CN108528226A - Drive system, control method and the vehicle of freight truck - Google Patents
Drive system, control method and the vehicle of freight truck Download PDFInfo
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- CN108528226A CN108528226A CN201810244757.3A CN201810244757A CN108528226A CN 108528226 A CN108528226 A CN 108528226A CN 201810244757 A CN201810244757 A CN 201810244757A CN 108528226 A CN108528226 A CN 108528226A
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- power
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- motor
- power distribution
- drive system
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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
-
- 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
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
-
- 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
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/42—Electrical machine applications with use of more than one motor
-
- 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
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
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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)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of drive system of freight truck, control method and vehicles.The control method of the drive system of freight truck, including：Detect car load and/or vehicle-state；According to the car load and/or vehicle-state, using corresponding drive form, to carry out corresponding power distribution to the multiple motor.The control method of the drive system of the freight truck of the present invention effectively promotes the power transmission efficiency of vehicle, ensures the traveling reliability of vehicle.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of drive system of freight truck, control method and vehicle.
Background technology
In the related technology, freight truck, such as heavy-duty commercial vehicle generally use diesel engine-gearbox-transmission shaft-vehicle bridge
The quantity of the drive system that structure is driven, drive axle is more, and transmission shaft total length is longer, and mechanical structure is more complicated, transmission
Efficiency is lower, and construction weight is heavier.In addition, as emission regulation is increasingly harsh, the exhaust gas processing device volume of diesel engine
Also increase therewith with weight, the arrangement on chassis is produced bigger effect.In addition, if needs are realized between taking turns or shaft space difference speed work(
Can, then the structure of drive axle is more complicated, volume needs further increase, and influences the passability of freight truck and the cloth on chassis
It sets.In addition, even if realize wheel between or shaft space difference speed function, drive mechanism is complex, and there are hysteresis qualitys, it is difficult to accurate perception
The stability of vehicle traveling.
Invention content
The present invention is directed to solve at least to a certain extent it is above-mentioned in the related technology the technical issues of one of.
For this purpose, first purpose of the present invention is to propose a kind of drive system of freight truck.The system is effectively promoted
The power transmission efficiency of vehicle ensures the traveling reliability of vehicle.
Second object of the present invention is to propose a kind of control method of the drive system of freight truck.
Third object of the present invention is to propose a kind of vehicle.
To achieve the goals above, the first aspect of the present invention discloses a kind of drive system of freight truck, including：Hair
Motivation, the generator being connected with the engine, the power distribution unit being connected with the generator, multiple motors are described more
A motor is connected with the power distribution unit, and the multiple motor drives multiple wheels correspondingly, further includes：Control
Module, the control module are used to detect car load and/or vehicle-state, and according to the car load and/or vehicle shape
State, using corresponding drive form, to carry out corresponding power distribution to the multiple motor.
The drive system of freight truck according to the ... of the embodiment of the present invention, using engine, generator and motor as driving
System, the substitution diesel engine that freight truck uses in the related technology, gearbox, transmission shaft, axle structure are driven
Drive system, to simplify mechanical structure, have the advantages that it is light-weight, occupy little space, the arrangement on chassis is required it is low, and
Using engine, generator and motor as drive system, power transmission efficiency is effectively promoted.In addition, engine is sent out with gasoline
The diesel engine of motivation substitution in the related technology, effectively reduces pollutant emission.In addition, the power that can effectively promote vehicle passes
Efficiency of movement ensures the traveling reliability of vehicle.
In some instances, further include：Energy storage device, the energy storage device respectively with the power distribution unit and described
Multiple motors are connected, to store the dump energy of power distribution unit output, and the power distribution unit accordingly
When distributing to the underpower of each motor, power back-off is carried out for each motor.
In some instances, the multiple motor includes at least two wheel hub motors being arranged in same drive shaft both sides,
To drive the vehicle wheel rotation of the same drive shaft both sides.
The embodiment of the second aspect of the present invention disclose a kind of drive system include engine, with the engine
Connected generator, power distribution unit, the multiple motors being connected with the generator, the multiple motor with the power
Distributor is connected, and the multiple motor drives multiple wheels correspondingly, the method includes：Detect car load and/
Or vehicle-state；According to the car load and/or vehicle-state, using corresponding drive form, with to the multiple motor
Carry out corresponding power distribution.
The control method of the drive system of freight truck according to the ... of the embodiment of the present invention, according to the car load and/or
The functions such as differential of differential between wheel, between centers may be implemented in vehicle-state, the adjustment of the size of the power to distributing to motor,
In this way, the mechanical structures such as main reducing gear, differential mechanism, semiaxis can be cancelled, and then can monoblock type be replaced by independent suspension and motor
Drive axle structure simplifies the structure of drive system, reduces transmission system weight, and effectively improve the passability of freight truck, separately
Outside, the power transmission efficiency that can effectively promote vehicle ensures the traveling reliability of vehicle.
In some instances, when the car load is more than predetermined load, according to the car load and/or vehicle shape
State, using corresponding drive form, to carry out corresponding power distribution to the multiple motor, including：The generator is sent out
The power-sharing of electricity is to the multiple motor.
In some instances, when the car load is less than or equal to the predetermined load, according to the car load
And/or vehicle-state, using corresponding drive form, to carry out corresponding power distribution to the multiple motor, including：By institute
The power-sharing for stating electrical power generators is the motor of part drive shaft both sides in whole drive shafts, and stops all driving to described
The motor power supply of remaining drive shaft both sides in axis.
In some instances, when the vehicle-state is that vehicle has skidded or rolls, according to the car load
And/or vehicle-state, using corresponding drive form, to carry out corresponding power distribution to the multiple motor, including：According to
Speed discrepancy or between centers speed discrepancy are that the multiple motor carries out power distribution not etc. between wheel.
In some instances, described according to speed discrepancy between wheel or between centers speed discrepancy is that the multiple motor does not carry out not etc.
Power distribution, including：The corresponding motor of wheel that rotating speed is small is continued to power according to speed discrepancy between the wheel, the vehicle big to rotating speed
It takes turns corresponding motor and reduces power supply, until speed discrepancy disappears between the wheel.
In some instances, it is that the multiple motor carries out power not etc. according to speed discrepancy between wheel or between centers speed discrepancy
Distribution, including：According to the between centers speed discrepancy, the corresponding motor of the drive shaft that do not skid is continued to power, and reduces or stop
It powers to the corresponding motor of the drive shaft having skidded.
In some instances, further include：Freight truck starts or freight truck accelerates and the demand power of multiple motors
More than the electrical power generators maximum power when, be according to the demand power of the multiple motor by the power distribution unit
The multiple motor carries out power distribution, and carries out power back-off to the multiple motor by the energy storage device.
In some instances, further include：Vehicle at the uniform velocity travels or when vehicle deceleration/braking, is filled by the power distribution
It is the multiple motor progress power distribution to set according to the demand power of the multiple motor, and the power distribution unit is defeated
The dump energy gone out is stored to the energy storage device.
The embodiment of the third fermentation of the present invention discloses a kind of vehicle, including：According to the embodiment of above-mentioned first aspect
The drive system of the freight truck.The vehicle, as drive system, replaces related skill using engine, generator and motor
The drive system that the diesel engine, gearbox, transmission shaft of freight truck use, axle structure are driven in art, to letter
Change mechanical structure, have the advantages that it is light-weight, occupy little space, the arrangement on chassis is required it is low, and using engine, generate electricity
Machine and motor effectively promote power transmission efficiency as drive system.In addition, engine replaces the relevant technologies with petrol engine
In diesel engine, effectively reduce pollutant emission.In addition, the vehicle has the advantages that power transmission efficiency is high, ensure vehicle
Traveling reliability.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned or additional aspect and advantage combination following accompanying drawings of the present invention will be to that will become bright in the description of embodiment
It shows and is readily appreciated that, wherein：
Fig. 1 is the structure diagram of the drive system of freight truck according to an embodiment of the invention；
Fig. 2 is the schematic diagram of the drive system of freight truck according to an embodiment of the invention；
Fig. 3 is the flow chart of the control method of the drive system of freight truck according to an embodiment of the invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
The drive system, control method and vehicle of freight truck according to the ... of the embodiment of the present invention are described below in conjunction with attached drawing.
Fig. 1 is the structure diagram of the drive system of freight truck according to an embodiment of the invention.As shown in Figure 1, root
According to the drive system 100 of the freight truck of one embodiment of the invention, including：Engine 110, generator 120, power distribution dress
Set 130, multiple motors 140 and control module (not shown).
Wherein, generator 120 is connected with engine 110, is generated electricity with being driven by engine 110.Power distribution unit 130
It is connected with generator 120, is allocated with the power to generate electricity to generator 120.Multiple motors 140 are and power distribution unit
130 are connected, to be run according to the power drive freight truck for accordingly distributing to each motor 140.
Control module is used to detect car load and/or vehicle-state, and according to the car load and/or vehicle shape
State, using corresponding drive form, to carry out corresponding power distribution to the multiple motor.
It should be noted that freight truck refers to the heavy duty trucks such as heavy goods vehicle, semi-dragging truck, train.Power distribution
Device 130 can distribute identical power to multiple motors, can also be as needed, and multiple motors are distributed with different power.
As shown in Fig. 2, engine 110 refers to petrol engine 110, power distribution unit 130 is power converter 130.Separately
Outside, the drive system 100 of freight truck further includes：Energy storage device, as shown in Fig. 2, energy storage device is battery 150.In conjunction with Fig. 1
Shown, energy storage device 150 is connected with power distribution unit 130 and multiple motors 140 respectively, with storage power distributor 130
The dump energy of output, and be each motor when power distribution unit 130 accordingly distributes to the underpower of each motor
140 carry out power back-off.
In one embodiment of the invention, multiple motors 140 include at least two be arranged in same drive shaft both sides
Wheel hub motor 140, to drive the vehicle wheel rotation of same drive shaft both sides.In conjunction with shown in Fig. 2, multiple motors 140 include 4 wheel hubs
It is two-by-two a pair in 140,4 wheel hub motors 140 of motor, is connected to the both sides of two drive shafts.
Specifically, petrol engine 110 drives generator 120 to generate electricity, and is distributed by power converter 130, a part
Electric energy directly drives wheel hub motor 140 and generates driving force, and remainder enters battery 150 and carries out 150 storages, when vehicle is added
When speed or larger climbing constant power demand, if power converter 130 does not distribute enough power, at this point, battery 150 can carry
For additional electric energy to wheel hub motor 140, enough driving forces are generated with thing wheel hub motor 140, are accelerated or are climbed for vehicle
Slope.
The drive system of freight truck according to the ... of the embodiment of the present invention, using engine, generator and motor as driving
System, the substitution diesel engine that freight truck uses in the related technology, gearbox, transmission shaft, axle structure are driven
Drive system, to simplify mechanical structure, have the advantages that it is light-weight, occupy little space, the arrangement on chassis is required it is low, and
Using engine, generator and motor as drive system, the energy transmission between generator and motor can be completed by circuit,
Small volume, lighter in weight, the arrangement of circuit are more flexible various, can effectively simplify mechanical structure using motor, contracting
Short mechanically operated distance, effectively promotes power transmission efficiency.In addition, engine is replaced in the related technology with petrol engine
Diesel engine effectively reduces pollutant emission.In addition, the power transmission efficiency of vehicle can be promoted effectively, ensure the row of vehicle
Sail reliability.
In addition, the drive system of the freight truck of the embodiment of the present invention, energy storage device can deposit extra electric energy
Storage, avoids the waste of energy consumption, can also carry out power back-off when the power demand of vehicle increases to motor, promote vehicle
Dynamic property.
Fig. 3 is the flow chart of the control method of the drive system of freight truck according to an embodiment of the invention.Such as Fig. 3
Shown, the control method of the drive system of freight truck according to an embodiment of the invention includes the following steps：
S301：Detect car load and/or vehicle-state.
S302：According to the car load and/or vehicle-state, using corresponding drive form, with to the multiple electricity
Machine carries out corresponding power distribution.
In one embodiment of the invention, further include the demand power for obtaining multiple motors.
In conjunction with shown in Fig. 2, motor by taking wheel hub motor as an example, then step on according to throttle by acquisition gas pedal opening amount signal etc.
Plate opening amount signal etc. calculates the rotating speed and demand power of the wheel hub motor of each drive shaft both sides.
Judge whether the demand power of multiple motors is more than the maximum power of electrical power generators.I.e.：By each drive shaft both sides
Wheel hub motor demand power and generator rated generation amount (i.e.：The maximum power of electrical power generators) it is compared.
When multiple motors demand power be more than electrical power generators maximum power, by power distribution unit and energy storage device
It is that multiple motors carry out power distribution jointly, otherwise, multiple motors is individually for by power distribution unit and carry out power distribution.
That is, if the demand power of multiple motors is less than or equal to the maximum power of electrical power generators, generate electricity
The generated energy of machine can be to meet the operation demand of vehicle, at this point, the demand power of the multiple motors of power distribution unit, to power generation
The power of machine power generation reasonably distributes to the wheel hub motor of each drive shaft both sides.If the demand power of multiple motors is more than
The maximum power of electrical power generators, then it is impossible to meet the operation demands of vehicle for the generated energy of generator, at this point, energy storage device is just
Wheel hub motor can be powered simultaneously, to meet vehicle operation demand.
As a specific example, when the demand power of the multiple motor is more than the maximum power of electrical power generators,
It is multiple motors progress power distribution jointly by power distribution unit and the energy storage device, including：Freight truck start or
Freight truck accelerate and multiple motors demand power be more than electrical power generators maximum power when, by power distribution unit according to
The demand power of multiple motors is that multiple motors carry out power distribution, and carry out power benefit to multiple motors by the energy storage device
It repays.
In addition, when the demand power of multiple motors is less than or equal to the maximum power of electrical power generators, filled by power distribution
It sets and is individually for multiple motors progress power distributions, including：Vehicle at the uniform velocity travels or when vehicle deceleration/braking, by power distribution
Device is that multiple motors carry out power distribution, and the mistake residual electricity that power distribution unit is exported according to the demand power of multiple motors
It can store to the energy storage device.
Such as：Enumerate the control of following several situations.
1, when vehicle launch, gasoline engine ignition, driving generator, which is started to work, generates electric power, and battery provides additional
Power drives wheel together.
Accelerator open degree increases when 2, accelerating, and power demand increases, when power demand is more than electrical power generators ability, battery
The additional power of wheel hub motor is provided to drive wheel to advance.
3, at the uniform velocity when driving, accelerator open degree is held essentially constant vehicle, and generator, which persistently provides certain power, to expire
Foot driving demand, additional power storage is into battery.
4, when vehicle deceleration/braking, demand of the wheel hub motor to power is reduced, and the power that generator generates carries out battery
Charging.
In one embodiment of the invention, it is that multiple motors carry out power distribution, i.e.,：A variety of driving travelings, including：It carries
The load of lorry is (i.e.：Load) be more than predetermined load when, by the power-sharing of electrical power generators be to multiple motors；Load-carrying vehicle
Load when being less than or equal to predetermined load, be part drive shaft two in whole drive shafts by the power-sharing of electrical power generators
The motor of side.
In addition, carrying out power distribution for multiple motors, further include：When freight truck has skidded or rolls, according to
Speed discrepancy or between centers speed discrepancy are that multiple motors carry out power distribution not etc. between wheel.
Such as：According to the transport condition of freight truck, the power distribution mode of following situations can be divided into, i.e.,：Reply is different
Road conditions and different loads, by the change of power distribution mode, it can be achieved that polling power controlling function, differential function with
And the switching of drive form, it particularly may be divided into following situation：
1, it is fully loaded with when driving on straight road (such as high speed), steady load, and it is equal by electric energy to control power converter
Four wheel hub motors of even dispensing ensure that freight truck at the uniform velocity travels.
2, when freight truck single wheel trackslips on road surface, and sideslip phenomenon occurs for vehicle, the wheel production of drive axle both sides
Raw speed discrepancy, at this point, according to the wheel rotation speed signals of wheel speed sensors, yaw rate signal, control power converter is again
The electric power of driving wheel is distributed, the motor of the driving wheel small to rotating speed continues to power, and the motor of the wheel big to rotating speed reduces power supply,
Until vehicle wheel rotational speed difference disappears, freight truck is made to return to normally travel state.
3, it when vehicle is travelled in crankcase ventilaton, single wheel or in which a drive axle wheel-slip, is passed according to wheel speed
The wheel rotation speed signals of sensor, control power converter redistribute the electric power of driving wheel, stop the wheel or vehicle bridge to skidding
Power supply only powers to cohesive wheel or vehicle bridge, and driving vehicle is advanced, until freight truck is got rid of poverty.
4, when vehicle, unloaded on straight road or underloading when driving, detects that engine load is small, at this point, control work(
Rate converter is adjusted drive form, only (i.e. to necessary drive axle：Adjusted according to different automobile types) wheel hub motor carry
For electric energy, and the electric energy supply of remaining drive axle is cut off, while coordinating air suspension, promoted dead axle, realize power consumption
And the reduction of rolling resistance, and realize the adjustment of drive form.
The control method of the drive system of freight truck according to the ... of the embodiment of the present invention passes through the power to distributing to motor
Size adjustment, the functions such as differential of differential between wheel, between centers may be implemented, in this way, main reducing gear, differential can be cancelled
The mechanical structures such as device, semiaxis, and then can rigid drive axle structure be replaced by independent suspension and motor, simplify the knot of drive system
Structure reduces transmission system weight, and effectively improves the passability of freight truck.In addition, the power transmission of vehicle can be promoted effectively
Efficiency ensures the traveling reliability of vehicle.
Further, embodiment of the invention discloses that a kind of vehicle, including：According in any one above-mentioned embodiment
The drive system of freight truck.Using engine, generator and motor as drive system, substitution carries the vehicle in the related technology
The drive system that the diesel engine of lorry use, gearbox, transmission shaft, axle structure are driven, to simplify machinery
Structure, have the advantages that it is light-weight, occupy little space, the arrangement on chassis is required it is low, and using engine, generator and electricity
Machine effectively promotes power transmission efficiency as drive system.In addition, engine replaces bavin in the related technology with petrol engine
Oil turbine effectively reduces pollutant emission.In addition, the vehicle has the advantages that power transmission efficiency is high, ensure the row of vehicle
Sail reliability.
In addition, other compositions of vehicle according to the ... of the embodiment of the present invention and effect are for those of ordinary skill in the art
For be all known, be not repeated herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It is that must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiments or example.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
In conjunction with and combination.
In the description of the present invention, it should be noted that unless otherwise specified and limited, term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, can also be the connection inside two elements, it can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of control method of the drive system of freight truck, which is characterized in that the drive system includes engine and institute
Power distribution unit, the multiple motors stated the connected generator of engine, be connected with the generator, the multiple motor with
The power distribution unit is connected, and the multiple motor drives multiple wheels correspondingly, the method includes：
Detect car load and/or vehicle-state；
It is corresponding to be carried out to the multiple motor using corresponding drive form according to the car load and/or vehicle-state
Power distribution.
2. the control method of the drive system of freight truck according to claim 1, which is characterized in that
When the car load is more than predetermined load, according to the car load and/or vehicle-state, using corresponding driving
Form, to carry out corresponding power distribution to the multiple motor, including：
It is to the multiple motor by the power-sharing of the electrical power generators.
3. the control method of the drive system of freight truck according to claim 1, which is characterized in that
When the car load is less than or equal to the predetermined load, according to the car load and/or vehicle-state, use
Corresponding drive form, to carry out corresponding power distribution to the multiple motor, including：
The power-sharing of the electrical power generators is the motor of part drive shaft both sides in whole drive shafts, and is stopped to described
The motor power supply of remaining drive shaft both sides in whole drive shafts.
4. the control method of the drive system of freight truck according to claim 1, which is characterized in that
When the vehicle-state is that vehicle has skidded or rolls, according to the car load and/or vehicle-state, use
Corresponding drive form, to carry out corresponding power distribution to the multiple motor, including：
It is that the multiple motor carries out power distribution not etc. according to speed discrepancy between wheel or between centers speed discrepancy.
5. the control method of the drive system of freight truck according to claim 4, which is characterized in that described according between wheel
Speed discrepancy or between centers speed discrepancy are that the multiple motor carries out power distribution not etc., including：
The corresponding motor of wheel that rotating speed is small is continued to power according to speed discrepancy between the wheel, to the corresponding electricity of wheel that rotating speed is big
Machine reduces power supply, until speed discrepancy disappears between the wheel.
6. the control method of the drive system of freight truck according to claim 4, which is characterized in that according to rotating speed between wheel
Difference or between centers speed discrepancy are that the multiple motor carries out power distribution not etc., including：
According to the between centers speed discrepancy, the corresponding motor of the drive shaft that do not skid is continued to power, and reduces or stop to occurring
The corresponding motor power supply of drive shaft of skidding.
7. the control method of the drive system of freight truck according to claim 1, which is characterized in that further include：
Freight truck startup or the demand power of freight truck acceleration and multiple motors are more than the maximum of the electrical power generators
When power, power point is carried out for the multiple motor according to the demand power of the multiple motor by the power distribution unit
Match, and power back-off is carried out to the multiple motor by the energy storage device.
8. the control method of the drive system of freight truck according to claim 7, which is characterized in that further include：Vehicle
At the uniform velocity traveling or when vehicle deceleration/braking according to the demand power of the multiple motor is institute by the power distribution unit
It states multiple motors and carries out power distribution, and the dump energy that the power distribution unit exports is stored to the energy storage device.
9. a kind of drive system of freight truck, which is characterized in that including：Engine, the generator being connected with the engine,
Power distribution unit, the multiple motors being connected with the generator, the multiple motor are connected with the power distribution unit,
The multiple motor drives multiple wheels correspondingly, further includes：Control module, the control module is for detecting vehicle load
Lotus and/or vehicle-state, and according to the car load and/or vehicle-state, using corresponding drive form, with to described more
A motor carries out corresponding power distribution.
10. a kind of vehicle, which is characterized in that including：The drive system of freight truck according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244757.3A CN108528226A (en) | 2018-03-23 | 2018-03-23 | Drive system, control method and the vehicle of freight truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111823884A (en) * | 2020-07-29 | 2020-10-27 | 东科克诺尔商用车制动技术有限公司 | Electric vehicle turning acceleration and motor overspeed protection method for power battery back |
| CN112440641A (en) * | 2019-08-30 | 2021-03-05 | 郑州宇通客车股份有限公司 | Liftable axle type suspension driving system assembly and multi-axle electric vehicle |
| CN115817093A (en) * | 2021-09-17 | 2023-03-21 | 宇通客车股份有限公司 | Vehicle and axle lifting control method thereof |
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