CN113771647B - Novel control method of clustered range extender group - Google Patents
Novel control method of clustered range extender group Download PDFInfo
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- CN113771647B CN113771647B CN202110899904.2A CN202110899904A CN113771647B CN 113771647 B CN113771647 B CN 113771647B CN 202110899904 A CN202110899904 A CN 202110899904A CN 113771647 B CN113771647 B CN 113771647B
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- 239000004606 Fillers/Extenders Substances 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000007704 transition Effects 0.000 claims description 8
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
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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
- Y02T10/62—Hybrid vehicles
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a control method of a novel clustered range extender group, which comprises a controller and n range extenders connected with the controller, wherein the range extenders are R1 and R2. And (n-1) P2 < nP1, P1 < P2, the control method of the controller comprises the following steps: step 1, a controller detects the current charging power P and the current vehicle speed V; and 2, the controller controls the range extender group to work according to the current charging power P and the current vehicle speed V. The range extender group has reasonable charging power distribution, obviously improves NVH of the whole vehicle and has lower noise.
Description
Technical Field
The invention relates to the field of new energy power assemblies, in particular to a control method of a novel clustered range extender group.
Background
At present, the generated power output by a general range extender in an electric vehicle with the range extender is generally smaller, when some large vehicles or vehicles run under special working conditions, the range extender needs larger charging power output corresponding to the range extender, and in order to ensure that the range extender outputs larger generated power, the range extender always operates at a maximum power point, so that the range extender is difficult to maintain in an optimal economic operation area, such as the maximum power point of the range extender is maintained for a long time, namely the following problems exist:
1. the range extender runs at the maximum power point for a long time, so that the NVH of the whole vehicle is poor in performance and high in noise;
2. the range extender runs at the maximum power point for a long time, so that the purpose of economy and oil saving is difficult to achieve, and the service life of the range extender is obviously shortened;
3. when the demand is great power, if the journey extender still operates in the best economy district electricity generation, at first when the power generation can't satisfy operating mode demand, the battery can consume great output, and long-time operation leads to the electric deficiency of battery seriously, and there is deep charging deep discharging of battery itself, and is harmful to the battery greatly, shortens the life-span.
Disclosure of Invention
The invention aims to solve the technical problems of reasonable distribution and switching of the range extender power when the large-scale range extender electric vehicle needs larger power generation power, and ensure that the range extender achieves the aims of economy, oil saving and better NVH performance.
In order to achieve the aim of the invention, the control method of the novel clustered range extender set is realized by the following technical scheme:
the control method of the novel clustered range extender group comprises a controller and n range extenders connected with the controller, wherein the range extenders are R1 and R2. And (n-1) P2 < nP1, P1 < P2, the control method of the controller comprises the following steps:
step 1, a controller detects the current charging power P and the current vehicle speed V;
step 2, the controller controls the range extender group to work according to the current charging power P and the current vehicle speed V, and presets a vehicle speed transition interval V1-V2, wherein V1 is smaller than V2; when the vehicle speed V is in a transition interval, the range extender group keeps a current working charging state, when the vehicle speed is smaller than V1, the range extender group is switched to a previous working charging state, and when the vehicle speed is larger than V2, the range extender group is switched to a next working charging state;
when the charging power P is less than P1, the range extender group is not started;
when the charging power P1 is less than or equal to P and less than or equal to P2, starting the range extender R1, wherein the charging power of the range extender R1 is P1;
when the charging power P2 is less than or equal to P and less than or equal to P1+P1, starting the range extender R1, wherein the charging power of the range extender R1 is P2;
when the charging power P1+P1 is less than or equal to P and less than or equal to P1+P2, starting the range extenders R1 and R2, wherein the charging power of the range extenders R1 and R2 is P1;
when the charging power P2+P1 is less than or equal to P and less than or equal to P2+P2, starting the range extenders R1 and R2, wherein one of the charging powers of the range extenders R1 and R2 is P1, and the other is P2;
when the charging power P2+P2P is more than or equal to P and less than or equal to P1+P1+P1, the range extenders R1, R2 are activated, the charging power of the range extenders R1 and R2 is P2;
when the charging power P1+P1+P P is more than or equal to 1 and less than or equal to P2+P1+P1, the range extenders R1, R2, R3 are activated, the charging power of the range extenders R1, R2 and R3 is P1;
.............................
when the charging power (n-1) P2 is less than or equal to P and less than or equal to nP1, starting the range extenders R1 and R2.
When the charging power nP1 is less than or equal to P and less than or equal to (n-1) P1+P2, starting the range extenders R1 and R2.
.............................
When the charging power (n-a) P1+aP2 is less than or equal to P and less than or equal to (n-a-1) P1+ (a+1) P2, the range extenders R1 and R2 are started, the charging power of the n-a range extenders is P1, and the charging power of the a range extenders is P2; n is the total number of range extenders, a is a natural number and a is less than or equal to n;
.............................
when the charging power P1+ (n-1) P2 is less than or equal to P and less than or equal to nP2, the range extenders R1 and R2 are started, one range extender is charged with the power P1, and the charging power of the other n-1 range extenders is charged with the power P2;
when the charging power nP2 is less than or equal to P, the range extenders R1 and R2 are started.
Further, the charging power P of the range extender group is (0-E) kW, and E is less than or equal to nP2.
Further, the starting process of the range extender set needs to be subjected to a heat engine process.
The invention has the beneficial effects that:
1. the charging power of the range extender group is reasonably distributed, the NVH of the whole vehicle is obviously improved, and the noise is smaller;
2. the range extender set runs in the most economical area for a long time, so that the oil saving rate is obviously improved, the performance of the range extender is improved, and the service life is prolonged;
3. when the vehicle needs larger power for a long time, the range extender still operates in the optimal economic zone to generate power, so that the power performance requirement of the vehicle is ensured, the power shortage of the battery is obviously improved, and the service life of the battery is prolonged;
4. the cluster generator set reserves an expansion charging power space, and when the required charging power is continuously increased, the number of range extenders can be increased to meet the charging power requirement.
Drawings
Fig. 1 is a schematic structural diagram of a novel clustered range extender set in an embodiment of the invention.
Fig. 2 is a control logic diagram of a novel clustered range extender set controller according to an embodiment of the present invention.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
As shown in figures 1-2 of the drawings,
a control method of a novel cluster type range extender group comprises a controller, wherein 4 range extenders R1-range extender 1, R2-range extender 2, R3-range extender 3 and R4-range extender 4 are connected with the controller;
the control method of the controller comprises the following steps:
inquiring a power distribution table by the range extender group according to the current charging power to obtain a control range extender group to work;
the range extender group comprises four range extenders, namely R1, R2, R3 and R4 in sequence, the preset power of the four range extenders is the same, and the single range extender is preset with an economic power point P1 and a maximum power point P2; and 3P2 is less than 4P1, P1 is less than P2, the control method of the controller comprises the following steps:
step 1, a controller detects the current charging power P and the current vehicle speed V;
step 2, the controller controls the range extender to work according to the current charging power P and the current vehicle speed V, and presets a vehicle speed transition interval V1-V2, wherein V1 is less than V2, when the vehicle speed V is in the transition interval, the range extender keeps the current working charging state, when the vehicle speed is less than V1, the range extender is switched to the last working charging state, and when the vehicle speed is greater than V2, the range extender is switched to the next working charging state; when the charging power is greater than P1, if not, the increase Cheng Qizu is closed, if so, the range extender group is started and the next step is continuously executed; the range extender group has 13 charging power points, namely P1, P2, P1+P2, 2P2, 3P1, 2P1+P2, P1+2P2, 3P2, 4P1, 3P1+P2, 2P1+2P2, P1+3P2 and 4P2 in sequence;
the range extender group works according to the following power distribution table:
when the charging power P is less than P1, the range extender group is not started;
when the charging power P1 is less than or equal to P and less than or equal to P2, starting the range extender R1, wherein the charging power of the range extender R1 is P1;
when the charging power P2 is less than or equal to P and less than or equal to P1+P1, starting the range extender R1, wherein the charging power of the range extender R1 is P2;
when the charging power P1+P1 is less than or equal to P and less than or equal to P1+P2, starting the range extenders R1 and R2, wherein the charging power of the range extenders R1 and R2 is P1;
when the charging power P2+P1 is less than or equal to P and less than or equal to P2+P2, starting the range extenders R1 and R2, wherein one of the charging powers of the range extenders R1 and R2 is P1, and the other is P2;
when the charging power P2+P2P is more than or equal to P and less than or equal to P1+P1+P1, the range extenders R1, R2 are activated, the charging power of the range extenders R1 and R2 is P2;
when the charging power P1+P1+P P is more than or equal to 1 and less than or equal to P2+P1+P1, the range extenders R1, R2, R3 are activated, the charging power of the range extenders R1, R2 and R3 is P1;
when the charging power P2+P1+P1 is less than or equal to P and less than or equal to P2+P2+P1, starting the range extenders R1, R2 and R3, wherein the charging power of the range extenders R1 and R2 is P1, and the charging power of the range extenders R3 is P2;
when the charging power P2+P2+P P is more than or equal to 1 and less than or equal to P2+P2+P2, the range extenders R1, R2, R3 are activated, the charging power of the range extenders R1 and R2 is P2, and the charging power of the range extender R3 is P1;
when the charging power P2+P2+P2P is more than or equal to P and less than or equal to P1+P1+P1+P1, the range extenders R1, R2, R3 are activated, the charging power of the range extenders R1, R2 and R3 is P2;
when the charging power P1+P1+P1+P P is more than or equal to 1 and less than or equal to P2+P1+P1+P1, the range extenders R1, R2, R3, R4 are activated, the charging power of the range extenders R1, R2, R3 and R4 is P1;
when the charging power P2+P1+P1+P P is more than or equal to 1 and less than or equal to P2+P2+P1+P1, the range extenders R1, R2, R3, R4 are activated, the charging power of the range extenders R1, R2 and R3 is P1, and the charging power of the range extender R4 is P2;
when the charging power P2+P2+P1+P1 is less than or equal to P and less than P and P, starting the range extenders R1, R2, R3 and R4, wherein the charging power of the range extenders R1 and R2 is P1, and the charging power of the range extenders R4 and R3 is P2;
when the charging power P2+P2+P2+P P is more than or equal to 1 and less than or equal to P2+P2+P2+P2, the range extenders R1, R2, R3, R4 are activated, the charging power of the range extenders R1, R2 and R3 is P2, and the charging power of the range extender R4 is P1;
when the charging power 4P2 is less than or equal to P, the range extenders R1, R2, R3 and R4 are started, and the charging power of each range extender is P2.
In this embodiment, the starting process of the range extender set needs to be performed by a heat engine process, and then the next step is correspondingly performed for a certain period of time.
In the present embodiment, the number of the vehicle speed transition sections is one.
The invention has the beneficial effects that:
1. the charging power of the range extender group is reasonably distributed, the NVH of the whole vehicle is obviously improved, and the noise is smaller;
2. the range extender set runs in the most economical area for a long time, so that the oil saving rate is obviously improved, the performance of the range extender is improved, and the service life is prolonged;
3. when the vehicle needs larger power for a long time, the range extender still operates in the optimal economic zone to generate power, so that the power performance requirement of the vehicle is ensured, the power shortage of the battery is obviously improved, and the service life of the battery is prolonged;
4. the cluster generator set reserves an expansion charging power space, and when the required charging power is continuously increased, the number of range extenders can be increased to meet the charging power requirement.
While the invention has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (3)
1. A control method of a novel cluster type range extender group is characterized by comprising the following steps: the range extender comprises a controller and n range extenders connected with the controller, wherein the range extenders are R1 and R2. And (n-1) P2 < nP1, P1 < P2, the control method of the controller comprises the following steps:
step 1, a controller detects the current charging power P and the current vehicle speed V;
step 2, the controller controls the range extender group to work according to the current charging power P and the current vehicle speed V, and presets a vehicle speed transition interval V1-V2, wherein V1 is smaller than V2; when the vehicle speed V is in a transition interval, the range extender group keeps a current working charging state, when the vehicle speed is smaller than V1, the range extender group is switched to a previous working charging state, and when the vehicle speed is larger than V2, the range extender group is switched to a next working charging state;
when the charging power P is less than P1, the range extender group is not started;
when the charging power P1 is less than or equal to P2, starting the range extender R1, wherein the charging power of the range extender R1 is P1;
when the charging power P2 is less than or equal to P < P1+P1, starting the range extender R1, wherein the charging power of the range extender R1 is P2;
when the charging power P1+P1 is less than or equal to P and less than P1+P2, starting the range extenders R1 and R2, wherein the charging power of the range extenders R1 and R2 is P1;
when the charging power P2+P1 is less than or equal to P < P2+P2, starting the range extenders R1 and R2, wherein one of the charging powers of the range extenders R1 and R2 is P1, and the other is P2;
when the charging power P2+P2P is less than or equal to P1+P1+P1, the range extenders R1, R2 are activated, the charging power of the range extenders R1 and R2 is P2;
when the charging power P1+P1+P P is more than or equal to 1 and less than P2+P1+P1, the range extenders R1, R2, R3 are activated, the charging power of the range extenders R1, R2 and R3 is P1;
.............................
when the charging power (n-1) P2 is less than or equal to P < nP1, starting the range extenders R1 and R2.
When the charging power nP1 is less than or equal to P < (n-1) P1+P2, starting the range extenders R1 and R2.
.............................
When the charging power (n-a) P1+aP2 is less than or equal to P < (n-a-1) P1+ (a+1) P2, the range extenders R1 and R2 are started, the charging power of the n-a range extenders is P1, the charging power of the a range extenders is P2, n is the total number of the range extenders, a is a natural number and a is less than or equal to n;
.............................
when the charging power P1+ (n-1) P2 is less than or equal to P < nP2, starting the range extenders R1 and R2.
When the charging power nP2 is less than or equal to P, the range extenders R1 and R2 are started.
2. The control method of the novel clustered range extender set according to claim 1, wherein the control method comprises the following steps: the starting process of the range extender group passes through a heat engine process.
3. The control method of the novel clustered range extender set according to claim 1, wherein the control method comprises the following steps: the number of the vehicle speed transition sections is at least one.
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| CN111391819A (en) * | 2020-03-06 | 2020-07-10 | 浙江吉利新能源商用车集团有限公司 | Range extender control method, device, equipment and storage medium |
| CN111497642A (en) * | 2020-03-24 | 2020-08-07 | 广西玉柴机器股份有限公司 | Cluster type generator set control method |
| CN112572165A (en) * | 2019-09-27 | 2021-03-30 | 比亚迪股份有限公司 | N-gear power generation control method, vehicle control unit, vehicle and storage medium |
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2021
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| CN105774798A (en) * | 2016-03-25 | 2016-07-20 | 北京新能源汽车股份有限公司 | Electric automobile range extending type control method, controller and electric automobile |
| JP2020062906A (en) * | 2018-10-15 | 2020-04-23 | エーシーテクノロジーズ株式会社 | Estimated power generation and charging control method for range extender vehicle |
| CN110126646A (en) * | 2019-05-13 | 2019-08-16 | 奇瑞新能源汽车技术有限公司 | A kind of the distance increasing unit control method and its electric car of extended-range electric vehicle |
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