阅读说明：本技术 一种滑板车控制系统及控制方法 (Scooter control system and control method ) 是由 何初冬 晋文章 于 2021-10-09 设计创作，主要内容包括：本发明公开了一种滑板车控制系统及控制方法,包括电池管理BMS模块,电机驱动模块和重量传感器,所述重量传感器和所述BMS模块电路连接,所述重量传感器和所述电机驱动模块电路连接；所述BMS模块和所述电机驱动模块通信连接；所述BMS模块根据所述重量传感器检测到的重量值设定过流保护值；所述电机驱动模块根据所述重量传感器检测的重量值设定电机的最大转速。通过重量传感器检测滑板车上儿童的重量,根据儿童的重量设定电机驱动模块中电机的最大转速,BMS模块根据儿童的重量设定放电过流保护值,当检测到的重量越轻,电机的最大转速越小,BMS模块的放电过流值越小,反之则越大,提高应用的安全性。(The invention discloses a scooter control system and a control method, comprising a battery management BMS module, a motor driving module and a weight sensor, wherein the weight sensor is in circuit connection with the BMS module, and the weight sensor is in circuit connection with the motor driving module; the BMS module is in communication connection with the motor driving module; the BMS module sets an overcurrent protection value according to the weight value detected by the weight sensor; and the motor driving module sets the maximum rotating speed of the motor according to the weight value detected by the weight sensor. Detect children's weight on the scooter through weight sensor, set for the maximum rotational speed of motor in the motor drive module according to children's weight, the BMS module sets for discharge overcurrent protection value according to children's weight, and the lighter when the weight that detects, the maximum rotational speed of motor is the smaller, and the discharge overcurrent value of BMS module is the smaller, otherwise then is the bigger, improves the security of using.)

1. A scooter control system is characterized by comprising a battery management BMS module, a motor driving module and a weight sensor, wherein the weight sensor is in circuit connection with the BMS module, and the weight sensor is in circuit connection with the motor driving module; the BMS module is in communication connection with the motor driving module; the BMS module is used for setting an overcurrent protection value according to the weight value detected by the weight sensor; and the motor driving module is used for setting the maximum rotating speed of the motor according to the weight value detected by the weight sensor.

2. The scooter control system of claim 1, wherein the BMS module includes a discharge over-current regulation circuit.

3. The scooter control system of claim 2, wherein the discharging overcurrent adjusting circuit comprises a battery pack, a current detection resistor and a discharging MOS switch connected in series, and both ends of the current detection resistor are connected to the first detection control circuit; the first detection control circuit is connected with the discharge MOS switch circuit, and the weight sensor is connected with the first detection control circuit.

4. The scooter control system of claim 3, wherein the first detection control circuit sets an overcurrent protection value according to a weight of the scooter detected by the weight sensor, the first detection control circuit detects a voltage generated across the current detection resistor and determines a magnitude of the discharge current according to the voltage, and the discharge MOS switch is turned off when the discharge current exceeds the set overcurrent protection value.

5. The scooter control system of claim 1, wherein the motor drive module comprises an electrically connected motor and a motor speed adjustment circuit.

6. The scooter control system of claim 5, wherein the motor speed adjustment circuit comprises a second detection control circuit and a motor drive circuit; the second detection control circuit is connected with the motor driving circuit, and the motor driving circuit is connected with the motor circuit; the weight sensor is electrically connected with the second detection control circuit.

7. The scooter control system according to claim 6, wherein the second detection control circuit sets the maximum rotation speed of the motor according to a load weight value of the scooter detected by the weight sensor, and the second detection control circuit controls the motor drive circuit to adjust the maximum rotation speed of the motor.

8. A scooter control method, characterized in that, using the scooter control system according to any one of claims 1-7, comprising the steps of:

acquiring a bearing weight value of the scooter;

the BMS module sets an overcurrent protection value according to the bearing weight value of the scooter;

the motor driving module sets the maximum rotating speed of the motor according to the bearing weight value;

the BMS module detects the magnitude of the discharge current of the battery pack, and turns off the discharge MOS switch when the discharge current of the battery pack exceeds a set current protection value;

and the motor driving module automatically matches the rotating speed of the motor according to the detected bearing weight value.

9. The scooter control method according to claim 8, wherein the relationship between the weight bearing value and the maximum rotation speed of the motor and the discharge overcurrent protection value of the BMS module is:

the smaller the detected bearing weight value is, the smaller the maximum rotating speed of the motor is, the smaller the discharge overcurrent value of the BMS module is, and otherwise, the larger the discharge overcurrent value is.

Technical Field

The invention relates to the technical field of scooter control systems, in particular to a scooter control system and a scooter control method.

Background

Along with the increasing popularity of scooters, electric scooters have appeared, which are vehicles based on traditional manpower skateboards, plus power kits. The electric skateboard is generally divided into a double-wheel drive or a single-wheel drive, the most common transmission modes are a HUB motor (HUB) and a belt drive, and the main power source of the electric skateboard is a lithium battery pack.

The scooter security is the most important in the in-process that uses, and especially it is especially important to children's scooter control, and present children's scooter all can not control the rotational speed of motor and realize overcurrent protection function according to children's weight, has the potential safety hazard.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a scooter control system and method, which can improve the safety of use.

In order to achieve the purpose, the invention adopts the following technical scheme: a scooter control system comprises a battery management BMS module, a motor driving module and a weight sensor, wherein the weight sensor is in circuit connection with the BMS module, and the weight sensor is in circuit connection with the motor driving module; the BMS module is in communication connection with the motor driving module; the BMS module is used for setting an overcurrent protection value according to the weight value detected by the weight sensor; and the motor driving module is used for setting the maximum rotating speed of the motor according to the weight value detected by the weight sensor.

Further, the BMS module includes a discharge overcurrent adjusting circuit.

Furthermore, the discharge overcurrent adjusting circuit comprises a battery pack, a current detection resistor and a discharge MOS switch which are connected in series, wherein two ends of the current detection resistor are connected with the first detection control circuit; the first detection control circuit is connected with the discharge MOS switch circuit, and the weight sensor is connected with the first detection control circuit.

Further, the first detection control circuit sets an overcurrent protection value according to the load weight of the scooter detected by the weight sensor, detects the voltage generated at two ends of the current detection resistor, judges the magnitude of the discharge current according to the voltage, and switches off the discharge MOS switch when the discharge current exceeds the set overcurrent protection value.

Further, the motor driving module comprises a motor and a motor speed adjusting circuit which are electrically connected.

Further, the motor speed adjusting circuit comprises a second detection control circuit and a motor driving circuit; the second detection control circuit is connected with the motor driving circuit, and the motor driving circuit is connected with the motor circuit; the weight sensor is electrically connected with the second detection control circuit.

Further, the second detection control circuit sets the maximum rotation speed of the motor according to the bearing weight of the scooter detected by the weight sensor, and the second detection control circuit controls the motor driving circuit to adjust the maximum rotation speed of the motor.

In another aspect, a scooter control method using the scooter control system includes the following steps:

acquiring a bearing weight value of the scooter;

the BMS module sets an overcurrent protection value according to the bearing weight value;

the motor driving module sets the maximum rotating speed of the motor according to the bearing weight value;

the BMS module detects the magnitude of the discharge current of the battery pack, and turns off the discharge MOS switch when the discharge current of the battery pack exceeds a set current protection value;

and the motor driving module automatically matches the rotating speed of the motor according to the detected bearing weight value.

Further, the relationship between the bearing weight value and the maximum rotating speed of the motor and the discharge overcurrent protection value of the BMS module is as follows:

the smaller the detected bearing weight value is, the smaller the maximum rotating speed of the motor is, the smaller the discharge overcurrent value of the BMS module is, and otherwise, the larger the discharge overcurrent value is.

The invention has the beneficial effects that: the embodiment of the invention provides a scooter control system and a control method, wherein the scooter control system comprises a battery management BMS module, a motor driving module and a weight sensor, wherein the weight sensor is in circuit connection with the BMS module, and the weight sensor is in circuit connection with the motor driving module; the BMS module is in communication connection with the motor driving module; the BMS module sets an overcurrent protection value according to the weight value detected by the weight sensor; and the motor driving module sets the maximum rotating speed of the motor according to the weight value detected by the weight sensor. Detect children's weight on the scooter through weight sensor, set for the maximum rotational speed of motor in the motor drive module according to children's weight, the BMS module sets for discharge overcurrent protection value according to children's weight, and the weight that detects is lighter, and the maximum rotational speed of motor is littleer, and BMS's discharge overcurrent value is littleer, and then is bigger otherwise, improves the security of using.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a block diagram of a scooter control system according to an embodiment of the present invention;

fig. 2 is a block diagram of a discharging overcurrent adjusting circuit of a scooter control system according to an embodiment of the present invention;

fig. 3 is a block diagram of a motor rotation speed adjusting circuit of a scooter control system according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating steps of a scooter control method according to an embodiment of the present invention.

Detailed Description

The embodiment of the invention provides a scooter control system and a scooter control method, which improve the use safety.

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below 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.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. Referring to fig. 1, fig. 1 is a block diagram of a scooter control system according to an embodiment of the present invention.

The first embodiment is as follows:

as shown in fig. 1, a scooter control system includes a battery management BMS module, a motor driving module, and a weight sensor, the weight sensor being electrically connected to the BMS module, the weight sensor being electrically connected to the motor driving module; the BMS module is in communication connection with the motor driving module; the BMS module is used for setting an overcurrent protection value according to the weight value detected by the weight sensor; and the motor driving module is used for setting the maximum rotating speed of the motor according to the weight value detected by the weight sensor.

Specifically, according to the weight that detects children on the scooter through weight sensor, set for the maximum rotational speed of motor among the motor drive module according to children's weight, the BMS module sets for discharge overcurrent protection value according to children's weight, and the lighter when the weight that detects, the maximum rotational speed of motor is less, and BMS's discharge overcurrent value is less, and then is more big otherwise, improves the security of using.

Further, as shown in fig. 2, the BMS module includes a discharge overcurrent adjusting circuit.

Specifically, the overcurrent protection function is realized by arranging a discharge overcurrent adjusting circuit in the BMS module.

Furthermore, the discharge overcurrent adjusting circuit comprises a battery pack, a current detection resistor and a discharge MOS switch which are connected in series, wherein two ends of the current detection resistor are connected with the first detection control circuit; the first detection control circuit is connected with the discharge MOS switch circuit, and the weight sensor is connected with the first detection control circuit.

Specifically, the discharge overcurrent adjusting circuit comprises a battery pack, a current detection resistor and a discharge MOS switch which are connected in series, wherein two ends of the current detection resistor are connected with the first detection control circuit; the first detection control circuit is connected with the discharge MOS switch circuit, and the weight sensor is connected with the first detection control circuit.

Furthermore, the detection control circuit sets an overcurrent protection value according to the bearing weight value of the scooter detected by the weight sensor, the first detection control circuit detects voltages generated at two ends of the current detection resistor, judges the magnitude of the discharge current according to the voltages, and disconnects the discharge MOS switch when the discharge current exceeds the set overcurrent protection value.

Specifically, the discharge overcurrent adjusting circuit is as shown in fig. 2, the first detection control circuit detects the weight of a person on the scooter through the weight sensor, and an overcurrent protection value is set according to the weight; the discharging current of battery flows through current detection resistance, produces voltage at detection resistance both ends, and the voltage signal at first detection control circuit detection circuit both ends judges the size of discharging current, if discharging current has exceeded the electric current protection value of settlement, the disconnection MOS switch that discharges, the disconnection is to the power supply of children's scooter, realizes the overcurrent protection function.

Further, the motor driving module comprises a motor and a motor speed adjusting circuit which are electrically connected.

Specifically, the motor driving module comprises a motor and a motor rotating speed adjusting circuit which are electrically connected.

Further, the motor speed adjusting circuit comprises a second detection control circuit and a motor driving circuit; the second detection control circuit is connected with the motor driving circuit, and the motor driving circuit is connected with the motor circuit; the weight sensor is electrically connected with the second detection control circuit.

Specifically, in this embodiment, as shown in fig. 3, the motor rotation speed adjusting circuit includes a second detection control circuit, and it should be noted that: the second detection control circuit in the embodiment is the detection and control circuit shown in fig. 3;

a motor drive circuit; the second detection control circuit is connected with the motor driving circuit, and the motor driving circuit is connected with the motor circuit; the weight sensor is electrically connected with the second detection control circuit.

Further, the second detection control circuit sets the maximum rotation speed of the motor according to the bearing weight of the scooter detected by the weight sensor, and the second detection control circuit controls the motor driving circuit to adjust the maximum rotation speed of the motor.

Specifically, it should be noted that: the second detection control circuit in the embodiment is the detection and control circuit shown in fig. 3; the motor speed adjusting circuit detects the weight of the person of the child scooter according to the weight sensor, weight data is transmitted to the second detection control circuit, the second detection control circuit detects the rotating speed of the motor according to the weight of the person, the rotating speed of the motor is adjusted through the motor driving circuit, the rotating speed of the motor is set according to the weight of the child, the automatic matching of the weight of the child and the rotating speed of the motor is achieved, effective protection is carried out on the child, and the application safety is improved.

Example two:

a scooter control method, using the scooter control system, comprises the following steps:

step 101: acquiring a bearing weight value of the scooter;

specifically, the bearing weight value of the scooter is obtained through the weight sensor.

Step 102: the BMS module sets an overcurrent protection value according to the bearing weight value;

specifically, the BMS module sets an overcurrent protection value according to the bearing weight value.

Step 103: the motor driving module sets the maximum rotating speed of the motor according to the bearing weight value;

specifically, the motor driving module sets the maximum rotating speed of the motor according to the bearing weight value.

Step 104: the BMS module detects the magnitude of the discharge current of the battery pack, and turns off the discharge MOS switch when the discharge current of the battery pack exceeds a set current protection value;

specifically, the BMS module detects the magnitude of the discharge current of the battery pack, and when the discharge current of the battery pack exceeds a set current protection value, the discharge MOS switch is turned off, so that overcurrent protection is realized, and the safety is improved.

Step 105: and the motor driving module automatically matches the rotating speed of the motor according to the detected bearing weight value.

Specifically, the motor driving module automatically matches the motor rotating speed according to the detected bearing weight value, and the safety is improved.

Further, the relationship between the bearing weight value and the maximum rotating speed of the motor and the discharge overcurrent protection value of the BMS module is as follows:

the smaller the detected bearing weight value is, the smaller the maximum rotating speed of the motor is, the smaller the discharge overcurrent value of the BMS module is, and otherwise, the larger the discharge overcurrent value is. Effectively protect children and improve application safety.

In summary, the embodiment of the present invention provides a scooter control system and method, including a battery management BMS module, a motor driving module and a weight sensor, wherein the weight sensor is electrically connected to the BMS module, and the weight sensor is electrically connected to the motor driving module; the BMS module is in communication connection with the motor driving module; the BMS module sets an overcurrent protection value according to the weight value detected by the weight sensor; and the motor driving module sets the maximum rotating speed of the motor according to the weight value detected by the weight sensor. Detect children's weight on the scooter through weight sensor, set for the maximum rotational speed of motor in the motor drive module according to children's weight, the BMS module sets for discharge overcurrent protection value according to children's weight, and the weight that detects is lighter, and the maximum rotational speed of motor is littleer, and BMS's discharge overcurrent value is littleer, and then is bigger otherwise, improves the security of using.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.