阅读说明：本技术 一种电开门锁电机保护策略 (Electric door lock motor protection strategy ) 是由 赵为纲 骆军 杜淮林 曹龙江 李志勇 宋丰源 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种电开门锁电机保护策略,涉及电机保护技术领域,包括,包括策略一、策略二、策略三以及策略四,策略一、策略二、策略三、策略四按照递进方式对电机进行保护；对电机进行保护,先执行策略一,当策略一失效后,执行策略二,当策略一、策略二均失效后,执行策略三,当策略一、策略二及策略三均失效后,执行策略四,该策略在实施时,采用了四种不同的策略方式来实现,进而实现电机在驱动门锁执行器打开汽车电开门锁过程中,全方位的保护,避免了电机因电机通电较长,此时会造成一定时间的电机堵转,因车门开关使用比较多,门锁会频繁的依靠机械结构堵转电机的问题,进而提高了门锁执行器的使用寿命及降低故障几率。(The invention discloses a motor protection strategy for an electric door lock, which relates to the technical field of motor protection and comprises a strategy I, a strategy II, a strategy III and a strategy IV, wherein the strategy I, the strategy II, the strategy III and the strategy IV protect a motor in a progressive mode; the method comprises the steps of protecting a motor, executing a first strategy, executing a second strategy after the first strategy fails, executing a third strategy after the first strategy and the second strategy fail, and executing a fourth strategy after the first strategy, the second strategy and the third strategy fail.)

1. The protection strategy for the electric door lock motor is characterized by comprising a strategy I, a strategy II, a strategy III and a strategy IV, wherein the strategy I, the strategy II, the strategy III and the strategy IV protect the motor in a progressive mode;

protecting the motor, executing the first strategy, executing the second strategy when the first strategy fails, executing the third strategy when the first strategy and the second strategy both fail, and executing the fourth strategy when the first strategy, the second strategy and the third strategy all fail;

in the strategy, the hardware comprises:

the door lock actuator (3) is arranged in the automobile electric door lock and used for driving the automobile electric door lock to be opened and closed;

the motor (3.1) is arranged in the door lock actuator (3) and is used for driving an actuating mechanism in the door lock actuator (3) to make corresponding action;

the sensor (1) is arranged in the automobile electric door lock and used for detecting the position of a lock tongue of the automobile electric door lock;

the control module (2) is in signal connection with the inductor (1) and is used for controlling the working state of the motor (3.1);

the current protection module (2.1) is arranged in the control module (2) and used for monitoring current data of the motor (3.1);

the power transmission timing module (2.2) is arranged in the control module (2) and used for monitoring the current passing time of the motor (3.1);

the thermal protection module (3.11) is arranged in the motor (3.1) and used for preventing the motor (3.1) from being damaged due to overhigh temperature.

2. The electric door lock motor protection strategy according to claim 1, wherein the first strategy comprises an inductor (1), a control module (2), a door lock actuator (3) and a motor (3.1), a signal output end of the inductor (1) is connected in series with a signal input end of the control module (2), a signal output end of the control module (2) is connected in series with a signal input end of the door lock actuator (3), and a signal output end of the door lock actuator (3) is connected in series with a signal input end of the motor (3.1).

3. An electric door lock motor protection strategy according to claim 2, characterized in that the inductor (1) is a hall sensor or a microswitch.

4. The electric door lock motor protection strategy according to claim 1, wherein the strategy two comprises a control module (2), a current protection module (2.1), a door lock actuator (3) and a motor (3.1), the control module (2) is in signal connection with the current protection module (2.1), a data monitoring end of the current protection module (2.1) is in signal connection with the motor (3.1), and a control end of the control module (2) is electrically connected with the motor (3.1).

5. An electric door lock motor protection strategy according to claim 4, characterized in that the current protection module (2.1) is a current sensor.

6. The electric door lock motor protection strategy according to claim 1, characterized in that the strategy three comprises a control module (2), a power transmission timing module (2.2), a door lock actuator (3) and a motor (3.1), wherein the control module (2) is in signal connection with the power transmission timing module (2.2), a data monitoring end of the power transmission timing module (2.2) is in signal connection with the motor (3.1), and a control end of the control module (2) is electrically connected with the motor (3.1).

7. An electric door lock motor protection strategy according to claim 6, characterized in that the power transmission timing module (2.2) is a time controller.

8. The electric door lock motor protection strategy according to claim 1, wherein the strategy four comprises a control module (2), a door lock actuator (3), a motor (3.1) and a thermal protection module (3.11), a control end of the control module (2) is connected in series with a signal receiving end of the thermal protection module (3.11), a data monitoring end of the thermal protection module (3.11) is connected with the motor (3.1) in a signal mode, and a control end of the control module (2) is electrically connected with the motor (3.1).

9. An electric door lock motor protection strategy according to claim 8, characterized in that the thermal protection module (3.11) is a temperature reduction device with a built-in temperature sensor.

Technical Field

The invention relates to the technical field of motor protection, in particular to a motor protection strategy for an electric door lock.

Background

The existing electric door lock for automobile is driven by a motor of an actuator to open the door. In order to reliably enable the door lock to reach the opening position, the motor is electrified for a long time, and the motor can be locked in rotation for a certain time. Because the door switch uses more, the lock can frequent dependence mechanical structure lock-rotor motor, seriously influences the life of lock executor and improves the trouble probability.

To this end, those skilled in the art have addressed the above-mentioned problems by providing a door lock motor protection strategy.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a protection strategy for an electric door lock opening motor, and four protection strategies are provided when the door lock motor is reset, so that the service life of a door lock actuator is prolonged, and the failure probability is reduced.

In order to achieve the purpose, the invention is realized by the following technical scheme: a motor protection strategy for an electric door lock comprises a strategy I, a strategy II, a strategy III and a strategy IV, wherein the strategy I, the strategy II, the strategy III and the strategy IV protect a motor in a progressive mode;

protecting the motor, executing the first strategy, executing the second strategy when the first strategy fails, executing the third strategy when the first strategy and the second strategy both fail, and executing the fourth strategy when the first strategy, the second strategy and the third strategy all fail;

in the strategy, the hardware comprises:

the door lock actuator is arranged in the automobile electric door lock and used for driving the automobile electric door lock to open and close;

the motor is arranged in the door lock actuator and used for driving an actuating mechanism in the door lock actuator to make corresponding action;

the sensor is arranged in the automobile electric door lock and used for detecting the position of a lock tongue of the automobile electric door lock;

the control module is in signal connection with the sensor and is used for controlling the working state of the motor;

the current protection module is arranged in the control module and used for monitoring current data of the motor;

the power transmission timing module is arranged in the control module and used for monitoring the current passing time of the motor;

and the thermal protection module is arranged in the motor and used for preventing the motor from being damaged due to overhigh temperature.

Furthermore, the first strategy comprises an inductor, a control module, a door lock actuator and a motor, wherein the signal output end of the inductor is connected with the signal input end of the control module in series, the signal output end of the control module is connected with the signal input end of the door lock actuator in series, and the signal output end of the door lock actuator is connected with the signal input end of the motor in series.

Further, the sensor is a hall sensor or a microswitch.

Further, the second strategy comprises a control module, a current protection module, a door lock actuator and a motor, wherein the control module is in signal connection with the current protection module, a data monitoring end of the current protection module is in signal connection with the motor, and a control end of the control module is electrically connected with the motor.

Further, the current protection module is a current sensor.

Furthermore, strategy three includes control module, power transmission timing module, lock executor, motor, control module and power transmission timing module signal connection, power transmission timing module data monitoring end and motor signal connection, control module's control end with motor electric connection.

Further, the power transmission timing module is a time controller.

Furthermore, the strategy four comprises a control module, a door lock actuator, a motor and a thermal protection module, wherein the control end of the control module is connected with the signal receiving end of the thermal protection module in series, the data monitoring end of the thermal protection module is connected with the motor through a signal, and the control end of the control module is electrically connected with the motor.

Furthermore, the thermal protection module is a cooling device with a built-in temperature sensor.

Advantageous effects

The invention provides a motor protection strategy for an electric door lock. Compared with the prior art, the method has the following beneficial effects:

the utility model provides an electric power door lock motor protection strategy, has adopted four kinds of different tactics modes to realize, and then realizes that the motor is opening car electric power door lock in-process at drive door lock executor, and omnidirectional protection has avoided the motor longer because of the motor circular telegram, can cause the motor stall of certain time this moment, because of door switch uses than many, the problem of the motor of depending on mechanical structure stall that the lock can be frequent, and then has improved the life of door lock executor and has reduced the fault probability.

Drawings

FIG. 1 is a schematic block diagram of the present invention;

FIG. 2 is a logic diagram of the protection of the electric door lock motor of the present invention;

FIG. 3 is a block diagram of a first embodiment of the present invention;

FIG. 4 is a block diagram of a second embodiment of the present invention;

FIG. 5 is a block diagram of a third embodiment of the present invention;

fig. 6 is a structural schematic framework diagram of strategy four of the present invention.

In the figure: 1. an inductor; 2. a control module; 2.1, a current protection module; 2.2, a power transmission timing module; 3. a door lock actuator; 3.1, a motor; 3.11, a thermal protection module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 3, an embodiment of the present invention further provides a protection strategy for an electric door lock motor, where the strategy includes an inductor 1, a control module 2, a door lock actuator 3, and a motor 3.1, a signal output end of the inductor 1 is connected in series with a signal input end of the control module 2, a signal output end of the control module 2 is connected in series with a signal input end of the door lock actuator 3, a signal output end of the door lock actuator 3 is connected in series with a signal input end of the motor 3.1, and the inductor 1 is a hall sensor or a micro switch.

In the embodiment, when the door lock is actually used, the lock tongue of the door lock reaches the full-open position, the hall sensor or the microswitch is triggered to send a signal to the control module 2, and then the control module 2 stops supplying power to the motor 3.1.

Example 2

Referring to fig. 4, an embodiment of the present invention further provides a protection strategy for an electric door lock and a motor, where the strategy includes a control module 2, a current protection module 2.1, a door lock actuator 3, and a motor 3.1, the control module 2 is in signal connection with the current protection module 2.1, a data monitoring end of the current protection module 2.1 is in signal connection with the motor 3.1, a control end of the control module 2 is electrically connected with the motor 3.1, and the current protection module 2.1 is a current sensor.

In this embodiment, during actual use, the current protection module 2.1 provided in the control module 2 detects the current state of the motor 3.1, and when the current of the motor 3.1 increases to a set parameter, the control module 2 determines that the current is complete and stops.

Example 3

Referring to fig. 5, an embodiment of the present invention further provides a protection strategy for an electric door lock motor, where the strategy includes a control module 2, a power transmission timing module 2.2, a door lock actuator 3, and a motor 3.1, the control module 2 is in signal connection with the power transmission timing module 2.2, a data monitoring end of the power transmission timing module 2.2 is in signal connection with the motor 3.1, a control end of the control module 2 is electrically connected with the motor 3.1, and the power transmission timing module 2.2 is a time controller.

In this embodiment, in actual use, the power transmission timing module 2.2 provided in the control module 2 detects the time when the current is applied to the motor 3.1, and the motor 3.1 finishes and stops after the control module 2 sets the fixed power transmission time.

Example 4

Referring to fig. 6, an embodiment of the present invention further provides a protection strategy for an electric door lock motor, where the strategy includes a control module 2, a door lock actuator 3, a motor 3.1, and a thermal protection module 3.11, a control end of the control module 2 is connected in series with a signal receiving end of the thermal protection module 3.11, a data monitoring end of the thermal protection module 3.11 is connected with the motor 3.1 through a signal, a control end of the control module 2 is electrically connected with the motor 3.1, and the thermal protection module 3.11 is a cooling device with a built-in temperature sensor.

In practical use, the temperature of the motor 3.1 is reduced through the built-in thermal protection module 3.11 in the motor 3.1, and the motor is effectively protected after the thermal protection module 3.11 is started.

In the four embodiments, when the motor is protected, the first strategy, the second strategy, the third strategy and the fourth strategy protect the motor in a progressive manner, that is, the first strategy is executed first, when the first strategy fails, the second strategy is executed, when the first strategy and the second strategy both fail, the third strategy is executed, and when the first strategy, the second strategy and the third strategy all fail, the fourth strategy is executed.

Referring to fig. 1 and fig. 2, in fig. 1, the hardware used in the above four embodiments is integrated into one piece, so that the hardware can perform corresponding functions corresponding to the policies, and in fig. 2, the logicality of the four policies in the implementation process is shown, specifically:

s1, when the lock tongue of the door lock reaches the full-open position, the Hall sensor or the microswitch is triggered to send a signal to the control module 2, and then the control module 2 stops supplying power to the motor 3.1, which is a first strategy;

s2, when the first strategy fails, the current protection module 2.1 is arranged on the control module 2, the current protection module 2.1 can detect the current state of the motor 3.1, and when the current of the motor 3.1 is increased to a set parameter, the control module 2 judges that the current is finished and stops, which is the second strategy;

s3, when both of the first and second policies fail, the power transmission timing module 2.2 of the control module 2 detects the time when the motor 3.1 is powered on, and the motor 3.1 completes and stops after the control module 2 sets the fixed power transmission time, which is policy three;

s4, when the strategy I, the strategy II and the strategy III are all invalid, the temperature of the motor 3.1 is reduced through the built-in thermal protection module 3.11 in the motor 3.1 after the thermal protection module 3.11 is started, and therefore effective protection is achieved.

In conclusion, the protection of the motor is realized by adopting four different strategy modes, so that the motor 3.1 is driven to drive the door lock actuator 3 to open the electric door lock opening process of the automobile, the omnibearing protection is realized, the problem that the motor is blocked for a certain time due to the fact that the motor is electrified for a long time, and the motor is blocked by a mechanical structure due to the fact that the door lock is frequently used by a plurality of door switches is avoided, the service life of the door lock actuator is prolonged, and the fault probability is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.