CN114572003A - Distributed hub motor power supply system, integrated chassis structure and new energy automobile - Google Patents
Distributed hub motor power supply system, integrated chassis structure and new energy automobile Download PDFInfo
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- CN114572003A CN114572003A CN202210213946.0A CN202210213946A CN114572003A CN 114572003 A CN114572003 A CN 114572003A CN 202210213946 A CN202210213946 A CN 202210213946A CN 114572003 A CN114572003 A CN 114572003A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/425—Temperature
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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
Abstract
The invention provides a distributed hub motor power supply system, which comprises: a power module and a control module; wherein: the number of the power modules corresponds to the number of wheels, and each power module is respectively connected with the control module; each power module respectively comprises: the energy storage unit, the hub motor and the wheel are arranged on the frame; the output end of the energy storage unit is connected with the input end of the hub motor, and the output end of the hub motor is connected with the corresponding wheel; each power module is configured to: responding to control of the control module to provide power for the corresponding wheel; under the condition that part of the power modules have faults, the power modules which do not have faults operate independently to drive the wheels which correspond to the faults to run; the energy storage unit is used for: and independently supplying power to the hub motor in each power module.
Description
Technical Field
The invention relates to the field of new energy automobiles, in particular to a distributed hub motor power supply system, an integrated chassis structure and a new energy automobile.
Background
The hub motor is designed by integrating a power system, a transmission system and a brake system of an automobile.
The prior art generally adopts a battery pack to supply power to four hub motors, and the scheme has the following disadvantages: if the battery pack breaks down, the maintenance cost of one battery pack is high, and all wheels stop working when the battery pack breaks down; if the wheel track and the wheel base of the automobile are changed, all the wire harnesses between one battery pack and the four wheel hubs need to be adjusted.
Disclosure of Invention
The invention provides a distributed hub motor power supply system, an integrated chassis structure and a new energy automobile, and aims to solve the problems that the maintenance cost is high, all wheels stop working in a fault state, and the wiring harness adjustment is complex.
According to a first aspect of the present invention, there is provided a distributed in-wheel motor power supply system comprising: a power module and a control module; wherein: the number of the power modules corresponds to the number of wheels, and each power module is respectively connected with the control module;
each power module respectively comprises: the energy storage unit, the hub motor and the wheel are arranged on the frame; the output end of the energy storage unit is connected with the input end of the hub motor, and the output end of the hub motor is connected with the corresponding wheel;
the control module is used for: independently controlling the opening or closing of each power module, and detecting the fault condition of the power module;
each power module is configured to: responding to control of the control module to provide power for the corresponding wheel; under the condition that part of the power modules have faults, the power modules which do not have faults independently operate to drive the wheels which correspond to the faults to run;
the energy storage unit is used for: and independently supplying power to the hub motor in each power module.
Optionally, each power module further includes a power control unit and a driving unit, an output end of the energy storage unit is connected to an input end of the power control unit, an output end of the power control unit is connected to an input end of the driving unit, an output end of the driving unit is connected to an input end of the in-wheel motor, and an output end of the in-wheel motor is connected to the corresponding wheel;
the drive unit is used for: receiving electric quantity from the energy storage unit to drive the hub motor to work;
the power control unit is used for: and controlling the energy storage unit to supply power to the driving unit.
Optionally, the power control unit controls the energy storage unit to supply power to the driving unit, and includes:
and when the driving unit is in a fault state, the power supply control unit controls the energy storage unit to stop supplying power.
Optionally, the power control unit controls the energy storage unit to supply power to the driving unit, and further includes:
when the driving unit is in a normal working state, the power supply control unit controls the energy storage unit to start supplying power.
Optionally, the distributed in-wheel motor power supply system further includes: a first control line, a second control line, and a third control line;
one end of the first control line is connected with the control module, and the other end of the first control line is respectively connected with the energy storage unit, the power supply control unit and the driving unit;
one end of the second control line is connected with the control module, and the other end of the second control line is respectively connected with the energy storage unit, the power supply control unit and the driving unit;
the number of the third control lines comprises four, and the four third control lines are respectively used for connecting the energy storage unit and the power supply control unit, the power supply control unit and the driving unit, the driving unit and the in-wheel motor, and the in-wheel motor and the wheel.
Optionally, a hub motor sensor is arranged on the hub motor;
the in-wheel motor sensor includes: a wheel speed sensor and a temperature sensor;
the temperature sensor is used for monitoring the temperature of the hub motor in real time and transmitting the monitored temperature to the driving unit; the wheel speed sensor is used for monitoring the wheel speed of the hub motor in real time and transmitting the monitored wheel speed to the driving unit;
the driving unit is used for judging whether the wheel speed of the hub motor is within a preset range or not according to the monitored wheel speed; and when the monitored temperature of the hub motor reaches a preset threshold value, the driving unit sends the current temperature information of the hub motor to the control module.
Optionally, the energy storage unit includes a backup unit, and the backup unit is configured to: when at least one battery pack of the energy storage unit breaks down, the backup unit continuously supplies power to the corresponding hub motor.
Optionally, the number of the power modules is four, and the four power modules correspond to four wheels respectively.
According to a second aspect of the present invention, there is provided an integrated chassis structure comprising the distributed in-wheel motor power supply system described above.
According to a third aspect of the invention, a new energy automobile is provided, which comprises the integrated chassis structure.
Therefore, according to the distributed hub motor power supply system, the integrated chassis structure and the new energy automobile provided by the invention, the corresponding number of power modules are arranged according to the number of automobile wheels, each power module independently controls the motion state of one wheel, namely, one energy storage unit independently supplies power to one hub motor, and further, under the condition that part of the power modules are in failure, the power modules which are not in failure can drive the wheels which are in failure correspondingly to run, so that the situation that under the condition that the wheels are in failure, all the wheels stop working due to the scheme that one power module controls all the wheels is avoided; furthermore, the scheme that one power module independently controls one wheel is adopted, and only the energy storage unit in one power module needs to be maintained when a fault occurs, so that the maintenance cost is reduced; in addition, when the wheel track and/or the wheel track of the automobile are/is changed, only the wiring harness between each power module and the control module needs to be adjusted, all wiring harnesses in the system do not need to be adjusted, and the wiring harness adjusting complexity is reduced.
In a preferred embodiment, each power module is provided with a power supply control unit, and each power supply control unit only controls the power supply of one energy storage unit, so that the problem that the power supply control unit becomes an additional high-voltage device in the system because one power supply control unit controls the power supply of all the energy storage units in the existing scheme is avoided.
In addition, in other preferred modes, the invention also adopts a backup unit, so that when at least one battery pack in part of the energy storage units breaks down, the power supply can be continuously carried out on the hub motor, and the safety and the reliability of the system are improved.
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 creative efforts.
Fig. 1 is a first schematic structural diagram of a distributed hub motor power supply system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a distributed hub motor power supply system according to an embodiment of the present invention;
FIG. 3 is a third schematic structural diagram of a distributed hub motor power supply system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a distributed hub motor power supply system in an embodiment of the present invention.
Description of reference numerals:
1-a control module;
2-a power module;
201-an energy storage unit;
202-a hub motor;
2021-wheel speed sensor;
2022-temperature sensor;
203-wheels;
204-a power control unit;
205-a drive unit;
3-a first control line;
4-a second control line;
5-third control line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Referring to fig. 1, the distributed hub motor power supply system provided by the present invention includes: a power module 2 and a control module 1; wherein: the number of the power modules 2 corresponds to the number of wheels, and each power module 2 is respectively connected with the control module 1;
each of the power modules 2 includes: an energy storage unit 201, an in-wheel motor 202 and one wheel 203; the output end of the energy storage unit 201 is connected to the input end of the in-wheel motor 202, and the output end of the in-wheel motor 202 is connected to the corresponding wheel 203.
Wherein the control module 1 is configured to: the opening or closing of each power module 2 is controlled independently, and a fault condition of the power module 2 is detected.
Wherein each power module 2 is configured to: responding to the control of the control module 1 to power the corresponding wheel 203; and under the condition that partial power modules 2 have faults, the power modules 2 which do not have faults independently operate to drive the wheels which correspond to the faults to run.
The energy storage unit 201 is configured to: the hub motor 203 in each power module 2 is independently powered.
The failure may be characterized by the situation that the energy storage unit 21 in the power module 2 is exhausted, so that the wheel hub motor cannot be powered, and thus the wheel cannot obtain power.
In an example, referring to fig. 4, when the number of the wheels is 4, the number of the power modules 2 is also 4, and each power module 2 controls each wheel separately.
In another example, when the number of wheels is 8, the number of power modules 2 is also 8, and each power module 2 controls each wheel separately.
Of course, it should be appreciated that the number 4 or 8 is merely exemplary of the number of wheels and that other numbers of wheels are within the scope of the present invention.
The explanation about the failure of the power module 2 is specifically as follows:
in one example, when the number of the wheels is four, if any one of the power modules fails and the corresponding wheel cannot move autonomously, the other three power modules operate independently and drive the failed wheel to run.
In another example, when the number of the wheels is four, if any two of the power modules are failed and the corresponding wheels cannot move autonomously, the other two power modules operate independently and drive the failed wheels to run.
In a specific embodiment, if one or more power modules 2 are in fault, the vehicle control unit (i.e., the control module 1) may control to cut off a power supply (i.e., the energy storage unit 201) of a part of the power modules 2 (including all the power modules in fault), so that the corresponding hub motor 202 is in a follow-up state; the vehicle control unit (i.e. the control module 1) controls the rest of the power modules 2 to control the wheels 203 to run at a low speed.
Therefore, according to the distributed hub motor power supply system provided by the invention, by arranging the plurality of power modules 2, each power module 2 comprises the energy storage unit 201 and the hub motor 202, each energy storage unit 201 independently supplies power to each hub motor 202, and each wheel 203 is independently controlled by each power module 2, so that when part of wheels are in fault, other wheels can independently work to drive the fault wheel, and the safety and reliability of the vehicle in the running process are ensured; and in the maintenance process, only the power module 2 with faults needs to be maintained, so that the maintenance cost is reduced.
In addition, according to the change of the number of wheels or the modification of the vehicle by a user, the wheel track and the wheel base of the corresponding vehicle can be changed, so that only the wiring harness between the power module and the control module needs to be changed, and all the wiring harnesses in the system do not need to be changed.
Regarding the backup unit, the energy storage unit includes a backup unit, and the backup unit is configured to: when at least one battery pack of the energy storage unit breaks down, the backup unit continuously supplies power to the corresponding hub motor.
In a specific embodiment, the energy storage unit includes at least two battery packs, and if any battery pack in the energy storage unit fails, the remaining battery packs are backup units to continuously supply power to the in-wheel motor 202.
As can be seen from the above description, the backup unit adopted in the present invention can continue to supply power to the in-wheel motor 202 when any battery pack in the energy storage unit 201 fails, and each power module 2 is provided with a backup unit, and each backup unit works independently, thereby improving safety and reliability of the vehicle in the driving process.
As for the power modules 2, please refer to fig. 2, each power module 2 further includes a power control unit 204 and a driving unit 205, an output end of the energy storage unit 201 is connected to an input end of the power control unit 204, an output end of the power control unit 204 is connected to an input end of the driving unit 205, an output end of the driving unit 205 is connected to an input end of the in-wheel motor 202, an output end of the in-wheel motor 202 is connected to the corresponding wheel 203, and the energy storage unit 201 is configured to supply power to the in-wheel motor 203.
Wherein the driving unit 205 is configured to: receiving the electric quantity from the energy storage unit 201 to drive the in-wheel motor 203 to work;
wherein the power control unit 204 is configured to: the power supply of the energy storage unit 201 to the driving unit 205 is controlled. Specifically, when the driving unit 205 is in a failure state, the power supply control unit 204 controls the energy storage unit 201 to stop supplying power. When the driving unit 205 is in a normal operating state, the power control unit 204 controls the energy storage unit 201 to start supplying power.
For the control of the in-wheel motor 202, in an embodiment, the control module 1 sends a signal instruction to the driving unit 205, and the driving unit 205 controls the in-wheel motor 202 to move forward, backward or stop.
As a preferred embodiment, with continued reference to fig. 2, the distributed hub motor power supply system further comprises: a first control line 3, a second control line 4 and a third control line 5.
One end of the first control line 3 is connected to the control module 1, and the other end of the first control line 3 is connected to the energy storage unit 201, the power control unit 204, and the driving unit 205, respectively. Specifically, for example, one end of the first control line 3 is connected to the control end of the control module 1, and the other end of the first control line 3 is connected to the control ends of the energy storage unit 201, the power supply control unit 204, and the driving unit 205, respectively.
One end of the second control line 4 is connected to the control module 1, and the other end of the second control line 4 is connected to the energy storage unit 201, the power control unit 204, and the driving unit 205, respectively. Specifically, for example, one end of the second control line 4 is connected to the control end of the control module 1, and the other end of the second control line 4 is connected to the control ends of the energy storage unit 201, the power supply control unit 204, and the driving unit 205, respectively.
The number of the third control lines includes four, and the four third control lines are respectively used for connecting the energy storage unit 201 and the power supply control unit 204, the power supply control unit 204 and the driving unit 205, the driving unit 205 and the in-wheel motor 202, and the in-wheel motor 202 and the wheel 203.
In one example, the first control line 3 comprises a CAN communication bus, the second control line 4 comprises a hard-wired control line, and the third control line 5 comprises a power supply line.
In a specific embodiment, the power supply process of the distributed hub motor power supply system is described as follows:
firstly, a vehicle control unit (namely, a control module 1) monitors driving state information of a power module 2 through a CAN communication bus (namely, a first control line 3) to judge whether the power module 2 is in a normal state, if the power module 2 is in a normal state, the vehicle control unit (namely, the control module 1) controls to output a first enabling signal to the power module 2 to enable the power module 2 to be in a work preparation state; then the vehicle control unit (i.e. the control module 1) controls the battery pack (i.e. the energy storage unit 201) and the power control unit 204 to start, at this time, the energy storage unit 201 outputs power, so that the driving unit 205 is in a working preparation state, and then the driving unit 205 controls the hub motor 202 to start working; if the power module 2 is in a fault state, the vehicle control unit (i.e. the control module 1) controls to output a second enabling signal to the power module 2, so that the power module 2 stops working.
Referring to fig. 3, a hub motor sensor is disposed on the hub motor 202; the in-wheel motor sensor includes: a wheel speed sensor 2021 and a temperature sensor 2022;
the wheel speed sensor 2021 and the temperature sensor 2022 are respectively used for monitoring the wheel speed and the temperature of the hub motor 202 in real time; and transmits the monitored wheel speed and temperature to the driving unit 205, respectively.
The driving unit 205 is configured to determine whether the wheel speed of the hub motor 202 is within a preset range according to the monitored wheel speed; and when the monitored temperature of the in-wheel motor 202 reaches a preset threshold, the driving unit 205 sends the current temperature information of the in-wheel motor 202 to the control module 1.
In a specific embodiment, referring to fig. 2 and fig. 3, the control module 1 issues commands (including forward, backward, and stop) to the in-wheel motor driver (i.e., the driving unit 205) through the first control line 3, the in-wheel motor driver (i.e., the driving unit 205) controls the in-wheel motor 202 to rotate forward/backward/stop, and the in-wheel motor driver (i.e., the driving unit 205) monitors real-time status information (e.g., rotation speed and temperature) of the in-wheel motor 202 through sensors (i.e., the wheel speed sensor 2021 and the temperature sensor 2022) on the in-wheel motor 202 and uploads the real-time status information to the control module 1 through the second control line 4 for correction compensation control; if the energy storage unit has low electric quantity, abnormity and fatal faults in the running process of the wheel 203, the control module 1 sends instructions of limiting torque, limiting speed, zero speed or sudden stop and the like.
The invention also provides an integrated chassis structure which comprises the distributed hub motor power supply system.
It can be understood that the distributed hub motor power supply system can be mounted on an integrated chassis with any size, and the wiring harness layout of the power supply system on the integrated chassis with different sizes can be realized only by adjusting the wiring harness between the control module and the power module.
In addition, the invention also provides a new energy automobile which comprises the integrated chassis structure.
In the description herein, reference to the terms "an implementation," "an embodiment," "a specific implementation," "an example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A distributed in-wheel motor power supply system, comprising: a power module and a control module; wherein: the number of the power modules corresponds to the number of wheels, and each power module is respectively connected with the control module;
each power module respectively comprises: the energy storage unit, the hub motor and the wheel are arranged on the frame; the output end of the energy storage unit is connected with the input end of the hub motor, and the output end of the hub motor is connected with the corresponding wheel;
the control module is used for: independently controlling the opening or closing of each power module, and detecting the fault condition of the power module;
each power module is configured to: responding to control of the control module to provide power for the corresponding wheel; under the condition that part of the power modules have faults, the power modules which do not have faults independently operate to drive the wheels which correspond to the faults to run;
the energy storage unit is used for: and independently supplying power to the hub motor in each power module.
2. The distributed in-wheel motor power supply system of claim 1,
each power module further comprises a power supply control unit and a driving unit, the output end of the energy storage unit is connected with the input end of the power supply control unit, the output end of the power supply control unit is connected with the input end of the driving unit, the output end of the driving unit is connected with the input end of the hub motor, and the output end of the hub motor is connected with the corresponding wheel;
the drive unit is used for: receiving electric quantity from the energy storage unit to drive the hub motor to work;
the power control unit is used for: and controlling the energy storage unit to supply power to the driving unit.
3. The distributed in-wheel motor power supply system of claim 2, wherein the power control unit controls the power supply of the energy storage unit to the drive unit, and comprises:
and when the driving unit is in a fault state, the power supply control unit controls the energy storage unit to stop supplying power.
4. The distributed in-wheel motor power supply system of claim 3, wherein the power control unit controls the energy storage unit to supply power to the drive unit, further comprising:
when the driving unit is in a normal working state, the power supply control unit controls the energy storage unit to start supplying power.
5. The distributed in-wheel motor power supply system of claim 2, further comprising: a first control line, a second control line, and a third control line;
one end of the first control line is connected with the control module, and the other end of the first control line is respectively connected with the energy storage unit, the power supply control unit and the driving unit;
one end of the second control line is connected with the control module, and the other end of the second control line is respectively connected with the energy storage unit, the power supply control unit and the driving unit;
the number of the third control lines comprises four, and the four third control lines are respectively used for connecting the energy storage unit and the power supply control unit, the power supply control unit and the driving unit, the driving unit and the in-wheel motor, and the in-wheel motor and the wheel.
6. The distributed in-wheel motor power supply system of claim 5, wherein an in-wheel motor sensor is disposed on the in-wheel motor;
the in-wheel motor sensor includes: a wheel speed sensor and a temperature sensor;
the temperature sensor is used for monitoring the temperature of the hub motor in real time and transmitting the monitored temperature to the driving unit;
the wheel speed sensor is used for monitoring the wheel speed of the hub motor in real time and transmitting the monitored wheel speed to the driving unit;
the driving unit is used for judging whether the wheel speed of the hub motor is within a preset range or not according to the monitored wheel speed; and when the monitored temperature of the hub motor reaches a preset threshold value, the driving unit sends the current temperature information of the hub motor to the control module.
7. The distributed in-wheel motor power supply system of claim 6, wherein the energy storage unit comprises a backup unit configured to: when at least one battery pack of the energy storage unit breaks down, the backup unit continuously supplies power to the corresponding hub motor.
8. The distributed in-wheel motor power supply system of any one of claims 1 to 7, wherein the number of the power modules is four, and four power modules correspond to four wheels respectively.
9. An integrated chassis structure comprising a distributed in-wheel motor power supply system according to any one of claims 1 to 8.
10. A new energy automobile, characterized by comprising the integrated chassis structure of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210213946.0A CN114572003A (en) | 2022-02-28 | 2022-02-28 | Distributed hub motor power supply system, integrated chassis structure and new energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210213946.0A CN114572003A (en) | 2022-02-28 | 2022-02-28 | Distributed hub motor power supply system, integrated chassis structure and new energy automobile |
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| CN114572003A true CN114572003A (en) | 2022-06-03 |
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| CN202210213946.0A Pending CN114572003A (en) | 2022-02-28 | 2022-02-28 | Distributed hub motor power supply system, integrated chassis structure and new energy automobile |
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