CN113771647A - Control method of novel cluster type range extender set - Google Patents
Control method of novel cluster type range extender set Download PDFInfo
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- 230000002035 prolonged effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
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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
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a control method of a novel cluster-type range extender group, which comprises a controller and n range extenders connected with the controller, wherein the range extenders are R1 and R2.. Rn in sequence, and an economic power point P1 and a maximum power point P2 are preset in a single range extender; and (n-1) P2 < nP1, P1 < P2, the control method of the controller comprising the steps of: step 1, a controller detects the current charging power P and the current vehicle speed V; and 2, controlling the range extender group to work by the controller according to the current charging power P and the current vehicle speed V. The charging power distribution of the range extender set is reasonable, the NVH of the whole vehicle is obviously improved, and the noise is lower.
Description
Technical Field
The invention relates to the field of new energy power assemblies, in particular to a control method of a novel cluster type range extender set.
Background
The generated power output in a general range extender in the conventional range extender electric vehicle is generally small, when some large vehicles or vehicles run under special working conditions, the range extender needs large charging power output correspondingly, and the range extender usually runs at the maximum power point in order to ensure that large generated power is output, so that the range extender is difficult to maintain in an optimal economic operation area, and if the range extender is maintained at the maximum power point for a long time, the following problems exist:
1. the range extender operates at the maximum power point for a long time, the NVH performance of the whole vehicle is poor, and the noise is large;
2. the range extender runs at the maximum power point for a long time, so that the aim of saving the oil and the economy is difficult to achieve, and the service life of the range extender is obviously shortened;
3. when the demand is great power, if increase the journey ware and still operate the electricity generation in best economic district, when the operating mode demand can't be satisfied to the first generated power, the battery can consume great output, long-time operation, and it is serious to lead to the insufficient voltage of battery, and battery itself has to fill deeply and puts, and is big to the battery injury, the life-span is shortened.
Disclosure of Invention
The invention aims to solve the technical problems of reasonable distribution and switching of range extender power when a large range extender electric vehicle needs large generating power, and the purposes of economy, oil saving and good NVH performance of the range extender are ensured.
In order to achieve the above purpose, the control method of the novel cluster-type range extender set is implemented by the following technical scheme:
a control method of a novel cluster-type range extender set comprises a controller and n range extenders connected with the controller, wherein the range extenders are R1 and R2.. Rn in sequence, and an economic power point P1 and a maximum power point P2 are preset in a single range extender; and (n-1) P2 < nP1, P1 < P2, the control method of the controller comprising the steps of:
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 a vehicle speed transition interval V1-V2 is preset, wherein V1 is smaller than V2; when the vehicle speed V is in a transition range, the range extender group keeps the current working charging state, when the vehicle speed is less than V1, the range extender group is switched to the last working charging state, and when the vehicle speed is more than V2, the range extender group is switched to the next working charging state;
when the charging power P is less than P1, the range extender set is not started;
when the charging power P1 is not less than P2, starting the range extender R1, wherein the charging power of the range extender R1 is P1;
when the charging power P2 is not less than 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 not 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 not less than P2+ P2, the range extenders R1 and R2 are started, one of the charging powers of the range extenders R1 and R2 is P1, and the other one is P2;
when the charging power P2+ P2 is not less than P1+ P1+ P1, starting the range extenders R1 and R2, wherein the charging power of the range extenders R1 and R2 is P2;
when the charging power P1+ P1+ P1 is not less than P2+ P1+ P1, starting the range extenders R1, R2 and R3, wherein the charging powers of the range extenders R1, R2 and R3 are all P1;
.............................
when the charging power (n-1) P2 is not less than P and not more than nP1, starting the range extenders R1 and R2.. Rn-1, wherein the charging power of each range extender is P2;
when the charging power nP1 is not less than P and not more than (n-1) P1+ P2, starting the range extenders R1 and R2.. Rn, wherein the charging power of each range extender is P1;
.............................
when the charging power (n-a) P1+ aP2 is more than or equal to P and less than or equal to (n-a-1) P1+ (a +1) P2, the range extenders R1 and R2.. Rn 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 not less than P and not more than nP2, starting the range extenders R1 and R2.. Rn, wherein the charging power of one range extender is P1, and the charging power of the rest n-1 range extenders is P2;
when the charging power nP2 is not greater than P, the range extenders R1 and R2.. Rn are started, and the charging power of each range extender is P2.
Furthermore, the charging power P of the range extender set is (0-E) kW, and E is not more than nP 2.
Furthermore, the starting process of the range extender group needs to be processed by a heat engine process.
The invention has the beneficial effects that:
1. the charging power distribution of the range extender set is reasonable, the NVH of the whole vehicle is obviously improved, and the noise is lower;
2. the range extender set runs in the most economic area for a long time, 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 area to generate power, the requirement on the power performance of the vehicle is ensured, the power loss of the battery is obviously improved, and the service life of the battery is prolonged;
4. the cluster generator set is reserved with an expansion charging power space, and when the required charging power is continuously increased, the charging power requirement can be met by increasing the number of range extenders.
Drawings
Fig. 1 is a schematic structural diagram of a novel clustered range extender in an embodiment of the present invention.
Fig. 2 is a control logic diagram of a novel clustered range extender unit controller according to an embodiment of the present invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
As shown in the figures 1-2 of the drawings,
a control method of a novel cluster-type range extender group comprises a controller, 4 range extenders R1-a range extender 1, R2-a range extender 2, R3-a range extender 3 and R4-a range extender 4 which are connected with the controller;
the control method of the controller comprises the following steps:
the range extender group inquires a power distribution table according to the current charging power to obtain the 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 an economic power point P1 and a maximum power point P2 are preset in a single range extender; and 3P2 < 4P1, 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 to work according to the current charging power P and the current vehicle speed V, a vehicle speed transition interval V1-V2 is preset, V1 is smaller 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 smaller than V1, the range extender is switched to the last working charging state, and when the vehicle speed is larger than V2, the range extender is switched to the next working charging state; when the charging power is larger than P1, if not, the range extender set is closed, if yes, the range extender set is started and the next step is continued; the range extender group comprises 13 charging power points which are 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 set is not started;
when the charging power P1 is not less than P2, starting the range extender R1, wherein the charging power of the range extender R1 is P1;
when the charging power P2 is not less than 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 not 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 not less than P2+ P2, the range extenders R1 and R2 are started, one of the charging powers of the range extenders R1 and R2 is P1, and the other one is P2;
when the charging power P2+ P2 is not less than P1+ P1+ P1, starting the range extenders R1 and R2, wherein the charging power of the range extenders R1 and R2 is P2;
when the charging power P1+ P1+ P1 is not less than P2+ P1+ P1, starting the range extenders R1, R2 and R3, wherein the charging powers of the range extenders R1, R2 and R3 are all P1;
when the charging power P2+ P1+ P1 is not less than 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 R3 is P2;
when the charging power P2+ P2+ P1 is not less than P2+ P2+ P2, starting the range extenders R1, R2 and R3, wherein the charging power of the range extenders R1 and R2 is P2, and the charging power of the R3 is P1;
when the charging power P2+ P2+ P2 is not less than P1+ P1+ P1+ P1, the range extenders R1, R2 and R3 are started, and the charging power of the range extenders R1, R2 and R3 is P2;
when the charging power P1+ P1+ P1+ P1 is not less than P2+ P1+ P1+ P1, the range extenders R1, R2, R3 and R4 are started, and the charging power of the range extenders R1, R2, R3 and R4 is P1;
when the charging power P2+ P1+ P1+ P1 is not less than P not more than P2+ P2+ P1+ P1, the range extenders R1, R2, R3 and R4 are started, the charging power of the range extenders R1, R2 and R3 is P1, and the charging power of the R4 is P2;
when the charging power P2+ P2+ P1+ P1 is not less than P not more than P2+ P2+ P2+ P1, starting the range extenders R1, R2, R3 and R4, wherein the charging powers of the range extenders R1 and R2 are P1, and the charging powers of the R4 and R3 are P2;
when the charging power P2+ P2+ P2+ P1 is not less than P not more than P2+ P2+ P2+ P2, the range extenders R1, R2, R3 and R4 are started, the charging power of the range extenders R1, R2 and R3 is P2, and the charging power of the R4 is P1;
when the charging power 4P2 is not more than 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 group needs to pass through the heat engine process, and the next step is executed correspondingly after a certain 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 distribution of the range extender set is reasonable, the NVH of the whole vehicle is obviously improved, and the noise is lower;
2. the range extender set runs in the most economic area for a long time, 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 area to generate power, the requirement on the power performance of the vehicle is ensured, the power loss of the battery is obviously improved, and the service life of the battery is prolonged;
4. the cluster generator set is reserved with an expansion charging power space, and when the required charging power is continuously increased, the charging power requirement can be met by increasing the number of range extenders.
Although the invention has been described in detail above with reference to specific embodiments, it will be apparent to one skilled in the art that modifications or improvements may be made based on the invention. Accordingly, such modifications and improvements 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 device comprises a controller and n range extenders connected with the controller, wherein the range extenders are R1 and R2.. Rn in sequence, and an economic power point P1 and a maximum power point P2 are preset in each range extender; and (n-1) P2 < nP1, P1 < P2, the control method of the controller comprising the steps of:
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 a vehicle speed transition interval V1-V2 is preset, wherein V1 is smaller than V2; when the vehicle speed V is in a transition range, the range extender group keeps the current working charging state, when the vehicle speed is less than V1, the range extender group is switched to the last working charging state, and when the vehicle speed is more than V2, the range extender group is switched to the next working charging state;
when the charging power P is less than P1, the range extender set is not started;
when the charging power P1 is not less than P2, starting the range extender R1, wherein the charging power of the range extender R1 is P1;
when the charging power P2 is not less than 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 not 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 not less than P2+ P2, the range extenders R1 and R2 are started, one of the charging powers of the range extenders R1 and R2 is P1, and the other one is P2;
when the charging power P2+ P2 is not less than P1+ P1+ P1, starting the range extenders R1 and R2, wherein the charging power of the range extenders R1 and R2 is P2;
when the charging power P1+ P1+ P1 is not less than P2+ P1+ P1, starting the range extenders R1, R2 and R3, wherein the charging powers of the range extenders R1, R2 and R3 are all P1;
.............................
when the charging power (n-1) P2 is not less than P and not more than nP1, starting the range extenders R1 and R2.. Rn-1, wherein the charging power of each range extender is P2;
when the charging power nP1 is not less than P and not more than (n-1) P1+ P2, starting the range extenders R1 and R2.. Rn, wherein the charging power of each range extender is P1;
.............................
when the charging power (n-a) P1+ aP2 is more than or equal to P and less than or equal to (n-a-1) P1+ (a +1) P2, the range extenders R1 and R2.. Rn 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 not less than P and not more than nP2, starting the range extenders R1 and R2.. Rn, wherein the charging power of one range extender is P1, and the charging power of the rest n-1 range extenders is P2;
when the charging power nP2 is not greater than P, the range extenders R1 and R2.. Rn are started, and the charging power of each range extender is P2.
2. The method for controlling the novel clustered range extender group according to claim 1, wherein: the starting process of the range extender set is through a heat engine process.
3. The method for controlling the novel clustered range extender group according to claim 1, wherein: the number of the vehicle speed transition intervals 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
- 2021-08-06 CN CN202110899904.2A patent/CN113771647B/en active Active
Patent Citations (6)
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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 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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