CN105090481A - Method and device for determining gear of transmission - Google Patents
Method and device for determining gear of transmission Download PDFInfo
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- CN105090481A CN105090481A CN201510434201.7A CN201510434201A CN105090481A CN 105090481 A CN105090481 A CN 105090481A CN 201510434201 A CN201510434201 A CN 201510434201A CN 105090481 A CN105090481 A CN 105090481A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2306/00—Shifting
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- Control Of Transmission Device (AREA)
Abstract
The invention discloses a method and a device for determining a gear of a transmission. The method for determining the gear of the transmission comprises the following steps: determining a running mode of a vehicle according to a mode instruction input by a driver; when the running mode of the vehicle is an automatic mode, controlling the running mode of the vehicle according to the opening degree of an accelerator pedal and the change rate of the opening degree of the accelerator pedal; when the vehicle is controlled to enter an economic mode according to the opening degree of the accelerator pedal and the change rate of the opening degree of the accelerator pedal, determining the gear with the minimum energy consumption to be the target gear of the vehicle; and when the vehicle is controlled to enter a moving mode according to the opening degree of the accelerator pedal and the change rate of the opening degree of the accelerator pedal, determining the gear with the maximum acceleration of the vehicle to be the target gear of the vehicle. According to the invention, the running mode of the vehicle can be accurately controlled, thus avoiding frequent switchover for the running mode of the vehicle; and the optimal gear can be chosen, thus improving the comprehensive performance of the vehicle.
Description
Technical field
The present invention relates to field of automobile, particularly relate to a kind of transmission gear defining method and device.
Background technique
In prior art, transmission gear defining method is only determine according to the power character of vehicle or economy objectives, only can make to reach ideal effect in power character and Economy one of vehicle.Vehicle is in running, and the demand of the existing dynamic mode of driver (Sport), has again the demand of economic model (Eco), and may enter fault treatment pattern; Driver pursues power performance in accelerating process, in the operating mode of city, pursue Economy, needs safe and reliable in fault mode.But existing gear defining method only can meet driver's needs in a certain respect, the combination property of vehicle can not be made to reach optimum.
Summary of the invention
Object of the present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.
For this reason, first object of the present invention is to propose a kind of transmission gear defining method.Pass through the method, when the operating mode of vehicle is automatic mode, control the operating mode of vehicle according to the variance ratio of accelerator pedal aperture and accelerator pedal aperture, thus accurately can control the operating mode of vehicle, and the frequent switching of vehicle operating modes can be avoided; In addition, in the sport mode with the target gear that the gear that vehicle acceleration is maximum is vehicle, in the economy mode with the minimum gear of energy-output ratio for target gear, thus best gear can be selected, improve the combination property of vehicle.
Second object of the present invention is to propose a kind of transmission gear determining device.
To achieve these goals, the transmission gear defining method of first aspect present invention embodiment, comprising: according to the mode instruction of driver's input, determine the operating mode of vehicle; When the operating mode of described vehicle is automatic mode, control the operating mode of described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio; When controlling described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio and entering economic model, determine that the minimum gear of energy-output ratio is the target gear of described vehicle; When controlling described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio and entering motor pattern, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle.
The transmission gear defining method of the embodiment of the present invention, when the operating mode of vehicle is automatic mode, the operating mode of vehicle is controlled according to the variance ratio of accelerator pedal aperture and accelerator pedal aperture, thus accurately can control the operating mode of vehicle, and the frequent switching of vehicle operating modes can be avoided; In addition, in the sport mode with the target gear that the gear that vehicle acceleration is maximum is vehicle, in the economy mode with the minimum gear of energy-output ratio for target gear, thus best gear can be selected, improve the combination property of vehicle.
To achieve these goals, the transmission gear determining device of second aspect present invention embodiment, comprising: determination module and control module; Described determination module, for the mode instruction inputted according to driver, determines the operating mode of vehicle; Described control module, for when the operating mode of described vehicle is automatic mode, controls the operating mode of described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio; Described determination module, also for when described control module according to accelerator pedal aperture and accelerator pedal aperture variance ratio control described vehicle enter economic model time, determine that the minimum gear of energy-output ratio is the target gear of described vehicle; When described control module according to accelerator pedal aperture and accelerator pedal aperture variance ratio control described vehicle enter motor pattern time, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle.
The transmission gear determining device of the embodiment of the present invention, when the operating mode of vehicle is automatic mode, control module controls the operating mode of vehicle according to the variance ratio of accelerator pedal aperture and accelerator pedal aperture, thus accurately can control the operating mode of vehicle, and the frequent switching of vehicle operating modes can be avoided; In addition, determination module in the sport mode with the target gear that the gear that vehicle acceleration is maximum is vehicle, in the economy mode with the minimum gear of energy-output ratio for target gear, thus best gear can be selected, improve the combination property of vehicle.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the flow chart of a transmission gear defining method of the present invention embodiment;
Fig. 2 is the flow chart of another embodiment of transmission gear defining method of the present invention;
Fig. 3 is the schematic diagram of an X-Y scheme embodiment in transmission gear defining method of the present invention;
Fig. 4 is the structural representation of a transmission gear determining device of the present invention embodiment.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
Fig. 1 is the flow chart of a transmission gear defining method of the present invention embodiment, and as shown in Figure 1, this transmission gear defining method can comprise:
Step 101, according to the mode instruction of driver's input, determines the operating mode of vehicle.
Particularly, when driver presses the button of (Auto) pattern automatically, vehicle according to the Auto mode instruction of driver's input, can determine that the operating mode of vehicle is Auto pattern; When driver presses the button of motion (Sport) pattern, vehicle according to the Sport mode instruction of driver's input, can determine that the operating mode of vehicle is Sport pattern; When driver presses the button of economy (Eco) pattern, vehicle according to the Eco mode instruction of driver's input, can determine that the operating mode of vehicle is Eco pattern.
In addition, for example, when driver presses the button of fault mode, such as, when driver presses the button of Hazard Warning Lamps, vehicle can determine that the operating mode of vehicle is fault mode.Certainly, also can determine that vehicle is in fault mode by other means, the present embodiment is to determining that the mode that vehicle is in fault mode is not construed as limiting.
Step 102, when the operating mode of above-mentioned vehicle is Auto pattern, controls the operating mode of above-mentioned vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio.
Wherein, above-mentioned accelerator pedal aperture and above-mentioned accelerator pedal aperture variance ratio can Real-time Collections.
Particularly, when the operating mode of above-mentioned vehicle is Auto pattern, the operating mode controlling above-mentioned vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio can be: according to the transition point of above-mentioned accelerator pedal aperture and above-mentioned accelerator pedal aperture variance ratio determination accelerator pedal aperture variance ratio, then control the operating mode of above-mentioned vehicle according to above-mentioned accelerator pedal aperture variance ratio and above-mentioned transition point.
Wherein, above-mentioned transition point comprises the first transition point and the second transition point; At this moment, according to the operating mode of above-mentioned accelerator pedal aperture variance ratio and above-mentioned transition point control vehicle can be: when above-mentioned accelerator pedal aperture variance ratio is greater than the first transition point, controls above-mentioned vehicle and enter Sport pattern; When above-mentioned accelerator pedal aperture variance ratio is less than the second transition point, controls above-mentioned vehicle and enter Eco pattern.
When controlling above-mentioned vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio and entering Eco pattern, perform step 103; When controlling above-mentioned vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio and entering Sport pattern, perform step 104.
Step 103, determines that the minimum gear of energy-output ratio is the target gear of above-mentioned vehicle.
Wherein, energy-output ratio is minimum can be: engine fuel consumption quantity and/or motor power consumption minimum.
Step 104, determines that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle.
In the present embodiment, after step 101, when the operating mode of above-mentioned vehicle is Eco pattern, determine that the minimum gear of energy-output ratio is the target gear of above-mentioned vehicle; When the operating mode of above-mentioned vehicle is Sport pattern, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle; When above-mentioned vehicle is in fault mode, carry out the gear process of fault mode.
In the present embodiment, determine that the minimum gear of energy-output ratio is the target gear of above-mentioned vehicle and can is: if above-mentioned vehicle is in simple dynamic mode, then according to demand torque and the current vehicle speed at the wheel place of above-mentioned vehicle, calculate output torque and the rotating speed of power engine under each gear in gear all undetermined corresponding to current vehicle speed, and be the target gear of above-mentioned vehicle according to the gear that the characteristic curve interpolation determination energy-output ratio of above-mentioned power engine is minimum; Wherein, above-mentioned vehicle is in simple dynamic mode and can is: above-mentioned vehicle is in electric-only mode, or above-mentioned vehicle is in pure engine working mode; Above-mentioned power engine can comprise: motor and motor; When above-mentioned power engine is motor, the characteristic curve of above-mentioned power engine is universal characteristic curve of engine; When above-mentioned power engine is motor, the characteristic curve of above-mentioned power engine is the efficiency characteristic of motor.
If above-mentioned vehicle is in hybrid mode, then in the gear all undetermined that above-mentioned vehicle current vehicle speed is corresponding, determine that motor is along the work of optimal economic linearity curve, and comprehensively amount to the target gear that the minimum gear of rear energy-output ratio is above-mentioned vehicle.
In the present embodiment, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle and can is: if above-mentioned vehicle is in simple dynamic mode, then when the power engine of above-mentioned vehicle works along external characteristic curve, calculate the vehicle acceleration under each gear in gear all undetermined corresponding to the current vehicle speed of above-mentioned vehicle, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle; If above-mentioned vehicle is in hybrid mode, then by the external characteristic curve of the motor of above-mentioned vehicle and motor Peak torque curve combining, according to the vehicle acceleration under each gear in the gear all undetermined that the current vehicle speed of the above-mentioned vehicle of curve calculation after superposition is corresponding, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle.
Wherein, above-mentioned vehicle is in simple dynamic mode and can is: above-mentioned vehicle is in electric-only mode, or above-mentioned vehicle is in pure engine working mode; Above-mentioned power engine can comprise: motor and/or motor.
In addition, in the present embodiment, if determine that vehicle is in fault mode, then carry out the gear process of fault mode.Wherein, the gear process of fault mode needs to carry out according to actual conditions, and such as motor or motor have during hypervelocity trend and be placed in top grade, and engine speed is placed in low grade lower than during idling, is placed in neutral gear when power can not cut off.
Above-mentioned transmission gear defining method, when the operating mode of vehicle is Auto pattern, control the operating mode of vehicle according to the variance ratio of accelerator pedal aperture and accelerator pedal aperture, thus accurately can control the operating mode of vehicle, and the frequent switching of vehicle operating modes can be avoided; In addition, with the target gear that the gear that vehicle acceleration is maximum is vehicle under Sport pattern, under Eco pattern with the minimum gear of energy-output ratio for target gear, thus best gear can be selected, improve the combination property of vehicle.
Fig. 2 is the flow chart of another embodiment of transmission gear defining method of the present invention, and as shown in Figure 2, this transmission gear defining method can comprise:
Step 201, starts.
Step 202, according to the mode instruction of driver's input, determines the operating mode of vehicle.
Particularly, when driver presses the button of Auto pattern, vehicle according to the Auto mode instruction of driver's input, can determine that the operating mode of vehicle is Auto pattern; When driver presses the button of Sport pattern, vehicle according to the Sport mode instruction of driver's input, can determine that the operating mode of vehicle is Sport pattern; When driver presses the button of Eco pattern, vehicle according to the Eco mode instruction of driver's input, can determine that the operating mode of vehicle is Eco pattern.
In addition, for example, when driver presses the button of fault mode, such as, when driver presses the button of Hazard Warning Lamps, vehicle can determine that the operating mode of vehicle is fault mode.
Step 203, judges whether above-mentioned vehicle is in fault mode; If so, then step 204 is performed; If above-mentioned vehicle is not in fault mode, then when the operating mode of above-mentioned vehicle is Auto pattern, perform step 205; When the operating mode of above-mentioned vehicle is Eco pattern, perform step 208; When the operating mode of above-mentioned vehicle is Sport pattern, perform step 211.
Step 204, carries out the gear process of fault mode, then performs step 202.
Wherein, the gear process of fault mode needs to carry out according to actual conditions, and such as motor or motor have during hypervelocity trend and be placed in top grade, and engine speed is placed in low grade lower than during idling, is placed in neutral gear when power can not cut off.
Step 205, according to the X-Y scheme of accelerator pedal aperture and accelerator pedal aperture variance ratio, the real-time size in conjunction with accelerator pedal aperture determines the first transition point and second transition point of accelerator pedal aperture variance ratio on critical line 1 and critical line 2.
In the following description, represent accelerator pedal aperture with AP, represent accelerator pedal aperture variance ratio with dAP, represent the first transition point with dAP_th1, represent the second transition point with dAP_th2.
Wherein, above-mentioned X-Y scheme can as shown in Figure 3, and in Fig. 3, curve can be demarcated, and Fig. 3 is the schematic diagram of an X-Y scheme embodiment in transmission gear defining method of the present invention.
Step 206, judges whether dAP is greater than dAP_th1.If so, then control vehicle and enter Sport pattern, then perform step 211; If not, then step 207 is performed.
Step 207, judges whether dAP is less than dAP_th2.If so, then control vehicle and enter Eco pattern, then perform step 208; If not, then execution step 206 is returned.
Step 208, judges whether above-mentioned vehicle is in simple dynamic mode.If so, then perform step 209, if not, namely above-mentioned vehicle is in hybrid mode, then perform step 210.
Wherein, above-mentioned vehicle is in simple dynamic mode and can is: above-mentioned vehicle is in electric-only mode, or above-mentioned vehicle is in pure engine working mode.
Step 209, according to demand torque and the current vehicle speed at the wheel place of above-mentioned vehicle, calculate output torque and the rotating speed of power engine under each gear in gear all undetermined corresponding to current vehicle speed, and be the target gear of above-mentioned vehicle according to the gear that the characteristic curve interpolation determination energy-output ratio of above-mentioned power engine is minimum.Then step 202 is performed.
Wherein, above-mentioned power engine can comprise: motor and/or motor; When above-mentioned power engine is motor, the characteristic curve of above-mentioned power engine is universal characteristic curve of engine; When above-mentioned power engine is motor, the characteristic curve of above-mentioned power engine is the efficiency characteristic of motor.
Step 210, in the gear all undetermined that above-mentioned vehicle current vehicle speed is corresponding, determines that motor is along the work of optimal economic linearity curve, and comprehensively amounts to the target gear that the minimum gear of rear energy-output ratio is above-mentioned vehicle.Then step 202 is performed.
Step 211, judges whether above-mentioned vehicle is in simple dynamic mode.If so, then step 212 is performed; If not, namely above-mentioned vehicle is in hybrid mode, then perform step 213.
Wherein, above-mentioned vehicle is in simple dynamic mode and can is: above-mentioned vehicle is in electric-only mode, or above-mentioned vehicle is in pure engine working mode.
Step 212, when the power engine of above-mentioned vehicle works along external characteristic curve, calculate the vehicle acceleration under each gear in gear all undetermined corresponding to the current vehicle speed of above-mentioned vehicle, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle.Then step 202 is performed.
Wherein, above-mentioned power engine can comprise: motor and/or motor.
Step 213, by the external characteristic curve of the motor of above-mentioned vehicle and motor Peak torque curve combining, according to the vehicle acceleration under each gear in the gear all undetermined that the current vehicle speed of the above-mentioned vehicle of curve calculation after superposition is corresponding, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle.Then step 202 is performed.
Above-mentioned transmission gear defining method, when the operating mode of vehicle is Auto pattern, control the operating mode of vehicle according to the variance ratio of accelerator pedal aperture and accelerator pedal aperture, thus accurately can control the operating mode of vehicle, and the frequent switching of vehicle operating modes can be avoided; In addition, with the target gear that the gear that vehicle acceleration is maximum is vehicle under Sport pattern, under Eco pattern with the minimum gear of energy-output ratio for target gear, thus best gear can be selected, improve the combination property of vehicle.
Fig. 4 is the structural representation of a transmission gear determining device of the present invention embodiment, transmission gear determining device in the present embodiment can be arranged in vehicle, realize the flow process that the present invention is embodiment illustrated in fig. 1, as shown in Figure 4, above-mentioned transmission gear determining device can comprise: determination module 41 and control module 42;
Wherein, determination module 41, for the mode instruction inputted according to driver, determines the operating mode of vehicle; Particularly, when driver presses the button of (Auto) pattern automatically, vehicle according to the Auto mode instruction of driver's input, can determine that the operating mode of vehicle is Auto pattern; When driver presses the button of motion (Sport) pattern, vehicle according to the Sport mode instruction of driver's input, can determine that the operating mode of vehicle is Sport pattern; When driver presses the button of economy (Eco) pattern, vehicle according to the Eco mode instruction of driver's input, can determine that the operating mode of vehicle is Eco pattern.
In addition, for example, when driver presses the button of fault mode, such as, when driver presses the button of Hazard Warning Lamps, vehicle can determine that the operating mode of vehicle is fault mode.Certainly, also can determine that vehicle is in fault mode by other means, the present embodiment is to determining that the mode that vehicle is in fault mode is not construed as limiting.
Control module 42, for when the operating mode of above-mentioned vehicle is Auto pattern, controls the operating mode of above-mentioned vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio; Then determination module 41, also for when control module 42 according to accelerator pedal aperture and accelerator pedal aperture variance ratio control above-mentioned vehicle enter Eco pattern time, determine that the minimum gear of energy-output ratio is the target gear of above-mentioned vehicle; When control module 42 according to accelerator pedal aperture and accelerator pedal aperture variance ratio control above-mentioned vehicle enter Sport pattern time, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle.
Wherein, control module 42, specifically for the transition point according to above-mentioned accelerator pedal aperture and above-mentioned accelerator pedal aperture variance ratio determination accelerator pedal aperture variance ratio, then control the operating mode of above-mentioned vehicle according to above-mentioned accelerator pedal aperture variance ratio and above-mentioned transition point.
Wherein, above-mentioned transition point comprises the first transition point and the second transition point; At this moment, control module 42, specifically for when above-mentioned accelerator pedal aperture variance ratio is greater than the first transition point, controls above-mentioned vehicle and enters Sport pattern; When above-mentioned accelerator pedal aperture variance ratio is less than the second transition point, controls above-mentioned vehicle and enter Eco pattern.
In the present embodiment, determination module 41, also for when the operating mode of above-mentioned vehicle is Eco pattern, determines that the minimum gear of energy-output ratio is the target gear of above-mentioned vehicle; When the operating mode of above-mentioned vehicle is Sport pattern, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle; When above-mentioned vehicle is in fault mode, carry out the gear process of fault mode.
In the present embodiment, determination module 41, specifically for when above-mentioned vehicle is in simple dynamic mode, according to demand torque and the current vehicle speed at the wheel place of above-mentioned vehicle, calculate output torque and the rotating speed of power engine under each gear in gear all undetermined corresponding to current vehicle speed, and be the target gear of above-mentioned vehicle according to the gear that the characteristic curve interpolation determination energy-output ratio of above-mentioned power engine is minimum; When above-mentioned vehicle is in hybrid mode, in the gear all undetermined that above-mentioned vehicle current vehicle speed is corresponding, determine that motor is along the work of optimal economic linearity curve, and comprehensively amount to the target gear that the minimum gear of rear energy-output ratio is above-mentioned vehicle.
Wherein, above-mentioned vehicle is in simple dynamic mode and can is: above-mentioned vehicle is in electric-only mode, or above-mentioned vehicle is in pure engine working mode; Above-mentioned power engine can comprise: motor and motor; When above-mentioned power engine is motor, the characteristic curve of above-mentioned power engine is universal characteristic curve of engine; When above-mentioned power engine is motor, the characteristic curve of above-mentioned power engine is the efficiency characteristic of motor.
In the present embodiment, determination module 41, specifically for when above-mentioned vehicle is in simple dynamic mode, when the power engine of above-mentioned vehicle works along external characteristic curve, calculate the vehicle acceleration under each gear in gear all undetermined corresponding to the current vehicle speed of above-mentioned vehicle, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle; When above-mentioned vehicle is in hybrid mode, by the external characteristic curve of the motor of above-mentioned vehicle and motor Peak torque curve combining, according to the vehicle acceleration under each gear in the gear all undetermined that the current vehicle speed of the above-mentioned vehicle of curve calculation after superposition is corresponding, determine that the maximum gear of above-mentioned vehicle acceleration is the target gear of above-mentioned vehicle.
Wherein, above-mentioned vehicle is in simple dynamic mode and can is: above-mentioned vehicle is in electric-only mode, or above-mentioned vehicle is in pure engine working mode; Above-mentioned power engine can comprise: motor and/or motor.
In addition, in the present embodiment, if determination module 41 determines that vehicle is in fault mode, then carry out the gear process of fault mode.Wherein, the gear process of fault mode needs to carry out according to actual conditions, and such as motor or motor have during hypervelocity trend and be placed in top grade, and engine speed is placed in low grade lower than during idling, is placed in neutral gear when power can not cut off.
Above-mentioned transmission gear determining device, when the operating mode of vehicle is Auto pattern, control module 42 controls the operating mode of vehicle according to the variance ratio of accelerator pedal aperture and accelerator pedal aperture, thus accurately can control the operating mode of vehicle, and the frequent switching of vehicle operating modes can be avoided; In addition, the target gear that it is vehicle that determination module 41 is determined with the gear that vehicle acceleration is maximum under Sport pattern, determine with the minimum gear of energy-output ratio for target gear under Eco pattern, thus best gear can be selected, improve the combination property of vehicle.
It should be noted that, in describing the invention, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logical function to data-signal, there is the specific integrated circuit of suitable combinational logic gate circuit, programmable gate array (ProgrammableGateArray; Hereinafter referred to as: PGA), field programmable gate array (FieldProgrammableGateArray; Hereinafter referred to as: FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each function module in each embodiment of the present invention can be integrated in a puocessing module, also can be that the independent physics of modules exists, also can two or more module integrations in a module.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (12)
1. a transmission gear defining method, is characterized in that, comprising:
According to the mode instruction of driver's input, determine the operating mode of vehicle;
When the operating mode of described vehicle is automatic mode, control the operating mode of described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio;
When controlling described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio and entering economic model, determine that the minimum gear of energy-output ratio is the target gear of described vehicle;
When controlling described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio and entering motor pattern, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle.
2. method according to claim 1, is characterized in that, the described operating mode controlling described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio comprises:
According to the transition point of described accelerator pedal aperture and described accelerator pedal aperture variance ratio determination accelerator pedal aperture variance ratio;
The operating mode of described vehicle is controlled according to described accelerator pedal aperture variance ratio and described transition point.
3. method according to claim 2, is characterized in that, described transition point comprises the first transition point and the second transition point;
The described operating mode controlling described vehicle according to described accelerator pedal aperture variance ratio and described transition point comprises:
When described accelerator pedal aperture variance ratio is greater than described first transition point, controls described vehicle and enter motor pattern;
When described accelerator pedal aperture variance ratio is less than described second transition point, controls described vehicle and enter economic model.
4. method according to claim 1, is characterized in that, the described mode instruction according to driver's input, after determining the operating mode of vehicle, also comprises:
When the operating mode of described vehicle is economic model, determine that the minimum gear of energy-output ratio is the target gear of described vehicle;
When the operating mode of described vehicle is motor pattern, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle;
When described vehicle is in fault mode, carry out the gear process of fault mode.
5. the method according to claim 1 or 4, is characterized in that, describedly determines that the minimum gear of energy-output ratio is that the target gear of described vehicle comprises:
If described vehicle is in simple dynamic mode, then according to demand torque and the current vehicle speed at the wheel place of described vehicle, calculate output torque and the rotating speed of power engine under each gear in gear all undetermined corresponding to described current vehicle speed, and be the target gear of described vehicle according to the gear that the characteristic curve interpolation determination energy-output ratio of described power engine is minimum;
If described vehicle is in hybrid mode, then in the gear all undetermined that described vehicle current vehicle speed is corresponding, determine that motor is along the work of optimal economic linearity curve, and comprehensively amount to the target gear that the minimum gear of rear energy-output ratio is described vehicle.
6. the method according to claim 1 or 4, is characterized in that, describedly determines that the maximum gear of described vehicle acceleration is that the target gear of described vehicle comprises:
If described vehicle is in simple dynamic mode, then when the power engine of described vehicle works along external characteristic curve, calculate the vehicle acceleration under each gear in gear all undetermined corresponding to the current vehicle speed of described vehicle, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle;
If described vehicle is in hybrid mode, then by the external characteristic curve of the motor of described vehicle and motor Peak torque curve combining, vehicle acceleration in the gear all undetermined that the current vehicle speed of vehicle is corresponding according to the curve calculation after superposition under each gear, determines that the maximum gear of described vehicle acceleration is the target gear of described vehicle.
7. a transmission gear determining device, is characterized in that, comprising: determination module and control module;
Described determination module, for the mode instruction inputted according to driver, determines the operating mode of vehicle;
Described control module, for when the operating mode of described vehicle is automatic mode, controls the operating mode of described vehicle according to accelerator pedal aperture and accelerator pedal aperture variance ratio;
Described determination module, also for when described control module according to accelerator pedal aperture and accelerator pedal aperture variance ratio control described vehicle enter economic model time, determine that the minimum gear of energy-output ratio is the target gear of described vehicle; When described control module according to accelerator pedal aperture and accelerator pedal aperture variance ratio control described vehicle enter motor pattern time, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle.
8. device according to claim 7, is characterized in that,
Described control module, specifically for the transition point according to described accelerator pedal aperture and described accelerator pedal aperture variance ratio determination accelerator pedal aperture variance ratio, controls the operating mode of described vehicle according to described accelerator pedal aperture variance ratio and described transition point.
9. device according to claim 8, is characterized in that, described transition point comprises the first transition point and the second transition point;
Described control module, specifically for when described accelerator pedal aperture variance ratio is greater than described first transition point, controls described vehicle and enters motor pattern; When described accelerator pedal aperture variance ratio is less than described second transition point, controls described vehicle and enter economic model.
10. device according to claim 7, is characterized in that,
Described determination module, also for when the operating mode of described vehicle is economic model, determines that the minimum gear of energy-output ratio is the target gear of described vehicle; When the operating mode of described vehicle is motor pattern, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle; When described vehicle is in fault mode, carry out the gear process of fault mode.
11. devices according to claim 7 or 10, is characterized in that,
Described determination module, specifically for when described vehicle is in simple dynamic mode, according to demand torque and the current vehicle speed at the wheel place of described vehicle, calculate output torque and the rotating speed of power engine under each gear in gear all undetermined corresponding to described current vehicle speed, and be the target gear of described vehicle according to the gear that the characteristic curve interpolation determination energy-output ratio of described power engine is minimum; When described vehicle is in hybrid mode, in the gear all undetermined that described vehicle current vehicle speed is corresponding, determine that motor is along the work of optimal economic linearity curve, and comprehensively amount to the target gear that the minimum gear of rear energy-output ratio is described vehicle.
12. devices according to claim 7 or 10, is characterized in that,
Described determination module, specifically for when described vehicle is in simple dynamic mode, when the power engine of described vehicle works along external characteristic curve, calculate the vehicle acceleration under each gear in gear all undetermined corresponding to the current vehicle speed of described vehicle, determine that the maximum gear of described vehicle acceleration is the target gear of described vehicle; When described vehicle is in hybrid mode, by the external characteristic curve of the motor of described vehicle and motor Peak torque curve combining, vehicle acceleration in the gear all undetermined that the current vehicle speed of vehicle is corresponding according to the curve calculation after superposition under each gear, determines that the maximum gear of described vehicle acceleration is the target gear of described vehicle.
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