CN1896475A - Torsional moment management of variator at vacuum for mixed-kinetic automobile - Google Patents
Torsional moment management of variator at vacuum for mixed-kinetic automobile Download PDFInfo
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- CN1896475A CN1896475A CN 200510016984 CN200510016984A CN1896475A CN 1896475 A CN1896475 A CN 1896475A CN 200510016984 CN200510016984 CN 200510016984 CN 200510016984 A CN200510016984 A CN 200510016984A CN 1896475 A CN1896475 A CN 1896475A
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
This invention relates to a kind of torque controlling method when the mixed power motor vehicle speed changer is under empty space. The controlling system includes the whole car controller, engine, controlling element of engine, accelerator opening sensor and speed changer stick position switch. The whole car controller collects the information from stick position switch of speed changer. When the information reveals empty space, the controller instructs the engine electric controlling element to make the accelerator opening value as the objective controlling value of the throttle opening of engine butterfly. So butterfly throttle opening is as same as or direct proportional to the accelerator opening. Thus, it ensures that the rotation speed of engine is constant.
Description
Technical field
The present invention relates to the controlling method of hybrid power automobile power system, particularly relate to the torque management method that a kind of hybrid-powered motor speed variator is in neutral gear.
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.
Power output and reasonable distribution thereof how to control motor and two kinds of power sources of motor are one of important contents of hybrid vehicle research.Adopt " directly moment of torsion " method (promptly to utilize the speed of a motor vehicle, accelerator pedal aperture to characterize driver's moment of torsion output requirement total to mixed power system, according to the working state of mixed power system with this moment of torsion in proportion coefficient distribute to motor and motor respectively), control theory be can simplify, the stationarity of moment of torsion output and good driving sensation and riding comfort guaranteed.But when speed changer was in neutral gear, if driver's bend the throttle, motor can't be stabilized on certain rotating speed, and promptly engine speed is in uncontrollable state.
Summary of the invention
The object of the present invention is to provide a kind of hybrid-powered motor speed variator to be in the torque management method of neutral gear, when speed changer is in neutral gear, allow the accelerator pedal aperture equal or be proportional to the engine air throttle aperture, thereby guaranteed the stable of engine speed, avoided racing of the engine to cause the situation of parts damages.
Technological scheme of the present invention is achieved in that hybrid-powered motor speed variator is in the torque management method of neutral gear, be to be carrier with the entire car controller, realize by the control system that comprises compositions such as this controller, motor and control unit thereof, accelerator pedal jaw opening sensor, speed-changing lever position switch; The information that it is characterized in that entire car controller collection shift position switch, when the information demonstration is neutral gear, entire car controller instruction engine electric-controlled unit will speed up the target control value of pedal opening value as the engine air throttle aperture, and promptly throttle opening equals the accelerator pedal aperture or both are directly proportional.
Good effect of the present invention has been to guarantee the stable of engine speed, avoids racing of the engine to cause the situation of parts damages.
Description of drawings
Fig. 1 Engine torque and rotating speed, accelerator pedal aperture, throttle opening concern schematic representation;
Fig. 2 control flow chart;
Fig. 3 is the structural representation of hybrid vehicle;
1 motor; 2 auxiliary-motors; 3 clutches; 4 speed changers; 5 main motors; (driving) wheel before 7; 8 electrokinetic cells; 12 driving mechanisms; 14 control unit of engine (or claiming ECU); 15 standby starter motors; 16 right side live axles; 17 gearbox controllers; 18 speed-changing lever position switchs; 19 signal lines; 20 ignition switches; 21 entire car controllers; 22 brake petals (containing position transducer); 23 accelerator pedals (containing jaw opening sensor); 24 battery management units; 25 trailing wheels; 26 rear axles; 27 distribution boxs; 28 hvdc transmission lines; The 29DC/DC transducer; 30 main electric machine controllers; 31 conventional A-batteries; 32 auxiliary-motor controllers; 33 left side live axles; 34 low-voltage circuits; 35 high-voltage alternating circuits.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing: as shown in Figure 3, main motor 5 is arranged in speed changer 4 (AMT form, speed changer and main reducing gear and differential mechanism are integrated) rear end, and rotor axis of electric directly connects with transmission output shaft; Auxiliary-motor 2 is arranged in motor 1 one sides, 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.
Torque management method when hybrid-powered motor speed variator is in neutral gear, engine output torque was zero when speed changer was in neutral gear.As shown in Figure 1, usually if motor is same throttle opening, along with the ascent engine output torque of rotating speed descends gradually, the rotating speed of correspondence is the stabilized (steady-state) speed of speed changer motor when being in neutral gear when output torque is zero.When adopting the output of " directly moment of torsion " method control Engine torque, accelerator pedal aperture and Engine torque are output into direct ratio, be that the certain moment of torsion of accelerator pedal aperture is just certain, not having moment of torsion as shown in phantom in Figure 1 is zero point of intersection, consequently engine speed or lasting the rising or lasting decline.As shown in Figure 2, after the engine start, if the information that speed change lever stick position switch provides is for driving shelves, controller is by " directly moment of torsion " method control vehicle driving; If information is shown as neutral gear, controller instruction engine electric-controlled unit will speed up the target control value of pedal opening value as the engine air throttle aperture, and promptly throttle opening equals the accelerator pedal aperture or both are directly proportional.
For example, to the vehicle of medium displacement engine, the accelerator pedal aperture is at 20% o'clock:
△ drives retaining if speed changer is in, and engine output torque is relevant with the speed of a motor vehicle, when the 10km/h speed driving is travelled, and the about 30Nm of engine output torque;
△ is if speed changer is in neutral, and engine output torque and the speed of a motor vehicle have nothing to do, and with engine speed change:
| Rotating speed (r/min) | 750 | 1500 | 3000 | 4000 | 5000 |
| Moment of torsion (Nm) | 60 | 80 | 50 | 25 | 10 |
Claims (1)
- Torque management method when 1, hybrid-powered motor speed variator is in neutral gear, be to be carrier with the entire car controller, realize by the control system that comprises compositions such as this controller, motor and control unit thereof, accelerator pedal jaw opening sensor, speed-changing lever position switch; It is characterized in that: entire car controller is gathered speed-changing lever position switch information, when information is shown as neutral gear, controller instruction engine electric-controlled unit will speed up the target control value of pedal opening value as the engine air throttle aperture, and promptly throttle opening equals the accelerator pedal aperture or both are directly proportional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016984 CN1896475A (en) | 2005-07-15 | 2005-07-15 | Torsional moment management of variator at vacuum for mixed-kinetic automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016984 CN1896475A (en) | 2005-07-15 | 2005-07-15 | Torsional moment management of variator at vacuum for mixed-kinetic automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1896475A true CN1896475A (en) | 2007-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510016984 Pending CN1896475A (en) | 2005-07-15 | 2005-07-15 | Torsional moment management of variator at vacuum for mixed-kinetic automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1896475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529269A (en) * | 2018-05-23 | 2019-12-03 | 丰田自动车株式会社 | Engine control system and method |
-
2005
- 2005-07-15 CN CN 200510016984 patent/CN1896475A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529269A (en) * | 2018-05-23 | 2019-12-03 | 丰田自动车株式会社 | Engine control system and method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070117 |