CN104228843B - The gas pedal moment of torsion identifying processing method of hybrid vehicle - Google Patents

The gas pedal moment of torsion identifying processing method of hybrid vehicle Download PDF

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Publication number
CN104228843B
CN104228843B CN201310243465.5A CN201310243465A CN104228843B CN 104228843 B CN104228843 B CN 104228843B CN 201310243465 A CN201310243465 A CN 201310243465A CN 104228843 B CN104228843 B CN 104228843B
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Prior art keywords
torsion
moment
gas pedal
torque
real
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CN104228843A (en
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朱军
冷宏祥
马成杰
孙俊
邱巍
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105Speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00Input parameters relating to a particular sub-units
    • B60W2510/06Combustion engines, Gas turbines
    • B60W2510/0657Engine torque
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00Input parameters relating to a particular sub-units
    • B60W2510/08Electric propulsion units
    • B60W2510/083Torque
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00Input parameters relating to overall vehicle dynamics
    • B60W2520/10Longitudinal speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00Input parameters relating to occupants
    • B60W2540/10Accelerator pedal position

Abstract

The present invention relates to the gas pedal moment of torsion identifying processing method of hybrid vehicle: calculate maximum engine torque corresponding under each speed and motor continues peak torque sum and is calculated as Base moment of torsion, motor the motor being real-time transmitted to hybrid power control unit can be added with the maximum engine torque of Real-time Feedback by peak torque and be calculated as Peak moment of torsion;Distribute Base moment of torsion according to real-time gas pedal aperture and current vehicle speed and obtain Base torque demand value;Calculate in real time under current vehicle speed Peak moment of torsion in real time, select in the Base moment of torsion that it is corresponding with under current vehicle speed the greater and deduct Base moment of torsion as Boost moment of torsion;Distribute Boost moment of torsion according to real-time gas pedal aperture and current vehicle speed and obtain Boost torque demand value;Above-mentioned Base with Boost torque demand value is added as final torque demand value, using smaller in itself and real-time Peak moment of torsion as final actual torque requirements.

Description

The gas pedal moment of torsion identifying processing method of hybrid vehicle
Technical field
The invention belongs to hybrid vehicle and control technical field, particularly relate to a kind of gas pedal moment of torsion identifying processing method of hybrid vehicle.
Background technology
In the prior art, for the hybrid vehicle system being made up of power source motor and electromotor, in this hybrid power system, how moment of torsion to driver's gas pedal is identified processing is a new problem, involves how to the combined torque of motor Yu electromotor be identified process to respond driver's gas pedal demand without existing document.Therefore, it is necessary this is studied, in order to the gas pedal demand of driver can be responded when applying hybrid vehicle system objective, accurately and efficiently, optimize and promote the work efficiency of hybrid vehicle, reduce fuel oil consumption, and improve security performance.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of gas pedal moment of torsion identifying processing method of hybrid vehicle, in order to solve the above-mentioned problems in the prior art and otherwise problem.
In order to realize above-mentioned goal of the invention, present invention employs techniques below scheme:
A kind of gas pedal moment of torsion identifying processing method of hybrid vehicle, described hybrid vehicle is provided with electromotor and motor, and the gas pedal moment of torsion identifying processing method of described hybrid vehicle includes step:
A. calculate maximum engine torque corresponding under each speed and motor continues peak torque sum and is calculated as Base moment of torsion, then the motor being real-time transmitted to hybrid power control unit by motor can be calculated as Peak moment of torsion by peak torque with the maximum engine torque obtained through Real-time Feedback phase adduction;
B. according to real-time gas pedal aperture and current vehicle speed, Base moment of torsion is allocated, the allocated after moment of torsion be Base torque demand value;
C. calculate the real-time Peak moment of torsion under current vehicle speed in real time, choose the greater in the Base moment of torsion that described real-time Peak moment of torsion is corresponding with under this current vehicle speed, then this greater is deducted this Base moment of torsion corresponding under this current vehicle speed as Boost moment of torsion;
D. according to real-time gas pedal aperture and this current vehicle speed, Boost moment of torsion is allocated, the allocated after moment of torsion be Boost torque demand value;And
F. described Base torque demand value is added with described Boost torque demand value the final torque demand value as power source response operator torque demands, then chooses the final actual torque requirements as power source response operator torque demands of the smaller in described final torque demand value and described real-time Peak moment of torsion.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, described step B is allocated meeting following condition to Base moment of torsion:
The moment of torsion with speed change distribution under the most different gas pedal apertures can not intersect;
B. linear with distribution moment of torsion and gas pedal aperture under speed;
The most single gas pedal aperture should be unique value corresponding to the distribution moment of torsion of single speed;
D. gas pedal can not have dead band, i.e. distribution moment of torsion should be in Base torque range;And
E. moment of torsion distribution is considered as driving.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, described condition e is included in when gas pedal aperture is not more than 50% the Base moment of torsion that should distribute more than 50%, to reduce the pedal travel of driver
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, described step D is allocated meeting following condition to Boost moment of torsion:
A. the gas pedal aperture setting value starting to distribute Boost moment of torsion is set according to hybrid electric working mode requirement;And
B., under any hybrid electric working pattern, the 100% of Boost moment of torsion must be reached when being under full throttle pedal aperture.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, under Normal pattern in hybrid electric working pattern, gas pedal aperture setting value is the first setting value that precentagewise count value is moderate, when gas pedal aperture reaches described first setting value, set amount value according to first and start to distribute Boost moment of torsion.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, described first setting value is 50%.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, described first amount value is set as 10%.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, under Eco pattern in hybrid electric working pattern, gas pedal aperture setting value is the precentagewise count value the second setting value higher than 50%, when gas pedal aperture reaches described second setting value, set amount value according to second and start to distribute Boost moment of torsion.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, described second setting value is 65%.
In the gas pedal moment of torsion identifying processing method of above-mentioned hybrid vehicle, alternatively, described second amount value is set as 10%.
The beneficial effects of the present invention is: use the gas pedal moment of torsion identifying processing method of the hybrid vehicle of the present invention, can the most objective, exactly combined torque to electromotor in hybrid vehicle Yu motor be identified processing, thus responding the gas pedal demand of driver rationally, efficiently, this contributes to optimizing and promoting the work efficiency of hybrid vehicle, fuel performance and security performance etc..
Accompanying drawing explanation
Below with reference to drawings and Examples, technical scheme is described in further detail.
Fig. 1 is the handling process schematic diagram of gas pedal moment of torsion one example of identifying processing method of the hybrid vehicle of the present invention.
Detailed description of the invention
It should be noted that, principle, feature and the advantage of the gas pedal moment of torsion identifying processing method of the hybrid vehicle of the present invention will be illustrated by way of example below, but what all of description was intended merely to illustrate, and they should not be interpreted as forming the present invention any restriction.In addition, any single technical characteristic being described by each embodiment mentioned by this paper or imply, or shown or implicit any single technical characteristic in the drawings, still can proceed combination in any between these technical characteristics (or its equivalent) or delete, thus obtain other embodiments more of the present invention that may the most directly mention.
Schematically show the concrete handling process of gas pedal moment of torsion one example of identifying processing method of the hybrid vehicle of the present invention the most by way of example, this hybrid vehicle is provided with electromotor and motor, combined torque can be provided by them.
Referring to this Fig. 1, in this illustration, the gas pedal moment of torsion identifying processing method of hybrid vehicle includes these steps following:
First, calculate maximum engine torque corresponding under each speed and motor continues peak torque (owing to the moment of torsion external characteristics of motor is divided into lasting moment of torsion and peak torque, wherein peak torque is instantaneous peak torque, it is only capable of working within a period of time, therefore the lasting moment of torsion of motor is the available peak torque of motor continuous firing) sum of the two and be calculated as Base moment of torsion (i.e., the torque value that the calculated off line that Base moment of torsion is relevant to speed obtains), then the motor being real-time transmitted to hybrid power control unit by motor can be added and be calculated as Peak moment of torsion (i.e. by peak torque with both the maximum engine torques obtained through Real-time Feedback, Peak moment of torsion is the real-time torque value obtained through feedback).
Subsequently, according to real-time gas pedal aperture and current vehicle speed, Base moment of torsion is allocated, the allocated after moment of torsion be Base torque demand value.In the methods of the invention, identifying processing for the torque demand of driver is to have employed gas pedal aperture and speed the two signal, wherein use GES rather than power source speed signal as input signal, its main cause allows for the have the feature that of hybrid vehicle own, its power combination pattern i.e. is more, it is possible not only to be pattern to be operated alone by motor, and can be pattern to be operated alone by electromotor, it is also possible to be to be combined driving isotype by motor and electromotor.Therefore, it is accomplished by view of these mode of operations if taking which kind of power source speed to carry out calculating, and directly uses GES the most directly, effectively.In addition, in the methods of the invention, allow to use multiple distribution principle according to real-time gas pedal aperture and current vehicle speed, Base moment of torsion to be allocated, these distribution principles can determine flexibly according to actual application scenarios, such as, can correspond to the Base torque demand value of 15% under the gas pedal aperture of 5%.
Then, calculate the real-time Peak moment of torsion under current vehicle speed more in real time, choose the greater in the middle of both Base moments of torsion that real-time Peak moment of torsion is corresponding with under this current vehicle speed, then this greater is deducted Base moment of torsion corresponding under this current vehicle speed as Boost moment of torsion.
Then, according to real-time gas pedal aperture and this current vehicle speed, Boost moment of torsion is allocated, the allocated after moment of torsion be Boost torque demand value.In the methods of the invention, allowing too to use multiple distribution principle to be allocated Boost moment of torsion according to real-time gas pedal aperture and current vehicle speed, these distribution principles can determine flexibly according to actual application scenarios.
Finally, above-mentioned Base torque demand value is added with both Boost torque demand values the final torque demand value as power source response operator torque demands, but and the moment of torsion should being actually sent out as power source, this be due to break down or Motor torque because of temperature anomaly etc. confined in the case of, likely there will be the situation through feeding back the Base moment of torsion that the real-time Peak moment of torsion obtained obtains less than calculated off line, so continuing in the present invention to choose the smaller that this final torque demand value is central with above-mentioned real-time both Peak moments of torsion, and this smaller is responded as power source the final actual torque requirements of operator torque demands.
As an example, under optional situation, above-mentioned be allocated for Base moment of torsion time can consider to meet following condition:
The moment of torsion with speed change distribution under the most different gas pedal apertures can not intersect;
B. linear with distribution moment of torsion and gas pedal aperture under speed;
The most single gas pedal aperture should be unique value corresponding to the distribution moment of torsion of single speed;
D. gas pedal can not have dead band, i.e. distribution moment of torsion should be in Base torque range;And
E. moment of torsion distribution is considered as driving, this Base moment of torsion including such as distributing more than 50% when gas pedal aperture is not more than 50%, in order to reduces the pedal travel of driver, such as can distribute the Base moment of torsion of 80% under the gas pedal aperture of 50%.
The most for example, under optional situation, above-mentioned be allocated for Boost moment of torsion time can consider to meet following condition:
A. the gas pedal aperture setting value starting to distribute Boost moment of torsion is set according to hybrid electric working mode requirement, i.e. which dictates that driver can break into instantaneous peak torque under which kind of gas pedal aperture, such as under the Normal pattern in hybrid electric working pattern (i.e. general mode), can make gas pedal aperture setting value is that setting value that precentagewise count value is moderate is (such as 50%, 52%, 55%, 48%, any moderate numerical value such as 45%, for the technical staff of automotive field, this gas pedal aperture is moderate be meant that clear, clear and definite), when gas pedal aperture reaches this setting value, just can according to set amount value (as 10% or any other appropriate amount) start to distribute Boost moment of torsion;And for example, under Eco pattern (i.e. Economy economic model), setting value that gas pedal aperture setting value is precentagewise count value higher than 50% (as 65%, 70%, 75% etc. higher than the numerical value of middle number) can be made, when gas pedal aperture reaches this setting value, it is possible to according to set amount value (as 10% or any other appropriate amount) start to distribute Boost moment of torsion.
The most no matter under any hybrid electric working pattern, the 100% of Boost moment of torsion must be reached when being under full throttle pedal aperture (i.e. referring to that gas pedal aperture is 100%).
It is enumerated above some concrete examples to elaborate the gas pedal moment of torsion identifying processing method of the hybrid vehicle of the present invention, these a few examples are intended for illustrating that the principle of the present invention and embodiment thereof are used, rather than limitation of the present invention, without departing from the spirit and scope of the present invention, those of ordinary skill in the art can also make various deformation and improvement.Therefore, the technical scheme of all equivalents all should belong to scope of the invention and the every claim by the present invention is limited.

Claims (10)

1. a gas pedal moment of torsion identifying processing method for hybrid vehicle, described hybrid vehicle is provided with electromotor and motor, it is characterised in that the gas pedal moment of torsion identifying processing method of described hybrid vehicle includes step:
A. calculate maximum engine torque corresponding under each speed and motor continues peak torque sum and is calculated as Base moment of torsion, then the motor being real-time transmitted to hybrid power control unit by motor can be calculated as Peak moment of torsion by peak torque with the maximum engine torque obtained through Real-time Feedback phase adduction;
B. according to real-time gas pedal aperture and current vehicle speed, Base moment of torsion is allocated, the allocated after moment of torsion be Base torque demand value;
C. calculate the real-time Peak moment of torsion under current vehicle speed in real time, choose the greater in the Base moment of torsion that described real-time Peak moment of torsion is corresponding with under this current vehicle speed, then this greater is deducted this Base moment of torsion corresponding under this current vehicle speed as Boost moment of torsion;
D. according to real-time gas pedal aperture and this current vehicle speed, Boost moment of torsion is allocated, the allocated after moment of torsion be Boost torque demand value;And
F. described Base torque demand value is added with described Boost torque demand value the final torque demand value as power source response operator torque demands, then chooses the final actual torque requirements as power source response operator torque demands of the smaller in described final torque demand value and described real-time Peak moment of torsion.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 1, it is characterised in that Base moment of torsion is allocated meeting in described step B following condition:
The moment of torsion with speed change distribution under the most different gas pedal apertures can not intersect;
B. linear with distribution moment of torsion and gas pedal aperture under speed;
The most single gas pedal aperture should be unique value corresponding to the distribution moment of torsion of single speed;
D. gas pedal can not have dead band, i.e. distribution moment of torsion should be in Base torque range;And
E. moment of torsion distribution is considered as driving.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 2, it is characterised in that described condition e is included in when gas pedal aperture is not more than 50% the Base moment of torsion that should distribute more than 50%, to reduce the pedal travel of driver.
4. according to the gas pedal moment of torsion identifying processing method of the hybrid vehicle described in claim 1,2 or 3, it is characterised in that Boost moment of torsion is allocated meeting following condition by described step D:
A. the gas pedal aperture setting value starting to distribute Boost moment of torsion is set according to hybrid electric working mode requirement;And
B., under any hybrid electric working pattern, the 100% of Boost moment of torsion must be reached when being under full throttle pedal aperture.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 4, it is characterized in that, under Normal pattern in hybrid electric working pattern, gas pedal aperture setting value is the first setting value that precentagewise count value is moderate, when gas pedal aperture reaches described first setting value, set amount value according to first and start to distribute Boost moment of torsion.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 5, it is characterised in that described first setting value is 50%.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 5, it is characterised in that described first sets amount value as 10%.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 4, it is characterized in that, under Eco pattern in hybrid electric working pattern, gas pedal aperture setting value is the precentagewise count value the second setting value higher than 50%, when gas pedal aperture reaches described second setting value, set amount value according to second and start to distribute Boost moment of torsion.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 8, it is characterised in that described second setting value is 65%.
The gas pedal moment of torsion identifying processing method of hybrid vehicle the most according to claim 8, it is characterised in that described second sets amount value as 10%.
CN201310243465.5A 2013-06-19 2013-06-19 The gas pedal moment of torsion identifying processing method of hybrid vehicle Active CN104228843B (en)

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CN105774799A (en) * 2016-04-22 2016-07-20 北京新能源汽车股份有限公司 Torque compensation method and system of hybrid vehicle
CN106404258B (en) * 2016-08-30 2019-11-01 潍柴动力股份有限公司 A kind of engine torque method for automatic measurement, apparatus and system
CN109421692B (en) * 2017-08-23 2020-10-02 郑州宇通客车股份有限公司 Control method and system for new energy automobile engine
CN111169465A (en) * 2020-01-15 2020-05-19 上海电气集团股份有限公司 Control method for operation of severe hybrid vehicle

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