CN107117068A - A kind of environmental sanitation electric car electric transmission matching primitives method - Google Patents
A kind of environmental sanitation electric car electric transmission matching primitives method Download PDFInfo
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- CN107117068A CN107117068A CN201710258836.5A CN201710258836A CN107117068A CN 107117068 A CN107117068 A CN 107117068A CN 201710258836 A CN201710258836 A CN 201710258836A CN 107117068 A CN107117068 A CN 107117068A
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
-
- 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
- B60L2240/423—Torque
-
- 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)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of environmental sanitation electric car electric transmission matching primitives method, environmental sanitation electric car electric drive system includes energy-storage system, main convertor, traction electric machine, main reducing gear and differential mechanism, in traction working condition, the energy of energy-storage system storage will drive traction electric machine by main convertor after DC inverter, again by the transmission of main reducing gear and differential mechanism, driving vehicle operation；In electric braking operating mode, traction electric machine is operated in Generator Status, and kinetic energy is converted into electric energy and is recycled to energy-storage system by main convertor；Matching primitives are carried out with the electric drive system of 16 tons of electric sanitation trucks, it includes, and traction electric machine parameter is calculated and main convertor parameter is calculated.The computational methods of the present invention are simple, and result of calculation is reliable, and the matching degree of traction electric machine and main convertor is good, disclosure satisfy that the daily traveling of electric sanitation truck and operation, meets the related request of electric car.
Description
Technical field
The present invention relates to electric sanitation truck, especially a kind of environmental sanitation electric car electric transmission matching primitives method.
Background technology
Sanitation cart is the special-purpose vehicle for arranging, cleaning for the city appearance of the city, is broadly divided into sprinkling truck series and garbage truck system
It is classified as master.At present, the most Diesel engines of in the market are controlled, tail when vehicle is on the way travelled caused by diesel combustion
Gas is discharged, and the long-term pollution in the past to environment is larger, is unfavorable for low-carbon environment-friendly.So, electric sanitation truck just arises at the historic moment, electronic
The matching of traction electric machine and main convertor in the main electric drive system for considering electric sanitation truck of exploitation of car, suitable traction
The selection of motor and main convertor helps to save electric energy, and sanitation cart is met daily traveling and job requirements.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of environmental sanitation electric car electric transmission matching primitives method, algorithm letter
Single, result of calculation is reliable.
In order to solve the above technical problems, the technical scheme is that：A kind of environmental sanitation electric car electric transmission matching primitives side
Method, environmental sanitation electric car electric drive system includes energy-storage system, main convertor, traction electric machine, main reducing gear and differential mechanism, in traction
During operating mode, the energy of energy-storage system storage will drive traction electric machine by main convertor after DC inverter, then be slowed down by main
The transmission of device and differential mechanism, driving vehicle operation；In electric braking operating mode, traction electric machine is operated in Generator Status, and kinetic energy turns
Turn to electric energy and energy-storage system is recycled to by main convertor；In terms of the electric drive system progress matching of 16 tons of electric sanitation trucks
Calculate, it includes, and traction electric machine parameter is calculated and main convertor parameter is calculated：Traction electric machine parameter：
1st, traction electric machine property calculation
(1) starting torque is calculated
Sanitation cart starts tractive force and cannot be less than 33.64kN, calculates starting torque：
Wherein, r is tire rolling radius, and value is 0.502m；ηTFor gear-driven efficiency, 0.98 × 0.98=of value
0.96；I is gear ratio, and value is 6.166；
(2) rated power is calculated
Sanitation cart it is fully loaded using 90km/h run on straight road when resistance as 4.22kN, then need power：
(3) maximum (top) speed is calculated
Calculated by desin speed 90km/h, traction electric machine tachometer value is：
Wherein, i is gearratio, and D is tire rolling diameter；
2nd, electric braking property calculation
(1) traction electric machine electrical braking power
Using 30km/h, sliding force is 6.43kN to electric sanitation truck on 6% ramp, when vehicle speed per hour is 30km/h, electricity system
Dynamic to overcome the sliding force in 6% gug, then braking power is not less than：
(2) traction electric machine electric braking torque
According to vehicle performance demand and motor Economic moving region, setting electric braking curve brakes area to permanent torque by invariable power
The turnover rotating speed for braking area is rated speed 1000r/min, and the braking power in motor invariable power area is 60kW, then motor electric braking
The torque of permanent torque Operational Zone is 573Nm；
Main convertor parameter：
1st, rated capacity
Calculating main convertor rated capacity according to traction electric machine parameter is：
PeFor traction electric machine rated power, ηmeFor traction electric machine rated efficiency,For traction electric machine rated power factor,
2nd, output-current rating
Wherein, UeFor traction electric machine rated voltage；
3rd, rated input power
Traction convertor efficiency takes 0.98, then current transformer rated input power is：
4th, maximum capacity during electric braking
Wherein, PbFor the maximum electrical braking power of traction motor, ηmbFor electric efficiency under maximum electrical braking power,For most
Motor power factor under big electrical braking power；
As an improvement, measure its course continuation mileage more than or equal to 80km using 40km/h constant speed methods, test mass is reorganizes and outfit
Quality and additional mass sum, if maximum autohorized pay mass is more than 360kg, additional mass is maximum autohorized pay mass
Half, root are it is estimated that test mass takes 13t；It is assumed that at the uniform velocity being travelled with 40km/h, it is necessary to which motor provides work(on straight road
Rate：
Course continuation mileage is 80km/h, and energy-storage system provides at trailer system energy：
As an improvement, the parameter obtained according to calculating selects traction electric machine, to give full play to traction, the electric braking of motor
Can, the traction of above vehicle, electric braking performance parameter are calculated and be modified：The stage is drawn for motor permanent torque, power is set
It is turning point when reaching rated power 120kW, calculates motor speed now：
When rotating speed reaches 382r/min, the torque of motor enters the linear decline stage, this stage end point correspondence motor
Rotating speed is rated speed 1000r/min, is invariable power traction stage, traction when motor speed is 1000r/min~3000r/min
Power is rated power 120kW, can be obtained：
Vehicle pulling figure：
0~11.7km/h, in the permanent tractive force stage, tractive force is 35.4kN；
11.7~30.7km/h, tractive force linear decline stage；
30.7~90km/h, invariable power stage, wheel power is 115kW.
Vehicle electric braking characteristic：
90~30.7km/h, invariable power deboost phase, whole vehicle wheel side braking power 57.6kW；
30.7~5km/h, permanent electric braking force stage, electric braking force 6.76kN；
5km/h~0, electric braking force linear decline stage.
The beneficial effect brought compared with prior art of the present invention is：
The computational methods of the present invention are simple, and result of calculation is reliable, and the matching degree of traction electric machine and main convertor is good, Neng Gouman
The sufficient daily traveling of electric sanitation truck and operation, meet the related request of electric car.
Brief description of the drawings
Fig. 1 is electric sanitation truck electric drive system block diagram.
Fig. 2 is curve of traction characteristics.
Fig. 3 is electric braking characteristic curve.
Embodiment
A kind of environmental sanitation electric car electric transmission matching primitives method, as shown in figure 1, environmental sanitation electric car electric drive system includes storage
Energy system, main convertor, traction electric machine, main reducing gear and differential mechanism, in traction working condition, the energy of energy-storage system storage passes through
Main convertor will drive traction electric machine after DC inverter, then pass through the transmission of main reducing gear and differential mechanism, driving vehicle operation；
In electric braking operating mode, traction electric machine is operated in Generator Status, and kinetic energy is converted into electric energy and is recycled to storage by main convertor
Can system.Matching primitives are carried out with the electric drive system of 16 tons of electric sanitation trucks, it includes traction electric machine parameter and calculated and main transformer
Device parameter is flowed to calculate：
First, traction electric machine parameter：
1st, traction electric machine property calculation
(1) starting torque is calculated
Sanitation cart starts tractive force and cannot be less than 33.64kN, calculates starting torque：
Wherein, r is tire rolling radius, and value is 0.502m；ηTFor gear-driven efficiency, 0.98 × 0.98=of value
0.96；I is gear ratio, and value is 6.166；
(2) rated power is calculated
Sanitation cart it is fully loaded using 90km/h run on straight road when resistance as 4.22kN, then need power：
(3) maximum (top) speed is calculated
Calculated by desin speed 90km/h, traction electric machine tachometer value is：
Wherein, i is gearratio, and D is tire rolling diameter；
2nd, electric braking property calculation
(1) traction electric machine electrical braking power
Using 30km/h, sliding force is 6.43kN to electric sanitation truck on 6% ramp, when vehicle speed per hour is 30km/h, electricity system
Dynamic to overcome the sliding force in 6% gug, then braking power is not less than：
(2) traction electric machine electric braking torque
According to vehicle performance demand and motor Economic moving region, setting electric braking curve brakes area to permanent torque by invariable power
The turnover rotating speed for braking area is rated speed 1000r/min, and the braking power in motor invariable power area is 60kW, then motor electric braking
The torque of permanent torque Operational Zone is 573Nm.
2nd, main convertor parameter：
1st, rated capacity
Calculating main convertor rated capacity according to traction electric machine parameter is：
PeFor traction electric machine rated power, ηmeFor traction electric machine rated efficiency,For traction electric machine rated power factor,
2nd, output-current rating
Wherein, UeFor traction electric machine rated voltage；
3rd, rated input power
Traction convertor efficiency takes 0.98, then current transformer rated input power is：
4th, maximum capacity during electric braking
Wherein, PbFor the maximum electrical braking power of traction motor, ηmbFor electric efficiency under maximum electrical braking power,For most
Motor power factor under big electrical braking power；
3rd, electric transmission part energy consumption calculation
Its course continuation mileage is measured more than or equal to 80km using 40km/h constant speed methods, test mass is kerb weight with adding
Quality sum, if maximum autohorized pay mass is more than 360kg, additional mass is the half of maximum autohorized pay mass, according to
Estimation, test mass takes 13t；It is assumed that at the uniform velocity being travelled, it is necessary to electrical machine with power with 40km/h on straight road：
Course continuation mileage is 80km/h, and energy-storage system provides at trailer system energy：
The parameter selection of traction electric machine：
The parameter obtained according to calculating selects traction electric machine, to give full play to traction, the electric braking performance of motor, to the above
Vehicle traction, electric braking performance parameter are calculated and are modified：Drawn the stage for motor permanent torque, setting power reaches specified work(
It is turning point during rate 120kW, calculates motor speed now：
When rotating speed reaches 382r/min, the torque of motor enters the linear decline stage, this stage end point correspondence motor
Rotating speed is rated speed 1000r/min, is invariable power traction stage, traction when motor speed is 1000r/min~3000r/min
Power is rated power 120kW, can be obtained：
As shown in Fig. 2 vehicle pulling figure：
0~11.7km/h, in the permanent tractive force stage, tractive force is 35.4kN；
11.7~30.7km/h, tractive force linear decline stage；
30.7~90km/h, invariable power stage, wheel power is 115kW.
As shown in figure 3, vehicle electric braking characteristic：
90~30.7km/h, invariable power deboost phase, whole vehicle wheel side braking power 57.6kW；
30.7~5km/h, permanent electric braking force stage, electric braking force 6.76kN；
5km/h~0, electric braking force linear decline stage.
Mainly set in main convertor including control board, drive circuit board, IGBT inverters, thin-film capacitor and structure
Binding post, bosh in terms of meter etc..Main convertor not only has the effect of rectification and inversion, also with drive control electricity
The function of machine.Main convertor is communicated by CAN with entire car controller, and the instruction sent according to entire car controller
Mode of operation and output current are determined, traction electric machine torque is controlled by output current.Using vector controlled and space vector arteries and veins
Wide modulation technique, maximal efficiency is up to 98%.
The parameter selection of main convertor：
Claims (3)
1. a kind of environmental sanitation electric car electric transmission matching primitives method, it is characterised in that：Environmental sanitation electric car electric drive system includes storage
Energy system, main convertor, traction electric machine, main reducing gear and differential mechanism, in traction working condition, the energy of energy-storage system storage passes through
Main convertor will drive traction electric machine after DC inverter, then pass through the transmission of main reducing gear and differential mechanism, driving vehicle operation；
In electric braking operating mode, traction electric machine is operated in Generator Status, and kinetic energy is converted into electric energy and is recycled to storage by main convertor
Can system；Matching primitives are carried out with the electric drive system of 16 tons of electric sanitation trucks, it includes traction electric machine parameter and calculated and main transformer
Device parameter is flowed to calculate：
Traction electric machine parameter：
1st, traction electric machine property calculation
(1) starting torque is calculated
Sanitation cart starts tractive force and cannot be less than 33.64kN, calculates starting torque：
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Wherein, r is tire rolling radius, and value is 0.502m；ηTFor gear-driven efficiency, 0.98 × 0.98=0.96 of value；i
For gear ratio, value is 6.166；
(2) rated power is calculated
Sanitation cart it is fully loaded using 90km/h run on straight road when resistance as 4.22kN, then need power：
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(3) maximum (top) speed is calculated
Calculated by desin speed 90km/h, traction electric machine tachometer value is：
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Wherein, i is gearratio, and D is tire rolling diameter；
2nd, electric braking property calculation
(1) traction electric machine electrical braking power
Using 30km/h, sliding force is 6.43kN to electric sanitation truck on 6% ramp, and when vehicle speed per hour is 30km/h, electric braking is needed
Overcome the sliding force in 6% gug, then braking power is not less than：
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(2) traction electric machine electric braking torque
According to vehicle performance demand and motor Economic moving region, setting electric braking curve brakes area to constant torque braking by invariable power
The turnover rotating speed in area is rated speed 1000r/min, and the braking power in motor invariable power area is 60kW, then motor electric braking perseverance turns
The torque of square Operational Zone is 573Nm；
Main convertor parameter：
1st, rated capacity
Calculating main convertor rated capacity according to traction electric machine parameter is：
PeFor traction electric machine rated power, ηmeFor traction electric machine rated efficiency,For traction electric machine rated power factor,
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2nd, output-current rating
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Wherein, UeFor traction electric machine rated voltage；
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3rd, rated input power
Traction convertor efficiency takes 0.98, then current transformer rated input power is：
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4th, maximum capacity during electric braking
Wherein, PbFor the maximum electrical braking power of traction motor, ηmbFor electric efficiency under maximum electrical braking power,For maximum electricity
Motor power factor under braking power；
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2. a kind of environmental sanitation electric car electric transmission matching primitives method according to claim 1, it is characterised in that：Using
40km/h constant speed methods measure its course continuation mileage more than or equal to 80km, and test mass is kerb weight and additional mass sum, such as
Fruit maximum autohorized pay mass is more than 360kg, and additional mass is the half of maximum autohorized pay mass, root it is estimated that experiment matter
Measure 13t；It is assumed that at the uniform velocity being travelled, it is necessary to electrical machine with power with 40km/h on straight road：
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<mn>9.81</mn>
<mo>&times;</mo>
<mn>0.018</mn>
<mo>+</mo>
<mfrac>
<mrow>
<mn>0.7</mn>
<mo>&times;</mo>
<mn>5.189</mn>
<mo>&times;</mo>
<msup>
<mn>40</mn>
<mn>2</mn>
</msup>
</mrow>
<mn>21.15</mn>
</mfrac>
<mo>)</mo>
</mrow>
<mo>&times;</mo>
<mfrac>
<mn>40</mn>
<mrow>
<mn>3600</mn>
<mo>&times;</mo>
<mn>0.96</mn>
</mrow>
</mfrac>
<mo>=</mo>
<mn>30</mn>
<mi>k</mi>
<mi>w</mi>
</mrow>
Course continuation mileage is 80km/h, and energy-storage system provides at trailer system energy：
<mrow>
<mi>E</mi>
<mo>=</mo>
<mfrac>
<msub>
<mi>P</mi>
<mi>t</mi>
</msub>
<mi>&eta;</mi>
</mfrac>
<mo>=</mo>
<mfrac>
<mrow>
<mn>30</mn>
<mo>&times;</mo>
<mn>80</mn>
</mrow>
<mrow>
<mn>40</mn>
<mo>&times;</mo>
<mn>0.96</mn>
<mo>&times;</mo>
<mn>0.98</mn>
</mrow>
</mfrac>
<mo>=</mo>
<mn>64</mn>
<mi>k</mi>
<mi>w</mi>
<mo>.</mo>
</mrow>
3. a kind of environmental sanitation electric car electric transmission matching primitives method according to claim 1, it is characterised in that：According to calculating
Obtained parameter selection traction electric machine, to give full play to traction, the electric braking performance of motor, to the traction of above vehicle, electric braking
Performance parameter is calculated and is modified：The stage is drawn for motor permanent torque, set when power reaches rated power 120kW to transfer
Point, calculates motor speed now：
<mrow>
<msub>
<mi>n</mi>
<mn>1</mn>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mn>9550</mn>
<mo>&times;</mo>
<msub>
<mi>P</mi>
<mi>e</mi>
</msub>
</mrow>
<msub>
<mi>T</mi>
<mi>max</mi>
</msub>
</mfrac>
<mo>=</mo>
<mfrac>
<mrow>
<mn>9550</mn>
<mo>&times;</mo>
<mn>120</mn>
</mrow>
<mn>3000</mn>
</mfrac>
<mo>=</mo>
<mfrac>
<mrow>
<mn>382</mn>
<mi>r</mi>
</mrow>
<mrow>
<mi>m</mi>
<mi>i</mi>
<mi>n</mi>
</mrow>
</mfrac>
</mrow>
When rotating speed reaches 382r/min, the torque of motor enters linear decline stage, the rotating speed of this stage end point correspondence motor
It is invariable power traction stage, traction power when motor speed is 1000r/min~3000r/min for rated speed 1000r/min
For rated power 120kW, it can obtain：
Vehicle pulling figure：
0~11.7km/h, in the permanent tractive force stage, tractive force is 35.4kN；
11.7~30.7km/h, tractive force linear decline stage；
30.7~90km/h, invariable power stage, wheel power is 115kW.
Vehicle electric braking characteristic：
90~30.7km/h, invariable power deboost phase, whole vehicle wheel side braking power 57.6kW；
30.7~5km/h, permanent electric braking force stage, electric braking force 6.76kN；
5km/h~0, electric braking force linear decline stage.
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| CN111397914A (en) * | 2020-03-30 | 2020-07-10 | 江西江铃集团新能源汽车有限公司 | Matching method for power system of electric automobile |
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