CN115158008B - A control method and control device for a power on-off structure - Google Patents
A control method and control device for a power on-off structure Download PDFInfo
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- CN115158008B CN115158008B CN202210806223.1A CN202210806223A CN115158008B CN 115158008 B CN115158008 B CN 115158008B CN 202210806223 A CN202210806223 A CN 202210806223A CN 115158008 B CN115158008 B CN 115158008B
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 159
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 19
- 210000001503 joint Anatomy 0.000 claims description 128
- 238000001514 detection method Methods 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 11
- 238000005265 energy consumption Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
- B60K2023/085—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles automatically actuated
- B60K2023/0858—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles automatically actuated with electric means, e.g. electro-hydraulic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
本申请提供了一种动力通断结构的控制方法和控制装置，所述控制方法在检测到目标车辆的驾驶模式从节能模式切换到非节能模式时，则确定目标车辆的电机转速和减速器速比的比值与所述动力通断结构关联的车轮转速的差值是否在预设区间；如果在预设区间，则控制传动机构带动第二对接件在第一转动装置的轴线方向往第一转动装置的方向运动，当第二对接件与第一对接件相抵接时，第一对接件跟随第二对接件移动；第一对接件与传导件相接触，且第一对接件的移动能够挤压传导件使第一对接件与第二转动装置同步转动，以使第一对接件能够与第二转动装置相对接，从而完成动力通断结构的接通。
The present application provides a control method and a control device for a power on-off structure. When the control method detects that the driving mode of the target vehicle is switched from the energy-saving mode to the non-energy-saving mode, it determines whether the ratio of the motor speed and the speed ratio of the reducer of the target vehicle and the difference between the wheel speed associated with the power on-off structure are within a preset range; if they are within the preset range, the transmission mechanism is controlled to drive the second docking member to move in the direction of the axis of the first rotating device toward the direction of the first rotating device, and when the second docking member abuts against the first docking member, the first docking member moves with the second docking member; the first docking member contacts the conductive member, and the movement of the first docking member can squeeze the conductive member so that the first docking member and the second rotating device rotate synchronously, so that the first docking member can be connected to the second rotating device, thereby completing the connection of the power on-off structure.
Description
Technical Field
The application relates to the technical field of vehicle accessory control, in particular to a control method and a control device of a power on-off structure.
Background
The four-wheel drive vehicle can transmit the power of the engine to four tires, so that the passing performance and stability of the vehicle can be improved, but correspondingly, the energy consumption of the vehicle can be obviously increased, and the cost of the vehicle is increased. In order to reduce the cost of the vehicle to a certain extent, a power on-off mechanism is added in a transmission system. When the vehicle needs to improve the cross-country passing capability of the vehicle under severe road conditions, the power on-off mechanism is connected, so that the vehicle is in a four-wheel drive state. When the vehicle runs under a better road condition, the power on-off device mechanism enables the vehicle to be in a two-drive state, so that the vehicle cost can be reduced.
The existing power on-off mechanism mostly adopts an electromagnetic attraction mechanism, but no matter in an attraction state or an off state, the electromagnetic attraction mechanism needs to be always electrified to be kept in a corresponding state, so that certain energy loss can be caused, and circuit devices such as heating of a motor can be caused to generate heat due to long-time electrification, so that the running safety of a vehicle is influenced. In addition, if the impact generated in the process of executing the switching-off or switching-on of the synchronizer of the power switching-on structure is too large, the abrasion of the synchronizing ring of the synchronizer is too fast, so that the service life of the power switching-on structure is shortened.
Disclosure of Invention
In view of the above, an object of the present application is to provide a control method and a control device for a power on-off structure, which can reduce the cost of a vehicle while ensuring the safety of the vehicle. .
The embodiment of the application also provides a control method of the power on-off structure, which comprises an on-off device, a first rotating device and a second rotating device;
The axis of the first rotating device is collinear with the axis of the second rotating device, a first butt joint piece is arranged at one end of the first rotating device, which faces the second rotating device, the on-off device comprises a transmission mechanism and a second butt joint piece, the transmission mechanism can drive the second butt joint piece to reciprocate in the axis direction of the first rotating device, and when the second butt joint piece abuts against the first butt joint piece, the first butt joint piece moves along with the second butt joint piece;
The first butt joint part is connected with a first rotating device, the second rotating device is connected with a second rotating device, one end of the second rotating device, which is far away from the second rotating device, is provided with a conducting piece, the first butt joint part is contacted with the conducting piece, and the movement of the first butt joint part can squeeze the conducting piece to enable the first butt joint part and the second rotating device to synchronously rotate, so that the first butt joint part can be in butt joint with the second rotating device;
The control method comprises the following steps:
detecting whether the current driving mode of the target vehicle provided with the power on-off structure is switched or not in real time;
When the driving mode of the target vehicle is detected to be switched from the energy-saving mode to the non-energy-saving mode, determining whether a difference value between the motor rotating speed of the target vehicle and the speed ratio of the speed reducer and the rotating speed of wheels related to the power on-off structure is in a preset interval, if so, controlling the transmission mechanism to drive the second butting piece to move in the direction of the first rotating device in the axis direction of the first rotating device, and when the second butting piece is abutted against the first butting piece, the first butting piece moves along with the second butting piece, wherein the first butting piece is contacted with the conducting piece, and the movement of the first butting piece can press the conducting piece to enable the first butting piece and the second rotating device to synchronously rotate so as to enable the first butting piece to be abutted against the second rotating device, thereby completing the connection of the power on-off structure;
When the driving mode of the target vehicle is detected to be switched from the non-energy-saving mode to the energy-saving mode, the driving motor is controlled to reduce the torque of wheels associated with the power on-off structure, and when the torque is reduced to the preset torque, the transmission mechanism is controlled to drive the second butt joint part to move in the direction away from the second rotating device, so that the first butt joint part and the conducting part which are mutually butt-jointed are gradually separated, and the disconnection of the power on-off structure is completed.
Optionally, the transmission mechanism comprises a power piece, a first transmission assembly, a second transmission assembly and a rack;
the output end of the power piece is connected with one end of the first transmission assembly, the other end of the first transmission assembly is meshed with one end of the second transmission assembly, the other end of the second transmission assembly is meshed with the rack, the rack extends along the axial direction of the first rotating device and is connected with the second butting piece, and a first position detection piece and a second position detection piece are respectively arranged at two ends of the rack;
the control method further includes:
If the difference value between the ratio of the motor speed and the speed reducer speed ratio of the target vehicle and the wheel speed related to the power on-off structure is in a preset interval, controlling the first position sensor to detect whether the rack reaches a first preset position, and if the rack is detected to reach the first preset position, determining that the first butt joint piece of the power on-off structure is successfully butt-jointed with the second rotating device;
And if the first butting piece does not detect that the rack reaches the first preset position within the first preset time, sending a notification of the failure of butting between the first butting piece of the power on-off structure and the second rotating device to a user.
Optionally, the control method further includes:
When the torque is reduced to the preset torque, controlling the second position sensor to detect whether the rack reaches a second preset position, and if so, determining that the first butt joint part of the power on-off structure is successfully separated from the second rotating device;
and if the first butt joint part does not detect that the rack reaches the second preset position within the first preset time, sending a notification of failure in separating the first butt joint part from the second rotating device of the power on-off structure to a user.
Optionally, the first rotating device comprises a first transmission shaft and a gear hub, wherein the first transmission shaft faces one end of the second rotating device, a first meshing part is formed along the circumferential direction of the first transmission shaft, the gear hub is annular, the gear hub is sleeved on the first transmission shaft, a second meshing part is formed on the inner ring of the gear hub, and the first meshing part is meshed with the second meshing part;
The outer wall surface of the gear hub is provided with a third meshing part along the circumferential direction of the gear hub, the first butt joint piece is sleeved outside the gear hub, the inner ring of the first butt joint piece is provided with a fourth meshing part, the third meshing part is meshed with the fourth meshing part, and the first butt joint piece can move along the axial direction relative to the gear hub;
the second rotating device comprises a second transmission shaft, the second transmission shaft faces one end of the first transmission shaft, a fifth meshing part is formed along the circumferential direction of the second transmission shaft, and the fourth meshing part is meshed with the fifth meshing part so as to enable the first transmission shaft and the second transmission shaft to synchronously rotate;
the step of controlling the transmission mechanism to drive the second butt joint part to move in a direction away from the second rotating device comprises the following steps:
the power on-off structure control motor connected with the transmission mechanism is controlled to drive the transmission mechanism to drive the second butt joint part to move in a direction away from the second rotating device;
and controlling a driving motor connected with the first rotating device to drive the second transmission shaft to alternately apply M N and-M N torque under the frequency of N so as to enable the second transmission shaft to shake left and right, wherein N and M are preset real numbers larger than zero.
The embodiment of the application also provides a control device of the power on-off structure, which comprises an on-off device, a first rotating device and a second rotating device;
The axis of the first rotating device is collinear with the axis of the second rotating device, a first butt joint piece is arranged at one end of the first rotating device, which faces the second rotating device, the on-off device comprises a transmission mechanism and a second butt joint piece, the transmission mechanism can drive the second butt joint piece to reciprocate in the axis direction of the first rotating device, and when the second butt joint piece abuts against the first butt joint piece, the first butt joint piece moves along with the second butt joint piece;
The first butt joint part is connected with a first rotating device, the second rotating device is connected with a second rotating device, one end of the second rotating device, which is far away from the second rotating device, is provided with a conducting piece, the first butt joint part is contacted with the conducting piece, and the movement of the first butt joint part can squeeze the conducting piece to enable the first butt joint part and the second rotating device to synchronously rotate, so that the first butt joint part can be in butt joint with the second rotating device;
the control device includes:
the detection module is configured to detect whether the current driving mode of the target vehicle provided with the power on-off structure is switched or not in real time;
A processing module configured to:
When the driving mode of the target vehicle is detected to be switched from the energy-saving mode to the non-energy-saving mode, determining whether a difference value between the motor rotating speed of the target vehicle and the speed ratio of the speed reducer and the rotating speed of wheels related to the power on-off structure is in a preset interval, if so, controlling the transmission mechanism to drive the second butting piece to move in the direction of the first rotating device in the axis direction of the first rotating device, and when the second butting piece is abutted against the first butting piece, the first butting piece moves along with the second butting piece, wherein the first butting piece is contacted with the conducting piece, and the movement of the first butting piece can press the conducting piece to enable the first butting piece and the second rotating device to synchronously rotate so as to enable the first butting piece to be abutted against the second rotating device, thereby completing the connection of the power on-off structure;
When the driving mode of the target vehicle is detected to be switched from the non-energy-saving mode to the energy-saving mode, the driving motor is controlled to reduce the torque of wheels associated with the power on-off structure, and when the torque is reduced to the preset torque, the transmission mechanism is controlled to drive the second butt joint part to move in the direction away from the second rotating device, so that the first butt joint part and the conducting part which are mutually butt-jointed are gradually separated, and the disconnection of the power on-off structure is completed.
Optionally, the transmission mechanism comprises a power piece, a first transmission assembly, a second transmission assembly and a rack;
the output end of the power piece is connected with one end of the first transmission assembly, the other end of the first transmission assembly is meshed with one end of the second transmission assembly, the other end of the second transmission assembly is meshed with the rack, the rack extends along the axial direction of the first rotating device and is connected with the second butting piece, and a first position detection piece and a second position detection piece are respectively arranged at two ends of the rack;
A processing module further configured to:
If the difference value between the ratio of the motor speed and the speed reducer speed ratio of the target vehicle and the wheel speed related to the power on-off structure is in a preset interval, controlling the first position sensor to detect whether the rack reaches a first preset position, and if the rack is detected to reach the first preset position, determining that the first butt joint piece of the power on-off structure is successfully butt-jointed with the second rotating device;
And if the first butting piece does not detect that the rack reaches the first preset position within the first preset time, sending a notification of the failure of butting between the first butting piece of the power on-off structure and the second rotating device to a user.
Optionally, the processing module is further configured to:
When the torque is reduced to the preset torque, controlling the second position sensor to detect whether the rack reaches a second preset position, and if so, determining that the first butt joint part of the power on-off structure is successfully separated from the second rotating device;
and if the first butt joint part does not detect that the rack reaches the second preset position within the first preset time, sending a notification of failure in separating the first butt joint part from the second rotating device of the power on-off structure to a user.
Optionally, the first rotating device comprises a first transmission shaft and a gear hub, wherein the first transmission shaft faces one end of the second rotating device, a first meshing part is formed along the circumferential direction of the first transmission shaft, the gear hub is annular, the gear hub is sleeved on the first transmission shaft, a second meshing part is formed on the inner ring of the gear hub, and the first meshing part is meshed with the second meshing part;
The outer wall surface of the gear hub is provided with a third meshing part along the circumferential direction of the gear hub, the first butt joint piece is sleeved outside the gear hub, the inner ring of the first butt joint piece is provided with a fourth meshing part, the third meshing part is meshed with the fourth meshing part, and the first butt joint piece can move along the axial direction relative to the gear hub;
the second rotating device comprises a second transmission shaft, the second transmission shaft faces one end of the first transmission shaft, a fifth meshing part is formed along the circumferential direction of the second transmission shaft, and the fourth meshing part is meshed with the fifth meshing part so as to enable the first transmission shaft and the second transmission shaft to synchronously rotate;
The processing module is further configured to:
the power on-off structure control motor connected with the transmission mechanism is controlled to drive the transmission mechanism to drive the second butt joint part to move in a direction away from the second rotating device;
Controlling a driving motor connected with the first rotating device to drive the second transmission shaft to alternately apply M N and-M N torque at N frequency so as to enable the second transmission shaft to shake left and right, wherein N and M are preset real numbers larger than zero
The embodiment of the application also provides electronic equipment, which comprises a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, when the electronic equipment is operated, the processor and the memory are communicated through the bus, and when the machine-readable instructions are executed by the processor, the steps of the control method of the power on-off structure are executed.
The embodiment of the application also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to execute the steps of the control method of the power on-off structure.
The control method and the device for the power on-off structure can reduce the cost of the vehicle while ensuring the safety of the vehicle.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of the interior of a housing of a power on-off structure provided by an embodiment of the present application;
Fig. 2 is a schematic diagram showing connection between a first rotating device and a second rotating device in a disconnected state of the power on-off structure according to the embodiment of the present application;
FIG. 3 is a flow chart of a control method of a power on-off structure according to an embodiment of the present application;
FIG. 4 is a schematic view showing the connection of a first drive shaft to a gear hub according to an embodiment of the present application;
FIG. 5 shows a schematic diagram of the structure of a hub in a power on-off structure according to an embodiment of the present application;
fig. 6 shows a schematic structural diagram of a first transmission shaft in the power on-off structure according to the embodiment of the present application;
fig. 7 is a schematic structural diagram of a control device with a power on-off structure according to an embodiment of the present application;
Fig. 8 shows a schematic structural diagram of an electronic device according to an embodiment of the present application.
In the figure, the power part 1-the rack 7-the rack 8-the first position detecting part 9-the first butt joint part 901-the butt joint groove 902-the fourth meshing part 10-the second butt joint part 11-the conducting part 12-the first transmission shaft 1201-the first meshing part 13-the gear hub 1301-the second meshing part 1302-the third meshing part 14-the second bearing part 15-the second transmission shaft 1501-the fifth meshing part 17-the second position detecting part.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, every other embodiment obtained by a person skilled in the art without making any inventive effort falls within the scope of protection of the present application.
Fig. 1 shows a schematic diagram of the structure inside a housing of a power on-off structure provided by an embodiment of the present application, and fig. 2 shows a schematic diagram of connection between a first rotating device and a second rotating device in an off state of the power on-off structure provided by an embodiment of the present application.
Referring to fig. 1 and 2, the application provides a control method of a power on-off structure, wherein the power on-off structure comprises an on-off device, a first rotating device and a second rotating device, the axis of the first rotating device is collinear with the axis of the second rotating device, a first abutting piece 9 is arranged at one end of the first rotating device, which faces the second rotating device, the on-off device comprises a transmission mechanism and a second abutting piece 10, the transmission mechanism can drive the second abutting piece 10 to reciprocate in the axis direction of the first rotating device, when the second abutting piece 10 abuts against the first abutting piece 9, the first abutting piece 9 moves along with the second abutting piece 10, one end of the second rotating device, which faces the first rotating device, is provided with a conducting piece 11, the first abutting piece 9 is in contact with the conducting piece 11, the movement of the first abutting piece 9 can press the conducting piece 11 to enable the first abutting piece 9 to reciprocate in the axis direction of the first rotating device, when the second abutting piece 10 abuts against the first abutting piece 9, the first rotating device can be connected with a first end of the first rotating device, which is far away from a first rotating device, and the first rotating device can be connected with a first end of a vehicle, and the first rotating device can be far away from a target rotating device.
In the application, the conducting piece 11 is annular, and the conducting piece 11 is sleeved on one end of the second rotating device facing the first rotating device and can move relative to the second rotating device to a certain extent. When the conducting piece 11 and the second rotating device are in virtual contact, the conducting piece 11 and the second rotating device can move independently, and when the first butt joint piece 9 moves towards the direction close to the second rotating device, axial thrust can be applied to the conducting piece 11, so that the conducting piece 11 gradually hoops the second rotating device, friction force between the conducting piece 11 and the second rotating device is increased, further locking between the conducting piece 11 and the second rotating device can be achieved through friction, and the purpose that power of the first rotating device is transmitted to the second rotating device is achieved.
The virtual contact finger conductive member 11 and the second rotating means have a contact relationship therebetween, but do not generate a force. According to the power on-off structure provided by the application, the second butt joint part 10 can be driven to reciprocate along the axis of the first rotating device through the transmission mechanism, and because the first butt joint part 9 is arranged at one end of the first rotating device facing the second rotating device, and when the second butt joint part 10 moves towards the direction approaching the second rotating device and is abutted against the first butt joint part 9, the second butt joint part 10 can drive the first butt joint part 9 to move towards the direction approaching the second rotating device, so that axial thrust can be generated on the guide part 11 through the movement of the first butt joint part 9, the guide part 11 can be clamped against one end of the second rotating device facing the first rotating device, the friction force between the guide part 11 and the second rotating device is increased, and the second rotating device can synchronously rotate along with the guide part 11, so that the first rotating device and the second rotating device can synchronously rotate.
Fig. 3 shows a flowchart of a control method of a power on-off structure according to an embodiment of the present application, as shown in fig. 3, where the control method of the power on-off structure includes:
S101, detecting whether the current driving mode of the target vehicle provided with the power on-off structure is switched or not in real time.
Here, the driving mode refers to different driving modes according to the performance of the automobile, for example, a general driving mode of the vehicle generally includes an energy saving mode (ECO mode), a sport mode, a standard mode, and a comfort mode, and if the vehicle is an off-road vehicle, a mud mode, a desert mode, a rock road mode, and the like. In the context of the present application, driving modes may be classified into two types, one being an energy saving mode (e.g., ECO mode) and the other being a non-energy saving mode (e.g., a sport mode other than ECO mode, a standard mode, a comfort mode, a mud mode, a desert mode, a rock road surface mode, etc.), as examples.
And S102, when the driving mode of the target vehicle is detected to be switched from the energy-saving mode to the non-energy-saving mode, determining whether a difference value between the rotation speed of a driving motor of the target vehicle and the rotation speed of a wheel related to the power on-off structure is in a preset interval, if so, controlling the transmission mechanism to drive the second butting piece 10 to move in the direction of the first rotating device along the axis direction of the first rotating device, and when the second butting piece 10 is abutted against the first butting piece 9, the first butting piece 9 moves along with the second butting piece 10, wherein the first butting piece 9 is contacted with the conducting piece 11, and the movement of the first butting piece 9 can press the conducting piece 11 to enable the first butting piece 9 to synchronously rotate with the second rotating device, so that the power on-off structure is completed.
When it is detected that the driving mode of the target vehicle is switched from the energy-saving mode to the non-energy-saving mode, this means that the passing capability of the target vehicle needs to be improved, and the speed reducer needs to be connected to the train, so that the second docking member 10 is driven by the transmission mechanism to move in a direction approaching the second rotating device, so that the power output by the speed reducer can be transmitted to the second rotating device by the first rotating device, the first rotating device and the second rotating device can be rotated synchronously, the train can obtain the power supplied by the vehicle engine, and the passing capability is improved.
In particular, since the end of the first rotating device, which is far away from the second rotating device, is connected with the wheels of the vehicle, the end of the second rotating device, which is far away from the first rotating device, is connected with the speed reducer of the vehicle. Therefore, in order to improve the passing capability of the vehicle, when the driving mode of the target vehicle is detected to be switched from the energy-saving mode to the non-energy-saving mode, the driving motor speed and the speed reducer speed ratio of the target vehicle can be obtained, the ratio of the driving motor speed to the speed reducer speed ratio of the target vehicle is determined, when the difference value between the ratio of the motor speed to the speed reducer speed ratio of the target vehicle and the wheel speed related to the power on-off structure is in a preset interval, the transmission mechanism can be controlled to drive the second butting piece 10 to move towards the first rotating device in the axis direction of the first rotating device, when the second butting piece 10 butts against the first butting piece 9, the first butting piece 9 moves along with the second butting piece 10, the first butting piece 10 is in contact with the conducting piece 11, and the movement of the first butting piece 9 can squeeze the conducting piece 11 to synchronously rotate the first butting piece 9 and the second rotating device, so that the power on-off structure can be completed.
By taking the range of the speed difference of the first rotating device and the second rotating device into consideration, the synchronous rotating effect is achieved, the problem that teeth are bumped and damaged in the process of butt joint of the first butt joint piece 10 and the second rotating device can be avoided to a certain extent, and a guarantee is provided for successful completion of the connection of the power on-off structure.
And S103, when the driving mode of the target vehicle is detected to be switched from the non-energy-saving mode to the energy-saving mode, controlling a driving motor to reduce the torque of wheels associated with the power on-off structure, and when the torque is reduced to the preset torque, controlling the transmission mechanism to drive the second butting piece 10 to move in the direction away from the second rotating device so as to gradually separate the first butting piece 9 and the conducting piece 11 which are mutually butted.
When it is detected that the driving mode of the target vehicle is switched from the non-energy-saving mode to the energy-saving mode, which means that the energy consumption of the target vehicle needs to be reduced, the transmission mechanism drives the second butting member 10 to move away from the second rotating device, so that the first butting member 9 can be driven to move away from the second rotating device, the first butting member 9 and the conducting member 11 are gradually separated, the power of the first rotating device cannot be transmitted to the second rotating device again, the gear train is in a driven state, that is, the vehicle is changed from the four-wheel driving state to the two-wheel driving state, and the energy consumption of the vehicle is reduced.
Specifically, in order to reduce the energy consumption of the target vehicle, when the driving mode of the target vehicle is detected to be switched from the non-energy-saving mode to the energy-saving mode, the driving motor is controlled to reduce the torque of the wheels associated with the power on-off structure, when the torque is reduced to a preset torque, for example, the preset torque is 0, when the torque is reduced to 0, which means that the difference between the speeds of the first rotating device and the second rotating device is reduced, when the torque is reduced to 0, the driving mechanism is controlled to drive the second butting piece 10 to move in a direction away from the second rotating device, so that the first butting piece and the conducting piece which are butted with each other are gradually separated, and the disconnection of the power on-off structure is completed.
In addition, the transmission mechanism comprises a power piece 1, a first transmission assembly, a second transmission assembly and a rack 7, wherein the output end of the power piece 1 is connected with one end of the first transmission assembly, the other end of the first transmission assembly is meshed with one end of the second transmission assembly, the other end of the second transmission assembly is meshed with the rack 7, the rack 7 extends along the axial direction of the first rotating device, the rack 7 is connected with the second butting piece, a first position detecting piece 8 and a second position detecting piece 17 are respectively arranged at two ends of the rack 7, and when the first position detecting piece 8 or the second position detecting piece 17 detects the rack 7, the rack 7 stops moving.
As an example, in the power on-off structure provided above, when it is detected that the driving mode of the target vehicle is switched from the energy saving mode to the non-energy saving mode, the control method may additionally include the steps of (not shown in fig. 3):
And if the ratio of the motor speed of the target vehicle to the speed ratio of the speed reducer and the wheel speed related to the power on-off structure are in a preset interval, controlling the first position sensor 8 to detect whether the rack 7 reaches a first preset position, and if the rack 7 is detected to reach the first preset position, determining that the first butting piece 9 of the power on-off structure is successfully butted with the second rotating device.
If the first butting piece 9 does not detect that the rack 7 reaches the first preset position within the first preset time, a notification of failed butting of the first butting piece 9 and the second rotating device of the power on-off structure is sent to a user.
As another example, in the power on-off structure provided above, when it is detected that the driving mode of the target vehicle is switched from the non-energy saving mode to the energy saving mode, the control method further includes:
When the torque is reduced to the preset torque, the second position detecting member 17 is controlled to detect whether the rack 7 reaches a second preset position, and if the rack 7 is detected to reach the second preset position, the first butting member 9 of the power on-off structure is determined to be successfully separated from the second rotating device.
If the first docking member 9 does not detect that the rack 7 reaches the second predetermined position within the first predetermined time, a notification of failure in separation of the first docking member 9 from the second rotating means of the power on-off structure is sent to a user.
Referring to fig. 4 to 6, further, as an example, the outer wall surface of the hub 13 of the present application is formed with a third engaging portion 1302 along the circumferential direction of the hub 13, the first butt joint 9 is sleeved outside the hub 13, the inner ring of the first butt joint 9 is formed with a fourth engaging portion 902, the third engaging portion 1302 is engaged with the fourth engaging portion 902, and the first butt joint 9 is capable of moving in the axial direction with respect to the hub 13.
The power can be transmitted to the first butt joint 9 by the engagement between the fourth engagement portion 902 of the first butt joint 9 and the third engagement portion 1302 formed by the outer ring of the hub gear 13. Therefore, the first rotating device provided by the application synchronously rotates the first transmission shaft 12, the gear hub 13 and the first butting piece 9 when rotating.
Further, the second rotating device of the present application includes a second driving shaft 15, the second driving shaft 15 faces one end of the first driving shaft 12, and a fifth engaging portion 1501 is formed along the circumferential direction of the second driving shaft 15, and the fourth engaging portion 902 engages with the fifth engaging portion 1501 to rotate the first driving shaft 12 and the second driving shaft 15 synchronously.
In the present application, one end of the second transmission shaft 15 far from the first transmission shaft 12 is connected with the gear train, and preferably, as shown in fig. 2, in order to ensure stable connection between the second transmission shaft 15 and the gear train, one end of the second transmission shaft 15 far from the first transmission shaft 12 is formed with a spline, so that stable connection between the second transmission shaft 15 and the gear train can be ensured to a certain extent.
When the vehicle is in a two-drive state, the second transmission shaft 15 and the first transmission shaft 12 move independently, when the vehicle is required to be converted from the two-drive state to the four-drive state, the power piece 1 is started, power is transmitted to the first turbine 3 through the worm 2, and the first turbine 3 is meshed with the second turbine 5, so that the power can be transmitted to the second turbine 5, and the gear 6 and the second turbine 5 are coaxially arranged, so that when the second turbine 5 rotates, the gear 6 can be driven to rotate, and then the rack 7 meshed with the gear 6 can be driven to move in a direction approaching to the second transmission shaft 15, so that the second butt joint piece 10 is driven to move in a direction approaching to the second transmission shaft 15.
When the end surface of the second butt joint part 10 is abutted with the end surface of the butt joint groove 901 on the first butt joint part 9 facing to one side of the second transmission shaft 15, the first butt joint part 9 can be driven to move in the direction approaching to the second transmission shaft 15.
Since the inner ring of the first butting member 9 forms the fourth engagement portion 902 and the fourth engagement portion 902 needs to be engaged with the fifth engagement portion 1501 on the second transmission shaft 15 when the vehicle is converted into four-wheel drive in the present application, the second transmission shaft 15 and the first butting member 9 need to be rotated synchronously before the fourth engagement portion 902 and the fifth engagement portion 1501 are engaged, so that the problem of tooth collision damage between the fourth engagement portion 902 and the fifth engagement portion 1501 can be avoided to some extent.
By the conductive piece 11 arranged between the first butt joint piece 9 and the second transmission shaft 15, the conductive piece 11 can be extruded in the process that the first butt joint piece 9 moves towards the direction approaching to the second transmission shaft 15, so that the conductive piece 11 can tightly hold the second transmission shaft 15, and synchronous rotation between the second transmission shaft 15 and the first butt joint piece 9 can be realized.
Then, the second butting member 10 continues to drive the first butting member 9 to move towards the direction approaching the second transmission shaft 15, and because the second transmission shaft 15 and the first butting member 9 synchronously rotate, gradual engagement between the fourth engagement portion 902 and the fifth engagement portion 1501 can be realized through continuous movement of the first butting member 9, so that synchronous movement of the first transmission shaft 12 and the second transmission shaft 15 can be realized, and further, the purpose of transmitting power of the speed reducer to the second transmission shaft 15 until a gear train is realized.
As an example, regarding the step of controlling the transmission mechanism to drive the second butting member to move in a direction away from the second rotating device, in a specific implementation, the second butting member may be controlled to move away from the second rotating device by controlling a power on-off structure connected with the transmission mechanism to control a motor to drive the transmission mechanism to drive the second butting member to move in a direction away from the second rotating device, and simultaneously controlling a driving motor connected with the first rotating device to drive the second transmission shaft 15 to alternately apply a torque of M newtons and-M newtons at N frequency so as to shake the second transmission shaft left and right, where N and M are preset real numbers greater than zero. Here, N and M may be values determined empirically, and may be set according to actual situations, which are not described herein. By means of the mode, under the condition that the disconnection of the power on-off structure is controlled, the first butt joint part 9 and the second transmission shaft 15 can shake left and right by applying positive and negative torque, the situation that the first butt joint part 9 and the second transmission shaft 15 cannot be disconnected due to splines is avoided, and the smoothness of the disconnection of the power on-off structure is guaranteed.
The control method of the power on-off structure provided by the embodiment of the application can reduce the cost of the vehicle while ensuring the safety of the vehicle.
Based on the same inventive concept, the embodiment of the application also provides a control device corresponding to a control method of a power on-off structure, and because the principle of solving the problem of the device in the embodiment of the application is similar to that of the control method of the power on-off structure in the embodiment of the application, the implementation of the device can refer to the implementation of the method, and the repetition is omitted.
Referring to fig. 7, fig. 3 is a schematic structural diagram of a control device with a power on-off structure according to an embodiment of the present application, and fig. 7 is a schematic structural diagram of a control device with a power on-off structure according to another embodiment of the present application. Here, the power on-off structure is the same as the structure mentioned in the foregoing method, and the present application is not repeated here. As shown in fig. 7, the control device of the power on-off structure includes:
The power on-off structure comprises a detection module 100 configured to detect whether the current driving mode of a target vehicle provided with the power on-off structure is switched in real time, a processing module 200 configured to determine whether the difference value between the ratio of the motor rotating speed of the target vehicle and the speed ratio of a speed reducer and the rotating speed of a wheel associated with the power on-off structure is in a preset interval when the driving mode of the target vehicle is detected to be switched from an energy saving mode to a non-energy saving mode, and if the difference value is in the preset interval, control the transmission mechanism to drive the second butting piece to move towards the first rotating device in the axis direction of the first rotating device, and drive the first butting piece to move along with the second butting piece when the second butting piece abuts against the first butting piece, wherein the first butting piece is contacted with the transmission piece, and the movement of the first butting piece can squeeze the transmission piece to enable the first butting piece to rotate synchronously with the second rotating device, so that the power on-off structure can be connected with the second rotating device.
When the driving mode of the target vehicle is detected to be switched from the non-energy-saving mode to the energy-saving mode, the driving motor reduces the torque of wheels associated with the power on-off structure, and when the torque is reduced to the preset torque, the driving mechanism is controlled to drive the second butt joint part to move in the direction away from the second rotating device, so that the first butt joint part and the conducting part which are mutually butt-jointed are gradually separated, and the disconnection of the power on-off structure is completed.
Optionally, the processing module 200 is further configured to:
If the difference between the ratio of the motor speed and the speed reducer speed ratio of the target vehicle and the wheel speed related to the power on-off structure is in a preset interval, controlling the first position sensor to detect whether the rack reaches a first preset position, and if the rack is detected to reach the first preset position, determining that the first butt joint piece of the power on-off structure is successfully in butt joint with the second rotating device.
And if the first butting piece does not detect that the rack reaches the first preset position within the first preset time, sending a notification of the failure of butting between the first butting piece of the power on-off structure and the second rotating device to a user.
Optionally, the processing module 200 is further configured to:
And after the torque is reduced to the preset torque, controlling the second position sensor to detect whether the rack reaches a second preset position, and if so, determining that the first butt joint part of the power on-off structure is successfully separated from the second rotating device.
And if the first butt joint part does not detect that the rack reaches the second preset position within the first preset time, sending a notification of failure in separating the first butt joint part from the second rotating device of the power on-off structure to a user.
Optionally, the processing module 200 is further configured to:
the power on-off structure control motor connected with the transmission mechanism is controlled to drive the transmission mechanism to drive the second butt joint part to move in a direction away from the second rotating device;
and controlling a driving motor connected with the first rotating device to drive the second transmission shaft 15 to alternately apply torque of M Newton and-M Newton at the frequency of N so as to enable the second transmission shaft to shake left and right, wherein N and M are preset real numbers larger than zero.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the application. As shown in fig. 5, the electronic device 500 includes a processor 510, a memory 520, and a bus 530.
The memory 520 stores machine-readable instructions executable by the processor 510, when the electronic device 500 is running, the processor 510 communicates with the memory 520 through the bus 530, and when the machine-readable instructions are executed by the processor 510, the steps of the method for controlling the power on-off structure in the method embodiment shown in fig. 3 can be executed, and the specific implementation manner can be referred to the method embodiment and will not be described herein.
The embodiment of the present application further provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the steps of the method for controlling a power on-off structure in the method embodiment shown in fig. 3 may be executed, and a specific implementation manner may refer to the method embodiment and will not be described herein.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
It should be noted that the foregoing embodiments are merely illustrative embodiments of the present application, and not restrictive, and the scope of the application is not limited to the embodiments, and although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any modification, variation or substitution of some of the technical features of the embodiments described in the foregoing embodiments may be easily contemplated within the scope of the present application, and the spirit and scope of the technical solutions of the embodiments do not depart from the spirit and scope of the embodiments of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (10)
1. The control method of the power on-off structure is characterized in that the power on-off structure comprises an on-off device, a first rotating device and a second rotating device;
The axis of the first rotating device is collinear with the axis of the second rotating device, a first butt joint piece is arranged at one end of the first rotating device, which faces the second rotating device, the on-off device comprises a transmission mechanism and a second butt joint piece, the transmission mechanism can drive the second butt joint piece to reciprocate in the axis direction of the first rotating device, and when the second butt joint piece abuts against the first butt joint piece, the first butt joint piece moves along with the second butt joint piece;
The first butt joint part is connected with a first rotating device, the second rotating device is connected with a second rotating device, one end of the second rotating device, which is far away from the second rotating device, is provided with a conducting piece, the first butt joint part is contacted with the conducting piece, and the movement of the first butt joint part can squeeze the conducting piece to enable the first butt joint part and the second rotating device to synchronously rotate, so that the first butt joint part can be in butt joint with the second rotating device;
The control method comprises the following steps:
detecting whether the current driving mode of the target vehicle provided with the power on-off structure is switched or not in real time;
When the driving mode of the target vehicle is detected to be switched from the energy-saving mode to the non-energy-saving mode, determining whether a difference value between the motor rotating speed of the target vehicle and the speed ratio of the speed reducer and the rotating speed of wheels related to the power on-off structure is in a preset interval, if so, controlling the transmission mechanism to drive the second butting piece to move in the direction of the first rotating device in the axis direction of the first rotating device, and when the second butting piece is abutted against the first butting piece, the first butting piece moves along with the second butting piece, wherein the first butting piece is contacted with the conducting piece, and the movement of the first butting piece can press the conducting piece to enable the first butting piece and the second rotating device to synchronously rotate so as to enable the first butting piece to be abutted against the second rotating device, thereby completing the connection of the power on-off structure;
When the driving mode of the target vehicle is detected to be switched from the non-energy-saving mode to the energy-saving mode, the driving motor is controlled to reduce the torque of wheels associated with the power on-off structure, and when the torque is reduced to the preset torque, the transmission mechanism is controlled to drive the second butt joint part to move in the direction away from the second rotating device, so that the first butt joint part and the conducting part which are mutually butt-jointed are gradually separated, and the disconnection of the power on-off structure is completed.
2. The control method of claim 1, wherein the transmission mechanism comprises a power member, a first transmission assembly, a second transmission assembly, and a rack;
the output end of the power piece is connected with one end of the first transmission assembly, the other end of the first transmission assembly is meshed with one end of the second transmission assembly, the other end of the second transmission assembly is meshed with the rack, the rack extends along the axial direction of the first rotating device and is connected with the second butting piece, and a first position detection piece and a second position detection piece are respectively arranged at two ends of the rack;
the control method further includes:
If the difference value between the ratio of the motor speed and the speed reducer speed ratio of the target vehicle and the wheel speed related to the power on-off structure is in a preset interval, controlling the first position detection part to detect whether the rack reaches a first preset position, and if the rack is detected to reach the first preset position, determining that the first butt joint part of the power on-off structure is successfully butt-jointed with the second rotating device;
And if the first butting piece does not detect that the rack reaches the first preset position within the first preset time, sending a notification of the failure of butting between the first butting piece of the power on-off structure and the second rotating device to a user.
3. The control method according to claim 2, characterized in that the control method further comprises:
When the torque is reduced to the preset torque, controlling the second position detection part to detect whether the rack reaches a second preset position, and if so, determining that the first butt joint part of the power on-off structure is successfully separated from the second rotating device;
And if the first butting piece does not detect that the rack reaches the second preset position within the second preset time, sending a notification of failure in separating the first butting piece from the second rotating device of the power on-off structure to a user.
4. The control method according to claim 1, wherein the first rotating device includes a first transmission shaft and a gear hub, the first transmission shaft faces one end of the second rotating device, a first engagement portion is formed along a circumferential direction of the first transmission shaft, the gear hub is annular, the gear hub is sleeved on the first transmission shaft, a second engagement portion is formed on an inner ring of the gear hub, and the first engagement portion is engaged with the second engagement portion;
The outer wall surface of the gear hub is provided with a third meshing part along the circumferential direction of the gear hub, the first butt joint piece is sleeved outside the gear hub, the inner ring of the first butt joint piece is provided with a fourth meshing part, the third meshing part is meshed with the fourth meshing part, and the first butt joint piece can move along the axial direction relative to the gear hub;
the second rotating device comprises a second transmission shaft, the second transmission shaft faces one end of the first transmission shaft, a fifth meshing part is formed along the circumferential direction of the second transmission shaft, and the fourth meshing part is meshed with the fifth meshing part so as to enable the first transmission shaft and the second transmission shaft to synchronously rotate;
the step of controlling the transmission mechanism to drive the second butt joint part to move in a direction away from the second rotating device comprises the following steps:
the power on-off structure control motor connected with the transmission mechanism is controlled to drive the transmission mechanism to drive the second butt joint part to move in a direction away from the second rotating device;
and controlling a driving motor connected with the first rotating device to drive the second transmission shaft to alternately apply M N and-M N torque under the frequency of N so as to enable the second transmission shaft to shake left and right, wherein N and M are preset real numbers larger than zero.
5. The control device of the power on-off structure is characterized by comprising an on-off device, a first rotating device and a second rotating device;
The axis of the first rotating device is collinear with the axis of the second rotating device, a first butt joint piece is arranged at one end of the first rotating device, which faces the second rotating device, the on-off device comprises a transmission mechanism and a second butt joint piece, the transmission mechanism can drive the second butt joint piece to reciprocate in the axis direction of the first rotating device, and when the second butt joint piece abuts against the first butt joint piece, the first butt joint piece moves along with the second butt joint piece;
The first butt joint part is connected with a first rotating device, the second rotating device is connected with a second rotating device, one end of the second rotating device, which is far away from the second rotating device, is provided with a conducting piece, the first butt joint part is contacted with the conducting piece, and the movement of the first butt joint part can squeeze the conducting piece to enable the first butt joint part and the second rotating device to synchronously rotate, so that the first butt joint part can be in butt joint with the second rotating device;
the control device includes:
the detection module is configured to detect the current driving mode of the target vehicle provided with the power on-off structure in real time;
A processing module configured to:
When the driving mode of the target vehicle is detected to be switched from the energy-saving mode to the non-energy-saving mode, determining whether a difference value between the motor rotating speed of the target vehicle and the speed ratio of the speed reducer and the rotating speed of wheels related to the power on-off structure is in a preset interval, if so, controlling the transmission mechanism to drive the second butting piece to move in the direction of the first rotating device in the axis direction of the first rotating device, and when the second butting piece is abutted against the first butting piece, the first butting piece moves along with the second butting piece, wherein the first butting piece is contacted with the conducting piece, and the movement of the first butting piece can press the conducting piece to enable the first butting piece and the second rotating device to synchronously rotate so as to enable the first butting piece to be abutted against the second rotating device, thereby completing the connection of the power on-off structure;
When the driving mode of the target vehicle is detected to be switched from the non-energy-saving mode to the energy-saving mode, the driving motor reduces the torque of wheels associated with the power on-off structure, and when the torque is reduced to the preset torque, the driving mechanism is controlled to drive the second butt joint part to move in the direction away from the second rotating device, so that the first butt joint part and the conducting part which are mutually butt-jointed are gradually separated, and the disconnection of the power on-off structure is completed.
6. The control device of claim 5, wherein the transmission mechanism comprises a power member, a first transmission assembly, a second transmission assembly, and a rack;
the output end of the power piece is connected with one end of the first transmission assembly, the other end of the first transmission assembly is meshed with one end of the second transmission assembly, the other end of the second transmission assembly is meshed with the rack, the rack extends along the axial direction of the first rotating device and is connected with the second butting piece, and a first position detection piece and a second position detection piece are respectively arranged at two ends of the rack;
A processing module further configured to:
If the difference value between the ratio of the motor speed and the speed reducer speed ratio of the target vehicle and the wheel speed related to the power on-off structure is in a preset interval, controlling the first position detection part to detect whether the rack reaches a first preset position, and if the rack is detected to reach the first preset position, determining that the first butt joint part of the power on-off structure is successfully butt-jointed with the second rotating device;
And if the first butting piece does not detect that the rack reaches the first preset position within the first preset time, sending a notification of the failure of butting between the first butting piece of the power on-off structure and the second rotating device to a user.
7. The control device of claim 6, wherein the processing module is further configured to:
When the torque is reduced to the preset torque, controlling the second position detection part to detect whether the rack reaches a second preset position, and if so, determining that the first butt joint part of the power on-off structure is successfully separated from the second rotating device;
and if the first butt joint part does not detect that the rack reaches the second preset position within the first preset time, sending a notification of failure in separating the first butt joint part from the second rotating device of the power on-off structure to a user.
8. The control device according to claim 5, wherein the first rotating device comprises a first transmission shaft and a gear hub, wherein the first transmission shaft faces one end of the second rotating device, a first meshing part is formed along the circumferential direction of the first transmission shaft, the gear hub is annular, the gear hub is sleeved on the first transmission shaft, a second meshing part is formed on the inner ring of the gear hub, and the first meshing part is meshed with the second meshing part;
The outer wall surface of the gear hub is provided with a third meshing part along the circumferential direction of the gear hub, the first butt joint piece is sleeved outside the gear hub, the inner ring of the first butt joint piece is provided with a fourth meshing part, the third meshing part is meshed with the fourth meshing part, and the first butt joint piece can move along the axial direction relative to the gear hub;
the second rotating device comprises a second transmission shaft, the second transmission shaft faces one end of the first transmission shaft, a fifth meshing part is formed along the circumferential direction of the second transmission shaft, and the fourth meshing part is meshed with the fifth meshing part so as to enable the first transmission shaft and the second transmission shaft to synchronously rotate;
The processing module is further configured to:
the power on-off structure control motor connected with the transmission mechanism is controlled to drive the transmission mechanism to drive the second butt joint part to move in a direction away from the second rotating device;
and controlling a driving motor connected with the first rotating device to drive the second transmission shaft to alternately apply M N and-M N torque under the frequency of N so as to enable the second transmission shaft to shake left and right, wherein N and M are preset real numbers larger than zero.
9. An electronic device comprising a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium in communication over the bus when the electronic device is in operation, the processor executing the machine-readable instructions to perform the steps of the method of any one of claims 1 to 4.
10. A computer-readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, performs the steps of the method according to any of claims 1 to 4.
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| CN202210806223.1A CN115158008B (en) | 2022-07-08 | 2022-07-08 | A control method and control device for a power on-off structure |
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| CN202210806223.1A CN115158008B (en) | 2022-07-08 | 2022-07-08 | A control method and control device for a power on-off structure |
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| CN115158008B true CN115158008B (en) | 2025-02-07 |
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| CN110821983A (en) * | 2018-08-09 | 2020-02-21 | 丰田自动车株式会社 | four wheel drive vehicle |
| CN113124154A (en) * | 2021-03-31 | 2021-07-16 | 华为技术有限公司 | Gear shifting mechanism, transmission, power assembly and electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2550160B (en) * | 2016-05-10 | 2018-11-14 | Jaguar Land Rover Ltd | Vehicle driveline disconnect method and apparatus |
| CN114458702B (en) * | 2022-02-18 | 2023-06-02 | 中国第一汽车股份有限公司 | Speed reducer disconnecting device, speed reducer and vehicle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821983A (en) * | 2018-08-09 | 2020-02-21 | 丰田自动车株式会社 | four wheel drive vehicle |
| CN113124154A (en) * | 2021-03-31 | 2021-07-16 | 华为技术有限公司 | Gear shifting mechanism, transmission, power assembly and electric vehicle |
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