CN113482487A - Electric vehicle door control system and control method thereof - Google Patents
Electric vehicle door control system and control method thereof Download PDFInfo
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- CN113482487A CN113482487A CN202110748117.8A CN202110748117A CN113482487A CN 113482487 A CN113482487 A CN 113482487A CN 202110748117 A CN202110748117 A CN 202110748117A CN 113482487 A CN113482487 A CN 113482487A
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/56—Control of actuators
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/36—Locks for passenger or like doors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F2015/483—Detection using safety edges for detection during opening
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- Power-Operated Mechanisms For Wings (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an electric vehicle door control system and a control method thereof, belonging to the technical field of control and data acquisition, wherein the system comprises an electric vehicle door controller, a vehicle door opening and closing actuating mechanism, a door lock, a switch and a safety early warning device; the electric door controller is used for acquiring external information, receiving an external command, controlling opening and closing of a door and locking and unlocking the door, and the door opening and closing actuating mechanism is used for controlling electric opening and closing of the door and identifying and controlling the opening angle of the door; the door lock is used for realizing electric locking and unlocking of the vehicle door, and the safety early warning device is used for reminding a vehicle owner. The system and the method of the invention can realize the electric opening and closing of the vehicle door and can realize the manual opening and closing at the same time; the invention not only brings distinctive brand new experience to users, but also solves the limitation caused by manually opening and closing the door, and brings great convenience to people with inconvenient actions or car owners with too many articles on hands.
Description
Technical Field
The invention belongs to the technical field of control and data acquisition, and particularly relates to an electric vehicle door control system and a control method thereof.
Background
With the continuous improvement of living standard, automobiles enter thousands of households to become the first choice for people to go out, and people can not leave the automobiles more and more. In recent years, with the acceleration of the intelligent development pace of automobiles, vehicle-mounted 'black technology' is also emerging. Many 'black technologies' bring more convenience to people, and simultaneously improve the safety and the convenience of vehicles, and the fashion function is also pursued by young people. However, the opening and closing of the vehicle door is today mainly performed by hand.
At present, the opening and closing modes of the vehicle door mainly comprise two modes: a manual mode and an electric mode, wherein the manual mode is the main mode.
The manual mode is the most common door opening and closing mode, and is that a person opens the door by pulling a door handle or closes the door by pushing with a hand. The manual mode has the characteristics of simple structure and low cost, but the opening and closing of the car door can be realized by hands.
Over a hundred years of automobile development, with the emergence of various new technologies, many configurations are eliminated after the emergence of the new technologies, but the automobile doors are always available. Although the opening mode of the vehicle door is changed greatly, the opening of the vehicle door usually requires a person to open the vehicle door manually through a vehicle door handle. The first impression of a passenger on the vehicle is usually from the door, and besides the attractive appearance, the diversity and the intelligence degree of the door access way are more and more valued by the wide vehicle owners. Along with the popularization of intelligent interconnection and intelligent driving, the demand of an electric vehicle door opening system is more and more strong.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides an electric vehicle door control system and a control method thereof, which can realize electric opening and closing of a vehicle door and manual opening and closing at the same time; the invention not only brings distinctive brand new experience to users, but also solves the limitation caused by manually opening and closing the door, and brings great convenience to people with inconvenient actions or car owners with too many articles on hands.
The invention is realized by the following technical scheme:
an electric vehicle door control system comprises an electric vehicle door controller, a vehicle door opening and closing actuating mechanism, a door lock, a switch and a safety early warning device; the electric door controller is used for acquiring external information, receiving an external command, controlling opening and closing of a door and locking and unlocking the door, and the door opening and closing actuating mechanism is used for controlling electric opening and closing of the door and identifying and controlling the opening angle of the door; the door lock is used for realizing electric locking and unlocking of the vehicle door, and the safety early warning device is used for reminding a vehicle owner.
Preferably, the electric vehicle door controller consists of a microcontroller ECU, a memory EEPROM and a driving circuit; the microcontroller receives the state information of the whole vehicle through the CAN network, judges whether the system is in a safe working condition according to the logic sequence of the vehicle speed, the wheel speed, the power supply mode, the gear and the parking signal, and the ECU responds to any command when the system is in the safe working condition; when the system is in an unsafe working condition, the ECU refuses the door opening command and can respond to the door closing command; when the vehicle door is electrically opened, the vehicle door is switched to an unsafe working condition at the moment, and the vehicle door hovers; when the door is electrically closed, the door is switched to an unsafe working condition, and the door is not influenced and continues to be electrically closed.
Preferably, the vehicle door opening and closing actuating mechanism is composed of a motor, a Hall sensor and an actuator, the Hall sensor transmits collected information to the actuator for execution, and the motor is used for driving the actuator.
Preferably, the door lock is a self-absorption lock, is used for realizing electric locking and unlocking of the vehicle door, and consists of a latch controller, a door lock motor and a locking state switch, wherein the door lock motor is used for driving the latch controller to control the locking state switch; the locking state switch comprises a pawl position feedback switch, a half-locking state switch and a full-locking state switch.
Preferably, the safety early warning device consists of a radar and a buzzer, and the radar is used for detecting obstacles near the vehicle door so as to judge whether potential safety hazards exist in the door opening and closing process; the buzzer produces a buzzing sound for alerting the owner of the vehicle and the pedestrian.
An electric vehicle door control method specifically comprises the following steps:
the method comprises the following steps: when the system detects that the power supply voltage is higher or lower than the set voltage, the electric vehicle door controller closes the related functions to avoid system damage; when the power supply voltage returns to normal, the electric vehicle door controller returns to the relevant function;
step two: when the system detects that the power supply voltage is within a set range, the control system enters a working mode, and the working mode specifically comprises the following modes:
a. an initialization mode: the system is powered on again after being powered on or powered off for the first time, and enters an initialization mode; in this mode, when the self-priming lock is in the full lock state, the Hall position 0 will be learned; electrically opening the vehicle door for the first time after the Hall position 0 learning is finished, and learning the maximum mechanical door opening angle by the ECU;
wherein the Hall position 0 learns: manually closing the vehicle door to a full-locking position, or manually closing the vehicle door to a half-locking position, automatically attracting the self-suction lock to the full-locking position, setting the Hall position 0 of the ECU, otherwise, not responding to any operation command by the ECU;
the maximum mechanical door opening angle learning: after the Hall position 0 is set, if the maximum mechanical door opening angle learning state exists in the EEPROM, directly entering a working mode; otherwise, the ECU only responds to the door opening command, the door is electrically opened to the maximum mechanical door opening angle and locked rotor protection is carried out, when the locked rotor is carried out, the Hall position of the door is larger than the maximum mechanical door opening angle, the effective position is learned, the learning of the maximum mechanical door opening angle is completed, and the system enters a working mode;
setting or clearing of the maximum mechanical door opening angle: the maximum mechanical door opening angle can be set or cleared through an external command; after the maximum mechanical door opening angle is cleared, the system returns from the operating mode to the initialization mode.
b. A transportation mode: the ECU receives a transportation mode command, and the system enters a transportation mode; in the mode, the ECU only keeps the functions of electric unlocking and electric locking and does not respond to any operation command; the transport mode can be exited by an external command;
c. the working mode is as follows: the system can work normally in the mode and can complete all functions of the system;
the ECU receives a switch command input by a hard wire or a CAN network signal, and drives the self-closing lock, the electric hinge motor and the buzzer by judging the current system state, so that the electric opening and closing of the vehicle door are realized, and the opening and closing speed of the vehicle door is controlled in a closed loop manner in the opening and closing process of the vehicle door;
d. low power consumption mode: when no command is received for a long time and no operation is performed, the system enters a low power consumption mode to save power;
e. protection mode: when the motor is started frequently, in order to prevent the motor from overheating, the system enters a failure mode; the ECU counts according to the running state of the motor, when the count reaches a threshold value, the current operation is finished, then a protection mode is entered, and under the mode, any command is forbidden to be responded;
f. failure mode: when the electric hinge motor is blocked by foreign matters or a locked-rotor fault occurs due to the abnormal position of the Hall, the system enters a fault mode; and after the motor stops running, the locked rotor fault is cleared, and the ECU returns to the working mode.
Preferably, step one is as follows:
a. the microcontroller detects that the supply voltage transits from normal voltage to undervoltage: the power supply voltage is in a descending trend and reaches a first working point, the microcontroller closes related functions, and the electric vehicle door control system enters under-voltage protection;
b. the microcontroller detects that the power supply voltage is transited from undervoltage to normal voltage: the power supply voltage recovers from the undervoltage to reach a second working point, the microcontroller recovers the related functions, and the electric vehicle door control system releases the undervoltage protection;
c. the microcontroller detects that the power supply voltage is transited from normal voltage to overvoltage: the power supply voltage is in a rising trend and reaches a third working point, the microcontroller closes related functions, and the electric vehicle door control system enters overvoltage protection;
d. the microcontroller detects that the supply voltage transits from overvoltage to normal voltage: and the power supply voltage is recovered from overvoltage to reach a fourth working point, the microcontroller recovers related functions, and the electric vehicle door control system releases overvoltage protection.
Compared with the prior art, the invention has the following advantages:
the electric vehicle door control system has an electric opening and closing mode of the vehicle door, and can realize electric opening and closing of the vehicle door; meanwhile, the manual mode can be converted into the manual mode to realize the manual door opening and closing when necessary. The electric door opening and closing is realized by the opening and closing commands received by the system. Such a command may be from a switch button or from a door switch command on an in-vehicle bus, such as but not limited to a CAN bus, a LIN bus, etc. The electric door can be opened and closed in a variety of ways, but not limited to, a button mode, a remote controller mode, a limb action control mode, a fingerprint and human face electric door and the like.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a system block diagram of an electric vehicle door control system of the present invention;
FIG. 2 is a schematic view of an electric vehicle door control system according to the present invention under overvoltage or undervoltage conditions;
fig. 3 is a schematic diagram of motor protection determination according to the present invention.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the invention is as follows by combining the attached drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Example 1
As shown in fig. 1, the present embodiment provides an electric vehicle door control system, which comprises an electric vehicle door controller, a vehicle door opening and closing actuator, a door lock, a switch and a safety pre-warning device; the electric door controller is used for acquiring external information, receiving an external command, controlling opening and closing of a door and locking and unlocking the door, and the door opening and closing actuating mechanism is used for controlling electric opening and closing of the door and identifying and controlling the opening angle of the door; the door lock is used for realizing electric locking and unlocking of the vehicle door, and the safety early warning device is used for reminding a vehicle owner.
Example 2
As shown in fig. 2 to 3, the present embodiment provides a method for controlling an electric vehicle door, which specifically includes the following steps:
1. 1, overvoltage/undervoltage protection
When the system detects that the supply voltage is higher or lower than the set voltage, the ECU turns off the relevant function to avoid system damage. When the power supply voltage returns to normal, the ECU returns to the relevant function.
See fig. 2. A
a. ECU detects that the supply voltage transits from normal voltage to undervoltage: the power supply voltage is in a descending trend and reaches a first working point, the ECU closes related functions, and the electric vehicle door control system enters under-voltage protection;
b. ECU detects that the supply voltage is transited from undervoltage to normal voltage: the power supply voltage recovers from undervoltage and reaches a second working point, the ECU recovers the related functions, and the electric vehicle door control system releases undervoltage protection;
c. the ECU detects that the power supply voltage is transited from normal voltage to overvoltage: the power supply voltage is in a rising trend and reaches a third working point, the ECU closes related functions, and the electric vehicle door control system enters overvoltage protection;
d. the ECU detects that the power supply voltage is transited from overvoltage to normal voltage: and recovering the power supply voltage from overvoltage to a working point, recovering the related functions of the ECU, and removing the overvoltage protection by the electric vehicle door control system.
1. 2, system working mode
a. An initialization mode: the system is powered on again after being powered on or powered off for the first time, and enters an initialization mode. In this mode, when the self-priming lock is in the full lock state, the Hall position 0 will be learned; the door is electrically opened for the first time after Hall position 0 learning is completed, and the ECU learns the maximum mechanical door opening angle.
Hall position 0 learning: and manually closing the vehicle door to a full-locking position, or manually closing the vehicle door to a half-locking position, automatically attracting from the closing lock to the full-locking position, setting the Hall position 0 of the ECU, and otherwise, not responding to any operation command by the ECU.
Maximum mechanical door opening angle learning: after the Hall position 0 is set, if the maximum mechanical door opening angle learning state exists in the EEPROM, directly entering a working mode; otherwise, the ECU only responds to the door opening command, the door is electrically opened to the maximum mechanical door opening angle and locked rotor protection occurs, when the locked rotor is in the state that the Hall position of the door is larger than the maximum mechanical door opening angle, the effective position is learned, the learning of the maximum mechanical door opening angle is completed, and the system enters a working mode.
Setting or clearing of the maximum mechanical door opening angle: the maximum mechanical door opening angle can be set or cleared by an external command. After the maximum mechanical door opening angle is cleared, the system returns from the operating mode to the initialization mode.
b. A transportation mode: the ECU receives the transportation mode command and the system enters the transportation mode. In this mode, the ECU will only retain the functions of electrically unlocking and electrically locking without responding to any operating commands. The transport mode can be exited by an external command.
c. The working mode is as follows: the system can work normally in this mode, and can complete all functions of the system.
d. Low power consumption mode: when no command is received for a long time and no operation is performed, the system enters a low power consumption mode to save power.
e. Protection mode: when the motor is frequently started, the system will enter a failure mode in order to prevent the motor from overheating.
f. Failure mode: when the electric hinge motor is blocked by foreign matters or a locked-rotor fault occurs due to the abnormal position of the Hall motor, the system enters a fault mode.
The electric vehicle door control system has the following functions:
1. safe operating conditions
Safe working conditions are as follows: the opening or closing process of the vehicle door can not cause safety accidents, namely, the injury to personnel or the damage to vehicles can not be caused. And the ECU receives the state information of the whole vehicle through the CAN network and judges whether the system is in a safe working condition or not according to the vehicle speed, the wheel speed, the power supply mode, the gear and the logic sequence of the parking signal.
The ECU may respond to any command commands when the system is in safe operation.
When the system is in an unsafe working condition, the ECU refuses the door opening command and can respond to the door closing command; when the vehicle door is electrically opened, the vehicle door is switched to an unsafe working condition at the moment, and the vehicle door hovers; when the door is electrically closed, the door is switched to an unsafe working condition, and the door is not influenced and continues to be electrically closed.
2. Vehicle door opening and closing and hovering functions
The ECU receives a switch command input by a hard wire or a CAN network signal, and drives the self-closing lock, the electric hinge motor and the buzzer by judging the current system state, so that the electric opening and closing of the vehicle door are realized, and the opening and closing speed of the vehicle door is controlled in a closed loop manner in the opening and closing process of the vehicle door.
When the vehicle door is in the process of executing electric opening and closing, and the corresponding output enable is forbidden, the electric opening and closing process is immediately stopped.
3. Follow-up function
In the hovering and opening state of the vehicle door, if the vehicle door is manually pushed to be opened or closed and the pushing speed is between the follow-up minimum speed and the follow-up maximum speed within the follow-up confirmation time, the ECU judges that the vehicle door is opened or closed in a follow-up mode by detecting the change of the Hall signal. The process is as follows:
when the vehicle door is pushed outwards artificially, the vehicle door pushing speed is between the follow-up minimum speed and the follow-up maximum speed within the follow-up confirmation time, the system judges that the follow-up is effective, and the vehicle door is opened electrically; when the vehicle door is pushed inwards artificially, the vehicle door pushing speed is between the following minimum speed and the following maximum speed for a certain time, the system judges that the following is effective, and the vehicle door is closed electrically.
When the vehicle door is manually pushed to move outwards or inwards in the electric operation process, the system judges that the follow-up is invalid.
4. Maximum opening setting of vehicle door
The maximum opening of the door can be set. When leaving the factory, the system sets the maximum and minimum opening degrees of the vehicle door as the default maximum and minimum opening degrees of the vehicle door, and a user can set the maximum opening degree of the vehicle door according to actual requirements. The maximum opening degree of the vehicle door set by the user is between the default maximum opening degree of the vehicle door and the default minimum opening degree of the vehicle door, and otherwise, the maximum opening degree is invalid. During operation, the vehicle door is manually pulled to a target position, the inner handle of the vehicle door is pressed for a long time, the buzzer prompt tone is heard, and the setting of the maximum opening position of the vehicle door is completed.
5. Opening and closing of electric switch function of vehicle door
The ECU CAN start and close the electric switch function of the vehicle door through a hard wire switch or receiving a CAN bus command. After the electric switch function of the vehicle door is closed, the vehicle door can be manually opened and closed; at the moment, the ECU prohibits the electric hinge motor from operating, but keeps the functions of electric locking and electric unlocking of the self-locking lock, and simultaneously feeds back related state signals to the CAN network in real time.
6. Obstacle avoidance function
The ECU receives radar signals through a CAN bus or a LIN bus, and detects whether the vehicle door meets obstacles in the electric opening and closing process, so that obstacle avoidance operation is performed in advance, and a buzzer sound is used for prompting a user.
Judging rear obstacles: in the electric opening process of the vehicle door, if the signal is detected, it is determined that an obstacle is detected behind the vehicle door. The ECU will stop the power-on and wait for a period of time before the power-on reversal is turned off at about 5 °.
Side obstacle determination: during the electric opening process of the vehicle door, the ECU receives signals through the LIN network to monitor side obstacles. When the distance between the barrier and the vehicle door reaches a set value, the ECU stops the electric opening, and after a period of time, the electric reversing is closed by about 5 degrees.
7. Anti-pinch function
The electric vehicle door control system has an anti-pinch function. When the door electric switch in-process, through the monitoring to electronic hinge motor running current, judge whether take place to prevent pressing from both sides.
ECU is divided into a plurality of anti-pinch regions according to the angle of opening the door from closing to opening fully, through adjusting the anti-pinch compensation in these regions, can adjust the size of the anti-pinch force in different regions.
Software logic anti-pinch function: in the process of electrically opening and closing the vehicle door, if the anti-pinch action occurs, the electric vehicle door stops running and executes anti-pinch reverse operation according to the region where the motor is located. In the process of executing the anti-pinch reverse operation, if the anti-pinch action occurs again (called secondary anti-pinch), the electric vehicle door can be hovered. No matter whether take place the secondary and prevent pressing from both sides, after the operation is prevented pressing from both sides by electric door, prevent pressing from both sides the accumulative number of times and add 1.
8. Locked rotor protection
If the electric hinge motor is blocked by foreign matters or a locked-rotor fault occurs due to the abnormal Hall position, the ECU judges the motor operation current value according to the Hall signal and the motor operation current value, and immediately stops the motor which generates the locked-rotor. And enters a failure mode. And after the motor stops running, the locked rotor fault is cleared, and the ECU returns to the working mode.
9. Sleep wake-up function
The ECU manages and detects the state of the vehicle door through a network, and can enter a low power consumption mode. When the electric vehicle door is fully closed and the power mode is OFF or the power mode is invalid, the ECU enters the sleep mode.
And receiving a switching command input by a hardware switch or a CAN network signal, and awakening the ECU and executing an electric switching function.
10. Malfunction locking function
And if the ECU is determined to perform abnormal operation for n times continuously through the state of the vehicle door, executing the misoperation locking function and forbidding the electric opening and closing function of the vehicle door.
If the anti-pinch function is continuously triggered for more than n times in the opening and closing process of the electric door, the ECU executes the misoperation locking function, prohibits the electric opening and closing function of the electric door, and prompts to reject the operation command of a user by buzzing sound; if the electric door is continuously operated in a reverse rotation mode for more than n times (the clamping prevention reverse rotation is not included) in the opening and closing process of the electric door, the ECU executes the misoperation locking function, prohibits the electric opening and closing function of the electric door, and prompts to reject the operation command of a user by buzzing sound;
after the misoperation locking function is executed, a user needs to manually close the vehicle door to a half-locking state, the door lock is automatically attracted to a full-locking state, or the user manually closes the vehicle door to the full-locking state, and the ECU releases the misoperation locking function and restores to a working mode.
11. Protection mode
The protection mode is used for preventing the motor from overheating, and comprises electric hinge motor thermal protection and locking motor thermal protection. The ECU counts according to the running state of the motor, when the count reaches a threshold value, the current operation is finished, and then the protection mode is entered, and under the mode, the response to any command is forbidden. See fig. 3.
12. Alert tone control
The warning tone performs the warning tone according to the sequence of the maximum opening degree, the side obstacle avoidance, the radar first-level alarm, the radar second-level alarm and the radar third-level alarm by comparing the warning command with the diagnosis result at the moment, and the high-level warning covers the low-level warning.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. An electric vehicle door control system is characterized by comprising an electric vehicle door controller, a vehicle door opening and closing actuating mechanism, a door lock, a switch and a safety early warning device; the electric door controller is used for acquiring external information, receiving an external command, controlling opening and closing of a door and locking and unlocking the door, and the door opening and closing actuating mechanism is used for controlling electric opening and closing of the door and identifying and controlling the opening angle of the door; the door lock is used for realizing electric locking and unlocking of the vehicle door, and the safety early warning device is used for reminding a vehicle owner.
2. The electric vehicle door control system of claim 1, wherein said electric vehicle door controller is comprised of a microcontroller ECU, a memory EEPROM and a drive circuit; the microcontroller receives the state information of the whole vehicle through the CAN network, judges whether the system is in a safe working condition according to the logic sequence of the vehicle speed, the wheel speed, the power supply mode, the gear and the parking signal, and the ECU responds to any command when the system is in the safe working condition; when the system is in an unsafe working condition, the ECU refuses the door opening command and can respond to the door closing command; when the vehicle door is electrically opened, the vehicle door is switched to an unsafe working condition at the moment, and the vehicle door hovers; when the door is electrically closed, the door is switched to an unsafe working condition, and the door is not influenced and continues to be electrically closed.
3. The electric vehicle door control system of claim 1, wherein the door opening and closing actuator is comprised of a motor, a hall sensor and an actuator, the hall sensor transmits the collected information to the actuator for actuation, and the motor is used to drive the actuator.
4. The electric vehicle door control system according to claim 1, wherein the door lock is a self-priming lock, is used for realizing electric locking and unlocking of a vehicle door, and comprises a latch controller, a door lock motor and a locking state switch, wherein the door lock motor is used for driving the latch controller to control the locking state switch; the locking state switch comprises a pawl position feedback switch, a half-locking state switch and a full-locking state switch.
5. The electric vehicle door control system according to claim 1, wherein the safety early warning device is composed of a radar and a buzzer, and the radar is used for detecting an obstacle near a vehicle door to judge whether a potential safety hazard exists in the process of opening and closing the vehicle door; the buzzer produces a buzzing sound for alerting the owner of the vehicle and the pedestrian.
6. The control method of an electric vehicle door control system according to claim 1, specifically comprising the steps of:
the method comprises the following steps: when the system detects that the power supply voltage is higher or lower than the set voltage, the electric vehicle door controller closes the related functions to avoid system damage; when the power supply voltage returns to normal, the electric vehicle door controller returns to the relevant function;
step two: when the system detects that the power supply voltage is within a set range, the control system enters a working mode, and the working mode specifically comprises the following modes:
a. an initialization mode: the system is powered on again after being powered on or powered off for the first time, and enters an initialization mode; in this mode, when the self-priming lock is in the full lock state, the Hall position 0 will be learned; electrically opening the vehicle door for the first time after the Hall position 0 learning is finished, and learning the maximum mechanical door opening angle by the ECU;
wherein the Hall position 0 learns: manually closing the vehicle door to a full-locking position, or manually closing the vehicle door to a half-locking position, automatically attracting the self-suction lock to the full-locking position, setting the Hall position 0 of the ECU, otherwise, not responding to any operation command by the ECU;
the maximum mechanical door opening angle learning: after the Hall position 0 is set, if the maximum mechanical door opening angle learning state exists in the EEPROM, directly entering a working mode; otherwise, the ECU only responds to the door opening command, the door is electrically opened to the maximum mechanical door opening angle and locked rotor protection is carried out, when the locked rotor is carried out, the Hall position of the door is larger than the maximum mechanical door opening angle, the effective position is learned, the learning of the maximum mechanical door opening angle is completed, and the system enters a working mode;
setting or clearing of the maximum mechanical door opening angle: the maximum mechanical door opening angle can be set or cleared through an external command; after the maximum mechanical door opening angle is cleared, the system returns from the operating mode to the initialization mode.
b. A transportation mode: the ECU receives a transportation mode command, and the system enters a transportation mode; in the mode, the ECU only keeps the functions of electric unlocking and electric locking and does not respond to any operation command; the transport mode can be exited by an external command;
c. the working mode is as follows: the system can work normally in the mode and can complete all functions of the system;
the ECU receives a switch command input by a hard wire or a CAN network signal, and drives the self-closing lock, the electric hinge motor and the buzzer by judging the current system state, so that the electric opening and closing of the vehicle door are realized, and the opening and closing speed of the vehicle door is controlled in a closed loop manner in the opening and closing process of the vehicle door;
d. low power consumption mode: when no command is received for a long time and no operation is performed, the system enters a low power consumption mode to save power;
e. protection mode: when the motor is started frequently, in order to prevent the motor from overheating, the system enters a failure mode; the ECU counts according to the running state of the motor, when the count reaches a threshold value, the current operation is finished, then a protection mode is entered, and under the mode, any command is forbidden to be responded;
f. failure mode: when the electric hinge motor is blocked by foreign matters or a locked-rotor fault occurs due to the abnormal position of the Hall, the system enters a fault mode; and after the motor stops running, the locked rotor fault is cleared, and the ECU returns to the working mode.
7. The electric vehicle door control method according to claim 6, wherein the first step is as follows:
a. the microcontroller detects that the supply voltage transits from normal voltage to undervoltage: the power supply voltage is in a descending trend and reaches a first working point, the microcontroller closes related functions, and the electric vehicle door control system enters under-voltage protection;
b. the microcontroller detects that the power supply voltage is transited from undervoltage to normal voltage: the power supply voltage recovers from the undervoltage to reach a second working point, the microcontroller recovers the related functions, and the electric vehicle door control system releases the undervoltage protection;
c. the microcontroller detects that the power supply voltage is transited from normal voltage to overvoltage: the power supply voltage is in a rising trend and reaches a third working point, the microcontroller closes related functions, and the electric vehicle door control system enters overvoltage protection;
d. the microcontroller detects that the supply voltage transits from overvoltage to normal voltage: and the power supply voltage is recovered from overvoltage to reach a fourth working point, the microcontroller recovers related functions, and the electric vehicle door control system releases overvoltage protection.
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| CN202110748117.8A CN113482487A (en) | 2021-07-02 | 2021-07-02 | Electric vehicle door control system and control method thereof |
| PCT/CN2021/134448 WO2023273145A1 (en) | 2021-07-02 | 2021-11-30 | Electric vehicle door control system and method |
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| CN202110748117.8A CN113482487A (en) | 2021-07-02 | 2021-07-02 | Electric vehicle door control system and control method thereof |
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