CN112092749B - Control method of modular vehicle chassis - Google Patents
Control method of modular vehicle chassis Download PDFInfo
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- CN112092749B CN112092749B CN202010775495.0A CN202010775495A CN112092749B CN 112092749 B CN112092749 B CN 112092749B CN 202010775495 A CN202010775495 A CN 202010775495A CN 112092749 B CN112092749 B CN 112092749B
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- 238000000034 method Methods 0.000 title claims description 11
- 230000001133 acceleration Effects 0.000 claims abstract description 20
- 230000017525 heat dissipation Effects 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/003—Steerable axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting 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
- B60K11/00—Arrangement in connection with cooling of propulsion units
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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
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
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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
- 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
- B60L15/2009—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 for braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
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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)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a modularized vehicle chassis, which comprises a drive-by-wire cab module (1), a front axle module (2), an auxiliary power module (3), a chassis control module (4), a power battery module (5) and a rear axle module (6); through dividing vehicle chassis into a plurality of standard modules, only need can design the vehicle chassis that accords with corresponding demand and can provide different drive forms through selecting suitable module, starting, acceleration, turn to, relevant functions such as braking that need realize the chassis all integrate in standard module, the module is inside not to contain hydraulic pressure and pneumatic means, consequently, the module does not have the connection demand of hydraulic pressure and atmospheric pressure outward, only need consider mechanical connection and the electrical connection between each module when the design, high durability and convenient use, connect simply, the cost is lower, high manufacturing efficiency, wide application scope.
Description
Technical Field
The invention relates to the technical field of vehicle chassis and driving control, in particular to a control method of a modularized vehicle chassis.
Background
With the continuous development of economy, the research and development investment on the automobile industry is continuously increased and the research and development depth is continuously enhanced, the concept of automatic driving gradually comes into the public vision, various automatic driving vehicles, such as automatic driving material transport vehicles, automatic driving container vehicles, automatic driving trucks and the like, have been produced in the prior art, but all of them are manufactured based on the traditional vehicle chassis, and the requirements of automatic driving are met by transforming and additionally installing an electric control unit on the basis of the traditional vehicle chassis, so the following defects exist:
1) the problem that the electric control module is not matched with the traditional vehicle chassis exists, the electric control module matched with the traditional vehicle chassis needs to be specially arranged for the traditional vehicle chassis, the manufacturing is inconvenient, and the detection cost is high;
2) the chassis of the traditional vehicle is inconvenient to maintain, and different types of chassis are often arranged according to different vehicle types and different vehicle enterprises, so that the difficulty of manufacturing an electric control module matched with the chassis is high, and the cost is high;
3) the required chassis model and the required vehicle driving mode cannot be selected autonomously according to actual requirements, the application range is narrow, and the usability is not high.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention provides a control method of a modular vehicle chassis.
The technical scheme of the invention is as follows: a modularized vehicle chassis comprises a drive-by-wire cab module (1), a front axle module (2), an auxiliary power module (3), a chassis control module (4), a power battery module (5) and a rear axle module (6); the drive-by-wire cab module (1) is positioned at the front side of the front axle module (2), the auxiliary power module (3) is positioned between the front axle module (2) and the rear axle module (6), the chassis control module (4) is positioned above the auxiliary power module (3), and the power battery module (5) is positioned between the auxiliary power module (3) and the rear axle module (6); the front axle module (2) is a steering axle or a steering drive axle, and the rear axle module (6) is any one of the steering axle, the drive axle or the steering drive axle;
the number of the front axle modules (2) is M, the number of the rear axle modules (6) is N, M, N are respectively set to be an integer between 1 and N, and N is a natural number greater than 1.
Further, M is set to an integer greater than 2, and N is set to an integer 1 or 2.
Furthermore, the front axle module (2) and the rear axle module (6) do not comprise a pneumatic device and a hydraulic device inside.
Furthermore, the chassis control module (4) is connected with the power battery module (5) and the auxiliary power module (3) through the communication interface, the power battery module (5) provides power for the operation inside the vehicle, and the auxiliary power module (3) provides power for the operation inside the vehicle or the external module of the vehicle.
Further, the steering axle comprises an independent suspension, an electric steering system, an electric braking system and a heat dissipation system;
the drive axle comprises an independent suspension, an electric braking system, an electric driving system and a heat dissipation system;
the steering drive axle comprises an independent suspension, an electric steering system, an electric braking system, an electric driving system and a heat dissipation system.
Furthermore, the outer wall of each module is simultaneously provided with an electrical interface and a mechanical interface, the electrical interface comprises a high-voltage electrical interface, a low-voltage electrical interface and a communication interface, and the mechanical interface comprises an internal mechanical interface connected with the vehicle body and an external mechanical interface connected with the plug-in module.
Furthermore, the chassis control module (4) is connected with the front axle module (2), the rear axle module (6) and the drive-by-wire cab module (1) through communication interfaces, a driver sends a control instruction to the chassis control module (4) through the drive-by-wire cab module (1) to control the operation of each subsystem in the front axle module (2) and the rear axle module (6), and meanwhile the real-time operation state of each subsystem is uploaded to the chassis control module (4) through the communication interfaces and finally sent to the drive-by-wire cab module (1) to be displayed to the driver in real time.
The invention also provides a control method of the modularized vehicle chassis, which comprises the following steps:
1) installing each module at a corresponding position in the vehicle body through an internal mechanical interface arranged on the outer wall of each module;
2) connecting the modules through the electrical interfaces, and detecting whether signal transmission between the modules is normal or not;
3) when starting to drive, a driver sends a drive control instruction to a chassis control module (4) through a drive-by-wire cab module (1) to control the operation of an electric drive system, and the real-time operation state of the electric drive system is uploaded to the chassis control module (4) through a communication interface and is finally sent to the drive-by-wire cab module (1) to be displayed to the driver in real time;
when the vehicle runs in an accelerated mode, a driver sends an acceleration control instruction to a chassis control module (4) through a drive-by-wire cab module (1) to control an electric drive system to operate so as to realize vehicle acceleration, and when the acceleration power provided by the electric drive system can meet the acceleration requirement of the driver, the chassis control module (4) independently adopts a power battery module (5) as a power source when the vehicle accelerates, and controls a heat dissipation system to operate at low power; when the acceleration power provided by the electric drive system cannot meet the acceleration requirement of a driver, the chassis control module (4) simultaneously adopts the power battery module (5) and the auxiliary power module (3) as power sources when the vehicle accelerates, and simultaneously controls the heat dissipation system to operate at high power;
when the electric vehicle is steered to run, a driver sends a steering control instruction to a chassis control module (4) through a drive-by-wire cab module (1) to control an electric drive system to stop and an electric steering system to run so as to realize vehicle steering, and the control sequence during steering control is as follows: firstly, the power battery module (5) is closed, then the auxiliary power module (3) is kept opened, and finally the electric steering system is synchronously opened, and meanwhile, the low-power operation of the heat dissipation system is kept;
during braking, a driver sends a braking control instruction to the chassis control module (4) through the drive-by-wire cab module (1) to control the electric drive system to stop and the electric brake system to run so as to realize braking, and the control sequence during braking control is as follows: the auxiliary power module (3) is closed, then the power battery module (5) is closed, and finally the electric braking system is started, and meanwhile, the high-power operation of the heat dissipation system is kept;
4) when a vehicle stops, a driver sends a parking control instruction to the chassis control module (4) through the wire control cab module (1) to control the electric drive system to stop so as to realize parking of the vehicle, all modules are connected with the vehicle plug-in module through external mechanical interfaces arranged on the outer wall of all modules, and then the driver sends the plug-in control instruction to the chassis control module (4) through the wire control cab module (1) to realize corresponding control of the vehicle plug-in module.
Further, when starting to drive in the step 3), a driver sends a drive control instruction to the chassis control module (4) through the drive-by-wire cab module (1) to control the operation of the electric drive system, and meanwhile, the chassis control module (4) controls the synchronous operation of the heat dissipation system.
Compared with the prior art, the invention has the following beneficial effects:
1) through dividing vehicle chassis into a plurality of standard modules, only need can design the vehicle chassis that accords with corresponding demand and can provide different drive forms through selecting suitable module, starting, acceleration, turn to, relevant functions such as braking that need realize the chassis all integrate in standard module, the module is inside not to contain hydraulic pressure and pneumatic means, consequently, the module does not have the connection demand of hydraulic pressure and atmospheric pressure outward, only need consider mechanical connection and the electrical connection between each module when the design, high durability and convenient use, connect simply, the cost is lower, high manufacturing efficiency, wide application scope.
2) The non-independent suspension or non-suspension structure adopted in the prior art is replaced by an independent suspension structure, so that the vehicle runs stably, can adapt to the running of a common road, and has a wide application range; the pneumatic or hydraulic device used in the traditional vehicle industry in the prior art is replaced by the electric device, the electro-hydraulic steering system in the prior art is replaced by the electric steering system, a pneumatic pressure source and a hydraulic pressure source can be omitted, an electric system is adopted to replace a gas-liquid system, the efficiency is higher, and the maintenance cost is lower.
3) The scheme that the structural layout is dispersed existing in the traditional vehicle transformation in the prior art is replaced by a highly integrated modular structure, different module combinations can be selected to meet different use requirements, and convenience is brought to vehicle development. The complex three control modes of the electro-hydraulic system and the pneumatic system in the prior art are replaced by the independent electric control mode, the control type is single, the manufacturing is convenient, and the control is accurate.
Drawings
FIG. 1 is an exploded view of a first perspective construction of a modular vehicle chassis of the present invention;
FIG. 2 is an exploded view of the modular vehicle chassis of the present invention from a second perspective;
FIG. 3 is a first perspective structural schematic view of a modular vehicle chassis of the present invention;
FIG. 4 is a second perspective structural schematic view of the modular vehicle chassis of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and will therefore make the scope of the invention more clearly and clearly defined.
A modular vehicle chassis is provided in accordance with the present invention as shown in fig. 1-4.
The specific technical scheme is as follows: a modularized vehicle chassis comprises a drive-by-wire cab module 1, a front axle module 2, an auxiliary power module 3, a chassis control module 4, a power battery module 5 and a rear axle module 6; the drive-by-wire cab module 1 is positioned at the front side of the front axle module 2, the auxiliary power module 3 is positioned between the front axle module 2 and the rear axle module 6, the chassis control module 4 is positioned above the auxiliary power module 3, and the power battery module 5 is positioned between the auxiliary power module 3 and the rear axle module 6;
the front axle module 2 is a steering axle or a steering drive axle, and the rear axle module 6 is any one of the steering axle, the drive axle or the steering drive axle;
the number of the front axle modules 2 is M, the number of the rear axle modules 6 is N, M, N are respectively set to be an integer between 1 and N, and N is a natural number larger than 1.
M sets up to be greater than 2 the integer, N sets up to integer 1 or 2 to the user demand that needs to be provided with a plurality of bridge structures in the space structure of large-scale load-carrying vehicle multi-wheel base.
Specifically, the front axle module 2 and the rear axle module 6 do not comprise an air pressure device and a hydraulic device inside, three control modes of electric liquid and gas in the prior art are replaced by electric control, the control type is single, the manufacture is convenient, and the control is accurate.
Specifically, the chassis control module 4 is connected with the power battery module 5 and the auxiliary power module 3 through a communication interface, the power battery module 5 provides power for the operation inside the vehicle, and the auxiliary power module 3 provides power for the operation inside the vehicle or the external module of the vehicle.
Specifically, the steering axle comprises an independent suspension, an electric steering system, an electric braking system and a heat dissipation system;
the drive axle comprises an independent suspension, an electric braking system, an electric driving system and a heat dissipation system;
the steering drive axle comprises an independent suspension, an electric steering system, an electric braking system, an electric driving system and a heat dissipation system; therefore, the use requirements of vehicles with different driving modes are met by replacing the internal corresponding system.
Specifically, the outer wall of each module is simultaneously provided with an electrical interface and a mechanical interface, the electrical interface comprises a high-voltage electrical interface, a low-voltage electrical interface and a communication interface, the mechanical interface comprises an internal mechanical interface for connecting a vehicle body and an external mechanical interface for connecting an external module, the mechanical structure between the modules is connected through the mechanical interface, the signal connection between the modules is realized through the electrical interface, three control modes of electro-hydraulic and pneumatic in the prior art are replaced by electric control, the control type is single, the manufacture is convenient, and the control is accurate.
Specifically, the chassis control module 4 is connected with the front axle module 2, the rear axle module 6 and the wire-controlled cab module 1 through communication interfaces, a driver sends a control instruction to the chassis control module 4 through the wire-controlled cab module 1 to control the operation of each subsystem inside the front axle module 2 and the rear axle module 6, and simultaneously, the real-time operation state of each subsystem is uploaded to the chassis control module 4 through the communication interfaces and finally sent to the wire-controlled cab module 1 to be displayed to the driver in real time, so that the corresponding operation parameters of the vehicle can be effectively observed when the driver correspondingly controls the vehicle through the wire-controlled cab module 1, and the driver can timely generate corresponding operation and emergency response.
Specifically, the invention also provides a control method of the chassis of the modular vehicle, which comprises the following steps:
1) installing each module at a corresponding position in the vehicle body through an internal mechanical interface arranged on the outer wall of each module;
2) connecting the modules through the electrical interfaces, and detecting whether signal transmission between the modules is normal or not;
3) when starting to drive, a driver sends a drive control instruction to the chassis control module 4 through the drive-by-wire cab module 1 to control the operation of the electric drive system, and the real-time operation state of the electric drive system is uploaded to the chassis control module 4 through the communication interface and is finally sent to the drive-by-wire cab module 1 to be displayed to the driver in real time;
when the vehicle runs in an accelerated mode, a driver sends an acceleration control instruction to the chassis control module 4 through the drive-by-wire cab module 1 to control the electric drive system to operate so as to realize vehicle acceleration, and when the acceleration power provided by the electric drive system can meet the acceleration requirement of the driver, the chassis control module 4 independently adopts the power battery module 5 as a power source when the vehicle accelerates, and simultaneously controls the heat dissipation system to operate at low power; at this time, only the power battery module 5 is used as a power source when the vehicle accelerates, so that the generated heat is relatively less; when the acceleration power provided by the electric drive system cannot meet the acceleration requirement of a driver, the chassis control module 4 simultaneously adopts the power battery module 5 and the auxiliary power module 3 as power sources when the vehicle accelerates, and simultaneously controls the heat dissipation system to operate at high power; so as to meet the high-heat radiating effect in the case of double power sources;
when the vehicle is steered to run, a driver sends a steering control instruction to the chassis control module 4 through the drive-by-wire cab module 1 to control the electric drive system to stop and the electric steering system to run so as to realize the steering of the vehicle, and the control sequence during the steering control is as follows: firstly, the power battery module 5 is closed, then the auxiliary power module 3 is kept opened, and finally the electric steering system is synchronously opened, and meanwhile, the low-power operation of the heat dissipation system is kept; therefore, the vehicle can still have enough power to drive when running at low speed in the steering process;
during braking, a driver sends a braking control instruction to the chassis control module 4 through the drive-by-wire cab module 1 to control the electric drive system to stop and the electric brake system to run so as to realize braking, and the control sequence during braking control is as follows: firstly, the auxiliary power module 3 is closed, then the power battery module 5 is closed, and finally the electric braking system is started, and meanwhile, the high-power operation of the heat dissipation system is kept; the auxiliary power module 3 and the power battery module 5 are closed firstly, and then the electric braking system is started, so that energy can be effectively saved, and the high-power operation of the heat dissipation system is kept to further ensure the effective heat dissipation effect on the braking heat;
4) when a vehicle stops, a driver sends a parking control instruction to the chassis control module 4 through the wire control cab module 1 to control the electric drive system to stop so as to realize vehicle parking, each module is connected with the vehicle plug-in module through an external mechanical interface arranged on the outer wall of each module, and then the driver sends the plug-in control instruction to the chassis control module 4 through the wire control cab module 1 so as to realize corresponding control on the vehicle plug-in module. Preferably, the plug-in module determines the priority of the installation positions in the modules according to a priority principle, the priority principle is set in a priority unit, and the priority unit is integrated in the chassis control module 4 and can be preset in the online control cab module 1 by a driver and adjusted later as required;
as further optimization, factors influencing the priority principle include plug-in matching factors, power distribution factors, use frequency factors, structural space factors and the like, and a driver can select one of the plug-in matching factors from the online control cab module 1 to preset and adjust the plug-in matching factor according to needs at the later stage so as to determine the priority principle; for example,
the priority of the installation positions of the plug-in modules in the modules can be determined according to the principle that the plug-in matching factors of the plug-in modules and the modules are taken as priorities, for example, the priority of the plug-in module special for battery heat dissipation, which is installed on the power battery module 5, is superior to the priority of the plug-in module installed on other modules;
the priority of the installation positions of the plug-in modules in the modules can be determined according to the principle that the power distribution factors of the modules are priority, for example, the priority of the plug-in module for lifting cargos, which is installed on the wire-controlled cab module 1, is superior to the priority of the plug-in module for lifting cargos, which is installed on other modules, so that the potential influence on the power distribution of the vehicle in the normal running process, which is possibly caused by the long-time installation of the plug-in module on other modules related to the power, is avoided;
the priority of the installation positions of the plug-in modules in the modules can be determined according to the principle that the use frequency factors of the plug-in modules and the modules are priority, for example, the priority of the walkway plug-in module for the entering and exiting of a driver, which is installed on the wire-controlled cab module 1, is higher than the priority of the walkway plug-in module which is installed on other modules, so that the driver can enter and exit the wire-controlled cab module 1 frequently;
the priority of the installation positions of the plug-in modules in the modules can be determined according to the principle that structural space factors between the plug-in modules and the modules are used as priority, so that the interior structure of the vehicle is simplified, and the occupied space is small;
the driver can also select each influencing factor in the drive-by-wire cab module 1 as required and perform comprehensive calculation for the influencing factor according to an empirical formula, so as to determine the priority principle.
Specifically, when the vehicle starts to run in step 3, the driver sends a drive control instruction to the chassis control module 4 through the drive-by-wire cab module 1 to control the operation of the electric drive system, and the chassis control module 4 controls the cooling system to start to operate synchronously, so that the cooling system and the electric drive system operate synchronously, and timely cooling is guaranteed while the vehicle is driven to operate.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (2)
1. A method of controlling a modular vehicle chassis, characterized by: the method comprises the following steps:
1) installing each module at a corresponding position in the vehicle body through an internal mechanical interface arranged on the outer wall of each module;
2) connecting the modules through the electrical interfaces, and detecting whether signal transmission between the modules is normal or not;
3) when starting to drive, a driver sends a drive control instruction to a chassis control module (4) through a drive-by-wire cab module (1) to control the operation of an electric drive system, and the real-time operation state of the electric drive system is uploaded to the chassis control module (4) through a communication interface and is finally sent to the drive-by-wire cab module (1) to be displayed to the driver in real time;
when the vehicle runs in an accelerated mode, a driver sends an acceleration control instruction to a chassis control module (4) through a drive-by-wire cab module (1) to control an electric drive system to operate so as to realize vehicle acceleration, and when the acceleration power provided by the electric drive system can meet the acceleration requirement of the driver, the chassis control module (4) independently adopts a power battery module (5) as a power source when the vehicle accelerates, and controls a heat dissipation system to operate at low power; when the acceleration power provided by the electric drive system cannot meet the acceleration requirement of a driver, the chassis control module (4) simultaneously adopts the power battery module (5) and the auxiliary power module (3) as power sources when the vehicle accelerates, and simultaneously controls the heat dissipation system to operate at high power;
when the electric vehicle is steered to run, a driver sends a steering control instruction to a chassis control module (4) through a drive-by-wire cab module (1) to control an electric drive system to stop and an electric steering system to run so as to realize vehicle steering, and the control sequence during steering control is as follows: firstly, the power battery module (5) is closed, then the auxiliary power module (3) is kept opened, and finally the electric steering system is synchronously opened, and meanwhile, the low-power operation of the heat dissipation system is kept;
during braking, a driver sends a braking control instruction to the chassis control module (4) through the drive-by-wire cab module (1) to control the electric drive system to stop and the electric brake system to run so as to realize braking, and the control sequence during braking control is as follows: the auxiliary power module (3) is closed, then the power battery module (5) is closed, and finally the electric braking system is started, and meanwhile, the high-power operation of the heat dissipation system is kept;
4) when a vehicle stops, a driver sends a parking control instruction to the chassis control module (4) through the wire control cab module (1) to control the electric drive system to stop so as to realize parking of the vehicle, all modules are connected with the vehicle plug-in module through external mechanical interfaces arranged on the outer wall of all modules, and then the driver sends the plug-in control instruction to the chassis control module (4) through the wire control cab module (1) to realize corresponding control of the vehicle plug-in module.
2. A method of controlling a modular vehicle chassis according to claim 1, wherein: when starting to run in the step 3), a driver sends a drive control instruction to the chassis control module (4) through the drive-by-wire cab module (1) to control the operation of the electric drive system, and meanwhile, the chassis control module (4) controls the synchronous operation of the heat dissipation system.
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