CN105799705A - Slope starting control method applicable to IMT vehicle idling start and stop work condition - Google Patents
Slope starting control method applicable to IMT vehicle idling start and stop work condition Download PDFInfo
- Publication number
- CN105799705A CN105799705A CN201610155240.8A CN201610155240A CN105799705A CN 105799705 A CN105799705 A CN 105799705A CN 201610155240 A CN201610155240 A CN 201610155240A CN 105799705 A CN105799705 A CN 105799705A
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- China
- Prior art keywords
- vehicle
- idling start
- tcu
- imt
- control method
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W30/00—Purposes 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
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18027—Drive off, accelerating from standstill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a slope starting control method applicable to the IMT vehicle idling start and stop work condition. When it is judged that a vehicle tends to stop, a road gradient acquired by a gradient sensor is judged with a threshold, and therefore the idling start and stop function is correspondingly controlled to be enabled or disenabled. The slope starting control method applicable to the IMT vehicle idling start and stop work condition can effectively solve the starting slope slip problem, and driving comfort and safety are improved.
Description
Technical field
The present invention relates to automobile engine idling start and stop technical field, be specially a kind of uphill starting control method suitable in IMT vehicle idling start and stop operating mode.
Background technology
In order to reduce the fuel oil consumption of vehicle, exhaust emissions and engine noise further, in recent years each car load factory is all in the application of exploitation new technique, wherein idling start and stop function is with advantages such as its energy-saving and environmental protection, increasing service life of engine, easy realizations, obtains the favor of all big enterprises.
Idling start and stop be a kind of can automatically controlled engine is flame-out, the system of igniting, vehicle is when the temporary parking situation such as traffic lights or traffic congestion of wait, and ECU is automatically by engine misses, thus saving oil consumption, reducing exhaust emissions, when needs continue to travel, ECU starts electromotor more automatically.
But in existing IMT vehicle, flexible Application idling start and stop function cannot be carried out according to the size of the gradient, the idling start and stop function causing vehicle on relatively steep gradient on the contrary is still activated, vehicle is made to slip by slope seriously when again starting to walk, increasing user's complaint, therefore traditional IMT vehicle increases idling start and stop function and is difficult to meet the requirement of user.
Summary of the invention
It is an object of the invention to provide a kind of uphill starting control method suitable in IMT vehicle idling start and stop operating mode, control idling start and stop function according to road grade flexibly, improve the uphill starting performance of IMT vehicle.
nullUphill starting control method suitable in IMT vehicle idling start and stop operating mode of the present invention，In vehicle travel process，TCU Real-time Collection Slope Transducer grade signal，When driver unclamps gas pedal、Brake pedal，And speed is less than certain value，Judge when vehicle has parking to be intended to，TCU compares with the threshold value preset according to the grade signal collected at that time，If now the gradient is more than threshold value，TCU then sends and forbids that signal is to ECU，The idling start and stop function of vehicle is closed，If it is now in easy flights in threshold value，Idling start and stop function is then held open，When the vehicle stopped is started to walk again，TCU is according to grade signal now and car load load，Calculate to overcome and slip by slope the required ECU engine torque increased and rotating speed，And control speed and the degree of depth that clutch combines，When ensureing starting when not stepping on the throttle stationary vehicle or slowly creep.
In the present invention, the opening and closing of idling start and stop function need not realize by driver's manual operation switch, but combine the every terms of informations such as state of motion of vehicle change, traveling trend as idling on off control strategy, energy-saving and environmental protection technology can be enjoyed, it is prevented from again starting to slip by slope simultaneously, improves driver comfort and security performance.And hardware required for the present invention puts into minimum, only need to increasing Slope Transducer on car load, cost is low, and versatility is high, it is easy to promote the use of.
Accompanying drawing explanation
Fig. 1 is the theory diagram of control system；
Fig. 2 is the flow chart of this control method.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated, and following example are only used for explaining the present invention, are not intended that limiting the scope of the present invention.
As shown in Figure 1, throttle signal and brake signal transmit a signal to TCU(transmission control unit by CAN) 1, Slope Transducer 2 is connected with TCU1 rigid line, TCU controls clutch actuating mechanism 3, simultaneously with ECU(control unit of engine) 4 carry out rotating speed and torque request, clutch actuating mechanism 3 controls separation and the combination of clutch 5.
Fig. 2 is the flow chart of this control method, in vehicle travel process, TCU Real-time Collection Slope Transducer grade signal, when driver unclamps gas pedal (throttle signal is 0), brake pedal (brake signal is 1), and speed is less than certain value, judge that, when vehicle has parking to be intended to, TCU compares according to the threshold value that the grade signal collected at that time is default with software:
If 1 now the gradient is more than threshold value, TCU then sends and forbids that signal is to ECU, and the idling start and stop function of vehicle is closed, and during parking, electromotor keeps idle；
If 2 now in easy flights in threshold value, idling start and stop function is then held open, if each Parameter Conditions meets idling start and stop function and triggers requirement during parking, ECU then automatically controlled engine stops working.
When the vehicle stopped is started to walk again, TCU is according to grade signal now and car load load, calculate to overcome and slip by slope the required ECU engine torque increased and rotating speed, and control speed and the degree of depth that clutch combines, the change of monitoring engine speed, both excessive combination it had been possible to prevent to cause engine misses, it is possible to prevent again to cause vehicle anti-slide in conjunction with less, when ensureing starting when not stepping on the throttle stationary vehicle or slowly creep, thus avoiding the situation that vehicle slips by slope when uphill starting.
Claims (1)
1. the uphill starting control method being applicable to IMT vehicle idling start and stop operating mode, it is characterized in that: in vehicle travel process, TCU Real-time Collection Slope Transducer grade signal, when driver unclamps gas pedal, brake pedal, and speed is less than certain value, judge that when vehicle has parking to be intended to, TCU compares with the threshold value preset according to the grade signal collected at that time
If now the gradient is more than threshold value, TCU then sends and forbids that signal is to ECU, and the idling start and stop function of vehicle is closed, if now in easy flights, in threshold value, idling start and stop function is then held open,
When the vehicle stopped is started to walk again, TCU is according to grade signal now and car load load, calculate to overcome and slip by slope the required ECU engine torque increased and rotating speed, and control speed and the degree of depth that clutch combines, it is ensured that during starting when not stepping on the throttle stationary vehicle or slowly creep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610155240.8A CN105799705A (en) | 2016-03-18 | 2016-03-18 | Slope starting control method applicable to IMT vehicle idling start and stop work condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610155240.8A CN105799705A (en) | 2016-03-18 | 2016-03-18 | Slope starting control method applicable to IMT vehicle idling start and stop work condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105799705A true CN105799705A (en) | 2016-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610155240.8A Pending CN105799705A (en) | 2016-03-18 | 2016-03-18 | Slope starting control method applicable to IMT vehicle idling start and stop work condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105799705A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246361A (en) * | 2016-08-23 | 2016-12-21 | 江苏三能动力总成有限公司 | A kind of control device for engine idle start stop system |
| CN106926751A (en) * | 2017-03-31 | 2017-07-07 | 北京经纬恒润科技有限公司 | A kind of control method and device of Anti-slide |
| CN107539312A (en) * | 2017-08-17 | 2018-01-05 | 重庆长安汽车股份有限公司 | The idling start-stop control system and method for AT type vehicle with automatic transmission |
| CN110254434A (en) * | 2019-05-30 | 2019-09-20 | 上海汽车集团股份有限公司 | The anti-control method slipped by slope of hybrid electric vehicle idling charging |
| CN113202921A (en) * | 2021-05-31 | 2021-08-03 | 一汽奔腾轿车有限公司 | DCT (discrete cosine transformation) vehicle type slope control method, system and equipment and vehicle |
| CN113329928A (en) * | 2019-03-15 | 2021-08-31 | 雷诺股份公司 | Method for regulating the speed of a vehicle |
| CN114771527A (en) * | 2022-04-16 | 2022-07-22 | 江铃汽车股份有限公司 | Slope start and stop anti-sliding method and system, computer equipment and readable storage medium |
| CN114919552A (en) * | 2022-06-30 | 2022-08-19 | 中国第一汽车股份有限公司 | Vehicle control method, device, equipment and medium |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246361A (en) * | 2016-08-23 | 2016-12-21 | 江苏三能动力总成有限公司 | A kind of control device for engine idle start stop system |
| CN106926751A (en) * | 2017-03-31 | 2017-07-07 | 北京经纬恒润科技有限公司 | A kind of control method and device of Anti-slide |
| CN106926751B (en) * | 2017-03-31 | 2020-04-03 | 北京经纬恒润科技有限公司 | Control method and device for preventing vehicle from sliding down slope |
| CN107539312A (en) * | 2017-08-17 | 2018-01-05 | 重庆长安汽车股份有限公司 | The idling start-stop control system and method for AT type vehicle with automatic transmission |
| CN113329928A (en) * | 2019-03-15 | 2021-08-31 | 雷诺股份公司 | Method for regulating the speed of a vehicle |
| CN110254434A (en) * | 2019-05-30 | 2019-09-20 | 上海汽车集团股份有限公司 | The anti-control method slipped by slope of hybrid electric vehicle idling charging |
| CN110254434B (en) * | 2019-05-30 | 2020-12-22 | 上海汽车集团股份有限公司 | Control method for preventing hybrid vehicle from sliding down slope during idle charging |
| CN113202921A (en) * | 2021-05-31 | 2021-08-03 | 一汽奔腾轿车有限公司 | DCT (discrete cosine transformation) vehicle type slope control method, system and equipment and vehicle |
| CN114771527A (en) * | 2022-04-16 | 2022-07-22 | 江铃汽车股份有限公司 | Slope start and stop anti-sliding method and system, computer equipment and readable storage medium |
| CN114919552A (en) * | 2022-06-30 | 2022-08-19 | 中国第一汽车股份有限公司 | Vehicle control method, device, equipment and medium |
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Application publication date: 20160727 |