CN110606072B - Anti-flameout control method and device for vehicle engine of automatic gearbox - Google Patents

Anti-flameout control method and device for vehicle engine of automatic gearbox Download PDF

Info

Publication number
CN110606072B
CN110606072B CN201810534837.2A CN201810534837A CN110606072B CN 110606072 B CN110606072 B CN 110606072B CN 201810534837 A CN201810534837 A CN 201810534837A CN 110606072 B CN110606072 B CN 110606072B
Authority
CN
China
Prior art keywords
engine
torque
gear
vehicle
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810534837.2A
Other languages
Chinese (zh)
Other versions
CN110606072A (en
Inventor
仇杰
王祝
李勇
林宝生
鞠金宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC Motor Corp Ltd
Original Assignee
SAIC Motor Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAIC Motor Corp Ltd filed Critical SAIC Motor Corp Ltd
Priority to CN201810534837.2A priority Critical patent/CN110606072B/en
Publication of CN110606072A publication Critical patent/CN110606072A/en
Application granted granted Critical
Publication of CN110606072B publication Critical patent/CN110606072B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/101Infinitely variable gearings
    • 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
    • B60W30/00Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/02Control of vehicle driving stability

Abstract

The invention discloses an anti-flameout control method for an automatic gearbox vehicle engine, which comprises the following steps: judging whether the vehicle is in a working condition of quickly stepping on the accelerator after a neutral gear is put into a forward gear or a reverse gear; if the judgment result is yes, determining the basic torque of the engine; when the torque limit request value of the gearbox is larger than the basic torque of the engine, the engine ECU normally responds to the torque limit value sent by the TCU; when the requested value of the torque limit of the gearbox is smaller than the basic torque of the engine, the engine ECU ignores the torque limit value sent by the TCU and responds to the basic torque value of the engine. The method can ensure that under various environmental working conditions, the vehicle with the automatic gearbox can not flameout under the working conditions that the vehicle is rapidly stepped on the accelerator with various opening degrees after being shifted into a D gear or an R gear from a neutral gear. The invention also discloses an anti-flameout control device for the vehicle engine of the automatic gearbox.

Description

Anti-flameout control method and device for vehicle engine of automatic gearbox
Technical Field
The invention relates to the technical field of automobile engines, in particular to an anti-flameout control method of an engine matched with an automatic gearbox. The invention also relates to an anti-spark control device of an engine matched with the automatic gearbox.
Background
In the current market, under the working condition that an accelerator is quickly stepped on after a neutral gear (N gear) is shifted into a forward gear (D gear) or a backward gear (R gear), a Transmission Controller (TCU) can send a torque limiting request to an Engine Controller (ECU), and the ECU receives the request and then immediately responds to the request to reduce torque output so as to ensure starting stability and comfort and prevent the vehicle speed from being out of control. However, under conditions where the torque demand from the TCU is small and engine and transmission drag is high, the engine is prone to misfire problems.
Therefore, how to effectively prevent the engine from stalling is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an anti-flameout control method for an engine of a vehicle with an automatic gearbox. The method can ensure that under various environmental working conditions, the vehicle with the automatic gearbox can not flameout under the working conditions that the vehicle is rapidly stepped on the accelerator with various opening degrees after being shifted into a D gear or an R gear from a neutral gear.
Another object of the present invention is to provide an anti-misfire control apparatus for an automatic transmission vehicle engine that achieves the same effect.
In order to achieve the first object, the present invention provides an anti-misfire control method for an automatic transmission vehicle engine, comprising:
judging whether the vehicle is in a working condition of quickly stepping on the accelerator after a neutral gear is put into a forward gear or a reverse gear;
if the judgment result is yes, determining the basic torque of the engine;
when the torque limit request value of the gearbox is larger than the basic torque of the engine, the engine ECU normally responds to the torque limit value sent by the TCU; when the requested value of the torque limit of the gearbox is smaller than the basic torque of the engine, the engine ECU ignores the torque limit value sent by the TCU and responds to the basic torque value of the engine.
Preferably, further comprising:
compensating the basic torque of the engine to obtain the reference torque of the engine;
when the torque limit request value of the gearbox is larger than the reference torque of the engine, the engine ECU normally responds to the torque limit value sent by the TCU; when the requested value of the torque limit of the gearbox is smaller than the reference torque of the engine, the engine ECU ignores the torque limit value sent by the TCU and responds to the reference torque value of the engine.
Preferably, the method comprises the following steps:
acquiring vehicle signals including gear signals, accelerator pedal signals and vehicle speed signals;
and judging whether the vehicle is in a working condition of rapidly stepping on the accelerator after the neutral gear is put into a forward gear or a backward gear according to the vehicle signal.
Preferably, when the following conditions are met, the vehicle is judged to be in a rapid accelerator stepping condition after the neutral gear is shifted into a forward gear or a reverse gear:
the previous state of the gear signal is a neutral gear, the current state is an R gear or a D gear, and the gear signal lasts for a set time after the gear state change is recognized;
the accelerator pedal signal is greater than a set threshold value;
the vehicle speed signal is smaller than a set threshold value.
Preferably, the continuous set time after the gear state is changed is 3 s-7 s, the set threshold value of the accelerator pedal signal is 4% -8% of opening degree, and the set threshold value of the vehicle speed signal is 3 km/h-6 km/h.
Preferably, the determining the engine base torque comprises:
obtaining vehicle parameters including an engine resisting moment parameter, a gearbox resisting moment parameter and an engine torque deviation self-learning parameter;
and taking the sum of the vehicle parameters as the engine basic torque.
Preferably, the compensating the engine base torque to obtain an engine reference torque includes:
acquiring compensation signals including an accelerator pedal signal and a gearbox oil temperature signal;
determining a torque compensation amount according to the compensation signal;
and taking the sum of the engine basic torque and the torque compensation amount as an engine reference torque.
To achieve the second object, the present invention provides an anti-misfire control apparatus for an automatic transmission vehicle engine, comprising:
the judging unit is used for judging whether the vehicle is in a working condition that the vehicle is rapidly stepped on after being shifted into a forward gear or a reverse gear from a neutral gear;
the engine basic torque unit is used for determining the engine basic torque when the judgment result of the judgment unit is yes;
the engine reference torque unit is used for compensating the engine basic torque to obtain engine reference torque;
the control unit is used for controlling the engine ECU to normally respond to the torque limit value sent by the TCU when the torque limit request value of the gearbox is greater than the reference torque of the engine; and when the torque limit request value of the gearbox is smaller than the engine reference torque, controlling the engine ECU to ignore the torque limit value sent by the TCU and respond to the engine reference torque value.
Preferably, further comprising:
the engine reference torque unit is used for compensating the engine basic torque to obtain engine reference torque;
the control unit is used for controlling the engine ECU to normally respond to a torque limit value sent by the TCU when the torque limit request value of the gearbox is greater than the reference torque of the engine; when the torque limit request value of the gearbox is smaller than the reference torque of the engine, controlling the ECU of the engine to ignore the torque limit value sent by the TCU and respond to the reference torque value of the engine
Preferably, the judging unit includes:
the first subunit is used for acquiring vehicle signals including a gear signal, an accelerator pedal signal and a vehicle speed signal;
and the second subunit is used for judging whether the vehicle is in a working condition that the vehicle is rapidly stepped on after being shifted from a neutral gear into a forward gear or a reverse gear according to the vehicle signal.
Preferably, the second subunit determines that the vehicle is in a rapid-tip-in operating condition after the vehicle is shifted from the neutral gear into the forward gear or the reverse gear when the following conditions are met:
the previous state of the gear signal is a neutral gear, the current state is an R gear or a D gear, and the gear signal lasts for a set time after the gear state change is recognized;
the accelerator pedal signal is greater than a set threshold value;
the vehicle speed signal is smaller than a set threshold value.
Preferably, the engine base torque unit includes:
the acquiring unit is used for acquiring vehicle parameters including an engine resisting moment parameter, a gearbox resisting moment parameter and an engine torque deviation self-learning parameter;
and the calculation unit is used for summing the vehicle parameters and taking the sum value as the basic engine torque.
Preferably, the engine reference torque unit includes:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring compensation signals including an accelerator pedal signal and a gearbox oil temperature signal;
a torque compensation amount unit for determining a torque compensation amount according to the compensation signal;
and the calculating unit is used for summing the engine base torque and the torque compensation amount and taking the sum value as the engine reference torque.
According to the invention, a working condition judgment step is introduced on the basis of the existing engine torque response control logic, when the working condition that a vehicle is in a working condition that an accelerator is quickly stepped on after a neutral gear is shifted into a forward gear or a reverse gear is judged, an engine torque control strategy for preventing flameout is activated, the lowest torque requirement of an engine is firstly calculated, and then the lowest torque requirement is taken as the basic torque of the engine and is compared with the torque limit torque sent by a TCU (transmission control unit), if the torque limit request value of a gearbox is greater than the basic torque of the engine, an engine ECU (electronic control unit) normally responds to the torque limit value sent by; and if the torque limit request value of the gearbox is smaller than the basic torque of the engine, the engine ECU ignores the torque limit value sent by the TCU and responds to the basic torque value of the engine. Because the finally output engine torque is always larger than the basic engine torque, the engine can be ensured to have enough torque output, and the vehicle can not have the flameout problem even if the accelerator with various opening degrees is quickly stepped after the automatic gearbox vehicle is shifted into a D gear or an R gear from a neutral gear.
The control method can be realized by the automatic gearbox vehicle engine flameout prevention control device provided by the invention, and the automatic gearbox vehicle engine flameout prevention control device also has corresponding technical effects due to the technical effects of the control method.
Drawings
FIG. 1 is a control logic diagram of an anti-misfire control method for an engine of an automatic transmission vehicle provided in accordance with the present invention;
fig. 2 is a control logic diagram for determining the torque demand of the engine shown in fig. 1.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention provides an engine flameout prevention control method for preventing a vehicle from flameout under the working condition, and aims to solve the problem that the vehicle is easy to flameout under the working condition that the existing automatic gearbox vehicle is used for rapidly stepping on an accelerator with various opening degrees after a neutral gear is shifted into a D gear or an R gear.
Referring to fig. 1 and 2, fig. 1 is a control logic diagram of an anti-misfire control method for an engine of an automatic transmission vehicle according to the present invention; fig. 2 is a control logic diagram for determining the torque demand of the engine shown in fig. 1.
The anti-flameout control method for the vehicle engine of the automatic gearbox comprises the following steps of:
acquiring a gear signal, an accelerator pedal signal and a vehicle speed signal;
judging whether the vehicle is in a working condition that the vehicle is quickly stepped on after being shifted from a neutral gear into a forward gear or a backward gear according to the acquired gear signal, the accelerator pedal signal and the vehicle speed signal;
in the step, when the following conditions are met, the vehicle is judged to be in a working condition that the vehicle is rapidly stepped on after being shifted from the neutral gear into the forward gear or the reverse gear:
1. the previous state of the gear signal is a neutral gear, the current state is an R gear or a D gear, and the gear signal lasts for a set time after the gear state change is recognized;
2. the accelerator pedal signal is greater than a set threshold value;
3. the vehicle speed signal is less than a set threshold value;
specifically, the continuous set time after the gear state is changed can be 3 s-7 s, the set threshold value of the accelerator pedal signal can be 4% -8% of opening degree, and the set threshold value of the vehicle speed signal can be 3 km/h-6 km/h.
If the judgment result of the step is yes, namely the vehicle is judged to be in a working condition that the vehicle is rapidly stepped on after being shifted from a neutral gear into a forward gear or a reverse gear, the engine moment resistance parameter, the gearbox moment resistance parameter and the engine torque deviation self-learning parameter are obtained;
taking the sum of the acquired engine resisting moment parameter, the acquired gearbox resisting moment parameter and the acquired engine torque deviation self-learning parameter as the engine basic torque;
if the torque limit request value of the gearbox is larger than the basic torque of the engine, the engine ECU normally responds to the torque limit value sent by the TCU; and if the torque limit request value of the gearbox is smaller than the basic torque of the engine, the engine ECU ignores the torque limit value sent by the TCU and responds to the basic torque value of the engine.
In order to ensure the reliability of the basic torque, the basic torque of the engine can be compensated, so as to obtain the reference torque of the engine, and the specific compensation mode is as follows:
firstly, acquiring an accelerator pedal signal and a gearbox oil temperature signal;
then, determining a torque compensation amount according to an accelerator pedal signal and a gearbox oil temperature signal;
then, the sum of the engine base torque and the torque compensation amount is used as the engine reference torque.
If the basic torque of the engine is compensated, determining the required torque of the engine according to the reference torque of the engine, namely, if the torque limit required value of the gearbox is greater than the reference torque of the engine, normally responding to a torque limit value sent by a TCU (torque control unit) by an engine ECU (electronic control unit); and if the torque limit request value of the gearbox is smaller than the reference torque of the engine, the engine ECU ignores the torque limit value sent by the TCU and responds to the reference torque value of the engine.
As the smaller the pedal opening is, the smaller the engine required torque is, the larger the gearbox oil temperature is, the larger the gearbox resistance is, a pedal signal and a gearbox oil temperature signal are introduced, a torque compensation MAP (the horizontal and vertical coordinates are an accelerator pedal signal and a gearbox oil temperature signal, and a calibratable value is a torque value) is added, and the torque value is added to the engine basic torque, so that the reliability of the engine basic torque can be ensured.
The above embodiments are merely preferred embodiments of the present invention, and are not limited thereto, and on the basis of the above embodiments, various embodiments can be obtained by performing targeted adjustment according to actual needs. For example, the step of determining whether the vehicle is in a working condition of rapidly stepping on the accelerator after the vehicle is shifted from the neutral gear into the forward gear or the reverse gear and the step one of determining the basic torque of the engine can be simultaneously carried out so as to improve the response speed; or introducing other vehicle signals when judging whether the vehicle is in a working condition of rapidly stepping on the accelerator after the neutral gear is put into the forward gear or the reverse gear; or, when determining the basic engine torque, introducing more vehicle parameters; still alternatively, in determining the torque compensation amount, other signals are referred to in addition to the accelerator pedal signal and the transmission oil temperature signal, and so on. This is not illustrated here, since many implementations are possible.
In addition to the above intake air control method, the present invention also provides various anti-misfire control devices for an automatic transmission vehicle engine, comprising:
and the judging unit is used for judging whether the vehicle is in a working condition that the accelerator is quickly stepped on after the neutral gear is put into the forward gear or the reverse gear.
The engine basic torque unit is used for determining the engine basic torque when the judgment result of the judgment unit is yes;
the engine reference torque unit is used for compensating the basic torque of the engine to obtain the engine reference torque;
the control unit is used for controlling the engine ECU to normally respond to the torque limit value sent by the TCU when the torque limit request value of the gearbox is greater than the reference torque of the engine; and when the torque limit request value of the gearbox is smaller than the engine reference torque, controlling the engine ECU to ignore the torque limit value sent by the TCU and respond to the engine reference torque value.
The judging unit includes:
the first subunit is used for acquiring a gear signal, an accelerator pedal signal and a vehicle speed signal;
and the second subunit is used for judging whether the vehicle is in a working condition that the vehicle is rapidly stepped on after being shifted into a forward gear or a backward gear from a neutral gear according to the gear signal, the accelerator pedal signal and the vehicle speed signal.
When the following conditions are met, the second subunit judges that the vehicle is in a working condition of rapidly stepping on the accelerator after being shifted from the neutral gear to the forward gear or the reverse gear:
1. the previous state of the gear signal is a neutral gear, the current state is an R gear or a D gear, and the gear signal lasts for a set time after the gear state change is recognized;
2. the accelerator pedal signal is greater than a set threshold value;
3. the vehicle speed signal is smaller than a set threshold value.
The engine base torque unit includes:
the acquiring unit is used for acquiring an engine resisting moment parameter, a gearbox resisting moment parameter and an engine torque deviation self-learning parameter;
and the calculation unit is used for taking the sum of the engine resisting moment parameter, the gearbox resisting moment parameter and the engine torque deviation self-learning parameter as the engine basic torque.
In a preferred scheme, the device further comprises an engine reference torque unit, which is used for compensating the engine basic torque to obtain an engine reference torque; this engine reference torque unit includes:
the acquiring unit is used for acquiring an accelerator pedal signal and a gearbox oil temperature signal;
the torque compensation amount unit is used for determining torque compensation amount according to an accelerator pedal signal and a gearbox oil temperature signal;
and the calculating unit is used for taking the sum of the engine basic torque and the torque compensation amount as engine reference torque.
If the engine reference torque unit is arranged, the control unit is used for controlling the engine ECU to normally respond to a torque limit value sent by the TCU when the transmission torque limit request value is greater than the engine reference torque; and when the torque limit request value of the gearbox is smaller than the engine reference torque, controlling the engine ECU to ignore the torque limit value sent by the TCU and respond to the engine reference torque value.
The invention mainly aims at the control strategy of the engine torque response of the working condition that the automatic gearbox vehicle quickly steps on the accelerator after the neutral gear is shifted into the D gear and the R gear, on one hand, the control strategy identifies that the driver quickly steps on the accelerator after the N gear is shifted into the R gear or the D gear by introducing a gear signal, an accelerator pedal signal and a vehicle speed signal as input judgment conditions, and at the moment, the engine torque control strategy for preventing flameout is activated. On the other hand, an engine resisting moment parameter, a gearbox resisting moment parameter and an engine torque deviation self-learning parameter are introduced, the sum of the three parameters is used as engine basic torque, an accelerator pedal signal and a gearbox oil temperature signal are introduced as torque compensation MAP input quantity, and torque compensation quantity is output.
When the torque limit request value of the gearbox is larger than the engine reference torque (the sum of the engine base torque and the torque compensation amount), the engine ECU normally responds to the torque limit value sent by the TCU; when the torque limit request value of the gearbox is smaller than the engine reference torque, the torque limit value sent by the TCU is ignored by the engine request torque, and the engine reference torque value is responded to ensure that the engine has enough torque output to overcome the resisting torque of the engine and the gearbox, so that flameout is prevented.
The method and the device for controlling flameout prevention of the vehicle engine of the automatic gearbox provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (11)

1. An anti-flameout control method for an engine of a vehicle with an automatic transmission comprises the following steps:
judging whether the vehicle is in a working condition of quickly stepping on the accelerator after a neutral gear is put into a forward gear or a reverse gear;
if the judgment result is yes, determining the basic torque of the engine; the determining an engine base torque includes: obtaining vehicle parameters including an engine resisting moment parameter, a gearbox resisting moment parameter and an engine torque deviation self-learning parameter, and taking the sum of the vehicle parameters as engine basic torque;
when the torque limit request value of the gearbox is larger than the basic torque of the engine, the engine ECU normally responds to the torque limit value sent by the TCU; when the requested value of the torque limit of the gearbox is smaller than the basic torque of the engine, the engine ECU ignores the torque limit value sent by the TCU and responds to the basic torque value of the engine.
2. The anti-misfire control method of an automatic transmission vehicle engine as recited in claim 1, further comprising:
and compensating the basic torque of the engine to obtain the reference torque of the engine.
3. The anti-flameout control method for an automatic transmission vehicle engine according to claim 2, wherein the determining whether the vehicle is in a rapid tip-in condition after the forward gear or the reverse gear is engaged from the neutral gear comprises:
acquiring vehicle signals including gear signals, accelerator pedal signals and vehicle speed signals;
and judging whether the vehicle is in a working condition of rapidly stepping on the accelerator after the neutral gear is put into a forward gear or a backward gear according to the vehicle signal.
4. The anti-flameout control method for the vehicle engine of the automatic transmission according to claim 3, characterized in that the vehicle is judged to be in a rapid-stepping-on condition after the vehicle is shifted from the neutral gear into the forward gear or the reverse gear when the following conditions are met:
the previous state of the gear signal is a neutral gear, the current state is an R gear or a D gear, and the gear signal lasts for a set time after the gear state change is recognized;
the accelerator pedal signal is greater than a set threshold value;
the vehicle speed signal is smaller than a set threshold value.
5. The anti-flameout control method for the vehicle engine with the automatic gearbox as recited in claim 4, characterized in that the duration of the set time after the gear state is changed is 3-7 s, the set threshold of the accelerator pedal signal is 4-8% opening, and the set threshold of the vehicle speed signal is 3-6 km/h.
6. The anti-engine-stall control method for an automatic transmission vehicle according to claim 2, wherein the compensating the engine base torque to obtain an engine reference torque comprises:
acquiring compensation signals including an accelerator pedal signal and a gearbox oil temperature signal;
determining a torque compensation amount according to the compensation signal;
and taking the sum of the engine basic torque and the torque compensation amount as an engine reference torque.
7. Automatic gearbox vehicle engine prevents fire control system device, its characterized in that includes:
the judging unit is used for judging whether the vehicle is in a working condition that the vehicle is rapidly stepped on after being shifted into a forward gear or a reverse gear from a neutral gear;
the engine basic torque unit is used for determining the engine basic torque when the judgment result of the judgment unit is yes;
the engine base torque unit includes: the acquiring unit is used for acquiring vehicle parameters including an engine resisting moment parameter, a gearbox resisting moment parameter and an engine torque deviation self-learning parameter; a calculation unit for summing the vehicle parameters and taking the sum as an engine base torque;
the control unit is used for controlling the engine ECU to normally respond to the torque limit value sent by the TCU when the torque limit request value of the gearbox is greater than the basic torque of the engine; and when the torque limit request value of the gearbox is smaller than the basic torque of the engine, controlling the engine ECU to ignore the torque limit value sent by the TCU and respond to the basic torque value of the engine.
8. The automatic transmission vehicle engine anti-blowout control apparatus according to claim 7, characterized in that the engine reference torque unit obtains an engine reference torque by compensating for the engine base torque.
9. The automatic transmission vehicle engine anti-blowout control apparatus according to claim 7, characterized in that the determination unit includes:
the first subunit is used for acquiring vehicle signals including a gear signal, an accelerator pedal signal and a vehicle speed signal;
and the second subunit is used for judging whether the vehicle is in a working condition that the vehicle is rapidly stepped on after being shifted from a neutral gear into a forward gear or a reverse gear according to the vehicle signal.
10. The automatic transmission vehicle engine anti-blowout control apparatus according to claim 9, wherein the second subunit determines that the vehicle is in a rapid tip-in condition after being shifted from neutral into forward gear or reverse gear when the following conditions are satisfied:
the previous state of the gear signal is a neutral gear, the current state is an R gear or a D gear, and the gear signal lasts for a set time after the gear state change is recognized;
the accelerator pedal signal is greater than a set threshold value;
the vehicle speed signal is smaller than a set threshold value.
11. The automatic transmission vehicle engine anti-blowout control apparatus according to claim 7, characterized in that the engine reference torque unit includes:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring compensation signals including an accelerator pedal signal and a gearbox oil temperature signal;
a torque compensation amount unit for determining a torque compensation amount according to the compensation signal;
and the calculating unit is used for summing the engine base torque and the torque compensation amount and taking the sum value as the engine reference torque.
CN201810534837.2A 2018-05-29 2018-05-29 Anti-flameout control method and device for vehicle engine of automatic gearbox Active CN110606072B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810534837.2A CN110606072B (en) 2018-05-29 2018-05-29 Anti-flameout control method and device for vehicle engine of automatic gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810534837.2A CN110606072B (en) 2018-05-29 2018-05-29 Anti-flameout control method and device for vehicle engine of automatic gearbox

Publications (2)

Publication Number Publication Date
CN110606072A CN110606072A (en) 2019-12-24
CN110606072B true CN110606072B (en) 2021-06-29

Family

ID=68887555

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810534837.2A Active CN110606072B (en) 2018-05-29 2018-05-29 Anti-flameout control method and device for vehicle engine of automatic gearbox

Country Status (1)

Country Link
CN (1) CN110606072B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101693454A (en) * 2009-09-30 2010-04-14 重庆长安汽车股份有限公司 Torque limit control method of AMT engine
CN103836180A (en) * 2012-11-22 2014-06-04 广州汽车集团股份有限公司 Gear shift control method and device
CN104989537A (en) * 2015-05-27 2015-10-21 安徽江淮汽车股份有限公司 Anti-flameout control method for hybrid power engine
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
CN108005799A (en) * 2017-10-18 2018-05-08 宝沃汽车(中国)有限公司 Control method, system and the vehicle of engine

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3799816B2 (en) * 1998-04-28 2006-07-19 トヨタ自動車株式会社 Power control device for vehicle with transmission
JP4367425B2 (en) * 2006-03-07 2009-11-18 トヨタ自動車株式会社 Vehicle control device
US8414456B2 (en) * 2010-07-09 2013-04-09 Ford Global Technologies, Llc Method for starting an engine
US8574123B2 (en) * 2010-07-09 2013-11-05 Ford Global Technologies, Llc Methods and systems for engine control
CN102466032B (en) * 2010-11-08 2016-09-14 申水文 Control device for automatic transmission of vehicle
CN102756727B (en) * 2011-04-27 2015-04-15 上海汽车集团股份有限公司 Torque control method for hybrid power vehicle
US8442732B1 (en) * 2011-10-27 2013-05-14 Eaton Corporation Method and system for determining a driveline ratio for a powertrain having an auxiliary transmission
KR101459458B1 (en) * 2012-12-20 2014-11-07 현대자동차 주식회사 Drive shaft protectiion system and method
KR20150059327A (en) * 2013-11-22 2015-06-01 현대자동차주식회사 Method for controlling shifting of vehicles
GB2523184B (en) * 2014-02-18 2017-01-11 Jaguar Land Rover Ltd Vehicle control system and method
WO2015146451A1 (en) * 2014-03-25 2015-10-01 日産自動車株式会社 Engine control device for vehicle and engine control method for vehicle
CN104089002A (en) * 2014-07-01 2014-10-08 盛瑞传动股份有限公司 Shifting cooperative control method and related device
CN105235683B (en) * 2014-07-09 2018-01-23 比亚迪股份有限公司 The uphill starting control method and hill-start control device of vehicle and vehicle
US9423023B2 (en) * 2014-12-11 2016-08-23 Hyundai Motor Company Apparatus and method for protecting drive shaft
CN106800019B (en) * 2015-11-20 2019-11-01 上海汽车集团股份有限公司 A kind of control method of HCU and torque compensation
CN106907481B (en) * 2015-12-22 2019-02-15 上海汽车集团股份有限公司 Engine torque control method and automobile
CN105644561B (en) * 2015-12-25 2018-04-03 潍柴动力股份有限公司 A kind of AMT vehicle starts control method and system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101693454A (en) * 2009-09-30 2010-04-14 重庆长安汽车股份有限公司 Torque limit control method of AMT engine
CN103836180A (en) * 2012-11-22 2014-06-04 广州汽车集团股份有限公司 Gear shift control method and device
CN104989537A (en) * 2015-05-27 2015-10-21 安徽江淮汽车股份有限公司 Anti-flameout control method for hybrid power engine
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
CN108005799A (en) * 2017-10-18 2018-05-08 宝沃汽车(中国)有限公司 Control method, system and the vehicle of engine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
发动机ECU故障诊断系统研究;陆瑶成;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20130415;全文 *
湿式双离合器自动变速器的起步控制;胡亮等;《汽车实用技术》;20170730(第14期);正文 *

Also Published As

Publication number Publication date
CN110606072A (en) 2019-12-24

Similar Documents

Publication Publication Date Title
US7222012B2 (en) Axle torque based powertrain braking with range selection for coordinated torque control (CTC)
CN103256383B (en) Automatic transmission is creeped starting control system and method
US8301351B2 (en) Gear shift system for vehicle, control method and control device for automatic transmission
AU2008336078B2 (en) Part-throttle performance optimization
US7993243B2 (en) Detecting operation of a vehicle on an ascending grade
US20090234549A1 (en) Shift Hunting Control of a Hybrid Electric Vehicle
CN109780202B (en) Equip the shift shock attenuation systems and method of manual transmission vehicles
CN103363095A (en) Clutch pre-engagement control system and method of automatic transmission
CN109322990B (en) Sliding working condition torque control method
US9410618B2 (en) Adaptive shift scheduling system
US6308124B1 (en) System for determining an equivalent throttle valve for controlling automatic transmission shift points
GB2471997A (en) Automatic transmission control
US7524255B2 (en) Tip-in bump reduction methods and systems
CN110606072B (en) Anti-flameout control method and device for vehicle engine of automatic gearbox
US20130196819A1 (en) Method of controlling a speed of an engine relative to a turbine speed of a torque converter
JP2005133895A (en) Automatic transmission control device
US8498789B2 (en) Control apparatus and control method for drive source
JP2007170441A (en) Automatic transmission starting clutch control device and its method, and automatic transmission device
CN105083287A (en) Vehicle starting assisting method and device
CN110271531B (en) Automobile four-wheel drive control method, device and system
US10155518B2 (en) Method and control unit for operating a drivetrain with an automated transmission
CN106855121B (en) Shift control method for vehicle
JP4078940B2 (en) Engine control device
US9915214B2 (en) Method for controlling a speed surge of an internal combustion engine of a moving vehicle during a gearbox ratio change
JP2007113527A (en) Driving force controller for vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant