vehicle door is opened according to the received information. The vehicle door comprises the vehicle door opening control device. According to the utility model, passengers can safely open the vehicle door.

Description

Technical Field

[0001] The present utility model relates to the field of vehicles, and particularly to the opening control of vehicle doors. In a first aspect, the present utility model relates to a vehicle door opening control device. In a second aspect, the present utility model relates to a vehicle door including the control device. Background Art

[0002] Traditional vehicle doors are manually opened and closed. With the development of technology, electric switch systems are increasingly used in vehicle doors to assist passengers in entering and exiting the vehicle safely and comfortably. For example, a door actuator provides driving force to assist passengers in opening the door.

[0003] Current electric vehicle door switch systems have some deficiencies. For example, some vehicle doors integrate a door opening warning system to alert passengers who open the door from inside the vehicle when the distance between the vehicle and the surrounding environment is less than a safe distance. However, current warning systems generally use lights or sounds for alerts, and if the vehicle is in a noisy environment or the passengers are inattentive, the passengers may ignore these alerts, thus posing a safety risk.

[0004] Therefore, there is a need for a safer vehicle door opening control system to enable passengers to open the door safely. Summary of the Utility Model

[0005] The object of the present utility model is to eliminate or at least mitigate the above-mentioned drawbacks.

[0006] To this end, the present utility model provides a vehicle door opening control device, which includes an information acquisition module, an information processing module, and a door actuation module. Among them, the information acquisition module is communicatively connected to the information processing module and is used to acquire the distance between the vehicle door and an obstacle outside the vehicle. The information processing module is communicatively connected to the door actuation module and is used to compare the acquired distance with a predetermined safe distance and output corresponding information to the door actuation module according to the comparison result. The door actuation module is used to receive the information output by the information processing module and output a variable driving force to the vehicle door when opening the door according to the received information.

[0007] According to an embodiment, the information processing module includes a first sub-module and a second sub-module. The first sub-module is used to output a warning message to the door actuation module when the acquired distance is less than the predetermined safe distance. The second sub-module is used to output a safety message to the door actuation module when the acquired distance is greater than the predetermined safe distance. And the door actuation module is used to output a variable driving force to the vehicle door when receiving the warning message.

[0008] According to an embodiment, the information acquisition module includes a distance sensor or a radar.

[0009] According to an embodiment, the reference value of the actuation force is 5-20 Newtons, and the actuation force varies around the reference value. The actuation force is in the form of a square wave or a sine curve, with a period of 10-100 Hz, and the amplitude of the actuation force varies within a range of 5-10% around the reference value.

[0010] According to an embodiment, the information processing module is a body control module (BCM) or a door control unit (DCU).

[0011] According to an embodiment, the door actuation module includes a door motor and an electronic control unit (ECU), which is in communication with the information processing module and is used to output a variable voltage to the door motor (for example, by adjusting the PWM frequency of the electronic control unit) when the door is opened according to the received warning information, so that the output torque of the door motor changes according to a certain curve (such as a square wave or a sine curve), thereby achieving a variable actuation force. When receiving the safety information, when the door is opened, the electronic control unit normally controls the output torque of the door motor to provide the actuation force to the door, thereby assisting the passenger to open the door.

[0012] According to an embodiment, the information processing module comprises a memory, and the predetermined safety distance is stored in the memory.

[0013] The utility model also provides a vehicle door, which comprises the above-mentioned vehicle door opening control device.

[0014] According to the utility model, when opening the door, the control device detects the distance between the door and the obstacle outside the vehicle, and compares the distance with the predetermined safety distance. If the obstacle outside the vehicle is not within the safety distance, a warning signal is output to the electronic control unit of the door actuation module. After receiving the warning signal, the electronic control unit adjusts the PWM frequency to output a specific voltage curve, and then causes the door motor to change its output torque according to the voltage curve, so that when the door is opened, the actuation force provided by the door motor to the door changes, such as a sine curve / square wave form, thereby causing the door to vibrate. In this way, the passengers will intuitively feel the vibration of the door when opening the door in the car, making the manual operating force required to open the door (the manual operating force obtained by superimposing the normal door opening force on the door vibration force) abnormal, thereby alerting the passengers.

[0015] Therefore, the utility model can use the abnormal changes in the manual operating force required to open the door to provide intuitive reminders, which is sufficient to alert the passengers and make them observe the surrounding environment. On the other hand, the utility model can also respect the wishes of the passengers, so that the passengers can still open the door under abnormal manual operating force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The embodiments of the present invention will be explained in more detail in the accompanying drawings, in which:

[0017] Figure 1 is the overall block diagram of the door opening control device of the present utility model;

[0018] Figure 2A is Figure 1 the block diagram of the information processing module of the door opening control device of

[0019] Figure 2B is Figure 1 the block diagram of the door actuation module of the door opening control device of

[0020] Figure 3 is the block diagram of the door opening control device for adjusting the manual operating force required to open the door according to an embodiment of the present utility model;

[0021] Figure 4 is to adopt Figure 3 the schematic diagram of the door opening control device for adjusting the manual operating force required to open the door. Detailed implementation manners

[0022] The following will refer to Figures 1-4 to describe the embodiments of the present utility model.

[0023] Figure 1 shows the overall block diagram of the door opening control device 1 according to the present utility model. The door opening control device 1 includes an information acquisition module 10, an information processing module 20, and a door actuation module 30. Among them, the information acquisition module 10 is communicatively connected to the information processing module 20 and is used to acquire the distance between the door and the obstacle outside the vehicle. The information processing module 20 is communicatively connected to the door actuation module 30 and is used to compare the acquired distance with a predetermined safety distance and output corresponding information to the door actuation module according to the comparison result. The door actuation module 30 is used to receive the information output by the information processing module and output a variable actuation force to the door when opening the door 40.

[0024] Figure 2A shows the block diagram of the information processing module 20. The information processing module includes a first sub-module 21, a second sub-module 22, and a memory 23. The first sub-module 21 is used to output a warning message to the door actuation module when the acquired distance is less than the predetermined safety distance. The second sub-module 22 is used to output a safety message to the door actuation module when the acquired distance is greater than the predetermined safety distance. And the door actuation module is used to output a variable actuation force to the door 40 when receiving the warning message. The predetermined safety distance is stored in the memory 23.

[0025] Figure 2BShows a block diagram of a door actuation module 30, which includes a door motor 31 and an electronic control unit 32 (ECU). The electronic control unit 32 is communicatively connected to the information processing module 20 and is configured to output a varying voltage to the door motor 31 when opening the door based on a received warning message.

[0026] Figure 3 Shows a block diagram of a door opening control device according to an embodiment of the present invention. As shown, it includes a sensor (information acquisition module), a controller (information processing module), a door motor, and an electronic control unit ECU. The sensor is a distance sensor for detecting the distance between the door and an external obstacle outside the vehicle. The controller is configured to receive environmental sensor signals. If the external obstacle is not within a safe distance, the controller sends a warning signal to the ECU. In this example, the controller can utilize a body control module BCM or a door control unit DCU. Then, after the ECU receives the warning signal, it adjusts the PWM frequency to output a specific voltage curve, such that the motor output torque varies according to the specific voltage curve, such as a sine curve / square wave, etc. The door motor changes the driving force provided to the door according to the voltage frequency of the ECU, such that the driving force changes with the change of the voltage of the ECU, causing the door to vibrate.

[0027] Figure 4 Shows the use of Figure 3 Schematic diagram of the door opening control device for adjusting the manual operation force required to open the door. The left figure shows the force curve of the normal manual operation force (i.e., without adjustment) as the door opening angle changes. The middle figure shows the door vibration force curve (varying driving force curve) to be superimposed. The right figure shows the superimposed manual operation force. As shown, the driving force provided by the door motor to the door (i.e., the driving force curve shown in the middle figure) changes in a sine wave form, causing the door to vibrate. In this way, when a passenger opens the door inside the vehicle, they will intuitively feel the door vibration, making the manual operation force required to open the door (the superimposed force curve in the right figure) abnormal.

[0028] In this way, when the distance between the external obstacle and the vehicle is less than the safe distance, when a passenger opens the door from inside the vehicle, the door opening control device will trigger an opening warning, causing the electronic control unit of the door actuation module to output a specific voltage curve, and then causing the torque output by the door motor and thus the driving force provided to the door to change according to the voltage curve, and what is transmitted to the passenger's hand is a servo force that varies greatly. This intuitive abnormal manual operation force is sufficient to alert the passenger.

[0029] The door opening control device of the present invention can make the most of the existing sensors in the current vehicle to the greatest extent and enable passengers to safely open the door.

[0030] In some cases, the features disclosed in the present utility model can be used independently of other features. On the other hand, when necessary, the features disclosed in the present utility model can be combined to provide various combinations.

[0031] The terms and expressions used in the present utility model are illustrative rather than restrictive, and thus using these terms and expressions does not intend to exclude any equivalents of the features illustrated and described from the scope of the present utility model. There may be various modifications, variations and alternatives within the scope of the claims. The claims are intended to cover all such equivalents.

Claims

1. A door opening control device, characterized in that: The door opening control device includes an information acquisition module, an information processing module and a door actuation module, wherein the information acquisition module is communicatively connected to the information processing module and is used to acquire the distance between the door and an obstacle outside the door; the information processing module is communicatively connected to the door actuation module and is used to compare the acquired distance with a predetermined safety distance and output corresponding information to the door actuation module based on the comparison result; the door actuation module is used to receive information output by the information processing module and output a varying actuation force to the door when opening the door based on the received information.

2. The vehicle door opening control device according to claim 1, characterized in that: The information processing module includes a first submodule and a second submodule, the first submodule is used to output a warning message to the door actuation module when the acquired distance is less than a predetermined safety distance, the second submodule is used to output safety information to the door actuation module when the acquired distance is greater than the predetermined safety distance, and the door actuation module is used to output a changing actuation force to the door when receiving the warning message.

3. The vehicle door opening control device according to claim 1, characterized in that: The information acquisition module includes a distance sensor or a radar.

4. The vehicle door opening control device according to any one of claims 1 to 3, characterized in that: The reference value of the actuation force is 5-20 Newtons, and the actuation force varies around this reference value.

5. The vehicle door opening control device according to claim 4, characterized in that: The actuation force is in the form of a square wave or a sine wave with a period of 10-100 Hz.

6. The vehicle door opening control device according to claim 5, characterized in that: The actuation force varies in amplitude from 5-10% around the reference value.

7. The vehicle door opening control device according to any one of claims 1 to 3, characterized in that: The information processing module is a body control module or a door control unit.

8. The vehicle door opening control device according to claim 2, characterized in that: The door actuation module includes a door motor and an electronic control unit. The electronic control unit is communicatively connected with the information processing module and is used to output a variable voltage to the door motor when the door is opened according to the received warning information.

9. The vehicle door opening control device according to any one of claims 1 to 3, characterized in that: The information processing module includes a memory, and the predetermined safety distance is stored in the memory.

10. A vehicle door, characterized in that The vehicle door opening control device comprises the vehicle door opening control device according to any one of claims 1-9.

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