CN1896476A - Control for decreasing idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile - Google Patents
Control for decreasing idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile Download PDFInfo
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- CN1896476A CN1896476A CN 200510016981 CN200510016981A CN1896476A CN 1896476 A CN1896476 A CN 1896476A CN 200510016981 CN200510016981 CN 200510016981 CN 200510016981 A CN200510016981 A CN 200510016981A CN 1896476 A CN1896476 A CN 1896476A
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Abstract
This invention relates to a kind of controlling method to reduce rotation speed fluctuation of the mixed power vehicle engine when idling generating electric power. The whole car controller is electric connected to other components. The mixed power system electric power generation operating mode is split into engine driven running state and non-engine driven running state. According to the different state, controller uses different power generation load adjusting speed to change the generator and engine load synchronously.
Description
Technical field
The present invention relates to the controlling method of hybrid power automobile power system, particularly relate to a kind of controlling method that reduces idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile.
Background technique
Along with becoming increasingly conspicuous of grobal environment and energy problem, the new automobile of exploitation low emission, low oil consumption becomes the top priority of current automobile industry development.The mixed power electric car technology has been avoided the deficiency of pure electric automobile on battery technology and energy Infrastructure, is a good solution of current problem, has become the focus of current international automobile research and development.
It is that assurance battery life-span itself and vehicle performance are necessary that the hybrid electric vehicle engine idling is generated electricity to battery in time replenishes electricity (energy) amount.When hybrid vehicle is in the idle stop pattern; electronic annex (as electric air-conditioning compressor etc.) still works on; the electric weight of battery will constantly descend, and when electric weight dropped to the restriction of control program setting, motor will be reset changed the idling power generation mode over to.Very responsive to load variations during because of engine idle, when generator load changed suddenly, the rotating speed of motor will produce big ups and downs.At this moment, very violent if generator load changes, will relatively slowly cause because of the fuel feeding/ignition system governing speed of motor and shut down or the engine speed fluctuation is big and produce phenomenon such as the unusual shake of vehicle body.
Summary of the invention
The object of the present invention is to provide a kind of controlling method that reduces idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile, its engine idle generation load is the controlling method to change than low amplitude in each regulating cycle, and the generation load in the motor-powered vehicle pattern still keeps the normal amplitude of accommodation.The fluctuation of speed is less than ± 60r/min.
Technological scheme of the present invention is achieved in that the controlling method that reduces idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile, it is characterized in that control system comprises entire car controller, motor and controller thereof, motor and ECU (Electrical Control Unit) thereof, battery and management unit thereof, wherein entire car controller is electrically connected with other parts; The mixed power system generating operation mode is divided into engine-driving is travelled and the non-engine-driving two states that travels, controller adopts different generation load regulations speeds, synchronous change generator and engine load according to different states; When the information that provides from battery management unit shows that electric weight SOC is lower than the power generation region lower limit of setting in the system control program, the information that entire car controller provides according to control unit of engine at once judges this moment, whether motor was in the driving driving mode, 1. be that the load of entire car controller instruction motor, motor is regulated so that normal amplitude is corresponding; 2. deny; the entire car controller instruction is (if be the idle stop pattern before this; electric motor starting motor at first then) make the motor steady running under the idling generating rotating speed of setting; allow motor change power generation mode over to; in motor and engine load regulating cycle, slowly increase corresponding both load; reach the current generated energy requirement of mixed power system until stablizing, after this increase and decrease of generated energy is required slowly to increase or reduce the load of motor and motor in regulating cycle according to mixed power system.
Good effect of the present invention is the fluctuation of rotating speed when both having reduced engine idle, also can not make motor load exceed the design work district simultaneously.
Description of drawings
The schematic representation of Fig. 1 hybrid power control system.
Fig. 2 a-h is the work schematic representation of hybrid power control system.
Fig. 3 engine idle Generation Control logical schematic.
Embodiment
The present invention will be further described below in conjunction with embodiment:
The main motor 5 of hybrid power control system is arranged in speed changer 4 (AMT form, speed changer and main reducing gear and differential mechanism are integrated) rear end as shown in Figure 1, and rotor axis of electric directly connects with transmission output shaft; Auxiliary-motor 2 is arranged in a side of motor 1, connects with the engine crankshaft front end by belt.The controller 17 of master in the structure/auxiliary-motor controller 30/32, control unit of engine 14, automatic mechanical tranmission AMT, entire car controller 21, battery management unit 24 are mixed power system energy managements and control required electronic equipment automatically, adopt network (as CAB-bus) to connect between them; Speed-changing lever position switch 18, ignition switch 20, brake pedal position sensor 22, accelerator pedal jaw opening sensor 23 are the devices that transmit the driver drives vehicle instruction, and wherein speed-changing lever position switch 18 and the controller 17 of AMT adopt that electrical wiring harnesses are connected, ignition switch 20, brake pedal position sensor 22 be connected with entire car controller 21 employing electrical wiring harnesses with accelerator pedal jaw opening sensor 23.Employing electrical wiring harnesses such as sensors such as the water temperature on control unit of engine and the engine body, rotating speed, air mass flow and closure actuator, fuel injector are connected; Electric machine controller and coil of stator of motor adopt high voltage cable to be connected, to be connected with water temperature, rotating speed/position transducer employing electrical wiring harness on the motor body; Voltage on battery management unit and the battery pack body, electric current, temperature transducer adopt electrical wiring harness to be connected; Electrokinetic cell adopts high voltage cable to be connected with electric machine controller.
System works principle as shown in Figure 2 is as follows:
1) state before the cycling start: after ignition switch 18 was opened, the entire car controller 21 of vehicle checked at first whether the state of each system is normal, made vehicle be in normal cycling start state then.
2) cycling start state: when the driver places the driving gear with speed changer master cock 18, and during bend the throttle 23, entire car controller 21 receives the cycling start signal, and instruct main electric machine controller 30 that main motor 5 is started working, electric energy from electrokinetic cell 8 through distribution box 27, main electric machine controller 30 to main motor, electric motor starting work, power reaches driving wheel 7 through speed changer 4 output shafts, main reducing gear, transmission shaft 16/33, and powered vehicle is travelled.
3) low speed driving state: behind vehicle start, mainly travel, be pure motor driving pattern (seeing Fig. 2 b) this moment by main motor 5 powered vehicle.When electrokinetic cell 8 quantities of electric charge during less than certain numerical value, entire car controller 21 instruction control unit of engine 14 and auxiliary-motor controller 32 ato units, behind the engine running, auxiliary-motor controller 32 is a generating state with the auxiliary-motor system transition fast, power reaches driving wheel 7 through auxiliary-motor 2, auxiliary-motor controller 32, distribution box 27, main electric machine controller 30, main motor 5, speed changer 4 output shafts, main reducing gear, transmission shaft 16/33, powered vehicle is travelled, and is series connection driving mode (seeing Fig. 2 c) this moment.
4) cruising state: at this moment, engine operation is at high efficient area, and vehicle is depended merely on the output power of motor 1 and travelled, and power more than needed can be used for generator, gives electrokinetic cell 8 chargings, is motor drive driving mode (seeing Fig. 2 f, 2g) this moment.
5) full throttle acceleration mode: vehicle needs to quicken with all strength, be that accelerator pedal 23 is when all being depressed by the driver, if the state-of-charge of electrokinetic cell 8 is greater than the SOC minimum of setting, then motor 1 and main motor 5 are with maximum separately ability output, the synthetic rear driving vehicle of power quickens with all strength on speed changer 4 output shafts, is driving mode in parallel (seeing Fig. 2 d) this moment.
6) braking deceleration state: when vehicle needs braking deceleration, the driver steps on brake petal 22, brake pedal position sensor is delivered to entire car controller 21 with brake signal, entire car controller goes out the motor brake moment of torsion according to mixed power system state computation at that time, and instruct main electric machine controller 30 to brake, generate electricity by main motor 5 on request, give electrokinetic cell 8 chargings, be car load braking energy take-back model (seeing Fig. 2 h) this moment.
7) idle stop state: when the vehicle shutting engine down is in idling mode, entire car controller 21 judges according to mixed power system state at that time whether vehicle satisfies the idle stop condition, satisfied then instruct control unit of engine 14 to shut down, (see Fig. 2 a) for the engine idle shutdown mode this moment; Otherwise, keep motor 1 to continue idle running, forward other vehicle operating pattern to up to satisfying the idle stop conditioned disjunction.
8) the motor auxiliary drive during the shifting of transmission: under the cruising state, when shifting of transmission was carried out in clutch 3 separation, entire car controller 21 instruction electric machine controllers 30 made main motor 5 work.Therefore power failure-free during the gear shift has improved the driving comfort of car load.
Control system is made up of entire car controller, motor and controller thereof, motor and control unit thereof, battery and management unit thereof etc. as shown in Figure 1, and entire car controller is electrically connected with other parts; Wherein entire car controller is the upper strata master controller of control system, and it is responsible for gathering and handling the mixed power system working status parameter, and sends the operational order requirement to the low layer sub-controller.Electric machine controller is a low layer sub-controller of control system, and it is responsible for regulating parameters of electric power such as electric current, voltage, frequency, phase place, makes moment of torsion, the rotating speed of motor satisfy the entire car controller command request, and will send to entire car controller for information about.Control unit of engine is a low layer sub-controller of control system, and it is responsible for regulating the output torque and the rotating speed of motor, makes it to satisfy the entire car controller command request, and will send to entire car controller for information about.Battery management unit is a low layer sub-controller of control system, and it is responsible for detecting the parameters such as voltage, electric current and temperature of battery, calculates the SOC electrical parameter, and these parameters are sent to entire car controller.
When the information that provides when battery management unit shows that battery electric quantity is lower than the power generation region lower limit SOC 50% that sets in the system control program, the information that entire car controller provides according to control unit of engine at once judges this moment, whether motor was in the enforcement pattern that drives, as shown in Figure 3, if 1. motor is to drive the enforcement pattern, the load of entire car controller instruction this moment motor, motor will be regulated so that normal amplitude is corresponding, per second changes 2.5Nm approximately, guarantees that motor load does not exceed its proper functioning district; If 2. motor is at non-driving driving mode; entire car controller will instruct (if be the idle stop pattern before this; electric motor starting motor at first then) make the motor steady running under the idling generating rotating speed of setting; allow motor change power generation mode over to; in motor and engine load regulating cycle, slowly increase corresponding both load; per second changes 0.5Nm approximately; reach the current generated energy requirement of mixed power system until stablizing, after this increase and decrease of generated energy is required slowly to increase or reduce the load of motor and motor in regulating cycle according to mixed power system.
Claims (2)
1, reduces the controlling method of idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile, it is characterized in that: control system comprises entire car controller, motor and controller thereof, motor and control unit thereof, battery and management unit etc. thereof, entire car controller is electrically connected with other parts;
Wherein entire car controller is the upper strata master controller of control system, and it is responsible for gathering and handling the mixed power system working status parameter, and sends the operational order requirement to the low layer sub-controller.
Electric machine controller is a low layer sub-controller of control system, and it is responsible for regulating parameters of electric power such as electric current, voltage, frequency, phase place, makes moment of torsion, the rotating speed of motor satisfy the entire car controller command request, and will send to entire car controller for information about.
Control unit of engine is a low layer sub-controller of control system, and it is responsible for regulating engine output torque and rotating speed, makes it to satisfy the entire car controller command request, and will send to entire car controller for information about.
Battery management unit is a low layer sub-controller of control system, and it is responsible for detecting the parameters such as voltage, electric current and temperature of battery, calculates the SOC electrical parameter, and these parameters are sent to entire car controller.
2, the controlling method of reduction idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile according to claim 1, it is characterized in that: the mixed power system generating operation mode is divided into two states, entire car controller adopts different generation load regulations speeds, synchronous change generator and engine load according to different states; When the information that provides from battery management unit shows that electric weight SOC is lower than the power generation region lower limit of setting in the system control program, the information that entire car controller provides according to control unit of engine at once judges this moment, whether motor was in the driving driving mode, 1. be that the load of entire car controller instruction motor, motor is regulated so that normal amplitude is corresponding; 2. deny, the entire car controller instruction makes the motor steady running under the idling generating rotating speed of setting, allow motor change power generation mode over to, in motor and engine load regulating cycle, slowly increase corresponding both load, reach the current generated energy requirement of mixed power system until stablizing, after this increase and decrease of generated energy is required slowly to increase or reduce the load of motor and motor in regulating cycle according to mixed power system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510016981 CN1896476A (en) | 2005-07-15 | 2005-07-15 | Control for decreasing idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile |
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| CN 200510016981 CN1896476A (en) | 2005-07-15 | 2005-07-15 | Control for decreasing idling generating rotation-speed fluctuation of engine for mixed-kinetic automobile |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920660A (en) * | 2009-06-16 | 2010-12-22 | 孙枫 | Power supply method and system for mobile type engineering machine |
| CN102211580A (en) * | 2010-04-07 | 2011-10-12 | 北汽福田汽车股份有限公司 | Hybrid power control method, hybrid power control device and power system |
| CN102336192A (en) * | 2011-07-05 | 2012-02-01 | 苏州力久新能源科技有限公司 | Control method for stabilizing torque fluctuation of automobile by using phase regulator |
| CN102556053A (en) * | 2010-12-02 | 2012-07-11 | 通用汽车环球科技运作有限责任公司 | Systems and methods for controlling engine torque |
| CN101648511B (en) * | 2009-09-04 | 2012-11-28 | 奇瑞汽车股份有限公司 | Control method of engine speed of hybrid car in generating state |
| CN101809265B (en) * | 2007-09-25 | 2013-01-09 | 丰田自动车株式会社 | Control apparatus and control method for internal combustion engine |
| WO2015078340A1 (en) * | 2013-11-26 | 2015-06-04 | 奇瑞汽车股份有限公司 | Method and device for controlling engine idling rotational speed |
| CN104890668A (en) * | 2015-05-28 | 2015-09-09 | 安徽江淮汽车股份有限公司 | Control method for battery system of hybrid vehicle |
| CN107487319A (en) * | 2017-08-31 | 2017-12-19 | 苏州诺乐智能科技有限公司 | A kind of oil-electric mixing power control system |
| CN107963073A (en) * | 2017-12-12 | 2018-04-27 | 江铃汽车股份有限公司 | A kind of electricity-generating control method of hybrid vehicle P0 pattern motors |
| CN108051608A (en) * | 2017-12-06 | 2018-05-18 | 大陆汽车车身电子***（芜湖）有限公司 | A kind of method that engine speed is shown during engine idling |
| CN111137144A (en) * | 2019-12-30 | 2020-05-12 | 潍柴动力股份有限公司 | Control method and device for charging power battery |
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2005
- 2005-07-15 CN CN 200510016981 patent/CN1896476A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101809265B (en) * | 2007-09-25 | 2013-01-09 | 丰田自动车株式会社 | Control apparatus and control method for internal combustion engine |
| CN101920660A (en) * | 2009-06-16 | 2010-12-22 | 孙枫 | Power supply method and system for mobile type engineering machine |
| CN101648511B (en) * | 2009-09-04 | 2012-11-28 | 奇瑞汽车股份有限公司 | Control method of engine speed of hybrid car in generating state |
| CN102211580A (en) * | 2010-04-07 | 2011-10-12 | 北汽福田汽车股份有限公司 | Hybrid power control method, hybrid power control device and power system |
| CN102556053A (en) * | 2010-12-02 | 2012-07-11 | 通用汽车环球科技运作有限责任公司 | Systems and methods for controlling engine torque |
| CN102336192A (en) * | 2011-07-05 | 2012-02-01 | 苏州力久新能源科技有限公司 | Control method for stabilizing torque fluctuation of automobile by using phase regulator |
| CN102336192B (en) * | 2011-07-05 | 2013-09-11 | 苏州力久新能源科技有限公司 | Control method for stabilizing torque fluctuation of automobile by using phase regulator |
| WO2015078340A1 (en) * | 2013-11-26 | 2015-06-04 | 奇瑞汽车股份有限公司 | Method and device for controlling engine idling rotational speed |
| CN104890668A (en) * | 2015-05-28 | 2015-09-09 | 安徽江淮汽车股份有限公司 | Control method for battery system of hybrid vehicle |
| CN107487319A (en) * | 2017-08-31 | 2017-12-19 | 苏州诺乐智能科技有限公司 | A kind of oil-electric mixing power control system |
| CN108051608A (en) * | 2017-12-06 | 2018-05-18 | 大陆汽车车身电子***（芜湖）有限公司 | A kind of method that engine speed is shown during engine idling |
| CN108051608B (en) * | 2017-12-06 | 2020-09-18 | 大陆汽车车身电子***（芜湖）有限公司 | Method for displaying engine speed during idling of engine |
| CN107963073A (en) * | 2017-12-12 | 2018-04-27 | 江铃汽车股份有限公司 | A kind of electricity-generating control method of hybrid vehicle P0 pattern motors |
| CN107963073B (en) * | 2017-12-12 | 2020-02-04 | 江铃汽车股份有限公司 | Power generation control method for P0 mode motor of hybrid electric vehicle |
| CN111137144A (en) * | 2019-12-30 | 2020-05-12 | 潍柴动力股份有限公司 | Control method and device for charging power battery |
| CN111137144B (en) * | 2019-12-30 | 2021-05-18 | 潍柴动力股份有限公司 | Control method and device for charging power battery |
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Open date: 20070117 |