CN101122262A - Hybrid power automobile motor warm-up control method - Google Patents
Hybrid power automobile motor warm-up control method Download PDFInfo
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- CN101122262A CN101122262A CNA200710131795XA CN200710131795A CN101122262A CN 101122262 A CN101122262 A CN 101122262A CN A200710131795X A CNA200710131795X A CN A200710131795XA CN 200710131795 A CN200710131795 A CN 200710131795A CN 101122262 A CN101122262 A CN 101122262A
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- 230000005611 electricity Effects 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 7
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
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Abstract
The invention belongs to an engine warm-up control method of a hybrid vehicle. During the warm-up, the engine is controlled to drive an electric motor to generate power. A hybrid system comprises a hybrid motor, a corresponding control system, a corresponding drive circuit, a hybrid controller HCU, and so on. During the engine warm-up, if the hybrid controller HCU finds the engine conditions, battery conditions and other vehicle conditions meet the requirement for power generation, the engine is controlled to work under the working conditions and drives the motor to generate power to charge the battery. Thus, the fuel oil economy of the vehicle will be promoted.
Description
Technical field
The invention belongs to a kind of controlling method of hybrid power automobile motor warm-up, more precisely, is a kind of controlling method that control engine-driving motor generates electricity when warming-up.
Background technique
On orthodox car, during the vehicle initial start-up, need allow engine idle idle running a period of time, with the temperature of rising motor, thus the efficient of raising motor; Simultaneously also be in order to allow the temperature of three-way catalyst raise, to improve the emission performance of discharging vehicle.There are some shortcomings in the warming-up of orthodox car, and is longer as warm-up period; Because the rotating speed and the output torque of motor are all lower during idling, cause engine efficiency very low, discharge poor; The output power of motor does not obtain utilizing in addition, is wasted fully.
Summary of the invention
The present invention discloses a kind of hybrid power automobile motor warm-up control method, when engine warm-up, increases the idling speed and the output torque of motor, generates electricity with drive motor, comes to power battery charging.
A kind of hybrid power automobile motor warm-up control method, mixed power system comprises hybrid powder motor and control corresponding system and drive circuit, hybrid controller HCU, inverter, engine control system EMS, electrokinetic cell and controller thereof, it is characterized in that: in warming-up process, if hybrid controller detects engine condition, when the situation of other system all satisfies requiring of generating on battery condition and the car, then according to parameters such as battery SOC and engine coolant temperature, calculate the rotating speed and the moment of torsion of motor, the control motor moves under this operating mode, drive motor generates electricity, and gives power battery charging.
In warming-up process, if hybrid controller detects engine condition, battery condition, and on the car situation of other system all satisfy the generating requiring the time, just according to battery SOC, parameters such as engine coolant temperature, calculate the rotating speed and the moment of torsion of motor, and allowing motor under this operating mode, move, drive motor generates electricity, and gives power battery charging.The electric energy of electrokinetic cell can be in the follow-up running process of vehicle be used for the auxiliary drive vehicle by motor.
The present invention has improved rotating speed and the output torque of motor in the idling process, thereby can improve the efficient of motor, and can shorten the time of engine warm-up.The output power of motor is used to generating in the idling process, stores in the storage battery, can improve the fuel economy of vehicle like this.
Description of drawings
Fig. 1 is the machine construction principle block diagram of mixed power system;
Fig. 2 is the electrical structure theory diagram of mixed power system;
Fig. 3 is a control flow chart of the present invention.
Embodiment
In the system involved in the present invention, as shown in Figure 1, motor is between motor and the gearbox, and the rotor of motor links to each other with engine crankshaft, and the other end links to each other with the input shaft of gearbox; The stator of motor links to each other with the motor end face, and the other end links to each other with gear box casing.
In the system involved in the present invention, hybrid controller HCU is the main control unit of whole power system.Hybrid controller obtains the relevant status parameter of motor by the CAN communication from engine management system EMS, engine speed etc., and send control command to EMS by the CAN bus, as halt instruction.
Hybrid controller carries out communication by CAN communication and battery management system BMS, obtains the status parameter of battery, and as SOC, battery temperature etc., and can send control command to battery management system BMS are as the disconnection of control battery contacts and closure etc.
Hybrid controller links to each other with electric machine controller MCU by the CAN communication, and obtain the current state information of motor, and send control command, as moment of torsion, rotating speed etc.
Storage battery can provide driving electric power to motor, and also the power storage that motor can be sent is provided with the back and uses.Inverter is two-phase/three-phase between motor and battery, the effect of ac/dc conversion.When battery provided driving electric power, inverter converted the two-phase direct current of battery to motor required threephase AC; When motor generated electricity, the threephase AC that inverter sends motor converted the two-phase direct current to.
Generating or the relevant parameter that drives are calculated by HCU; MCU is after receiving these parameters, and the control motor drives or generates electricity.
In warming-up process, the temperature of three-way catalyst is monitored by engine management system EMS, allow motor drive motor in warming-up process generate electricity, and engine condition must satisfy following condition simultaneously:
1, start to be in idling operation: if motor is not at idling operation, then be not warming-up process this moment.The present invention only limits to warming-up process.
2, the coolant temperature of motor is lower than a certain threshold value: judge with this whether motor is in warming-up process.
3, motor time of being in operation conditions has surpassed a certain threshold value: this is in order to allow engine system become stable.If motor one starts, motor just generates electricity with bigger moment of torsion, then might cause engine misses.
Allow motor drive motor in warming-up process generate electricity, the SOC of electrokinetic cell must be lower than a certain threshold value, and for example 90%, thereby to prevent that battery charge from excessively causing damage to battery.Below specify.
If electrokinetic cell and other circuit be access failure still, then should forbid electricity generate function.Because motor but can not form effective output current under generating operation mode, be easy on the output terminal of motor, form too high voltage, cause danger.
If the ABS system just works, then should forbid electricity generate function.ABS is the relevant system of safety, should avoid the generating of motor that its function is counteracted as far as possible.
Hybrid controller sends new idling speed instruction, the idling speed when the raising motor generates electricity to engine management system as required in warming-up process.
Hybrid controller comes the idling speed of calculation engine according to the parameters such as coolant temperature of motor.Be engine_idle_speed=f (engine_coolan_temperature)
Engine idle rotating speed during generating should not be lower than the idling speed under the conventional situation.If be lower than original idling speed, then the fluctuation of service of possible motor causes engine misses.The engine idle rotating speed that calculates has a upper limit, avoids motor power before warming-up is finished too big, causes waste of fuel.
Hybrid controller sends new torque command to engine management system as required, improves the output torque of motor in warming-up process.
Hybrid controller comes calculation engine should be used for the moment of torsion that drive motor generates electricity according to the SOC and the engine coolant temperature of battery,
generation_torque＝f(engine_coolan_temperature，SOC)
Be used for the moment of torsion that drive motor generates electricity and be lower than some threshold values, to avoid motor efficient under too low power generation torque drives low excessively.There is a upper limit in power generation torque, avoids motor power before warming-up is finished too big.Generating is a miscellaneous function of warming-up after all, is not main purpose.
The output torque of motor should comprise and overcomes engine drag, drives the moment of torsion that electrical load and drive motor generate electricity, promptly
The moment of torsion of the original output torque+drive motor of moment of torsion=motor that motor should be exported
If system condition no longer satisfies the requirement of generating electricity in the warming-up process, system is generation outage immediately, and the rotating speed and the output torque of motor returned to generating situation before.
Claims (8)
1. hybrid power automobile motor warm-up control method, mixed power system comprises hybrid powder motor and control corresponding system and drive circuit, hybrid controller HCU, inverter, engine control system EMS, electrokinetic cell and controller thereof, it is characterized in that: in warming-up process, if hybrid controller detects engine condition, when the situation of other system all satisfies requiring of generating on battery condition and the car, then according to parameters such as battery SOC and engine coolant temperature, calculate the rotating speed and the moment of torsion of motor, the control motor moves under this operating mode, drive motor generates electricity, and gives power battery charging.
2. hybrid power automobile motor warm-up control method according to claim 1, it is characterized in that: hybrid controller HCU is the main control unit of whole power system, hybrid controller HCU obtains the relevant status parameters of motor such as engine speed from engine control system EMS by the CAN communication, send control command by the CAN bus to EMS, as halt instruction; In warming-up process, the temperature of engine management system EMS monitoring three-way catalyst.
3. hybrid power automobile motor warm-up control method according to claim 1, it is characterized in that: hybrid controller HCU carries out communication by CAN communication and power battery management system BMS, obtain the status parameter of batteries such as SOC, battery temperature, BMS sends control command to battery management system, the disconnection and the closure of control battery contacts.
4. hybrid power automobile motor warm-up control method according to claim 1 is characterized in that: hybrid controller HCU links to each other with electric machine controller MCU by the CAN communication, obtains the current state information of motor.
5. hybrid power automobile motor warm-up control method according to claim 2 is characterized in that: motor drive motor in warming-up process generates electricity, and engine condition must satisfy following condition simultaneously: motor is in idling operation; The coolant temperature of motor is lower than a certain threshold value; The time that motor is in operation conditions has surpassed a certain threshold value.
6. hybrid power automobile motor warm-up control method according to claim 3 is characterized in that: allow motor drive motor in warming-up process generate electricity, the SOC of electrokinetic cell must be lower than a certain threshold value; If electrokinetic cell and other circuit be access failure still, then should forbid electricity generate function; If the ABS system just works, then should forbid electricity generate function.
7. hybrid power automobile motor warm-up control method according to claim 5 is characterized in that: the engine idle rotating speed during generating is higher than the idling speed under the conventional situation; Be used for high certain secure threshold of moment of torsion that drive motor generates electricity.
8. hybrid power automobile motor warm-up control method according to claim 6, it is characterized in that: if system condition no longer satisfies the requirement of generating electricity in the warming-up process, generation outage immediately, and the rotating speed of motor and output torque returned to situation before the generating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA200710131795XA CN101122262A (en) | 2007-09-03 | 2007-09-03 | Hybrid power automobile motor warm-up control method |
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| CNA200710131795XA CN101122262A (en) | 2007-09-03 | 2007-09-03 | Hybrid power automobile motor warm-up control method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267454A (en) * | 2010-06-01 | 2011-12-07 | 北汽福田汽车股份有限公司 | Cold-start control system and method of hybrid vehicle and hybrid vehicle |
| CN102431547A (en) * | 2011-10-28 | 2012-05-02 | 奇瑞汽车股份有限公司 | Method for controlling chargeable hybrid power vehicle |
| CN102991496A (en) * | 2011-09-15 | 2013-03-27 | 北汽福田汽车股份有限公司 | Energy recycling control method and system used for hybrid electric vehicle |
| CN104653314A (en) * | 2013-11-20 | 2015-05-27 | 福特环球技术公司 | Method And System For Improved Dilution Purging |
| CN104696127A (en) * | 2015-03-05 | 2015-06-10 | 安徽江淮汽车股份有限公司 | Preheating system for automobile engine and controlling method for preheating system |
| CN104859633A (en) * | 2015-05-07 | 2015-08-26 | 潍柴动力股份有限公司 | Method and device for controlling hybrid automobile |
| CN105083038A (en) * | 2014-05-08 | 2015-11-25 | 丰田自动车株式会社 | Power control system of hybrid vehicle |
| CN105922984A (en) * | 2016-04-22 | 2016-09-07 | 北京新能源汽车股份有限公司 | Hybrid electric vehicle, and method and device for controlling power system thereof |
| CN106585617A (en) * | 2015-10-09 | 2017-04-26 | 上海汽车集团股份有限公司 | Engine starting control method, device and HCU (hybrid electric vehicle control unit) |
| CN107487314A (en) * | 2016-12-23 | 2017-12-19 | 宝沃汽车（中国）有限公司 | A kind of hybrid-vehicle control method |
| CN108859814A (en) * | 2018-05-24 | 2018-11-23 | 北京新能源汽车股份有限公司 | A kind of hybrid vehicle charge control method, device and automobile |
| US10294874B2 (en) | 2013-11-20 | 2019-05-21 | Ford Global Technologies, Llc | Method and system for improved dilution purging |
| CN112298152A (en) * | 2019-07-25 | 2021-02-02 | 长城汽车股份有限公司 | Charging control method and automobile control equipment |
| CN112428833A (en) * | 2020-11-27 | 2021-03-02 | 东风越野车有限公司 | Direct-connected traveling crane power generation system and vehicle |
| CN112572403A (en) * | 2019-09-12 | 2021-03-30 | 比亚迪股份有限公司 | Hybrid electric vehicle and power generation control method and system thereof |
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2007
- 2007-09-03 CN CNA200710131795XA patent/CN101122262A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267454B (en) * | 2010-06-01 | 2013-12-25 | 北汽福田汽车股份有限公司 | Cold-start control system and method of hybrid vehicle and hybrid vehicle |
| CN102267454A (en) * | 2010-06-01 | 2011-12-07 | 北汽福田汽车股份有限公司 | Cold-start control system and method of hybrid vehicle and hybrid vehicle |
| CN102991496A (en) * | 2011-09-15 | 2013-03-27 | 北汽福田汽车股份有限公司 | Energy recycling control method and system used for hybrid electric vehicle |
| CN102991496B (en) * | 2011-09-15 | 2016-01-13 | 北汽福田汽车股份有限公司 | For energy recovery control method and the system of hybrid vehicle |
| CN102431547A (en) * | 2011-10-28 | 2012-05-02 | 奇瑞汽车股份有限公司 | Method for controlling chargeable hybrid power vehicle |
| CN104653314A (en) * | 2013-11-20 | 2015-05-27 | 福特环球技术公司 | Method And System For Improved Dilution Purging |
| US10294874B2 (en) | 2013-11-20 | 2019-05-21 | Ford Global Technologies, Llc | Method and system for improved dilution purging |
| CN105083038B (en) * | 2014-05-08 | 2017-09-12 | 丰田自动车株式会社 | The power control system of motor vehicle driven by mixed power |
| CN105083038A (en) * | 2014-05-08 | 2015-11-25 | 丰田自动车株式会社 | Power control system of hybrid vehicle |
| CN104696127A (en) * | 2015-03-05 | 2015-06-10 | 安徽江淮汽车股份有限公司 | Preheating system for automobile engine and controlling method for preheating system |
| CN104696127B (en) * | 2015-03-05 | 2017-03-01 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle engine preheating system and control method |
| CN104859633A (en) * | 2015-05-07 | 2015-08-26 | 潍柴动力股份有限公司 | Method and device for controlling hybrid automobile |
| CN106585617A (en) * | 2015-10-09 | 2017-04-26 | 上海汽车集团股份有限公司 | Engine starting control method, device and HCU (hybrid electric vehicle control unit) |
| CN106585617B (en) * | 2015-10-09 | 2019-06-14 | 上海汽车集团股份有限公司 | Engine start control method, device and HCU |
| CN105922984A (en) * | 2016-04-22 | 2016-09-07 | 北京新能源汽车股份有限公司 | Hybrid electric vehicle, and method and device for controlling power system thereof |
| CN107487314A (en) * | 2016-12-23 | 2017-12-19 | 宝沃汽车（中国）有限公司 | A kind of hybrid-vehicle control method |
| CN108859814A (en) * | 2018-05-24 | 2018-11-23 | 北京新能源汽车股份有限公司 | A kind of hybrid vehicle charge control method, device and automobile |
| CN112298152A (en) * | 2019-07-25 | 2021-02-02 | 长城汽车股份有限公司 | Charging control method and automobile control equipment |
| CN112572403A (en) * | 2019-09-12 | 2021-03-30 | 比亚迪股份有限公司 | Hybrid electric vehicle and power generation control method and system thereof |
| CN112572403B (en) * | 2019-09-12 | 2022-07-15 | 比亚迪股份有限公司 | Hybrid electric vehicle and power generation control method and system thereof |
| CN112428833A (en) * | 2020-11-27 | 2021-03-02 | 东风越野车有限公司 | Direct-connected traveling crane power generation system and vehicle |
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