CN109291914A - A kind of voltage protection method of hybrid vehicle - Google Patents
A kind of voltage protection method of hybrid vehicle Download PDFInfo
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- CN109291914A CN109291914A CN201710613690.1A CN201710613690A CN109291914A CN 109291914 A CN109291914 A CN 109291914A CN 201710613690 A CN201710613690 A CN 201710613690A CN 109291914 A CN109291914 A CN 109291914A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- 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
Abstract
The present invention relates to a kind of voltage protection method of hybrid vehicle, entire car controller (hereinafter referred to as vehicle ECU) real-time monitoring busbar voltage u, while judging whole drive mode；Under different drive modes, for bus overvoltage or under-voltage, different control strategy and measure are taken, guarantees that busbar voltage u is in controlled range.This method can guarantee under the premise of normal driving, solve the problems, such as bus mistake/deficient automatically.
Description
Technical field
The present invention relates to a kind of voltage protection methods of hybrid vehicle, belong to new-energy automobile field.
Background technique
Such as Fig. 1, hybrid vehicle be based on engine (6) and (10) two power platforms of driving motor, when low speed by
Driving motor (10) pure electric drive avoids engine (6) from being driven in inefficient area work, high speed by engine (6), or drive in parallel
It is dynamic, thus more energy efficient compared with traditional vehicle, it is easier to by big well-established；Drive system mostly uses permanent magnet synchronous electric currently on the market
Machine, since the actual road conditions that vehicle is faced in the process of moving are complicated, permanent magnet synchronous motor is since rotor is permanent magnet, rotation
When just have back-emf generation, it is necessary to weak magnetic control, this results in busbar voltage fluctuation larger.Therefore, perfect voltage is protected
Shield strategy be such vehicle it is indispensable.
Fig. 1 is deep hybrid power (hereinafter referred to as deep mixed) vehicle that existing market is widely used, using combined hybrid system,
Engine (6) is connected to ISG motor (8) by normal-close clutch device, and the two keeps same rotational speed, ISG motor (8) and driving motor
(10) by can split clutch be connected, energy resource system is powered using power battery or super capacitor, and basic traveling strategy is
When vehicle starts, clutch is separated, and engine (6) and ISG motor (8) are shut down, and only driving motor (10) works, pure electric vehicle row
It sails, when speed is higher than a certain speed per hour, ISG motor (8) starts engine (6) and controls revolving speed close with driving motor (10)
Revolving speed, then clutch be closed, carry out the work of mixed connection mode.
Pressure point and under-voltage point substantially was arranged in currently used voltage protection strategy, and drop volume breaks power simultaneously when over-voltage
Alarm, early warning parking power generation when under-voltage, or increase setting drop power points and buffering course, it reduces to the greatest extent due to electric voltage exception wave
It moves to impact brought by each components of dynamical system, it is only simple although such method can have the function that warning
Prompt and alarm, it is still necessary to driver takes the concrete measures, it cannot be guaranteed that solved under the premise of normal driving/under-voltage
The problem of, and classification processing is not carried out according to the specific working condition of vehicle.
Summary of the invention
The object of the present invention is to provide a kind of voltage protection methods of hybrid vehicle, cannot to solve the prior art
It adopts an effective measure under the premise of guaranteeing normal driving and solves the problems, such as bus mistake/under-voltage.
To achieve the above object, the solution of the present invention includes:
A kind of voltage protection method of hybrid vehicle of the invention, comprising the following steps:
1) detect busbar voltage u and speed v, judge whole drive mode, whole drive mode include electric-only mode and
Mixed dynamic model formula；
2) when vehicle works in electric-only mode, and busbar voltage u is less than under-voltage early-warning point umin, at least control ISG
Motor generates electricity；
3) when vehicle works in electric-only mode, and busbar voltage u is greater than over-voltage early-warning point umax, at least control is started
Machine stops working；
4) when vehicle works in mixed dynamic model formula, and busbar voltage u is less than under-voltage early-warning point umin, engine is at least controlled
Increase load, control driving motor reduces load；
5) when vehicle works in mixed dynamic model formula, and busbar voltage u is greater than over-voltage early-warning point umax, engine is at least controlled
Reduce load, control driving motor increases load.
Further, the whole drive mode further includes extreme modes；
Under extreme modes,
A) when vehicle enters high-speed driving road conditions, and busbar voltage u is greater than over-voltage early-warning point umax, at least control is started
Machine stops working；
B) when vehicle enters high-speed driving road conditions, and busbar voltage u is less than under-voltage early-warning point umin, at least control ISG
Motor generates electricity；
C) when vehicle enters long-time descending road conditions, and busbar voltage u is greater than over-voltage early-warning point umax, hair is at least closed
Motivation and driving motor, and hypervelocity alarm is issued to driver；
D) when vehicle enters long-time descending road conditions, and when busbar voltage u is less than under-voltage early-warning point umin, at least make to drive
Feed condition is being slided in dynamic motor work.
Further, in step 1), the whole drive mode is judged by speed v:
The triggering speed that electric-only mode is converted to mixed dynamic model formula is v1；
When speed v is less than mixed dynamic triggering speed v1, judge that vehicle is in pure electric vehicle drive mode；
When speed v is greater than mixed dynamic triggering speed v1, judge that vehicle is in mixed dynamic model formula.
Further,
The triggering speed that electric-only mode is converted to mixed dynamic model formula is v1；
The triggering speed that mixed dynamic dynamic model formula is converted to extreme modes is vmax；
When speed v is less than mixed dynamic triggering speed v1, judge that vehicle is in pure electric vehicle drive mode；
When being greater than mixed dynamic triggering speed v1 less than vmax, judge that vehicle is in mixed dynamic model formula；
When speed v is greater than the triggering speed vmax of extreme modes, judge that vehicle is in extreme modes.
Further, the triggering speed vmax of the extreme modes is speed of the driving motor work under peak speed.
Further, under judging vehicle high-speed driving road conditions either for a long time according to speed and driver's throttle signal feedback
Slope road conditions:
If speed v maintains triggering speed vmax, and driving motor work then judges vehicle at this time under driving instruction
Road conditions are high-speed driving road conditions；
If speed v is greater than triggering speed vmax, and driving motor work then judges vehicle road at this time under power generation command
Condition is long-time descending road conditions.
Further, the control ISG electric power generation, the output torque value of ISG motor is according to the instantaneous electric power of vehicle
It is calculated multiplied by coefficient divided by current rotating speed.
Further, under-voltage early-warning point umin is greater than under-voltage fault point, and over-voltage early-warning point umax is less than over-voltage fault point.
Further, voltage back diffirence value a and b is set；After the voltage protection step implements intervention, when busbar voltage u is big
When umin+a or u is less than umax-b, corresponding voltage protection step is exited.
The invention has the benefit that
The present invention, in different driving mode operation feature, adopts an effective measure carry out power generation boosting or consumption respectively according to vehicle
Electricity decompression effectively solves the problems, such as bus mistake/under-voltage under the premise of guaranteeing normal driving, and protects automated system operation, one
As do not need driver and take the concrete measures.
Further, extreme modes are added for high speed extremity in the present invention, are based on different road conditions in extreme modes, adopt
The pressure stabilizing measure for taking difference, keeps the pressure stabilizing under extreme modes more fast and effective.
Meanwhile this method is slightly larger than the under-voltage early-warning point of under-voltage point by setting and was slightly smaller than the over-voltage early warning of pressure point
Point is intervened before mistake/under-voltage point arrives and takes treatment measures, will not impact to vehicle and normal driving.
Detailed description of the invention
Fig. 1 is hybrid power automobile power system configuration picture；
Fig. 2 is voltage protection strategic process figure；
Fig. 3 is the voltage protection strategic process figure with extreme modes.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawing.
A kind of hybrid power automobile power system configuration picture as shown in Figure 1, including vehicle ECU (1), Engine ECU
(2), electric machine controller (3), energy storage device management system (4), energy storage device (5), engine (6), normal-close clutch device (7), ISG
Motor (8), clutch (9), driving motor (10), transmission system (11), transmission shaft (12).
The voltage protection method embodiment 1 of hybrid vehicle
A kind of voltage protection method of hybrid vehicle as shown in Figure 2, includes the following steps:
1)/under-voltage early-warning parameters value umax, umin after vehicle ECU (1) is powered on, was initialized；Wherein, the setting of umax value
The ceiling voltage to allow lower than bus, the setting of umin value be higher than minimum voltage that bus is allowed (due to super capacitor reason
By 0V can be put into, so the voltage may be configured as the minimum voltage of electric machine controller when energy storage device is super capacitor).Just
Beginning state triggers speed parameter value v1；Wherein, v1 is the switch speed that electric-only mode is converted to mixed dynamic model formula.Initialization electricity
Push back difference a, b；Wherein, a, b symbol are all positive.
2) busbar voltage u value is detected, real-time speed v value is detected；Vehicle operating modes, 0≤v≤v1 are judged according to speed v
When vehicle be pure electric vehicle driving, vehicle is engine and driving motor parallel connection combination drive when v > v1, judges vehicle operating modes
Busbar voltage u value is judged respectively again afterwards.
3) when speed v is in section [0, v1], clutch (9) is disconnected at this time, vehicle driving in pure electric vehicle drive mode,
Umin < u < umax is judged as to u value, then return step 2) and vehicle normal operation；U≤umin is judged as to u value, then vehicle
ECU (1) sends ISG motor perseverance torque power generation command to electric machine controller (3), makes the permanent pili torti electricity of ISG motor (8), torque value root
It is determined according to the demand power that vehicle calculates, as u > umin+a, ends processing return step 2)；U >=umax is judged as to u value,
Then vehicle ECU (1) sends oil-break instruction to Engine ECU (2), makes engine stop oil spout, while sending out to electric machine controller (3)
It send ISG motor perseverance torque drive to instruct, drives ISG motor (8) engine (6) as load and carries out pressure power consumption, as u <
When umax-b, return step 2 is ended processing).
4) when speed v is in section (v1 ,+∞), ISG motor (8) start engine (6) and by revolving speed control with drive
Revolving speed similar in dynamic motor (10), then clutch (9) is closed, and into mixed dynamic model formula, engine and driving motor is negative at this time
Lotus is allocated according to the external characteristic curve of engine and driving motor according to optimum efficiency by integrated vehicle control tactics.To u value
It is judged as umin < u < umax, then return step 2) and vehicle normal operation；U >=umax is judged as to u value, then vehicle ECU
(1) distribution engine and driving motor load proportion are recalculated, the load of driving motor (10) is increased, is reduced engine (6)
Load end processing return step 2 as u < umax-b)；U≤umin is judged as to u value, then reduces driving motor (10)
Load, increase engine (6) load, and simultaneously to electric machine controller (3) send the small torque power generation command of ISG motor, make
The small torque power generation of ISG motor (8), the torque value are counted multiplied by coefficient divided by current rotating speed according to the instantaneous electric power of vehicle
It calculates, as u > umin+a, ends processing return step 2).
The voltage protection method embodiment 2 of hybrid vehicle
A kind of voltage protection method of hybrid vehicle as shown in Figure 3, includes the following steps:
1)/under-voltage early-warning parameters value umax, umin after vehicle ECU (1) is powered on, was initialized；Wherein, the setting of umax value
The ceiling voltage to allow lower than bus, the setting of umin value be higher than minimum voltage that bus is allowed (due to super capacitor reason
By 0V can be put into, so the voltage may be configured as the minimum work electricity of electric machine controller when energy storage device is super capacitor
Pressure).The value of init state triggering speed parameter value v1, vmax；Wherein, v1 is that electric-only mode is converted to cutting for mixed dynamic model formula
Throw-over degree, vmax are vehicle F-Zero (corresponding motor peak speeds).Initialization voltage return difference value a, b；Wherein, a, b symbol
All it is positive.
2) busbar voltage u value is detected, real-time speed v value is detected；Vehicle operating modes, 0≤v≤v1 are judged according to speed v
When vehicle be pure electric vehicle driving, vehicle is engine and driving motor parallel connection combination drive when v1 < v < vmax, when v >=vmax
Vehicle enters extreme modes, judges respectively busbar voltage u value again after judging vehicle operating modes.
3) when speed v is in section [0, v1], clutch (9) is disconnected at this time, vehicle driving in pure electric vehicle drive mode,
Umin < u < umax is judged as to u value, then return step 2) and vehicle normal operation；U≤umin is judged as to u value, then vehicle
ECU (1) sends ISG motor perseverance torque power generation command to electric machine controller (3), makes the permanent pili torti electricity of ISG motor (8), torque value root
It is determined according to the demand power that vehicle calculates, as u > umin+a, ends processing return step 2)；U >=umax is judged as to u value,
Then vehicle ECU (1) sends oil-break instruction to Engine ECU (2), makes engine stop oil spout, while sending out to electric machine controller (3)
It send ISG motor perseverance torque drive to instruct, drives ISG motor (8) engine (6) as load and carries out pressure power consumption, as u <
When umax-b, return step 2 is ended processing).
4) when speed v is in section (v1, vmax), ISG motor (8) start engine (6) and by revolving speed control with
Revolving speed similar in driving motor (10), then clutch (9) is closed, into mixed dynamic model formula, engine and driving motor at this time
Load is allocated according to the external characteristic curve of engine and driving motor according to optimum efficiency by integrated vehicle control tactics.To u
Value is judged as umin < u < umax, then return step 2) and vehicle normal operation；U >=umax is judged as to u value, then vehicle ECU
(1) distribution engine and driving motor load proportion are recalculated, the load of driving motor (10) is increased, is reduced engine (6)
Load end processing return step 2 as u < umax-b)；U≤umin is judged as to u value, then reduces driving motor (10)
Load, increase engine (6) load, and simultaneously to electric machine controller (3) send the small torque power generation command of ISG motor, make
The small torque power generation of ISG motor (8), the torque value are counted multiplied by coefficient divided by current rotating speed according to the instantaneous electric power of vehicle
It calculates, as u > umin+a, ends processing return step 2).
5) when speed v be in section [vmax ,+∞) when, the speed of mainshaft of driving motor (10) equal or exceed driving electricity
The peak speed of machine (10), vehicle driving are sentenced in extreme modes, vehicle ECU (1) according to speed v and driver's throttle signal feedback
Road conditions locating for disconnected vehicle.If speed v is maintained vmax or so (i.e. speed fluctuates in a certain range above or below vmax), and is driven
Motor (10) works in weak magnetic driving condition, then judges that vehicle enters high-speed driving road conditions, be judged as umin < u to u value at this time
< umax, then return step 2) and vehicle operate normally；U >=umax is judged as to u value, then vehicle ECU (1) is to electric machine controller
(3) revision directive of driving motor electrical angle is sent, driving motor (10) is made to carry out electrical angle amendment, clutch (9) separates, simultaneously
Oil-break instruction is sent to Engine ECU (2), so that engine (6) is stopped oil spout, also enables ISG motor by electric machine controller (3)
(8) dragging engine (6) ends processing return step 2 as u < umax-b into power modes)；To u value be judged as u≤
Umin, then vehicle ECU (1) sends the small torque power generation command of ISG motor to electric machine controller (3), makes ISG motor (8) small torque
Power generation, which is calculated multiplied by coefficient divided by current rotating speed according to the instantaneous electric power of vehicle, as u > umin+a,
End processing return step 2).If speed v is greater than vmax, and driving motor (10) work then judges in weak magnetic generating state
Vehicle enters long-time descending road conditions, is judged as umin < u < umax to u value at this time, then return step 2) and vehicle normally transport
Row；U≤umin is judged as to u value, then vehicle ECU (1) sends increase driving motor feed torque to electric machine controller (3) and refers to
It enables, accelerates energy storage and end processing return step 2 as u > umin+a)；U >=umax is judged as to u value, then (1) vehicle ECU
Standby command is sent to electric machine controller (3), (3) zero torque of electric machine controller turns off IGBT, while vehicle ECU (1) is to starting
Machine ECU (2) sends oil-break instruction, makes engine stop oil spout, and in addition instrument board shows overspeed alarming, and driver is prompted to subtract
Speed operation, after speed drops back to vmax, then carries out power consumption processing, as u < umax-b, ends processing return step 2).
Specific embodiment is presented above, but the present invention is not limited to described embodiment.Base of the invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention
Method, model, formula, the parameter of shape do not need to spend creative work.In the feelings for not departing from the principle and spirit of the invention
The change, modification, replacement and modification carried out under condition to embodiment are still fallen in protection scope of the present invention.
Claims (9)
1. a kind of voltage protection method of hybrid vehicle, which comprises the following steps:
1) busbar voltage u and speed v is detected, judges that whole drive mode, whole drive mode include electric-only mode and mix dynamic
Mode；
2) when vehicle works in electric-only mode, and busbar voltage u is less than under-voltage early-warning point umin, ISG motor is at least controlled
It generates electricity；
3) when vehicle works in electric-only mode, and busbar voltage u is greater than over-voltage early-warning point umax, at least control engine stops
Only work；
4) when vehicle works in mixed dynamic model formula, and busbar voltage u is less than under-voltage early-warning point umin, at least control engine increases
Load, control driving motor reduce load；
5) when vehicle works in mixed dynamic model formula, and busbar voltage u is greater than over-voltage early-warning point umax, at least control engine reduces
Load, control driving motor increase load.
2. a kind of voltage protection method of hybrid vehicle according to claim 1, which is characterized in that the vehicle drives
Dynamic model formula further includes extreme modes；
Under extreme modes,
A) when vehicle enters high-speed driving road conditions, and busbar voltage u is greater than over-voltage early-warning point umax, at least control engine stops
Only work；
B) when vehicle enters high-speed driving road conditions, and busbar voltage u is less than under-voltage early-warning point umin, ISG motor is at least controlled
It generates electricity；
C) when vehicle enters long-time descending road conditions, and busbar voltage u is greater than over-voltage early-warning point umax, engine is at least closed
And driving motor, and hypervelocity alarm is issued to driver；
D) when vehicle enters long-time descending road conditions, and when busbar voltage u is less than under-voltage early-warning point umin, at least make driving electricity
Feed condition is being slided in machine work.
3. a kind of voltage protection method of hybrid vehicle according to claim 1, which is characterized in that in step 1),
The whole drive mode is judged by speed v:
The triggering speed that electric-only mode is converted to mixed dynamic model formula is v1；
When speed v is less than mixed dynamic triggering speed v1, judge that vehicle is in pure electric vehicle drive mode；
When speed v is greater than mixed dynamic triggering speed v1, judge that vehicle is in mixed dynamic model formula.
4. a kind of voltage protection method of hybrid vehicle according to claim 2, which is characterized in that
The triggering speed that electric-only mode is converted to mixed dynamic model formula is v1；
The triggering speed that mixed dynamic dynamic model formula is converted to extreme modes is vmax；
When speed v is less than mixed dynamic triggering speed v1, judge that vehicle is in pure electric vehicle drive mode；
When being greater than mixed dynamic triggering speed v1 less than vmax, judge that vehicle is in mixed dynamic model formula；
When speed v is greater than the triggering speed vmax of extreme modes, judge that vehicle is in extreme modes.
5. a kind of voltage protection method of hybrid vehicle according to claim 4, which is characterized in that the extreme mould
The triggering speed vmax of formula is speed of the driving motor work under peak speed.
6. a kind of voltage protection method of hybrid vehicle according to claim 2, which is characterized in that according to speed and
Driver's throttle signal feedback judges vehicle high-speed driving road conditions either long-term descending road conditions:
If speed v maintains triggering speed vmax, and driving motor work then judges vehicle road conditions at this time under driving instruction
For high-speed driving road conditions；
If speed v is greater than triggering speed vmax, and driving motor work then judges that vehicle road conditions are at this time under power generation command
Long-time descending road conditions.
7. a kind of voltage protection method of hybrid vehicle according to claim 1 or 2, which is characterized in that the control
The output torque value of ISG electric power generation processed, ISG motor is carried out multiplied by coefficient divided by current rotating speed according to the instantaneous electric power of vehicle
It calculates.
8. a kind of voltage protection method of hybrid vehicle according to claim 1 or 2, which is characterized in that under-voltage pre-
Alert point umin is greater than under-voltage fault point, and over-voltage early-warning point umax is less than over-voltage fault point.
9. a kind of voltage protection method of hybrid vehicle according to claim 1 or 2, which is characterized in that setting electricity
Push back difference a and b；After the voltage protection step implements intervention, when busbar voltage u, which is greater than umin+a or u, is less than umax-b,
Corresponding voltage protection step exits.
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| CN201710613690.1A CN109291914B (en) | 2017-07-25 | 2017-07-25 | Voltage protection method of hybrid electric vehicle |
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| CN201710613690.1A CN109291914B (en) | 2017-07-25 | 2017-07-25 | Voltage protection method of hybrid electric vehicle |
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| US6362580B1 (en) * | 1999-03-10 | 2002-03-26 | Suzuki Motor Corporation | Controller of vehicle propulsion system |
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| CN103043006A (en) * | 2012-12-20 | 2013-04-17 | 联合汽车电子有限公司 | Voltage control method of electronic controller of car body |
| CN105216773A (en) * | 2015-10-20 | 2016-01-06 | 湖南南车时代电动汽车股份有限公司 | A kind of motor vehicle driven by mixed power compound source control method and system |
| CN105667429A (en) * | 2016-01-11 | 2016-06-15 | 靳超 | Automatic voltage stabilization control and protection method, device and system for vehicle-mounted generator |
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2017
- 2017-07-25 CN CN201710613690.1A patent/CN109291914B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6362580B1 (en) * | 1999-03-10 | 2002-03-26 | Suzuki Motor Corporation | Controller of vehicle propulsion system |
| CN102815221A (en) * | 2012-06-07 | 2012-12-12 | 广州益维电动汽车有限公司 | Electromobile power platform system with integrative control |
| CN103043006A (en) * | 2012-12-20 | 2013-04-17 | 联合汽车电子有限公司 | Voltage control method of electronic controller of car body |
| CN105216773A (en) * | 2015-10-20 | 2016-01-06 | 湖南南车时代电动汽车股份有限公司 | A kind of motor vehicle driven by mixed power compound source control method and system |
| CN105667429A (en) * | 2016-01-11 | 2016-06-15 | 靳超 | Automatic voltage stabilization control and protection method, device and system for vehicle-mounted generator |
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| CN109291914B (en) | 2020-06-30 |
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